Description
Bently Nevada 133835-02 (3500/61) Temperature Monitor Module Product Introduction
Product Overview
The Bently Nevada 133835-02 is the upgraded high-performance hardware revision of the 3500/61 Temperature Monitor Module, serving as the core temperature processing and protection logic unit of the 3500 Machinery Protection System. Optimized and iterated on the basis of the classic 133835-01 version, this module matches perfectly with 133819-02 temperature I/O modules to process RTD and TC temperature signals collected from field sensors. It undertakes core functions including precise temperature data analysis, multi-point temperature differential calculation, programmable alarm/trip threshold judgment and safety interlock output.
Fully compliant with API 670 international machinery safety standards and upgraded industrial EMC anti-interference specifications, the 133835-02 revision optimizes signal processing algorithms, reduces long-term operation drift, improves temperature resolution and enhances loop fault identification capability. Supporting 6-channel multi-point synchronous temperature monitoring, it realizes full-coverage temperature condition tracking and over-temperature protection for bearing metal, casing and key process positions of turbines, compressors and other core rotating equipment. As the latest mainstream upgraded version of 3500 system temperature protection functional module, it is widely used in high-standard new industrial projects and old system temperature loop upgrading and renovation in thermal power, petrochemical and natural gas industries.
133835-02
Core Technical Parameters
| Parameter Item | Technical Specifications |
| Official Part Number | 133835-02 (Upgraded 3500/60 Temperature Monitor Revision) |
| Product Type | 3500/61 Multi-Channel Temperature Monitoring & Safety Protection Module |
| Core Function | 6-channel synchronous temperature data analysis, temperature difference monitoring, programmable graded alarm/trip logic, full-loop fault diagnosis and trend data recording |
| Compatible Input Signals | Processed RTD (PT100) and multi-type TC thermocouple signals transmitted by 133819 series temperature I/O modules |
| Monitoring Channels | 6 independent high-precision temperature monitoring channels, supporting multi-point simultaneous measurement |
| Measurement Accuracy | Upgraded high resolution, ultra-low long-term drift, accurate temperature difference calculation capability |
| Isolation Performance | Enhanced channel-to-channel electrical isolation, 250 Vdc isolation rating, effective anti-signal crosstalk |
| Safety Logic | Support TMR redundant configuration, multi-level graded alarm and trip, anti-false-trip intelligent judgment mechanism |
| System Compatibility | 100% backward compatible with 133835-01 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/loop fault identification, internal circuit self-test, detailed fault code and event log output |
Main Product Features
3.1 Upgraded High-Resolution Temperature Processing
Compared with the traditional 133835-01 version, the 133835-02 module adopts optimized digital filtering and temperature compensation algorithms, significantly improving temperature measurement resolution and data stability. It effectively suppresses long-term drift and subtle data jitter during continuous operation, accurately captures tiny temperature changes of equipment bearings and casings, and provides higher-precision data support for equipment overheating early warning and fault prediction.
3.2 Multi-Point Synchronous Monitoring & Temperature Difference Analysis
Supporting 6-channel independent synchronous temperature monitoring, the module can realize multi-point temperature collection and temperature differential calculation of key equipment positions. It can effectively identify abnormal temperature deviation and local overheating faults that cannot be detected by single-point monitoring, realizing comprehensive evaluation of equipment thermal state and greatly improving the comprehensiveness and accuracy of temperature protection judgment.
3.3 Reinforced Anti-Interference & Isolation Performance
The upgraded revision strengthens channel isolation and electromagnetic shielding design, with a 250 Vdc channel-to-channel isolation rating. It thoroughly eliminates signal crosstalk and common-mode interference between different temperature measuring points, maintains stable and reliable logic judgment in high-electromagnetic-interference industrial environments, and completely avoids false alarms and missed alarms caused by signal interference.
