Bearing Fault Detector PLUS0 pages

IMI Sensors: A PCB Piezotronics Division

Bearing Fault Detector PLUS
USB Programmable loop powered device with 4-20mA output contained in a typical
vibration sensor housing ideal for fault detection in rolling element bearings
Highlights
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Combination 4-20 mA sensor
PLUS vibration transmitter
USB Programmable: Fine tune transmitter
to your specific machine parameters
Various output options: Integrates with
your PLC system
Output specifically tuned for sensing early
faults/failures in rolling element bearings

Typical Applications
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Motors
Fans
Pumps

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Critical rotating machinery
Fixed speed rotating equipment
Variable frequency
driven machinery

The 649A03 Bearing Fault Detector PLUS is a USB Programmable loop powered
device with 4-20mA output, all contained in typical vibration sensor housing. It is
specifically designed to provide early warning of typical ball/rolling element bearing
faults such as cracked races, spalling, brinelling, and looseness. The model is similar
to IMI’s 682B05 DIN rail mounted Bearing Fault Detector; however, it is not a direct
substitute. Like the 682B05, it provides a 4-20 mA output specially tuned to detect
high frequency bearing faults. Unlike the 682B05, which is mounted in a box
connected to an external sensor, the 649A03 has a sensor form factor that can directly
mount to the machinery. It differs in that it provides several additional outputs, but
can only provide one at any given time. These specialized outputs can be selected
using the USB Programming function of the transmitter.
The primary use for the Bearing Fault Detector PLUS is in applications with critical
rotating machinery that needs continuous monitoring. The 649A03 is specifically
designed to be sensitive to high frequency faults in rolling element bearings, which
indicate the early stages of damage. It serves to provide a proactive warning to any
Predictive Maintenance technician by increasing its 4-20 mA output proportional to
this high frequency vibration. They can use this 4-20 mA scaled output to both trend
the data and create vibration alarms with a PLC or DCS to closely monitor when
machinery should be shut down and its rolling element bearing should be replaced.

Bearing Fault Detector PLUS
Model 649A03

visit us at www.imi-sensors.com

The Bearing Fault Detector PLUS has five different outputs which aid in fault
detection, and these are user-selectable by a simple software program through a PC’s
USB port. The output options include RMS acceleration, True Peak acceleration,
Compensated Peak acceleration, Crest Factor, and Crest factor Plus. Many of the
various output options require the speed of rotation as an input for programming. Due
to this feature and the nature of bearing vibration frequencies, the 649A03 is best
suited for fixed speed rotating equipment; however, the Crest Factor Plus uses an
algorithm which normalizes the output across various running speeds and is designed
for use with variable frequency driven machinery.

Toll-Free in the USA 800-959-4464

716-684-0003