Sonel CMP-402 Manual De Uso página 54

5.7 Circuit continuity test
WARNING
Do not perform measurements on the circuit under the
voltage. Before the measurement disconnect the pow-
er and discharge capacitors.
To perform the continuity test:
 set the rotary switch at
 connect black test lead to COM terminal, and red test lead to
VΩCAP
 contact the tips of test probes to the points of measurement,
 read the measurement result on the display; the beep will be acti-
vated when resistance values are below approx. 50 Ω.
5.8 Diode test
WARNING
Do not perform measurements on the circuit under the
voltage. Before the measurement disconnect the pow-
er and discharge capacitors. Do not test the diode un-
der voltage.
To perform the diode test:
 set the rotary switch at
 press MODE/VFD button, to display
 connect black test lead to COM terminal, and red test lead to
VΩCAP
 contact the tips of test probes to the diode. The red test probe
should contact the anode and the black should contact cathode,
 read the test result on the display – the forward voltage is dis-
played.
 For a typical silicon rectifier diode, it is approx. 0.7 V, and for
a germanium diode it is approx. 0.3 V
 For LEDs with a low power, typical voltage value is in the
range of 1.2...5.0 V depending on the colour.
52
Hz%Temp terminal,
Hz%Temp terminal,
CMP-402 ● CMP-403 – USER MANUAL
,
,
V on the screen,