Description

Bently Nevada™ Velomitor Piezo-velocity Sensors are

designed to measure absolute (relative to free space)

bearing housing, casing, or structural vibration. The 330500 is

a specialized piezoelectric accelerometer that incorporates

embedded integrated electronics in a solid-state design.

Because the 330500 incorporates solid-state electronics and

has no moving parts, it does not suffer from mechanical

degradation and wear, and can be mounted vertically,

horizontally, or at any other angle of orientation

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.