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g) Diode Test
Make sure that all circuit parts, circuits and components and other objects of measurement are discon-
nected from the voltage and discharged.
- Turn the DMM on and select measuring function
.
- Plug the red measuring line into the V measuring jack (6) and the
black measuring line into the COM measuring jack (5).
- Check the measuring lines for continuity by connecting the two
measuring prods. The value must be approximately 000. The DMM
emits a beet that is not relevant for the diode test.
- Connect the two measuring prods with the object to be measured
(diode).
- The display shows the continuity voltage “UF” in milli volt (mV).
When “OL” appears, the diode is measured in reverse direction
(UR) or the diode is faulty (interruption). Perform a counter-pole
measurement to check. At a continuity voltage of approx. <30 mV, a
beep sounds. However, this is not relevant.
- Remove the measuring lines from the object to be measured after
completion of the measurement and switch off the DMM.
h) Battery Test
The battery test permits review of the terminal voltage of 9 V block
batteries and 1.5 V round cell batteries. When testing, the battery is
charged with a low load current that leads to an indicative test result.
- Switch on the DMM and select the respective measuring range
“BATT.”.
- Plug the red measuring line into the V measuring jack (6) and the
black measuring line into the COM measuring jack (5).
- Connect the two measuring prods with the object to be measured
(battery).
- The display shows the terminal voltage of the battery under load
conditions in volt.
- Remove the measuring lines from the object to be measured after
completion of the measurement and switch off the DMM.
