Description
Bently Nevada 133827-02 (3500/61) Temperature Monitor Module Product Introduction
Product Overview
The Bently Nevada 133827-02 is the upgraded high-performance hardware revision of the 3500/61 Temperature Monitor Module, a dedicated multi-channel temperature monitoring card designed exclusively for the 3500 Machinery Protection System. As an upgraded iteration of the classic 133827-01 version, this module features identical core temperature acquisition and protection logic as the 3500/60 series, while adding independent analog recorder output functions for field data recording and secondary system docking. It perfectly matches 133819 series RTD/TC temperature I/O modules to process field temperature signals, realizing real-time temperature measurement, differential calculation, programmable alarm/trip judgment and analog signal retransmission.
Fully compliant with API 670 international machinery safety standards and upgraded industrial EMC specifications, the 133827-02 revision optimizes internal signal conversion circuits, lowers long-term operating temperature drift, improves analog output linearity and enhances full-loop fault diagnosis accuracy. Supporting 6-channel synchronous high-precision temperature monitoring, it is widely applied for bearing metal temperature, casing temperature and key process temperature tracking of turbines, compressors and other core rotating equipment. The unique recorder output design makes it the preferred module for projects requiring both machinery protection and on-site temperature data recording, serving high-standard new construction and legacy system upgrade renovation in thermal power, petrochemical and natural gas industries.
133827-02
Core Technical Parameters
| Parameter Item | Technical Specifications |
| Official Part Number | 133827-02 (Upgraded 3500/61 Temperature Monitor Revision) |
| Product Type | 3500/61 Multi-Channel Temperature Monitoring & Recorder Output Module |
| Core Function | 6-channel synchronous temperature monitoring, temperature differential calculation, programmable alarm/trip logic, analog recorder output, full-loop fault diagnosis and trend recording |
| Compatible Input Signals | Processed RTD (PT100) and multi-standard TC thermocouple signals from 133819 series temperature I/O modules |
| Monitoring Channels | 6 independent high-precision temperature measurement channels |
| Unique Feature | Built-in analog recorder output interface for temperature data retransmission and field recording |
| Measurement Accuracy | ±0.1°C high precision at ambient temperature, ultra-low long-term operation drift |
| Resolution | 0.01°C high-resolution temperature data collection |
| Isolation Performance | Enhanced channel-to-channel electrical isolation, effective suppression of signal crosstalk and interference |
| Safety Logic | Supports multi-level graded alarm/trip and TMR redundant safety configuration |
| System Compatibility | 100% backward compatible with 133827-01 and all standard 3500 rack systems, plug-and-play replacement |
| Configuration Method | Full parameter programmable via official Bently Nevada 3500 configuration software |
| Operating Temperature | -25℃ ~ +65℃ extended wide-temperature operating range |
| Humidity Range | 5%~95% RH, non-condensing, adaptable to harsh industrial environments |
| Industrial Compliance | API 670 certified, upgraded EMC anti-interference standard, industrial safety protection grade qualified |
| Diagnostic Function | Full-loop signal abnormality diagnosis, sensor/line fault identification, internal circuit self-test and detailed fault code output |
Main Product Features
3.1 Unique Recorder Output Function (Core Differentiation from 3500/60)
The most prominent advantage of the 133827-02 (3500/61) module over the 3500/60 series is the built-in independent analog recorder output interface. While completing standard temperature monitoring and safety protection functions, it can stably output analog temperature signals to support on-site recording instruments, DCS and auxiliary monitoring systems, realizing dual functions of machinery safety protection and process data recording. It solves the problem of separate configuration of signal retransmission modules in traditional temperature monitoring loops, simplifying system design and on-site wiring.
3.2 Upgraded High-Precision Temperature Measurement
Optimized on the basis of 133827-01 basic version, the 02 revision adopts upgraded signal sampling chips and temperature drift compensation algorithms. It achieves 0.01°C ultra-high measurement resolution and ±0.1°C high-precision static accuracy, effectively capturing tiny temperature fluctuations of equipment bearings and casings. It greatly reduces data drift and jitter during long-term continuous operation, providing accurate and stable temperature data for equipment fault early warning and process condition analysis.
3.3 6-Channel Synchronous Multi-Point & Differential Monitoring
Supporting six fully independent temperature monitoring channels, the module realizes simultaneous collection and real-time differential calculation of multi-point temperature data of key equipment. It can accurately identify local overheating and abnormal temperature deviation faults that cannot be detected by single-point monitoring, comprehensively evaluating the thermal operation state of rotating machinery, and improving the comprehensiveness and reliability of equipment temperature protection judgment.
