GE ADTS542F User Manual

GE  
Digital Solutions  
GE Air Data Test Sets  
ADTS542F/552F/553F/554F  
User Manual K0553 Revision C  
ADTS542F/552F/553F/554F User Manual  
1
Introduction  
This User Manual provides operating instructions for the Air Data Test Sets (ADTS) compatible with the  
requirements of first line operation.  
Scope  
This User Manual contains the description, identification data and operating procedures for the user of this  
equipment.  
Safety  
The manufacturer has designed this equipment to be safe when operated using the procedures detailed in  
this manual and the Safety and Installation Guide K0554. Do not use this equipment for any other purpose  
than that stated.  
This publication contains operating and safety instructions that must be followed to ensure safe operation  
and to maintain the equipment in a safe condition. The safety instructions are either warnings or cautions  
issued to protect the user and the equipment from injury or damage. Safety instructions are indicated using  
a warning symbol in the text.  
Use qualified* technicians and good engineering practice for all procedures in this publication.  
Pressure  
Do not apply pressure greater than the maximum safe working pressure to the equipment.  
Toxic Materials  
There are no known toxic materials used in this equipment.  
Maintenance  
The equipment must be maintained using the manufacturer’s procedures and should be carried out by the  
manufacturer’s service department or approved service agents.  
Technical Advice  
For technical advice contact the manufacturer or subsidiary.  
*
A qualified technician must have the necessary technical knowledge, documentation, special test  
equipment and tools to carry out the required work on this equipment.  
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ADTS542F/552F/553F/554F User Manual  
Marks and Symbols on the equipment  
This equipment meets the requirements of all relevant European safety directives.  
The equipment carries the CE mark.  
This symbol, on the equipment, indicates that the user should read the user manual.  
This symbol, on the equipment, indicates a warning and that the user should refer to  
the user manual.  
Ce symbole, sur l’instrument, indique que l’utilisateur doit consulter le manuel d’utili-  
sation. Ce symbole, dans le manuel, indique une situation dangereuse.  
This symbol warns the user of the danger of electric shock.  
Ce symbole alerte l’utilisateur sur le danger de choc électrique.  
Do not dispose of this product as household waste. Use an approved organisation  
that collects and/or recycles waste electrical and electronic equipment. For more  
information, contact one of these:  
- Our customer service department: www.gemeasurement.com  
- Your local government office.  
The Bluetooth® wireless technology word mark and logos are registered trademarks  
owned by Bluetooth® SIG, Inc. and any use of such marks by GE is under license.  
Other trademarks and trade names are those of their respective owners.  
For the list of GE approved service centres, go to: www.gemeasurement.com  
K0553 Revision C  
ADTS542F/552F/553F/554F User Manual  
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Compliance Statements  
Note: You can view the compliance information stored on the ADTS Touch as follows:  
From the ADTS Touch Dashboard, select:  
1. Tools  
2. Bluetooth®  
3. Select the region or country of interest from the scroll down list, e.g. for Japan select Japan.  
FCC Warning Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:  
(1) This device may not cause harmful interference, and  
(2) This device must accept any interference received, including interference that may cause undesired  
operation.  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End  
users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter  
must not be co-located or operating in conjunction with any other antenna or transmitter.  
Changes or modifications not expressly approved by the party responsible for compliance could void the  
user‘s authority to operate the equipment.  
USA  
ADTS542F/ADTS552F/ADTS553F/ADTS554F  
This device has been tested and found to comply with the limits for a class A digital device, pursuant to Part  
15 of the FCC rules.  
Operation is subject to the following two conditions:  
1. This device may not cause harmful interference.  
2. This device must accept any interference received, including interference that may cause undesired  
operation.  
This device is only authorized for use in a mobile application. At least 20 cm of separation distance between  
the ADTS542F device and the user's body must be maintained at all times.  
ADTS542F: Contains Transmitter Module FCC ID: QOQWT41.  
ADTS552F: FCC ID: 2AAVWADTS552F-01  
ADTS Touch  
This device has been tested and found to comply with the limits for a class A digital device, pursuant to Part  
15 of the FCC rules.  
Operation is subject to the following two conditions:  
1. This device may not cause harmful interference.  
2. This device must accept any interference received, including interference that may cause undesired  
operation.  
This device must not be used with any other antenna or transmitter that has not been approved to operate  
in conjunction with this device.  
FCC ID: 2AAVWADTSTOUCH-01  
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ADTS542F/552F/553F/554F User Manual  
ADTS TOUCH-ER  
This device has been tested and found to comply with the limits for a class A digital device, pursuant to Part  
15 of the FCC rules.  
Operation is subject to the following two conditions:  
1. This device may not cause harmful interference.  
2. This device must accept any interference received, including interference that may cause undesired  
operation.  
This device must not be used with any other antenna or transmitter that has not been approved to operate  
in conjunction with this device.  
FCC ID: 2AAVWADTSTOUCH-02  
CANADA  
ADTS542F/ADTS552F/ADTS553F/ADTS554F  
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and  
maximum (or lesser) gain approved for the transmitter by Industry Canada.  
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that  
the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful  
communication.  
This radio transmitter has been approved by Industry Canada to operate with the antenna types listed below  
with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater  
than the maximum gain indicated for that type, are strictly prohibited for use with this device.  
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the  
following two conditions:  
1. This device may not cause interference.  
2. This device must accept any interference, including interference that may cause undesired operation of  
the device.  
ADTS542F: Contains IC ID: 5123A-BGTWT41 - dipole antenna: 50 ohms, 2.3dBi gain  
ADTS552F: IC ID: 12097A-ADTS552F01 - patch antenna: 50 ohms, 6.662dBi gain  
ADTS542F/ADTS552F/ADTS553F/ADTS554F  
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une  
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada.  
Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut  
choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne  
dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.  
Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne  
énumérés ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste,  
et dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de  
l'émetteur.  
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de  
licence. L'exploitation est autorisée aux deux conditions suivantes:  
1. l'appareil ne doit pas produire de brouillage.  
2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est  
susceptible d'en compromettre le fonctionnement.  
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ADTS542F: contient IC ID: 5123A-BGTWT41 - antenne dipole: 50 ohms, 2.3dBi gain  
ADTS552F: IC ID: 12097A-ADTS552F01 - antenne patch: 50 ohms, 6.662dBi gain  
ADTS Touch  
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and  
maximum (or lesser) gain approved for the transmitter by Industry Canada.  
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that  
the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful  
communication.  
This radio transmitter (12097A-ADTSTOUCH01) has been approved by Industry Canada to operate with the  
antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this  
list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with  
this device.  
dipole antenna: 50 ohms, 2.3dBi gain  
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the  
following two conditions:  
1. This device may not cause interference.  
2. This device must accept any interference, including interference that may cause undesired operation of  
the device.  
contains IC ID: 12097A-ADTSTOUCH01  
ADTS Touch  
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une  
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada.  
Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut  
choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne  
dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.  
Le présent émetteur radio (12097A-ADTSTOUCH01) a été approuvé par Industrie Canada pour fonctionner  
avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal. Les types d'antenne  
non inclus dans cette liste, et dont le gain est supérieur au gain maximal indiqué, sont strictement interdits  
pour l'exploitation de l'émetteur.  
antenne dipole: 50 ohms, 2.3dBi gain  
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de  
licence. L'exploitation est autorisée aux deux conditions suivantes:  
1. l'appareil ne doit pas produire de brouillage.  
2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est  
susceptible d'en compromettre le fonctionnement.  
contient IC ID: 12097A-ADTSTOUCH01  
ADTS TOUCH-ER  
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and  
maximum (or lesser) gain approved for the transmitter by Industry Canada.  
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that  
the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful  
communication.  
K0553 Revision C  
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ADTS542F/552F/553F/554F User Manual  
This radio transmitter (12097A-ADTSTOUCH02) has been approved by Industry Canada to operate with the  
antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this  
list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with  
this device.  
dipole antenna: 50 ohms, 2dBi gain  
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the  
following two conditions:  
1. This device may not cause interference.  
2. This device must accept any interference, including interference that may cause undesired operation of  
the device.  
contains IC ID: 12097A-ADTSTOUCH02  
ADTS TOUCH-ER  
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une  
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada.  
Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut  
choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne  
dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.  
Le présent émetteur radio (12097A-ADTSTOUCH02) a été approuvé par Industrie Canada pour fonctionner  
avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal. Les types d'antenne  
non inclus dans cette liste, et dont le gain est supérieur au gain maximal indiqué, sont strictement interdits  
pour l'exploitation de l'émetteur.  
antenne dipole: 50 ohms, 2dBi gain  
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de  
licence. L'exploitation est autorisée aux deux conditions suivantes:  
1. l'appareil ne doit pas produire de brouillage.  
2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est  
susceptible d'en compromettre le fonctionnement.  
contient IC ID: 12097A-ADTSTOUCH02  
MEXICO  
The operation of this equipment is subject to the following two conditions: (1) it is possible that this  
equipment or device may not cause harmful interference, and (2) this equipment or device must accept  
any interference, including interference that may cause undesired operation.  
La operación de este equipo está sujeta a las siguientes dos condiciones: (1) es posible que este equipo o  
dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe aceptar cualquier  
interferencia, incluyendo la que pueda causar su operación no deseada.  
BRAZIL  
This equipment operates in a secondary manner, that is, does not have the right of protection against  
prejudicial interference, even from stations of the same type, and nor can they cause interference to systems  
operating in a primary manner.  
Este equipamento opera em caráter secundário, isto é, não tem direito a proteção contra interferência  
prejudicial, mesmo de estações do mesmo tipo, e não pode causar interferência a sistemas operando em  
caráter primário.  
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CHINA  
ADTS542F: CMIIT - 2015DJ5155  
ADTS552F: CMIIT – 2015DJ6744  
ADTSTOUCH: CMIIT – 2015DJ5598  
KOREA  
해당 무선설비는 운용 중 전파혼신 가능성이 있음  
For safety related information refer to K0554 “Safety and Installation Guide”.  
Table of Contents  
Preliminary Pages  
Introduction  
1
Scope  
1
Safety  
1
Pressure  
1
Toxic Materials  
1
Maintenance  
1
Technical Advice  
Marks and Symbols on the equipment  
Compliance statements  
Table of Contents (this page)  
List of Figures  
1
2
3
7
10  
12  
12  
12  
16  
17  
List of Tables  
Associated documents  
Abbreviations  
Glossary  
Pressure Units and Conversion Factors  
CHAPTER  
PAGE  
1
INTRODUCTION  
1.1  
Description  
1-1  
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Table of Contents  
1.2  
1.3  
1.4  
1.5  
1.6  
ADTS542F  
ADTS552F  
ADTS553F  
ADTS554F  
ADTS Touch  
1-1  
1-3  
1-4  
1-5  
1-5  
2
INSTALLATION  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
Packaging  
2-1  
2-1  
2-2  
2-3  
2-3  
2-4  
Packaging for Storage and Transportation  
Returned Goods Procedure  
Electrical Connection  
Pneumatic Pressure Connections  
Positioning of the ADTS  
3
OPERATION  
Preparation  
Power-up routine  
Dashboard  
Pitot Static  
3.1  
3-1  
3.2  
3-2  
3.3  
3-3  
3.4  
3-4  
3.5  
Rate Timer mode  
Settings  
3-8  
3.6  
3-11  
3-19  
3-24  
3.7  
Tools  
3.8  
Go to ground  
3.9  
Manual Venting of the Aircraft Pitot and Static Systems  
Example Basic Aircraft Test Operation using the ADTS542F  
Engine Pressure Ratio (EPR)  
3-28  
3-30  
3-33  
3-34  
3-41  
3-42  
3.10  
3.11  
3.12  
3.13  
3.14  
Test sequence  
Pt Only or Ps Only Control modes  
Bluetooth®  
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Table of Contents  
3.15  
ADTS TOUCH-ER (Extended Range) Bluetooth®  
3-44  
4
CALIBRATION  
4.1  
4.2  
4.3  
4.4  
4.5  
Introduction  
4-1  
4-1  
4-1  
4-4  
4-5  
PIN codes and PIN protection  
Calibration process  
Calibration description  
Completion of sensor calibration  
5
MAINTENANCE  
5.1  
5.2  
5.3  
5.4  
5.5  
Introduction  
5-1  
5-1  
5-2  
5-2  
5-3  
Maintenance Tasks  
Routine Maintenance  
Battery care and maintenance  
Software updates  
6
TESTING AND FAULT FINDING  
Introduction  
6.1  
6.2  
6.3  
6.4  
6-1  
6-1  
6-1  
6-3  
Standard serviceability test  
ADTS leak check  
Fault codes and error messages  
7
SPECIFICATION  
7.1  
Specification  
7-1  
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List of Figures  
FIG.  
TITLE  
PAGE  
1-1  
1-2  
1-3  
1-4  
1-5  
1-6  
1-7  
ADTS542F General Arrangement  
ADTS552F General Arrangement  
ADTS553F General Arrangement  
ADTS554F General Arrangement  
ADTS Touch  
1-1  
1-3  
1-4  
1-5  
1-6  
1-6  
1-7  
ADTS Touch status indicators  
ADTS Touch controls  
2-1  
ADTS Altitude correction  
2-4  
3-1  
ADTS power-up self test screen  
Dashboard  
3-2  
3-2  
3-3  
3-3  
Measure mode screen  
3-4  
3-4  
Control mode screen  
3-5  
3-5  
Numbered keypad screen  
Nudge increment/decrement factor selection  
Rate timer panel  
3-6  
3-6  
3-7  
3-7  
3-8  
3-8  
Set time panel  
3-9  
3-9  
Measured average rates of change  
Communications main screen  
ADTS manuals screen  
3-10  
3-22  
3-24  
3-25  
3-25  
3-26  
3-26  
3-27  
3-10  
3-11  
3-12  
3-13  
3-14  
3-15  
3-16  
Go to ground main screen  
Set rate panel  
Start go to ground action  
Aircraft going to ground  
Hold status during go to ground ramp  
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List of Figures  
3-17  
3-18  
3-19  
3-20  
3-21  
3-22  
3-23  
3-24  
3-25  
3-26  
3-27  
3-28  
3-29  
3-30  
3-31  
3-32  
3-33  
3-34  
3-35  
3-36  
3-37  
Aircraft at ground  
3-27  
3-28  
3-29  
3-30  
3-30  
3-32  
3-33  
3-34  
3-35  
3-35  
3-36  
3-37  
3-38  
3-39  
3-41  
3-41  
3-42  
3-43  
3-44  
3-45  
3-46  
Go to ground complete  
Manual let-down ADTS542F and ADTS552F  
Manual let-down ADTS553F  
Manual let-down ADTS554F  
EPR Control Screen (Method 1)  
EPR Control Screen (Method 2)  
Test sequence screen  
Test procedure selection screen  
Test sequences menu  
Select test procedure step  
Test sequence screen based on data field input  
Test sequence data fields  
Saving the test sequence file  
ADTS Touch file explorer window  
Example of Pt Only Control Mode  
Pt Only control mode  
Bluetooth® reliable coverage area  
External Bluetooth® antenna  
Bluetooth® antenna extension kit  
Bluetooth® - controller positioning  
5-1  
5-2  
5-3  
Replacing the o-ring  
5-2  
5-4  
5-5  
Software update folders  
Software updates - ADTS Touch  
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List of Tables  
TABLE TITLE  
PAGE  
2-1  
Conditions for shipping and storage  
2-2  
3-1  
3-2  
3-3  
Test set status indications  
Settings menu  
3-2  
3-11  
3-20  
Tools menu  
4-1  
4-2  
4-3  
4-4  
4-5  
Calibration requirements ADTS542F  
Calibration requirements ADTS552F  
Equipment requirements  
4-2  
4-2  
4-3  
4-3  
4-5  
Calibration check points  
Adjustment points  
5-1  
5-2  
Maintenance Chart  
Maintenance tasks  
5-1  
5-1  
Associated documents  
K0563 Service manual.  
