Troubleshooting; Errors; Voltage Present Before An Insulation Measurement; Range Exceeded During An Insulation Measurement - AEMC 6526 User Manual

5.2 Troubleshooting

5.2.1 Errors

During instrument operation, errors may be displayed on the LCD. The causes of any errors must be corrected before the
instrument can resume normal operation.

5.2.1.1 Voltage present before an insulation measurement

5.2.1.2 Range exceeded during an insulation measurement

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DAR
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Before taking an insulation measurement, the instrument measures voltage on the
system under test. If it detects voltage in excess of 25V and you attempt to take
a measurement, the instrument displays the message shown to the left, and no
measurement is taken.
You must eliminate the voltage to resume taking the measurement.
If during an insulation measurement the value to be measured exceeds the mea-
surement range (which depends on the instrument and the test voltage), the instru-
ment reports this condition. For example, the screen to the left is displayed when
the range is exceeded on the Model 6532 while measuring in the 100V range.
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With the Models 6526 and 6532, if this condition occurs during a DAR or PI mea-
surement, the instrument interrupts the measurement and displays the screen
shown to the left.
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