Bently Nevada 3500/61 Six-Channel Temperature Monitoring Module with Recorder Outputs

Function Features

• Dual Sensor Input Compatibility: The non-isolated version can be flexibly configured to accept individual or mixed inputs of Resistance Temperature Detectors and thermocouples, while the thermocouple-isolated version provides 250 VDC channel-to-channel isolation to eliminate signal interference from external electrical sources in complex industrial environments.
• Independent Recorder Outputs: Each of the six channels is equipped with a dedicated 4–20 mA recorder output. This allows the module to continuously transmit temperature data to recording devices or upper-level systems, facilitating post-fault analysis, operational trend tracking, and regular maintenance data reviews.
• Programmable Alarm Thresholds: Users can set alarm and danger thresholds within 0–100% of the full measurement scale based on specific equipment operating requirements. The adjustable delay settings for alert and danger signals effectively avoid false alarms caused by transient temperature fluctuations.
• Seamless Rack Integration: It occupies one full-height slot in the 3500 series rack and can be seamlessly integrated with other modules in the same series. The unified configuration via the 3500 rack configuration software simplifies the setup process and ensures consistent system operation logic.
• Clear Status Indication: The three front-panel LED indicators clearly convey the module’s operational status. The OK light confirms normal module operation, the TX/RX light indicates data transmission status with other rack modules, and the Bypass light shows whether the module is in a bypass state, enabling maintenance personnel to quickly identify operational issues.

Application Scenarios

• Oil and Gas Industry: It is installed on natural gas compressors, oil pipeline pumps, and turboexpanders. It monitors the temperature of bearings and cylinder walls in equipment operating in high-pressure and flammable environments. The recorder outputs store long-term temperature data to support predictive maintenance and prevent unplanned shutdowns.
• Power Generation Industry: It is applied to steam turbines, generators, and boiler feed pumps in thermal power plants. It focuses on monitoring the metal temperature of key components such as turbine bearings and generator stators, ensuring the stable operation of power generation equipment and providing data support for grid load adjustment.
• Metallurgical Industry: It is integrated into the monitoring systems of blast furnace blowers, rolling mill main motors, and converter fans in steel plants. It endures high-temperature and high-dust working conditions to monitor the temperature of rotating components in real time, avoiding equipment damage due to overheating during high-load operations.
• Chemical Industry: It is used in the temperature monitoring systems of reactor agitators, chemical pumps, and heat exchanger motors. It monitors the temperature of equipment in corrosive and volatile chemical environments, ensuring compliance with process temperature requirements and preventing safety accidents caused by temperature deviations.
• General Manufacturing Industry: It is deployed on gearboxes, air compressors, and water pumps in automobile parts factories and electronic component production lines. It continuously tracks the temperature of transmission and power components, reduces production line downtime caused by mechanical failures, and improves overall production efficiency.