Bently 330980-51-00

Technical Specifications

• Part Number: 330980-51-00
• Device Type: Multi-function machinery protection monitor (vibration/position/temperature/speed)
• Core Monitoring Parameters: Vibration: Velocity (RMS), acceleration (peak), shaft displacement (peak-to-peak)
• Position: Shaft axial position, radial vibration
• Thermal: Bearing temperature, stator temperature
• Mechanical: Rotor speed, phase angle

Function Features

• Optimized 51 mm/s Vibration Range: The 0–51 mm/s RMS velocity range is tailored for machinery with mid-to-high vibration profiles—such as large centrifugal pumps, industrial turbines, and heavy-duty compressors—that operate just above standard low-range limits. This eliminates the need for range scaling, ensuring maximum measurement resolution across critical operating conditions.
• Holistic Multi-Parameter Monitoring: Integrates vibration, position, temperature, and speed measurements in one unit, providing a complete picture of machinery health. This enables cross-parameter correlation (e.g., linking vibration spikes to temperature increases) for more accurate fault diagnosis than single-parameter monitors.
• API 670 Compliance for Critical Protection: Meets all requirements of API Standard 670 for machinery protection systems, including redundant components, fault-tolerant logic, and alarm response times—making it suitable for safety-instrumented systems (SIS) in oil & gas and petrochemical applications.
• Redundant & Hot-Swappable Power: Dual isolated 24 V DC inputs with hot-swappable power modules ensure uninterrupted operation if one power source fails. This fault tolerance is critical for mission-critical machinery where unmonitored operation could lead to catastrophic failures.
• Advanced Alarm & Trip Logic: 10 configurable relays support multi-level alarm strategies (warning, high, critical, unsafe) with user-defined time delays and latching/non-latching settings. The monitor includes pre-built logic templates for common machinery types (turbines, pumps, compressors) to simplify configuration.
• High-Resolution Touchscreen HMI: 5-inch Full HD touchscreen with anti-glare coating provides clear visibility in bright industrial environments. The intuitive interface displays real-time parameter values, trend graphs, alarm history, and diagnostic data—enabling on-site operators to quickly assess machinery health without specialized training.
• Comprehensive Data Logging & Analysis: Built-in 16 GB non-volatile memory stores up to 1 million event logs (alarms, faults, configuration changes) and 10,000 hours of trend data at 1-second intervals. Data can be exported via USB or Ethernet for analysis in predictive maintenance software (e.g., Bently Nevada’s System 1).
• Industrial-Grade Connectivity: Gigabit Ethernet supports high-speed data transfer to DCS/SCADA systems (e.g., Siemens PCS 7, Emerson DeltaV, Rockwell Allen-Bradley), while Modbus TCP/IP and Ethernet/IP compatibility ensures seamless integration with existing plant networks. RS485 provides a reliable backup for remote locations.
• Precision Measurement & Temperature Stability: ±0.15% vibration accuracy and temperature-compensated circuitry ensure consistent readings across extreme operating temperatures. The monitor maintains precision even in harsh environments, preventing false alarms and ensuring reliable fault detection.
• Built-In Self-Diagnostics: Continuously monitors internal components (CPU, memory, power supplies, I/O modules) and sensor inputs. Detects sensor faults (open circuits, short circuits, signal degradation) and communicates them via alarms and HMI messages—enabling proactive maintenance of the monitoring system itself.
• Wide Sensor Compatibility: Optimized for Bently’s 3300 XL sensors but supports third-party RTDs, thermocouples, and encoders—providing flexibility for retrofits and mixed-sensor environments common in brownfield industrial sites.

Application Scenarios

• Power Generation (Combined-Cycle Gas Turbines): Installed in combined-cycle power plants to protect gas and steam turbines. The 51 mm/s vibration range accommodates transient vibrations during startup/shutdown, while temperature and position monitoring tracks bearing health and rotor alignment. API 670 compliance ensures compliance with grid reliability standards.
• Oil & Gas (Subsea Pipeline Compressors): Deployed in onshore control rooms for remote monitoring of subsea compressors. The monitor receives data from subsea sensors via fiber optic links, tracking vibration (51 mm/s range), temperature, and speed. Redundant power and high-reliability alarms prevent costly subsea equipment failures.
• Petrochemical (Hydrocracking Units): Used to protect hydrocracking reactor feed pumps and compressors. The multi-parameter monitoring correlates vibration spikes with temperature increases, enabling early detection of catalyst fouling or bearing wear. ATEX certification (optional) allows installation in hazardous Class I, Division 2 areas.
• Heavy Manufacturing (Steel Mill Rolling Stands): Installed in steel mills to monitor rolling stand gearboxes and motors. The 51 mm/s vibration range handles the high operational vibration of rolling equipment, while phase angle measurement supports rotor balancing during operation—reducing downtime and improving product quality.
• Marine (LNG Carrier Propulsion Systems): Deployed in LNG carriers to monitor dual-fuel propulsion engines and compressors. The monitor tracks vibration, temperature, and speed in cryogenic environments, while the anti-glare touchscreen ensures visibility in bright engine rooms. Modbus RTU integration connects to the ship’s navigation and control systems.
• Renewable Energy (Geothermal Turbines): Installed in geothermal power plants to monitor steam turbines. The 51 mm/s vibration range accommodates vibration from mineral-laden geothermal steam, while temperature monitoring tracks corrosion in high-heat components. Data logging supports predictive maintenance for remote geothermal sites.
• Chemical Processing (Polymer Reactor Agitators): Used to monitor large agitators in polymer reactor systems. The monitor tracks vibration velocity and bearing temperature, detecting impeller wear or misalignment that could affect product consistency. Configurable alarms align with batch process timelines to avoid scrapping expensive batches.
• Mining (Copper Concentrator SAG Mills): Deployed in copper concentrators to protect semi-autogenous grinding (SAG) mills. The 51 mm/s vibration range handles the extreme vibration of grinding operations, while speed and temperature monitoring detects liner wear and bearing degradation. The IP55 housing resists dust and water in mining environments.