Major tech MT1883 사용 설명서 - 페이지 9
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4.1. Back Light Button
The back light button is used to turn the back light on only. To extend
the battery life, the back light will be turned off automatically within
around 3 seconds.
4.2. DC Voltage Measurements
Caution: 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 V DC position ("mV" will appear on
the display).
2.
Insert the black test lead banana plug into the negative (COM)
jack and the red test lead banana plug into the positive (V) jack.
3.
Touch the test probe tips to the circuit under test. Be sure to
observe the correct polarity (red lead to positive, black lead to
negative).
4.
Read the voltage on the display. The display will indicate the
proper decimal point and value. If the polarity is reverse, the
display will show (-) minus before the value.
4.3. AC Voltage Measurements
Warning: Risk of electrocution. The probe tips may not be long
enough to contact the live parts inside some 240V outlets
for appliances because the contacts are recessed deep in
the outlets. As a result, the reading may show 0V when the
outlet actually has voltage on it. Make sure the probe tips
are touching the metal contacts inside the outlet before
assuming that no voltage is present.
Caution: Do not measure AC 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 V AC position.
2.
Insert the black test lead banana plug into the negative (COM)
jack and the red test lead banana plug into the positive (V) jack.
3.
Touch the test probe tips to the circuit under test
4.
Read the voltage on the display. The display will indicate the
proper decimal point, value and symbol (AC, V, etc).
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