Instructions
51
Proceed as described above to measure alternating currents (A ).
- TurntheDMMonandselectthedesiredmeasuringfunction“A,mA,µA”.
- Press“SELECT”toswitchtotheACmeasuringrange.Thedisplayshows
“AC”.PressingthisbuttonagaintakesyoubacktotheDCmeasurement
range, etc.
- Connectthemeterasdescribedinchapter“Measuringdirectcurrents”.
- The current measured value is displayed in the main display and the fre-
quency in the small subdisplay.
- Power the circuit down again after the end of measuring and remove the
measuring lines from the measured object. Switch off the DMM.
h) 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:
- TurntheDMMonandselectthemeasuringfunction“Ω”.
- PlugtheredmeasuringlineintotheΩmeasuringjack(E)
and the black measuring line into the COM measuring jack
(D).
- Check the measuring lines for continuity by connecting the
two measuring prods. The impedance value must be ap-
proximately0-0.5Ω(inherentimpedanceofthemeasur-
ing lines).
- Forlow-impedancemeasurements,pushthebutton“REL”
(G) to not include the inherent impedance of the measuring
lines in the following impedance measurement. The display
shows0Ω.
- 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.Withimpedancesof>1MΩ,thismaytakeafew
seconds.
- If“OL”(overload)appearsonthedisplay,youhaveexceededthemeasuringrangeorthemeasuringcircuitis
interrupted.
- Remove the measuring lines from the object to be measured after completion of the measurement and switch off
the DMM.
If you carry out a resistance measurement, make sure that the measuring points you touch with the meas-
uring prods are free from dirt, oil, solderable lacquer or similar. Such circumstances can falsify the meas-
ured result.
Thebutton“REL”worksonlywhenameasuredvalueisdisplayed.When“OL”isdisplayed,thisfunction
cannot be activated.










