Description
1. Product Overview
BENTLY 137110-01 is a high-precision temperature monitoring module engineered by Bently Nevada (a Baker Hughes company), exclusively designed for the 3500 machinery health monitoring system to track critical temperature parameters of rotating equipment, bearings, and process components. As a specialized sensing module, BENTLY 137110-01 supports multiple temperature sensor types and delivers accurate, real-time data to detect overheating—a leading cause of machinery failure. In power plant steam turbine systems, BENTLY 137110-01 monitors bearing and lube oil temperatures to prevent lubrication breakdown; in refinery compressor stations, BENTLY 137110-01 tracks motor winding temperatures to avoid insulation damage and premature failure. Additionally, BENTLY 137110-01 integrates seamlessly with other 3500 modules (e.g., vibration, speed) to provide a holistic view of machinery health, enabling predictive maintenance and reducing unplanned downtime.
2. Product Parameters
2.1 Core Monitoring Specifications
- Supported Sensors: PT100/PT1000 RTDs (2/3/4-wire), Type K/J/T/E thermocouples, thermistors
- Temperature Range: -200°C to +850°C (thermocouples), -200°C to +400°C (RTDs)
- Measurement Accuracy: ±0.1°C (RTDs, 0°C to +100°C), ±1°C (thermocouples, 0°C to +500°C)
- Input Channels: 8 independent channels (configurable per sensor type)
- Response Time: ≤200 ms (90% of step change)
2.2 Electrical Parameters
- Power Supply: 24 VDC ±10% (powered via 3500 rack backplane)
- Power Consumption: ≤12 W (full channel load)
- Output Signals: 4–20 mA (analog per channel), Modbus TCP/IP (digital), relay contacts (alarm/trip)
- Isolation: 2500 VAC between input/output and backplane; 1500 VAC between channels
- Sensor Excitation: 2.5 mA (RTDs), cold junction compensation (thermocouples)
2.3 Environmental & Mechanical Parameters
- Operating Temperature: -40°C to +85°C
- Storage Temperature: -55°C to +100°C
- Relative Humidity: 5%–95% (non-condensing, MIL-STD-810G compliant)
- Protection Rating: IP20 (rack-mounted); IP65 optional with rugged enclosure
- Mounting: Bently 3500 series chassis (1-slot width, 3U height)
- Dimensions: 165 mm × 120 mm × 45 mm (L×W×H)
- Weight: ~0.7 kg
2.4 Certification & Compatibility
- Certifications: ATEX II 2G Ex ib IIC T4, IECEx, UL 508, SIL 2 (IEC 61508)
- Compatible Systems: Bently 3500/22M, 3500/40M, 3500/60M racks; Siemens PCS 7, Honeywell Experion, Allen-Bradley ControlLogix DCS
- Software Compatibility: Bently System 1®, Predix APM
3. Advantages & Features
- Multi-Sensor Compatibility: BENTLY 137110-01 supports RTDs, thermocouples, and thermistors, eliminating the need for multiple temperature modules and reducing 3500 rack space requirements by up to 50%.
- Ultra-High Accuracy: With ±0.1°C precision for RTDs (in core temperature ranges), BENTLY 137110-01 detects subtle temperature rises that signal early-stage component degradation (e.g., bearing wear, insulation aging).
- Configurable Alarm Logic: Users can set custom warning/trip thresholds for each channel via System 1® software, allowing BENTLY 137110-01 to adapt to specific machinery requirements (e.g., high-temperature turbines vs. low-temperature pumps).
- Cold Junction Compensation: Built-in precision cold junction compensation ensures accurate thermocouple measurements, even in fluctuating ambient temperatures—critical for outdoor or variable-environment installations.
- Robust Environmental Performance: Rated for -40°C to +85°C operation and compliant with MIL-STD-810G for shock/vibration, BENTLY 137110-01 performs reliably in harsh industrial environments like offshore platforms and desert power plants.
4. Application Fields & Cases
4.1 Application Fields
- Power Generation: Steam/gas turbine bearing temperature monitoring, generator stator winding temperature tracking, lube oil system temperature sensing
- Oil & Gas: Compressor motor winding temperature monitoring, pipeline pump bearing temperature detection, LNG plant cryogenic equipment temperature tracking
- Petrochemical: Refinery reactor jacket temperature monitoring, extruder barrel temperature sensing, chemical storage tank temperature control
- Manufacturing: Steel mill furnace temperature monitoring, paper mill dryer cylinder temperature tracking, cement plant kiln inlet temperature sensing
4.2 Typical Cases
- Gas Turbine Bearing Temperature Monitoring: A 500 MW combined-cycle power plant deployed BENTLY 137110-01 to monitor turbine bearing temperatures. The module detected a 3°C temperature rise in one bearing (caused by lubrication leakage) 48 hours before critical failure, enabling scheduled maintenance and avoiding a $2 million unplanned shutdown.
- Offshore Compressor Motor Protection: An offshore natural gas platform used BENTLY 137110-01 to track compressor motor winding temperatures. When the module detected an abnormal temperature spike (indicating insulation damage), it triggered an automatic shutdown, preventing a motor fire and ensuring continuous gas production.
- Refinery Reactor Temperature Control: A petrochemical refinery integrated BENTLY 137110-01 into its reactor system to monitor jacket and internal temperatures. The module’s high accuracy enabled precise process control, reducing product waste by 15% and extending reactor lifespan by 3 years.
5. Competitor Comparison
| Parameter | BENTLY 137110-01 | Competitor X Temperature Module |
|---|---|---|
| RTD Accuracy (0°C–100°C) | ±0.1°C | ±0.5°C |
| Channel Count | 8 channels | 4 channels |
| Sensor Compatibility | RTDs, thermocouples, thermistors | RTDs only |
| Operating Temperature | -40°C to +85°C | -20°C to +70°C |
| SIL Certification | SIL 2 | SIL 1 |
| MTBF (Mean Time Between Failures) | ≥350,000 hours | ≥180,000 hours |
6. Selection Suggestions & Precautions
6.1 Selection Suggestions
- Sensor Type Matching: BENTLY 137110-01 is ideal for mixed sensor environments (RTDs + thermocouples); for RTD-only applications, select Bently 137110-02 (cost-optimized single-sensor module).
- Temperature Range Needs: Choose thermocouple-compatible configurations for high-temperature applications (≥400°C); select RTD-focused versions for precision low-temperature monitoring (≤200°C).
- Environment & Safety: Opt for ATEX/IECEx-certified units for explosive zones (e.g., refineries, chemical plants); select IP65 enclosures for outdoor or dusty installations (e.g., mining facilities).
6.2 Precautions
- Sensor Wiring: Use twisted-pair, shielded cables for thermocouples (type-specific insulation) and 4-wire wiring for high-precision RTD measurements; ground shielding at the module end only to eliminate ground loops.
- Calibration Requirements: Calibrate BENTLY 137110-01 annually using a precision temperature calibrator (e.g., Fluke 9142); verify cold junction compensation accuracy in varying ambient temperatures.
- Maintenance Checks: Inspect sensor connections and terminal blocks every 6 months for corrosion or loose wiring; replace aging thermocouple cables (≥5 years old) to prevent signal degradation.
- Installation Guidelines: Mount BENTLY 137110-01 in the 3500 chassis with at least 5 cm clearance from power modules to avoid heat interference; avoid installation near direct heat sources (e.g., heaters, exhaust vents).
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