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Craftsman 82139 Owner's Manual: Resistance Measurements; Continuity Check

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RESISTANCE
MEASUREMENTS
I
ARNING: TO avoid electric shock, disconnect
power to the unit
I
under test and discharge all capacitors before taking any resistance
I
measurements.
Remove the batteries and unplug the line cords.
1. Set the function switch to the £-2position.
2.
Insert the black test lead banana plug into the negative
(COM) jack and the red test lead banana plug into the
positive £-2 jack.
3.
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.
4.
Read the resistance in the display. The display will indicate the proper
decimal point, value and symbol.
CONTINUITY
CHECK
I WARNING:
To avoid electric shock, never measure continuity
on
I
circuits or wires that have voltage on them.
I
1. Set the function switch to the-)l-o)))position.
2.
Insert the black lead banana plug into the negative (-)
jack (COM) and the red test lead banana plug into the
positive (+) jack (£-2).
3.
Press the _-))) button until the "))) symbol appears in
the display.
4.
Touch the test probe tips to the circuit or wire you wish
to check.
5.
If the resistance is less than approximately
30£-2,the
audible signal will sound. The display will also show the actual
resistance.
14

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