Omega Hht13 User Manual

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notice. WARNING: These products are not designed for use in, and should not be used for, human applications.  
WARRANTY/DISCLAIMER  
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase.  
OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and  
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2 762 908 / EPO 0614194. Other patents pending.  
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HHT13  
Pocket Laser Tachometer  
with Remote Sensor Input  
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and  
engineering.  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 2004 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic  
medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.  
M4151/0507  
12.0 BATTERIES  
TABLE OF CONTENTS  
When displayed, replace batteries.  
1.0 OVERVIEW ............................................................................. 1  
2.0 FEATURELOCATIONS ............................................................ 1  
3.0 LCD DISPLAYSYMBOLS ....................................................... 2  
4.0 HHT13 SPECIFICATIONS ........................................................ 3  
5.0 PREPARATION FOR MEASUREMENT .................................... 7  
5.1 Non-Contact Preparation ............................................. 7  
5.2 Direct Contact Preparation.......................................... 7  
5.3 Connecting External Sensors ..................................... 8  
6.0 TACHometer Mode ................................................................ 9  
6.1 TACHometer Setup ....................................................... 9  
6.2 TACHometer Operation .............................................. 11  
7.0 RATEMode........................................................................... 12  
7.1 RATE Setup ................................................................. 12  
7.2 RATE Operation .......................................................... 14  
8.0 TOTALizer Mode .................................................................. 15  
8.1 TOTALizer Setup......................................................... 15  
8.2 TOTALizer Operation .................................................. 18  
9.0 TIMER Mode ......................................................................... 19  
9.1 TIMER Setup................................................................ 19  
9.2 TIMER Operation......................................................... 20  
10.0 MAKING MEASUREMENTS .................................................. 21  
10.1 Non-Contact Measurements ..................................... 21  
10.2 Direct Contact Measurements .................................. 21  
11.0 INPUT / OUTPUT .................................................................. 22  
12.0 BATTERIES ........................................................................... 23  
13.0 CLEANING ............................................................................ 23  
14.0 OPTIONS /ACCESSORIES ................................................... 24  
Remove battery  
cover  
Install two 1.5V  
“AA” alkaline  
batteries  
NOTE: Both  
batteries face the  
same direction.  
13.0 CLEANING  
To clean the instrument, wipe with a damp cloth using mild soapy solution.  
23  
1.0 OVERVIEW  
11.0 INPUT / OUTPUT  
The HHT13 is a precision hand-held multifunction Tachometer, Ratemeter,  
Totalizer and Timer. It is programmable to display directly in Revs, Inches,  
Feet, Yards, Miles, Centimeters and Meters or function as a stopwatch or  
interval timer. Input / output sockets allow for remote sensing and pulse  
output to external indicating devices. For ease of use, the instrument can be  
“Locked-on” for continuous operation.  
Input: Accepts remote sensor or  
Remote Contact Assembly  
(HHT13-RCA).  
1/8”  
(3.5mm) stereo phone plug.  
Output: 1 pulse per revolution TTL  
output on internal operation.  
Pulse repeater with external  
sensors. 1/8” (3.5mm) mono  
2.0 FEATURE LOCATIONS  
LCD display  
Input socket (S)  
Output socket (T)  
phone plug.  
Min / Scroll  
Down arrow  
Menu / Select  
and Lock-on  
Common  
(GND)  
Tripod mounting bushing  
button  
Signal Input  
(underside)  
+3V Out to  
Sensor  
+3V Out to  
Sensor  
Start / Reset button  
Belt clip  
Common  
(GND)  
Signal Input  
Input socket  
Input Connector Detail (Stereo plug)  
Output socket  
Max / Scroll Up  
arrow  
Common  
(GND)  
Signal Input  
Common  
(GND)  
Battery compartment  
Signal Input  
AVOID EXPOSURE - LASER RADIATION IS  
EMITTED FROM THIS APERTURE  
Output Connector Detail (Mono plug)  
1
22  
10.0 MAKING MEASUREMENTS  
3.0 LCD DISPLAY SYMBOLS  
10.1 Non-Contact Measurements  
Hand-held  
OR  
External Sensor (HHT20-ROS  
shown)  
Light  
Laser  
10.2 Direct Contact Measurements  
Rotational  
Linear  
(Use concave  
tip for small  
shafts)  
On Target Indicator. Blinks on whenever there is an input  
signal. Will appear to be solid on at higher frequencies.  
