Model 682A05 Bearing Fault Detector

The Model 682A05 Bearing Fault Detector is a signal conditioner housed in a DIN rail mounted vibration transmitter housing.

 

The unit mounts to DIN rail and accepts an analogue vibration signal as generated from a 100 mV/g ICP® accelerometer. Three different vibration output signals are provided by the BFD :-

(1) the raw, analogue voltage signal generated by the accelerometer;
(2) a low frequency, linear, 4 to 20 mA signal proportional to overall rms or peak vibration and expressed as either acceleration or velocity;
(3) a logarithmically scaled, 4 to 20 mA signal proportional to high-frequency, captured peak acceleration.

It is this third output signal that makes the BFD unique, powerful, and patented.

The benefit of this unique measurement signal is its ability to respond, with significant change, when short duration bursts of energy manifest into a vibration signal. These bursts are indicative of bearing and gear problems, yet are so short in duration that they have little influence on an overall vibration signal, as provided by signal type (2) above.

This unique capability enables the BFD to provide the earliest warning of bearing and gear problems through an ordinary 4 to 20 mA signal. This permits the user to initiate the diagnostic and maintenance process sooner in order to avoid a catastrophic and costly machinery failure.

 

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