1. Check the 9-volt battery by setting the ON-OFF switch to ON, if the
battery is weak, a + - sign will appear on the display. If this does not
appear on the display, proceed as below. See MAINTENANCE if the
battery has to be replaced.
2. The mark, or symbol, next to the test lead jacks, is a warning that the
input voltage or current should not exceed the indicated values, to
prevent damage to internal circuitry.
3. The function switch should be set to the range which you want to test
before operation.
DC Voltage Measurement
WARNING. Use extreme caution measuring high voltages, and do not
attempt to measure voltages greater than 1000 Volts, as this can
damage internal circuitry.
1. Connect the BLACK test lead to the COM jack and the RED test lead to
the V/
Ω
jack.
2. Set FUNCTION switch to V --- range to be used and connect test leads
across source or load. Reverse polarity is indicated by a “—” sign being
displayed in front of the reading.
Note:
1. If voltage range is not known beforehand, set the FUNCTION switch to a
high range and work down.
2. When only the figure “1” is displayed, over-range is being indicated,
and the FUNCTION switch must be set to a higher range.
AC Voltage Measurement
WARNING. Use extreme caution measuring high voltages, and do not
attempt to measure voltages greater than 700 Volts RMS, as this can
damage internal circuitry.
1. Connect the BLACK test lead to the COM jack and the RED test lead to
the V/
Ω
jack.
2. Set the FUNCTION switch to the V~ range to be used and connect the
test leads across the source or load under measurement.
Notes: See DC Voltage measurement Note 1.2.
OPERATION
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