
Product Overview
The BENTLY 133442-01 is a specialized speed input/output (I/O) module engineered by Bently Nevada, a globally recognized leader in machinery protection and condition monitoring. Designed as an integral component of the renowned 3500 Series monitoring system, the BENTLY 133442-01 serves as a critical interface between rotating equipment and the central monitoring rack, delivering precise speed and phase reference data essential for turbine control, machinery protection, and predictive maintenance. Its primary function is to accept signals from magnetic pickups or proximity probes mounted on rotating shafts, condition these signals, and transmit accurate speed and phase information to the system’s monitoring modules.
Positioned as a high-reliability I/O solution, the BENTLY 133442-01 is built to meet the demanding requirements of industries where continuous operation and asset integrity are paramount. The module supports a wide range of input signal types and provides galvanic isolation, ensuring that sensitive monitoring electronics are protected from electrical noise and transient voltages commonly found in industrial environments. Its compatibility with the 3500 Series platform allows seamless integration into both new installations and retrofits, making it a flexible choice for plant engineers and automation specialists.
The core value of the BENTLY 133442-01 lies in its ability to provide dependable, real-time speed data that enables advanced protection strategies such as overspeed detection, speed ramping analysis, and phase-matched diagnostics. By facilitating early detection of mechanical issues and supporting automated safety responses, this module plays a vital role in reducing unplanned downtime and extending the service life of critical rotating assets.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 133442-01 |
| Manufacturer | Bently Nevada |
| Product Type | Speed I/O Module |
| Series Compatibility | 3500 Series Monitoring System |
| Input Signal Types | Magnetic pickup, Proximity probe |
| Number of Channels | Configurable (per system design) |
| Isolation | Galvanic isolation between channels |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Tolerance | Up to 95% non-condensing |
| Mounting | 3500 Series rack mount |
| Power Requirements | Supplied via backplane |
| Dimensions | Standard 3500 module form factor |
Main Features and Advantages
The BENTLY 133442-01 stands out for its precision and reliability in demanding industrial settings. Its advanced signal conditioning circuitry ensures accurate speed and phase data even in environments with high electromagnetic interference, making it ideal for use in power generation, oil and gas, and heavy manufacturing facilities.
Robust signal processing: The module’s ability to process signals from both magnetic pickups and proximity probes provides flexibility in sensor selection, allowing engineers to tailor the monitoring solution to specific machinery and operating conditions. This adaptability is crucial for applications ranging from steam turbines to compressors and large motors.
Enhanced system protection: By delivering real-time speed and phase information, the BENTLY 133442-01 enables the 3500 Series system to execute critical protection functions such as overspeed trips and speed trend analysis. This proactive approach to machinery management helps prevent catastrophic failures and supports compliance with industry safety standards.
Seamless integration: Designed for straightforward installation within the 3500 Series rack, the module supports hot-swapping and automatic recognition by the system, minimizing downtime during maintenance or upgrades. Its rugged construction and wide operating temperature range ensure long-term performance in harsh environments, while galvanic isolation protects both the module and connected equipment from electrical surges.











