3500/40M-01-00 4-Channel Proximitor Monitor Bently Nevada

Product Overview: Machine Protection Core

• The 3500/40M-01-00 is a high-precision four-channel monitor designed for the Bently Nevada 3500 Rack system.
• It processes signals from proximity transducers to provide continuous machinery protection and monitoring.
• The 3500/40M-01-00 tracks radial vibration, thrust position, eccentricity, and differential expansion.
• This module converts transducer inputs into actionable data for critical alarm and safety shutdown functions.

Configuration Breakdown & Hierarchy

• Root Module: 3500/40M (Proximitor Monitor Main Board)
•     └── Option -01: I/O Module Type
•         ├── Hardware: Proximitor I/O Module
•         └── Termination: Internal Terminations (Integrated wiring interface)
•     └── Option -00: Agency Approval
•         └── Certification: None (Standard non-hazardous area configuration)

Global PLC Spare HUB's Insight

• The 3500/40M-01-00 is the industry standard for high-reliability turbomachinery protection.
• Engineers prefer the -01 internal termination variant for its space-saving design and simplified field wiring.
• The advanced filtering capabilities, including Not 1X and Constant Q notch filters, allow for surgical vibration analysis.
• It is an essential component for any SIL-rated safety loop protecting multi-million dollar rotating assets.

Detailed Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Number: 3500/40M-01-00
• Input Capacity: 1 to 4 Proximity Transducer Signals
• Input Impedance: 10 kΩ (Standard I/O)
• Power Consumption: 7.7 Watts Typical
• Transducer Power: -24 Vdc
• Accuracy (Direct/Gap): Within ±0.33% of full-scale typical
• Frequency Response: Programmable 4 Hz to 4000 Hz or 1 Hz to 600 Hz
• Output Impedance: 550 Ω (Buffered Outputs)
• Dimensions: 24.13cm x 2.44cm x 24.18cm
• Weight: 0.91 Kg (2.0 lb)

Diagnostic Capabilities & Indicators

• OK LED: Indicates the 3500/40M-01-00 is operating properly and passed self-tests.
• TX/RX LED: Flashes to show active communication with other modules in the 3500 rack.
• Bypass LED: Visual confirmation when the monitor is in Bypass Mode for maintenance.
• Buffered Outputs: Front-panel coaxial connectors provide short-circuit protected raw signals for analyzers.
• Vector Filtering: High-accuracy 1X and 2X vector filtering for phase and amplitude tracking.

Target Equipment & Application Scenarios

• Steam & Gas Turbines: Critical monitoring of radial shaft vibration and axial thrust position.
• Centrifugal Compressors: Detection of aerodynamic instabilities and surge prevention.
• Electric Motors: Real-time assessment of sleeve bearing health and rotor eccentricity.
• Hydro-Turbines: Specialized monitoring for low-frequency vibration and REBAM applications.

Logistics & Warranty Terms

• Express Logistics: Worldwide priority shipping via FedEx, UPS, and DHL.
• Dispatch Time: Guaranteed shipment within 24-48 hours of order verification.
• Warranty Policy: Protected by a full 12-month technical warranty against defects.
• Package Contents: One 3500/40M Monitor and one -01 Internal Termination I/O module.

Professional FAQ & Selection Guide

• Does the 3500/40M-01-00 support all proximity probe types?
• It is compatible with most Proximitor systems (5mm, 8mm, 11mm) when configured for the correct sensitivity.


• What is the primary benefit of the Internal Termination (-01) option?
• It places field wiring terminals directly on the I/O module, reducing the need for external terminal blocks.


• Can I mix different measurement types on one module?
• Yes, each of the four channels can be independently programmed for Thrust, Vibration, or Eccentricity.


• Selection Guide: Why choose the 3500/40M over a 3500/42M?
• The 3500/40M-01-00 is optimized for proximity signals; the 42M is for seismic or velocity transducers.


• Experience Tip: Why is the OK LED flashing on my module?
• A flashing OK LED usually indicates the module is not configured or there is a software parameter mismatch.

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