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The Bently Nevada 3500/50-04-00 136703-01 is a high-performance Tachometer Module designed for the 3500 Machinery Protection System. It is a dedicated monitoring module used for accurate rotational speed measurement, overspeed detection, and speed-related protection functions for critical rotating machinery.
The primary purpose of the 3500/50-04-00 136703-01 is to continuously monitor machine speed and provide reliable speed information for operational monitoring, alarm functions, and protection systems.
Rotating equipment such as turbines, compressors, generators, and high-speed mechanical systems require precise speed control to maintain safe operation. Abnormal speed conditions, especially overspeed events, may cause severe mechanical stress, rotor damage, or catastrophic equipment failure.
This tachometer module receives input signals from compatible speed sensors and processes these signals to calculate accurate rotational speed values. The processed speed information can then be used by the protection system to evaluate machine operating conditions and initiate appropriate alarms or protective actions.
The 3500/50-04-00 136703-01 is designed for applications where fast response, reliable speed measurement, and continuous online monitoring are required.
The module operates as part of a modular rack-based machinery protection platform. It communicates with other modules through the internal rack backplane, allowing integration with vibration monitoring modules, position monitoring modules, relay modules, and communication interfaces.
The module supports real-time monitoring during different machine operating stages, including startup acceleration, normal running, load variation, and shutdown deceleration.
The plug-in modular construction allows easy installation, replacement, and maintenance. Engineers can replace the module without major modifications to the existing protection cabinet.
The 3500/50-04-00 136703-01 provides stable speed monitoring performance, reliable protection capability, flexible configuration, and long-term industrial durability, making it suitable for demanding rotating equipment applications.
| Parameter | Specification |
|---|---|
| Model | 3500/50-04-00 136703-01 |
| Product Type | Tachometer Module |
| Brand | Bently Nevada |
| Series | 3500 Machinery Protection System |
| Main Function | Rotational Speed Monitoring |
| Monitoring Type | Speed Measurement and Overspeed Protection |
| Input Signal Type | Speed Sensor Input Signals |
| Measurement Function | Rotational Speed, Overspeed Detection, Speed Monitoring |
| Channel Type | Multi-Channel Speed Monitoring |
| Signal Processing | Digital Signal Processing |
| Monitoring Mode | Continuous Online Monitoring |
| Alarm Function | Configurable Speed Alarm Settings |
| Protection Function | Overspeed Detection and Machine Protection |
| Output Function | Speed Data and Protection Signals |
| Communication Method | Internal Rack Backplane |
| Installation Method | Rack Mounted Plug-In Module |
| Configuration Method | Software Configuration |
| Status Indicators | Front Panel LED Indicators |
| Power Supply | Supplied Through Rack Power Module |
| Operating Mode | Continuous Industrial Operation |
| Application Purpose | Rotating Machinery Speed Protection |
| Sensor Compatibility | Magnetic Pickup and Speed Sensors |
| Measurement Capability | High Accuracy Speed Measurement |
| Response Capability | Fast Detection of Speed Variations |
| Environmental Capability | Industrial Operating Environment |
| Cooling Method | Natural Air Cooling |
| Housing Material | Industrial Metal Enclosure |
| Maintenance Method | Modular Replacement |
| Mounting Position | 3500 System Rack Slot |
| System Compatibility | 3500 Machinery Protection Platform |
| Operating Principle | Frequency Input Signal Processing |
| Monitoring Capability | Real-Time Machine Speed Monitoring |
| Dimensions | Approximately 241 × 24 × 250 mm |
| Weight (kg) | Approximately 0.85 kg |
The 3500/50-04-00 136703-01 provides specialized speed monitoring functions for critical rotating equipment.
The module is designed to accurately measure machine rotational speed and provide reliable protection information for high-speed machinery.
Main features include:
The module processes signals from speed sensors and converts them into stable speed measurement data.
It can identify abnormal speed conditions and provide warning information before equipment damage occurs.
The module supports adjustable monitoring parameters, allowing engineers to configure protection limits according to different machine operating requirements.
The front-panel LED indicators provide quick visual confirmation of module operating status.
