Bently Nevada 24765-02-00 Case Expansion Transducer Assembly

Product Overview

The Bently Nevada 24765-02-00 Case Expansion Transducer Assembly provides reliable monitoring of turbine casing thermal growth.
It supports critical rotating machinery protection by measuring displacement without physical contact or mechanical wear.
Moreover, this assembly helps operators detect abnormal expansion conditions before misalignment or structural damage occurs.
Designed for harsh industrial environments, it delivers consistent performance across demanding temperature and vibration ranges.

Key Features and Functional Benefits

Non-contact magnetic sensing technology eliminates friction, therefore improving long-term measurement stability and service life.
High sensitivity output ensures accurate expansion readings, even during rapid thermal transients and load changes.
In addition, the robust mechanical construction withstands shock, vibration, and continuous industrial operation.
Seamless compatibility with Bently Nevada monitoring systems simplifies integration into existing protection architectures.

Technical Specifications

Model: Bently Nevada 24765-02-00
Product Type: Case Expansion Transducer Assembly
Linear Measurement Range: ±25.4 mm (±1.00 in)
Linear Range Option: 02 = 50.8 mm (2.00 in) total range
Spring Option: 00 = Without spring return
Scale Factor: 0.404 V/mm (10.25 V/in)
Frequency Response: 15 Hz
Output Signal: Voltage proportional to displacement
Input Impedance: 100 kΩ
Measurement Principle: Non-contact magnetic field displacement sensing
Overall Length: 206 mm (8.1 in)
Body Diameter: 86.6 mm (3.41 in)
Mounting Length: 108.0 mm (4.25 in)
Operating Temperature: -18 °C to +71 °C (0 °F to +160 °F)
Storage Temperature: -54 °C to +93 °C (-65 °F to +200 °F)
Shock Resistance: 250 g for 11 ms
Vibration Resistance: 10 g from 0 to 2 kHz
Weight: 2.3 kg

Typical Applications and System Integration

This transducer assembly is widely used on steam turbines, gas turbines, and large centrifugal compressors.
For instance, it enables precise monitoring of casing expansion during startup, shutdown, and load transitions.
Moreover, integration with protection systems supports early alarms and trend-based predictive maintenance strategies.
It fits power generation, oil and gas, petrochemical, and heavy industrial rotating equipment environments.

Reliability, Support, and Service

Bently Nevada designs this assembly to meet long-term reliability requirements for mission-critical machinery assets.
Therefore, consistent measurement accuracy helps reduce unplanned outages and maintenance-related operational risks.
Proper installation and periodic verification further enhance system confidence and lifecycle performance.

FAQ

Q: What is the primary function of the Bently Nevada 24765-02-00 transducer?
A: It measures turbine or casing expansion to monitor thermal growth and prevent misalignment or mechanical damage.

Q: Does this transducer require physical contact with the measured surface?
A: No, it uses non-contact magnetic field sensing, which reduces wear and improves measurement reliability.

Q: What monitoring systems are compatible with this transducer assembly?
A: It integrates directly with Bently Nevada machinery protection and condition monitoring systems.

Q: Can this transducer operate in high-vibration environments?
A: Yes, it is rated for 10 g vibration up to 2 kHz and high mechanical shock conditions.

Q: Is this product suitable for continuous industrial operation?
A: Yes, it is designed for continuous duty in demanding turbine and rotating machinery applications.