Voltage Transformer
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If 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 or distorted, CPOL considers the polarity
not OK, and lights up the red LED.
If CPOL detects a signal that is too low, both LEDs light up at the same time.
Remedy: increase the signal magnitude.
If you are not quite certain whether your measurement is correct, you can
confirm it by reversing the probes of CPOL. In that case, the other LED should
light up.
The battery of CPOL
If the capacity of CPOL’s battery gets low, both LEDs start flashing
simultaneously. As long as the LEDs are flashing, CPOL’s battery provides
sufficient power to continue working. However, the battery should be changed
as soon as possible.
Never operate CPOL with an open battery compartment. A life-hazardous
voltage level may occur in the battery compartment if CPOL’s probe touches a
test point with high-voltage potential!
Note: If you detect a wrong polarity in the current path, turn off CPC 100 first,
and only then disconnect the terminals.
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