The rack-mounted structure enables integration with other monitoring and protection modules.
The compact plug-in design reduces installation time and simplifies maintenance procedures.
The module is designed for continuous operation in industrial environments where reliability and availability are important.
The major advantage of the 3500/50-04-00 136703-01 is its ability to provide dependable speed monitoring and fast response protection for rotating machinery.
Rotational speed is a critical parameter in turbine and compressor systems. Unexpected speed increases or unstable speed conditions can create dangerous operating situations.
Main advantages include:
The module helps protect equipment against:
The module improves operational safety by providing accurate speed information to the machinery protection system.
Its integration with the 3500 platform allows operators to combine speed monitoring with vibration, position, and other machine condition parameters.
The modular design reduces downtime during maintenance and improves overall system availability.
The industrial-grade construction ensures stable operation in harsh environments.
The 3500/50-04-00 136703-01 is widely used in industries where accurate rotational speed monitoring is required.
Typical applications include:
The module is especially suitable for equipment where overspeed protection and accurate speed measurement are essential for safe operation.
Bently Nevada is an industrial technology brand focused on machinery protection, vibration monitoring, and equipment condition monitoring solutions.
The technology is designed to improve rotating equipment reliability, reduce unexpected failures, and support predictive maintenance strategies.
The product range includes machinery protection systems, tachometer modules, vibration monitoring modules, relay modules, communication modules, proximity measurement products, position monitoring devices, and diagnostic equipment.
These products are commonly applied in industries where equipment safety, reliability, and continuous operation are critical.
The 3500 Machinery Protection System is a modular online monitoring and protection platform designed for critical rotating equipment.
The system uses a rack-based structure where different modules perform dedicated monitoring and protection functions.
Main module categories include:
The modular architecture allows users to build protection systems according to different machine requirements.
Main system advantages include:
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 3500/50-01-00 | Tachometer Module | Rotational speed measurement and overspeed protection | Approximately 241 × 24 × 250 mm | Approximately 0.85 |
| 3500/50-01-00-01 | Tachometer Module | Speed monitoring with enhanced configuration options | Approximately 241 × 24 × 250 mm | Approximately 0.85 |
| 3500/50M-01-00 | Tachometer Module | Advanced speed monitoring and protection | Approximately 241 × 24 × 250 mm | Approximately 0.85 |
| 3500/40M-01-00 | Proximitor Monitor Module | Shaft vibration and displacement monitoring | Approximately 241 × 24 × 250 mm | Approximately 0.90 |
| 3500/42M-04-00 | Proximitor/Seismic Monitor | Vibration and position monitoring | Approximately 241 × 24 × 250 mm | Approximately 0.90 |
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 3500/42M-04-00 | Proximitor/Seismic Monitor | Shaft vibration and seismic vibration monitoring | Approximately 241 × 24 × 250 mm | Approximately 0.90 |
| 3500/40M-01-00 | Proximitor Monitor | Shaft vibration and displacement measurement | Approximately 241 × 24 × 250 mm | Approximately 0.90 |
| 3500/50-04-00 136703-01 | Tachometer Module | Speed measurement and overspeed protection | Approximately 241 × 24 × 250 mm | Approximately 0.85 |
| 3500/33-01-00 | Relay Module | Programmable relay output monitoring | Approximately 241 × 24 × 250 mm | Approximately 0.95 |
| 3500/22M-01-01-00 | Transient Data Interface Module | Data acquisition and communication functions | Approximately 241 × 24 × 250 mm | Approximately 0.90 |
The 3500/50-04-00 136703-01 is a specialized Tachometer Module designed for the 3500 Machinery Protection System. It provides accurate rotational speed measurement, overspeed monitoring, and reliable protection functions for critical rotating machinery.
With accurate signal processing, fast response capability, continuous online monitoring, and modular installation, the module provides an effective solution for protecting high-speed industrial equipment.
The module is widely used in power generation, oil and gas, petrochemical, marine, and heavy industrial applications where reliable speed monitoring is essential.
Its accurate measurement capability, stable operation, flexible configuration, and convenient maintenance make the 3500/50-04-00 136703-01 an important component in modern rotating machinery protection systems.