3.4 Optimized Intelligent Safety Protection Logic
The 133835-02 upgrades the anti-false-trip protection mechanism and TMR redundant matching performance. It supports flexible configuration of multi-stage temperature alarm and trip thresholds, and intelligently distinguishes normal temperature fluctuation and dangerous overheating faults. It adapts to complex variable-load operating conditions of rotating equipment, ensuring both the safety of equipment protection and the stability of unit continuous operation.
3.5 Comprehensive Full-Loop Fault Diagnosis Upgrade
On the basis of basic fault detection, the module adds subtle fault identification logic for temperature loop aging, signal attenuation and line virtual connection. It can record fault occurrence trends and output detailed classification fault codes, helping maintenance personnel accurately locate hidden faults in the temperature monitoring loop, realize predictive maintenance, and effectively reduce sudden equipment shutdown risks caused by monitoring loop failure.
3.6 Full Compatibility & Low Lifecycle Maintenance Cost
The 133835-02 is fully pin-to-pin and protocol compatible with 133835-01 old version and all standard 3500 system hardware, supporting zero-modification plug-and-play replacement. With upgraded industrial-grade components and optimized circuit layout, it features lower failure rate and longer service life, reducing daily debugging frequency and long-term spare part replacement costs, and is the optimal upgraded module for 3500 system temperature protection loop renovation.
Specific Application Scenarios
The Bently Nevada 133835-02 upgraded temperature monitor module is dedicated to high-reliability and high-precision temperature safety protection of core rotating machinery in heavy industries, forming a complete closed-loop temperature monitoring system with 133819-02 temperature I/O modules.
Typical Industrial Application Scenarios:
• High-End Thermal Power Units: Multi-point temperature monitoring and over-temperature protection for steam turbine and generator thrust bearings, radial bearings and casings to ensure unit safe operation.
• Petrochemical Large Compressor Units: Real-time temperature tracking and abnormal temperature difference early warning for centrifugal compressors and reaction process equipment to prevent mechanical thermal damage.
• Natural Gas & Energy Transmission Projects: Adapt to harsh outdoor and high-interference factory environments, providing stable temperature safety interlock protection for gas transmission compressors.
• Old System Performance Upgrade: Special upgrade replacement for aging 133835-01 modules to improve system anti-interference ability, measurement accuracy and fault diagnosis level.
• High-Safety Redundant Monitoring System: Suitable for TMR safety level projects, realizing high-reliability multi-parameter temperature comprehensive protection of key equipment.
133835-02
Supporting Components
The 133835-02 temperature monitor module forms a complete high-precision and high-stability industrial temperature protection system with standard 3500 series supporting hardware:
• 3500/05 System Rack: Standard system chassis, providing stable mechanical installation and backplane bus communication support.
• 3500/15 Redundant Power Supply: Dual redundant power supply to ensure uninterrupted operation of temperature protection loop.
• 3500/22 Transient Data Interface: Realizing remote configuration, temperature trend data upload and upper monitoring 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 equipment key point temperature signal collection.
• Multi-Shielded Temperature Signal Cables: Anti-interference dedicated cables to ensure stable transmission of weak temperature signals in complex electromagnetic environments.
Related Series Models & Version Iteration
The 133835-02 is the latest upgraded enhanced revision of the 3500/60 temperature monitor module, with clear iterative upgrading and functional matching relationships with other system modules:
• 133835-02 (Upgraded Enhanced Version): New-generation mainstream version with higher precision, stronger anti-interference and comprehensive fault diagnosis, suitable for high-standard industrial projects and system upgrades.
• 133835-01 (Classic Standard Version): Early basic version with general anti-interference and ordinary diagnosis capability, gradually replaced by 02 version in high-reliability scenarios.
• 133819-02 Temperature I/O Module: Upgraded front-end acquisition module, forming a high-precision full temperature monitoring closed loop with 133835-02.
• 133827-01 Universal I/O Module: General multi-signal module, unable to meet high-precision professional temperature protection requirements compared with dedicated temperature loop modules.
• 3500 Vibration & Speed Series Modules: Cooperate with temperature monitor module to realize multi-parameter joint condition monitoring and composite fault diagnosis of rotating machinery.
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