Bently Nevada 24765-03-01 Case Expansion Transducer DC – 101.6mm Range

Bently Nevada 24765-03-01 Case Expansion Transducer Assembly (DC)

Product Description
The Bently Nevada 24765-03-01 is a DC-operated case expansion transducer assembly. It measures relative casing expansion in turbines, compressors, and rotating machinery. This LVDT-based device offers a 101.6 mm linear range and a scale factor of 0.143 V/mm. It operates on +24 Vdc, 30 mA minimum, and maintains ±0.5% full-range linearity. With an operating temperature range from -18 °C to +71 °C, it suits harsh industrial environments. The unit includes a spring return option for reliable plunger positioning. It is manufactured in the U.S.A. and built with Series 400 magnetic stainless steel.

Typical Applications
This transducer monitors differential expansion in steam and gas turbines. It also measures case expansion in large compressors and centrifugal pumps. Use it for thermal growth monitoring in power generation and oil & gas plants. It assists in predictive maintenance and machine protection systems. The device integrates with Bently Nevada vibration monitoring systems.

Technical Specifications

Installation & Compatibility

• Spring return option (01) ensures plunger preload.
• Plunger length is application-specific; refer to dimensional drawings.
• Compatible with Bently Nevada monitoring systems.
• DC LVDT electrical scale factor: 0.404 V/mm (10.25 V/in) for assembly.
• Electrical linear range: 50.8 mm (2.00 in) for DC LVDT assembly.
• Electrical -3 dB frequency: 15 Hz for DC LVDT assembly.

Diagnostic Capabilities

• Provides real-time casing expansion data.
• Detects thermal growth and mechanical drift.
• Assists in rotor-to-stator clearance monitoring.
• Supports predictive maintenance strategies.

Environmental & Mechanical Limits

• Operating Temp (alternate): -25 °C to +85 °C (-13 °F to +185 °F)
• Storage Temp (alternate): -55 °C to +125 °C (-67 °F to +257 °F)
• Shock (alternate): 250 g for 11 ms
• Vibration (alternate): 10 g @ 0 to 2 kHz
• Body: Series 400 magnetic stainless steel.
• Coil: Laminated glass epoxy.

Certification & Quality

• Made in U.S.A.
• Tested industrial surplus / refurbished options available.
• Technical verification before shipment.
• 12-month warranty included.

Package Contents

• 24765-03-01 Transducer Assembly (DC) – 1 unit
• Spring return (01 option) – installed
• Lead wire assembly (31 cm)
• Installation instructions (reference datasheet)

Shipping & Delivery

• Global shipment support.
• Carriers: FedEx, UPS, DHL.
• Shipping weight: 2.7 kg (6.0 lbs) for complete assembly.

Why Buy From Oiltech Controls?

• 15+ years industrial automation spare parts experience.
• Global shipment support – fast and reliable.
• Tested industrial surplus / refurbished options.
• 12-month warranty on every product.
• Technical verification before shipment ensures performance.
• Support for obsolete control systems.
• Direct contact for inquiries: info@oiltechcontrols.com | +86 158 8020 0923

Frequently Asked Questions

Q: What is the linear range of this transducer?
A: 101.6 mm (4.00 in) with scale factor 0.143 V/mm.

Q: Does it operate in high-temperature environments?
A: Yes, operating range -18 °C to +71 °C.

Q: Is the spring return included?
A: Yes, model 24765-03-01 includes spring return.

Q: What power supply is needed?
A: +24 Vdc, 30 mA minimum.

Q: Can this replace older Bently Nevada transducers?
A: It is compatible with most Bently Nevada systems; verify mechanical dimensions.

Q: What is the warranty period?
A: 12 months from Oiltech Controls.

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