K0554 Safety and Installation Guide.  
The following abbreviations may be used in this manual, the abbreviations are the same in the singular and  
plural.  
Abbreviations  
A
Ampere  
abs  
a.c  
Absolute  
Alternating current  
Air Data Test Set  
Aircraft Maintenance Manual  
ADTS  
AMM  
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Abbreviations  
Alt  
Altitude  
Alt1  
Alt2  
ARINC  
ASI  
ATE  
CAS  
COSHH  
cm  
d.c  
Altitude static channel 1  
Altitude static channel 2  
Air Radio Incorporated  
Airspeed indicator  
Automatic Test Equipment  
Calibrated airspeed  
Control of Substances Hazardous to Health Regulations  
Centimetre  
Direct current  
Def  
e.g.  
EPR  
etc.  
°C  
Define  
For example  
Engine Pressure Ratio  
And so on  
Degrees Celsius  
°F  
Degrees Fahrenheit  
Fig.  
ft  
Figure  
Foot  
g
Gauge  
h
Hour  
HBC  
Hg  
High breaking capacity  
Mercury  
hm  
Hz  
Hecto metre  
Hertz  
IAS  
i.e.  
Indicated airspeed  
That is  
IEC  
in  
International Electrotechnical Commission  
Inch  
inHg  
Inches of mercury  
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ADTS542F/552F/553F/554F User Manual  
Abbreviations  
kg  
Kilogram  
km  
Kilometre  
kts  
Knots  
LCD  
m
Liquid crystal display  
Metre  
mA  
Mach  
max  
mbar  
min  
mm  
mph  
mV  
No.  
PIN  
Ps  
Milliampere  
Speed ratio to the speed of sound  
Maximum  
Millibar  
Minute or minimum  
Millimetre  
Miles per hour  
Millivolts  
Number  
Personal identification number  
Static pressure  
Ps1  
Ps2  
psi  
Static pressure channel 1  
Static pressure channel 2  
Pounds per square inch  
Personal computer  
Total pressure (Pitot)  
Pitot pressure channel 1  
Pitot pressure channel 2  
Differential pressure Pt1-Ps1  
Local atmospheric pressure  
Barometric pressure at sea level  
Reference  
PC  
Pt  
Pt1  
Pt2  
Qc  
QFE  
QNH  
REF  
RGA  
RMS  
Return Goods Authorization (Druck procedure)  
Root mean square  
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Abbreviations  
ROC  
RS232  
Rt  
Rate of climb  
Serial communications protocol  
Rate  
Rt CAS  
RTC  
SCPI  
SST  
ST  
Rate of CAS  
Real time clock  
Standard commands for programmable instruments  
Standard Serviceability Test  
Stainless steel  
True Airspeed  
Volts  
TAS  
V
VA  
Volt Ampere  
Positive  
+ve  
-ve  
Negative  
K0553 Revision C  
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ADTS542F/552F/553F/554F User Manual  
The terminology used in this manual is specific and individual interpretation must not be introduced. The  
terms are defined as follows:  
Glossary  
Adjust  
To bring to a more satisfactory state; to manipulate controls, levers, linkages, etc. to return equip-  
ment from an out-of-tolerance condition to an in-tolerance condition.  
Align  
To bring into line; to line up; to bring into precise adjustment, correct relative position or coinci-  
dence.  
Assemble  
Calibrate  
To fit and secure together the several parts of; to make or form by combining parts.  
To determine accuracy, deviation or variation by special measurement or by comparison with a  
standard.  
Check  
Make a comparison of a measure of time, pressure, temperature, resistance, dimension or other  
quality with a known figure for that measurement.  
Disconnect  
Dismantle  
Examine  
Fit  
To detach the connection between; to separate keyed or matched equipment parts.  
To take apart to the level of the next smaller unit or down to all removable parts.  
To perform a critical visual observation or check for specific conditions; to test the condition of.  
Correctly attach one item to another.  
Inspect  
Install  
Review the work carried out by Specialists to ensure it has been performed satisfactorily.  
To perform operations necessary to properly fit an equipment unit into the next larger assembly or  
system.  
Maintain  
Operate  
To hold or keep in any particular state or condition especially in a state of efficiency or validity.  
Make sure that an item or system functions correctly as far as possible without the use of test  
equipment or reference to measurement.  
Readjust  
Reconnect  
Refit  
To adjust again; to move back to a specified condition; to bring back to an in-tolerance condition.  
To rejoin or refasten that which has been separated.  
Fit an item which has previously been removed.  
Remove  
To perform operations necessary to take an equipment unit out of the next larger assembly or sys-  
tem. To take off or eliminate. To take or move away.  
Repair  
To restore damaged, worn out or malfunctioning equipment to a serviceable, usable or operable  
condition.  
Replace  
Reset  
Remove an item and fit a new or a serviced item.  
To put back into a desired position, adjustment or condition.  
Service  
Test  
To perform such operations as cleaning, lubricating and replenishing to prepare for use.  
Ascertain by using the appropriate test equipment that a component or system functions correctly.  
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Pressure units and conversion factors  
Pressure units  
mbar  
Factor (hPa)  
1.0  
Pressure units  
Factor (hPa)  
0.978903642  
97.8903642  
0.0980665  
cmH O @ 20°C  
2
mH O @ 20°C  
bar  
1000.0  
0.01  
2
2
2
Pa (N/m )  
kg/m  
2
hPa  
1.0  
980.665  
kg/cm  
kPa  
10.0  
torr  
atm  
psi  
1.333223684  
1013.25  
MPa  
10000.0  
mmHg @ 0°C  
cmHg @ 0°C  
mHg @ 0°C  
inHg @ 0°C  
1.333223874  
13.33223874  
1333.223874  
33.86388640341  
0.0980665  
68.94757293  
0.4788025898  
2.4908891  
2.486413  
2
lb/ft  
inH O @ 4°C  
2
inH O @ 20°C  
2
mmH O @ 4°C  
inH O @ 60°F  
2.487641558  
2
2
cmH O @ 4°C  
ftH O @ 4°C  
0.980665  
98.0665  
29.8906692  
29.836983  
2
2
mH O @ 4°C  
ftH O @ 20°C  
2
2
mmH O @ 20°C  
ftH O @ 60°F  
0.097890364  
29.8516987  
2
2
Unit Conversion  
To convert FROM pressure Value 1 in pressure UNITS 1 TO pressure Value 2 in pressure UNITS 2:  
Calculate as follows:  
Value 2 = Value 1 x Factor 1 ÷ Factor 2  
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CHAPTER 1 INTRODUCTION  
1.1 Description  
The GE family of Air Data Test Sets (ADTS) provide accurate air data to test two, three and four-  
channel systems.  
The manufacturer has designed this equipment to be safe when operated using the procedures  
detailed in this user manual.  
The required aircraft instrument test values can be entered in either aeronautical or pressure  
units. The ADTS will then automatically generate the correct pressure aims for all required  
channels.  
The aircraft air data computer system receives these parameters and calculates altitude, airspeed  
and angle of attack (if applicable).  
1.2 ADTS542F  
1
3
2
4
5
6
7
8
9
Figure 1-1 ADTS542F General Arrangement  
Key to Figure 1-1:  
1
2
3
Pitot (Pt) pressure port  
Static (Ps) pressure port  
ADTS Touch docking connector  
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Test set status indications (see below):  
a: Power on and self test  
b: Battery pack status (if fitted)  
c: Bluetooth® wireless technology connection status  
d: Aircraft status  
5
6
7
8
9
ADTS Touch umbilical cable connector  
External functional earth/ground terminal  
Power On/Standby switch  
Power cable connector  
Fuses  
4a 4b 4c 4d  
Test set status indications:  
4a  
Power on and self test:  
- Off (power Off)  
- Standby (Yellow)  
- Self test in progress (Green (flashing))  
- Pass/Ready (Green)  
- Fault (Red)  
4b  
4c  
Battery pack status (if fitted):  
- For LED indications, see section 5.4 “ADTS5xxF battery pack”  
Bluetooth® wireless technology connection status:  
- Wireless connection present (Blue)  
- Looking for wireless connection (Flashing blue)  
- Wired connection present (Wireless off)  
4d  
Aircraft status:  
- When the ADTS is controlling the aircraft and it is “off ground”, the LED  
will be Yellow  
- When the ADTS is controlling the aircraft to “going to ground”, the LED  
will flash yellow  
- When the ADTS has made the aircraft “safe at ground”, the LED is green  
- In standby-mode, this LED will be off.  
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1.3 ADTS552F  
10  
Figure 1-2 ADTS552F General Arrangement  
The ADTS552F incorporates all the features of the ADTS542F but with an optional communications  
board, which is located below the cover (10).  
10  
Cover for, optional, communications board,  
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1.4 ADTS553F  
11  
Figure 1-3 ADTS553F General Arrangement  
The ADTS553F incorporates all the features of the ADTS552F but with an additional Static (Ps2) port  
(11), making it a three channel test set.  
11  
Static (Ps2) port  
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1.5 ADTS554F  
12  
Figure 1-4 ADTS554F General Arrangement  
The ADTS554F incorporates all the features of the ADTS553F but with an additional Pitot (Pt2) port  
(12), making it a four channel test set.  
12  
Pitot (Pt2) port  
1.6 ADTS Touch  
The ADTS Touch is used to control all required functions. The ADTS Touch can be positioned (docked)  
®
on the ADTS or used as a hand held mobile unit via an umbilical cable or using Bluetooth wireless  
technology. This allows a person to complete the entire test program remotely while conveniently  
seated in the aircraft.  
The ADTS Touch will have power applied when positioned on a powered-on ADTS, or using an  
umbilical cable connected to a powered-on ADTS, or can be battery powered.  
The ADTS Touch is a touch screen device which features a “swipe–action” (up/down/left/right)  
touch screen user interface with colour graphics and menus.  
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B
Figure 1-5 ADTS Touch  
The top edge of the ADTS Touch screen features a set of status indicators (A). The status indicator  
icons show:  
Status indications (from left to right):  
Battery icon  
Battery charge level indication is only visible when a battery is fitted to  
the ADTS Touch  
Visible when the ADTS Touch is connected wirelessly, the CAN link icon is  
not then visible  
Bluetooth® antenna icon  
CAN link icon  
Visible when the ADTS Touch is connected using a wired connection, the  
Bluetooth® antenna icon is not then visible  
Time  
System time  
Figure 1-6 ADTS Touch status indicators  
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The ADTS Touch features a set of controls along the bottom edge of the screen (B), these controls  
only become visible after selecting a main menu item on the “Dashboard”:  
1
2
3
4
5
6
7
Figure 1-7 ADTS Touch controls  
1. Back/Return: takes you back to the previous selection and will continue taking you back, one  
step at a time, until you reach the “Dashboard” again.  
2. Home: Returns you directly to the “Dashboard”.  
3. Help: Displays help topics related to the currently selected main menu item.  
4. Aircraft Status: displays the aircraft status screen which gives information about whether the  
aircraft is ramping, stable at set point, going to ground or actually at ground pressure. Options  
available in this screen are: Go to Ground, Change rate of descent to ground and Hold (will allow a  
temporary pressure HOLD state on all channels during a controlled ramp to either set-point or  
ground). See section 3.8 for a detailed description.  
5. Measure/Control mode: toggle function. The blue indicator identifies the currently selected  
function:  
- Indicator left: Measure mode.  
- Indicator right: Control mode.  
6. Pressure/Aeronautical units selection: toggle function. The blue indicator identifies the currently  
selected function:  
- Indicator left: Pressure units.  
- Indicator right: Aeronautical units.  
7. Pressure mode selection: toggle function. The blue indicator identifies the currently selected  
function:  
With pressure units selected:  
- Indicator left: Ps (static) and Pt (pitot) (absolute pressures).  
- Indicator right: Ps (static) and Qc.  
With Aeronautical units selected:  
- Indicator left: ALT (altitude) and CAS (calibrated air speed).  
- Indicator right: ALT (altitude) and Mach speeds.  
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CHAPTER 2 INSTALLATION  
2.1 Packaging  
On receipt of the ADTS check the contents of the packaging against the following lists:  
Standard  
• ADTS5xxF  
• ADTS Touch  
• Mains cable  
• K0554, Installation and Safety Guide.  
Options  
The following options are included, but not limited to (for a complete list of available options, refer  
to product data sheet: ADTS542F, 920-648x).  
• ADTS Touch batteries  
• ADTS Touch extension cable  
• Power supply adaptor and cables  
• Threaded adaptors  
• Accessories bag  
• Hoses  
• Front panel labels  
• Backpack (ADTS542F only)  
• ADTS Touch carry case  
• Second slave ADTS Touch (not for ADTS542F).  
Special Request  
Please keep the special packing boxes so that the ADTS can be safely shipped for calibration,  
repair or storage.  
2.2 Packing for Storage or Transportation  
To store the ADTS or to return it for calibration or repair carry out the following procedures:  
• The ADTS should be at zero/ambient pressure. Disconnect the hose assemblies and stow in the  
accessory bag.  
• Switch OFF and disconnect from the electrical power supply.  
• Close and latch the lid to the ADTS.  
• The power supply cable should be placed in the original packing material.  
