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Dc Voltage Measurements - Craftsman 82140 Owner's Manual

Digital multimeter; voltage detector
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J WARNING:
Risk of electrocution.
High-voltage
circuits, both AC and DC, J
are very dangerous and should be measured with great care.
I
1. ALWAYS turn the function switch to the OFF position when the meter is
not in use.
2. If "OL" appears in the display during a measurement,
the value exceeds
the range you have selected. Change to a higher range.
NOTE: On some low AC and DC voltage ranges, with the test leads not
connected to a device, the display may show a random, changing reading.
This is normal and is caused by the high-input sensitivity. The reading will
stabilize and give a proper measurement
when connected to a circuit.
DC VOLTAGE MEASUREMENTS
J
AUTION:
Do not measure DC 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 highest V DC
_---
position
2.
Insert the black test lead banana plug into the
_
I
negative (COM) jack.
• ................
Insert the red test lead banana plug into the
_')i,
positive (V) jack.
3.
Touch the black test probe tip to the negative side
_/i
of the circuit.
/_j _t'_/.
Touch the red test probe tip to the positive side of
.......
the circuit.
4.
Read the voltage in the display. Reset the
function switch to successively
lower V DC
positions to obtain a higher resolution reading.
The display will indicate the proper decimal point and value. If the
polarity is reversed, the display will show (-) minus before the value.
10
I

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82174