Diode Test; Continuity Test - VOLTCRAFT VC880 Bedienungsanleitung

If you carry out a impedance measurement, make sure that the measuring points you touch with the test prods
are free from dirt, oil, solderable lacquer or similar. Such circumstances can falsify the measured result.
f) Diode Test
Make sure that all circuit parts, circuits and components and other objects of measurement are
disconnected from the voltage and discharged.
- Switch on the DMM and select measuring range
The diode symbol is displayed.
- Plug the red measuring line into the Ω measuring jack (7) and
the black measuring line into the COM measuring jack (8).
- Check the measuring lines for continuity by connecting both
measuring prods with one another. The value must be approxi-
mately 0.0000 V.
- Now connect the two measuring prods with the object to be mea-
sured (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.
- After measuring, remove the measuring lines from the measured
object and turn off the DMM.
g) Continuity Test
Make sure that all circuit parts, circuits and components and other objects of measurement are
disconnected from the voltage and discharged.
- Switch on the DMM and select measuring range
Press the "SHIFT/SETUP" button to switch measurement func-
tions. The symbol for continuity test now appears in the display.
Pressing this button again takes you to the first measuring func-
tion, etc.
- Plug the red measuring line into the Ω measuring jack (7) and
the black measuring line into the COM measuring jack (8).
- A value of less than 20 Ohm is measured as continuity; in this
case a beep sounds. The measuring range is up to 400 Ohm.
- As soon as "OL." (overload) appears on the display, you have
exceeded the measuring range or the measuring circuit is inter-
rupted.
- After measuring, remove the measuring lines from the measured
object and turn off the DMM.
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