to RCA  
Low Battery icon. Indicates that the batteries are low and  
need to be replaced.  
Times Ten icon. Indicates that the value shown is ten times  
that which is displayed.  
from HHT13  
from HHT13  
ONLYUSE MODERATE PRESSURE  
Laser Indicator. Red laser is on when this indicator is  
illuminated.  
WARNING: Making measurements in direct contact with rotating  
equipment can be dangerous. Keep all loose clothing and hair  
away from exposed moving machinery. Keep the hand holding  
the instrument well behind the back end of the Remote Contact  
Assembly. Properly replace all machinery guards after completing  
measurement. Do not use for rotation greater than 20,000 RPM.  
Lock icon. Indicates that the unit is “Locked” on and making  
continuous measurements (Lock mode).  
21  
2
8. Save and  
advance  
4.0 HHT13 SPECIFICATIONS  
Laser Specifications:  
Classification: Class 2 (per IEC 60825-1 Ed 1.2 2001-8)  
Complies with FDA performance standards for laser products except  
for deviations pursuant to Laser Notice No. 50, dated July 26, 2001.  
9. Exit Setup –  
Ready to  
DONE, then Units  
selected  
measure  
Maximum Laser Output: 1mW  
Unit will remember these settings (including lock on/off) even if turned off  
and back on.  
Pulse Duration:  
Laser Wavelength:  
Beam Divergence:  
Beam Diameter:  
Laser Diode Life:  
Continuous  
650 nm  
< 1.5 mrad  
4 x 7 mm typical at 2 meters  
8,000 operating hours MTBF (1 year  
warranty)  
9.2 TIMER Operation  
Measure:  
Manual  
Each press toggles Start and Stop  
Non-Contact Specifications:  
Ranges:  
RPM  
RPS  
RPH  
5 – 200,000  
0.084 – 3,333.3  
300-999,990  
Auto  
OR Start and Stop triggered by  
Remote Optical Sensor  
(HHT20-ROS)  
Resolution: Fixed:  
1 (10 above 99,999)  
Auto-ranging: 0.001 to 1.0 (10 above 99,999)  
Accuracy:  
±0.01% of reading or resolution limit  
Reset  
With Timer stopped -  
Resets time to 00:00.0  
Operating Range: up to 25 feet (7.62 m) or up to 70 degrees off  
perpendicular to reflective tape target  
Lap  
With Timer running -  
Contact Specifications using optional Remote Contact Assembly:  
Stops at elapsed time to date.  
To continue, press again.  
