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- Bently Nevada
- 3500/50 133388-02+133442-01
- Tachometer Module + I/O Module
- USA
- 241.3 x 24.4 x 241.8 mm
- 0.82 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 3
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada 3500/50 (133388-02 + 133442-01) is a combined Tachometer and I/O Module engineered for high-precision rotational speed monitoring and signal management in industrial rotating machinery. Part of the Bently Nevada 3500 Series, this module provides real-time RPM data while routing multiple sensor signals, ensuring robust machinery protection and enabling predictive maintenance programs.
Its compact, rack-mounted design and industrial-grade construction allow continuous operation in demanding environments, supporting turbines, compressors, pumps, and other critical machinery.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 3500/50 |
| Part Number | 133388-02 + 133442-01 |
| Product Type | Tachometer Module + I/O Module |
| Function | Rotational speed monitoring and signal routing |
| Dimensions | 241.3 × 24.4 × 241.8 mm |
| Weight | 0.82 kg |
| Installation | Rack-mounted (3500 system rack) |
| Power Supply | Backplane-powered |
| Signal Input | Proximity probes, magnetic pickups, or speed sensors |
| Signal Output | Conditioned tachometer and routed signals to monitoring/protection systems |
| Application | Rotating machinery speed monitoring and signal management |
| Operating Environment | Industrial-grade, continuous operation |
Function and Working Principle
The 3500/50 Tachometer + I/O Module integrates two critical functions:
- Rotational Speed Monitoring
- Continuously measures machinery RPM via proximity probes, magnetic pickups, or speed sensors
- Detects overspeed or abnormal rotation conditions for machinery protection
- I/O Signal Routing
- Collects and conditions multiple input signals from sensors
- Routes data to monitoring and protection systems efficiently
- Reduces wiring complexity while ensuring signal integrity
This integrated design enables precise real-time monitoring and efficient signal management in industrial control systems.
Role in Industrial Control Systems
Within the Bently Nevada 3500 system, this combined module:
- Monitors rotational speed for turbines, compressors, and pumps
- Provides early detection of overspeed or abnormal RPM
- Routes conditioned signals to monitoring and protection systems
- Integrates multiple sensor inputs efficiently
- Supports predictive maintenance programs to reduce unplanned downtime
It serves as a key component for reliable operation of high-speed rotating machinery.
Industrial Applications
The 3500/50 (133388-02 + 133442-01) module is widely used in:
- Gas and steam turbine power plants
- Industrial compressors and pumps
- Oil & gas and petrochemical facilities
- Continuous process plants with critical rotating machinery
- Systems requiring both speed monitoring and efficient I/O signal integration
Its industrial-grade design ensures dependable operation in harsh environments.
Installation and System Integration
Installation guidelines:
- Mounted in a Bently Nevada 3500 system rack
- Connected to speed sensors, magnetic pickups, or proximity probes
- Integrated with preamplifier and additional I/O modules
- Powered via the rack backplane
- Calibration required for accurate RPM measurement
Correct installation ensures reliable performance and precise speed monitoring.
Compatible System Components
This combined module works with:
- 3500/50 Tachometer modules
- Preamplifier and additional I/O modules
- Magnetic pickups, proximity probes, and speed sensors
- Communication and relay modules
- 3500 Series rack chassis and backplane power supplies
These components provide a complete machinery speed monitoring and protection solution.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 133388-02 | Tachometer Module | Standard speed monitoring | Turbines and pumps |
| 133388-02 + 133442-01 | Tachometer + I/O Module | Integrated speed + signal routing | Rotating machinery |
| 3500/42M | Seismic Monitor | Multi-parameter machinery monitoring | Industrial machinery |
| 3500/44M | Vibration Monitor | High-speed turbine vibration monitoring | Aeroderivative turbines |
| 3500/45 | Location Monitor | Shaft position and alignment | Rotating machinery |
Key Advantages
- Accurate real-time rotational speed monitoring
- Integrated I/O signal routing for multiple sensors
- Reliable signal amplification and conditioning
- Continuous operation in industrial environments
- Early detection of overspeed or abnormal RPM
- Simplifies integration and reduces wiring complexity
- Supports predictive maintenance and machinery protection
- Compact, rack-mounted design (0.82 kg)
Technical FAQs
What is the primary function of this combined module?
It measures machinery RPM and routes multiple sensor signals to monitoring and protection systems.
Which sensors are compatible?
Proximity probes, magnetic pickups, and speed sensors installed on rotating machinery.
Where is it installed?
Mounted in a 3500 system rack alongside preamplifier and additional I/O modules.
Does it support predictive maintenance?
Yes, it provides real-time speed data and signal integration for early detection of abnormalities.
Conclusion
The Bently Nevada 3500/50 (133388-02 + 133442-01) Tachometer + I/O Module is a reliable, industrial-grade solution for real-time rotational speed monitoring and multi-sensor signal management. Its integrated design, accurate signal processing, and seamless compatibility with 3500 series modules enhance operational safety, predictive maintenance, and machinery protection in demanding industrial environments.