Prokit's Industries MT-1280 User Manual

Page 8

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 the

red lead insert to), excessive current will blow the fuse. Be

careful when measuring. Continuously measuring large

current may heat the circuit, affect the accuracy, even

damage the meter.

3.6 RESISTANCE MEASUREMENT

1. Insert the black test lead to "COM" jack and the red one to

"V/Ω" jack.

2. Set the range knob to a proper resistance range, connect

the test leads across to the resistance under measured.

NOTE:

1. If the resistance value being measured exceeds the max

value of the range selected, LCD displays "1", thus,

should set the range knob to a higher range. When the

resistance is over 1MΩ, the meter may take a few

seconds to stabilize. This is normal for high resistance

readings.

2. When input terminal is in open circuit, overload displays.

3. When measuring in-line resistance, be sure that power is

off and all capacitors are released completely.

3.7 CAPACITANCE MEASUREMENT

1. Insert the red test lead to " mA" terminal and the black one

to " COM " jack.

2. Set the range knob to a proper capacitance range,

connect the test leads to the capacitor under measured

(note: the polarity of red test lead is"+").

NOTE:

1. If the capacitance range under measured is unsure

beforehand, should set the range knob to the highest

range, then, set to a proper range according to the

displayed value.

2. If LCD displays "1" , it means overrange, should set the