Digisnap Hdsa500 User User Manual

3/01  
FORM #310  
1. Features  
• Safety design conforming to the following  
provisions of IEC61010.  
• Overvoltage category III 300V, pollution degree 2,  
• Overvoltage category II 600V, pollution degree 2,  
• Data hold switch for easy reading in dimly light or  
hard-to-read locations.  
• “Sleep” .feature to extend battery life.  
• Beeper permits easy continuity check.  
• Provides a dynamic range of 4,000 counts  
full scale.  
OPERATING INSTRUCTIONS  
MODEL DSA-500  
DIGISNAP  
SNAP-AROUND  
• Uses shrouded transformer jaws to further  
improve safety.  
Transformer Jaws  
2. Safety Warnings  
• This instrument has been designed and tested  
according to IEC Publication 61010: Safety  
Requirements for Electronic Measuring  
Apparatus. This instruction manual contains  
warnings and safety rules which must be  
observed by the user to ensure safe operation  
of the instrument and retain it in safe condition.  
Therefore, read through these operating  
instructions before using the instrument.  
!
WARNING  
• Read through and understand instructions contained in this  
Data Hold  
Switch  
manual before using the instrument.  
Trigger  
• Save and keep the manual handy to enable quick reference  
whenever necessary.  
• Be sure to use the instrument only in its intended applications  
and to follow measurement procedures described in the manu-  
al.  
Function  
Selector  
Switch  
• Be sure to understand and follow all safety instructions con-  
tained in the manual.  
• Failure to follow the above instructions may cause injury,  
instrument damage and/or damage to equipment under test.  
Display  
!
The symbol indicated on the instrument means  
that the user must refer to related parts in the man-  
ual for safe operation of the instrument. Be sure to  
carefully read the instructions following each symbol  
in this manual.  
COM Terminal  
V/Ω Terminal  
!
DANGER is reserved for conditions and actions that are likely  
to cause serious or fatal injury.  
WARNING is reserved for conditions and actions that can  
!
cause serious or fatal injury.  
!
CAUTION is reserved for conditions and actions that can  
cause minor injury or instrument damage.  
!
DANGER  
• Never make measurement on a circuit with a voltage higher  
than 600 VAC/DC.  
A.W. SPERRY INSTRUMENTS INC.  
• Do not attempt to make measurement in the presence of  
flammable gasses, fumes, vapor or dust. Otherwise, the use  
of the instrument may cause sparking, which can lead to  
an explosion.  
®
The Professional’s Choice  
• Transformer jaws are made of metal and their tips are not  
insulated. Where equipment under test has exposed  
conductive parts, be especially careful to avoid the hazard of  
possible shorting.  
• Never attempt to use the instrument if its surface or your  
hand is wet.  
EMC (IEC61000-4-3):  
RF electromagnetic field<1V/m;  
total accuracy=specified accuracy  
RF electromagnetic field=3V/m;  
total accuracy=specified accuracy  
+2% of range  
• Do not exceed the maximum allowable input of any measure-  
ment range.  
• Never open the battery compartment cover when making  
measurement.  
• Operating System:  
Dual Integration  
• Display:  
Liquid crystal display (maximum count: 3999)  
• Low Battery Warning:  
BAT” is shown on the display  
• Overrange Indication:  
“OL” is shown on the display  
• Response Time:  
Approx. 2 seconds  
• Sample Rate:  
!
WARNING  
• Never attempt to make any measurement if any abnormal  
conditions are noted, such as broken case, cracked test leads  
and exposed metal part.  
Do not turn the function selector switch with plugged in test  
leads connected to the circuit under test.  
• Do not install substitute parts or make any modification to the  
instrument. Return the instrument to your distributor for repair  
or recalibration.  
• Do not try to replace the batteries if the surface of the  
instrument is wet.  
About 2.5 times per second  
• Temperature and Humidity for Guaranteed  
Accuracy:  
Always switch off the instrument before opening the battery  
compartment cover for battery replacement.  
23±5oC, relative humidity up to 85% without  
condensation  
!
CAUTION  
Make sure that the function selector switch is set to the  
Operating Temperature and Humidity:  
0~40 C, relative humidity up to 85% without  
condensation  
appropriate position before making measurement.  
˚
• Always make sure to insert each plug of the test leads fully  
into the appropriate terminal on the instrument.  
• Make sure to remove the test leads from the instrument before  
making current measurement.  
• Do not expose the instrument to the direct sun, extreme  
temperatures or dew fall.  
• Be sure to set the function selector switch to the “OFF” posi-  
tion after use. When theinstrument will not be in use for a long  
period of time, place it in storage after removing the battery.  
• Use a damp cloth and detergent for cleaning the instrument.  
Do not use abrasives or solvents.  
