Ac Voltage Measurements - PeakTech 3320 Mode D'emploi

5.3. DC Voltage measurements
Caution:
Do not measure DC voltages if a motor on the circuit is being switched
ON or OFF. Large voltage surges may occur during the ON or OFF
operations that can damage the meter.
1. Set the function switch to the "V ..." position.
2. Insert the black test lead into the negative COM jack and the red
test lead into the positive V/-jack.
3. Touch the test probe tips to the circuit under test. Be sure to observe
the correct polarity (red lead to positive, black lead to negative).
4. Read the voltage in the display. The display will indicate the proper
decimal point and value. If the polarity is reserved, the display will
show (-) minus before the value.

5.4. AC Voltage measurements

Warning:
Risk of Electrocution. The probe tips may not be long enough to contact
the live parts inside some 230 V outlets for appliances because the
contacts are recessed deep in the outlets. As a result, the reading may
show 0 volts when the outlet actually has voltage on it. Make sure the
probe tips are contacting the metal contacts inside the outlet before
assuming that no voltage is present.
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