PCE Instruments PCE-VT 3900 Bedienungsanleitung Seite 50

5.7 Calibration
A vibration calibrator capable of generating a reference vibration of 10 mm/s RMS at 159.2 Hz
(e. g. PCE-VC20 or PCE-VC21) is required for the calibration of the vibration meter. The
calibration can be started via the sub menu Calibration.
A code is required to enter this menu in order to prevent an inadvertent overwrite of the current
calibration. The required code is 1402.
Fig. 8 Code request
After the code request, the required reference vibration is indicated. The sensor of the vibration
meter must now be mounted on the vibration calibrator.
Fig. 10 Hint for required reference vibration
After turning on the vibration calibrator and, if required, setting the reference vibration, the hint
can be confirmed with the OK key so that the calibration screen opens. This screen shows the
required characteristic values of the reference vibration and the current measurement value in
green font and in the unit mm/s. It is not necessary to adjust the measuring unit and the parameter
specifically for the calibration as only the RMS value of the vibration velocity will be evaluated
during this procedure.
© PCE Instruments
45