Insulation Testers
Performance Tests
15
Insulation Resistance Accuracy Tests
To test the insulation resistance accuracy, complete the test steps in Ta b l e 5 with this
procedure:
1. Connect the DUT
INSULATION and COM terminals to the Fluke 5320A High Resistance
output terminals.
2. Set the Fluke 5320A to the high resistance source function (H).
3. Turn the DUT rotary function switch to an
INSULATION function.
4. Select the DUT insulation voltage range per Ta b l e 5 .
5. Apply the Fluke 5320A output called out in Ta b le 5 .
6. Press T on the DUT.
7. Make sure that the DUT reads within the display reading limits listed in Ta b l e 5 .
Table 5. Insulation Resistance Accuracy Test
Step
Insulation Voltage
Range
Applied Display Units
Display Reading Limits
1503 1507/1508
1 1000 V 9 GΩ
MΩ
N/A 7.8 to 10.2
2 1000 V 1.9 GΩ 1862 to 1938 N/A
3 1000 V 1 MΩ 0.5 to 1.5 0.5 to 1.5
4 1000 V 49 MΩ 47.5 to 50.5 47.8 to 50.2
5 1000 V 60 MΩ 58.3 to 61.7 58.6 to 61.4
6 500 V 500 kΩ 0.44 to 0.56 0.44 to 0.56
7 250 V 250 kΩ N/A 0.20 to 0.30
8 100 V 100 kΩ N/A 0.05 to 0.15
9 50 V 50 kΩ N/A 0.0 to 0.10
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