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The Bently Nevada 3500/25 (128726-01) Keyphasor External Termination Module is an external termination module designed for the Bently Nevada 3500 machinery protection system.
It provides a dedicated interface for Keyphasor (phase reference) signal wiring, allowing field devices such as proximity probes to be securely connected to the 3500 system. This module ensures organized wiring, stable connections, and reliable signal transmission in industrial environments.
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 3500/25 |
| Part Number | 128726-01 |
| Product Type | Keyphasor External Termination Module |
| Function | External signal termination for Keyphasor inputs |
| Dimensions | 241.3 × 24.4 × 103.1 mm |
| Weight | 0.46 kg |
| Installation | Rack-mounted (used with 3500 modules) |
| Application | Phase signal connection and termination |
| Environment | Industrial-grade |
| Compatibility | Bently Nevada 3500 system |
The Bently Nevada 3500/25 (128726-01) Keyphasor External Termination Module acts as a passive connection and termination interface.
Receives Keyphasor signals from field sensors (e.g., proximity probes)
Provides secure terminal points for signal wiring
Ensures proper signal termination and connection to internal modules
Routes signals to the corresponding I/O or processing modules
External termination of phase (Keyphasor) signals
Organized and secure field wiring
Signal integrity support through proper termination
Easy integration with 3500 rack modules
This module plays a key role by:
Providing a central termination point for Keyphasor signals
Simplifying wiring and installation
Enhancing system maintainability
Supporting stable and reliable signal transmission
It is essential in systems requiring clean wiring architecture and dependable connections.
The Bently Nevada 3500/25 (128726-01) Keyphasor External Termination Module is widely used in:
Turbine monitoring systems
Compressor and pump monitoring
Power generation plants
Oil and gas processing facilities
Petrochemical industries
Industrial rotating machinery systems
It is especially suitable for phase reference signal wiring in harsh environments.
For proper operation:
Installed as part of a Bently Nevada 3500 rack system
Connected to Keyphasor I/O or processing modules
Used as a wiring interface for field sensors
Installed according to manufacturer guidelines
Correct installation ensures reliable signal termination and system stability.
This module works with:
Bently Nevada Keyphasor modules
Proximity probes and phase sensors
Rack Interface Modules (RIM)
Vibration monitoring modules
Signal conditioning modules
Together, they support a complete machinery monitoring architecture.
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 128726-01 | External Termination Module | Signal termination | Standard wiring |
| 128718-01 | External Terminal Module | Wiring interface | Flexible connections |
| 126648-01 | Keyphasor I/O Module | Signal processing | Standard monitoring |
| 126648-02 | Isolated I/O Module | Electrical isolation | High-noise environments |
Provides reliable signal termination
Simplifies external wiring connections
Enhances system organization
Supports stable Keyphasor signal transmission
Easy integration with 3500 systems
Industrial-grade durability
What is the main function of this module?
It provides external termination for Keyphasor signals in the 3500 system.
Does it process signals?
No, it is a passive termination module used for connection and wiring.
Where is it used?
In 3500 rack systems for connecting phase reference signals from field devices.
The Bently Nevada 3500/25 (128726-01) Keyphasor External Termination Module is a vital interface component for phase signal wiring and termination.
It provides:
Stable and secure signal connections
Organized field wiring
Reliable Keyphasor signal routing
Seamless integration with 3500 systems
For engineers and system integrators, this module is an essential component for building reliable, well-structured machinery monitoring systems.