• Place the ADTS in the original special packing box or appropriate transport container.  
• Mark carton “FRAGILE” on all sides, top, and bottom of the container.  
• The battery must be removed from the ADTS Touch during transportation.  
• To return the ADTS for calibration or repair complete the return goods procedure as detailed in 2.3.  
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Environment  
Note: Items in storage are defined as being non-operational.  
The following conditions apply for both shipping and storage:  
Store in a cool dry place  
-
Storage Temperature Range  
ADTS542F: -20°C to 70°C (-4°F to 158°F)  
ADTS552F )  
ADTS553F ) -30°C to 70°C (-22°F to 158°F)  
ADTS554F )  
ADTS Touch battery: 5°C to 21°C (41°F to 98.8°F)  
Up to 50,000 feet (15,000 metres)  
Storage Altitude  
Table 2-1 Conditions for shipping and storage  
If the ADTS becomes exposed to moisture or very high humidity, dry as soon as possible and  
temporarily store in a low humidity area.  
Note: It is important that the customer be sure the ADTS is in compliance with the OEM re-certification.  
2.3 Returned Goods Procedure  
Should the ADTS require calibration or become unserviceable, it can be returned to the GE  
approved service department.  
Please contact the GE Service Department, either by 'phone, fax or E-mail, to obtain a Returned  
Goods Authorization (RGA) number or (Return Material Authorization [RMA] in USA), providing the  
following information:  
Product (i.e. ADTS5xxF)  
Serial number  
Details of defect/work to be undertaken  
Calibration traceability requirements  
Operating conditions  
Safety Precautions  
You must also inform the return establishment if the product has been in contact with anything  
hazardous or toxic and, the relevant COSHH (MSDS in USA) references and precautions to be taken  
when handling.  
Important notice  
Service or calibration by unauthorized sources will affect the warranty and may not guarantee  
further performance.  
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2.4 Electrical Connection  
WARNING  
VOLTAGES IN EXCESS OF 30 VOLTS (RMS) AC OR 50 VOLTS DC, IN CERTAIN  
CIRCUMSTANCES, CAN BE LETHAL. CARE MUST BE TAKEN WHEN WORKING ON  
LIVE, EXPOSED CONDUCTORS  
Power Supply  
110/230 VAC, 50/60Hz  
Single phase  
200 VA MAX  
115 VAC, 400Hz  
Power Supply Connection  
The unit must be connected to the correct electrical power supply as stated, adjacent to the power  
connector.  
A qualified technician (see page i) must carry out the following procedure.  
A power isolation device must be accessible at all times. This device can be considered as  
disconnecting the ADTS power cable or building wall isolation switch. The ADTS front panel switch  
is not classed as a power isolator.  
CAUTIONS  
THE SUPPLY MUST PROVIDE CONNECTION TO A PROTECTIVE GROUND TERMINAL. THE UNIT MUST,  
AT ALL TIMES, BE CONNECTED TO THE SUPPLY EARTH (GROUND).  
THE POWER SUPPLY CABLE AND CONNECTOR MUST BE CORRECTLY RATED FOR THE POWER SUPPLY.  
European  
Colour  
US color  
Function  
Brown  
Blue  
Black  
White  
Green  
Live  
Neutral  
Green/Yellow  
Protective Earth  
(Ground)  
Make sure that the power supply is off before connecting the power cable to the ADTS.  
Fuses  
The two fuses, located in the holders and mounted on the front panel, protect the unit. The fuses  
are connected in the live and neutral supply circuit and are rated at:  
• T5AH 250V  
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External functional earth/ground terminal  
An external earth/ground connection stud is available as functional earth on the front panel  
providing a connection point for other equipment to be connected to the same earth/ground  
connection as the test set (This is not a protective earth/ground connection).  
2.5 Pneumatic Pressure Connections  
When not in use, blanking caps must be fitted to Ps/Pt ports.  
Note: When carrying out a leak test, a leak of the blanking cap affects the performance of the ADTS.  
The ADTS uses the following AN pneumatic connectors:  
• AN-3, 37° flare (option)  
• AN-4, 37° flare  
• AN-6, 37° flare (option).  
2.6 Positioning the ADTS  
CAUTION  
TO OPERATE, PLACE THE ADTS ON A HORIZONTAL SURFACE WITH THE FRONT PANEL UPPERMOST,  
THIS ALLOWS THE WATER IN THE WATER FILTER TO VENT. WATER CAN CONTAMINATE THE ADTS  
MANIFOLD AND AFFECT ADTS PERFORMANCE.  
Note: In control mode, the water drain, located near the cooling vent, produces a flow of air and some  
water. The amount of water depends on the humidity and the operating time in control mode.  
It is important that the position of the ADTS in relation to the aircraft altitude sensors is known. An  
altitude correction must be made to allow for the difference in height between the ADTS reference  
level and the reference level of the aircraft's altitude sensors (refer to the Aircraft Maintenance  
Manual for this information).  
Enter the altitude correction value, see section 3.6, Settings, ADTS settings menu.  
CAUTION  
OBSERVE THE APPROPRIATE SAFETY INSTRUCTIONS AND TESTING PROCEDURES DETAILED IN THE  
AIRCRAFT MAINTENANCE MANUALS AND COMPONENT MAINTENANCE MANUALS.  
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inst  
reference level  
STATIC  
AIR DATA  
COMPUTER  
PITOT  
altitude  
correction  
value  
reference  
level  
Figure 2-1 ADTS Altitude correction  
Note: Enter a positive correction factor when ADTS is below the aircraft reference. Enter a negative  
correction factor when ADTS is above the aircraft reference.  
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CHAPTER 3 OPERATION  
3.1 Preparation  
WARNING  
OBSERVE SAFETY PRECAUTIONS STATED IN LOCAL ORDERS AND THE AIRCRAFT OR  
EQUIPMENT SERVICING PROCEDURES.  
CAUTION  
It is the responsibility of the user to make sure that the pneumatic control range  
limits are set below the maximum operating limits of the equipment under test.  
Make sure the electrical and pneumatic connectors, electrical cables and pipes and positioning of the  
ADTS comply with the instructions and requirements in Section 2 Installation.  
CAUTION  
DO NOT USE SHARP OBJECTS ON THE TOUCH SCREEN. SHARP OBJECTS WILL PERMANENTLY  
DAMAGE THE TOUCH SCREEN, IT CANNOT BE REPAIRED.  
Carry out the following before use:  
1. If necessary, carry out the maintenance tasks detailed in Section 5.  
2. Make sure the power at the wall connection point is switched OFF. Connect the ADTS to the  
electrical power supply at the wall connection point.  
MAKE SURE THAT THE SUPPLY INCLUDES A CONNECTION TO A PROTECTIVE EARTH.  
Note: Make sure that the power supply switch can be accessed at all times.  
3. Inspect the pneumatic hoses for damage, ingress of dirt and moisture. Make sure the aircraft  
adaptors are serviceable.  
4. Make sure the air vents do not become obstructed.  
5. Connect the required hoses to the ADTS that are necessary for the test procedures to be carried  
out.  
6. Fit the necessary adaptors for aircraft testing to the hoses.  
Note: When connected, take care not to kink or stand on the hoses.  
7. Fit blanks to all the adaptor test points.  
8. Carry out the leak test procedure detailed in Section 6.3.  
9. If necessary carry out an altitude correction, see Figure 2-1 also.  
Note: Read the whole procedure before starting the test process on an aircraft or component.  
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3.2 Power-up routine  
Make sure the power at the wall connection point is switched ON.  
Wired connection  
1. Either; position the ADTS Touch on the docking connector of the ADTS, or connect the ADTS  
Touch to the ADTS using the umbilical cable connector.  
2. Set the On/Standby Switch on the front of the ADTS to ON.  
The test set performs a self test, resulting in a test set status indication “Pass” or “Fault”.  
Test set status indications:  
No LEDs  
OFF  
Yellow  
Standby  
Green (flashing)  
Green/Red  
Self test in progress  
Pass/Fault  
Table 3-1 Test set status indications  
If the self test fails (red “Fault” indication), or for any other reason the test set is considered to be  
unserviceable, contact GE and return the test set to the GE or GE approved service centre.  
During the “Power-up” routine, the following screen is displayed showing a “Progress” bar at the  
bottom of the screen:  
Figure 3-1 ADTS power-up self test screen  
The “ADTS power-up self test” screen is displayed for a short time followed by the “Dashboard”.  
Wireless connection  
To establish a wireless connection:  
1. Ensure that the ADTS Touch is not positioned on the docking connector of the ADTS, or  
connected to the ADTS using the umbilical cable connector.  
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2. Switch the ADTS Touch ON.  
3. Select “Tools” on the “Dashboard”.  
4. From the “Tools” menu, select “Bluetooth”. The “Bluetooth” sub-menu opens.  
5. Select “List of devices”. The “Select device” panel opens showing a list of serial numbers for  
devices for a connection attempt.  
6. If the serial number of the ADTS for connection is not in the list, then close the list by touching  
the “cross” icon. Select “New scan for devices”. Wait while a search for active devices is  
performed.  
7. Select the required serial number device from the list and touch the “tick” icon. Wait while  
connection is established.  
If the link has been successful the “Bluetooth® antenna icon” icon is now displayed in the status  
indicator area of the ADTS Touch, see also section 1.6 “ADTS Touch”.  
Wireless operation of the ADTS is now available. See also, section 3.14 “Bluetooth®”.  
3.3 Dashboard  
The “Dashboard” shows the top-level menu items, which are:  
• PITOT STATIC  
• EPR  
• SETTINGS  
• TOOLS  
• TEST SEQUENCE  
1
2
4
3
5
Figure 3-2 Dashboard  
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3
5
Pitot static  
Settings  
2
4
-
EPR (see section 3.11)  
Tools  
-
Test sequence (swipe to view) (see  
section 3 13)  
3.4 Pitot Static  
When “Pitot Static” is selected on the dashboard, the resulting screen will clearly display whether  
the ADTS is currently controlling the pressures at the Ps and Pt ports (CONTROL) or passively  
measuring the pressures at the Ps and Pt ports (MEASURE).  
The condition immediately after power up is always MEASURE, so as to protect any connected  
systems.  
To switch between the two modes, touch the related icon (1) at the bottom of the screen. See also  
section 1.6 “ADTS Touch controls”.  
Measure mode  
The MEASURE mode screen displays real time Pitot Static parameter measurements (2) based on the  
current pressures and rates of change (3) of pressures present at the Ps and Pt ports of the ADTS or  
any connected aircraft systems. All ADTS pumping and pressure control functions are inactive.  
This baseline Pitot Static information screen will typically be used to passively monitor the pressure  
and leak rate status of the connected aircraft.  
2
3
1
4
Figure 3-3 Measure mode screen  
You can switch the system between aero units and pressure units using the toggle control (4).  
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Control mode  
When CONTROL mode is selected at icon (1), the ADTS pumps and pressure control functions are  
activated but will not cause any change in the current pressures unless requested by the  
operator.  
The CONTROL mode screen also displays real time Pitot Static parameter measurements based on  
the current pressures and rates of change of pressures present at the Ps and Pt ports. It also has a  
'Aim' field for each parameter to allow you to enter new target values for the controller of the ADTS  
or any connected aircraft systems.  
This screen may be configured at icon (2) to accept and present data in either aeronautical or  
pressure units.  
The Pt channel display may be configured at icon (3) to present either CAS or Mach (when in Aero  
units) and either Qc or Pt (when in Pressure units).  
A progress bar (4) indicates rate and percentage completion towards the requested new target  
aim.  
The effort meter (5) can swing left or right according to whether control of the requested pressure  
for that channel is requiring predominantly vacuum (left) or pressure (right), e.g, an excessive left  
swing when at an altitude set-point might give early indication of a leak to atmosphere  
(continuous drain on vacuum pump resource).  
This baseline Pitot Static control screen will typically be used to actively exercise the connected  
aircraft or system over the required Ps/Pt parameter test range.  
5
4
1
2
3
Figure 3-4 Control mode screen  
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ALT, CAS and Mach  
The following controls are available when “Aeronautical” units are selected:  
5
6
1
2
4
3
Figure 3-5 Numbered keypad screen  
ALT  
Displays the currently selected altitude. To change the altitude value:  
1. Touch the “Aim” value (1) to highlight it.  
2. Use the numbered keypad to input the new value.  
3. If required, change the rate of change value by touching the “Rate Aim” value (2) and input the  
new value, or use the nudge up/down controls (5/6) to increment/decrement the value by a pre-  
defined factor.  
4. To change the nudge increment/decrement factor:  
- Touch one of the up/down controls (5/6) for 2 seconds. The increment/decrement factor panel  
opens.  
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Figure 3-6 Nudge increment/decrement factor selection  
- Select the new factor (7) from the list. The new factor is selected and the increment/decrement  
factor panel closes.  
- Touching the up/down controls (5/6) will increment/decrement the “Rate Aim” value by the  
new factor.  
5. Touch the “Tick” icon (3), the new value appears in the “Aim” field. The altitude value changes to  
the new value, at the rate of change value, and provided that the new value is within acceptable  
limits the text will turn green.  
6. Touching the “Cross” icon (4), cancels the action and closes the keypad.  
CAS  
Displays the currently selected calibrated air speed. To change the value, repeat the same  
procedure as above for ALT.  
Mach  
Displays the current selection. To change the value, repeat the same procedure as above for ALT.  
Ps, Pt and Qc  
The following controls are available when “Pressure” units are selected:  
Ps  
Displays the currently selected pressure. To change the pressure value:  
1. Touch the “Aim” value (1) to highlight it, a numbered keypad is displayed.  
2. Use the numbered keypad to input the new value.  
3. If required, change the rate of change value by touching the “Rate Aim” value (2) and input the  
new value, or use the nudge up/down controls (5/6) to increment/decrement the value by a pre-  
defined factor.  
4. Touch the “Tick” icon (3), the new value appears in the “Aim” field. The Ps value changes to the  
new value, at the rate of change value, and provided that the new value is within acceptable  
limits the Ps text will turn green.  
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5. Touching the “Cross” icon (4), cancels the action and closes the keypad.  
Pt  
Displays the currently selected pressure. To change the value, repeat the same procedure as  
above for Ps.  
Qc  
Displays the currently selected pressure. To change the value, repeat the same procedure as  
above for Ps.  
3.5 Rate Timer mode  
To access this screen touch and drag the whole MEASURE or CONTROL screen across to the left  
The Rate Timer starts an internal timer for a pre-defined set of times. On the completion of the  
time period, the display shows the average rate of change over the time period.  
