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- Bently Nevada 133434-01 3500/50 Tachometer I/O Module External Terminations
SKU: 133434-01
Bently Nevada 133434-01 3500/50 Tachometer I/O Module External Terminations
The Bently Nevada 133434-01 is a 2-channel Tachometer I/O Module with external terminations for the 3500/50 system. It accepts signals from proximity probes or magnetic pickups, providing reliable speed monitoring and acceleration data for critical machinery protection.
Technical Function and System Interface
The Bently Nevada 133434-01 serves as the specialized I/O interface for the 3500/50 and 3500/50M Tachometer Modules within the 3500 Machinery Protection System. This module is installed in the rear of the 3500 rack, where it receives high-frequency pulse signals from speed sensors and routes them to the main processing card. Because this specific version utilizes external terminations, it connects to a separate External Termination (ET) Block via a multi-conductor cable. Consequently, this architecture allows for more flexible cabinet wiring and simplifies maintenance by moving the physical field-wiring points away from the high-density rear of the rack.
Core Technical Specifications
- Brand:Â Bently NevadaÂ
- Model Number:Â 133434-01
- Module Type:Â Tachometer I/O Module with External Terminations
- Compatible Main Monitor:Â Bently Nevada 3500/50 or 3500/50M
- Channels:Â 2 independent speed/position channels
- Input Range:Â +10.0 V to -24.0 VÂ
- Input Compatibility:Â Proximity Probes or Magnetic Pickups (MPU)
- Frequency Support:Â 0.0167 Hz to 20 kHzÂ
- Operating Temperature: -30°C to +65°CÂ
- Weight:Â 0.20 kgÂ
- Rack Space:Â 1 full-height rear slot
Industrial Applications and Operational Benefits
Industrial operators utilize the 133434-01 module to facilitate high-accuracy speed monitoring and overspeed protection on critical rotating assets. The 3500/50 system provides real-time diagnostics that are essential for steam turbines, gas turbines, and large-scale centrifugal compressors. Furthermore, the module supports sophisticated monitoring modes including:
- Rotor Speed and Peak Speed tracking
- Zero-speed detection for safe machine turning/braking
- Rotor acceleration monitoring for startup safety
- Reverse rotation notification to prevent back-flow damage
- Conditioned Keyphasor signal output for system-wide phase reference
Installation and External Termination
Technicians mount the 133434-01 directly behind the tachometer monitor module in the 3500 chassis. Since this is the external termination (ET) version, the module features a dedicated D-sub or multi-pin connector rather than integrated screw terminals. This allows the user to link the module to an ET block (such as part number 133442-01) using a pre-fabricated cable. Moreover, this setup effectively separates the high-frequency signal inputs from DC power and relay wiring, which minimizes electromagnetic interference (EMI) and ensures a high-integrity pulse stream for accurate RPM calculations.
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Model number: | 3500/05-01-02-01-00-01 | Module Type: | System Rack | |
Manufacture: | Bently Nevada | Condition: | Brand New | |
Range of Product: | 3500 System | Lead time: | In Stock | |
Weight: | 5.95 kg | HS CODE: | 8537101190 | |
Dimension: | 48.2x28x26.5cm | MOQ: | 1 | |
Product Origin: | USA | System: | TSI | |
Discontinued on: | active | Communication Service: | Ethernet router |
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