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- Overview
- Quick Detail
- Description
- Applications
- Specifications
- Competitive Advantage
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
Bently Nevada |
Model Number: |
3500/25 149369-01 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Quick Detail
|
Power Consumption |
3.2 Watts typical |
|
Signal |
Input: Up to two transducer signals from proximity probes or magnetic pickups; Input range: +0.8 V to -21.0 V (Non-Isolated I/O modules) or +5 V to -11 V (Isolated I/O modules) |
|
Input Impedance |
21.8 kΩ minimum |
|
Buffered Keyphasor Signals |
Two buffered Keyphasor outputs at front via coaxial connectors; Two buffered outputs at rear via Euro Style connectors |
|
Output Impedance |
504 Ω maximum buffered |
|
Keyphasor Transducer Power Supply |
-24 Vdc, 40 mA maximum per channel |
|
Operating Temperature |
-30°C to +65°C (-22°F to +150°F) with standard Keyphasor I/O; 0°C to +65°C (32°F to +150°F) with Internal Barrier I/O |
|
Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
|
Humidity |
95%, non-condensing |
|
Dimension: |
2.5x25.5x12cm |
|
Weight: |
0.32kg |
Description
The 3500/25 149369-01 Enhanced Keyphasor Module is a half-height, two-channel module designed for Bently Nevada™ 3500 machinery protection racks. The 3500/25 149369-01 Enhanced Keyphasor Module receives signals from proximity probes or magnetic pickups, converting inputs (+0.8 V to -21 V or +5 V to -11 V) into buffered digital Keyphasor signals. Each module provides two front coaxial and two rear Euro-style outputs with maximum 504 Ω impedance, supplying -24 VDC at 40 mA per channel. The 3500/25 149369-01 Enhanced Keyphasor Module supports shaft speed inputs from 1 to 1,200,000 cpm (0.017 to 20 kHz) and outputs 1 to 99,999 cpm (0.017 to 1,667 Hz), with processed accuracy ±1 cpm below 60 Hz and ±1% above 151 Hz. Operating -30°C to +65°C and storing -40°C to +85°C, the 3500/25 149369-01 Enhanced Keyphasor Module withstands 95% non-condensing humidity. Front LEDs provide OK and TX/RX indicators, while the module fits one half-height front slot and one full-height rear slot. Field-upgradeable firmware and multi-event-per-turn signal generation enable integration with automated monitoring, phase measurements, and asset management reporting in industrial turbine and compressor systems.
Applications
Convert Proximity or Magnetic Pickup Signals to Digital Keyphasor
The 3500/25 149369-01 Enhanced Keyphasor Module accepts two transducer inputs and outputs buffered Keyphasor signals, enabling automated shaft speed and phase detection.
Provide Multi-Channel Speed Monitoring
With input range 1–1,200,000 cpm and outputs 1–99,999 cpm, the 3500/25 149369-01 Enhanced Keyphasor Module supports paired configurations for up to eight Keyphasor signals in TMR or multi-machine setups.
Integrate with Automated Asset Management Systems
MODBUS-compatible output and buffered coaxial/Euro-style connectors on the 3500/25 149369-01 Enhanced Keyphasor Module allow real-time connection to PLCs, SCADA, or System 1 software for automated turbine or compressor monitoring.
Specifications
|
Front Panel LEDs |
OK LED indicates fault; TX/RX LED indicates communication with RIM |
|
Rack Space Requirement |
Main Module: 1 half-height front slot; I/O Modules: 1 full-height rear slot |
|
Speed/Frequency Signal Range |
Input: 1 to 1,200,000 cpm (0.017 to 20 kHz); Output: 1 to 99,999 cpm (0.017 to 1667 Hz) |
|
Speed/Frequency Signal Accuracy |
Nonprocessed: 0.017–100 Hz ±1 cpm, 101–500 Hz ±8 cpm, 501–20 kHz ±1% of cpm; Processed: 0.017–60 Hz ±1 cpm, 61–150 Hz ±8 cpm, 151–20 kHz ±1% of cpm |
Competitive Advantage
High-Speed Signal Accuracy
The 3500/25 149369-01 Enhanced Keyphasor Module delivers processed speed accuracy ±1 cpm below 60 Hz and ±1% above 151 Hz, supporting precise automated speed analysis.
Dual Output for Parallel Systems
Front and rear buffered outputs allow the 3500/25 149369-01 Enhanced Keyphasor Module to feed multiple monitoring devices simultaneously, supporting redundancy and automated control loops.
Wide Operating and Storage Range
The 3500/25 149369-01 Enhanced Keyphasor Module operates -30°C to +65°C and stores -40°C to +85°C, enabling continuous operation in industrial automation environments.
Low Power Consumption with High Efficiency
At 3.2 W typical, the 3500/25 149369-01 Enhanced Keyphasor Module efficiently powers multiple channels without overloading 3500 racks.
Modular and Configurable for TMR Applications
The 3500/25 149369-01 Enhanced Keyphasor Module supports paired or TMR configurations for up to eight Keyphasor inputs, enabling automated redundancy in critical machinery monitoring.
