Frequency Measurement (Electronic) - VOLTCRAFT VC-460 E Notice D'emploi

l) Frequency Measurement (electronic)
The DMM can be used to measure and indicate signal voltage frequencies from 60 Hz to 40 MHz. The maximum input
range is 30 Vrms. This measuring function is not suitable for mains voltage measurements. Please observe the input
values in the technical data.
For mains voltage measurements, use the frequency display in the small subdisplay in the corresponding
voltage and current measuring ranges.
Proceed as follows to measure frequencies:
- Turn the DMM on and select measuring function "Hz".
The display indicates "Hz".
- Plug the red measuring line into the Hz 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 (signal generator, circuit, etc.).
- The frequency is displayed in the main display and the
pulse ratio of the positive half-wave is displayed as per-
centage in the small subdisplay. E.g. 50.0% is displayed
for a symmetrical signal.
- Remove the measuring lines from the object to be meas-
ured after completion of the measurement and switch off
the DMM.
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