Bently 3500/25 125792-01

Description

• Technical Specifications
  • Power Parameters: It adopts a 24V DC power supply with a stable power consumption of 3.2 watts, which imposes little load on the overall 3500 series rack power system.
  • Input Performance: It has two input channels. The non-isolated I/O module accepts input voltages ranging from -0.8V to -21.0V, while the isolated I/O module supports an input voltage range of +5V to -11V. It receives signals from eddy current probes or magnetic sensors, and passive magnetic sensors require a shaft rotational speed exceeding 200 rpm.
  • Output Performance: It is equipped with two buffered outputs, capable of delivering a 40Vp-p output voltage, with a maximum load of 504 ohms and a maximum current of 20mA per channel. Buffered keyphasor output signals are accessible via both coaxial connectors on the front panel and European-style connectors on the back of the rack.
  • Measurement Indicators: It covers a frequency range of 0.017 to 20 kHz and a rotational speed measurement range of 0 to 10000 RPM. It achieves a measurement accuracy of ±0.05%, a resolution of 0.1 RPM, and a fixed sampling rate of 1000 Hz, ensuring precise capture of rotational speed and phase data.
  • Physical and Environmental Indicators: It has dimensions of 119.9 mm × 24.4 mm × 25.4 mm and weighs 0.34 kg. The non-isolated I/O version operates at -30°C to +65°C, and the isolated I/O version operates at 0°C to +65°C. It can be stored at temperatures between -40°C and +85°C and works normally in environments with a maximum 95% non-condensing humidity.
• Function Features
  • Dual-Channel High-Precision Signal Conversion: With two independent input channels, it accurately converts analog signals from proximity probes or magnetic sensors into digital keyphasor signals. The high measurement accuracy and resolution guarantee reliable data support for subsequent vibration amplitude and phase analysis of rotating machinery.
  • Flexible Isolation and Non-Isolation Options: It offers both isolated and non-isolated I/O module options. The isolated I/O module provides insulation for systems such as control systems when keyphasor signals are connected in parallel to multiple devices, making it suitable for electromagnetic sensor applications and scenarios requiring signal isolation.
  • Redundant Configuration Adaptability: It supports dual-module parallel operation. In triple modular redundancy applications, two modules can work simultaneously to provide primary and secondary keyphasor signals to other modules in the rack, enhancing the stability and reliability of the entire monitoring system.
  • Intuitive Operational Status Indication: The front panel is equipped with LED indicators. The OK indicator alerts to internal faults detected in the module, and the TX/RX indicator lights up when the module communicates with the rack interface module, enabling on-site personnel to quickly identify the module’s working status.
  • Signal Limiting Protection: It is built with signal limiting functionality that restricts input signals within the specified voltage range. This prevents module damage caused by excessive signal voltages and ensures the module’s long-term stable operation.
• Application Scenarios
  • Oil and Gas Industry: It is installed on offshore drilling rigs and onshore pipeline compressors. It monitors the shaft rotational speed and phase parameters of key rotating components, providing accurate data for equipment fault diagnosis. Its stable performance under harsh conditions such as temperature fluctuations and vibration adapts to the harsh working environment of the oil and gas industry.
  • Power Generation Industry: It is deployed in thermal and nuclear power plants to match steam turbines and generators. It provides keyphasor signals for the 3500 series monitoring system, helping technicians analyze the 1X amplitude and phase of the equipment shaft. It timely detects abnormal rotational speed and vibration issues to avoid major power generation accidents.
  • Petrochemical Industry: It is applied to rotating machinery such as reaction tower agitators and gearboxes in refineries. The isolated I/O module option is compatible with the flammable and explosive environment of petrochemical plants. It ensures the safe operation of equipment by stably monitoring shaft operation parameters and triggering early warnings of potential faults.
  • Metallurgical Industry: It is used in steel mill rolling mills and blast furnace fans. It operates reliably in high-temperature and dusty environments, continuously monitoring the rotational status of the equipment shaft. It provides data support for preventive maintenance and reduces production interruptions caused by sudden equipment failures.
  • Heavy Machinery Manufacturing: It is integrated into the test process of large motors and water pumps. It accurately measures the rotational speed and phase data of products during commissioning, helping manufacturers verify product performance, optimize product design, and improve the quality and reliability of finished machinery.