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BENTLY 3500/20 125744-01 Product Specification
Product Overview
The BENTLY 3500/20 125744-01 is a high-performance dual-channel proximitor module designed for BENTLY’s 3500 Series Machinery Protection System. Engineered to monitor shaft displacement and vibration in rotating equipment, this module serves as a critical component in industrial automation systems across industries such as oil and gas, power generation, and manufacturing. The BENTLY 3500/20 125744-01 processes signals from proximity probes, converting analog inputs into digital data for real-time analysis of machinery health, enabling early detection of anomalies like misalignment or bearing wear.
As part of the 3500 Series, the BENTLY 3500/20 125744-01 integrates seamlessly with other system modules (e.g., power supplies, communication gateways) to form a comprehensive machinery protection solution. Its dual-channel design supports simultaneous monitoring of two critical points, while the software-configurable interface allows users to customize alarm thresholds and filter settings. The module’s rugged IP23-rated enclosure and conformal-coated PCBs ensure reliable operation in harsh environments, while its compact form factor (210 mm × 150 mm × 100 mm) and 2 kg weight facilitate easy installation in 19″ control racks.
In automation architectures, the BENTLY 3500/20 125744-01 acts as a frontline diagnostic tool, providing real-time data on shaft position and vibration amplitude. Its high-frequency response (0–10 kHz) ensures accurate capture of dynamic movements, while the RS-485 communication interface enables seamless integration with PLCs and HMIs. By delivering precise machinery health insights, the module helps minimize downtime, extend equipment lifespan, and enhance operational safety in mission-critical applications.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | BENTLY 3500/20 125744-01 |
| Manufacturer | BENTLY NEVADA |
| Product Type | Dual-Channel Proximitor Module |
| Input Channels | 2 channels (proximity probes) |
| Frequency Range | 0–10 kHz |
| Input Signal Range | 0–10 VDC (proximity probe output) |
| Communication Interface | RS-485 (Modbus RTU compatible) |
| Power Supply | 24 VDC ±10% |
| Physical Dimensions | 210 mm (W) × 150 mm (H) × 100 mm (D) |
| Weight | 2 kg |
| Operating Temperature | -25°C to +60°C |
| Humidity | 5–95% non-condensing |
| Certifications | CE, UL, ISO 10816 |
Main Features and Advantages
Dual-Channel Monitoring: The BENTLY 3500/20 125744-01 supports simultaneous monitoring of two proximity probes, enabling comprehensive analysis of shaft displacement and vibration across multiple axes. This feature is ideal for complex machinery like turbines, where multi-point data collection is essential for accurate fault diagnosis.
Software-Configurable Flexibility: Users can tailor the module’s settings via BENTLY’s proprietary software, adjusting alarm thresholds, filter types (low-pass/band-pass), and data sampling rates to match specific machinery requirements. This flexibility reduces hardware modification needs, streamlining system deployment in diverse industrial setups.
Rugged Industrial Design: Constructed with an IP23-rated metal enclosure and anti-vibration mounting, 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.
Real-Time Data Integration: The RS-485 interface enables real-time transmission of displacement and vibration data to higher-level control systems, supporting remote monitoring and predictive maintenance. Engineers can access live diagnostics via SCADA platforms, enabling proactive intervention before equipment failures occur.
Modular System Compatibility: As part of the 3500 Series, the BENTLY 3500/20 125744-01 integrates seamlessly with other modules (e.g., power supplies, vibration monitors), forming a cohesive protection system. This modularity allows for easy expansion as operational needs evolve.
Application Areas
The BENTLY 3500/20 125744-01 is widely deployed in industries where precise machinery monitoring is critical:
-
Oil and Gas:
- Monitors compressor shafts in refineries and pipeline pumping stations, detecting early signs of cavitation or bearing wear to prevent unplanned shutdowns.
- Integrates with emergency shutdown systems (ESD) in offshore platforms, ensuring safety during extreme operational conditions.
-
Power Generation:
- Analyzes vibration in steam turbines and generators to optimize performance and prevent stator-rotor contact in power plants.
- Supports condition-based maintenance by providing real-time data on rotor dynamics, 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).
-
Water/Wastewater Treatment:
- Ensures reliable operation of centrifugal pumps by detecting imbalance or misalignment, maintaining consistent water flow in treatment facilities.
- Integrates with SCADA systems for remote monitoring of distributed pump stations, enabling proactive maintenance scheduling.
Related Products
- BENTLY 3500/22M 146031-01: A 4-channel vibration monitoring module, offering higher channel density for complex setups, often used as an upgrade from the BENTLY 3500/20 125744-01.
- BENTLY 3500/15 125840-02: A power input module that supplies stable 24 VDC to the BENTLY 3500/20 125744-01 and other 3500 Series components, ensuring uninterrupted operation.
- BENTLY 3500/32 129407-01: A speed/torque monitor that pairs with the BENTLY 3500/20 125744-01 to correlate vibration data with rotational speed, aiding in fault isolation.
- BENTLY 3500/42 129408-01: A temperature monitor module that complements vibration data by analyzing thermal performance, providing a comprehensive view of machinery health.
- BENTLY 3500/92 129410-01: A communication gateway that enables the BENTLY 3500/20 125744-01 to interface with Ethernet/IP networks, supporting remote diagnostics.
Installation and Maintenance
Pre-installation Preparation:
Before installing the BENTLY 3500/20 125744-01, ensure the following:
Before installing the BENTLY 3500/20 125744-01, 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.
- Use BENTLY’s configuration software to define input channel parameters (probe type, range) 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 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.
- Calibration: Annual calibration of input channels using a BENTLY-certified vibration calibrator to ensure measurement accuracy, applying known displacement values and verifying output signals.
- Firmware Updates: Periodically update the module’s firmware via BENTLY’s software to access new diagnostic features and compatibility improvements 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 trigger responses.
Product Warranty
Our company provides a one-year quality warranty for the BENTLY 3500/20 125744-01, 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 3500/20 125744-01, 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 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 3500/20 125744-01 user manual or contact our technical support team for personalized assistance.
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