330850-51-05 3300 XL 25 mm Proximitor Sensor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330850-51-05
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330850-51-05 3300 XL 25 mm Proximitor Sensor is a DIN-mount eddy-current signal conditioner designed for turbine monitoring and automated control systems. The 330850-51-05 3300 XL 25 mm Proximitor Sensor accepts one non-contacting 25 mm probe with extension cable and converts axial shaft movement into a 0.787 V/mm output across a 12.7 mm linear range. Operating on −17.5 to −26 Vdc at 12 mA with a 50 Ω output, the 330850-51-05 3300 XL 25 mm Proximitor Sensor transmits precise readings to DCS, PLC, or vibration monitoring systems. Its A380 aluminum housing supports operation from −51°C to +100°C and tolerates 100% condensing humidity when connectors are protected, allowing continuous measurement of differential expansion in steam turbines. The 330850-51-05 3300 XL 25 mm Proximitor Sensor features low supply sensitivity (<2 mV/V) to maintain accurate voltage output during DC power fluctuations. Approved for multiple agencies, the 330850-51-05 3300 XL 25 mm Proximitor Sensor integrates seamlessly with automated protection loops, enabling real-time rotor growth monitoring and axial movement verification during startup, load changes, or shutdown sequences.

Applications

Measure differential expansion in steam turbines
The 330850-51-05 3300 XL 25 mm Proximitor Sensor tracks rotor-to-casing axial growth. Its 12.7 mm linear range allows operators to detect expansion during load changes and trigger alarms or control actions.

Monitor generator shaft position
By sending 0.787 V/mm displacement signals to DCS or PLC systems, the 330850-51-05 3300 XL 25 mm Proximitor Sensor provides real-time shaft position readings for startup, shutdown, and load transitions.

Observe compressor rotor movement
The 330850-51-05 3300 XL 25 mm Proximitor Sensor monitors collars or ramps on high-speed compressor rotors. Its A380 aluminum housing and temperature range up to +100°C allow installation close to hot machinery without signal degradation.

Specifications

Competitive Advantage

Transmit accurate signals over long distances
The 50 Ω output of the 330850-51-05 3300 XL 25 mm Proximitor Sensor enables direct wiring from turbine decks to control panels without amplifiers.

Operate in high-temperature environments
The 330850-51-05 3300 XL 25 mm Proximitor Sensor tolerates continuous +100°C operation and intermittent peaks up to +105°C, allowing mounting near thrust bearings or rotors.

Maintain accuracy during power fluctuations
With less than 2 mV/V supply sensitivity, the 330850-51-05 3300 XL 25 mm Proximitor Sensor preserves precise 0.787 V/mm displacement readings during DC voltage changes.

Function in humid conditions
The sealed 330850-51-05 3300 XL 25 mm Proximitor Sensor operates in 100% condensing humidity environments when connectors are protected, enabling installation in turbine halls and process areas without additional enclosures.