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f) 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 ”.
The display shows “AC” and the unit “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 voltage measured value is displayed in the main dis-
play and the frequency in the small subdisplay.
- Remove the measuring lines from the object to be meas-
ured after completion of the measurement and switch off
the DMM.
The voltage range “mV” has an input resistance
of ≥10 MΩ. With the measuring inputs open, the
high sensitivity may cause an undefined meas-
ured value to be displayed; however, this does not influence the measuring result.
Proceed as follows to measure direct voltages "DC" (mV ):
- Turn the DMM on and select measuring function “mV ”.
- Press “SELECT” to switch to the direct current measurement range. The
display shows “DC” and the unit “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 completion of the measurement and switch off
the DMM.
If a minus “-” appears in front of the measured value for direct voltage, the measured voltage is negative
(or the measuring lines are swapped).
The voltage range “mV” has an input resistance of ≥1000 MΩ. With the measuring inputs open, the high
sensitivity may cause an undefined measured value to be displayed; however, this does not influence the
measuring result.
