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e) Voltage measuring “mV”
There is a dedicated measuring function to measure smaller voltages up to 600 mV at a high resolution. This function
can be used for alternating and direct voltage alike.
Proceed as follows to measure alternating voltages “AC “ (mV ):
- Turn the DMM on and select measuring function
“mV “.Thedisplayshows“AC”andtheunit“mV”.
- Plug the red measuring line into the V measuring jack (E)
and the black measuring line into the COM measuring jack
(D).
- Connect the two measuring prods to the object to be meas-
ured in parallel (generator, circuit, etc.).
- The measured value is indicated on the display.
- Remove the measuring lines from the object to be meas-
ured after completion of the measurement and switch off
the DMM.
The voltagerange “mV”hasaninputresistance
of≥100MΩ.Withthemeasuringinputsopen,the
high sensitivity may cause an undened meas-
ured value to be displayed; however, this does not
inuencethemeasuringresult.
Proceed as follows to measure direct voltages “DC” (mV ):
- Turn the DMM on and select measuring function “mV “.
- Press“SELECT”toswitchtothedirectcurrentmeasurementrange.The
displayshows“DC”andtheunit“mV”.
- Plug the red measuring line into the V measuring jack (E) and the black
measuring line into the COM measuring jack (D).
- Connect the two measuring prods to the object to be measured in parallel
(generator, circuit, etc.). The red measuring prod indicates the positive pole,
the black measuring prod the negative pole.
- The polarity of the respective measured value is indicated on the display
together with the current measured value.
- Remove the measuring lines from the object to be measured after comple-
tion of the measurement and switch off the DMM.
Ifaminus“-”appearsinfrontofthemeasuredvaluefordirectvolt-
age, the measured voltage is negative (or the measuring lines are
swapped).
Thevoltagerange“mV”hasaninputresistanceof≥100MΩ.With
the measuring inputs open, the high sensitivity may cause an un-
denedmeasuredvaluetobedisplayed;however,thisdoesnot
inuencethemeasuringresult.