• Storage Temperature and Humidity:  
-20~60 C, relative humidity up to 85% without  
condensation  
˚
• Power Source:  
Two R03 or equivalent (DC1.5V) batteries  
• Current Consumption:  
Approx. 2.5mA max.  
• Sleep Function:  
Automatically powered down in about 10  
minutes after the last switch operation (power  
consumption in the sleep mode is about 20μA).  
3. Specifications  
Measuring Ranges and Accuracy (at 23±5˚C, 45-75% relative  
humidity)  
• Standards:  
IEC61010-1  
AC Current (A)  
Range  
40A  
400A  
Measuring Range  
0-39.99A  
0-399.9A  
Accuracy  
±2.0%rdg±6dgt  
(50/60Hz)  
CAT.III 300V, pollution degree 2  
CAT.II 600V, pollution degree 2  
IEC61010-2-031  
IEC61010-2-032  
• Overload Protection:  
AC current ranges: 480A AC/DC for 10sec  
AC Voltage (V) Auto-ranging  
Range  
400V  
600V  
Measuring Range  
0-399.9V  
150-599V  
Accuracy  
±2.0%rdg±5dgt  
(50/60Hz)  
AC voltage ranges: 720V AC/DC for 10sec  
Resistance ranges: 300V AC/DC for 10sec  
• Altitude up to 2000M:  
DC Voltage (V) Auto-ranging  
Range  
400V  
600V  
Measuring Range  
0-399.9V  
150-599V  
Accuracy  
Indoor use  
±1.5%rdg±5dgt  
• Withstand Voltage:  
3700VAC (RMS,50/60Hz) for 1 minute between  
electrical circuit and housing case  
Resistance (Ω/Continuity) Auto-  
ranging (Buzzer beeps below 50±35Ω)  
Range  
400Ω  
4000Ω  
Measuring Range  
0-399.9 Ω  
150-3999 Ω  
Accuracy  
• Insulation Resistance  
10MΩ or greater at 1000V between electrical  
circuit and housing case  
• Conductor Size:  
Approx. 30mm diameter max  
±2.0%±5dgt  
NOTE  
• Dimensions:  
184(L) x 44(W) x 27(D)mm  
• During current measurement, keep the transformer jaws fully  
closed. Otherwise, accurate measurement cannot be made.  
The maxi-mum conductor size is 30 mm in diameter.  
• When measuring a larger current, the transformer jaws may  
buzz. This does not affect the instrument's accuracy.  
• Weight:  
Approx. 190g (including batteries)  
• Accessories:  
Test leads  
Two R03 AAA batteries  
Instruction manual  
5-2 AC Voltage Measurement  
!
DANGER  
4. Preparation for Measurement  
4-1 Checking Battery Voltage  
• Never use the instrument on a circuit with a voltage higher  
than 600 VAC. Otherwise,electric shock hazard or damage to  
the instrument or the circuit under test may result.  
• Do not make measurement with the battery compartment  
cover removed.  
Set the function selector switch to any position  
other than “OFF”. When the display is clear without  
BAT” showing, proceed to measurement. When  
the display blanks or “BAT” is indicated, replaces  
the batteries according to the instructions described  
in section 7 (Battery Replacemen)t.  
˜
1. Set the function selector switch to the “600V”  
position.  
2. Plug the red test lead into the V/Ω terminal and  
the black test lead into the COM terminal.  
3. Connect the test lead prods to the circuit under  
test and take the reading on the display.  
5-3 DC Voltage Measurement  
NOTE  
The sleep feature automatically turns the instrument off in a cer-  
tain period of time after the last switch operation. Therefore, the  
display may be blank with the function selector switch set to a  
position other than “OFF”. To operate the instrument in this case,  
set the switch back to the “OFF” position, then to the desired  
position, or press any switch. If the display still blanks, the  
batteries are exhausted. Replace the batteries.  
!
DANGER  
• Never use the instrument on a circuit with a voltage higher  
than 600VDC. Otherwise,  
• electric shock hazard or damage to the instrument or the cir-  
cuit under test may result.  
• Do not make measurement with the battery compartment  
cover removed.  
4-2 Checking Switch Setting and Operation  
Make sure that the function selector switch is set  
to the correct position and the data hold switch is  
deactivated. Otherwise, desired measurement  
cannot be made.  
1. Set the function selector switch to the “  
position.  
5.Measurement  
5-1 AC Current Measurement  
2. Plug the red test lead into the V/Ω terminal and  
the black test lead into the COM terminal.  
3. Connect the test lead prods to the circuit under  
test and take the reading on the display.  
5-4 Resistance Measurement  
!
WARNING  
• Do not make measurement on a circuit with a voltage higher  
than 600 VAC. Otherwise, shock hazard or damage to the  
instrument or equipment under test may result.  
• Transformer jaw tips are designed to minimize the possibility  
of shorting conductors in the circuit under test. If equipment  
under test has exposed conductive parts, however, extra  
precaution should be taken to avoid possible shorting.  
