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- Bently Nevada
- 3500/40-01-00 125680-01
- Proximitor Monitor
- USA
- 241 mm × 24.4 mm × 241 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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Bently Nevada 3500/40-01-00 (125680-01) Proximity Monitor Module Detailed Product Description
1. Product Introduction
The Bently Nevada 3500/40-01-00 (125680-01) is a four-channel Proximity Monitor Module designed for continuous monitoring and protection of critical rotating machinery. It is a key component within the 3500 Machinery Protection System Series and is mainly used for measuring shaft displacement, radial vibration, and mechanical position changes through eddy current proximity probe technology.
This module is designed for applications where equipment reliability, operational safety, and predictive maintenance are essential. It continuously collects signals from proximity probes installed near rotating shafts and processes the information to identify abnormal operating conditions.
The 3500/40-01-00 (125680-01) provides accurate measurement performance and stable signal processing for large industrial machines, including steam turbines, gas turbines, compressors, generators, pumps, and other high-value rotating equipment.
The module uses a modular rack-mounted design, allowing convenient installation, replacement, and maintenance within a complete monitoring system. It can work together with sensors, cables, communication modules, relay modules, and other monitoring units to create a comprehensive machinery protection solution.
The product is especially suitable for industries where unexpected machinery failure can cause significant economic losses. By providing continuous monitoring data, it helps maintenance personnel detect early-stage mechanical problems and improve equipment availability.
2. Basic Product Information
| Parameter | Description |
|---|---|
| Model | 3500/40-01-00 (125680-01) |
| Product Type | Four-Channel Proximity Monitor Module |
| Brand | Bently Nevada |
| Product Series | 3500 Machinery Protection System Series |
| Module Function | Shaft displacement and proximity signal monitoring |
| Monitoring Method | Continuous online condition monitoring |
| Input Type | Eddy current proximity probe signal input |
| Number of Channels | 4 channels |
| Installation Type | Rack-mounted modular installation |
| Main Measurement | Shaft position, radial displacement, vibration-related parameters |
| Signal Processing | Digital signal processing |
| Application Field | Rotating machinery protection and condition monitoring |
| System Compatibility | 3500 monitoring rack system |
| Operating Mode | Continuous operation |
| Maintenance Method | Modular replacement design |
| Dimensions | Approximately 241 mm × 24.4 mm × 241 mm |
| Weight | Approx. 0.45 kg |
3. Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 3500/40-01-00 (125680-01) |
| Series | 3500 Machinery Protection System |
| Product Category | Proximity Monitoring Module |
| Channel Quantity | 4 independent monitoring channels |
| Sensor Compatibility | Eddy current proximity probes |
| Measurement Technology | Non-contact displacement measurement |
| Input Signal Type | Dynamic and static proximity signals |
| Monitoring Function | Shaft displacement, radial position monitoring |
| Accuracy | High precision industrial measurement capability |
| Signal Conditioning | Integrated signal processing |
| Alarm Function | Configurable alarm thresholds |
| Protection Function | Machinery protection monitoring |
| Diagnostic Capability | Module status and channel health monitoring |
| Communication | Compatible with 3500 system communication architecture |
| Installation Position | 3500 rack slot installation |
| Front Panel Display | LED status indicators |
| Power Supply | Supplied through monitoring rack |
| Operating Environment | Industrial machinery environment |
| Application Temperature | Industrial operating temperature range |
| Humidity Capability | Suitable for industrial humidity conditions |
| Shock Resistance | Designed for rotating machinery environments |
| Vibration Resistance | Suitable for continuous vibration monitoring |
| Replacement Method | Hot-swappable modular replacement |
| Dimensions | Approximately 241 mm × 24.4 mm × 241 mm |
| Weight | Approx. 0.45 kg |
4. Product Applications
4.1 Steam Turbine Monitoring
The 3500/40-01-00 (125680-01) is widely used for steam turbine protection and condition monitoring.
It monitors shaft movement, displacement changes, and mechanical behavior to identify possible issues such as rotor instability, bearing problems, misalignment, and abnormal operating conditions.
Continuous monitoring helps operators maintain turbine reliability and avoid unexpected shutdowns.
4.2 Gas Turbine Monitoring
Gas turbines operate under high-speed and high-load conditions. The module provides accurate shaft monitoring to help ensure stable operation.
It can detect mechanical changes caused by imbalance, excessive movement, or component wear, supporting preventive maintenance strategies.
4.3 Compressor Monitoring
Large compressors are critical assets in many industrial facilities. Mechanical failures can result in production interruptions and expensive repairs.
The module provides real-time monitoring of compressor shaft conditions and helps identify early warning signs before major failures occur.
4.4 Generator Monitoring
Power generation equipment requires highly reliable monitoring systems.
