135145-01 BENTLY NEVADA I/O (Input/Output) Module

Description

135145-01 BENTLY NEVADA I/O (Input/Output) Module

Product Dimensions：

Product Description

The Bently Nevada 135145-01 is a specialized component within the Bently Nevada 3500 Machinery Protection System. It is an I/O (Input/Output) Module with External Terminations for the 3500/45 Position Monitor.

This module acts as the physical interface between the machine’s position sensors and the 3500/45 monitor. Its design with external terminations is a key feature, as it allows all the field wiring to be connected to a separate terminal block. This makes maintenance and troubleshooting much easier, as the I/O module can be replaced without disconnecting or re-wiring the sensors.

Technical Parameters

• Part Number: 135145-01
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Product Type: Position I/O Module with External Terminations
• System Compatibility: Bently Nevada 3500/45 Position Monitor
• Input Types: Accepts signals from a variety of position transducers, including:
  • Proximity Sensors (Proximitors)
  • Rotary Position Transducers (RPTs)
  • DC Linear Variable Differential Transformers (DC LVDTs)
• Terminations: External screw-type terminals on a separate terminal block, which facilitates easy wiring and maintenance.
• Data Processing: The module conditions the raw input signal from the sensors before sending it to the 3500/45 monitor for analysis and alarm generation.
• Physical: The module is designed to be installed in the rear of a Bently Nevada 3500 rack, connecting to the main 3500/45 monitor module in the front of the rack.

Key Advantages

• Hot-Swappable Maintenance: The external termination design allows for the module to be “hot-swapped”—it can be removed and replaced without disturbing the sensor wiring or shutting down the entire rack (assuming a redundant system is in place). This saves significant time and effort during maintenance.
• High Versatility: It’s compatible with several types of position sensors, giving users flexibility when designing a monitoring system for different machines.
• Reliable and Accurate Data: As a core part of the Bently Nevada 3500 system, it is engineered to provide precise and reliable position data, which is essential for protecting critical machinery.
• Simplified Wiring: The external terminal blocks make for a cleaner and more organized wiring solution, reducing the chance of human error and simplifying troubleshooting.

Important Notes

• System Specific: The 135145-01 is not a standalone product; it must be used with the Bently Nevada 3500/45 Position Monitor.
• Configuration: The module’s operation is configured through the 3500 Rack Configuration Software, not via physical switches on the module itself.
• Obsolete Status: Like many 3500 series components, this module may be considered a legacy part. While it’s still widely used, newer systems from Bently Nevada may be recommended for new installations.

Product Applications

The 135145-01 module is used in conjunction with the 3500/45 monitor to protect and monitor critical rotating machinery in a variety of industries. Key applications include:

• Turbines and Compressors: Monitoring the axial position (thrust) of shafts to detect excessive movement that could lead to catastrophic failure.
• Generators and Motors: Tracking differential expansion between the rotor and the casing to prevent rubbing and damage due to thermal changes.
• Valve Monitoring: Measuring valve position to ensure proper operation and control in process applications.
• Reciprocating Machinery: Monitoring case expansion on large compressors and engines to ensure structural integrity during operation.

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