Service Information
Performance Tests
7
Testing the Voltage Functions
The tests in this section check the following voltage functions:
•
Automatic selection of ac or dc voltage mode
•
Correct operation of the hazardous voltage indicator
•
Correct operation of the HOLD function
Perform the tests as follows:
1.
Set the calibrator to the T5-600 or T5-1000 test voltage given in Table 2.
2.
Apply the voltage to the tester. Verify that the tester reads within the display limits shown.
3.
Apply the voltages and verify the tester’s readings for the steps in Tables 3 and 4.
Table 2. AC Voltage Test
T5-600
T5-1000
Calibrator Output
T5-600 Display Limits
(AC annunciator ON)
Calibrator Output
T5-1000 Display Limits
(AC annunciator ON)
600 V, 60 Hz
589 to 611
1000 V, 60 Hz
983 to 1017
Table 3. DC Voltage Tests
T5-600
T5-1000
Step
Calibrator Output
T5-600 Display Limits
(DC annunciator ON)
Calibrator Output
T5-1000 Display Limits
(DC annunciator ON)
1
600 V dc
593 to 607
1000 V dc
989 to 1011
2
-60 V dc
-58 to -62
-100 V dc
-98 to -102
3
1.0 V dc
1
±
1*
1.0 V dc
1
±
1*
4
-1.0 V dc
-1
±
1*
-1.0 V dc
-1
±
1*
*
Verify that the ac annunciator is OFF.
Table 4. Hazardous Voltage LED and HOLD Function Tests
Step
Calibrator Output
T5-600/T5-1000 Display Indicators
1
12 V, 60 Hz
Reading: 12
±
1
Hazardous voltage LED OFF
2
12 V, 60 Hz
Tap tester’s HOLD button
Reading: 12
±
1
Hazardous voltage LED OFF
HOLD indicator ON
3
+38 V dc
Reading: 12
±
1
Hazardous voltage LED ON
HOLD indicator ON
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