24765-02-01 Bently Nevada signal conditioning module

• Brand
  Bently Nevada
• Model
  24765-02-01
• Product Name
  High Precision Turbine Case Expansion LVDT Displacement Transducer
• Country of Origin
  United States
• HS Code
  8543709090
• Dimensions
  Height: 88.9mm (3.50 inch); Width: 117mm (4.60 inch); Length: 241mm (9.50 inch)
• Weight
  2.3kg (5.0 lbs)
• Operating Temperature
  -54°C ~ +93°C
• Storage Temperature
  -52°C ~ +177°C
• Power Supply
  24vdc
• Warranty
  12 month
• Product Status
  New and original

Bently Nevada 24765-02-01 Case Expansion LVDT Transducer Technical Specification

Power Supply Parameters

Rated Excitation Input Voltage: +24VDC DC power supply

Minimum Operating Current: 30mA; Max working current ≤45mA

Power Consumption: ≤1.1W low power consumption design

Measurement & Output Electrical Index

1. Linear Measuring Range: ±25.4mm (Total full stroke 50.8mm / 2.0 inch)

2. Scale Factor (Sensitivity): 0.404 V/mm (10.25 V/inch)

3. Standard Output Signal: 0 ~ +5VDC linear analog voltage signal

4. Non-Linearity Error: Less than ±0.25% of full scale range

5. Long-Term Stability: Drift ≤ 0.125% FS full scale

6. Temperature Drift Coefficient: 0.05% / °C

7. -3dB Response Frequency: 15Hz low-pass frequency characteristic, filtering high-frequency vibration interference

8. Output Impedance: Nominal 7kΩ; Minimum load resistance required ≥100kΩ

Bently Nevada 24765-02-01 Detailed Wiring Instructions

1. Three-Core Built-in Cable Standard Wiring Definition

Three internal lead wires follow official color marking definition:

Red Wire: +24VDC Excitation Power Positive Terminal

Black Wire: DC Power Supply Ground / Negative Pole

White Wire: 0~5VDC Analog Signal Output Line

2. Field External Extension Cable Wiring Requirements

Adopt shielded twisted pair high-temperature cable for on-site extended wiring

Shield layer of signal cable implements single-end grounding on control cabinet side, floating grounding at sensor terminal to eliminate interference

Power supply cable and signal cable are laid separately in different wire trunkings to avoid cross electromagnetic coupling interference

3. Connection Wiring to Bently Nevada 3500 Monitoring Module

Signal output wire connects analog input channel terminal of 3500/42 case expansion monitor module; power line is connected to rack isolated +24V DC power supply inside control cabinet.

Ground wire must be reliably connected to cabinet equipotential grounding busbar to ensure measurement stability.

Bently Nevada 24765-02-01 Core Product Advantages

1. Professional dedicated for turbine casing thermal expansion measurement, accurately monitor differential expansion between rotor and casing to prevent serious rubbing accidents

2. LVDT non-contact measurement principle, no mechanical wear inside sensor, ultra-long service life for continuous industrial operation

3. Excellent high temperature resistance, perfectly adapt to high temperature environment near turbine cylinder body

4. Ultra-low linear error and temperature drift, guarantee long-term measurement accuracy without frequent calibration

5. Robust stainless steel shell, outstanding anti-vibration, anti-shock and anti-corrosion ability for harsh petrochemical & power plant site

6. Perfect compatibility with Bently Nevada 3500/3300 series monitoring system, plug-and-match supporting system protection logic

7. Integrated complete EMC electromagnetic compatibility design, stable signal output under strong electromagnetic interference of power plant field

8. Passed CE, UL, ATEX hazardous area safety certification, meets international power industry machinery protection API 670 standard

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