The pre-defined time period has an associated wait period that allows pressures to settle before  
the timing starts. The wait period counts down to zero before the time period starts.  
6
7
1
5
Figure 3-7 Rate timer panel  
To set the “WAIT” period:  
1. On the “Rate Timer” panel, touch “WAIT” (1) to highlight it, the “Set Time” panel opens.  
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Figure 3-8 Set time panel  
2. On the “Set Time” panel, select the required “hours”, “minutes” and “seconds” (2).  
3. Touch the “Tick” icon (3), the Set Time panel closes and the new time is displayed in the Rate  
Timer panel.  
4. Touching the “Cross” icon (4), cancels the action and closes the Set Time panel.  
To set the “TEST” period:  
1. On the “Rate Timer” panel, touch “TEST” (5) to highlight it, the “Set Time” panel opens.  
2. On the Set Time panel, select the required “hours”, “minutes” and “seconds”.  
3. Touch the “Tick” icon, the Set Time panel closes and the new time is displayed in the Rate Timer  
panel.  
4. Touching the “Cross” icon, cancels the action and closes the Set Time panel.  
To start and stop the Rate Timer:  
1. To start the timer, touch the “play” icon (6). The timer starts counting down, the elapsed time  
(percentage) indicator turns blue and the word “Wait” is displayed underneath the percentage  
indication.  
2. When the timer reaches 100%, it starts to count down again and the word “Test” is displayed  
underneath the percentage indication. When the timer reaches 100%, it stops, the elapsed time  
indicator remains blue and the word “End” is displayed. At the end of the timed testing period  
the measured average rates of change are displayed for each channel with the capital letter "T"  
as a suffix.  
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Figure 3-9 Measured average rates of change  
3. To stop or reset the timer, touch the “cross” icon (7). The timer is reset, the elapsed time indicator  
is white and the word “Idle” is displayed.  
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3.6 Settings  
On the “Dashboard” screen, select “Settings”. The Settings screen opens showing the available  
controls.  
Note: The ADTS contains some PIN protected menus. A list of factory default PIN codes can be found in  
section 4, “PIN codes and PIN protection”.  
The following table is a settings menu overview:  
Settings menu overview  
Intensity  
Theme  
Volume  
ADTS settings  
Channel mode  
Auto leak recovery  
Pressure units  
Aero units  
Altitude correction  
Airspeed mode  
ADTS limits  
- View limits  
- Select limits  
- Edit limits  
- Create new limits  
- Delete limits  
Auto zero  
Change supervisor PIN  
Regional settings  
Date  
- Date format  
Time  
- Time format  
Language  
Area of use  
Screen rotation  
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Touch screen test  
Table 3-2 Settings menu  
Intensity  
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Adjusts the brightness of the screen displays.  
Theme  
Changes the screen view from a dark background with white text to a light background with black  
text for bright sunlight use.  
Volume  
Adjusts the volume of the audible indications.  
ADTS settings  
Opens a sub-menu containing eight items:  
Auto leak recovery: auto leak recovery automatically regains control if the leak rate becomes too  
high for any of the control channels. Auto leak operates at pre-set rates of 3000ft/min and  
600knots/min.  
To turn auto leak recovery On and Off:  
1. Touch the auto leak recovery panel inside the white box. When auto leak recovery is On, a  
“tick” appears inside the box. If no “tick” is visible, auto leak recovery is Off.  
Pressure units: shows the current selection. To change the pressure units setting:  
1. Touch the pressure units panel.  
2. Touch the required units radio button. The units radio button panel closes and the pressure  
units panel shows the selected units.  
Aero units: shows the current selection. To change the aero units setting:  
1. Touch the aero units panel.  
2. Touch the required aero units radio button. The aero units radio button panel closes and the  
aero units panel shows the selected units.  
Altitude correction: shows the current selection. To change the altitude correction setting:  
1. Touch the altitude correction panel, a numbered keypad is displayed.  
Note: Enter a positive correction factor when ADTS is below the aircraft reference. Enter a  
negative correction factor when ADTS is above the aircraft reference.  
2. On the numbered keypad, select the required altitude correction setting.  
3. Touch the “Tick” icon, the numbered keypad closes and the new altitude correction setting is  
displayed in the altitude correction setting panel.  
4. Touching the “Cross” icon, cancels the action and closes the numbered keypad.  
Airspeed mode: shows the current selection. To change the setting:  
1. Touch the airspeed mode panel.  
2. Touch the required units radio button:  
- CAS: selects the Calculated Airspeed mode and closes the airspeed mode panel.  
- TAS: opens the True Airspeed sub-panel containing two additional items:  
- True Airspeed Temperature: shows the currently selected temperature. To change the  
selected temperature setting: touch the True Airspeed Temperature panel. A numbered  
keypad is displayed. Use the keypad to enter the new temperature and touch the “tick” icon.  
The new temperature is displayed in the True Airspeed Temperature panel and the keypad  
closes.  
- Temperature units: shows the currently selected temperature units. To change the selected  
temperature units: touch the Temperature units panel.  
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- Touch the required units radio button. The Temperature units panel closes and the new  
Temperature units are displayed in the Temperature units panel.  
ADTS limits: opens the “ADTS limits” sub-menu. The “ADTS limits” sub-menu contains the following  
items:  
- View limits  
- Select limits  
- Edit limits  
- Create new limits  
- Delete limits.  
View limits  
- ADTS Max (ADTS552F/553F/554F):  
Minimum altitude  
Maximum altitude  
-3000 feet  
60000 feet (65000 feet  
optional *)  
Minimum CAS  
Maximum CAS  
Minimum Ps  
Maximum Ps  
Minimum Qc  
Maximum Qc  
Maximum Mach  
Maximum ROC  
Maximum RtPs  
Maximum RtQc  
Alt correction  
ARINC  
0.0 knots  
650.0 knots  
35.00 mbar  
1400.00 mbar  
-1365.00 mbar  
1962.00 mbar  
2.700 Mach  
20000 feet/min  
1000 mbar/min  
1000 mbar/min  
±100.0 feet  
Off  
* Extended Altitude (EALT) option will be made available through pin number.  
- Max Aero (ADTS542):  
Minimum altitude  
Maximum altitude  
Minimum CAS  
Maximum CAS  
Minimum Ps  
-3000 feet  
55000 feet  
0.0 knots  
650.0 knots  
91.20 mbar  
1130.00 mbar  
Maximum Ps  
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Minimum Qc  
Maximum Qc  
Maximum Mach  
Maximum ROC  
Maximum RtPs  
Maximum RtQc  
Alt correction  
ARINC  
-1000.00 mbar  
867.00 mbar  
3.000 Mach  
6000 feet/min  
500.00 mbar/min  
500.00 mbar/min  
±100.0 feet  
Off  
- Max Aero (ADTS552F/553F/554F):  
Minimum altitude  
Maximum altitude  
-3000 feet  
60000 feet (65000 feet  
optional *)  
Minimum CAS  
Maximum CAS  
Minimum Ps  
0.0 knots  
650.0 knots  
71.72 mbar  
(56.40 mbar optional *)  
Maximum Ps  
Minimum Qc  
Maximum Qc  
Maximum Mach  
Maximum ROC  
Maximum RtPs  
Maximum RtQc  
Alt correction  
ARINC  
1130.00 mbar  
-1000.00 mbar  
867.00 mbar  
3.000 Mach  
6000 feet/min  
500.00 mbar/min  
500.00 mbar/min  
±100.0 feet  
Off  
* Extended Altitude (EALT) option will be made available through pin number.  
- Fixed wing:  
Minimum altitude  
Maximum altitude  
Minimum CAS  
-1000 feet  
50000 feet  
0.0 knots  
Maximum CAS  
450.0 knots  
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Minimum Ps  
Maximum Ps  
Minimum Qc  
Maximum Qc  
Maximum Mach  
Maximum ROC  
Maximum RtPs  
Maximum RtQc  
Alt correction  
ARINC  
115.97 mbar  
1051.00 mbar  
0.00 mbar  
368.01 mbar  
0.900 Mach  
6000 feet/min  
109.85 mbar/min  
109.85 mbar/min  
±100.0 feet  
Off  
- Helicopter:  
Minimum altitude  
Maximum altitude  
Minimum CAS  
Maximum CAS  
Minimum Ps  
-1000 feet  
35000 feet  
0.0 knots  
250.0 knots  
230.00 mbar  
1051.00 mbar  
0.00 mbar  
Maximum Ps  
Minimum Qc  
Maximum Qc  
Maximum Mach  
Maximum ROC  
Maximum RtPs  
Maximum RtQc  
Alt correction  
ARINC  
110.00 mbar  
0.700 Mach  
3000 feet/min  
109.85 mbar/min  
109.85 mbar/min  
±100.0 feet  
Off  
- EPR Limits  
Min Inlet  
Max Inlet  
Min Outlet  
60 mbar  
1355 mbar  
60 mbar  
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Max Outlet  
2200 mbar  
Min (Ratio)  
0.1  
Max (Ratio)  
10.0  
Min Inlet Rate  
Max Inlet Rate  
Min EPR Rate  
Max EPR Rate  
0
1000 mbar/min  
0
60 mbar/min  
Select limits  
Shows the current setting. To change the select limits setting:  
1. Touch the select limits panel.  
2. Touch the required select limits radio button. The select limits radio button panel closes and  
the select limits panel shows the new selection.  
Edit limits  
When selected, this function requires you to enter a PIN code. An existing limit set can be edited using  
this function. To edit limits:  
1. Touch “Edit limits”, a numbered keypad is displayed.  
2. Enter your PIN number and touch the “tick” icon. The Edit limits panel opens. Touching the “cross”  
icon closes the numbered keypad without making any changes.  
3. On the Edit limits panel, touch the panel (User 1 to 5) for the limits to be edited. The current limits  
are displayed.  
4. Touch a limit, a numbered keypad opens allowing you to edit the current limit.  
5. Edit the limit and touch the “tick” icon. The parameter is changed and the keypad closes.  
Touching the “cross” icon closes the numbered keypad without making any changes.  
Create new limits  
When selected, this function requires you to enter a PIN code. A new limits set can be created  
following the deletion of an existing limits set or by overwriting existing limits. To create new limits:  
1. Touch “Create new limits”, a numbered keypad is displayed.  
2. Enter your PIN number and touch the “tick” icon. The Create new limits panel opens. Touching  
the “cross” icon closes the numbered keypad without making any changes.  
3. On the Create new limits panel, touch the panel for the custom limits name to be created or  
edited (User 1 to 5). The Custom limits name panel and keyboard opens.  
4. Touch the “tick” icon. The message “Name Already Exists. Do you want to Overwrite?” is  
displayed.  
5. Touch “Yes”. The previously selected User 1 to 5 limits panel opens. Touching “No” returns you  
to the Custom limits name panel.  
6. Touching the desired item in the list opens a numbered keypad.  
7. Input the new numbers and touch the “tick” icon. The numbered keypad closes and the new  
parameter is shown for the selected item. Touching the “cross” icon closes the numbered  
keypad without making any changes.  
8. If required, repeat this procedure for other parameters.  
9. Touch the Back/Return button to return to the ADTS Settings menu.  
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Delete limits  
When selected, this function requires you to enter a PIN code. To delete limits:  
1. Touch “Delete limits”, a numbered keypad is displayed.  
2. Enter your PIN number and touch the “tick” icon. The Delete limits panel opens. Touching the  
“cross” icon closes the numbered keypad without making any change.  
3. On the Delete limits panel, touch the panel for the custom limits to be deleted (User 1 to 5).  
4. The message “Are you sure you want to delete this Limits Set?” is displayed.  
5. Touch “Yes”. The previously selected User 1 to 5 limits panel is deleted. Touching “No” returns  
you to the Delete limits panel without making any changes.  
6. If required, repeat this procedure to delete other limit sets (User 1 to 5).  
7. If required, you can now create new Limit sets to replace deleted limit sets, see “Create new  
limits” above.  
8. Touch the Back/Return button to return to the ADTS Settings menu.  
Auto zero (only in measure mode): when auto zero is On (default), the Pt and Ps sensors are  
automatically aligned using the Ps channel as the reference channel.  
To turn auto zero On and Off:  
1. Touch the auto zero panel inside the white box. When auto zero is On, a “tick” appears inside  
the box. If no “tick” is visible, auto zero is Off.  
Change supervisor PIN: when selected, this function allows you to enter a new PIN code. To change  
your PIN:  
1. Touch the “Change supervisor PIN” panel. A numbered keypad opens and the text “Enter  
Supervisor Pin” is displayed.  
2. Enter your current PIN. The text “New PIN” is displayed. Touching the “Cross” icon cancels the  
action and closes the numbered keypad without changing the PIN.  
3. Enter the new PIN number and touch the “tick” icon. You will be asked to confirm the change.  
4. Enter the new PIN again and touch the “tick” icon again. The numbered keypad closes and the  
new PIN is now active.  
5. You will be prompted to remember the new PIN.  
6. Touch “OK”. The new PIN is now active and the “Change supervisor PIN” panel closes.  
Regional settings  
Opens a sub-menu containing four items:  
Date: to change the date setting:  
1. Touch the date panel. The current setting is displayed.  
2. On the displayed calender, select the required “Day”, “Month” and “Year”.  
3. Touch the “Tick” icon, the calender closes and the new date is displayed in the date panel.  
4. Touching the “Cross” icon cancels the action and closes the calender.  
Date format: shows the current format. To change the date format:  
1. Touch the date format panel.  
2. Touch the required date format radio button. The date format radio button panel closes and  
the date format panel shows the selected format.  
Time: to change the time setting:  
1. Touch the time panel. The current setting is displayed.  
2. On the displayed panel, select the required “hours”, “minutes” and “seconds”.  
3. Touch the “Tick” icon, the time panel closes and the new time is displayed in the time panel.  
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4. Touching the “Cross” icon, cancels the action and closes the time panel.  
Time format: shows the current format. To change the time format:  
1. Touch the time format panel.  
2. Touch the required time format radio button. The time format radio button panel closes and  
the time format panel shows the selected format.  
Language: shows the current language setting. To change the language setting:  
1. Touch the language panel.  
2. Touch the required language radio button. The language radio button panel closes and the  
language panel shows the selected language.  
Area of use: shows the current area of use setting. To change the area of use setting:  
1. Touch the area of use panel.  
2. Touch the required area of use radio button. The area of use radio button panel closes and the  
area of use panel shows the selected area of use.  
Screen rotation: shows the current screen rotation (0 or 180). To change the screen rotation:  
1. Touch the screen rotation panel.  
2. Touch the required screen rotation radio button. The screen rotation radio button panel closes  
and the screen rotation panel shows the selected screen rotation.  
