Diode Test; Continuity Test - VOLTCRAFT VC-420 Bedienungsanleitung

g) 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 "MODE" button 1 x to switch measurement functions. The dis-
play shows the diode symbol and the unit Volt (V). Pressing this button
again takes you to the next measuring function, etc.
- Plug the red measuring line into the Ω measuring jack (8) and the black
measuring line into the COM measuring jack (7).
- Check the measuring lines for continuity by connecting the two meas-
uring 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" ap-
pears, 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 measured after
completion of the measurement and switch off the DMM.
h) 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 "MODE" button twice 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 (8) and the
black measuring line into the COM measuring jack (7).
- A value of less than 100 Ohm is measured as continuity and a beep
sounds.
- If "OL" (overload) appears on the display, you have exceeded the
measurement range or the measuring circuit is interrupted.
- Remove the measuring lines from the object to be measured after
completion of the measurement and switch off the DMM.
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