Automatic Operation; Voltage Measurement - Amprobe VPC-12 Mode D'emploi

3. Test on a known live source within the rated AC/DC voltage range of
the instrument, both before and after use to ensure the instrument is in
good working condition.
4. Indicates hazardous voltage levels if the LED turns on.
5. Do not touch voltages >30 V AC rms, 42 V AC peak, or 60 V DC. These
voltages pose electrical shock hazards. Keep fingers behind the finger
guard on the probe.

Automatic Operation

The tester automatically turns on when you place the probes across a
complete circuit. The tester selects AC or DC voltage or continuity mode
based on the resistance or voltage between the probes. The tester
automatically turns off when you remove the probes from the circuit being
measured.

Voltage Measurement

Connect test leads across the source or load to be measured. The LEDs turn
on at between 70% and 100% of their rated voltages.
Note: The maximum testing voltage of this product is 600Vac/220Vdc. It will
indicate 600Vac/220Vdc LED even if the testing voltage is greater than this
limit. In this case, users should beware of electric shock, and operate with
care or stop testing.
AC Voltage: 600V rms maximum, 50 to 60Hz
Figure 1: AC Voltage measurement
24 V AC
24 V AC
24 V AC
24 V AC
6
Figure 2: Check for voltage
presence in electrical outlets