H) Diode Test; I) Continuity Test - VOLTCRAFT VC-400 Series Operating Instructions Manual

h) Diode test

Make sure that all circuit parts, circuits and components and other objects of measurement are
disconnected from the voltage and discharged.
- Turn the DMM on and select measuring function
- Press the "SELECT" button 2 x to switch measurement func-
tions. The display shows the diode symbol and the unit Volt
(V). Pressing this button again takes you to the next measur-
ing function, etc.
- Plug the red measuring line into the Ω measuring jack (E) and
the black measuring line into the COM measuring jack (D).
- Check the measuring lines for continuity by connecting the
two measuring prods. The value must be approximately
0,000 V.
- Connect the two measuring prods with the object to be
measured (diode).
- The display shows the continuity voltage "UF" in volt (V). If
"OL" appears, the diode is measured in reverse direction
(UR) or the diode is faulty (interruption). Perform a counter-
pole measurement to check.
- Remove the measuring lines from the object to be meas-
ured after completion of the measurement and switch off the
DMM.

i) Continuity test

Make sure that all circuit parts, circuits and components and other objects of measurement are
disconnected from the voltage and discharged.
- Turn the DMM on and select measuring function
- Press the "SELECT" button 1 x to switch measurement
functions. The display shows the symbol for continuity
testing and the symbol for the unit "Ω". Pressing this button
again takes you to the next measuring function, etc.
- Plug the red measuring line into the Ω measuring jack (E)
and the black measuring line into the COM measuring jack
(D).
- A continuity value of ≤ 10 Ω is identified as continuity; in
this case a beep sounds. The measuring range is up to
600 Ω.
- If "OL" (overload) appears on the display, you have ex-
ceeded the measuring range or the measuring circuit is
interrupted.
- Remove the measuring lines from the object to be meas-
ured after completion of the measurement and switch off
the DMM.
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