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BENTLY 3500/20 Interface Module
Product Overview: BENTLY 3500/20
The BENTLY 3500/20 interface module is a high-performance industrial component designed as a critical bridge between mechanical health monitoring sensors and Bently Nevada’s 3500 Series Machinery Health Monitoring System. As an essential part of this advanced platform, the 3500/20 serves as an interface for connecting proximity probes, velocity transducers, and other monitoring devices, enabling real-time data acquisition and analysis in mission-critical industrial environments. Engineered for reliability and precision, this module translates raw sensor signals into standardized outputs, supporting early fault detection in rotating machinery such as turbines, compressors, and motors.
Featuring a modular design compatible with the 3500 Rack enclosure, the 3500/20 offers dual-channel input capabilities for simultaneous monitoring of vibration or displacement parameters. Its 24V DC power input and high-resolution analog-to-digital conversion (16-bit ADC) ensure accurate signal conditioning, while the built-in self-diagnostic functions enhance system reliability by identifying connectivity issues or signal anomalies. The module’s -40°C to +85°C operating temperature range and IP20 protection rating make it suitable for harsh industrial settings, from power generation plants to offshore oil platforms.
Within automation ecosystems, the 3500/20 plays a pivotal role in enabling comprehensive machinery health management. By integrating seamlessly with other 3500 Series modules—such as the 3500/32 relay module and 3500/92 communication gateway—it forms a robust foundation for predictive maintenance strategies, reducing unplanned downtime and optimizing operational efficiency.
Technical Specifications: BENTLY 3500/20
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3500/20 |
| Manufacturer | BENTLY NEVADA |
| Product Type | Interface Module |
| Input Channels | 2 channels (proximity/velocity) |
| Input Type | Eddy current/proximity probe (7.87 V/mm) |
| Output Signal | 4–20 mA, 0–10 V DC |
| Communication Protocol | Proprietary (3500 Series backplane) |
| Physical Dimensions | 177.8 mm (H) × 48.3 mm (W) × 254 mm (D) |
| Weight | 1.2 kg |
| Operating Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | 3500 Rack (slot-compatible) |
| Compliance | API 670, IEC 61000-6-2 |
| Country of Origin | United States |
Main Features and Advantages: BENTLY 3500/20
Dual-Channel Signal Conditioning: The 3500/20 processes two independent sensor inputs, enabling simultaneous monitoring of critical parameters like shaft vibration and displacement. This dual-channel design reduces rack space requirements and simplifies system integration for complex machinery setups.
High-Accuracy Signal Conversion: With 16-bit ADC resolution, the module ensures precise conversion of sensor signals, allowing detection of minute mechanical deviations that could indicate developing faults. This accuracy is vital for early identification of issues such as bearing wear or shaft misalignment.
Robust Industrial Design: Built to withstand harsh environments, the 3500/20 features a rugged metal enclosure and wide temperature tolerance, ensuring reliable operation in high-vibration, high-temperature settings. Its IP20 rating protects against dust and accidental contact, enhancing durability in industrial applications.
Seamless System Integration: As part of the 3500 Series, the module interfaces seamlessly with other rack-mounted components, such as the 3500/15 power supply and 3500/42M vibration monitor. This compatibility streamlines system configuration and maintenance, reducing technical complexity.
Proactive Diagnostics: Integrated LED indicators and self-test functions provide real-time feedback on module health, enabling operators to identify and resolve issues promptly. This proactive approach minimizes troubleshooting time and supports predictive maintenance strategies.
Application Areas: BENTLY 3500/20
The BENTLY 3500/20 interface module is essential for industries reliant on precise machinery health monitoring:
- Power Generation: Monitors steam turbines, generators, and auxiliary equipment in thermal, hydro, and nuclear power plants, ensuring early detection of vibrations that could impact grid stability.
- Oil and Gas: Deployed in refineries, pipelines, and offshore platforms to monitor compressors, pumps, and motors, supporting safe operation in harsh, corrosive environments.
- Manufacturing: Integrates with CNC machines, robotic arms, and conveyor systems in automotive and pharmaceutical production, minimizing unplanned downtime and maintaining product quality.
- Water Treatment: Manages vibration monitoring for pumps and agitators in water/wastewater plants, ensuring continuous operation and regulatory compliance.
- Aerospace and Defense: Supports condition monitoring of aircraft engines and ground support equipment, where reliability is critical for mission success.
Related Products: BENTLY 3500/20
- 3500/22M Proximitor Interface Module: A higher-performance variant with advanced signal processing, compatible with the 3500/20 for complex monitoring needs.
- 3500/32 Relay Module (125712-01): Works with the 3500/20 to trigger alarms and trips based on sensor data, enhancing system safety.
- 3500/42M Vibration Monitoring Module: Processes signals from the 3500/20 to analyze vibration trends and provide comprehensive machinery diagnostics.
- 3500/92 Communication Gateway (136180-01): Enables Ethernet connectivity for the 3500/20, facilitating remote monitoring and data integration with SCADA systems.
- 3500/15 Power Supply Module (127610-01): Supplies stable power to the 3500/20 and other 3500 Series modules, ensuring uninterrupted operation.
- 3500/05 Rack Enclosure: Houses the 3500/20 and other modules, providing mechanical support and power distribution.
Installation and Maintenance: BENTLY 3500/20
Pre-installation Preparations:
Before installing the 3500/20, verify the 3500 Rack is properly grounded and the power supply (24V DC) matches the module’s requirements. Clean the rack slot and ensure no debris is present. Slide the module into the designated slot, securing it with the provided retention brackets. Connect sensor cables to the terminal block, following Bently Nevada’s wiring diagram to ensure correct polarity and shielding. Configure the module address using the dip switches and test signal connectivity with a calibrated sensor.
Before installing the 3500/20, verify the 3500 Rack is properly grounded and the power supply (24V DC) matches the module’s requirements. Clean the rack slot and ensure no debris is present. Slide the module into the designated slot, securing it with the provided retention brackets. Connect sensor cables to the terminal block, following Bently Nevada’s wiring diagram to ensure correct polarity and shielding. Configure the module address using the dip switches and test signal connectivity with a calibrated sensor.
Maintenance Recommendations:
- Routine Inspections: Monthly checks include verifying LED status indicators, tightening cable connections, and cleaning dust from the module’s surface to maintain thermal efficiency.
- Calibration Verification: Annually calibrate the 3500/20 using a certified vibration calibrator to ensure measurement accuracy. Reference Bently Nevada’s procedures for step-by-step guidance.
- Firmware Updates: Periodically update the module’s firmware via the 3500 Rack Configuration Software to access new features and bug fixes.
- Spare Parts Management: Keep a spare 3500/20 on hand, leveraging our global supply chain for quick replacement of discontinued or urgent components.
Product Guarantee: BENTLY 3500/20
Our company provides a 12-month quality warranty for the BENTLY 3500/20 interface module, covering hardware defects from non-human causes. During the warranty period, we will replace any module with signal processing issues, connectivity failures, or physical damage at no cost. For urgent needs or discontinued models, our extensive inventory and global logistics network ensure prompt fulfillment, minimizing downtime and supporting continuous industrial operation.
With 17 years of expertise in industrial control distribution, we are committed to reliable products and exceptional service. The 3500/20 exemplifies our dedication to quality, offering the precision and durability required for critical machinery monitoring. Contact us today to enhance your automation system with this robust interface module.
Note: All product names, logos, and brands are property of their owners. This document is informational and does not substitute for Bently Nevada’s official technical manuals.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
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