150X Series
Calibration Manual
ii
Insulation Resistance Accuracy Tests ....................................................... 18
Full-Scale Insulation Resistance Accuracy Test, 1000 V Range
(Models 1507 and 1508) ........................................................................... 19
5 % of Full Scale, Insulation Resistance Accuracy Test, 50 V Range
(Models 1507 and 1508) ........................................................................... 20
Insulation Function, External Sense.......................................................... 20
Source Voltage Accuracy Test, "R" Nominal ........................................... 21
Source Voltage Accuracy Test, Open Circuit ........................................... 22
I Nominal Test: ......................................................................................... 23
I Limit Test: .............................................................................................. 25
Testing the “
Ω
” Function .............................................................................. 25
Earth Bond Resistance Accuracy Tests..................................................... 25
2-Ohm Output Current Test ...................................................................... 26
Open Circuit Voltage Test ........................................................................ 27
Calibration Adjustment...................................................................................... 27
Calibration Adjustment Counter.................................................................... 27
Calibration Adjustment Password ................................................................. 27
Changing the Password ............................................................................. 27
Restoring the Default Password ................................................................ 28
Keys Used in the Calibration Steps ................................................................... 29
Calibration Adjustment Procedure ................................................................ 29
Service and Parts................................................................................................ 31
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