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BENTLY 3701/55 323174-01 Product Specification
Product Overview
The BENTLY 3701/55 323174-01 is a high-precision quad-channel vibration monitoring module designed for BENTLY’s advanced 3700 Series Machinery Protection System. Engineered to deliver real-time vibration analysis for critical rotating equipment, this module serves as a cornerstone in industrial automation systems, enabling continuous monitoring of turbines, compressors, and generators across industries such as oil and gas, power generation, and manufacturing. As part of the 3700 Series, the BENTLY 3701/55 323174-01 integrates seamlessly with other system components to form a comprehensive machinery health management solution, supporting predictive maintenance strategies for high-value industrial assets.
Featuring four independent input channels, the BENTLY 3701/55 323174-01 processes signals from proximity probes and accelerometers, converting analog inputs into precise vibration data with 16-bit resolution. Its software-configurable design allows users to customize alarm thresholds, filter settings, and data logging parameters, ensuring optimal performance in diverse operational environments. The module’s rugged IP23-rated enclosure and conformal-coated PCBs protect against dust, moisture, and electromagnetic interference (EMI), while its compact form factor (210 mm × 150 mm × 100 mm) and 2.3 kg weight facilitate easy installation in 19″ control racks.
In automation architectures, the BENTLY 3701/55 323174-01 acts as a frontline diagnostic tool, detecting early signs of mechanical degradation such as imbalance, misalignment, or bearing wear. Its high-frequency response (up to 20 kHz) ensures accurate capture of dynamic movements, while the dual RS-485 and Ethernet interfaces enable seamless integration with PLCs, HMIs, and supervisory control systems. By delivering reliable vibration data, the module helps minimize unplanned downtime, optimize maintenance schedules, and enhance operational safety in mission-critical applications.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | BENTLY 3701/55 323174-01 |
| Manufacturer | BENTLY NEVADA |
| Product Type | Quad-Channel Vibration Monitoring Module |
| Input Channels | 4 channels (proximity probes/accelerometers) |
| Frequency Range | 0–20 kHz |
| Input Signal Range | 0–10 VDC, 4–20 mA |
| Communication Interfaces | 2 × RS-485, 1 × 10/100BaseT Ethernet |
| Power Supply | 24 VDC ±10% |
| Physical Dimensions | 210 mm (W) × 150 mm (H) × 100 mm (D) |
| Weight | 2.3 kg |
| Operating Temperature | -25°C to +60°C |
| Humidity | 5–95% non-condensing |
| Certifications | CE, UL, ISO 10816 |
Main Features and Advantages
High-Resolution Multi-Channel Monitoring: The BENTLY 3701/55 323174-01 supports simultaneous monitoring of four vibration points, enabling comprehensive analysis of complex machinery such as multi-stage turbines. Its 16-bit ADC ensures precise measurement of vibration amplitude and frequency, critical for early fault detection.
Flexible Software Configuration: Users can tailor the module’s settings via BENTLY’s proprietary software, adjusting alarm levels, filter types (low-pass, band-pass), and data sampling rates to match specific machinery requirements. This flexibility reduces the need for hardware modifications, streamlining system deployment in diverse industrial setups.
Dual Communication Redundancy: With dual RS-485 ports and an Ethernet interface, the module enables redundant network configurations, ensuring continuous data transmission in mission-critical applications. This feature is vital for 24/7 operations where network downtime is unacceptable.
Rugged Industrial Design: Constructed with an IP23-rated metal enclosure and anti-vibration mounting brackets, the module withstands harsh environments, including high temperatures, humidity, and mechanical stress. Its self-shielded design minimizes electromagnetic interference, ensuring reliable measurements in dense industrial installations.
Advanced Diagnostic Capabilities: Built-in LED indicators and diagnostic software monitor channel health, power status, and network traffic in real time. The module also logs historical data for post-fault analysis, enabling proactive maintenance and reducing mean time to repair (MTTR).
Application Areas
The BENTLY 3701/55 323174-01 is widely deployed in industries where precise vibration monitoring is critical to operational reliability:
-
Oil and Gas:
- Monitors offshore platform compressors and subsea pumps for early signs of cavitation or bearing wear, preventing unplanned shutdowns in upstream and downstream operations.
