330850-91-00 3300 XL 25 mm Proximitor Sensor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330850-91-00
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330850-91-00 3300 XL 25 mm Proximitor Sensor is designed for advanced turbine and generator monitoring in automated systems. Compatible with one 3300 XL 25 mm Proximity Probe and extension cable, it provides precise measurement over a 12.7 mm linear range with 0.787 V/mm (20 mV/mil) output. The sensor operates from −17.5 Vdc to −26 Vdc without barriers at 12 mA, and −23 Vdc to −26 Vdc with barriers, maintaining output variation under 2 mV/V. Constructed from A380 aluminum, the 330850-91-00 3300 XL 25 mm Proximitor Sensor withstands temperatures from −51°C to +100°C and 100% condensing humidity when connectors are protected. Its 9.0 metre system length and DIN mount allow integration in high-density automation panels. Designed for differential expansion monitoring, the 330850-91-00 3300 XL 25 mm Proximitor Sensor tracks rotor-to-stator displacement and shaft alignment, supporting both single and complementary transducer arrangements. SpringLoc terminals simplify wiring in field installations, while high-temperature ClickLoc connectors on the 3300 XL 25 mm Proximity Probe prevent moisture ingress. This sensor system ensures precise, repeatable measurements in steam turbine DE applications, integrating seamlessly into automated monitoring and control workflows.

Applications

Measuring Differential Expansion in Steam Turbines
The 330850-91-00 3300 XL 25 mm Proximitor Sensor monitors rotor-to-stator displacement in midsize to large steam turbines. Its 0.787 V/mm (20 mV/mil) output and 12.7 mm linear range allow accurate detection of axial movement caused by thermal growth differences.

Rotor Shaft Alignment Verification
Using two 330850-91-00 3300 XL 25 mm Proximitor Sensors, operators can measure radial displacement along a rotor ramp or collar, ensuring precise shaft alignment and preventing misalignment damage.

Integration into Automated Monitoring Systems
The 330850-91-00 3300 XL 25 mm Proximitor Sensor accepts a single 25 mm Proximity Probe and extension cable and fits DIN mounts in high-density panels, allowing automated monitoring of turbine or generator shafts.

Field Testing and Gap Verification
With optional sliding brackets, the 330850-91-00 3300 XL 25 mm Proximitor Sensor can be physically moved along its 9.0 metre system length to verify probe gaps and simulate shaft movement, supporting automated calibration and inspection workflows.

Specifications

Competitive Advantage

High-Precision Output for Automation Control
The 330850-91-00 3300 XL 25 mm Proximitor Sensor maintains less than 2 mV/V supply sensitivity, ensuring repeatable output in automated monitoring applications, enabling precise control and analysis.

Wide Operating Range for Harsh Environments
Operating from −51°C to +100°C and handling 100% condensing humidity with protected connectors, the 330850-91-00 3300 XL 25 mm Proximitor Sensor functions reliably in demanding steam turbine environments.

Long Linear Range for Flexible Mounting
With a 12.7 mm linear range and support for single or complementary transducer setups, the 330850-91-00 3300 XL 25 mm Proximitor Sensor allows flexible installation options for differential expansion monitoring.

Simplified Field Wiring
SpringLoc terminal strips and ClickLoc high-temperature connectors on the 330850-91-00 3300 XL 25 mm Proximitor Sensor reduce installation time and minimize wiring errors in automated panels.

Seamless Upgrade Path
The 330850-91-00 3300 XL 25 mm Proximitor Sensor replaces previous 7200 and 25 mm DE integral systems without changes to monitor configuration, enabling cost-efficient automation upgrades.