PRÜFTECHNIK Condition Monitoring GmbH VCRFBR24 Manuale Utente

VIBCONNECT RF 05.2012

5.5 Installation of sensors

For proper installation of the sensors on site, the operator must 
ensure that the following requirements are met:

•  The sensors are secured to the machine with the supplied M8 

threaded bolt or with a suitable mounting adapter. 

•  Observe the rules for the choice of measurement locations for 

vibration measurements.

Temperature: 

– 40 °C to +125 °C

Relative air humidity: 

max. 95 %, non-condensing

The sensors must not be installed in a location that is near a strong 
electromagnetic field (e.g. generator, high-voltage cable, electric 
drive unit, etc.).

•  Mounting adapter: Screw adapter (VIB 3.480*), adhesive adapter 

(VIB 3.418), magnetic adapter (VIB 3.423). For special tools and 
auxiliary materials required for the attachment of the various 
adapters, see chapter for adapter installation.

•  Standard tools for electrical installation (wire cutter, cable 

 stripper,  screwdriver).

•  Suitable strain relief devices for cables.

When choosing a location of installation for a sensor observe the 
following rules to ensure optimum signal transmission:
•  Mount sensor in radial measuring direction (i.e. perpendicular to 

shaft, in vertical or horizontal position).

•  Axial measurement locations are recommended to monitor 

the  machine for the following defects or faults: Misalignment, 
 damaged geared wheels, loose fixtures, bent shafts, etc.

•  Machines mounted on rigid foundations show high horizontal 

vibration. Fixed anchoring suppresses vertical vibration.

•  Machines mounted on vibration-damped foundations show 

vibration that is equally strong in horizontal and vertical direc-
tion.

•  The frequency behavior and dynamic range of the sensor can 

be significantly influenced by the way the sensor is attached. 
Weak coupling to the measurement location results in attenu-
ated signals and limits the frequency range. The sensor must be 
secured to the measurement location in a rigid, friction-locked 

* included in  
scope of delivery