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B. DC or AC Current Measurement
(See figure 4)
(Figure 4)
Warning
Before connecting the meter in series with the circuit under test, be sure power to the circuit is off to avoid the
possibility of arcing.
If the fuse burns out during measurement, the Meter may be damaged and there is risk of personal injury to the
operator. Use proper terminals, function, and range for the measurement. When the test leads are connected to the
current terminals, do not parallel them across any circuit.
To measure current, do the following:
1. Insert the red test lead into the
μA mA
terminal andthe black test lead into the
COM
terminal.
2. Set the rotary switch to an appropriate measurement position in
μA
,
mA
or
A
, press SELECT button to select AC or
DC measurement mode.
3. Connect the test leads in series with the object being measured. The measured value shows on the display. AC measurement
displays True RMS value.
4. Press
AC/AC+DC
button to measure AC+DC current’s true RMS
Note
• If the value of current to be measured is unknown, use the maximum measurement position, and reduce the range step by
step until a satisfactory reading is obtained.
• For safety sake, each measurement time of high current (>5A) should be less than 10 seconds and the interval time between
2 measurements should be greater than 15 minutes.
• When current measurement is complete, disconnect the test leads from the circuit under test. Disconnect the test leads from
the input terminals on the meter.
