Product Short Description
- Product Name
- 4-Channel Dynamic Pressure & Vibration Monitor Module for Bently Nevada 3500 Series Machinery Protection System
- Product Introduction
This module is a dual-purpose, full-height monitoring component exclusively engineered for Bently Nevada’s 3500 series machinery protection system. It integrates dynamic pressure and vibration monitoring capabilities into a single module, designed to safeguard rotating, reciprocating, and turbomachinery by detecting early-stage faults such as cavitation, surge, rotor imbalance, bearing wear, and pressure pulsation. It accepts input signals from piezoelectric pressure transducers, accelerometers, velocity sensors, and eddy current proximity probes, converting raw analog data into actionable metrics for real-time monitoring and fault diagnosis. The module supports programmable alarm/trip logic, seamless integration with 3500 series racks and upper-level control systems, and adheres to global industrial standards including API 670 and ISO 10816. It operates independently of the rack’s critical monitoring path while offering redundant configuration options, making it a cost-effective and versatile solution for pressure- and vibration-sensitive industrial applications.
Description
- Technical Specifications
- Power Parameters: Operates on 24V DC power supply (tolerance ±10%), with a maximum power consumption of 10 watts. Draws a nominal current of 417mA at 24V DC, fully compatible with the 3500 series rack’s power distribution system.
- Input Configuration: 4 independent, isolated channels, each supporting dual measurement modes:
- Dynamic Pressure: Piezoelectric pressure transducers (IEPE), 10 mV/bar to 100 mV/bar sensitivity, ±10V DC (peak-to-peak) input range, 100 kΩ input impedance.
- Vibration: Accelerometers (100 mV/g to 500 mV/g), velocity sensors (20 mV/mm/s to 100 mV/mm/s), proximity probes (-2V to -21V DC), 50 kΩ input impedance.
- Measurement Capabilities:
- Frequency Range: 0.1 Hz to 10 kHz (dynamic pressure/vibration), 0–1000 bar (static pressure, sensor-dependent).
- Measurement Types: Peak/peak-to-peak/RMS pressure/vibration, pressure waveform capture, displacement (proximity probes), velocity (velocity sensors), acceleration (accelerometers).
- Accuracy: ±0.5% of full scale, 24-bit ADC resolution for high-precision data conversion.
- Output Performance: 4 programmable 4–20mA analog outputs (1 per channel), 8 relay outputs (2 per channel, configurable for alarm/trip). Relay contact rating: 30V DC/2A, 120V AC/1A. Supports waveform data output via Ethernet for post-fault analysis.
- Physical & Environmental Ratings: Dimensions of 241.3 mm (depth) × 24.4 mm (width) × 120.7 mm (height), net weight of 1.0 kg. Operating temperature range: -30°C to +65°C; storage temperature: -40°C to +85°C. Operates in 0–95% non-condensing humidity, IP20 protection rating (requires rack-mounted enclosure).
- Compliance Standards: Meets API 670 (machinery protection), ISO 10816 (vibration/pressure measurement), IEC 61000-6-4 (electromagnetic compatibility), and CSA/NRTL/C Class I, Division 2 hazardous location certification.
- Function Features
- Dual-Purpose Monitoring Integration: Combines dynamic pressure and vibration measurement in one module, eliminating the need for separate components and reducing rack space requirements. Ideal for machinery where both parameters are critical (e.g., pumps, compressors, turbines).
- Multi-Sensor Compatibility: Supports a wide range of industrial sensors (pressure transducers, accelerometers, velocity sensors, proximity probes) without additional signal converters, adapting to diverse machinery monitoring requirements.
- Programmable Alarm & Trip Logic: Each channel allows independent configuration of alarm (warning) and trip (danger) thresholds for pressure, vibration, displacement, or velocity. Supports time-delayed triggers, latching/non-latching relay actions, and custom logic (AND/OR) to prevent false alarms.
- Waveform Capture & Data Logging: Captures high-resolution pressure/vibration waveforms (up to 10 kHz sampling rate) and stores up to 10,000 historical data points per channel in non-volatile memory. Data is retained during power outages for root-cause analysis.
- Redundant Configuration Support: Compatible with 3500 series triple modular redundancy (TMR) systems. Two modules can be paired for hot-standby operation, ensuring continuous monitoring if one module fails.
- Seamless System Integration: Communicates with 3500 rack interface modules via the backplane, supporting Modbus TCP/IP, Ethernet/IP, and Profinet protocols. Integrates with System 1 condition monitoring software for remote monitoring, data trending, and predictive maintenance.
- Self-Diagnostic Capabilities: Built-in diagnostics monitor module hardware, sensor connections, and signal integrity. Front-panel LED indicators (Power OK, Channel Active, Alarm, Trip) and software-based fault codes enable rapid troubleshooting.
- Application Scenarios
- Power Generation Industry: Deployed in thermal, hydro, and nuclear power plants to monitor steam turbines (steam pressure fluctuations, rotor vibration), feedwater pumps (cavitation detection, bearing vibration), and boiler combustion systems (combustion instability, pressure surges). Triggers alarms to prevent equipment damage and unplanned power outages.
- Oil & Gas Industry: Installed on offshore drilling rigs (drill string pressure/vibration), pipeline compressors (surge detection, rotor imbalance), and gas turbines (combustion chamber pressure, bearing vibration). Withstands high vibration, temperature fluctuations, and corrosive environments, ensuring safe extraction and transportation.
- Petrochemical Industry: Used to monitor reciprocating compressors (cylinder pressure, valve wear vibration), reaction towers (process pressure fluctuations), and pumps (cavitation, seal leakage vibration). Isolated input channels prevent ground loops, while hazardous location certification supports use in flammable/explosive zones.
- Marine & Naval Applications: Applied to ship propulsion systems (engine cylinder pressure, turbine vibration), marine turbines (steam pressure, rotor imbalance), and auxiliary pumps (hydraulic pressure monitoring). The rugged design withstands salt fog, shock, and vibration, ensuring reliable operation during long voyages.
- Heavy Machinery Manufacturing: Integrated into test benches for large industrial pumps, compressors, and turbines. Provides simultaneous pressure and vibration data during product validation, enabling manufacturers to optimize design, verify performance, and ensure compliance with industry standards.
- Water & Wastewater Industry: Deployed in water treatment plants to monitor pumps (cavitation detection, bearing vibration) and blowers (pressure pulsation, impeller imbalance). Supports predictive maintenance, reducing unplanned downtime and ensuring uninterrupted water supply.
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