Precision Machinery Protection at the Core of Your Monitoring System
The Bently Nevada 3500/40-01-01 3500/40M Proximitor Monitor is a high-performance four-channel monitoring module developed for continuous machinery protection and condition monitoring. Designed for use within the renowned 3500 Machinery Protection System, it receives signals from Bently Nevada proximity transducers, processes critical vibration and position data, and continuously compares measurements against configurable alarm thresholds.
Ideal for mission-critical rotating equipment, the 3500/40M delivers reliable real-time diagnostics that help maintenance teams detect abnormal operating conditions early, reduce unplanned downtime, and improve overall equipment reliability. Its flexible configuration and advanced signal processing make it a trusted solution across power generation, oil & gas, petrochemical, and heavy industrial facilities.
Performance Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Product Model | 3500/40-01-01 |
| Product Family | 3500 Series |
| Module Type | 3500/40M Proximitor Monitor |
| Monitoring Channels | 4 Channels |
| Input Signals | 1–4 Proximity Transducer Inputs |
| Measurement Functions | Radial Vibration, Thrust Position, Differential Expansion, Eccentricity, REBAM |
| Power Consumption | Typical 7.7 W |
| Input Impedance | 10 kΩ (Standard I/O) |
| Transducer Power Supply | -24 VDC |
| Operating Temperature | -30°C to +65°C (Standard I/O) |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | Up to 95%, Non-condensing |
| Dimensions (H × W × D) | 241.3 × 24.4 × 241.8 mm (9.50 × 0.96 × 9.52 in) |
| Weight | 0.91 kg (2.0 lb) |
Industrial Applications
The 3500/40M Proximitor Monitor is engineered for machinery protection systems that require continuous and accurate shaft vibration and position monitoring.
Typical applications include:
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Steam and gas turbines
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Centrifugal compressors
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Industrial pumps
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Electric motors
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Generators
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Gearboxes
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Blowers and fans
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Petrochemical processing units
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Offshore production platforms
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Power generation facilities
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Mining and cement production equipment
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Water treatment plants
Outstanding Features and Benefits
The 3500/40M has earned industry recognition for its dependable monitoring performance and flexible configuration capabilities.
Key advantages include:
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Four independent monitoring channels for comprehensive machine protection
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Supports multiple vibration and shaft position measurement modes
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Fast signal conditioning with programmable alarm setpoints
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Flexible configuration using 3500 Rack Configuration Software
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Continuous real-time monitoring for critical rotating assets
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High measurement accuracy and stable long-term performance
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Seamless integration within the 3500 Machinery Protection System
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Front-panel buffered outputs for convenient diagnostics
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Industrial-grade reliability for 24/7 operation
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Helps minimize maintenance costs through predictive monitoring and early fault detection.
Technical FAQs
1. What is the primary purpose of the 3500/40-01-01 module?
It continuously monitors vibration and shaft position signals from proximity transducers to protect rotating machinery and provide early fault detection.
2. How many monitoring channels are available?
The module features four independent monitoring channels that can be configured in channel pairs.
3. Which measurement functions are supported?
It supports radial vibration, thrust position, eccentricity, differential expansion, and REBAM monitoring.
4. Can each channel be configured independently?
Channels are configured in pairs, allowing different measurement functions to be assigned depending on application requirements.
5. Which sensors are compatible with this monitor?
The monitor is designed to work with Bently Nevada proximity probes and Proximitor transducer systems.
6. Does the module provide programmable alarms?
Yes. Users can configure both Alert and Danger alarm setpoints for monitored parameters.
7. Is it suitable for continuous industrial operation?
Yes. It is specifically designed for continuous monitoring in demanding industrial environments where high system availability is required.
8. What are the module dimensions and weight?
The monitor measures 241.3 × 24.4 × 241.8 mm and has a typical weight of 0.91 kg (2.0 lb).
9. What industries commonly use the 3500/40M?
It is widely deployed in power generation, oil & gas, petrochemical, mining, marine, paper, and general process industries.
10. Why is the 3500/40M considered a preferred machinery protection solution?
Its proven reliability, advanced signal processing, configurable monitoring functions, and seamless integration with the 3500 platform make it a dependable choice for protecting high-value rotating equipment.
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