Range:  
Contact Tips:  
10 cm / 12-inch Wheel: 0.5 to 12,000 RPM  
0.5 to 20,000 RPM  
Power Off  
OR Automatic after 90 seconds  
if unit not Locked on  
Resolution: Fixed:  
Auto-ranging:  
1 (10 above 99,999)  
0.001 to 1.0 (10 above 99,999)  
3
20  
Contact Specifications (continued):  
9.0 TIMER Mode  
Accuracy:  
Revs:  
±0.05% of reading (RPM) or resolution limit  
(with no slippage)  
9.1 TIMER Setup  
1. Turn Power  
ON  
Last Units selected  
are displayed  
Linear: ±0.5% of reading or resolution limit (with no  
slippage)  
Contact Measurements Ranges:  
TACHOMETER:  
1a. To toggle Lock  
On/Off  
Revolutions per Minute (RPM) 0.5 to 20,000 RPM  
Revolutions per Second (RPS)  
Revolution per Hour (RPH)  
Press and Hold  
0.0833 to 333.33 RPS  
30 to 999,990 RPH  
Locked On  
2. Enter Setup  
Mode  
RATES:  
Wheel Circumference:  
Inches per Second  
Inches per Minute  
Inches per Hour  
Feet per Second  
Feet per Minute  
Feet per Hour  
10 cm: 0.033 to 1312.3 IPS  
12 in: 0.100 to 2,400.0 IPS  
3. Enter selection  
of Mode  
Last Mode selected  
is displayed  
10 cm: 1.969 to 78,740 IPM  
12 in: 6.000 to 144,000 IPM  
10 cm: 118.11 to 999,990 IPH  
12 in: 360.00 to 999,990 IPH  
4. Select TIMER  
Mode  
OR  
Repeat until  
TIMER displayed  
10 cm: 0.003 to 109.36 FT/S  
12 in: 0.009 to 200.00 FT/S  
5. Save and  
advance  
10 cm: 0.164 to 6,561.7 FT/M  
12 in: 0.500 to 12,000 FT/M  
10 cm: 9.843 to 393,700 FT/H  
12 in: 30.000 to 720,000 FT/H  
6. Enter selection  
of Timer  
MAN or AUTO  
function  
Yards per Second  
Yards per Minute  
10 cm: 0.001 to 36.453 YPS  
12 in: 0.003 to 66.667 YPS  
7. Select Timer  
function  
OR  
Toggles between  
Manual and  
Auto  
10 cm: 0.055 to 2,187.2 YPM  
12 in: 0.167 to 4,000.0 YPM  
19  
4
Contact Measurements Ranges (continued):  
RATES: Wheel Circumference:  
Yards per Hour  
8.2 TOTALizer Operation  
Measure  
OR  
10cm: 3.281 to 131,233 YPH  
12 in: 10.000 to 240,000 YPH  
Miles per Hour  
10 cm: 0.002 to 74.564 MPH  
12 in: 0.006 to 136.36 MPH  
Press and hold  
Lock on  
Max or Min Speed (in  
Recall Max  
or Min  
Centimeters per Second 10 cm: 0.084 to 3,333.3 CM/S  
last selected Tach or Rate  
mode units)  
12 in: 0.21 to 3,048.0 CM/S  
Centimeters per Minute 10 cm: 5.000 to 200,000 CM/M  
12 in: 15.240 to 365,760 CM/M  
Recall Time  
in seconds  
Shows time in seconds  
from when the Start /  
Reset button is pressed  
until the last input signal  
measured.  
Centimeters per Hour 10 cm: 300.00 to 999,990 CM/H  
12 in: 914.40 to 999,990 CM/H  
Meters per Second  
Meters per Minute  
Meters per Hour  
10 cm: 0.001 to 33.333 M/SEC  
12 in: 0.003 to 60.960 M/SEC  
If unit is  
Locked on:  
Resets Max/Min, Total and  
Measurement Time  
10 cm: 0.050 to 2,000.0 M/MIN  
12 in: 0.153 to 3,657.6 M/MIN  
10 cm: 3.000 to 120,000 M/H  
Power Off  
12 in: 9.144 to 219,460 M/H  
OR Automatic after 90 seconds if  
unit not Locked on  
TOTALIZER:  
Counts: 0 to 999,999  
Scale Totals in Inches, Feet, Yards, Centimeters or Meters  
NOTE: Pressing  
OR  
once before 90  
seconds will keep  
measurements in  
memory and the  
display turned on  
longer.  
