Description
- Model: 330876-03-90-00-05
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 XL 50 mm Proximity Transducer Series
- Core Function: Measures axial displacement and differential expansion of rotating machinery
- Type: Eddy Current Proximity Probe Sensor
- Key Specs: 27.9 mm linear range, -24 VDC power supply, high temperature resistance
- Supply Status: In stock
- Stock: Available
- Warranty: 1 year
- Ship From: China
330876-03-90-00-05
Product System Overview
This 330876-03-90-00-05 proximity probe is a vital part of the complete Bently Nevada 3300 XL 50 mm proximity transducer system, a mature and widely applied machinery monitoring solution launched years ago. The full system consists of three core components: proximity probe, extension cable and Proximitor sensor, which work together to form a complete non-contact measurement chain fully compliant with API 670 industrial standards. Designed for large-scale rotating equipment in harsh industrial environments, the whole system features excellent signal stability and anti-interference capability. It can seamlessly connect with Bently Nevada 3500 series monitoring racks, 1900 monitoring units and mainstream industrial DCS, SCADA and PLC control systems, realizing real-time data transmission, operating status display and automatic fault alarm. As a classic monitoring system for power, petrochemical and heavy industry sectors, it has been fully verified by long-term field operation across the globe.
Main Product Functions
Engineered for high-precision non-contact detection, this eddy current proximity probe mainly undertakes accurate measurement of differential expansion and axial displacement of large rotating machinery. It adopts eddy current sensing technology to detect the gap change between the probe tip and the metal target surface without making physical contact, effectively avoiding mechanical wear and measurement deviation caused by friction. In steam turbines, large compressors and other key equipment, it continuously tracks thermal expansion changes between rotor and casing during unit startup, operation and shutdown. It converts physical displacement data into standard analog electrical signals and transmits the signals to the rear monitoring system for real-time analysis. Meanwhile, it assists the whole monitoring system to set safety threshold values, trigger alarm signals or interlock protection actions once the displacement exceeds the safe range, so as to prevent mechanical collision, component damage and major equipment failures, and guarantee the safe and continuous operation of production units.
Product Features & Advantages
Boasting outstanding performance and reliable build quality, this probe stands out in various harsh working conditions. Firstly, it delivers an extended linear measuring range of 27.9 mm, perfectly adapting to large displacement changes generated by heavy rotating machinery during thermal expansion. It supports standard -24 VDC industrial power supply, matching the universal power configuration of on-site monitoring systems. Secondly, it features superior high-temperature resistance, capable of stable long-term operation under high temperature environments commonly seen in turbine workshops. Equipped with dual sealing structure and professional oil-proof, moisture-proof design, it can resist erosion from lubricating oil, water vapor and dust in industrial sites, greatly extending service life. The built-in anti-vibration structure and ClickLoc quick connector ensure firm connection and stable signal output even under strong mechanical vibration. In addition, it maintains high measurement accuracy and repeatability throughout the full measuring range, with low signal drift and strong electromagnetic interference resistance. Its standardized interface and dimensions enable easy installation, replacement and maintenance, making it an ideal spare part for daily maintenance, system renovation and equipment upgrade of legacy monitoring systems.
Application Scenarios
This proximity probe is widely used in multiple high-end industrial fields with strict requirements for machinery condition monitoring. The most typical application is differential expansion monitoring of large steam turbines in thermal power plants and combined cycle power stations. It is also extensively deployed on large centrifugal compressors, industrial gas turbines and high-speed rotating equipment in petrochemical, oil and gas industries. Besides, it serves for state monitoring of large fans, blowers and other rotating machinery in metallurgy and water treatment industries. For all kinds of key rotating equipment that need long-term online condition monitoring and safety protection, this probe provides solid and reliable measuring support, helping enterprises reduce unplanned shutdown losses and realize predictive maintenance of equipment.
