Dcv Measurement; Acv Measurement; Dca Measurement - Pro'sKit MT-1280 User Manual

3.2 DCV MEASUREMENT

1. Insert the black test lead to " COM " jack, the red one to V/Ω jack.
2. Set the range knob to a proper DCV range, connect the test leads across to the
circuit under tested, the polarity and voltage of the point which red lead connect
will display on LCD.
NOTE:
1. If the measured voltage is unsure beforehand, the range knob should be set to the
highest range; then, switch to a proper range according to the display value.
2. If LCD displays "0L.", it means over range, the range knob should be set to a
higher range.

3.3 ACV MEASUREMENT

1. Insert the black test lead to "COM " jack, the red one to V/Ω jack.
2. Set the range knob to a proper ACV range, connect the test leads across to the
circuit under tested.
NOTE:
1. If the measured voltage is unsure beforehand, the range knob should be set to the
highest range; then, switch to a proper range according to the display value.
2. If LCD displays "0L.", it means over range, the range knob should be set to a
higher range.
3. The value of the AC voltage measured with this meter is True RMS (root mean
square). These measurements are accurate for sine wave and other waves
(without DC offset), square wave, triangular wave and step wave.
3.4 Frequency MEASUREMENT
1. Insert the black test lead to "COM " jack, the red one to V/Ω jack.
2. Set the range knob to a proper AC 750V range, press the "
"Hz" measurement mode, connect the test leads across to the circuit under tested.
3. When the measured signal ≥100V and the frequency is within the range of
45Hz~1000Hz，the LCD of the meter will display frequency value of the voltage.

3.5 DCA MEASUREMENT

1. Insert the black test lead to "COM " jack and the red one to "mA" jack(max.
600mA) ,or insert the red one to "20A" jack(max. 20A).
2. Set the range knob to a proper DCA range, connect the test leads across to the
circuit under tested. The current value and polarity of the point, which red lead
connect will display on LCD.
7
/SEL" key to select