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mV VOLTAGE MEASUREMENTS
CAUTION: Do not measure mV voltages if a motor on the circuit is being switched ON or OFF.
Large voltage surges may occur that can damage the meter.
1.
Set the function switch to the mV position.
2.
Press the MODE button to indicate "DC" or "AC"
3.
In AC mode, press and hold EXIT for two seconds to select "AC+DC"
4.
Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
5.
Touch the black test probe tip to the negative side of the circuit. Touch the red
test probe tip to the positive side of the circuit.
6.
Read the mV voltage in the main display.
DC CURRENT MEASUREMENTS
CAUTION: Do not make 20A current measurements for longer than 30 seconds. Exceeding 30
seconds may cause damage to the meter and/or the test leads.
1.
Insert the black test lead banana plug into the negative COM jack.
2.
For current measurements up to 4000µA DC, set the function switch to the
µA position and insert the red test lead banana plug into the µA/mA jack.
3.
For current measurements up to 400mA DC, set the function switch to the
mA position and insert the red test lead banana plug into the µA/mA jack.
4.
For current measurements up to 20A DC, set the function switch to the
10A/HZ/% position and insert the red test lead banana plug into the 10A jack.
5.
Press the MODE button to indicate "DC" on the display.
6.
Remove power from the circuit under test, then open up the circuit at the
point where you wish to measure current.
7.
Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.
8.
Apply power to the circuit.
9.
Read the current in the display.
AC+DC
In the VAC, mV(AC), 10A(AC), mA(AC) and uA(AC) measurement modes, press the EXIT button
for 2 seconds to enter AC+DC test mode. The LCD shows the AC+DC icon. Press EXIT to exit this
mode.
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MG302-en-GB_v2.4 6/16
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