Touch screen test: allows you to carry out a quick touch screen (pass/fail) test:  
1. Touch the Touch screen test panel. The touch screen test dialog is displayed.  
2. Touch “OK”.  
3. Touch the screen at the start of the diagonal line(s) and drag along the length of the line to  
erase the line.  
4. If the line(s) are erased touch “PASS”, if not, touch “FAIL”.  
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3.7 Tools  
On the “Dashboard” screen, select “Tools”.  
Note: The ADTS contains some PIN protected menus. A list of factory default PIN codes can be found in  
section 4, “PIN codes and PIN protection”.  
The Tools screen opens showing the available controls. The following table is a tools menu overview:  
Tools menu overview  
Calibration (Calibrate sensors)  
Calibration (Software update)  
Sensor  
Change CAL pin  
Upgrade: ADTS Touch  
- Application  
- Operating system  
Upgrade: ADTS  
- Update main code  
List of devices  
Bluetooth®  
New scan for devices  
Certification status  
ADTS Touch  
System status  
ADTS  
Communications  
Software installed  
History  
Summary  
Support  
Save/Recall ADTS Touch settings  
Save ADTS Touch settings  
Recall ADTS Touch settings  
Delete ADTS Touch settings  
Copy all files from USB  
Copy all files to USB  
Restore last ADTS Touch settings  
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Request to be system master  
Manuals  
ADTS manuals  
Customer documents  
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Table 3-3 Tools menu  
Calibration (Calibrate sensors)  
To access this function you will be required to enter your PIN. This function is used to set new  
corrected values for the sensors based on the outcome of the calibration procedures detailed in  
section 4 “Calibration”. The “Calibration” sub-menu contains the following items:  
Sensor: opens the “Calibration check” sub-menu showing the current values for Ps and Pt:  
To enter new correction values for Ps:  
1. Touch the Ps panel. The Ps sensor correction panel opens.  
2. Follow the on-screen instructions. Touch the “tick” icon. A numbered keypad opens.  
3. Perform the same procedure to enter new correction values for Pt.  
Change CAL PIN: when selected, this function allows you to enter a new PIN code. To change your  
PIN:  
1. Touch the “Change CAL PIN” panel. A numbered keypad opens.  
2. Enter the new PIN number and touch the “tick” icon. You will be asked to confirm the change.  
3. Enter the new PIN again and touch the “tick” icon again. The numbered keypad closes and the  
new PIN is now active.  
4. Touching the “Cross” icon cancels the action and closes the numbered keypad without  
changing the PIN.  
Calibration (Software upgrade)  
To access this function you will be required to enter your PIN. This function is used to implement  
software upgrades for the ADTS Touch and the ADTS following installation of updated software.  
The “Calibration” sub-menu contains the following items:  
• ADTS Touch software upgrade:  
- Application.  
- Operating system.  
• ADTS software upgrade:  
- Main code.  
- Boot code.  
For a detailed description of the software download and installation procedures see section 5.5,  
“Software updates”.  
Bluetooth®  
Opens a sub-menu containing three items. Functions related to the first two items are only  
available when the ADTS Touch is not connected to the mains supply, see also section 3.14  
“Bluetooth®”:  
List of devices: opens the “List of devices” window containing a list of available devices. Select the  
device of interest and touch the “tick” icon. Information related to that device is displayed in the  
tools screen. Touching the “cross” icon closes the “List of devices” window.  
New scan for devices: this function initiates a scan of the local area for other ADTS‘s and ADTS  
Touch‘s, which will then be listed. To select another device:  
1. touch on the device name.  
2. Touch the “Tick” icon, the device is selected and the list closes.  
3. Touching the “Cross” icon, cancels the action and closes the list.  
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Certification status: shows certification and compliance information for the area in which the ADTS  
is being used.  
System Status  
Opens the “Status” sub-menu. The “Status” sub-menu contains the following items:  
ADTS Touch: opens the “ADTS touch status” window containing the following items:  
- ADTS Touch: shows the model number and serial number of the ADTS Touch in use.  
- Battery: status information about the battery in use.  
ADTS: opens the “ADTS status” window containing the following items:  
Sensors: shows related sensor status information as follows:  
- Ps: sensor Ps status.  
- Pt: sensor Pt status.  
- Source: sensor source status.  
- Vacuum: sensor vacuum status.  
Pumps: shows related information about the following pumps:  
- Source pump: usage, shown in running hours and time to next service in hours.  
- Vacuum pump: usage, shown in running hours and time to next service in hours.  
Communications: shows the communication status between the ADTS Touch and the ADTS:  
1
2
Figure 3-10 Communications main screen  
To view the status information for the ADTS Touch or ADTS:  
1. Touch the image on the screen for the item of interest (1) or (2). Information related to that  
item is displayed.  
2. Touch the displayed information panel to close the panel.  
Software installed: information about the installed software and version numbers.  
History: opens the “History” sub-menu. The “History” sub-menu contains the following items:  
- Calibration history: shows the “Calibration history” for:  
- Ps: Sensor Ps history.  
- Pt: Sensor Pt history.  
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- Software history: shows the “Software history” for:  
- ADTS Touch main code: shows the software versions and installation dates.  
- ADTS Touch OS build: shows the OS versions and installation dates.  
- ADTS Touch boot ROM: shows the boot ROM versions and installation dates.  
- Hardware history: if applicable, information relating to any hardware fitted.  
- Message history: shows the main event log for activities such as; switching on, error massages  
and codes, and system status changes.  
Summary: shows relevant information relating to the unit, including:  
- ADTS Touch serial number.  
- ADTS Touch main code.  
- ADTS Touch OS build.  
- ADTS Touch boot ROM.  
- Area of use.  
- ADTS serial number.  
- ADTS main code.  
- ADTS boot ROM.  
Support: contact information for technical support. You can also get support at:  
Save/Recall ADTS Touch settings  
Opens the “Save/Recall User Setup” sub-menu. The “Save/Recall User Setup” sub-menu contains  
the following items:  
Save ADTS Touch settings: opens the “Save settings as” panel and keyboard, the cursor is already  
positioned in the text box:  
1. Type a unique ID name for the setting to be saved.  
2. Touch the “Tick” icon, the settings are saved and the panel and keyboard closes.  
3. Touching the “Cross” icon, cancels the action and closes the panel.  
Recall ADTS Touch settings: displays a list of previously saved settings:  
1. From the list, touch the required settings ID. Settings specific to that ID are restored.  
Delete ADTS Touch settings: displays a list of previously saved settings:  
1. From the list, touch the required settings ID.  
2. A dialog appears asking the question “Erase Files” “Yes” or “No”.  
3. Touch “Yes” followed by “OK” to delete the settings.  
4. Touch “No” to cancel the action and return to the “Save/Recall User Setup” sub-menu.  
Copy all files from USB: allows you to copy files saved on a USB device:  
1. Touch the “Copy all files from USB” panel.  
2. A dialog appears asking the question “Are you sure you want to copy all the files from the  
USB?”, “Any files with the same name will be overwritten”, “Yes” or “No”.  
3. Touch “Yes” to copy the files from the USB device.  
4. Touch “No” to cancel the action and return to the “Save/Recall User Setup” sub-menu.  
Copy all files to USB: allows you to copy saved files to a USB device:  
1. Touch the “Copy all files to USB” panel.  
2. A dialog appears asking the question “Are you sure you want to copy all the files to the USB?”,  
“Any files with the same name will be overwritten”, “Yes” or “No”.  
3. Touch “Yes” to copy the files to the USB device.  
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4. Touch “No” to cancel the action and return to the “Save/Recall User Setup” sub-menu.  
Restore last ADTS Touch settings: restores the settings to the last power-up state:  
1. Touch the “Restore last settings” panel.  
2. A dialog appears asking the question “Are you sure you want to restore the ADTS settings to  
the last power-up state?”, “Yes” or “No”.  
3. Touch “Yes” to restore to the last power-up settings.  
4. Touch “No” to cancel the action and return to the “Save/Recall User Setup” sub-menu.  
Request to be system master  
In the event that more than one ADTS Touch is in use with the same test set, then the second ADTS  
Touch can be designated as the master using this function.  
ADTS manuals  
Touching “ADTS Manuals” displays a list of available ADTS manuals installed on your ADTS.  
Touching the screen on one of the documents results in the display of that document. When a  
document is displayed, touching the “cross” icon, in the top right corner, closes the document  
window.  
Figure 3-11 ADTS manuals screen  
Customer documents  
Touching “Customer documents” displays a list of available customer specific documents installed  
on your ADTS. Touching the screen on one of the documents results in the display of that  
document. When a document is displayed, touching the “cross” icon, in the top right corner, closes  
the document window.  
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3.8 Go to ground  
Starts the “Go to ground” procedure for all channels. The ADTS takes all channels to ground  
pressure. See also section 1.6 “ADTS Touch”.  
1. To command the controller to take all channels to ground pressure, first touch the "Aircraft  
Status” icon.  
The new overlay screen shows the current aircraft status.  
2. The display shows the current “Rate” at which the aircraft will go to ground (1).  
1
Figure 3-12 Go to ground main screen  
3. To change the “Rate”:  
- Touch the “Rate” window (1), the “Set Rate” panel is displayed.  
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Figure 3-13 Set rate panel  
- Use the numbered keypad to input the new go to ground rate.  
- Touch the “tick” icon on the keypad (2). The keypad closes and the new rate is displayed.  
- Touching the “Cross” icon on the keypad (3), cancels the action and closes the Set Rate panel.  
4. Touch the green “tick” icon on the Go to ground screen (4).  
4
Figure 3-14 Start go to ground action  
The aircraft colour changes to orange while it is being controlled to ground pressure.  
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Figure 3-15 Aircraft going to ground  
5. To request all channels to temporarily hold at the current controlled pressure, touch the green  
"hand" icon (5). The controller status bar will change from CONTROL to HOLD and the “Hand” will  
turn orange. This action will also hold a descent to ground. The HOLD state may be released  
either by again touching the orange "hand" icon or by returning to MEASURE mode. The “hand”  
will turn green to indicate hold is released.  
Figure 3-16 Hold status during go to ground ramp  
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When at ground pressure, the aircraft colour changes to green.  
6
Figure 3-17 Aircraft at ground  
6. Touch the “cross” icon (6) to close the Go to ground screen.  
Figure 3-18 Go to ground complete  
The display shows “AT GROUND”. The ADTS will remain in this aircraft safe condition for as long as  
required so that Ps or Pt port pipe connections may be added or removed without creating  
pressure transients to connected systems.  
Operating the MEASURE/CONTROL icon will cancel the AT GROUND state.  
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3.9 Manual Venting of the Aircraft Pitot and Static Systems  
ADTS status on power failure  
On removal of power, the main output valve linking external ports Pt and Ps to the internal pressure  
controllers will automatically close. The aircraft pitot and static systems remain safe but with the last  
applied pressures now isolated and maintained in the hoses.  
ADTS status on restoration of power  
When power is restored to the ADTS the normal self test routine for the ADTS will be performed and at  
the end of this the ADTS will exactly equalize the internal manifold pressures to match those of the  
external aircraft hoses and then the output valves will be reopened. This process will at all times  
protect the aircraft pitot and static systems from adverse pressure transients, differentials or  
excessive rates.  
When the output valves are fully opened, the normal parameter measurement screens become  
available from the Dashboard and full control is again available. The testing may then either continue  
from the same point (when the power failure occurred) or the aircraft pitot and static systems may be  
safely controlled back to ground pressures.  
Actions if power cannot be quickly restored  
Two courses of action are possible at this point:  
1. Leave the ADTS connected to the aircraft pitot and static systems with pipes safely isolated but  
maintaining trapped pressures until such time as power can be restored.  
2. Use the manual let-down valves on the ADTS front panel to safely bleed the trapped hose pressures  
back to ambient ground. This must be carried out in a way that ensures the Pt to Ps differential  
pressure remains at zero while the whole connected system is brought to ground pressure.  
Open the valves slowly while monitoring the cockpit gauges for any excessive rate of change.  
The order the manual let-down valves are opened is:  
Figure 3-19 Manual let-down ADTS542F and ADTS552F  
Number of  
Channels  
1st Valve open  
Pt to Ps (A)  
2nd Valve open 3rd Valve open  
4th Valve open  
N/A  
Application  
2
Pitot & Static  
Ps to Atm (B)  
N/A  
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Figure 3-20 Manual let-down ADTS553F  
Number of  
Channels  
1st Valve open  
2nd Valve open 3rd Valve open  
4th Valve open  
Application  
3
Ps2 to Ps1 (A)  
Pt1 to Ps1 (B)  
Ps1 to Atm (C)  
N/A  
Smart Probe  
Angle of Attack  
Figure 3-21 Manual let-down ADTS554F  
Number of  
Channels  
1st Valve open  
Pt2 to Ps2 (A)  
2nd Valve open 3rd Valve open  
4th Valve open  
Ps1 to Atm (D)  
Application  
4
Pt1 to Ps1 (B)  
Ps2 to Ps1 (C)  
Pitot & Static  
Pilot & Copilot  
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3.10 Example Basic Aircraft Test Operation using the ADTS542F  
Preparation for Testing  
If unfamiliar with the features and functions of the ADTS542F then it is important for operators to  
read and understand the following documents before use:  
• Safety and Installation Guide K0554.  
• User Manual K0553 (this document).  
If the ADTS542F proposed for use has just been delivered, been stored for an extended period or  
the operability is unknown for any reason, then perform a standard serviceability test of the ADTS  
before use on aircraft. Details of this test can be found in section 6.2.  
Familiarise yourself with all aircraft specific test requirement s, personal and aircraft safety  
precautions from the manufacturer’s Aircraft Maintenance Manual (AMM).  
Aircraft Connections  
Firstly, consider where to place the ADTS base unit such that it can be safely accessed by the  
operator but also has practical routes for piping to the aircraft ports that will not get knocked or  
damaged during test operations. This may be either on the hangar/apron floor or a cockpit level  
gantry.  
Any difference in height between the ADTS front panel and the aircraft ports must be configured  
on the ADTS as an altitude correction (see section 2.6). If working on the aircraft outdoors, the  
signal strength of the radio data link to the ADTS Touch will be optimised if the ADTS is placed with  
line of sight to the cockpit windows.  
