Description
- Model: 3500/25 149369-01
- Brand: Bently Nevada (Baker Hughes)
- Series: 3500 High-Precision Machinery Protection System Series
- Core Function: Captures keyphasor signals for rotor dynamic analysis and protection
- Type: Dual-Channel Enhanced Keyphasor Module
- Key Specs: 2 independent input channels, wide frequency response, -24VDC operating voltage
- Supply Status: In stock
- Stock: Available
- Warranty: 1 year
- Ship From: China
Product System Overview
The Bently Nevada 3500/25 149369-01 is a high-performance half-height enhanced Keyphasor module developed by Baker Hughes, exclusively designed for the industry-leading 3500 machinery protection system. As a core synchronous signal acquisition component of the TSI turbine supervisory instrumentation system, it works in tandem with vibration, displacement and speed monitoring modules to build a complete API 670-compliant full-condition mechanical health monitoring solution. Different from conventional monitoring cards that focus on threshold judgment, this module specializes in high-fidelity key phase pulse signal collection, providing critical time reference data for rotor dynamic characteristic analysis. It features full compatibility with standard 3500 rack architecture, supporting stable data interaction with System 1 diagnostic software and mainstream DCS/SCADA industrial control platforms. Widely validated in global heavy industrial sites, it serves as a standard configuration for new system deployment, equipment upgrading and faulty keyphasor module replacement projects.

3500/25 149369-01
Core Product Functions
This professional dual-channel keyphasor module undertakes precision pulse signal acquisition, synchronous data calibration and rotor operating state analysis for industrial rotating machinery. It stably receives and processes pulse signals from on-site proximity probes and magnetic pickup sensors installed on rotating shafts, capturing accurate key phase position signals during shaft rotation. The module converts collected analog pulse signals into standardized digital keyphasor data, providing unified synchronous reference benchmarks for all vibration and displacement monitoring parameters of the 3500 system. It supports real-time tracking of shaft rotation phase changes, assisting the system in accurately identifying typical mechanical faults such as rotor unbalance, shaft misalignment and oil film instability that cannot be judged by single amplitude data. Additionally, it continuously records phase change trends and synchronous operation data, providing reliable core data support for equipment fault tracing and scientific predictive maintenance planning.
Product Features & Technical Advantages
The 3500/25 149369-01 keyphasor module boasts ultra-high signal fidelity, dual-channel redundant performance and excellent industrial environmental adaptability, meeting high-standard dynamic monitoring requirements for core rotating equipment. Equipped with two fully independent signal channels without cross-interference, it supports dual-channel signal backup acquisition, effectively avoiding monitoring failures caused by single-channel anomalies and improving overall system reliability. Adopting optimized high-sensitivity signal processing technology, it accurately captures weak on-site pulse signals with ultra-low signal drift and high repeatability. The built-in multi-stage filtering mechanism effectively eliminates electromagnetic clutter and mechanical vibration interference in harsh factory environments, ensuring distortion-free transmission of key phase data. It integrates intelligent self-diagnosis function to automatically detect sensor disconnection, signal faults and module abnormalities, eliminating monitoring blind spots. The standardized half-height rack-mounted plug-and-play design simplifies on-site installation and replacement, greatly reducing system debugging time and maintenance downtime.
Industrial Application Scenarios
This high-reliability enhanced keyphasor module is widely deployed in critical industrial scenarios requiring high-precision rotor dynamic analysis. It is mainly applied to thermal power plants, combined cycle power stations, petrochemical refining bases, oil and gas compression stations and large metallurgical enterprises. It provides indispensable phase reference monitoring and data calibration services for high-value core equipment such as steam turbines, gas turbines and centrifugal compressors. As a key diagnostic unit of the 3500 TSI system, it makes up for the limitations of traditional threshold-based monitoring, supports in-depth mechanical fault analysis and equipment performance evaluation, and effectively guarantees long-term safe, stable and efficient operation of industrial core production equipment.
