A6125 Emerson Case Piezoelectric Vibration Monitor-colletplc

Description:

The Case Piezoelectric Vibration Monitor is designed for high reliability for your plant’s
most critical rotating machinery monitoring case vibration from accelerometer
sensors. This 1-slot monitor is used together with other CSI 6500 monitors to build
a complete API 670 machinery protection monitor. Applications include steam, gas,
compressors and hydro turbo machinery.
The main functionality of the Case Peizoelectric Vibration Monitor is to accurately
monitor case vibration and reliably protect machinery by comparing vibration
parameters against alarm setpoints, driving alarms and relays.
Case piezoelectric vibration sensors, sometimes called case absolute (not to be
confused with shaft absolute), are accelerometers, or velometers, with the output in
acceleration or velocity. The case vibration monitor provides vibration monitoring for
the bearing case in g’s acceleration or velocity, mm/sec (in/sec). Since the sensor is
mounted on the case, the resultant vibration of the case can be influenced by many
different sources including rotor movement, foundation and case stiffness, blade
vibration, adjacent machines, etc.
When replacing field sensors, many seismic sensors are being replaced with
piezoelectric-type. The 6125 monitor is designed for the newer piezoelectric
style sensors.
Case measurements are common in nuclear power applications. Case measurements
with piezoelectric sensors are also common for rolling element bearing machines and
gearboxes. Emerson recommends the piezoelectric sensor and piezoelectric sensor
monitor for use when updating both field sensors and monitors.
The CSI 6500 is an integral part of PlantWeb® and AMS Suite. PlantWeb provides
operations integrated machinery health combined with the Ovation® and DeltaV™
process control system. AMS Suite provides maintenance personnel advanced
predictive and performance diagnostic tools to confidently and accurately determine
machine malfunctions early

Datasheet Link:

A6125 Emerson Case Piezoelectric Vibration Monitor datasheet