Description
3500 Series Module Technical Introduction (3500/61 & 3500/62)

350062 163179-03
3500/61 Temperature Monitor Module (3500/61 + 133900-01 / 133843-02)
1.1 Product Overview & Application Information
The 3500/61 is a high-performance six-channel temperature monitoring module developed for the Bently Nevada 3500 machinery protection system, dedicated to real-time temperature measurement, signal conditioning, alarm judgment and data recording of industrial rotating and stationary equipment. Compatibly equipped with 133900-01 recorder output external termination block (Euro style) and 133843-02 series supporting termination accessories, the module supports flexible field wiring and stable signal output, widely deployed in critical industrial condition monitoring scenarios.
As a core temperature monitoring unit of the 3500 rack system, it accepts both Resistance Temperature Detector (RTD) and Thermocouple (TC) sensor inputs. Different from the 3500/60 module, the 3500/61 integrates independent recorder output for each channel, enabling continuous temperature data recording, remote data transmission and on-site data backup. It is programmable via 3500 Rack Configuration Software to adapt to diversified temperature measurement demands, providing reliable over-temperature protection and condition diagnosis for industrial equipment.
1.2 Core Technical Parameters
1.2.1 Basic Performance Parameters
- Channel Configuration: 6 independent configurable measurement channels, supporting mixed access of RTD and TC signals
- Input Impedance: 10 MΩ per channel, ensuring strong anti-interference capability for weak sensor signals
- Power Consumption: Nominal 9W, low power operation to reduce system load and heat generation
- Measurement Accuracy: ±1℃/±1℉ full range; ambient deviation ±3℃ @25℃ for standard rack installation
- System Isolation: 500 Vdc system-level isolation; 250 Vdc channel-to-channel isolation (isolated I/O version)
- Resolution & Error: 0.3662 μA per bit, ±0.15% error at room temperature, ±0.4% full temperature range error
- Operation Mode: Supports single-channel independent configuration and triple modular redundant (TMR) voting operation for high-reliability scenarios
1.2.2 Sensor Measurement Range
- Platinum RTD (100Ω, α=0.00385): -200℃ ~ +850℃; -50℃ ~ +850℃ (with external barrier)
- Platinum RTD (100Ω, α=0.00392): -200℃ ~ +700℃
- Copper RTD (10Ω): -50℃ ~ +260℃
- Type T Thermocouple: -160℃ ~ +400℃
- Type E Thermocouple: -100℃ ~ +1000℃
1.2.3 Environmental & Mechanical Parameters
- Working Temperature: -40℃ ~ +85℃
- Storage Temperature: -50℃ ~ +100℃
- Dimension: 241.3mm × 24.4mm × 99.1mm
- Indicator Lights: OK (operation status), TX/RX (communication status), Bypass (bypass status)
1.3 Main Product Features
- Dual-Signal Compatibility: Integrates RTD and TC dual-measurement functions, supporting arbitrary configuration of single-channel signal type and mixed signal access, eliminating the need for multiple dedicated modules and reducing system integration cost
- Independent Recorder Output: Unique 6-channel independent recorder output (superior to 3500/60) realizes real-time continuous temperature data recording, facilitating equipment operation trend analysis, fault tracing and data archiving
- High-Isolation Anti-Interference Design: Optional TC isolated I/O version provides 250Vdc channel isolation, effectively isolating external electromagnetic interference and on-site fault voltage, ensuring stable measurement in harsh industrial electromagnetic environments
- TMR Redundant Protection: Supports TMR triple redundant configuration with dual voting mechanism, eliminates single-point system failure, meets high-reliability requirements of petrochemical, power and other key industrial scenarios
- Plug-and-Play & No Calibration: Full-scale range configurable via official configuration software, no on-site manual calibration required, realizing fast deployment and maintenance
- Complete Status Monitoring: Equipped with multi-functional LED indicators to display module operation, communication and bypass status in real time, facilitating on-site staff to quickly judge equipment faults
- Certified Industrial Adaptability: Supports CSA/NRTL/C, ATEX/IECEx industrial certifications, applicable to Class 1 Div 2 and Zone 2 hazardous industrial areas
1.4 Typical Application Scenarios
The 3500/61 module is widely used for temperature condition monitoring and safety protection of key rotating and thermal equipment in heavy industrial fields, covering the following core scenarios:
- Power Generation Industry: Bearing temperature monitoring of steam turbines, gas turbines, generators and wind power units; stator and rotor temperature detection of power equipment
