Bently Nevada 3500/25M 126648-01 Keyphasor I/O Module (External Terminations)

Product Introduction

The Bently Nevada 3500/25M 126648-01 Keyphasor I/O Module (External Terminations) is a high-performance signal processing module specifically designed to work within the 3500 Machinery Protection System. It is primarily responsible for conditioning and processing Keyphasor signals from machinery shafts, enabling precise phase reference measurements. The module converts raw sensor input into a clean, accurate digital signal that is used for vibration analysis, phase tracking, speed measurement, and rotor position diagnostics.

This module is optimized for external termination configurations, allowing convenient connection of Keyphasor probes through terminal blocks or junction boxes. By providing reliable and accurate signal conditioning, it plays a critical role in turbine, compressor, and motor monitoring applications, especially in high-speed rotating machinery. Its robust design ensures long-term stability even in demanding industrial environments such as oil & gas, petrochemical, and power generation plants.

Product Specifications

Applications

The 3500/25M 126648-01 Keyphasor I/O Module is widely applied in machinery protection and condition monitoring systems. Its primary uses include:

• Rotating Equipment Phase Reference – Provides a precise reference signal for vibration analysis and balancing.

• Turbomachinery Monitoring – Ideal for steam turbines, gas turbines, and compressors.

• Speed Measurement – Accurately calculates RPM in high-speed rotating shafts.

• Shaft Position Tracking – Essential for detecting shaft runout, misalignment, and eccentricity.

• Machinery Balancing – Facilitates field balancing procedures by providing a stable phase reference.

• Condition Monitoring Systems – Works in conjunction with other 3500 modules for predictive maintenance.

Advantages

The Bently Nevada 3500/25M 126648-01 offers several operational and technical benefits:

• High Signal Integrity – Delivers precise, noise-free phase reference signals even in high-electromagnetic interference environments.

• Flexible Termination Options – Supports external terminations for easy integration with different plant wiring configurations.

• Dual-Channel Capability – Allows redundancy or dual-probe measurements for enhanced reliability.

• Seamless 3500 Rack Integration – Fully compatible with other Bently Nevada monitoring modules.

• Industrial Ruggedness – Designed for long-term performance in harsh industrial settings.

• Diagnostic Capabilities – Provides signal health and status monitoring to ensure accurate readings.

• Reduced Downtime – Supports proactive maintenance and early fault detection.

FAQ

1. What is the main function of the 3500/25M Keyphasor I/O Module?
   It processes Keyphasor probe signals to produce a clean digital pulse for phase, speed, and position reference.

2. Can this module handle multiple Keyphasor probe types?
   Yes, it is compatible with magnetic, optical, and proximity probes.

3. How many channels does the module support?
   It supports both single-channel and dual-channel configurations.

4. Does the module require separate power supply wiring?
   No, it draws its power directly from the 3500 rack backplane.

5. What type of output signal does it generate?
   It outputs a TTL-compatible pulse train.

6. Is this module hot-swappable within the 3500 rack?
   Yes, it can be replaced without shutting down the entire rack system.

7. Does it have built-in signal diagnostics?
   Yes, it continuously monitors signal quality and status.

8. Can it be used in hazardous area installations?
   Yes, certain versions are certified for ATEX, CSA, and IECEx hazardous zones.

9. What is the typical signal processing latency?
   The processing delay is negligible, ensuring real-time phase reference output.

10. Is it backward compatible with older 3500 systems?
    Yes, it is fully compatible with existing 3500 monitoring racks.

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FAQ

1. What is the main function of the 3500/25M Keyphasor I/O Module?
   It processes Keyphasor probe signals to produce a clean digital pulse for phase, speed, and position reference.

2. Can this module handle multiple Keyphasor probe types?
   Yes, it is compatible with magnetic, optical, and proximity probes.

3. How many channels does the module support?
   It supports both single-channel and dual-channel configurations.

4. Does the module require separate power supply wiring?
   No, it draws its power directly from the 3500 rack backplane.

5. What type of output signal does it generate?
   It outputs a TTL-compatible pulse train.

6. Is this module hot-swappable within the 3500 rack?
   Yes, it can be replaced without shutting down the entire rack system.

7. Does it have built-in signal diagnostics?
   Yes, it continuously monitors signal quality and status.

8. Can it be used in hazardous area installations?
   Yes, certain versions are certified for ATEX, CSA, and IECEx hazardous zones.

9. What is the typical signal processing latency?
   The processing delay is negligible, ensuring real-time phase reference output.

10. Is it backward compatible with older 3500 systems?
    Yes, it is fully compatible with existing 3500 monitoring racks.

Recommended Related Models (Same Series or Related)

Popular Models from the Same Brand

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