15
Note
When
Hz
measurement has been completed,
disconnect the connection between the testing
leads and the circuit under test.
D.
AC & DC Current Measurement
(see figure 9)
Warning
Never attempt an in-circuit current measurement
where the open-circuit voltage between the circuit
and ground is greater than 110V.
If the fuse burns out during measurement, the
Meter may be damaged or the operator himself
may be hurt. Use proper terminals, function, and
range for the measurement. When the testing
leads are connected to the current terminals, do
not parallel them across any circuit.
The
current
measurement
has
3
measurement
positions on the rotary switch:
A
, A
and mA
.
The A
has a 400.0 A and 4000 A range, with auto
ranging; the mA has a 40.00mA and 400.0mA range,
with auto ranging; A
position has a 4.000A and
10.00A range, with auto ranging.
To measure current, do the following:
1. Turn off power to the circuit. Discharge all
high-voltage capacitors.
2. Insert the red test lead into the
AmA
or
10A
terminal and the black test lead into the
COM
terminal.
Use the
10A
terminal and
A
range if the
current value to be tested is an unknown.
72-9375: OPERATING MANUAL
Содержание 72-9375
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