APPA 501 - Page 8

Measuring AC and DC Current
• Always use proper terminals, switch position, and
range for measurements.
• To avoid possible electric shock or personal injury,
never attempt an in-circuit current measurement where
the open circuit potential to earth is greater than
1000V.
• Only replace the blown fuse with the proper rating as
specified in this manual.
WARNING
!
• Replace the fuse as soon as the indicator (FUSE)
appears.
To measure current, you must break the circuit under
test, then place the meter in series with the circuit.
The ranges of measuring current are 40mA, 400mA,
4A and 10A. AC current is displayed as an rms value.
Insert the black lead into the COM terminal. For
currents less than 400 mA, insert the red lead into the
mA terminal. For currents above 400 mA, insert the red
lead into the A terminal.
You can press the function (yellow) button to select
current measurement function.
CAUTION
!
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