Input:  
Internal or External optics or linear contact wheel  
Timer Specifications:  
Minutes:Seconds.Tenths to 99:59.9  
Accuracy: ±0.2 second  
Resolution: 0.1 second  
5
18  
Display:  
5 x 0.5” (12.7mm) numeric digits plus 5Alpha-numeric LCD  
2 “AA” 1.5 V (DC) alkaline included  
TOTALizer Setup (continued):  
Batteries:  
9. Enter selection  
of number of  
NONE, 1, 2 or 3  
(Note: Batteries are NOT rechargeable.)  
decimal places  
Battery Life: 30 hours continuous typical with batteries provided  
External Input:  
10. Select decimal  
places  
OR  
Repeat until  
desired decimal  
places displayed  
Absolute max: -0.3 V to 5 V  
(DC)  
Minimum:  
Edge:  
low below 1.2 V and high above 2 V (TTL compatible)  
Triggers on Positive edge  
11. Save and  
advance  
Power Out:  
3.0 V nominal, approx. 2.8 V @ 20 mA max  
Pulse Output: 0 V to 3.3 V  
(DC) pulse  
12. Exit Setup –  
Ready to  
Same shape as External Input signal or high when internal  
optics sees a reflection  
measure  
Dimensions: 6.92” (17.58 cm) H x 2.4” (6.10 cm) W x 1.6” (4.06 cm) D  
Units = COUNT:  
DONE,  
Rotational/Linear Units:  
DONE,  
Weight:  
Approx. 7 oz. (210 g)  
then Units selected USE CONTACT TIP or  
[wheel selected],  
This product is designed to be safe for indoor use under the following  
conditions (per IEC61010-1).  
then Units selected  
Unit will remember these settings (including lock on/off) even if turned off  
and back on.  
Installation Category II  
per IEC 664  
Pollution Degree Level II per IEC 664  
Temperature: 40 °F to 105 °F (5 °C to 40 °C)  
Humidity:  
Maximum relative humidity of 80% for temperatures up  
to 88 °F (31 °C) decreasing linearly to 50% relative  
humidity at 100 °F (40 °C). Humidity non-condensing.  
Specifications subject to change without notice.  
17  
6
6. Enter  
selection of  
Units  
Internal or External ROS: External RCA:  
Different options displayed for  
Internal or External operation.  
5.0 PREPARATION FOR MEASUREMENT  
5.1 Non-Contact Preparation  
For Internal operation (Red laser) or External operation  
using optional Remote Optical Sensor (ROS-Red LED).  
COUNT  
Only  
Rotational: REV  
Linear: INCH, FEET,  
YARDS, CM, METER  
1. Clean  
Shaft  
2. Apply 1/2”  
square T-5  
Reflective  
tape  
7. Select Units  
OR  
Repeat until  
desired Units  
displayed  
8. Save and  
advance  
For Small Shafts:  
OR  
As small as 1/8” wide  
on side or radius edge  
COUNT or REV  
Linear Units  
Last Wheel  
Only for Linear Units:  
8a. Enter selection  
of Wheel  
selected is  
displayed  
5.2 Direct Contact Preparation  
For External operation ONLY using optional Remote  
Contact Assembly (HHT13-RCA).  
8b. Select Wheel  
Toggles  
between  
10CM and  
1 2 I N  
OR  
Select and install contact option:  
8c. Save and  
Advance  
1. Contact Tip (Convex tip shown.  
Use Concave tip for small shafts.)  
Align flats  
7
16  
2. 10 cm Wheel  
OR  
3. 12 inch Wheel  
8.0 TOTALizer Mode  
8.1 TOTALizer Setup  
1. Turn Power  
ON  
Different messages displayed for  
Internal or External operation.  
Install with  
pin in shaft  
fully seated  
in slot.  
Tighten  
screw.  
Tighten screw  
securely into flat  
on shaft.  
