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BENTLY 3500/40M 125680-01 Product Specification
Product Overview
The BENTLY 3500/40M 125680-01 is a high-precision quad-channel temperature monitoring module designed for BENTLY’s 3500 Series Machinery Protection System. Engineered to deliver real-time temperature analysis for critical industrial equipment, this module serves as a cornerstone in predictive maintenance strategies across industries such as oil and gas, power generation, and manufacturing. The BENTLY 3500/40M 125680-01 supports up to 4 channels of temperature input, enabling continuous monitoring of bearing temperatures, winding temperatures, and other critical points in turbines, compressors, and generators. As part of the 3500 Series, it integrates seamlessly with other system modules to form a comprehensive machinery health management solution.
Featuring advanced signal conditioning and diagnostic capabilities, the BENTLY 3500/40M 125680-01 processes inputs from RTDs (resistance temperature detectors) and thermocouples, converting analog signals into digital data for real-time analysis. 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 kg weight facilitate easy installation in 19″ control racks.
In automation architectures, the BENTLY 3500/40M 125680-01 acts as a critical diagnostic tool, detecting early signs of overheating in machinery components. Its high-resolution analog-to-digital conversion (16-bit) ensures precise temperature measurements, while the RS-485 communication interface enables seamless integration with PLCs, HMIs, and supervisory control systems. By delivering reliable temperature data, the module helps prevent equipment failures, minimize downtime, and extend the lifespan of high-value industrial assets.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | BENTLY 3500/40M 125680-01 |
| Manufacturer | BENTLY NEVADA |
| Product Type | Quad-Channel Temperature Monitoring Module |
| Input Channels | 4 channels (RTD/thermocouple compatible) |
| Temperature Range | -200°C to +650°C (depending on sensor type) |
| Accuracy | ±0.1% of full scale |
| Communication Interface | RS-485 (Modbus RTU compatible) |
| Power Supply | 24 VDC ±10% |
| Physical Dimensions | 210 mm (W) × 150 mm (H) × 100 mm (D) |
| Weight | 2.1 kg |
| Operating Temperature | -25°C to +60°C |
| Humidity | 5–95% non-condensing |
| Certifications | CE, UL, ISO 10816 |
Main Features and Advantages
Quad-Channel Temperature Monitoring: The BENTLY 3500/40M 125680-01 supports simultaneous monitoring of four temperature points, enabling comprehensive analysis of thermal patterns in complex machinery setups. This feature is ideal for multi-stage turbines and compressors, where multi-point temperature data is essential for accurate fault diagnosis.
Universal Sensor Compatibility: The module accepts both RTDs (e.g., Pt100) and thermocouples (e.g., J, K, T types), eliminating the need for dedicated modules and reducing inventory costs. Its auto-ranging input ensures seamless integration with diverse sensor types without hardware modifications.
Advanced Diagnostic Capabilities: Built-in self-test functions monitor channel health, power supply stability, and thermal conditions, providing real-time feedback via front-panel LEDs and remote HMI interfaces. The module stores diagnostic logs for post-fault analysis, enabling proactive maintenance and reducing mean time to repair (MTTR).
Rugged Industrial Design: Constructed with an IP23-rated metal enclosure and anti-vibration mounting brackets, the BENTLY 3500/40M 125680-01 withstands harsh environments, including high temperatures, humidity, and mechanical stress. Its self-shielded design minimizes electromagnetic interference, ensuring reliable measurements in dense industrial installations.
Modular System Integration: As part of the 3500 Series, the module integrates seamlessly with other 3500 components (e.g., vibration monitors, power supplies), forming a cohesive machinery protection system. This modularity allows for easy expansion as operational needs evolve, from small-scale setups to large industrial complexes.
Application Areas
The BENTLY 3500/40M 125680-01 is widely deployed in industries where precise temperature monitoring is critical to operational reliability:
-
Power Generation:
- Monitors turbine bearing and winding temperatures in power plants, enabling early detection of overheating and preventing stator-rotor contact.
- Supports condition-based maintenance programs by providing real-time thermal data for generators, optimizing scheduled repairs to minimize downtime.
-
Oil and Gas:
- Controls compressor temperatures in refineries and pipeline networks, detecting early signs of thermal stress or lubrication failure.
- Integrates with emergency shutdown systems (ESD) in offshore platforms, ensuring safety during extreme operational conditions.
-
Manufacturing:
- Monitors oven and process temperatures in semiconductor and pharmaceutical manufacturing, where precise thermal control is critical for product quality and compliance.
- Controls motor temperatures in high-speed packaging machinery, reducing production losses due to unexpected equipment failures.
-
Water/Wastewater Treatment:
- Ensures reliable operation of centrifugal pumps by monitoring motor temperatures, 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 3500/42M 129408-01: A dual-channel temperature monitor, suitable for smaller setups, often used as a cost-effective alternative to the BENTLY 3500/40M 125680-01.
- BENTLY 3500/15 125840-02: A power input module that supplies stable 24 VDC to the BENTLY 3500/40M 125680-01 and other 3500 Series components, ensuring uninterrupted operation.
- BENTLY 3500/22M 146031-01: A vibration monitoring module that pairs with the BENTLY 3500/40M 125680-01 to provide comprehensive machinery health data, combining vibration and temperature analysis.
- BENTLY 3500/92 129410-01: A communication gateway that enables the BENTLY 3500/40M 125680-01 to interface with Ethernet/IP networks, supporting remote thermal diagnostics via cloud-based platforms.
- BENTLY 3500/95 129411-01: A redundant power supply module that ensures continuous operation of the BENTLY 3500/40M 125680-01 in mission-critical applications.
Installation and Maintenance
Pre-installation Preparation:
Before installing the BENTLY 3500/40M 125680-01, ensure the following:
Before installing the BENTLY 3500/40M 125680-01, 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 (RTD or thermocouple) 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 certified temperature source to ensure measurement accuracy. This involves applying known temperatures 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, especially when integrating with newer system versions.
- Sensor Health Checks: Biannual verification of connected temperature sensors (RTDs/thermocouples) using a multimeter to ensure they fall within specified resistance or voltage ranges.
Product Warranty
Our company provides a one-year quality warranty for the BENTLY 3500/40M 125680-01, covering hardware failures due to non-human factors. During the warranty period, we will replace any module that exhibits abnormal temperature reading or functional defects. For discontinued models like the BENTLY 3500/40M 125680-01, our global inventory of legacy industrial parts ensures rapid fulfillment of urgent orders. We also offer post-warranty technical support and repair services 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 3500/40M 125680-01 user manual or contact our technical support team for personalized assistance.
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