The module helps monitor generator shaft displacement and mechanical stability, supporting safe and efficient operation.
4.5 Pump and Motor Monitoring
Industrial pumps and motors often operate continuously for long periods.
The module can monitor abnormal shaft movement and provide valuable information for maintenance planning.
4.6 Industrial Machinery Protection
The product is suitable for various rotating equipment applications, including:
- Petrochemical machinery
- Power generation equipment
- Industrial compressors
- Large rotating machines
- Process industry equipment
- Energy sector machinery
5. Product Advantages
High Measurement Reliability
The module uses proven proximity monitoring technology to provide stable and accurate measurement results.
It can detect small changes in shaft position and mechanical movement, helping prevent serious equipment damage.
Continuous Online Monitoring
Unlike traditional inspection methods, this module operates continuously while equipment is running.
It provides real-time equipment condition information and supports predictive maintenance programs.
Strong Machinery Protection Capability
The product is designed for critical equipment applications where reliable protection is required.
It helps operators identify abnormal conditions and take corrective actions before equipment failure occurs.
Modular Structure Design
The rack-mounted modular design makes installation and maintenance easier.
Individual modules can be replaced without replacing the entire monitoring system.
Wide Industrial Application Range
The module can be used for different types of rotating equipment, including turbines, compressors, generators, and motors.
Improved Maintenance Efficiency
By providing continuous operating data, the module allows maintenance teams to move from reactive maintenance toward planned and predictive maintenance.
High System Compatibility
The module is designed to integrate with the 3500 monitoring platform, providing flexibility for different industrial monitoring requirements.
6. Brand Information
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Machinery protection and condition monitoring equipment |
| Main Technology Area | Vibration monitoring, displacement measurement, equipment protection |
| Main Application | Industrial rotating machinery monitoring |
| Typical Industries | Power generation, oil and gas, manufacturing, process industries |
7. Product Series Information
3500 Machinery Protection System Series
The 3500 Series is a modular machinery monitoring and protection platform designed for critical rotating equipment.
The system combines different monitoring modules to collect, process, and analyze equipment operating conditions.
The series supports applications requiring high reliability, accurate measurement, and continuous equipment protection.
Common modules within the series include:
| Module Type | Function |
|---|---|
| Proximity Monitoring Module | Measures shaft displacement and position |
| Vibration Monitoring Module | Measures machine vibration levels |
| Temperature Monitoring Module | Monitors bearing and equipment temperature |
| Relay Module | Provides alarm and shutdown output |
| Communication Module | Transfers monitoring data |
| Power Module | Provides system power supply |
8. Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Application | Dimensions | Weight |
|---|---|---|---|---|---|
| 3500/42M-01-00 | Proximity and Seismic Monitor | Four-channel monitoring, displacement and vibration measurement, proximity probe input | Turbine, compressor, generator monitoring | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/45-01-00 | Position Monitor Module | Multi-channel position monitoring, shaft axial position measurement | Turbine valve and position monitoring | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/50-01-00 | Tachometer Module | Speed measurement, overspeed monitoring, rotational signal processing | Turbine speed protection | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/25-01-01-00 | Keyphasor Module | Speed reference and phase measurement | Rotor speed and phase monitoring | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/53-01-00 | Electronic Overspeed Detection Module | High-speed overspeed protection monitoring | Steam turbine and gas turbine protection | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
9. Recommended Popular Models from the Same Brand
| Model | Product Type | Main Parameters | Application | Dimensions | Weight |
|---|---|---|---|---|---|
| 3500/15-01-00 | Power Supply Module | Rack power supply, redundant power capability | 3500 system power management | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/22M-01-01-00 | Transient Data Interface Module | High-speed data acquisition, event recording | Machinery fault analysis | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/32-01-00 | Relay Module | Four-channel relay output, configurable alarm logic | Shutdown and alarm control | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/60-01-00 | Temperature Monitor Module | Multi-channel temperature measurement | Bearing temperature monitoring | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
| 3500/92-01-01-00 | Communication Gateway Module | Data communication, system integration | Industrial monitoring networks | Approx. 241 × 24.4 × 241 mm | Approx. 0.45 kg |
10. Product Selection Summary
The Bently Nevada 3500/40-01-00 (125680-01) is a professional four-channel proximity monitoring module designed for critical rotating machinery applications.
It provides accurate shaft displacement measurement, continuous condition monitoring, and reliable machinery protection functions.
As an important component of the 3500 Machinery Protection System Series, it offers excellent compatibility, stable operation, modular maintenance capability, and strong industrial adaptability.
The module is suitable for applications where equipment reliability and operational safety are essential, including turbines, compressors, generators, and other large rotating machinery.
Through continuous monitoring and early fault detection, the product helps improve equipment availability, reduce maintenance costs, and increase overall operational efficiency.