- Integrates with emergency shutdown systems (ESD) to protect refinery turbines from catastrophic failure during process anomalies.
-
Power Generation:
- Analyzes vibration in steam and gas turbines to optimize performance and prevent stator-rotor contact in power plants, enhancing energy production efficiency.
- Supports condition-based maintenance programs by providing real-time rotor dynamics data, enabling scheduled repairs to minimize downtime.
-
Manufacturing:
- Controls vibration in high-speed packaging machinery and robotic arms, enhancing product quality and reducing production losses in automotive and pharmaceutical plants.
- Monitors motor bearings in conveyor systems to predict maintenance needs, improving overall equipment effectiveness (OEE).
-
Marine and Aerospace:
- Ensures reliable operation of ship propulsion systems by monitoring turbine vibrations, supporting safe navigation in diverse marine environments.
- Supports testing and maintenance of aircraft engine components in aerospace facilities, where precision vibration data is essential for performance evaluation.
Related Products
- BENTLY 3701/22 323172-01: A dual-channel vibration module, suitable for smaller setups, often used as a cost-effective alternative to the BENTLY 3701/55 323174-01 for simpler systems.
- BENTLY 3700/15 323155-01: A power input module that supplies stable 24 VDC to the BENTLY 3701/55 323174-01 and other 3700 Series components, ensuring uninterrupted operation.
- BENTLY 3701/65 323176-01: A speed/torque monitoring module that pairs with the BENTLY 3701/55 323174-01 to provide comprehensive machinery health analysis, combining vibration and rotational data.
- BENTLY 3700/93 323193-01: A communication gateway module that enables the BENTLY 3701/55 323174-01 to interface with Ethernet/IP networks, supporting remote diagnostics via cloud-based platforms.
- BENTLY 3700/42 323142-01: A temperature monitor module that complements vibration data by analyzing thermal performance, providing a comprehensive view of machinery health.
Installation and Maintenance
Pre-installation Preparation:
Before installing the BENTLY 3701/55 323174-01, ensure the following:
Before installing the BENTLY 3701/55 323174-01, ensure the following:
- Verify the power supply meets 24 VDC ±10% and that the control rack is properly grounded to prevent electrostatic discharge (ESD). Use a multimeter to confirm voltage stability before connecting the module.
- Use BENTLY’s configuration software to define input channel types (proximity probe or accelerometer) and set initial alarm thresholds based on machinery specifications.
- Mount the module in a 19″ rack with at least 50 mm of clearance for airflow, securing it with the provided brackets to minimize vibration-induced displacement.
Maintenance Recommendations:
- Routine Inspections: Monthly visual checks of front-panel LEDs (green for normal operation, red for faults) and cleaning of dust from ventilation slots to maintain optimal cooling. Use a soft brush to remove debris without damaging internal components.
- Calibration: Annual calibration of input channels using a BENTLY-certified vibration calibrator to ensure measurement accuracy, applying known vibration levels and verifying output signals against standards.
- Firmware Updates: Periodically update the module’s firmware via BENTLY’s software to access new diagnostic features and compatibility improvements, particularly when integrating with newer system versions.
- System Testing: Biannual functional tests of alarm relays and communication protocols to ensure compliance with safety standards, simulating vibration conditions to verify alarm triggers and data transmission reliability.
Product Warranty
Our company provides a one-year quality warranty for the BENTLY 3701/55 323174-01, covering hardware failures due to non-human factors. During the warranty period, we will replace any module that exhibits abnormal signal processing or functional defects. For discontinued models like the BENTLY 3701/55 323174-01, our global inventory of legacy industrial parts ensures rapid fulfillment of urgent orders. We also offer post-warranty technical support, including calibration services and repair solutions, to help maintain your equipment’s reliability throughout its lifecycle.
Contact Information:
Whatsapp: +86 18859254943
E-mail: sales@ygplc.com
Whatsapp: +86 18859254943
E-mail: sales@ygplc.com
Note: This document is based on technical data derived from BENTLY’s official specifications and industry applications. For detailed installation guidelines, refer to the BENTLY 3701/55 323174-01 user manual or contact our technical support team for personalized assistance.
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