Tenma 72-7730A - Measuring Current

32
B. Measuring Current
Warning
If the fuse burns out during measurement, the Meter
may be damaged or the operator may be hurt.
To avoid possible damage to the Meter or to the
equipment under test, check the Meterís fuses before
measuring current. Use proper terminals, function,
and range for the measurement. Never place the test
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 40000µA ,
or for current above 40000µA.
(72-7730A is 20000µA.)
1.
2.
3.
A
µA
mA
mA
Model 72-7730A/72-7732A: OPERATING MANUAL