Bently Nevada 3500/25 128718-01 Key Phase External Terminal Module

Product Overview

The Bently Nevada 3500/25 128718-01 Keyphasor® External Terminal Module (ETM) is an essential component من the 3500 Machinery Protection System, providing reliable, precise shaft rotational speed and phase reference signals. These signals are critical for performing vibration phase analysis, synchronous machine startup and shutdown diagnostics, and rotor position monitoring.

The 3500/25 Keyphasor® Module converts proximity probe signals from rotating shafts into accurate Keyphasor® pulses, which the system uses for speed measurement, phase referencing, and advanced vibration diagnostics. The 128718-01 ETM version is designed for external terminal connections, simplifying wiring and improving accessibility during installation or maintenance.

The module supports configurations for one or two independent Keyphasor® channels, making it suitable for single-shaft or dual-shaft machinery applications.

Key Features

• Keyphasor® Signal Generation: Converts proximity probe signals to precise pulse outputs for speed and phase reference

• Two Independent Channels: الدعمs dual Keyphasor® inputs for redundant or multi-shaft applications

• External Terminal Module (ETM): Provides convenient external wiring terminals for easier installation and service

• Critical for Vibration Analysis: Enables phase-triggered measurements and synchronous vibration diagnostics

• System Integration: Seamlessly integrates with the Bently Nevada 3500 Machinery Protection System

• Robust Industrial Design: Built for operation in harsh environments, ensuring reliable long-term performance

• LED Indicators: Provides visual status feedback for channel health and system functionality

• Redundant Channel Capability: Enhances reliability by supporting independent redundant Keyphasor® signals

• Hot-Swappable Module: Allows module replacement without disrupting overall system operation

Technical Specifications

Product Advantages

• Precise Shaft Speed and Phase Reference: Delivers accurate Keyphasor® pulses essential for machine diagnostics

• الدعمs Redundant Configurations: Dual channels allow for backup signals or monitoring من dual-rotor machinery

• Simplified Wiring with ETM: External terminal connections reduce installation time and improve accessibility

• Enhances Vibration Analysis: Enables phase-referenced data for advanced machinery condition monitoring

• Reliability in Harsh الحالةs: Built to withstand industrial environments including oil & gas, power generation, and refining

• System Uptime Assurance: Hot-swappable design avoids downtime during module maintenance or replacement

• Full 3500 System Integration: Works seamlessly with Bently Nevada’s industry-standard protection and monitoring solutions

• Real-Time System Feedback: LED indicators provide immediate operational status for quick troubleshooting

• Proven Global Performance: Used worldwide in critical rotating machinery protection applications

Industry Applications

The Bently Nevada 3500/25 128718-01 Keyphasor® ETM is essential in industries where rotating equipment monitoring and protection are critical:

• Oil & Gas: Turbines, compressors, and pumps in upstream and downstream operations

• Power Generation: Gas turbines, steam turbines, and generator condition monitoring

• Petrochemical and Refining: Continuous monitoring من process-critical rotating assets

• Metals & Mining: Crushers, mills, and other heavy machinery requiring phase-based diagnostics

• Marine and Offshore: Shaft monitoring for propulsion and auxiliary machinery

• Pulp and Paper: Speed and phase reference for rollers, drives, and high-speed equipment

• Water and Wastewater: Monitoring من pumps, blowers, and other rotating infrastructure

الأسئلة الشائعة (FAQ)

Q1: What is the function من the 3500/25 Keyphasor® Module?
It generates accurate shaft speed and phase reference signals based on proximity probe inputs, critical for vibration and machine protection diagnostics.

Q2: What makes the 128718-01 version unique?
It includes an External Terminal Module (ETM) that simplifies field wiring and provides easy access for maintenance.

Q3: Can the module support two separate Keyphasor® signals?
Yes, it has two independent channels for redundant or multi-shaft applications.

Q4: How is the module powered?
Power is supplied directly through the backplane من the 3500 rack, requiring no external power source.

Q5: Is the module hot-swappable?
Yes, it can be replaced without shutting down the entire system, minimizing downtime.

Q6: Does it integrate with System 1® sمنtware?
Yes, Keyphasor® signals are used by System 1® for advanced diagnostics and condition monitoring.

Q7: What kind من sensors does it accept?
It accepts inputs from proximity probes mounted to detect shaft rotation or keyway targets.

Q8: Is the module suitable for hazardous areas?
Yes, with proper system configuration, it complies with ATEX, IECEx, and other hazardous area certifications.

Q9: What is the typical application for the two-channel version?
It is ideal for redundant protection or monitoring equipment with dual rotors or shafts.

Q10: Can I monitor slow-speed machines with this module?
Yes, it supports a wide speed range, including low-speed applications, depending on sensor configuration.

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