- Petrochemical & Oil & Gas: Temperature monitoring of compressors, pumps, reactors and transmission equipment in hazardous explosive working conditions; over-temperature early warning for process equipment
- Metallurgy & Heavy Industry: Real-time temperature collection and protection of rolling mills, fans, blowers and high-temperature operating mechanical equipment
- Industrial Automatic Control: Multi-point temperature data acquisition, remote transmission and trend recording of production line core equipment, supporting intelligent operation and maintenance and predictive maintenance
- High-Reliability Safety Systems: TMR redundant monitoring for key equipment in ESD emergency shutdown systems to ensure safe and stable operation of industrial units
1.5 Supporting Components & Accessories
1.5.1 Core Matching Accessories
- 133900-01: 3500/61 Recorder Output External Termination Block (Euro style connector), dedicated to recorder output signal wiring, supporting standard European terminal wiring specifications, convenient for on-site wiring and fixed installation
- 133843-02: 3500/61 TC Isolated I/O External Termination Accessories, supporting isolated thermocouple signal external wiring, matching isolated module versions to ensure signal isolation and anti-interference performance
1.5.2 Other Supporting Accessories
- External Termination Blocks: 133908-01 (RTD/TC non-isolated terminal strip type), 133916-01 (RTD/TC non-isolated Euro type), 133924-01 (TC isolated terminal strip type
- Special Cables: 134544-AXXXX-BXX (transducer signal cable), 134543-AXXXX-BXX (recorder output cable), multiple optional lengths for on-site distance adaptation
- Internal Barrier Accessories: Supporting intrinsically safe barrier modules, applicable to explosion-proof hazardous area monitoring scenarios
1.6 Related Product Models & Differences
1.6.1 Main Derivative Models of 3500/61
- 3500/61-A01-BXX: RTD/TC non-isolated I/O module with internal termination, suitable for conventional non-interference industrial environments
- 3500/61-A02-BXX: RTD/TC non-isolated I/O module with external termination, convenient for later wiring maintenance and expansion
- 3500/61-A03-BXX: TC isolated I/O module with internal termination, for high electromagnetic interference scenarios
- 3500/61-A04-BXX: TC isolated I/O module with external termination, balancing anti-interference performance and maintenance convenience
- 3500/61-A05-BXX: Non-isolated module with internal barriers, applicable to basic explosion-proof monitoring scenarios
1.6.2 Similar Model Comparison
- 3500/60: Same temperature measurement function and channel parameters as 3500/61, without recorder output function, suitable for basic temperature monitoring scenarios without data recording requirements
- 3500/62: Process variable monitoring module, supporting 4-20mA/voltage signal input, mainly for process parameter monitoring, different from 3500/61 dedicated temperature measurement positioning
1.7 System Compatibility Requirements
To ensure stable operation of the 3500/61 module in the 3500 rack system, the system firmware and software need to meet the minimum version requirements: 3500/20 module firmware Rev.G; 3500/01/02 software V2.00; 3500/03 software V1.10 and above. The module supports seamless expansion of existing 3500 systems with strong backward compatibility.

350062 163179-03
3500/62 Process Variable Monitor Module (163179-03)
2.1 Product Overview & Application Information
The 3500/62 (163179-03) is a high-performance six-channel Process Variable (PV) monitoring module designed for the Bently Nevada 3500 machinery protection system. It is engineered to acquire, condition, and monitor standard industrial analog process signals, integrating field process parameters into machinery protection and diagnostic logic. As a critical complementary unit of the 3500 series monitoring rack, it bridges mechanical vibration/temperature monitoring with plant process data, enabling comprehensive equipment health assessment.
The 163179-03 is the standard part number version of the 3500/62 module, featuring universal analog input compatibility, programmable alarm thresholds, channel buffered output, and system-level isolation. It continuously compares real-time process variable values against user-configured setpoints to trigger alarms or protection interlocks, providing reliable process condition monitoring for rotating equipment and production units. Fully configurable via 3500 Rack Configuration Software, it supports flexible parameter setup to adapt to diverse industrial process monitoring demands.