3.4 Reinforced Anti-Interference & Environmental Adaptability
The upgraded module strengthens internal electromagnetic shielding and multi-stage filtering design, effectively suppressing on-site power frequency interference, high-frequency clutter and signal crosstalk between channels. The extended wide-temperature operating range adapts to harsh industrial environments such as high temperature, low temperature and high humidity, maintaining stable measurement accuracy and signal output consistency in complex working conditions, avoiding false alarms and data distortion.
3.5 Comprehensive Full-Loop Intelligent Fault Diagnosis
It integrates full-link fault diagnosis logic covering front-end temperature sensors, signal cables, matching I/O modules and internal circuits. It can accurately detect common faults such as sensor disconnection, short circuit, signal attenuation and line virtual connection, and identify subtle aging faults of the monitoring loop. Detailed fault codes and event logs are output to help maintenance personnel quickly locate faults and realize predictive maintenance, ensuring the integrity of the temperature protection system.
3.6 Zero-Modification Plug-and-Play Upgrade & Low Maintenance Cost
The 133827-02 is fully pin-to-pin and protocol compatible with the old 133827-01 version and all standard 3500 system hardware, supporting direct replacement without modifying wiring, configuration and program logic. Adopting upgraded industrial-grade components, it features lower failure rate and longer service life, reducing daily debugging frequency and long-term spare part costs, and is the optimal upgraded module for temperature monitoring loops requiring data retransmission and recording functions.
Specific Application Scenarios
The Bently Nevada 133827-02 (3500/61) upgraded temperature monitor module is specially used for high-precision temperature safety protection and process data recording of core rotating machinery, suitable for industrial scenarios requiring both protection interlock and analog signal retransmission.
Typical Industrial Application Scenarios:
• Thermal Power Generation Units: Multi-point temperature monitoring and over-temperature protection for steam turbine and generator bearings and casings, with analog temperature output for unit process data recording.
• Petrochemical Compressor Units: Real-time temperature tracking and differential early warning for large centrifugal compressors and reaction equipment, docking with factory DCS system for data centralized monitoring.
• Natural Gas Energy Transmission Projects: Harsh environment-adaptive temperature safety protection and data retransmission for gas transmission compressors and auxiliary energy equipment.
• On-Site Data Recording Scenarios: Special application for projects requiring temperature signal recorder output, replacing traditional separate signal retransmission modules to simplify system structure.
• Old System Performance Upgrade: Upgraded replacement for aging 133827-01 modules to improve measurement accuracy, anti-interference performance and fault diagnosis capability.
Supporting Components
The 133827-02 temperature monitor module forms a complete high-reliability temperature monitoring and data transmission system with standard 3500 series supporting hardware:
• 3500/05 System Rack: Standard chassis providing stable mechanical installation and backplane bus communication.
• 3500/15 Redundant Power Supply: Dual redundant power supply to ensure uninterrupted operation of temperature protection and data output loop.
• 3500/22 Transient Data Interface: Realizing remote configuration, temperature trend data upload and upper platform docking.
• 133819-02 Upgraded Temperature I/O Module: Matching front-end high-precision RTD/TC signal acquisition and isolation conversion module.
• PT100 RTD / Multi-Standard TC Sensors: Field high-precision temperature measuring elements for key equipment point signal collection.
• Multi-Shielded Temperature Signal Cables: Anti-interference dedicated cables to ensure stable transmission of weak temperature signals.
Related Series Models & Version Iteration
The 133827-02 is the latest upgraded enhanced revision of the 3500/61 temperature monitor module, with clear functional differentiation and iterative relationships with other temperature series modules:
• 133827-02 (3500/61 Upgraded Version): New-generation mainstream version with recorder output, higher precision and stronger anti-interference, suitable for projects requiring protection + data recording dual functions.
• 133827-01 (3500/61 Classic Version): Early basic version with ordinary accuracy and anti-interference, gradually replaced by 02 version in high-standard projects.
• 133835-02 (3500/60 Module): Pure temperature protection module without analog recorder output, only for safety interlock protection, no process data retransmission function.
• 133819-02 Temperature I/O Module: Upgraded front-end signal acquisition module, forming a high-precision closed-loop temperature monitoring system with 133827-02.
• 3500 Vibration & Speed Series Modules: Cooperate with 3500/61 module to realize multi-parameter joint condition monitoring and composite fault diagnosis of rotating machinery.
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