3.7. Capacitance measurement
• Insert the black multimeter probe into “COM” end, and the red multimeter probe into “VΩHz” end;
• Select the knob to proper capacitance range,
Notes
• If the capacitance under tested is over the max. Value of selected range, LCD displays “OL”, thus should
select the knob to a higher range.
• When measuring at large capacitance range, if capacitor is crept badly or broken, LCD displays a value
and it’s unstable.
• Tested capacitor shall be completely discharged, for fear of damaging the instrument;
• Unit: 1uF=1000nF 1nF=1000pF
3.8. Square Wave Output
• Insert test leads or shielded cable into “COM” and “ V/Ω/Hz” terminal.
• Set the knob to square wave and connect the probe cable to the oscilloscope with test leads, it will
display a value under 50-5kHz.
Notes
• The initial square wave output is 50Hz, if want to output different frequency, press „HOLD” to choose.
• CAUTION: do not input voltage at this range!
3.9. Diode and on-off test
• Insert the black multimeter probe into “COM” hole and red multimeter probe into “VHz” hole (the
polarity of red multimeter pole is “+”;
• Rotate the functional switch to “DIODE” or “BUZZ” level;
• Measurement in forward direction: Connect the red/black multimeter probe to the positive/ negative
pole of the tested diode, and the display unit will display the approximate value of the voltage drop in
forward direction of the diode;
• The buzzer sounds if the resistance of a circuit under test is less than (50±20)Ω.
Notes
• Don’t input voltage at
level.
3.10. Transistor measurement
• Set the knob to hFE range. Inset the test leads to “COM” and “mA” Note: “COM” terminal is for positive
pole (+), “mA” terminals is (-).
Verify the transistor under tested is NPN or PNP, insert emitter, base and collector to proper jack.