2.2 Core Technical Parameters
2.2.1 Basic Performance Parameters
- Channel Configuration: 6 independent universal analog input channels, fully configurable for current or voltage signal types
- Input Signal Range: Standard 4–20 mA current input; -10 Vdc ~ +10 Vdc proportional voltage input
- Power Consumption: Nominal 7W, low power design to reduce rack system load and heat accumulation
- Measurement Accuracy: ±0.15% full scale at room temperature; ±0.4% full scale across entire operating temperature range
- System Isolation Rating: 500 Vdc system-level isolation, protecting module and rack from external transient voltage interference
- Channel Output: Independent buffered analog output per channel for external data recording and secondary monitoring
- Operation Mode: Supports single-channel independent monitoring and TMR triple modular redundant voting mode for high-safety industrial systems
- Update Rate: High-speed signal sampling and real-time data refresh to capture transient process fluctuations
2.2.2 Environmental & Mechanical Parameters
- Operating Temperature: -30℃ ~ +65℃
- Storage Temperature: -50℃ ~ +100℃
- Dimension: 241.3mm × 24.4mm × 99.1mm, standard 3500 rack card size
- Status Indicators: OK (module health), TX/RX (communication activity), Bypass (maintenance bypass status)
2.3 Main Product Features
- Universal Analog Input Compatibility: Supports both 4–20 mA current and ±10 Vdc voltage signals, covering mainstream industrial process sensors for pressure, flow, liquid level, and auxiliary temperature measurement
- Integrated Buffered Output: Each channel provides independent buffered output, enabling real-time data transmission to recorders, SCADA systems and secondary display devices without signal attenuation
- Precision Alarm & Trip Logic: Features fully programmable high/low alarm, high-high/low-low trip setpoints, configurable delay and hysteresis, effectively avoiding false alarms caused by minor signal fluctuations
- High-Isolation Anti-Interference Capability: 500 Vdc system isolation enhances immunity to on-site electromagnetic interference, ensuring stable and accurate measurement in complex industrial electromagnetic environments
- TMR Redundant Safety Design: Compatible with triple modular redundant configuration and voting logic, eliminates single-point failure risks, meeting SIL-rated safety and emergency shutdown system requirements
- Software Configurable & Maintenance-Free: All channel parameters, signal types and alarm modes are configured via official software; no on-site manual calibration required for fast commissioning
- Industrial Hazardous Area Certification: Compliant with CSA/NRTL/C, ATEX/IECEx standards, suitable for Class 1 Div 2 and Zone 2 explosive hazardous industrial sites
- Seamless System Integration: Fully compatible with 3500 rack series controllers, communication modules and display units, realizing unified data management and centralized equipment condition diagnosis
2.4 Typical Application Scenarios
The 3500/62 163179-03 module is dedicated to process variable synchronous monitoring for key industrial rotating and process equipment, complementing vibration and temperature monitoring functions of the 3500 system, applicable to the following core scenarios:
- Power Generation Industry: Auxiliary process monitoring for steam turbines, gas turbines and generators, including lubricating oil pressure, cooling water flow, vacuum degree and system auxiliary temperature
- Petrochemical & Oil & Gas Industry: Real-time monitoring of compressor inlet/outlet pressure, medium flow, pipeline liquid level and reactor process parameters under hazardous and explosive working conditions
- Heavy Machinery & Metallurgy: Process parameter monitoring for large fans, blowers, rolling mills and rotary kilns, supporting equipment load condition analysis and operation optimization
- Industrial Safety Protection Systems: Process condition linkage monitoring for ESD emergency shutdown systems, realizing joint protection of mechanical state and process state to prevent unit failure and safety accidents
- Intelligent Predictive Maintenance: Long-term process data recording and trend analysis, assisting operation and maintenance personnel in judging equipment aging, pipeline blockage and process abnormality, realizing predictive maintenance
2.5 Supporting Components & Accessories
2.5.1 Core Matching Accessories
- 163179-03 Dedicated Termination Accessories: Special external termination terminals and wiring accessories for 3500/62, supporting standard field wiring, ensuring stable connection of analog current and voltage signals
2.5.2 General Supporting Accessories
- External Termination Blocks: Standard Euro-style and strip-type terminal blocks for 3500 series analog modules, supporting centralized signal wiring
- Analog Signal Cables: Shielded 4–20mA/voltage special transmission cables, anti-interference design for long-distance field signal transmission
- Intrinsic Safety Barriers: Matching isolation barrier modules for hazardous area deployment, ensuring intrinsic safety of field sensor loops
2.6 Related Product Models & Differences
2.6.1 3500/62 Derivative Models
- 3500/62 Standard Version (163179-03): Universal non-isolated channel version for conventional industrial process monitoring, cost-effective and widely applicable
- 3500/62 Isolated Version: With independent channel-to-channel isolation, suitable for high-interference industrial sites and multi-signal mixed wiring scenarios
2.6.2 Comparison with 3500/61
- 3500/61: Professional temperature monitoring module, exclusive for RTD/TC temperature sensors, equipped with recorder output, focused on equipment temperature protection
- 3500/62: Universal process variable monitoring module, for 4-20mA/±10V analog signals, focused on pressure, flow, level and other process parameter monitoring, realizing full-condition equipment monitoring together with 3500/61
2.7 System Compatibility Requirements
The 3500/62 163179-03 module is fully compatible with standard Bently Nevada 3500 rack systems. It matches 3500/20 rack interface module, 3500/01/02 system software and above versions. The module supports mixed installation with 3500/61 temperature modules, vibration monitoring modules and other functional cards, realizing integrated monitoring of mechanical vibration, temperature and process variables for industrial equipment.