Assess the hose lengths that will be required and provision either from the ADTS542F delivery kit or  
from local stores. The ADTS542F is supplied with low temperature red and blue flexible hoses at  
3m length as standard, but longer hoses may be requested to order. A configurable label kit is  
provided so that Ps and Pt channel colour coding may be set in line with regional standards. Both  
of the standard hoses come with ready fitted AN4 size fittings suitable for the ADTS Ps and Pt  
output ports.  
The other end of each hose is open to allow users to fit hose extensions or other pressure adaptors  
as required.  
The direct connections to the aircraft Pitot and Static ports should be made using the adaptor set  
approved in the AMM, or using equivalents supplied by a specialist port adaptor manufacturer.  
We do not recommend the use of improvised connections since this can lead to excessive leakage  
and potential damage to the aircraft avionics systems.  
When all the required pipework has been connected, the ADTS should be turned on as soon as  
possible to allow a few minutes for it to reach a stable operating temperature. This is a safe action  
for the aircraft regardless of whether the ADTS Touch is connected or not at this time. No changes  
in pressure will be applied to the aircraft until actively requested. Make the ADTS Touch data  
connection to the ADTS, either by Bluetooth® data connection or cable (see section 3.2).  
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Altimeter and Airspeed Indicator Testing  
Limits Protection Checks  
The ADTS will automatically power up with the HELICOPTER limits in force. This table enforces the  
most restricted control range on the ADTS output pressures, so this default configuration is the  
safest of the three predefine limit sets if working on small, low speed aircraft.  
Consult the AMM to check the approved maximum test ranges for Altitude, Rate of Climb, Airspeed  
and Mach for your aircraft.  
It is important to have the ADTS limits set correctly configured for the following reasons:  
a) Prevents operators mistakenly entering test aims which exceed the aircraft maximums.  
b) Provides early real time warnings that ranges and rates are being exceeded (due to Pitot Static  
system leak etc.).  
c) Will prevent inadvertent creation of excessive Mach conditions due to selection of inappropriate  
altitude and airspeed combinations.  
d) Will ensure that the ADTS can successfully reach any extended range test points as required.  
Consult the ADTS limits values for the three predefined tables, HELICOPTER, FIXED WING and MAX  
AERO in the SETTINGS menu (see section 3.6). If a suitable protective limits match cannot be found  
in one of the three predefined tables then choose CREATE NEW LIMITS and edit your own custom  
limits table name and preferred values from the offered starting values. This protected operation  
will require use of the Supervisor PIN code. Any attempt to enter limit values greater than the ADTS  
pneumatic control maximums will create a warning to the user requesting a lower value. Before  
attempting to create a new custom named limit, first check that there are no more than 4 existing  
user named tables. A maximum of 5 only are allowed, but old unused tables can be deleted as  
required.  
Leak Checks  
Since the leak status of the aircraft is initially likely to be unknown, it is recommended to perform a  
preliminary assessment at low altitude and airspeed stimulus so as to minimise risk to the aircraft  
instruments, should a high rate leak be present.  
It is strongly recommended to enable the ADTS “AUTO LEAK RECOVERY” function. This will  
automatically attempt to regain control of the aircraft pressures if the measured rates of change  
(leak rate) exceed 3000 feet/min or 600 knots/min.  
If no specific leak check procedure is described in the AMM, first select safe rates of parameter  
change for the Ps and Pt channels according to aircraft type. It is suggested to start with  
simultaneous aims of 2000 feet and 200 knots, following the procedure described for the standard  
equipment serviceability test described in section 6.2.  
Correct any leak issues found with the hose connections or aircraft systems before proceeding  
with further testing. The leak status of the ADTS alone may be verified using the procedures in  
section 6.3.  
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Typical Aircraft Instrument Performance Checks  
The required aircraft specific procedures will be detailed in the AMM but the following generic test  
is provided purely as an example of how the ADTS facilities might be best utilised.  
The ADTS produces controlled altitudes based on the standard sea level pressure (zero feet  
reference) that is defined in the ICAO international standard atmosphere model. In order to  
correctly check the aircraft instruments for accuracy against the ADTS, it is vital that the altimeter  
baroscale datum adjustment is set to the same 1013.25 mbar (29.92 inHg).  
Systematically enter the required aims for the Ps and Pt channel from each row of the test table  
below. Aims may be entered either in aeronautical units or absolute/differential pressure units  
according to the requirements of the AMM. For each of the six test row conditions, allow the ADTS  
to approach and stabilise the aims until the ADTS Touch shows each measurement in green  
record the difference between the ADTS and the Aircraft instrument under test.  
Altitude  
(feet)  
Ps Pressure  
(mbar Abs.)  
Airspeed  
(Knots)  
Pt Pressure  
(mbar Abs.)  
Qc Diff.  
Press. (mbar)  
Test Point  
Mach  
0.136  
1
2
3
4
5
6
7
0
1013.25  
843.07  
571.82  
314.85  
238.42  
178.74  
AMBIENT  
90.0  
1026.44  
870.73  
676.80  
479.37  
371.30  
301.91  
AMBIENT  
13.19  
27.66  
5,000  
130.0  
250.0  
310.0  
280.0  
270.0  
0.0  
0.215  
0.497  
0.799  
0.821  
0.899  
0.000  
15,000  
*29,000  
35,000  
*41,000  
GROUND  
104.98  
164.52  
132.88  
123.18  
0.00  
*= RVSM boundaries  
By using the ADTS Touch controls it is possible to present the Ps and Pt channel data for each of  
the 6 test condition rows in all of the formats shown in the table. By using the settings menu to  
change either the chosen pressure or aeronautical unit it is very simple to convert the displayed  
aims and measurement values to the desired format. Such changes can be done without turning  
off control, so the terminal can effectively also be used as a pressure converter/calculator when  
designing your aircraft test procedures.  
The aircraft status screen can be used to give you a very quick overview of whether the aircraft is  
climbing, descending or at stable altitude. If you make a mistake with your data entry, use the  
green “hand” symbol to stop ramping and HOLD stable the current pressure, while you consider  
and correct the intended test point aim. Pressing the now orange “hand” again will release the  
hold when you are ready. The “Hand” returns to green as ramping to the corrected aim begins  
again. If the ADTS Touch loses radio link or the cable accidentally becomes severed, the ADTS will  
automatically enter the HOLD state after 10 seconds. If communications has not been re-  
established after 10 minutes, then the ADTS will automatically begin a descent to ground  
pressures.  
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End of testing  
When testing is complete, use the Aircraft status screen to initiate a descent to ambient ground  
pressure at a safe rate. The rate may be increased or decreased if required from within this screen.  
To see full parameter details, simply clear the status screen view. It can be recalled at any time. If  
working with the ADTS .  
When the ADTS displays the status as AT GROUND, it is then safe to disconnect the aircraft Ps and  
Pt connections. The ADTS base unit will also show steady green on the rightmost aircraft status  
LED when in this state.  
3.11 Engine Pressure Ratio (EPR)  
The ADTS may be used to check EPR sensors and indicators. Use Ps (static) for INLET pressure and Pt  
(Pitot) for OUTLET pressure.  
To carry out an EPR check, the display must be showing units of pressure measurement e.g. mbar,  
inHg.  
Note: Altitude correction applies to EPR values, make sure this correction does not adversely affect  
accuracy. The difference in height between the ADTS and the EPR sensor may be different to the altitude  
correction previously set for the aircraft instruments.  
The EPR function can be operated using one of two methods, as follows:  
1. Direct control of Inlet pressure and target EPR value (outlet pressure is auto-set).  
2. Direct control of Inlet and Outlet pressure (equivalent EPR aim is auto-set).  
The actual method to be used will be specified in the aircraft maintenance manual.  
Setting the EPR - method 1  
1. On the “Dashboard”, select “EPR”. The EPR control screen appears.  
2. On the EPR control screen, set the toggle control (1) for direct control of Inlet pressure and target  
EPR value.  
2
3
1
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FIGURE 3-22 EPR CONTROL SCREEN (METHOD 1)  
3. Touch the “Aim” value (2). A numbered keypad opens.  
4. Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and the  
previously entered value appears in the “IN” display.  
5. Touch the “Aim” value (3). A numbered keypad opens.  
6. Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and the  
previously entered value appears in the “EPR” display.  
Wait for the controller to achieve the EPR aim value and inlet pressure. The outlet pressure has now  
been set based on the inlet pressure and EPR value.  
Setting the EPR - method 2  
EPR testing can also be performed by specifying the actual INLET and OUTLET values.  
1. On the “Dashboard”, select “EPR”. The EPR control screen appears.  
2. On the EPR control screen, set the toggle control (1) for Direct control of Inlet and Outlet  
pressure.  
2
3
1
FIGURE 3-23 EPR CONTROL SCREEN (METHOD 2)  
3. Touch the “Aim” value (2). A numbered keypad opens.  
4. Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and the  
previously entered value appears in the “IN” display.  
5. Touch the “Aim” value (3). A numbered keypad opens.  
6. Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and the  
previously entered value appears in the “OUT” display.  
Wait for the controller to achieve the IN and OUT aim values. The EPR has now been set based on  
the inlet pressure and outlet pressure.  
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On completion of the EPR checks, select “Go to ground” and wait for the AT GROUND message to  
be displayed, see also section 3.8, “Go To Ground”. Refit the pitot and static blanking caps.  
3.12 Test sequence  
The test sequence mode allows you to run tests, using the ADTS, based on previously defined and  
stored test sequence data.  
1. On the “Dashboard”, swipe across to select “TEST SEQUENCE”. The “Test sequence” screen  
appears showing the last used test sequence title (1).  
1
2
3
FIGURE 3-24 TEST SEQUENCE SCREEN  
2. Touch the test file browse icon (2). The “Tools” main menu opens with “Test sequences”  
highlighted and a list of available test files.  
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FIGURE 3-25 TEST SEQUENCES MENU  
4. Touch the desired test file radio button. A list of test procedures in that file is displayed.  
FIGURE 3-26 TEST PROCEDURE SELECTION SCREEN  
5. Select the desired test procedure from the list and touch the “tick” icon to select the procedure.  
Touching the “cross” icon closes the procedures menu without selecting a test procedure.  
6. When the file has loaded, a list of steps, e.g. 1....4, for that procedure is displayed (4). The first  
step in the list is highlighted.  
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4
5
6
FIGURE 3-27 SELECT TEST PROCEDURE STEP  
7. Use the up/down arrows (5) to select the desired procedural step.  
8. If required, use the control (6) to toggle between Measure and Control modes.  
9. When CONTROL mode is selected, the screen changes to CONTROL and shows the actual  
measurement and rate.  
Creating custom test sequences  
These instructions advise how customers may save correctly formatted Comma Separated  
Variable (.CSV) files, ready to be loading to the ADTS Touch. These files are designed in spread  
sheet format using Excel templates.  
Loading new test sequence files can be accomplished by file transfer from a PC to the operating  
system of the ADTS Touch. It provides an environment very similar to Windows File Explorer.  
The data presented on each screen or table of the test sequence is drawn from a single data source  
file. This file uses simple numeric data fields separated by commas, and is known as .CSV format. Files  
of this type may be easily viewed and edited using a spread sheet program such as Excel. Files would  
normally be saved with a meaningful name to assist easy identification and selection.  
The example below identifies the areas or ‘fields’ of the screen where user entries from the CSV file are  
used to format the screen layout and specific test information.  
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1
10  
11  
2
4
3
5
6
7
8
9
FIGURE 3-28 TEST SEQUENCE SCREEN BASED ON DATA FIELD INPUT  
1
Test table title, e.g. Leak Test, which may be used as a title for a page of test aims  
Test reference column header  
2
3
Message text/prompt message  
4
Test Procedure (T.P.) step reference (1....4)  
Test advice notes  
5
6
Ps (inHg) requested aim  
7
Pt (inHg) requested aim  
8
Ps Rate (inHg/min) requested aim rate  
Pt Rate (inHg/min) requested aim rate  
Current Ps and Pt aim indications  
Current Ps and Pt aim rate indications  
9
10  
11  
An example of how the data fields of the file may be populated for use in creating the test screen  
is shown below.  
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Saving Finished Test Sequences as CSV Format  
1. When the test sequence data sheet has been completed, click “File”, “Save As”. The following  
screen is displayed:  
FIGURE 3-30 SAVING THE TEST SEQUENCE FILE  
2. Select the file folder destination in the explorer window.  
3. Give the file an appropriate “File name” and select “CSV (Comma delimited) (*.csv) from the drop-  
down list.  
4. Click “Save”. The file is now saved in the destination folder.  
5. Connect the PC to the ADTS Touch using a USB cable. The ADTS Touch file explorer window  
opens showing the following folders:  
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FIGURE 3-31 ADTS TOUCH FILE EXPLORER WINDOW  
6. Either, copy and paste the CSV file from the PC file explorer, or drag-and-drop the CSV file from  
the PC file explorer into the already created “TestSequences” folder of the ADTS Touch.  
3.13 Pt Only or Ps Only Control modes  
This mode can be used as an alternative to test airspeed indicators (ASI) using just the ADTS Pt or  
Ps port connected to the ASI. An altitude correction may need entering into the ADTS if there is a  
height difference and environmental draughts can cause airspeed errors.  
Note: Enter a positive correction factor when ADTS is below the aircraft reference. Enter a negative  
correction factor when ADTS is above the aircraft reference.  
inst  
reference level  
STATIC  
AIR DATA  
COMPUTER  
PITOT  
altitude  
correction  
value  
ADTS Ps port open  
to atmosphere  
Aircraft STATIC port  
open to atmosphere  
reference  
level  
FIGURE 3-32 EXAMPLE OF PT ONLY CONTROL MODE  
How to use the Pt Only control mode  
1. On the “Dashboard” screen, select “Pitot Static”.  
2. On the ADTS Touch, select the “Aircraft status” icon.  
3. On the “Aircraft status” screen, touch the “tick” icon to start the “Go to ground” procedure for all  
channels. The ADTS takes all channels to ground pressure.  
4. When the aircraft is at ground, touch the “cross” icon to return to the “Pitot Static” screen.  
5. Touch the “home” icon to return to the “Dashboard”.  
6. On the “Dashboard”, select “Settings”.  
7. Select “ADTS settings”.  
8. From the ADTS settings menu, select “CHANNEL MODE”.  
9. From the channel mode screen, select “Ps”.  
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10. Select “Measure Only”. The Ps label changes to “Measure Only”.  
11. Touch the “home” icon to return to the “Dashboard”.  
12. On the “Dashboard” screen, select “Pitot Static”. The “Measure” screen is displayed.  
13. Touch the “Control” (1) icon to toggle the controller on. The following screen is displayed:  
2
1
FIGURE 3-33 PT ONLY CONTROL MODE  
The figure above shows that the Ps channel is in “Measure” mode and the Pt channel is in “Control”  
mode, as shown by the indication (2).  
