Prokit's Industries MT-3120 - Manual (Page 7)

2A Mini Autorange Clamp Meter user manual
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4.12.2 Set the rotary selector to the range position, then the meter at
the test mode.
4.12.3 Connect the red test lead to the anode and the black test lead to the
cathode of the diode for testing.
4.12.4 Take the reading on the LCD.
NOTE:
1) The meter will show the approximate forward voltage drop of the diode.
2) When the test leads have been reversed or open, ‘OL’ will appear on the
LCD.
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4.13 TESTING CONTINUITY
WARNING
Beware of Electrocution.
Make sure that the power of the circuit has been turned off and
the capacitors have been fully discharged before testing the
continuity of a circuit.
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4.13.1 Plug the black test lead into the COM jack and the red test lead into the
INPUT jack.
4.13.2 Set the rotary selector to the range position.
4.13.3 Press the "SEL" button as switch to continuity test.
4.13.4 Connect the test leads to the two ends of the circuit for measurement.
4.13.5 If the resistance of the circuit being tested is less than 50 Ω, the built-in
buzzer will sound.
4.13.6 Take the reading on the LCD.
NOTE:
If the test leads are open or the resistance of the circuit is over 200 Ω, “OL” will
appear on the LCD.
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