330850-51-CN 3300 XL 25 mm Proximitor Sensor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330850-51-CN
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-CN 3300 XL 25 mm Proximitor Sensor is a high-precision transducer designed for automation systems in steam turbines and generators. It accepts a single 3300 XL 25 mm Proximity Probe and extension cable, providing a 0.787 V/mm output over a 12.7 mm linear range. The 330850-51-CN 3300 XL 25 mm Proximitor Sensor operates at −17.5 to −26 Vdc, with less than 2 mV/V supply sensitivity and 50 Ω output resistance for accurate signal transmission. Built from A380 aluminum, the 330850-51-CN 3300 XL 25 mm Proximitor Sensor withstands −51°C to +100°C and 100% condensing humidity when connectors are protected. Its compact DIN mount design allows installation in tight control panels, while SpringLoc terminals enable fast field wiring. The 330850-51-CN 3300 XL 25 mm Proximitor Sensor measures differential expansion by monitoring rotor-to-casing displacement and supports single or complementary transducer arrangements. Its panel mount capability and multiple approvals make the 330850-51-CN 3300 XL 25 mm Proximitor Sensor suitable for integration into turbine monitoring, generator axial tracking, and compressor shaft alignment systems.

Applications

Differential Expansion Measurement
The 330850-51-CN 3300 XL 25 mm Proximitor Sensor monitors differential expansion on steam turbine rotors by tracking displacement between the rotor and stator. Its 0.787 V/mm output over a 12.7 mm linear range ensures precise measurement of rotor axial movement.

Axial Shaft Alignment Monitoring
Using the 330850-51-CN 3300 XL 25 mm Proximitor Sensor with a 3300 XL 25 mm Proximity Probe allows real-time observation of shaft alignment in large generators. Its operation from −17.5 Vdc to −26 Vdc ensures consistent readings during power fluctuations.

Compressor and Turbine Rotor Gap Tracking
The 330850-51-CN 3300 XL 25 mm Proximitor Sensor measures rotor-to-casing gaps in compressors and turbines, detecting changes during start-up or load transitions. Its 50 Ω output resistance maintains signal integrity over the extension cable.

Integration in Automation Control Panels
The DIN-mount design of the 330850-51-CN 3300 XL 25 mm Proximitor Sensor enables compact panel installation, supporting automated turbine and generator monitoring systems without extensive cabinet modification.

Specifications

Competitive Advantage

High-Temperature Operation
The 330850-51-CN 3300 XL 25 mm Proximitor Sensor withstands −51°C to +100°C while maintaining accuracy, supporting harsh steam turbine environments up to 250°C intermittently.

Moisture Protection for Probes
Paired with a 3300 XL 25 mm Proximity Probe, the 330850-51-CN 3300 XL 25 mm Proximitor Sensor uses front and rear seals and FluidLoc cables to prevent moisture ingress, ensuring reliable signal measurement under condensing humidity.

Flexible Mounting Options
The 330850-51-CN 3300 XL 25 mm Proximitor Sensor supports both DIN rail and panel mount configurations, allowing integration into high-density automation panels or traditional monitoring systems with minimal modification.

Consistent Signal Output
With supply sensitivity under 2 mV/V and 50 Ω output resistance, the 330850-51-CN 3300 XL 25 mm Proximitor Sensor provides stable voltage output, enabling accurate data acquisition and seamless integration with existing monitoring systems.