Bently Nevada 107770-03-03 Velocity Transducer Housing

Description

The Bently Nevada 107770-03-03 is a Velocity Transducer Housing Assembly designed for use with the 330500 Velomitor Piezo-Velocity Sensor in rotating machinery vibration monitoring applications. The assembly provides a protected installation arrangement for the sensor and is used to measure absolute vibration of bearing housings, machine casings, and structural components. The 107770-03-03 assembly incorporates a 330500 Velomitor sensor design based on a piezoelectric accelerometer with embedded integrated electronics. The solid-state construction contains no moving parts, allowing the sensor to be installed in different mounting orientations while providing stable vibration velocity measurement. This configuration is designed with a 1/2-14 NPT mounting thread option and a 1/2-14 NPT explosion-proof cable exit fitting with cable gland seal. The installed Velomitor sensor provides a velocity output signal proportional to machine casing vibration, supporting condition monitoring applications where vibration measurements in velocity units are required. The 330500 Velomitor Piezo-Velocity Sensor is commonly used on machines with rolling-element bearings and other rotating equipment where casing vibration monitoring is required. 

Parameter

Model: 107770-03-03 Velocity Transducer Housing
Mounting Thread Option: 03-1/2 - 14 NPT
Cable Exit Fitting Option: 03-1/2 - 14 NPT explosion-proof with cable gland seal
Operating Temperature Range: +20 °C to +30 °C (+68 °F to +86 °F)
Shock Survivability: 5,000 g peak, maximum
Relative Humidity: To 100% non-submerged; case is hermetically-sealed.

Frequently asked questions

Q:What sensor is installed inside the 107770-03-03 assembly?
A:The 107770-03-03 housing assembly is designed for use with the 330500 Velomitor Piezo-Velocity Sensor. The sensor provides vibration measurements in velocity units commonly used for machinery condition monitoring.

Q:Does the Velomitor sensor have moving parts?
A:No. The 330500 Velomitor uses a solid-state piezoelectric design with embedded electronics and no moving parts, reducing mechanical wear during operation.

Q:What type of vibration can the 107770-03-03 measure?
A:It is used for measuring absolute vibration of machine structures, including bearing housings, casings, and other mounting locations where casing vibration monitoring is required.

Application areas

• Machinery Monitoring: Structural casing velocity measurement for large turbo-machinery, process compressors, and high-energy centrifugal pumps.
• Power Generation Plants: Mounted on auxiliary equipment blocks, combined-cycle gas turbine packages, and cooling water infrastructure to monitor structural dynamic baselines.
• Chemical Manufacturing: Applied across continuous process chemical lines, mixing reactors, and fertilizer plants where corrosive airborne chemicals demand a completely sealed stainless steel enclosure.

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