14. On the ADTS, open the Ps port cap to atmosphere.  
15. Connect the Pt port to the aircraft Pitot system.  
16. Begin single channel airspeed control.  
3.14 Bluetooth®  
In order to obtain the best results when using Bluetooth® wireless technology it is important to  
correctly position the base unit of the ADTS in a reliable coverage area with respect to the aircraft.  
Figure 3-34 gives an example of good base unit positioning, which should be:  
• forward of a line level with the cockpit window  
• a minimum of 1 m away from the fuselage edge  
• a maximum of 8 m out from the nose wheel  
• position the top edge of the base unit nearest to the aircraft with the output ports facing upwards.  
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FIGURE 3-34 BLUETOOTH® RELIABLE COVERAGE AREA  
Optimum pairing procedure  
The following procedure is used to “Pair” the base unit and ADTS Touch:  
1. Place the ADTS Touch on (but not docked) or close to the base unit.  
2. Power cycle the base unit and ADTS Touch.  
3. On the ADTS Touch, select “TOOLS”. The “TOOLS” menu opens.  
4. From the “TOOLS” menu, select “BLUETOOTH”. The “BLUETOOTH” menu opens.  
5. Select “SCAN FOR NEW DEVICES”. The message “Please wait scanning for devices” is displayed.  
A list of available devices is displayed showing the MAC address and serial numbers of the  
devices.  
6. If necessary, scroll down the list and select (highlight) the desired base unit serial number from  
the list.  
7. Touch the “tick” icon to confirm the selection and close the list of devices. The base unit and  
ADTS Touch are now “Paired”.  
8. Touching the “cross” icon closes the list of devices without making any changes.  
If the Bluetooth® link drops and does not automatically reconnect, then repeat the procedure  
above rather than pairing the devices from within the cockpit.  
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3.15 ADTS TOUCH-ER (Extended Range) Bluetooth®  
On large aircraft, particularly if situated out in the open away from buildings or other reflective  
surfaces, Bluetooth® link performance can be impaired. The ADTS TOUCH-ER has been developed  
for these instances.  
This unit is the same as the standard ADTS TOUCH in every way with the exception of the  
Bluetooth® antenna, which is provided as a removable antenna connected to an external RF  
connector on the base of the unit.  
FIGURE 3-35 EXTERNAL BLUETOOTH® ANTENNA  
The ADTS TOUCH-ER is provided with both a standard external antenna, and also an antenna  
extension kit, which enables the antenna to be mounted directly on the inside of the cockpit  
window using a suction cup assembly, and then connected to the RF connector on the body of the  
ADTS TOUCH-ER using a cable. Both options allow the operator to move freely around the cockpit,  
and the most appropriate option should be chosen by the operator at time of testing on the day  
and aircraft concerned.  
WARNING  
AT LEAST 20CM OF SEPARATION DISTANCE BETWEEN THE TOUCH-ER ANTENNA AND THE  
USERS BODY MUST BE MAINTAINED AT ALL TIMES WHEN BEING USED WITH THE ANTENNA  
EXTENSION KIT. ENSURE ANTENNA SUCTION CUP IS ATTACHED TO THE COCKPIT WINDOW  
BEFORE CONNECTING EXTENSION KIT TO THE TOUCH-ER TO PREVENT THE 20CM  
SEPARATION FROM BEING INFRINGED UPON.  
ATTENTION  
EN UTILISANT LE KIT DEXTENSION DE LANTENNE, UNE DISTANCE DE SÉPARATION MINIMALE  
DE 20 CM DOIT ÊTRE LAISSÉE ENTRE LANTENNE TOUCH-ER ET LUTILISATEUR. AFIN DE  
RESPECTER LES 20 CM DE DISTANCE DE SÉCURITÉ, LUTILISATEUR EST PRIÉ DE COLLER LA  
VENTOUSE DE LANTENNE À LA VITRE DU COCKPIT ET CE AVANT DE CONNECTER LE KIT  
DEXTENSION AU TOUCH-ER.  
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FIGURE 3-36 BLUETOOTH® ANTENNA EXTENSION KIT  
In general terms, the Bluetooth® performance with the different options can be described as  
follows, although this is very dependant upon aircraft type, and its immediate environment (in  
terms of RF reflecting surfaces). Performance inside a hangar environment is generally better than  
when the aircraft is out in the open on an airfield.  
Bluetooth®  
performance  
Unit  
Antenna  
ADTS TOUCH  
Internal  
External  
Good  
Better  
Best  
ADTS TOUCH-ER  
ADTS TOUCH-ER  
External (fixed to  
Cockpit Window)  
Note: When using the antenna extension kit, the antenna should be placed on the cockpit window  
on the same side of the aircraft as the ADTS controller unit.  
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FIGURE 3-37 BLUETOOTH® - CONTROLLER POSITIONING  
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CHAPTER 4 CALIBRATION  
4.1 Introduction  
For the system to remain accurate, a calibration check should be carried out at regular intervals.  
The recommended calibration period is 12 months. If the accuracy of the system is not within the  
specification, carry out a calibration adjustment.  
4.2 PIN codes and PIN protection  
The ADTS contains some PIN protected menus. The following table lists the factory set default PIN  
numbers:  
Settings  
ADTS settings  
Edit limits  
0268  
0268  
0268  
0268  
Create new limits  
Delete limits  
Change supervisor PIN  
Tools  
Calibration (Calibrate sensors)  
Calibration (Software update)  
Calibration (Option configuration)  
4321  
5487  
1234  
Important note  
Change these codes to prevent unauthorised access. Unauthorised access to these menus can  
make this system inaccurate and could, in control mode, cause excessive rates of pressure  
change.  
4.3 Calibration process  
The calibration process is PIN protected. This chapter describes the Ps and Pt sensor calibration.  
The “Tools”, “Calibration” “Sensor” menu contains the calibration adjustment as part of the  
function “Calibration check”.  
Note: Calibration checks must be performed within the calibration check menu because the main Ps/Pt  
measure display screen Pt reading includes an “Auto Zero” correction for any residual offset error  
between the Ps and Pt sensors.  
Precision  
Precision is a term which includes the ADTS measurement system errors of non-linearity,  
hysteresis and repeatability over the ADTS operating temperature range. Precision does not  
include errors introduced by the equipment used for calibration of the ADTS or ADTS calibration  
stability errors as stated on the ADTS data sheet.  
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Accuracy specifications  
(k = 2, 95% uncertainty)  
Includes: NL, H and R over the ADTS operating  
temperature range and calibration stability  
over 12 months and calibration equipment  
uncertainty stated in Table 4-3  
ADTS542F  
Test method  
Pneumatic  
pressure  
Ps Range:  
92 mbar to 1130 mbar absolute  
Compared against  
calibration standard  
Accuracy:  
Refer to current product data sheet  
Pt Range:  
92 mbar to 1997 mbar absolute  
Accuracy:  
Refer to current product data sheet  
Table 4-1 Calibration requirements ADTS542F  
Accuracy specifications  
(k = 2, 95% uncertainty)  
Includes: NL, H and R over the ADTS operating  
ADTS552F  
Test method  
temperature range and calibration stability  
over 12 months and calibration equipment  
uncertainty stated in Table 4-3  
Pneumatic  
pressure  
Ps Range:  
72 mbar to 1130 mbar absolute  
(EALT option 57 mbar)  
Compared against  
calibration standard  
Accuracy:  
Refer to current product data sheet  
Pt Range:  
72 mbar to 1997 mbar absolute  
(EALT option 57 mbar)  
Accuracy:  
Refer to current product data sheet  
Table 4-2 Calibration requirements ADTS552F  
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Equipment Type  
Minimum use specifications  
Purpose  
Calibration standard  
(absolute)  
Range:  
Calibration  
35 mbar to 2000 mbar absolute  
Expanded uncertainty (k = 2):  
32ppm of reading +0.007 mbar  
(0.0032% of reading +0.70 Pa)  
All traceable to national standards.  
If a calibration standard with higher uncertainty is used, the ADTS accuracy will be  
degraded and may exceed the ADTS sales data sheet specification.  
Table 4-3 Calibration equipment uncertainty  
Suggested two-point calibration adjustment points  
Calibration points are nominal pressures to allow for slight differences due to primary standard  
weights and actual corrected pressure calculations.  
• Ps: two point cal points = 1st point is 1128mbar (FS) followed by 92mbar (suggest to be done in this  
order).  
• Pt: two point cal points = 1st point 92mbar followed by 1997mbar (FS) (suggest to be done in this  
order).  
Suggested calibration check points  
Ps (Calibration check points)  
Pt (Calibration check points)  
92.00 mbar  
178.74 mbar  
314.85 mbar  
465.63 mbar  
696.82 mbar  
843.07 mbar  
1013.25 mbar  
1128.03 mbar  
-
(~55,000ft)  
(~41,000ft)  
(~29,000ft)  
(~20,000ft)  
(~10,000ft)  
(~5,000ft)  
(~0ft)  
92.00mbar  
178.74mbar  
314.85mbar  
465.63mbar  
696.82mbar  
843.07mbar  
1013.25mbar  
1128.03mbar  
1500mbar  
(~-3,000ft)  
-
-
-
1997mbar  
Note: ~means approximately  
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Table 4-4 Calibration check points  
4.4 Calibration description  
The date of calibration adjustment is logged and stored during this procedure. It is important that the  
ADTS Touch clock date is checked before starting a calibration adjustment or an incorrect date may  
be recorded. Instructions for checking and setting the time and date can be found in section 3.6.  
“As found” data does not have to be recorded before an adjustment to the selected channel has been  
carried out. Record “as found” date as required.  
Preliminary operations  
1. Review and become familiar with the whole procedure before beginning the calibration process.  
2. Allow at least two hours for the ADTS to thermally stabilize after switching on and before  
performing any calibration routines.  
3. Before starting a calibration procedure carry out a leak test, see section 6.3).  
4. The pressure reference level of the ADTS is the top face of the front panel when the front panel is  
facing upwards, see also, section 2.6 “Positioning the ADTS”. In calibration check mode the ADTS  
sets its altitude correction to zero.  
Calibration check  
This procedure checks the calibration accuracy without adjusting it. It may be used either to see if the  
system requires a calibration or to verify performance following a calibration adjustment.  
1. Ensure the standard and the ADTS are at atmospheric pressure.  
2. Connect your calibration standard to the Ps or Pt channel.  
3. Open the “Tools” menu, select “Calibration (Calibrate sensors), enter your PIN, select “Sensor”,  
“Calibration check” sub-menu showing the current values for Ps and Pt.  
4. Apply pressure to the selected channel to Full Scale (FS) and lowest point, repeat this process a  
minimum of three times.  
5. Adjust the calibration standard to apply pressure to the Ps or Pt channel. To decide if the applied  
pressure is stable ensure that the value of the ADTS displayed pressure equivalent to a resolution of  
0.001 mbar is stable, within ±0.001 mbar, and free from “creep”. Calculate the actual applied  
pressure reading to at least 4 decimal places. No data is entered to the ADTS when performing a  
calibration check. Reference pressure entries are for the sensor adjustment operation only.  
6. The leak rate must be low enough to prevent the primary standard dead weight tester piston from  
moving outside the mid operating point during the calibration procedure.  
7. Compare the applied pressure value on the calibration standard to the value displayed on the ADTS  
and record the difference.  
8. If the recorded difference exceeds the allowable tolerance, carry out the “Calibration adjustment”  
procedure detailed below.  
9. Repeat this procedure for the other channel.  
Calibration adjustment  
The procedure applies known pressures to the ADTS and then entering the exact applied pressure  
using the ADTS Touch. After all calibration points have been entered, the ADTS automatically  
calculates the necessary offset (zero) and slope (span) corrections.  
1. Select Ps or Pt. The Ps or Pt sensor correction screen opens.  
2. Follow the on-screen instructions.  
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3. Calculate the actual applied pressure reading to at least 4 decimal places and enter this value into  
the ADTS.  
4. Repeat this procedure for the other channel.  
The adjustment requires two pressures for each channel. Adjustment pressures are the lowest and  
highest pressures of the selected channel, see table 4-5:  
ADTS542F  
Pt Channel  
ADTS552F  
Pt Channel  
Ps Channel  
Ps Channel  
92mbar  
92mbar  
71mbar  
71mbar  
1130mbar  
1997mbar  
1130mbar  
1997mbar  
Table 4-5 Adjustment points  
Following a calibration adjustment use the sensor precision values as the calibration check limits.  
Sensor precision value is displayed under the Tools, System status, ADTS, Sensors, Ps/Pt screen.  
Sensor precision values are intended for <24hour post adjustment verification of the ADTS against  
the calibration equipment used to adjust the ADTS. For >24hour specification values or where  
other calibration equipment was used to adjust the calibration refer to the ADTS sales data sheet  
accuracy specification.  
4.5 Completion of sensor calibration  
After completion of all calibration adjustment procedures, carry out the following:  
• Make sure the calibration standard and the ADTS are at atmospheric pressure. Disconnect the  
calibration standard from the ADTS.  
• If there is no further calibration or testing required, exit menus, select standby or switch off the ADTS.  
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CHAPTER 5 MAINTENANCE  
5.1 Introduction  
This section details the before-use tasks and the weekly inspection to be carried out by the  
operator. The maintenance chart shows the maintenance tasks, the periodicity of each task and a  
code referenced to the tasks detailed in Table 5.2.  
Task  
Inspect  
Code  
Period  
Daily, before use  
A
B
C
D
Inspect  
Test  
Weekly  
Before use  
Daily, before use  
Test  
Table 5-1 Maintenance Chart  
5.2 Maintenance Tasks  
Code  
Task  
A
Check that all the equipment is present, record any deficiencies.  
Visually inspect the exterior of the ADTS and its associated equipment for obvious signs of  
damage, dirt and the ingress of moisture. If necessary, use mild liquid detergent and a lint-  
free cloth to clean the external surfaces, see the “Safety and Installation” guide K0554.  
Inspect the pressure outlet ports for ingress of dirt and moisture, if necessary, clean with a lint-free  
cloth.  
B
Visually inspect the pneumatic output connectors for damage.  
Inspect the small o-ring on each pneumatic output connector for cuts and any signs of wear; replace  
as necessary.  
Visually inspect pneumatic hoses, electrical cables for cuts, splits and damage; replace as necessary.  
C
Before use, power-up the unit as detailed in the “Safety and Installation” guide K0554. Check the  
date of the last calibration and, if necessary, refer to the manufacturer.  