• Do not make measurement with the battery compartment  
cover removed.  
!
DANGER  
• Always make sure that the circuit under test is powered off.  
• Do not make measurement with the battery compartment  
cover removed.  
1. Set the function selector switch to the “Ω/ )))”  
position.  
• Do not make current measurement with the test leads  
connected to the instrument.  
2. Plug the red test lead into the V/Ω terminal and  
the black te st lead into the COM terminal.  
3. Check that the display reads OL with the test  
lead prods shorted together, also check that the  
buzzer beeps and the display reads 0.  
4. Connect the test lead prods to the circuit under  
test and take the reading on the display. The  
buzzer beeps the reading is below 50±35 Ω.  
1. Set the function selector switch to the “40Ô or  
“400Ô position.  
2. Press the trigger to open the transformer jaws  
and clamp onto one conductor only.  
3. Take the reading on the display.  
Fig. 3  
Fig. 2  
NOTE  
• When shorting the test lead prods together, the display  
may show a very small resistance instead of “0”. This is the  
resistance of the test leads.  
• If one of the test leads has an open, the display reads “OL”.  
Incorrect  
Correct  
CAUTION  
Do not mix new and old batteries  
Make sure to install battery in correct polarity as indicated inside  
the battery compartment.  
6. Other Functions  
6-1 Sleep Function  
NOTE  
The instrument still consumes small amount of battery power in  
the sleep mode. Make sure to set the function selector switch to  
the “OFF” position after use.  
When “BAT” is shown on the display, replace the  
batteries. Note that when the battery is completely  
exhausted, the display blanks without “BAT” shown.  
(1) Sleep Mode  
This is a function to prevent the instrument from  
being left powered on in order to conserve battery  
life. This function causes the instrument to automati-  
cally enter the sleep (powered down) mode about  
10 minutes after the last switch or button operation.  
To exit the sleep mode, turn the function selector  
switch back to “OFF”, then to any other position, or  
press any button.  
1 Set the function selector switch to the “OFF”  
position.  
2 Unscrew and remove the battery compartment on  
the bottom of the instrument.  
3 Replace the batteries observing correct polarity.  
Use two new R03 or equivalentbatteries.  
4 Mount and screw the battery compartment cover.  
(2) How to disable the sleep mode  
To disable the sleep mode, Power the instrument on  
with the data hold switch pressed. “P.OFF” is shown  
on the display for about 3 seconds after  
the instrument is powered on.  
To enable the sleep mode, power the instrument off,  
then power it on without pressing the data hold  
switch.  
6-2 Data Hold Function  
Battery Compartment  
This is a function used to freeze the measured  
value on the display. Press the data hold switch  
to freeze the reading. The reading will be held  
regardless of subsequent changes in input ‘H’ is  
shown on the upper left corner of the display while  
the instrument is in the data hold mode.  
To exit the data hold mode, press the data hold  
switch again.  
2XRo3 or 1.5V AAA  
NOTE  
If the instrument in the data hold mode enters the sleep mode,  
the data hold mode will be cancelled.  
7. Battery Replacement  
To avoid electric shock hazard, make sure to set the  
function selector switch to “OFF” and remove the  
test leads from the instrument before trying to  
replace the batteries.  
LIFETIME LIMITED WARRANTY  
The attention to detail of this fine snap-around  
instrument is further enhanced by the application of  
A.W. Sperry’s unmatched service and concern for  
detail and reliability. These A.W. Sperry’s snap-  
arounds are internationally accepted by craftsmen  
and servicemen for their unmatched performance.  
All A.W. Sperry’s snap-around instruments are  
unconditionally warranted against defects in materi-  
al and workmanship under normal conditions of  
use and service; our obligations under this warranty  
being limited to repairing or replacing, free of  
charge, at A.W. Sperry’s sole option, any such  
A.W. Sperry snap-around instrument that malfunc-  
tions under normal operating conditions at  
rated use 1.  
REPLACEMENT PROCEDURE  
Securely wrap the instrument and its accessories in  
a box or mailing bag and ship prepaid to the  
address below. Be sure to include your name and  
address, as well as the name of the distributor, with  
a copy of your invoice from whom the unit was pur-  
chased, clearly identifying the model number and  
the date of purchase.  
A.W. SPERRY INSTRUMENT INC.  
ATTN: Customer Service Dept.  
245 Marcus Boulevard  
Hauppauge, N.Y. 11788-2075  
1. Warranty is not applicable if the instrument has  
been: misused, abused, subjected to loads in  
excess of specifications, has had unauthorized  
repair or has been improperly assembled or  
used.  
*Note: Recommended calibration interval should not  
exceed one year. Calibration service charges are  
not covered under terms and conditions of warranty.  
245 Marcus Blvd., Hauppauge, NY 11788  
1-800-645-5398 or 631-231-7050  
Fax: 631-434-3128  

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