Internal or External ROS:  
Last Units  
External RCA:  
EXTRN, then scrolling  
message, then last  
Units selected  
selected  
5.3 Connecting External Sensors  
1a. To toggle Lock On/  
Off  
Press and Hold  
Locked On  
2. Enter Setup  
Mode  
3. Enter  
selection of  
Mode  
Last Mode selected  
is displayed  
Plug sensor into  
Input socket  
S
In  
4. Select  
TOTAL  
Mode  
OR  
Repeat until  
TOTAL displayed.  
5. Save and  
advance  
Remote Optical Sensor  
(HHT20-ROS)  
Remote Contact Assembly  
(HHT13-RCA)  
(shown with optional 12 inch wheel)  
15  
8
11. Save and  
advance  
6.0 TACHometer Mode  
6.1 TACHometer Setup  
1. Turn  
Power  
ON  
Last Units selected are  
displayed  
12. Exit Setup –  
Ready to  
DONE,  
USE CONTACT TIP or  
[wheel selected],  
then Units selected  
measure  
1a. To toggle Lock On/  
Off  
Unit will remember these settings (including lock on/off) even if turned off  
and back on.  
Press and Hold  
Locked On  
2. Enter  
Setup  
7.2 RATE Operation  
Measure  
OR  
Mode  
3. Enter  
selection  
of Mode  
Last Mode selected is  
displayed  
Press and hold  
Lock on  
Recall Max  
Recall Min  
Max Speed  
Min Speed  
4. Select  
TACH  
OR  
Repeat until TACH  
displayed  
Mode  
5. Save and  
advance  
If unit Locked  
on:  
Resets Max/Min  
6. Enter  
selection  
of Units  
RPS, RPM or RPH  
Power Off  
OR Automatic after 90 seconds  
if unit not Locked on  
9
14  
7. Select Units  
OR  
Repeat until  
desired Units  
displayed  
RATE Setup (continued):  
6. Enter selection  
of Units  
Rotational: C RPS,  
C RPM or C RPH  
8. Save and  
advance  
Linear: IPS, IPM, IPH, FT/S, FT/M, FT/H, YPS, YPM,  
YPH,MPH,CM/S,CM/M,CM/H,M/SEC,M/MIN,M/H  
7. Select Units  
OR  
Repeat until  
desired Units  
displayed  
9. Enter selection  
of number of  
NONE, 1, 2 or 3  
decimal places  
8. Save and  
advance  
OR  
10. Select decimal  
places  
OR  
Repeat until  
desired decimal  
places displayed  
Rotational Units Linear Units  
Only for Linear Units:  
8a. Enter  
selection of  
Last Wheel  
selected is  
displayed  
11. Save and  
advance  
Wheel  
8b. Select  
Wheel  
OR  
Toggles  
between 10CM  
and 12IN  
12. Exit Setup –  
Ready to  
DONE, then Units  
selected  
measure  
8c. Save and  
Advance  
Unit will remember these settings (including lock on/off) even if turned off  
and back on.  
9. Enter selection  
of number of  
NONE, 1, 2 or 3  
decimal places  
10. Select decimal  
places  
Repeat until  
desired decimal  
places displayed  
OR  
13  
10  
6.2 TACHometer Operation  
7.0 RATE Mode  
NOTE: External Remote Contact Assembly (HHT13-RCA) must be  
Measure  
OR  
inserted into input socket.  
7.1 RATE Setup  
Press and hold  
Lock on  
1. Turn  
Power  
ON  
EXTRN, then scrolling  
message, then last Units  
selected  
Recall Max  
Recall Min  
Max Speed  
Min Speed  
1a. To toggle Lock  
On/Off  
Press and Hold  
Locked On  
2. Enter  
Resets Max/Min  
If unit Locked  
on:  
Setup  
Mode  
3. Enter  
Last Mode selected is  
displayed  
Power OFF  
OR Automatic after 90 seconds  
if unit not Locked on  
selection  
of Mode  
4. Select  
OR  
Toggles between  
RATE and TOTAL.  
Select RATE.  
RATE  
Mode  
5. Save and  
advance  
11  
12  

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