Major tech MT1887 Panduan Pengguna - Halaman 5

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Major tech MT1887 Panduan Pengguna
Operating Instructions
WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous
and should be measured with great care.
1.
ALWAYS turn the function switch to the OFF position when the meter is not in use.
If "OL" appears in the display during a measurement, the value exceeds the range you
2.
have selected. Change to a higher range.

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 green VDC position.
2.
Insert the black test lead banana plug
Insert the red test lead banana plug into
3.
Touch the black test probe tip to the
Touch the red test probe tip to the positive
4.
Read the voltage in the display.

AC VOLTAGE (FREQUENCY, DUTY CYCLE) 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 0 volts 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 green VAC/Hz/% position.
2.
Insert the black test lead banana plug into
Insert red test lead banana plug into the
3.
Touch the black test probe tip to the
Touch the red test probe tip to the "hot" side
4.
Read the voltage in the display.
Press the MODE button to indicate "Hz".
5.
6.
Read the frequency in the display.
Press the MODE button again to indicate "%".
7.
8.
Read the % of duty cycle in the display.
into the negative COM jack.
the positive V jack.
negative side of the circuit.
side of the circuit.
the negative COM jack.
positive V jack.
neutral side of the circuit.
of the circuit.