Bently 330850-50-00 Proximitor

Technical Specifications

• Sensor Compatibility: Works exclusively with Bently Nevada 3300 XL 25 mm eddy current sensors (probe, extension cable, and proximitor).
• Output Signal: Provides a linear voltage output of 0.787 V/mm (20 mV/mil) or 4–20 mA current loop output (configurable).
• Linear Range: Supports a measurement range of up to 12.7 mm (500 mils), ideal for measuring differential expansion (DE) in steam turbines.
• Operating Temperature:
  • Proximitor: -35°C to +85°C (-31°F to +185°F).
  • Storage: -50°C to +100°C (-58°F to +212°F).
• Power Supply: Requires -17.5 VDC to -26 VDC input, with a maximum current consumption of 12 mA.
• Environmental Protection: Designed to meet IP65 standards (dust-tight and protected against water jets).
• Electromagnetic Compatibility (EMC): Complies with European EMC standards, featuring strong resistance to radio frequency interference (RFI) and electromagnetic interference (EMI).

Key Features

• High Precision: Offers a sensitivity of 0.787 V/mm (20 mV/mil), ensuring accurate and repeatable measurements.
• Robust Design: Constructed with a metal housing and shielded cables to withstand harsh industrial environments, including vibration, shock, and corrosive substances.
• Flexible Installation: Supports both DIN rail and panel mounting options, with spring-loaded terminal blocks for secure and tool-free connections.
• Self-Diagnostic Capabilities: Includes built-in diagnostics to monitor sensor health and detect issues such as cable breaks or excessive gaps, providing real-time feedback for maintenance.
• Interchangeability: Fully compatible with other 3300 XL series components without the need for individual calibration, simplifying system upgrades and replacements.

Functional Characteristics

• Signal Conditioning: Converts high-frequency eddy current signals into standardized outputs, enabling integration with PLCs, DCS, and SCADA systems.
• Multi-Parameter Measurement: Capable of measuring both static (displacement) and dynamic (vibration) parameters simultaneously, offering a comprehensive view of machinery health.
• Advanced Diagnostics: Supports dynamic acceleration waveform output for high-level fault analysis, such as identifying bearing defects or gear mesh issues.
• System Integration: Seamlessly integrates with Bently Nevada’s 3500 monitoring system and other condition monitoring platforms, facilitating centralized data acquisition and analysis.

Application Scenarios
The Bently 330850-50-00 is widely used in various industries for monitoring and protecting critical rotating machinery, including:

• Power Generation: Turbines, generators, and pumps in power plants require continuous vibration monitoring to prevent catastrophic failures and ensure reliable operation.
• Oil and Gas: Compressors, pumps, and pipelines in refineries and offshore platforms benefit from vibration monitoring to detect early signs of wear or imbalance, reducing downtime and maintenance costs.
• Chemical Processing: Large compressors, reactors, and distillation columns rely on vibration probes to maintain safe and efficient operation, preventing costly production interruptions.
• Metallurgy: Rolling mills, extruders, and blast furnaces use vibration monitoring to prevent unexpected downtime, extend equipment life, and improve product quality.
• Water Treatment: Pumps and agitators in water treatment facilities require vibration monitoring to ensure consistent performance, avoid costly repairs, and maintain water quality standards.
• Pulp and Paper: Paper machines, digesters, and pumps use vibration probes to optimize production processes, reduce energy consumption, and improve product quality.
• Steam Turbines: Specifically designed for measuring differential expansion (DE) in medium to large steam turbines, where the difference in expansion rates between the turbine rotor and the machine casing can lead to operational issues.