Mount the accelerometer on the vibration calibrator. Be careful, impropper mounting will lead to wrong results.
Also make sure the accelerometer cable will not disturb the movement of the accelerometer in any way.
Select the physical input to calibrate (e.g. VAx) where this accelerometer is connected.
Select "Manual" calibration and turn the calibrator on. Select e.g. 1 kHz and 114 dB. On the screen you will then see
the spectre of the calibration tone. Tap on the spectre picture and select a network (C) or the corresponding 1/3rd octave frequency.
The sensitivity of the analyser can now be adjusted up and down in 0.1 dB steps until the expected level is obtained.
A line diagram is also shown giving the historical values of calibration results. The Red line in this diagram
is the calibration results obtained in a calibration laboratory, while the blue line represents all the field checks
or calibrations performed by the operator.
Please be aware that something may be wrong either with the transducer or with its settings if it is a need to change the
sensitivity with more than a small percentage.