Prokit's Industries MT-1280 - Manual (Page 7)

6
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.
3.4 DCA MEASUREMENT
1. Insert the black test lead to "COM " jack and the red one
to "mA" jack(max. 200mA) ,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.
NOTE:
1. If the measured current is unsure beforehand, should set
the range knob to a higher 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. Max. input current is 200mA or 20A (subject to where red
lead insert), excessive current will blow the fuse. Be
careful when measuring. Continuously measuring large
current may heat the circuit, affect the accuracy, eve
damage the meter.
3.5 ACA MEASUREMENT
1. Insert the black test lead to "COM" jack and the red one to
"mA" jack(max. 200mA), or insert the red one to "20A"
jack (max. 20A).
2. Set the range knob to a proper ACA range; connect the
test leads across to the circuit under tested.
NOTE:
1. If the measured current range is unsure beforehand,
should set the range knob to the highest range, then set