CESVA VC431, User Manual, Page: 23 / 72

VC431
Instruction manual
21
NOTE: If you wish to save the verification result, use the TEST option on the main menu (see section
2.16)
To check the Buildings / Structure AC032 accelerometer it will suffice to press the
accelerometer against the calibrator head with the hand. Note that the AC032 accelerometer
has flat surfaces all along it to facilitate placement of the accelerometer on the CV211
vibrator head. Although it is advisable to connect the accelerometer using the DI016
mounting magnet (see 4.21).
To check the AC033 whole body accelerometer separate the sensor (metal part) from the
rest of the body (plastic part). To do so, loosen the 6 Phillips screws located at the bottom
and pull the sensor (metal part) outwards with the cable. ( Do not remove the other screws ).
has an optional accessory, AA144 , to connect the AC033 accelerometer to the
calibrator in the three directions (X, Y and Z).
The pictures below illustrate how to check the AC031 and AC033 accelerometers.
It is very important to fix the accelerometer on the base of the head symmetrically with regard
to the vibration head, since wrong layout or placement will cause the vibration of the system
to deviate from the axis.
Note *: If you buy the VC431 with accelerometer(s), it comes with the real sensitivity already entered
for the accelerometer(s) acquired. The other sensitivities will be the rated ones.
The real sensitivity is the one stated on the accelerometer's calibration chart.