Insulation Resistance Testing (R)
This mode measures insulation resistance at the selected voltage to
provide an instantaneous spot reading. Final test result is given
sequentially with the corresponding leakage current and capacitance
value.
Test Current measurement (I)
This mode measures insulation at the selected voltage to provide
an instantaneous spot reading, but displays leakage current
value on the digital display. (N.B. The analogue scale always
displays resistance). Final test result is given sequentially with the
corresponding resistance and capacitance value.
Fault Conditioning (Burn)
This feature is used to carry out continuous testing under
breakdown conditions.
General Notes:
1) A capacitance value reading is only available if the test has run
for more than one minute, and the reading was not over-range.
2) Internal discharge resistors are automatically selected :-
-
At the end of a test.
-
If the instrument is switched off.
-
If an internal error is detected.
Any voltage remaining on the terminals at the end of a test,will
be displayed until it has decayed to less than 50 V. During a test
output terminal voltage is displayed, together with flashing high
voltage symbols, and the flashing red LED.
Test Mode Summary
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