Amprobe VPC-20N Voltage-Continuity-Tester User Manual

Amprobe Measuring instruments

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DIGITAL VOLTAGE &

CONTINUITY TESTER MODEL

VPC-20N

Instruction Manual

Safety Information

l

Never use the tester if it or its test leads appear damaged.

l

Never apply more than 600V DC or 600V AC rms. between any

terminal and earth ground

l

When using the probes, keep your fingers behind the finger

guards on the probes.

l

Turn off power to the circuit under test before cutting, unsoldering,

or breaking the circuit. Small amounts of current can be
dangerous.

l

Use caution when working with voltages above 60V DC or 30V AC

rms. Such voltages pose a shock hazard.

Automatic Operation
The tester automatically turns on when you short the two test probes or
place the probes across a complete circuit.
When turned on, the tester powers up in continuity mode. If a DC or AC
voltage greater than about 4.0V is present across the inputs, the tester
switches to DC or AC voltage mode.
The tester automatically shuts down after approx. 4 minutes of
inactivity.

Continuity testing
Turn off circuit power before testing.
Beeper indicates shorts lasting 1 ms or longer.

SHORT 10KW

OPEN

Measuring Voltage
Refer to Automatic Selection

DC Voltage (Volts DC>4.0V) AC Voltage (Volts DC>4.0V)
600V DC maximum

600VAC maximum
50Hz to 400Hz

12V DC

220V AC

Non-contact AC Voltage (NCV) detection operating instructions

WARNING: Risk of Electrocution. High-voltage circuit, both AC and

DC, are very dangerous and should be measured with great care.

WARNING: Risk of Electrocution. Before using to check for voltage

in an outlet, always test the Voltage Tester on a known live circuit to

verify that the Voltage Tester is working properly.

WARNING: Risk of Electrocution. Keep hands and fingers on the

body of the probe and away from the probe tip. Don’t touch

conductor.

1.

To check for AC voltage, assure the bottle shaped protrusion of

the fixed probe, see figure below, is in close proximity to the hot

conductor. The LED in the fixed probe will illuminate.

2.

To check for the presence of AC voltage at an outlet, using the

NCV LED, insert either probe tip into the outlet’s hot side. If the

black probe is used only the NCV LED will illuminate. If the fixed

probe is inserted not only will the NCV LED illuminate but some

of the LEDs on the front of the instrument will illuminate also. In

this application these LEDs won’t indicate the correct voltage

and should be ignored.

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