TESTBOY 20 Plus Bedienungsanleitung Seite 22

Operation
When carrying out the cable break detection, if the V~ LED does not illu-
minate, a dangerous high voltage (> 33 V AC or 70 V DC) may neverthe-
less be present. The non-contact sensor can only detect voltage gener-
ated by sufficiently strong electric fields from power sources (grids,
> 110 V AC). If the field strength is low, the instrument may not detect ap-
plied voltage and thus cannot locate the cable break correctly. If the in-
strument does not detect any existing voltage, this can be due to the fol-
lowing factors, amongst other things:
- Shielded wires/cables
- Thickness and type of insulation
- Distance from the voltage source
- Condition of the Tester and Batteries
WARNING
Exercise caution at voltages above 30 V, as there is a risk of
electric shock.
WARNING
The non-contact cable break detection function is not suitable
for the detection of hazardous line voltage.
CAUTION
Before touching conductive parts the absence of hazardous
voltage must be checked with the two-pole direct contact meas-
urement of other equipment.
22
®
Testboy 20 Plus