Chapter 4 Settings and Test
39
Figure 4-6-5 Test abnormal
If test failed or abnormal, alarm LED turn to red on the front panel. The buzzer gives three sounds,
and ALARM light port gives FAIL signal.
1) Abnormal protection will occur in the following cases:
a. GB clamp open circuit or ground bond resistance is too high during GB testing.
b. DUT Insulation failure during IR or ACW/DCW.
2) Measurement Judgement:
a. For breakdown current upper limit during ACW/DCW. testing, judge the measurement at
any time. For ground resistance upper limit during GB testing, judge the measurement at
any time.
b. For IR, give the judgement results approaching the complete testing
4.6.2 Compensation
1) Purpose
To eliminate the effects caused by the test wires or non-standard measurement conditions
and other factors to achieve high accuracy.
2) Settings
See 7.1 Specifications range of compensation value.
3) Wiring
a)Connect GB clamp with the ground terminal of the test box. Keep return terminal in
short circuit
b) Remove DUT from the test box. Keep high voltage terminal in open circuit.
4) Getting compensation value
This AN9640BV3(F)series analyzer provides two compensation methods:
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