Technical Specifications

Operating Temperature: –40 ℃ to +121 ℃ (industrial-grade operating range)

Output Signal: DC voltage signal, linearly proportional to displacement

Power Supply: Provided by Bently Nevada 3500/20M or compatible monitoring modules

Core Functions and Features
Accurate Shell Expansion Measurement

Provides real-time measurement of casing thermal expansion and contraction during equipment startup, shutdown, and load changes. Effectively prevents faults such as rotor-to-stator contact and bearing overload, enhancing overall machinery protection.

Spring-Reset Self-Calibration Design

Equipped with a built-in spring reset mechanism. After cooling, the sensor automatically returns to its reference position without manual readjustment, improving maintenance efficiency. Particularly suitable for peak-shaving units and applications with frequent start–stop cycles.

High Signal Stability and Reliability

The DC LVDT features a robust anti-electromagnetic interference design, ensuring stable and accurate signal output in high-voltage industrial environments. The output can be directly interfaced with monitoring systems such as Bently Nevada 3500/20M, simplifying system integration.

Typical Applications
Applicable Equipment

Steam turbines

Generators

Large compressors

Industry Applications

Designed for rotating machinery requiring precise thermal expansion (shell expansion) monitoring, especially critical units in:

Power generation

Petrochemical plants

Metallurgical facilities

Bently Nevada 24765-02-01｜Case Expansion Transducer Systems｜