Instructions

32
d) Diode test
Make sure that all objects that you wish to measure (including circuit components, circuits and
component parts) are disconnected and discharged.
- Switch on the DMM and select the measuring function.
- ConnecttheblackmeasuringleadtotheCOMsocket(5)andtheredmeasuringleadtothemA/Ωsocket(7).
- Check the measuring leads for continuity by connecting both probe tips to one another. The value must be approx.
0 V. The open-circuit voltage is approx. 3 V.
- Now connect the two measuring tips to the object that you want to measure (diode).
- Ifthe“overow”iconisdisplayed,thediodeismeasuredinreversedirectionorthe
diode is defective (open circuit). Try taking the measurement again with the oppo-
site polarity. The red measuring lead corresponds to the positive pole (anode), the
black measuring lead to the negative pole (cathode). A silicon diode has a forward
voltage of approx. 0.5 - 0.8 V.
- After measuring, remove the measuring leads from the measured object and switch
offtheDMMatthe“POWER”button(3).
e) Continuity test
Make sure that all objects that you wish to measure (including circuit components, circuits and
component parts) are disconnected and discharged.
- Switch on the DMM and select the measuring function
- ConnecttheblackmeasuringleadtotheCOMsocket(5)andtheredmeasuringleadtothemA/Ωsocket(7).
- A measured value of approx. <10 ohm is detected as continuity and a continuous tone is emitted.
- Assoonasthe“overow”iconisdisplayed,youhaveexceededthemeasuringrangeorthemeasuringcircuitis
open.
- Aftermeasuring,removethemeasuringleadsfromthemeasuredobjectandswitchofftheDMMatthe“POWER”
button (3).