Ac Current Measurement - UNI-T UT33A Operating Manual

Model UT33A: OPERATING MANUAL
Measurement Operation (6)
D. AC Current Measurement (see figure 4)
Warning
Never attempt an in-circuit current measurement where the open-circuit voltage
between the circuit and ground is greater than 500V.
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.
1. Turn off power to the circuit. Discharge all high-voltage capacitors.
2. Turn the rotary switch to suitable range, press SELECT to change from DC to AC
measurement.
V mA or 10A
3.
Insert the red test lead into the terminal and the black test lead
into the COM terminal.
4. Set the rotary switch to an appropriate measurement position in A range.
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