Prokit's Industries MT-1270 - Manual (Page 8)

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2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
3. ACV Measurement
1. Insert the black lead into “COM” terminal, and the red lead
into “V/Ω/Hz” terminal, turn the knob to the ACV range,
then connect the test leads across the tested circuit.
Note:
1. If the tested voltage is unknown beforehand, should turn
the knob to the highest range, and then turn to the relative
range according to the value displayed on LCD.
2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
4. DCA Measurement
1. Insert the black lead into “COM” terminal, and red lead into
“mA” terminal (Max 200mA) or red lead into “10A”
terminal(Max 10A)
2. Tern the knob to the DCA Range, then connect the test
leads into the tested circuit in series, the tested current
value and polarity of the red lead will be displayed on LCD
simultaneously.
Note:
1. If the tested current is unknown beforehand, should turn
the knob to the highest range, and then turn to the relative
range according to the value displayed on LCD
2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
. The max input current is 200mA or 10A, it depends on the
location the red lead is inserted. When measuring 10A,
note it will affect the accuracy of measurement and
damage the instrument to continuously measure large
current to make the circuit heat