Record any error messages and refer to Section 6.  
D
Daily and before use, carry out the SST and leak check detailed in Section 6.  
Table 5-2 Maintenance tasks  
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5.3 Routine Maintenance  
Absolute cleanliness of the work area, tools and equipment are essential.  
Replacing the output connector o-ring  
After inspection as detailed in maintenance task B, carry out the following if the o-ring is worn or  
damaged:  
o-ring  
Figure 5-1 Replacing the o-ring  
1. Carefully remove the o-ring from the small groove at the top of the connector. Fit a new o-ring in  
the small groove at the top of the connector.  
2. Make sure the o-ring is tight in the groove and not damaged after fitting.  
Note: Damage to this o-ring causes leaks.  
Replacing a fuse  
1. Disconnect the electrical power supply.  
2. Unscrew the fuse holder cap and remove the fuse.  
3. Only fit a new fuse of the correct type and rating into the fuse holder cap.  
4. Secure the fuse holder in the front panel.  
5.4 Battery care and maintenance  
ADTS Touch battery pack  
The battery unit contains a Lithium Ion battery which requires no user maintenance.  
Prolonged exposure to temperature extremes may significantly reduce battery lifetime. For  
maximum lifetime, avoid prolonged periods where the battery is exposed to temperatures outside  
the range -30°C to +45°C.  
The recommended storage temperature range is 5°C to 21°C (41°F to 98.8°F).  
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The battery is removable. The manufacturer makes the following safety recommendations. The  
User should not:  
• Short circuit the battery.  
• Immerse the battery in any liquid.  
• Disassemble or deform the battery.  
• Expose to, or dispose of the battery in a fire.  
• Subject the battery to excessive physical shock or vibration outside the specified limits for the ADTS.  
• Use a battery that appears to have suffered abuse.  
The battery unit is sealed for life, so leakage of electrolyte is not expected. If leakage of electrolyte  
from the battery is observed, stop using the battery immediately and avoid contact with the  
electrolyte. If skin or clothes come into contact with the electrolyte, wash immediately with soap  
and water. If electrolyte comes into contact with the eyes, wash the eyes thoroughly with water  
and consult a Doctor immediately.  
5.5 Software updates  
When software updates are available, they can be downloaded from the GE website to a USB  
memory stick and used to update the applications on the ADTS and ADTS Touch.  
Context sensitive help pages are updated with software version increments. ADTS (PDF) manuals  
are updated without prompt when a newer version of the manual is available via the software  
update procedure.  
Alternatively only the ADTS manual can be downloaded to the ADTS Touch from a PC.  
Downloading software updates  
1. Insert a USB memory stick into the computer to be used for the software download.  
2. Go to www.gemeasurement.com. The “GE Measurement & Control” page is displayed.  
3. On the top level menu bar, click “Support”. Menu items under that header are shown.  
4. Click “Download Center”. The “Download Center” page is displayed showing the search panels.  
5. Using the “Search by Product” drop-down search boxes, select:  
- “Test & Calibration”.  
- “Pitot Static Testers”.  
A list of available downloads is displayed containing all available software updates, user  
manuals and data sheets.  
6. Select the appropriate software update required for the product from the list. The “Open/Save”  
file dialogue is displayed.  
7. Click the “Save File” radio button.  
8. Click “OK”. The “Enter name of file to save....” dialogue is displayed.  
9. Save the files directly onto the USB memory stick or to the computer.  
10. If the downloaded files are saved onto the USB memory stick, you may transfer the files to the  
computer, if required.  
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11. The downloaded files are contained within a “zip” folder, e.g. “ADTS5XX_Release_6.zip”. You  
can choose to run this self-extracting file or simply unzip it to the required location.  
12. The extracted directory, e.g. “ADTS5XX_Release_6” contains a further five folders:  
Figure 5-2 Software update folders  
13. Copy these five folders to the root directory of the USB memory stick ready for transfer to the ADTS  
Touch.  
14. Once the files have been downloaded to the USB memory stick, safely remove the USB memory  
stick from the computer.  
Installing software updates  
Installation of software updates will require you to enter your software upgrade PIN.  
Software updates can be installed for both the ADTS and the ADTS Touch via the ADTS Touch. If a  
powered base unit is connected to the ADTS Touch, either because the ADTS Touch is positioned  
on the base unit or because it is connected to the base unit using the umbilical cable, then  
software updates can be installed for the ADTS and ADTS Touch. For integrity of the file transfer,  
the use of the umbilical cord is recommended.  
If the ADTS Touch is only battery powered, then software updates are only possible for the ADTS  
Touch and not for the ADTS.  
To install software updates for the ADTS and ADTS Touch:  
1. Either, position the ADTS Touch on the base unit or connect the ADTS Touch to the base unit  
using the umbilical cable.  
2. Power-up the ADTS in accordance with section 3-2 ensuring that the self-test results in a green  
“Pass” condition.  
3. Switch-on the ADTS Touch (1).  
4. Insert the USB memory stick into the ADTS Touch USB port (2).  
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Figure 5-3 Software updates - ADTS Touch  
5. On the “Dashboard”, touch “Tools”. The tools menu opens.  
6. Touch “Calibration”. A numbered keypad is displayed.  
7. Enter your software update PIN and touch the “tick” icon. The “Software Upgrade” menu is  
displayed containing two items: ADTS TOUCH and ADTS.  
ADTS TOUCH  
- APPLICATION. You will be asked to confirm the software upgrade “Yes” or “No”.  
- OPERATING SYSTEM. You will be asked to confirm the software upgrade “Yes” or “No”.  
ADTS  
- MAIN CODE. You will be asked to confirm the software upgrade “Yes” or “No”.  
- BOOT CODE. You will be asked to confirm the software upgrade “Yes” or “No”.  
8. Once you have selected “Yes”, follow the on-screen instructions.  
9. Selecting “No” closes the dialogue without making any changes.  
Downloading ADTS manuals  
1. Go to www.gemeasurement.com. The “GE Measurement & Control” page is displayed.  
2. On the top level menu bar, click “Support”. Menu items under that header are shown.  
3. Click “Download Center”. The “Download Center” page is displayed showing the search panels.  
4. Using the “Search by Product” drop-down search boxes, select:  
- “Test & Calibration”.  
- “Pitot Static Testers”.  
A list of available downloads is displayed containing all available software updates, user  
manuals and data sheets.  
5. Select the appropriate manual from the list. The file is displayed as a PDF with a set of function  
buttons in the top right corner.  
6. Click the “Download” button.  
7. The “Open/Save” file dialogue is displayed.  
8. Click “OK”. The “Enter name of file to save....” dialogue is displayed.  
9. Save the files directly onto the USB memory stick or to the computer.  
10. If the downloaded files are saved onto the USB memory stick, you may transfer the files to the  
computer, if required.  
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11. Install the manuals onto the ADTS Touch using the “Installing ADTS manuals or customer  
documents” procedure.  
Installing ADTS manuals or customer documents  
When plugged into a computer, the ADTS Touch will appear as a USB mass storage device. The  
computer’s file explorer can be used to transfer files between the computer and the ADTS Touch.  
1. Connect the ADTS Touch to a computer using a USB to mini-USB cable.  
2. The ADTS Touch will appear as a USB mass storage device with the following two folders: ADTS  
MANUALS and CUSTOMER DOCUMENTS.  
ADTS MANUAL  
- Contains the ADTS safety guide and the ADTS user manual.  
CUSTOMER DOCUMENTS  
- Contains any additional customer specific (PDF) documents which may be viewed on the  
ADTS Touch.  
3. Using the computer’s file explorer, transfer the ADTS manuals or customer documents from the  
computer to the ADTS Touch.  
4. Safely remove the ADTS Touch from the computer.  
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CHAPTER 6 TESTING AND FAULT FINDING  
6.1 Introduction  
Limited testing and fault finding can be carried out by the operator. Units can be returned to the  
nearest GE (www.gemeasurement.com) or approved service centre for fault finding and  
rectification.  
At power-up, the ADTS indicates if there is a fault by flashing an error code and/or displaying a  
message.  
Any fault conditions must be rectified before the ADTS can be used for aircraft system testing.  
6.2 Standard serviceability test  
The following procedure shows if the ADTS is serviceable and checks functions and facilities:  
1. Connect power to the unit.  
2. Make sure the blanking caps are fitted to the front panel outputs.  
3. Set the power supply switch to ON.  
4. Check that the power indicator is on and flashing green. This indicates that a self test is in  
progress. When the self-test is complete, the indicator will be steady green.  
5. Ensure that the ADTS Touch is switched On and connected to the ADTS either by cable or front  
panel docking. Check the display shows the system starting screen and progress indicator.  
6. Check that the display then changes to show the “DASHBOARD”.  
7. Select “PITOT STATIC”.  
8. Select "CONTROL".  
9. Select "ALT" channel “Aim” value of 2000 ft.  
10. Select "CAS" channel "Aim" value of 200 knots.  
11. Wait until the ALT and CAS have reached the “Aim” values and stabilized (indications will be  
green).  
12. Check that the control effort meter arrows are approximately central within the range for  
each channel.  
13. Select "MEASURE".  
14. Check that measured ALT and CAS values are not decaying at excessive rates (no worse than  
25 ft/min and 2 knots/min).  
15. Select Aircraft Status screen.  
16. Select go to ground operation.  
17. Confirm "Aircraft Safe at Ground pressures" state is reached.  
This concludes the basic serviceability test.  
6.3 ADTS leak check  
Before carrying out a leak check, allow at least 15 minutes for the ADTS to warm-up.  
Set-up  
1. On the Dashboard, select “Settings”.  
2. In the “Settings” menu, select “ADTS settings”.  
3. Select "ADTS LIMITS" then "SELECT LIMITS", select "MAX AERO".  
4. Return back to “ADTS Settings”.  
5. Select “Pressure units”.  
6. Select the “mbar” radio button.  
7. Exit the Settings menu and return to the Dashboard.  
8. Select “PITOT STATIC”.  
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Pressure leak check  
This procedure verifies that the unit is leak tight under positive pressure conditions.  
1. Select "CONTROL".  
2. Toggle Pressure Aeronautical Units to mbar.  
3. Swipe screen across right to left to select the Rate Timer and set the “WAIT” time to 5 minutes  
and 0 seconds and touch the “tick” icon.  
4. Set the “TEST” time to 1 minute and 0 seconds and touch the “tick” icon.  
5. Swipe back to the control mode.  
6. Touch the Ps “AIM” value to highlight it.  
7. Use the numbered keypad to input the new value: 1050.00mbar, set rate aim to 500mbar/min  
and touch the “tick” icon.  
8. Touch the Qc “AIM” value to highlight it.  
9. Use the numbered keypad to input the new value: 860.00mbar, set rate aim to 500mbar/min  
and touch the “tick” icon.  
10. Wait until the Ps and Qc have reached the “Aim” values and stabilized (indications will be  
green).  
11. Select "MEASURE".  
12. Swipe across to select the Rate Timer.  
13. To start the timer, touch the “play” icon. The timer starts counting down, the elapsed time  
(percentage) indicator turns blue and the word “WAIT” is displayed.  
14. When the timer reaches 100%, it starts to count down again and the word “TEST” is displayed.  
When the timer reaches 100%, it stops, the elapsed time indicator remains blue and the word  
“END” is displayed.  
15. The display shows the timed rates with a “T” after each value. Check that the Ps, and Qc rates  
are less than or equal to ±0.6 mbar/min. If the rates are greater than this value, allow further  
thermal stabilization time and re-test.  
Vacuum leak check  
This procedure verifies that the unit is leak tight under negative pressure conditions.  
1. Select "CONTROL".  
2. Swipe across to select the Rate Timer and set the “WAIT” time to 5 minutes and 0 seconds and  
touch the “tick” icon.  
3. Set the “TEST” time to 1 minute and 0 seconds and touch the “tick” icon.  
4. Swipe back to the control mode.  
5. Touch the Ps “AIM” value to highlight it.  
6. Use the numbered keypad to input the new value: 100.00mbar, set rate aim to 500mbar/min  
and touch the “tick” icon.  
7. Touch the Qc “AIM” value to highlight it.  
8. Use the numbered keypad to input the new value: 0.00mbar, set rate aim to 500mbar/min and  
touch the “tick” icon.  
9. Wait until the Ps and Qc have reached the “Aim” values and stabilized (indications will be  
green).  
10. Select "MEASURE".  
11. Swipe across to select the Rate Timer.  
12. To start the timer, touch the “play” icon. The timer starts counting down, the elapsed time  
(percentage) indicator turns blue and the word “WAIT” is displayed.  
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13. When the timer reaches 100%, it starts to count down again and the word “TEST” is displayed.  
When the timer reaches 100%, it stops, the elapsed time indicator remains blue and the word  
“END” is displayed.  
14. The display shows the timed rates with a “T” after each value. Check that the Ps, and Qc rates are  
less than or equal to ±0.6 mbar/min. If the rates are greater than this value, allow further thermal  
stabilization time and re-test.  
If repeated failures occur, return the unit to GE or a GE authorised repair depot.  
6.4 Fault codes and error messages  
In the event of a malfunction, the built-in, self-test and diagnostic system displays a message and  
the status indicator flashes a code. The message heading Error indicates a fault or condition that  
interrupts normal operation.  
If the display shows an error message, the unit should be switched off and then on again. If the  
display still shows an error message after switching on again. the unit should be returned to GE or  
a GE authorised repair depot.  
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CHAPTER 7 SPECIFICATION  
7.1 Specification  
For the most up to date equipment specification, refer to the current data sheet, as follows.  
ADTS542F, 920-648x  
ADTS552F, 920-649x  
In addition to the information contained in the latest data sheet, note the following:  
1. ADTS542F - Above 9,144 m (30,000 ft) the rate of climb (ROC/Rt Ps/Pt) into a 3L total volume (Ps 2L +  
Pt 1L) performance is limited by pump capability (that may vary higher or lower depending on pump  
running hours, equipment under test volume, ambient temperature and barometric pressure of the  
day).  
2. ADTS552/553/554F - Above 9,144 m (30,000 ft) the rate of climb (ROC/Rt Ps/Pt) into a 6L total  
volume (Ps 4L + Pt 2L) performance is limited by pump capability (that may vary higher or lower  
depending on pump running hours, equipment under test volume, ambient temperature and  
barometric pressure of the day).  
3. Max ADTS limits - Performance is limited by pump capability (that may vary higher or lower  
depending on pump running hours, equipment under test volume, ambient temperature and  
barometric pressure of the day).  
4. Pump usage hours accumulation factor is dependent on operation temperature.  
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