Bently Nevada 3500/25 149369-01 Enhanced Keyphasor Module Dual Independent Channels

Bently Nevada 3500/25 149369-01 Enhanced Keyphasor Module without I/O module

Product Overview
The Bently Nevada 3500/25 149369-01 is a factory-built Enhanced Keyphasor Module that supplies precise once-per-turn timing signals to the 3500 machinery protection system. Accepting inputs from eddy-current proximity probes or magnetic pickups, it generates ultra-stable TTL keyphasor pulses for phase, speed, and vector data used in advanced vibration diagnostics. Whether you are retrofitting a legacy 3500 frame or expanding a new steam-turbine train, the 149369-01 ensures OEM-grade accuracy and long-term reliability.

Key Features & Benefits
• Dual independent channels – supports redundant sensors for maximum uptime
• Configurable trigger level, hysteresis, and edge for each channel
• TTL/CMOS-compatible keyphasor output directly to 3500 rack backplane
• Auto-threshold or manual threshold adjustment via System 1 or Rack Configuration Software
• Hot-swappable without rack shutdown – reduces maintenance downtime
• CE, ATEX Zone 2 / IECEx certified for hazardous-area installations
• Backward-compatible with all 3500/05 racks (R6.0 firmware or later)

Typical Applications
• Steam, gas, and hydro turbine speed & phase reference
• Centrifugal and reciprocating compressor keyphasor timing
• Motor-driven pump train diagnostics and balancing
• API 670-compliant machinery protection systems

Technical Specifications
Channels: 2 fully isolated
Input Types: Eddy-current proximity probe or magnetic pickup
Input Impedance: 10 kΩ (proximity) / 50 kΩ (magnetic)
Frequency Range: 0.1 Hz to 20 kHz
Output: TTL/CMOS, 5 Vpp into 50 Ω
Front LEDs: Power, OK, Channel A/B Active
Power Consumption: 6 W max @ 24 V DC
Operating Temperature: –30 °C to +65 °C (–22 °F to +149 °F)
Dimensions: 241 mm × 24.4 mm × 241 mm (H × W × D, rack depth)
Weight: 0.7 kg (1.5 lb)

Product Images

Related Products

We are a global trading company specializing in PLC automation and industrial controls.

Xiamen Changxuyuan Trading Co., Ltd. is a leading global online wholesale supplier, offering a wide selection of new and discontinued products. We are committed to providing a wide range of high-quality products to our global customers at highly competitive factory direct prices, fast delivery times, and first-class customer service.

Our goal is to provide high-quality products to our global customers at highly competitive factory direct prices.

The more you buy, the more you save! Our website is available in multiple major languages ​​to meet the needs of our growing international customer base. Looking for low-priced, high-quality products? Xiamen Changxuyuan Trading Co., Ltd. is your ideal choice, offering high-quality products, low prices, fast delivery, and professional service—all backed by our strong global presence.

Four Reasons to Choose Us
1. We have the world's largest selection of industrial spare parts, including a wide variety of new and discontinued products.
2. We update our product information daily.
3. We have a diverse buyer base from around the world, constantly searching for high-quality, low-priced products to meet the diverse needs of our large global customer base.

4. We offer a wide variety of styles at the lowest online prices.

Factory Prices
Leveraging our extensive and strong partnerships with domestic and international manufacturers, we are able to offer high-quality products at exceptionally low factory prices. We are committed to working with global wholesalers to secure the best prices. If you are interested in our products, please feel free to contact us. We are confident that you will enjoy all of our exquisite products at wholesale prices.

Fast Shipping/Professional Packaging
We have established long-term partnerships with UPS, FedEx, DHL, and other leading global carriers, enabling us to offer world-class shipping options. Our dedicated warehouse staff will meticulously process your order, ensuring packaging according to our strict and rigorous standards. Your product will be carefully inspected and securely packaged before shipment. We ship to thousands of customers in dozens of countries around the world every day, demonstrating our commitment as a leading global industrial spare parts company, ensuring the highest level of responsiveness at all times.

Best Customer Service
We value our relationships with every customer, and our dedicated customer service team is always here to assist you. Due to the vast product offering, all staff members are fully trained and familiar with the latest trends and products. We also offer a dedicated online chat service to answer all your questions and respond immediately. Your satisfaction is always our top priority.

Brands