31
KPS-MT40 • Digital multimeter
ENG
3.2.3 Diode test
To test diode outside circuit:
1 Rotate the switch to position.
2 Respectively connect black and red test probe to COM input socket and Ω
input socket.
3 Respectively connect black and red test probe to negative pole and positive
pole of the diode to be tested.
4 The meter will display the forward bias voltage value of diode being tested.
If the test probe polarity is reversed, the meter will display “1”. In a circuit, a
good diode should still produce a forward voltage drop of 0.5V to 0.8V; but
the reverse bias voltage will vary depending on resistance values of other
channels between two test probes.
3.2.4 Audible continuity testing
To make continuity testing:
1Rotate the switch to position .
2 Respectively connect black and red test probe to COM input socket and Ω
input socket.
3 Measure the resistance value of circuit to be tested with other two ends of
test probes.
4 During on-off testing, if the measured circuit resistance is not greater than
about 50Ω, the buzzer will sound continuously.
3.2.5 Measuring capacitance
Capacitance range of this meter: 2.000nF, 20.00nF, 200.0nF, 2.000μF and
100.0μF.
To measure capacitance:
1 Rotate switch to the appropriate position.
2 Respectively connect black and red test probe to
COM input socket and input socket.
3 Measure the capacitance value of circuit to be tested with other two ends of
test probes and read the measuring value from LCD display.
Here are some tips for measuring capacitance:
When measuring bulk capacitor with this meter, readings will stabilize after
a few seconds. To improve the accuracy below 2nF, subtract the distributed
capacitance of meter and cable.
