Diode Test; Non-Contact Voltage Testing - Voltcraft Vc331 Bedienungsanleitung

9.14 Diode test

WARNING: Never test on a live circuit. Remove all power from the cir-
cuit and discharge all capacitors before testing.
Forward test:
Reverse test:

9.15 Non-contact voltage testing

The non-contact voltage (NCV) detection function can detect AC voltage on con-
ductors without touching them.
Due to the high sensitivity sensor, static electricity or other sources of energy may
trigger the sensor. This is normal operation.
Risk of electric shock!
■
Before use, always test the voltage detector on a known live circuit
to ensure safe operation.
■
Insulation type, thickness, and distance from the voltage source
may affect detection.
■
Always verify measurements using test leads before touching po-
tentially energized circuits.
1. Set the rotary switch to:
2. Press the SELECT button until the display shows "
3. Connect the test leads to the input terminals:
- Black test lead to the negative input terminal: COM.
- Red test lead to the positive input terminal:
4. Touch the test probe tips across the diode under test.
à
Forward test voltages: will show on the display as a
voltage reading.
à
Reverse test voltages: will show on the display as "
à
A defective diode (interrupted): will show on the display
as " " .
5. Disconnect the test leads and switch the power OFF after
use.
.
".
.
".
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