Insulation Function, Source Voltage Accuracy Test - Fluke 1587 Calibration Manual

1587/1577
Calibration

Insulation Function, Source Voltage Accuracy Test

The following test verifies the accuracy of the source voltage for the insulation
function.
1. Connect the output of the HV Probe to the V – Com inputs on the Test DMM and
turn the rotary switch to E.
2. Connect the input of HV Probe to the INSULATION output terminals on the
UUT as shown in Figure 7.
3. Set the rotary switch to INSULATION.
4. Refer to Table 5, and complete steps 1 through 5. For each step, select the
specified range on the UUT, press t, and verify that the voltage readings
on both the UUT (lower right hand corner) and the DMM are within the limits
shown in the table.
UUT
HOLD MIN MAX
LO
TEST
Step Function
1 Insulation
2 Insulation
3 Insulation
4 Insulation
5 Insulation
20
To prevent damage to the Test DMM use a HV Probe
(Divider) with the Test DMM when testing the 1000V
range of the UUT.
INSULATION
Figure 7. Source Voltage Accuracy Test
Table 5. Insulation Mode, Source Voltage Accuracy Tests
Range Test DMM Display Reading
500 V 500.0 to 600.0
1000V 1000.0 to 1200.0
50V 50.0 to 60.0
100V 100.0 to 120.0
250V 250.0 to 300.0
WCaution
1587 Only
Test DMM
ebp06f.eps
UUT Display Reading
500 to 600
1000 to 1200
50 to 60
100 to 120
250 to 300