Sonel PAT-1 - Compensation of the Test Leads Resistance Auto Zeroing

OPERATING MANUAL PAT-1, PAT-2, PAT-2E, PAT-10 version 1.02
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Correct result. The result
of each single test of the
sequence is positive.
Green LEDs of PASS
indication are on.
Incorrect result. One or
more of the measured
parameters are above the
permissible threshold.
Red LEDs of FAIL
indication are on.
The result is displayed on screen until ESC button is pressed, another test is run by pressing
START/STOP button, measurement mode is changed, settings mode is activated or the test result is
stored in the memory.
Additional information displayed by the tester
>300ms
Measuring range is exceeded.
Swapped L and N.
Lack of L and/or N lines continuity.
Shorted L and N.
More messages displayed by the tester are described in section 2.1.2 of this manual.
Notes:
- The tested device must be turned on.
- Switch on PRCD immediately after it trips.
- Unlike the IEC test, the measurement of PRCD can be limited to the PRCD trip time test only (and
exclude all other component measurements including polarity check).
4.7 Compensation of the test lead’s resistance (auto-zeroing)
The tester is factory calibrated to work with the test lead and with the probe supplied with it, as stand-
ard. Other test leads (probes, crocodile clips) can be used as well. Resistance of non-standard test