200350-12-00-00 Piezoelectric Accelerometer – Bently Nevada Vibration Sensor

Product Overview

The Bently Nevada 200350-12-00-00 is a high-precision piezoelectric accelerometer engineered for seismic vibration monitoring on rotating industrial machinery. This sensor is specifically designed to detect and measure high-frequency acceleration, making it an essential tool for monitoring casing vibration on equipment equipped with rolling-element bearings. By converting mechanical vibration into a proportional electrical signal, it enables the early detection of mechanical anomalies such as bearing degradation, gear mesh issues, and cavitation.

This model is a core component of Turbine Supervisory Instrumentation (TSI), providing the critical data required for machinery protection and predictive maintenance. Its design prioritizes signal purity and structural durability, ensuring that plant operators receive accurate information even in the presence of significant background noise or electromagnetic interference.

Key Technical Characteristics

The 200350-12-00-00 is built to withstand the rigorous conditions of heavy industrial environments while maintaining high-fidelity data output.

• Advanced Sensing Technology: Utilizes piezoelectric crystals in a shear-mode configuration to minimize sensitivity to base strain and thermal transients, ensuring stable measurements.

• Broad Frequency Response: Optimized to capture high-frequency vibration data that proximity probes might miss, essential for comprehensive diagnostic analysis.

• Self-Shielded Construction: The sensor features an internally isolated design to prevent ground loops and shield the signal from industrial electrical noise.

• Ruggedized Housing: Encased in a hermetically sealed, corrosion-resistant stainless steel body, allowing for reliable operation in high-humidity or chemically aggressive atmospheres.

• TSI System Compatibility: Fully compatible with Bently Nevada 3500 and 3300 series monitoring racks, specifically interfacing with vibration monitor modules like the 3500/42M.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 200350-12-00-00

• Transducer Type: Piezoelectric Accelerometer

• Sensitivity: Typically 100 mV/g (Standard Scale Factor)

• Frequency Range: High-frequency seismic measurement capability

• Enclosure Material: 316L Stainless Steel (Hermetically Sealed)

• Mounting Configuration: 1/4-28 UNF Threaded Hole

• Environmental Rating: Suitable for hazardous and high-heat zones

• Weight: Approximately 0.09 kg (sensor only)

Industrial Applications

The 200350-12-00-00 accelerometer is widely deployed across sectors where unplanned downtime leads to significant financial loss. Typical applications include:

• Monitoring bearing housing vibration on steam and gas turbines.

• Protection of centrifugal and axial compressors.

• Condition monitoring for industrial gearboxes and cooling tower fans.

• Performance tracking of high-speed electric motors and boiler feed pumps.