1. Product Overview and Core Functionality
The Bently Nevada 3500/33 is a quad-channel vibration monitoring module within the 3500 Machinery Protection System, engineered to safeguard critical industrial equipment by detecting mechanical anomalies in rotating machinery. Designed for high-density monitoring, this module processes signals from accelerometers, velocity sensors, or proximity probes to measure vibration, displacement, and dynamic acceleration. It supports configurable frequency ranges (e.g., 10 Hz to 1 kHz or 1 kHz to 10 kHz), enabling precise detection of imbalances, misalignment, bearing wear, and resonance in turbines, compressors, and pumps. Built for harsh environments, the 3500/33 operates reliably across a temperature range of -40°C to 85°C and complies with API 670 standards. Its modular design integrates seamlessly into the 3500 series framework, delivering 4-20 mA outputs, relay alarms, and real-time data for predictive maintenance strategies.
2. Technical Specifications and System Integration
The 3500/33 module offers advanced diagnostics with adjustable bandpass filtering, user-defined alarm thresholds, and self-test capabilities to ensure measurement accuracy. Each of its four channels supports input sensitivities up to 500 mV/g and provides 24 VDC loop power to sensors, simplifying installation and reducing wiring complexity. Certified for hazardous areas (ATEX/IECEx) and featuring an IP52-rated enclosure, it resists dust, moisture, and electromagnetic interference. Integration with Bently Nevada’s System 1™ software enables comprehensive vibration trend analysis, automated reporting, and predictive maintenance insights. The module’s hot-swappable design and DIN rail mounting ensure minimal downtime during maintenance, while redundant communication ports enhance reliability in power plants, oil refineries, and chemical processing facilities.
3. Applications and Operational Benefits
Deployed in industries such as energy, petrochemicals, and heavy manufacturing, the 3500/33 enhances equipment reliability by enabling continuous monitoring of multiple machinery points. It reduces unplanned downtime by identifying early-stage faults in turbines, gearboxes, and fans, allowing timely maintenance interventions. The module’s compatibility with legacy systems and third-party sensors streamlines upgrades, while its scalable architecture supports expanding operational needs. Fail-safe relay logic and event-triggered data logging ensure rapid response to abnormal vibration levels, improving safety and compliance with industrial regulations. Trusted globally, the 3500/33 exemplifies Bently Nevada’s commitment to delivering robust, precision-engineered solutions that optimize operational efficiency, equipment lifespan, and plant safety.
| Attribute | Description |
| Product Model | 3500/33 |
| Product Name | 3500/33 Axial Position Monitor Module |
| Type | Dual-Channel Axial Position Monitoring Module |
| Primary Function | Monitors axial displacement and thrust position of rotating shafts |
| Input Signals | Accepts signals from eddy-current proximity probes (e.g., 3300/3400 series) |
| Measurement Parameters | Axial position (displacement), thrust bearing wear, and dynamic shaft movement |
| Measurement Range | Typically ±2 mm (±80 mils) or customizable ranges |
| Frequency Response | 0 to 10 kHz (dynamic monitoring) |
| Output Signals | 4–20 mA analog outputs, relay alarms (Alert/Danger), Modbus/TCP communication |
| Power Supply | 18–30 V DC (via 3500 rack) |
| Operating Temperature | –30°C to +65°C (–22°F to +149°F) |
| Environmental Rating | Rack-mounted (NEMA 4X/IP66 compliant) |
| Certifications | ATEX, IECEx, CE, CSA (depending on configuration) |
| Compatibility | Integrates with Bently Nevada 3500 Series racks and monitoring systems |
| Key Features | - Dual-channel redundancy
- Programmable alarm thresholds
- Phase compensation for accuracy
- Real-time diagnostics and trending |
| Typical Applications | Turbines, compressors, pumps, and gearboxes in power generation, oil & gas, and heavy industry |
| Notes | Requires proper probe calibration and gap voltage adjustment for optimal performance. |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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BN 3500/33 Sens IF |16Ch Eddy,4-20mA/Modbus|ATEX/IECEx|Turb/Comp|Pwr/O&G|OEM Images
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