User manual

52
f) Resistance Measuring
Make sure that all circuit parts, circuits and components and other objects of
measurement are disconnected from the voltage and discharged.
Proceed as follows to measure resistance:
- Turn the DMM on and select the measuring function “Ω”.
- Plug the red measuring line into the Ω measuring jack (9)
and the black measuring line into the COM measuring jack
(8).
- Check the measuring lines for continuity by connecting
the two measuring prods. The impedance value must be
approximately 0 to 1.5 Ohm (inherent impedance of the
measuring lines).
- Now connect the two measuring prods to the object to be
measured. As long as the object to be measured is not
high-impedance or interrupted, the measured value will be
indicated on the display. Wait until the displayed value has
stabilised. With impedances of >1 MOhm, this may take a
few seconds.
- If “OL” (overload) appears on the display, you have
exceeded the measuring range or the measuring circuit is
interrupted.
- Remove the measuring lines from the object to be measured after completion of the meas-
urement and switch off the DMM.
If you perform a resistance measurement, make sure that the measuring points you
touch with the measuring prods are free of dirt, oil, solderable lacquer or similar. Such
circumstances can falsify the measured result.