Operating Instructions
WARNING
: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous
and should be measured with great care.
1.
ALWAYS turn the function switch to the
OFF
position when the meter is not in use.
2.
If
“OL” appears in the display during a measurement, the value exceeds the range you
have selected. Change to a higher range.
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 that can damage the meter.
1.
Set the function switch to the green
VDC
position.
2.
Insert the black test lead banana plug
into the negative
COM
jack.
Insert the red test lead banana plug into
the positive
V
jack.
3.
Touch the black test probe tip to the
negative side of the circuit.
Touch the red test probe tip to the positive
side of the circuit.
4.
Read the voltage in the display.
AC VOLTAGE (FREQUENCY, DUTY CYCLE) MEASUREMENTS
WARNING:
Risk of Electrocution. The probe tips may not be long enough to contact the live
parts inside some 240V 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 touching the metal contacts inside the outlet before assuming
that no voltage is present.
CAUTION:
Do not measure AC voltages if a motor on the circuit is being switched ON or
OFF. Large voltage surges may occur that can damage the meter.
1.
Set the function switch to the green
VAC/Hz/%
position.
2.
Insert the black test lead banana plug into
the negative
COM
jack.
Insert red test lead banana plug into the
positive
V
jack.
3.
Touch the black test probe tip to the
neutral side of the circuit.
Touch the red test probe tip to the
“hot” side
of the circuit.
4.
Read the voltage in the display.
5.
Press the
MODE
button to indicate “
Hz
”.
6.
Read the frequency in the display.
7.
Press the
MODE
button again to indicate “
%
”.
8.
Read the % of duty cycle in the display.
