Checking The Dc Voltage; Checking The Ac Voltage; Phase Test - Testboy Profi III LED Operating Instructions Manual

Checking the DC voltage

When placing the probes on an AC voltage within the rated voltage range,
one of the lower (12V +~-) LED's and the LED arranged above it illuminate
according to the voltage applied. The lower LED's indicate the polarity at the
test probes in accordance with the identification! (+,−)
If the threshold value of 35 V is exceeded, a signal sounds and lucid vibra-
tion can be felt. This indicates a general hazardous voltage!

Checking the AC voltage

When placing the probes on an AC voltage within the rated voltage range,
both of the lower (12 V +~-) LED's and the LED's arranged above them illu-
minate according to the voltage applied. Simultaneous illumination of the
lower LED's indicates AC voltage (~).
If the threshold value of 35 V is exceeded, a signal sounds and lucid vibra-
tion can be felt. This indicates a general hazardous voltage!

Phase test

Contact a conductor with the test probe "L2". If a phase is applied,
min. 100 V~, the "<L"-LED illuminates!
For determining the phase conductor, the perceptibility of the indication can
be impaired, e.g. by insulating fixtures to protect against direct contact in ad-
verse positions, for example on wooden ladders or insulating floor coverings,
of a voltage not earthed or also in adverse lighting conditions.
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Testboy Profi III LED
Operation
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