Bently Nevada 24765-02-01 Case Expansion LVDT Transducer

Bently Nevada 24765-02-01 Case Expansion Transducer Assembly (DC)

Bently Nevada 24765-02-01 is a precision DC LVDT case expansion transducer assembly. It supports accurate axial and radial displacement monitoring in rotating machinery systems. This assembly delivers stable output signals under demanding industrial conditions.

The unit suits turbine monitoring, compressor protection, steam turbine supervision, and critical machinery diagnostics. Its rugged stainless-steel construction improves reliability in harsh environments.

Product Overview

• Brand: Bently Nevada
• Model: 24765-02-01
• Product Type: Case Expansion Transducer Assembly (DC)
• Technology: DC LVDT displacement measurement
• Measurement Function: Case expansion and mechanical displacement monitoring
• Spring Option: With spring return
• Country of Manufacture: United States
• Industrial Application: Turbine and rotating machinery protection systems

Global PLC Spare HUB's Insight

24765 Series transducers support continuous machinery expansion measurement with high repeatability. Engineers often select this series for steam turbines and compressors requiring stable displacement feedback.

The DC LVDT architecture reduces signal drift during long operating cycles. The spring-return structure simplifies alignment during installation and maintenance.

This model integrates efficiently with vibration monitoring racks, turbine supervisory systems, and machinery protection platforms. It performs reliably in power generation, petrochemical, and heavy-process automation environments.

Technical Specifications

• Brand: Bently Nevada
• Model Number: 24765-02-01
• Series: 24765 DC LVDT Assembly Series
• Input Power: +24 VDC, 30 mA minimum
• Measurement Range: ±25.4 mm (±1.00 in)
• Total Linear Range: 50.8 mm (2.00 in)
• Sensitivity: 0.404 V/mm (10.25 V/in)
• Frequency Response: 15 Hz (-3 dB)
• Linearity: ±0.5% full range
• Signal Ripple: Less than 1% full scale
• Stability: 0.125% full scale
• Scale Factor Temperature Coefficient: 0.07%/°C
• Minimum Load Resistance: 100 kΩ
• Resolution Capability: High-resolution analog displacement output
• Anti-Interference Capability: Stable DC signal output with low ripple design
• Body Material: Series 400 magnetic stainless steel
• Coil Material: Laminated glass epoxy
• Lead Wire: 25 AWG stranded copper with Teflon insulation
• Lead Length: 31 cm (12 in)
• Operating Temperature: -25°C to +85°C
• Storage Temperature: -55°C to +125°C
• Shock Resistance: 250 g for 11 ms
• Vibration Resistance: 10 g at 0 to 2 kHz
• Height: 88.9 mm (3.50 in)
• Width: 117 mm (4.60 in)
• Length: 241 mm (9.50 in)
• Weight: 2.3 kg
• Shipping Weight: 4 kg
• Thread Type: 6-40 UNF-2B core end
• Machine End Thread: 1/4-20 UNC-2A

Configuration Breakdown

• 24765 = DC LVDT Case Expansion Transducer Assembly
• 02 = 50.8 mm (2.00 in) linear range option
• 01 = Spring return option

Typical Application Scenarios

• Steam turbine case expansion monitoring
• Gas turbine displacement supervision
• Compressor thermal growth measurement
• Generator shaft expansion monitoring
• Rotating machinery protection systems
• Power plant turbine supervisory instrumentation
• Petrochemical process equipment diagnostics
• Industrial vibration and displacement monitoring platforms

Diagnostic Capabilities

• Supports early detection of abnormal thermal expansion
• Improves predictive maintenance efficiency
• Helps identify casing distortion trends
• Enhances turbine protection response accuracy
• Supports long-term machinery condition monitoring
• Reduces unexpected shutdown risks

Installation Guidelines

• Install the assembly on a rigid mounting surface
• Verify proper plunger alignment before operation
• Avoid excessive side loading during installation
• Use shielded wiring for improved signal stability
• Maintain recommended cable routing practices
• Confirm correct power polarity before energizing
• Inspect thread engagement during final tightening

Commissioning and Maintenance Convenience

• Spring-return structure simplifies mechanical positioning
• Low-ripple analog output supports stable calibration
• Teflon-insulated leads improve long-term durability
• Minimal routine maintenance requirements
• Supports fast signal verification during startup
• Simplifies troubleshooting in protection systems

Compatibility Information

• Compatible with Bently Nevada monitoring systems
• Supports turbine supervisory instrumentation interfaces
• Suitable for industrial PLC and DCS integration
• Works with machinery protection monitoring racks
• Supports analog displacement input modules

Certification and Compliance Information

• Manufactured to industrial instrumentation standards
• Designed for industrial rotating equipment environments
• Suitable for vibration and machinery monitoring applications
• Built using industrial-grade materials for reliability

Packing List

• 1 × Bently Nevada 24765-02-01 Transducer Assembly
• 1 × Factory inspection documentation
• 1 × Protective industrial packaging set

Shipping Information

• Worldwide shipping available
• Fast delivery through FedEx, UPS, and DHL
• Typical dispatch time: 24-48 hours
• Protective export packaging included
• Tracking information provided after shipment

Warranty Terms

• 12-month warranty coverage
• Technical support available during warranty period
• Quality inspection completed before shipment
• Professional packing improves transport protection

FAQ

Which systems support the 24765-02-01 transducer?

The transducer supports Bently Nevada monitoring systems, turbine supervisory systems, and compatible PLC or DCS analog interfaces.

What is the main function of this assembly?

It measures machinery case expansion and thermal displacement in rotating equipment applications.

Does this model support high-vibration environments?

Yes. The assembly withstands vibration levels up to 10 g between 0 and 2 kHz.

Why do engineers prefer DC LVDT technology?

DC LVDT designs provide stable analog output and reduced signal drift during long operating periods.

What installation issue appears most frequently?

Incorrect plunger alignment often affects measurement accuracy and long-term stability.

How can users improve signal reliability?

Use shielded cables and separate sensor wiring from high-voltage power lines.

How should users select the correct expansion transducer?

Select the model according to expansion range, mounting structure, environmental conditions, and monitoring system compatibility.

Which industries commonly use this series?

Power generation, petrochemical processing, heavy industry, and turbine machinery applications commonly use this series.

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