®
B. DC/AC Current Measurement
(See fi gure 3)
Before connecting the meter to the return circuit to be tested, cut off the current of the
circuit. If the fuse burns down during measurement, the meter may be damaged or the
operator himself may be hurt.
To measure current, do the following:
1. Insert the red test lead into the µA or A input terminal and the black test lead into the
COM terminal.
2. Set the rotary switch to µA, mA or A
3. The meter defaults to DC current measurement mode. To switch to AC current meas-
urement, press BLUE button.
4. Connect the test lead in serial to the circuit to be tested. The measured value shows
on the display.
5. Press Hz% to obtain the frequency and duty cycle value.
If the value of current to be measured is unknown, use the maximum measurement posi-
tion, and reduce the range step by step, until a satisfactory reading is obtained.
For the safety purpose, less than 10 seconds is for each measurement duration and keep
15 minutes duration for next measurement during the current measurement over 5A.
When current measurement has been completed, disconnect the connection between the
testing leads and the circuit under test, and remove the testing leads away from the input
terminals of the Meter.
C. Resistance Measurement
(see fi gure 4)
To avoid damages to the meter or to other devices under test, disconnect circuit power
and discharge all the high voltage capacitors before measuring resistance.
To measure connect the meter as follows:
1. Insert the red test lead into the
terminal and the black test lead into the COM
terminal.
2. Set the rotary switch to
measurement
3. Connect the test leads across with the object being measured. If there is lead on the
resistor, it is more convenient to use included multipurpose socket to carry on testing.
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