Bently Nevada 200350 and 200355 Accelerometers

Description

The 200350 and 200355 Accelerometers are general

purpose, case-mounted seismic transducers designed

for use with Trendmaster Pro Constant Current Direct

Input Card, part number 149811-02 and the Seismic

Direct Input Card, part number 164746-01.

The 200350 and 200355 Accelerometers are contained

within a hermetically sealed, stainless steel case.  The

design provides an extremely rugged transducer, well

suited for harsh industrial environments.  Each

transducer’s top mounted, 2-pin connector (MIL-C5015) allows for easy installation and removal of the

interconnecting signal cable.  A ¼-28 threaded hole on

the bottom of the casing accommodates multiple

mounting options.

The 200350 and 200355 Accelerometers contain a

piezoelectric sensing device, which generates charge

when subjected to vibration.  This charge is then

converted electronically to a differential voltage signal,

which is proportional to the acceleration that is parallel

to the sensitive axis of the transducer.

Most common machine malfunctions (unbalance,

misalignment, etc.) occur on the rotor and

originate as an increase (or at least a change) in

rotor vibration. For any individual casing

measurement to be effective for overall machine

protection, the system must continually transmit a

significant amount of rotor vibration to the

machine casing, or mounting location of the transducer.

In addition, be careful to install the accelerometer

transducer on the bearing housing or

machine casing. Improper

installation may decrease the

transducer amplitude and frequency

response and/or generate false

signals that do not represent actual

vibration. Refer to the appropriate

instruction manuals and Application Notes.

Upon request, Bently Nevada provides

engineering services that can identify

the appropriate machine housing

measurements and installation

assistance if needed.