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BENTLY
BENTLY 3701-55 Proximitor Sensor Signal Conditioner
  • Warehouse: Spot
  • Warranty: 365 days
  • Quality: Original module
  • Condition: New
  • Shipping method: Courier delivery

  • Contact person: LI MING
  • Contact number: +86 18059884790
  • WeChat:18059884790
  • E-mail: plc66@qq.com

Product Description


Product: BENTLY 3701-55
BENTLY 3701-55 Proximitor Sensor Signal Conditioner for Machinery Vibration Monitoring

The BENTLY 3701-55 is a high-precision Proximitor sensor signal conditioner engineered by Bently Nevada for industrial machinery vibration and position monitoring applications. As a critical interface between Bently proximity sensors and monitoring systems, this compact module provides stable, calibrated signal conditioning for eddy current sensor outputs in harsh industrial environments (-40°C to 85°C). It features fixed 24V DC excitation for proximity probes, linear signal conversion, and robust electrical isolation, converting raw sensor displacement signals into industry-standard voltage outputs (0-10V DC) for machinery health monitoring systems. Designed for rugged industrial use, it offers high EMI/RFI immunity, corrosion-resistant packaging, and direct integration with Bently 3500/1900 Series monitoring systems, ensuring accurate measurement of shaft displacement, radial vibration, and axial position for rotating machinery in power generation, oil & gas, and manufacturing industries.

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Core Functions:
  • Precision 24V DC constant current excitation for Bently 3300/3700 Series proximity probes (eddy current sensors)
  • Linear signal conversion (0-200 mil displacement → 0-10V DC output) with ±0.1% full-scale accuracy
  • Galvanic isolation (1000V AC) between sensor input and signal output to eliminate ground loops and electrical interference
  • Built-in overvoltage/short-circuit protection for sensor and monitoring system protection
  • High EMI/RFI immunity (up to 80dB attenuation) for reliable operation in high-noise industrial environments
  • Continuous self-diagnostic monitoring (sensor open/short circuit) with fault signal output
  • Compact DIN-rail mountable design for easy installation in control cabinets and machinery enclosures
  • Compliance with industrial standards (UL, CE, ATEX) for use in hazardous and general industrial areas


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Application Scenarios:
  • Shaft displacement and radial vibration measurement for gas turbines in combined-cycle power plants
  • Axial position monitoring for centrifugal compressors in oil & gas refineries and pipeline compression stations
  • Bearing vibration measurement for large electric motors and pumps in petrochemical processing facilities
  • Shaft runout and eccentricity monitoring for steam turbines in thermal power generation plants
  • Rotating machinery position sensing for mining equipment (crushers, mill drives, conveyor motors)
  • Propeller shaft vibration monitoring for marine engines and offshore platform propulsion systems
  • Gearbox shaft displacement measurement for steel mill rolling mill drives and cement plant kiln drives
  • Reciprocating compressor crosshead position monitoring in natural gas processing facilities


YMGK Purchase Information


This section covers key details customers care about regarding purchasing, to support your global industrial product procurement needs.
One-Stop Global Industrial Product Procurement
Sales Manager: KI MI
WeChat: 18059884790
Email: plc66@qq.com
  • Global Inventory: 121 shared inventories worldwide,

  • enabling direct procurement from overseas warehouses for faster delivery.

  • Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
  • Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom,

  • France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium,

  • Austria, and Turkey.

  • Product Quality: All items are brand new and original. Spare parts include a 1-year warranty,

  • and all products are tested and certified.

  • Discounts: Contact us for bulk-order discounts.

  • We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.

For additional inquiries, reach out to us at any time.
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