7
voltage to avoid electric shock or personal
injury.
Measure the known voltage or current before
use to ensure that the instrument functions
well.
DC current measurement
1. Disconnect the circuit to be tested;
2. Turn the knob to “A
⎓
” and select the appropriate
range;
Note:
If the value of current is unknown, use the
maximum measurement position (10A) and reduce
the range until proper readings are obtained.
3. If the current to be measured is less than 200mA,
insert the red test lead into the “
” socket. If the
current is between 200mA and 10A, insert the red test
lead into the “10A’’ socket, insert the black probe in
“COM” socket;
4. Connect the red and black test leads in series to
the circuit, then turn on the circuit power supply;
Note:
For 10A measurements, only take readings for
up to 10 seconds and allow 15 minutes between tests.
This prevents the device from overloading and
overheating.
When testing the current, there must be a load in the
circuit. Do not connect the multimeter in series with
