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- Bently Nevada
- 3500/25 126648-01
- Enhanced Keyphasor Module I/O 3500-25
- USA
- 112 mm × 25 mm × 242 mm
- 0.42kg
- Xiamen, China
- New & In Stock
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Product Overview: Bently Nevada 3500/25 126648‑01 Keyphasor I/O Module (External Terminations)
The 3500/25 126648‑01 is a Keyphasor I/O module engineered to deliver precise signal isolation in rotating machinery monitoring systems. It allows multiple systems to share Keyphasor signals—typically used for phase referencing—while maintaining electrical separation. Commonly deployed with proximity-probe-based systems, this module ensures the integrity of Keyphasor outputs when distributed across different control or diagnostic systems.
Brand and Series
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Brand: Bently Nevada
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Series: 3500 Machinery Protection System – Keyphasor I/O Modules
Applications
This module is used in scenarios including:
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Distributing phase-reference Keyphasor signals to multiple monitoring systems without interference
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Integrating Keyphasor outputs into separate diagnostic or control systems
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Shielding sensitive systems from control-induced electrical noise
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Supporting machinery protection in turbines, compressors, pumps, and generators
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Enhancing signal integrity in complex industrial control environments
Key Features and Advantages
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Signal Isolation: Provides electrical separation between systems sharing the Keyphasor output, preserving signal quality.
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External Termination: Designed for installations where internal feedthrough connections are not optimal or possible.
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Compact Design: Slim form factor enables easy rack or panel mounting in tight spaces.
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Proximitor-Compatible: Tailored for use in systems that require proximity sensor-based signal conditioning.
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Lightweight: Minimal mass minimizes structural load and simplifies handling.
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Straightforward Integration: Clear, functional design makes it easy to insert into existing machinery protection systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/25 126648‑01 |
| Function | External Keyphasor I/O module (signal isolation) |
| Designed For | Use with Proximitor/Keyphasor systems |
| Mounting | Rack-mounted or panel-mounted external terminations |
| Dimensions (H×W×D) | 112 mm × 25 mm × 242 mm |
| Weight | 0.42 kg |
Related Models in the Same Series
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/25 126648‑01 | Keyphasor I/O Module (this module) | 112 × 25 × 242 | 0.42 |
| 3500/25 125792‑01 | Enhanced Keyphasor Module | ~206 × 32 × 190 | ~0.34 |
| 3500/25 125800‑01 | Vibration Transmitter Module | ~206 × 32 × 190 | ~0.34 |
| 3500/25 149369‑01 | Alternate Keyphasor Variant | ~206 × 32 × 190 | ~0.34 |
| 3500/26 125793‑01 | Vibration Monitor Module | ~206 × 32 × 190 | ~0.34 |
Popular Models from the Same Brand
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/42M | Proximitor/Seismic Monitor | ~483 × 178 × 89 | ~7.7 |
| 3500/44M | Aeroderivative Gas Turbine Monitor | ~483 × 178 × 89 | ~7.7 |
| 3500/46M | Hydro Turbine Vibration Monitor | ~483 × 178 × 89 | ~7.7 |
| 3500/32M | 4‑Channel Relay Module | ~206 × 32 × 190 | ~0.35 |
| 3500/65 | 16‑Channel Temperature Monitor | ~483 × 178 × 89 | ~7.7 |
FAQ – Frequently Asked Questions
Q1: What is the primary function of this module?
A1: It isolates the Keyphasor phase‑reference signal when sharing it among multiple systems, preserving signal integrity.
Q2: Is this module designed for internal rack integration?
A2: No, it is specifically built for external termination scenarios, where internal connections are unsuitable.
Q3: What standards is the module compatible with?
A3: It is compatible with systems using proximity-based Keyphasor sensors and machinery protection protocols.
Q4: Does it offer any signal enhancement?
A4: No, its main purpose is isolation; signal conditioning is handled elsewhere.
Q5: What are its physical dimensions?
A5: It measures 112 mm (H) × 25 mm (W) × 242 mm (D).
Q6: How much does it weigh?
A6: The module weighs approximately 0.42 kg.
Q7: How does it improve system reliability?
A7: By isolating signals, it prevents electrical interference and system cross-talk, improving diagnostic accuracy.
Q8: Is it suitable for high‑vibration settings?
A8: Yes, its external design and sturdy build support reliable operation in industrial environments.
Q9: What sensor type is it designed for?
A9: It’s optimized for use with proximity‑probe based Keyphasor systems.
Q10: Where is this module mounted?
A10: It is typically mounted externally—either on a rack face or inside a control panel—with proper terminations.
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