Bently Nevada 3500/46M-03-00 Four-Channel Hydro Monitoring Module

Function Features

• Multifunctional Parameter Monitoring: It realizes simultaneous monitoring of multiple key parameters such as vibration, position, air gap, and dynamic pressure of hydroelectric equipment. It can also support hydro stator end winding monitoring, covering the core monitoring needs of hydroelectric machinery and providing comprehensive data for equipment status evaluation.
• Multimode Configuration and Precise Alarm Logic: It supports multimode configuration with up to eight machine states and is equipped with alarm voting logic and mode-specific thresholds. This enables the module to adapt to different operating states of the equipment, and trigger targeted alarm responses according to the specific state, avoiding false alarms and ensuring the accuracy of alarm information.
• Strong Sensor Compatibility and Signal Processing Capability: It is compatible with multiple mainstream sensors including 3300XL proximity probes and 350300 series dynamic pressure sensors. It integrates signal conditioning and filtering functions to effectively reduce signal interference and ensure the stability and accuracy of the collected data. Its buffered transducer outputs also have short-circuit protection to enhance operational reliability.
• Hot-Swap and Fault Diagnosis: It has hot-swap capability that allows module replacement without shutting down the rack, greatly reducing maintenance downtime and production losses. It also has built-in diagnostic functions that can detect sensor faults and wiring issues in a timely manner, helping maintenance personnel quickly locate and resolve problems.
• Stable Data Transmission Performance: The 4–20 mA recorder outputs can stably transmit monitoring data to recording and upper-level control systems. The fixed output impedance and voltage compliance ensure consistent signal transmission quality across different loads, facilitating smooth data sharing with DCS and SCADA systems.

Application Scenarios

• Hydroelectric Power Plants: It is widely used in hydropower stations to monitor the radial vibration and air gap of hydro turbine rotors and stators in real time. When abnormal data such as excessive vibration or abnormal air gap is detected, it immediately triggers an alarm and can link to the shutdown system to prevent serious damage to the turbine due to safety pin failure or other faults. It also provides continuous data for the maintenance system to optimize the overhaul cycle.
• Industrial Water Pumps and Fans: It is applied to large water pumps and cooling fans in water supply and drainage systems and thermal power auxiliary equipment. It monitors the vibration and dynamic pressure of the pump shafts and fan impellers, predicts mechanical wear and blockage faults in advance, and avoids production interruptions caused by sudden equipment failures.
• Marine Hydrodynamic Equipment: It is installed on offshore hydropower equipment and marine propulsion systems. Its wide operating temperature range and strong anti-humidity performance enable it to adapt to the harsh marine environment. It monitors the vibration and position parameters of marine turbines and water pumps to ensure the safe operation of marine equipment during navigation.
• Hydro Processing Machinery in Metallurgy: It is used in water-cooled rotating equipment of metallurgical plants such as blast furnace circulating pumps and converter cooling fans. It monitors the dynamic pressure and vibration of the equipment in high-temperature and dusty environments, helping operators adjust operating parameters in time to reduce equipment wear and extend service life.
• Small and Medium-Sized Hydropower Units: It is suitable for small and medium-sized hydropower projects such as mountain hydropower stations and farm irrigation power stations. Its modular design and cost-effective advantages meet the basic monitoring needs of small hydropower units. It monitors key parameters of small turbines and transmits data to the centralized control room through simple communication protocols to realize unified management of multiple hydropower units.