Datasheet

32
Model UT71A/B: OPERATING MANUAL
B. Measuring Currents
Warning
If the fuse burns out during measurement, the Meter
may be damaged or the operator himself may be hurt.
To avoid possible damage to the Meter or to the
equipment under test, check the Meter’s fuses before
measuring current. Use proper terminals, function,
and range for the measurement. Never place the
testing leads in parallel with any circuit or component
when the leads are plugged into the current terminals.
Figure 3-2. Currents Measurement
To measure AC or DC current, set up the Meter as
Figure 3-2 and proceed as follows:
Turn off power to the circuit. Discharge all high-
voltage capacitors.
Insert the red test lead into the mAµA or A terminal
and black test lead into the COM terminal.
If you are using the A terminal, set the rotary switch
to .If you are using mAµA terminal, set the rotary
switch to for currents below 20000µA , or
(UT71A) or (UT71B) for current
above 20000µA.
1.
2.
3.
A
µA
mA
mA