Ac/Dc Current Measurements; Resistance Measurements - ONNLINE 920 Manual

AC/DC CURRENT MEASUREMENTS

CAUTION: Do not make 10A 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 6000µA AC/DC, set the
function switch to the µA position and insert the red test lead
banana plug into the µA/mA jack,press mode button to select
AC or DC.
3. For current measurements up to 600mA DC, set the function
switch to the mA position and insert the red test lead banana
plug into the µA/mA jack ,press mode button to select AC or
DC.
4. For current measurements up to 10A DC, set the function
switch to the 10A position and insert the red test lead banana
plug into the 10A jack, press mode button to select AC or DC.
5. Remove power from the circuit under test, then open up the
circuit at the point where you wish to measure current.
6. 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.
7. Apply power to the circuit and read the current in the display.

RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the
unit under test and discharge all capacitors before taking
any resistance measurements. Remove the batteries and
unplug the line cords.
1. Set the function switch to the Ω CAP
2. Insert the black test lead banana plug into the negative
COM jack. Insert the red test lead banana plug into the
positive V jack.
3. Press the MODE button to indicate "Ω" on the display.
4. Touch the test probe tips across the circuit or part under test.
It is best to disconnect one side of the part under test so
the rest of the circuit will not interfere with the resistance
reading.
Side 8
position.
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