Prokit's Industries MT-1280 - Manual (Page 6)

OPERATION
3.1 Front panel description
1. Model
2. LCD display
3. Back light switch
4. Power switch
5. Range knob
6. 20A current jack
7. Less than 200mA current,
Capacitance ,Temperature
“+”, HFE jack
8. COM: capacitance,
temperature“-”, hFE test
accessory, diode,
continuity jack
9. Volt, resistance, diode and continuity jack
10. Hold switch
11. LED indicator light
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, should set
the range knob to the highest range, then, switch to a
proper range according to the displayed value.
2. If LCD displays "1", it means overrange, should set the
range knob to a higher range.
3.3 ACV MEASUREMENT
1. Insert the black test lead to "COM " jack, the red one to
V/Ω jack.
5
2. Set the range knob to a proper ACV range, connect the