Omicron Lab CT Analyzer User Manual page 150

CT Analyzer User Manual
148
7. Use the CPOL polarity checker to check the polarity of the wiring (see
Figure 8-8 on page 147).
– If the CPOL detects the same signal characteristic at a test point, it
considers the polarity as OK, and lights up the green LED.
– If the signal characteristic is inverted, the CPOL considers the polarity not
OK, and lights up the red LED.
Warning: If you detect a wrong polarity in the signal path, stop the
measurement (see step 8) and turn off the CT Analyzer first. Only then
disconnect the terminals.
– If the CPOL does not detect any signal (for example, due to a too small
signal magnitude), both LEDs light up at the same time.
– If the wiring to be tested is open (disconnected or interrupted), the
CT Analyzer indicates by an intermittent beep sound that no output
current is flowing.
If you are in doubt whether your measurement is correct, you can confirm it
by reversing the probes of the CPOL. In that case, the other LED should light
up.
8. Stop the measurement by pressing the
Note: Please refer to the CPOL User Manual for detailed information about the
CPOL polarity checker.
key on the CT Analyzer again.
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