5. Human Vibration Measurement with the VM30-H
5.1. Switching On and Connecting the Sensor
Switch on the VM30-H by pressing the ON/OFF key for at least two seconds (compare p. 16).
Plug in the sensor cable or unplug it shortly to activate the sensor detection. Select the
connected sensor (hand-arm or whole-body) using the ▲▼ keys. If the VM30-H was calibrated
already with the selected sensor, you may answer the question “Edit this sensor?” with “No”.
Otherwise select “Yes”, choose the nominal transducer sensitivity (1 or 10 mV/m/s
-2
) and enter
in the menu “By transducer sensitivity” the sensitivities from the supplied calibration certificate
for X, Y and Z direction. Numbers can be changed by the ◄▲▼► keys. Confirm each entry
with OK and leave the menu with ESC.
The sensitivities of both sensor types remain stored in the instrument (see p. 39). They must not
be entered again if the sensor is changed.
Figure 4: Sensors for hand-arm and whole-body vibration
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