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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 ", or in AC range press EXIT
for two seconds and chose "AC+DC"
3.
Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
4.
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.
5.
Read the mV voltage in the main display.
6.
With AC mV in the main display, press EXIT for 2 seconds to measure AC+DC.
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.
6
EX542-en-GB_v1.5 06/15
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