| एमओक्यू: | 1 | 
| कीमत: | negotiable | 
| मानक पैकेजिंग: | 50*50*50मिमी | 
| वितरण अवधि: | 3-7 | 
| भुगतान विधि: | टी/टी | 
| आपूर्ति क्षमता: | 1/टुकड़ा स्टॉक में | 
The 3721 is a high-reliability analog input module designed for critical process control applications requiring precision measurement and fault-tolerant operation. This robust safety system component features a Triple Modular Redundant (TMR) architecture with three isolated input channels per point, providing maximum system integrity and accuracy. Key technical specifications include 16-channel analog input capacity, support for 4-20mA signals, and an operating temperature range from -40°C to +70°C. The module offers high-resolution 16-bit ADC conversion with accuracy within ±0.1% of span and complies with IEC 61508 SIL 3 safety standards. It operates on 24V DC power supply with redundant power input capability and features hot-swappable design for maintenance without system shutdown. The unit incorporates advanced diagnostics with per-channel LED status indicators and supports multiple communication protocols including TriStation and Modbus TCP/IP for seamless integration into modern control systems.
This analog input module excels in safety-critical applications across oil and gas, chemical processing, and power generation industries where accurate signal acquisition is essential for process safety. The TMR architecture ensures continuous operation even with component failure, while the comprehensive diagnostic coverage enables real-time fault detection and resolution. Key advantages include reduced downtime through online maintenance capability, improved safety integrity with SIL 3 certification, and high measurement accuracy for precise process control. The module's robust design provides immunity to electromagnetic interference and electrical noise, ensuring stable signal acquisition in harsh industrial environments. These features combine to deliver enhanced process safety, reduced lifecycle costs, and compliance with international safety standards while maintaining continuous process monitoring capabilities.
The module offers comprehensive integration capabilities through standardized interfaces and advanced communication protocols. The hot-swappable design allows module replacement during system operation without process interruption, while the built-in diagnostics provide real-time channel-level health monitoring. Key performance features include automatic signal validation, continuous online testing, and event sequence recording for incident analysis. The unit maintains synchronization between all three input channels while executing continuous diagnostics, with automatic compensation for signal drift or degradation. These characteristics, combined with compliance with international safety standards, make the 3721 an ideal solution for modern industrial safety systems requiring high-accuracy signal acquisition, easy integration, and long-term operational stability in demanding applications.
| Attribute | Description | 
|---|---|
| Product Type | Analog Input Module (TMR) | 
| Model Number | 3721 | 
| System Series | Tricon V9 / V9.5 | 
| Primary Function | Provides triple modular redundant (TMR) analog input channels for reading signals from field sensors (e.g., pressure, temperature, flow). | 
| Architecture | Triple Modular Redundant (TMR) - Three isolated input circuits per channel. | 
| Number of Channels | 8 channels (single-ended) or 4 channels (differential), software configurable. | 
| Input Signal Range | Software selectable: 0/4-20 mA, 1-5 V, 0-5 V, 0-10 V, ±5 V, ±10 V. | 
| Resolution | 16 bits | 
| Accuracy | ±0.1% of full scale (typical) | 
| Isolation | 1500 V AC (Channel-to-Channel and Channel-to-System) | 
| Diagnostics | Comprehensive, including open circuit, short circuit, out-of-range, and hardware mismatch detection. | 
| Hot Swappable | Yes - Can be inserted or removed from a powered chassis without disrupting system operation. | 
| Field Side Power | Provides a user-selectable, fused 24V DC loop power for 2-wire transmitters. | 
| Safety Certification | Suitable for use in Safety Instrumented Systems (SIS) up to SIL 3 per IEC 61508. | 
| Compatible Main Processor | Tricon V9 CPU models (e.g., 3008, 3009, 3510, 3511). | 
| Typical Application | Critical process monitoring in industries like Oil & Gas, Petrochemical, and Power Generation. | 
Packaging & Shipping
![]()
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
perfectly.
![]()
we are major in PLC,Sensors,HIM,Transmitters.
Best Supply Brands As Following:1)Bently nevada.2)+GF+.3)Rosemount.4)ABB.5)Allen-Bradley.6)Foxobro.Good working environment, perfect team, sincere cooperation →→ Achieve u and our success !!!
![]()
          | एमओक्यू: | 1 | 
| कीमत: | negotiable | 
| मानक पैकेजिंग: | 50*50*50मिमी | 
| वितरण अवधि: | 3-7 | 
| भुगतान विधि: | टी/टी | 
| आपूर्ति क्षमता: | 1/टुकड़ा स्टॉक में | 
The 3721 is a high-reliability analog input module designed for critical process control applications requiring precision measurement and fault-tolerant operation. This robust safety system component features a Triple Modular Redundant (TMR) architecture with three isolated input channels per point, providing maximum system integrity and accuracy. Key technical specifications include 16-channel analog input capacity, support for 4-20mA signals, and an operating temperature range from -40°C to +70°C. The module offers high-resolution 16-bit ADC conversion with accuracy within ±0.1% of span and complies with IEC 61508 SIL 3 safety standards. It operates on 24V DC power supply with redundant power input capability and features hot-swappable design for maintenance without system shutdown. The unit incorporates advanced diagnostics with per-channel LED status indicators and supports multiple communication protocols including TriStation and Modbus TCP/IP for seamless integration into modern control systems.
This analog input module excels in safety-critical applications across oil and gas, chemical processing, and power generation industries where accurate signal acquisition is essential for process safety. The TMR architecture ensures continuous operation even with component failure, while the comprehensive diagnostic coverage enables real-time fault detection and resolution. Key advantages include reduced downtime through online maintenance capability, improved safety integrity with SIL 3 certification, and high measurement accuracy for precise process control. The module's robust design provides immunity to electromagnetic interference and electrical noise, ensuring stable signal acquisition in harsh industrial environments. These features combine to deliver enhanced process safety, reduced lifecycle costs, and compliance with international safety standards while maintaining continuous process monitoring capabilities.
The module offers comprehensive integration capabilities through standardized interfaces and advanced communication protocols. The hot-swappable design allows module replacement during system operation without process interruption, while the built-in diagnostics provide real-time channel-level health monitoring. Key performance features include automatic signal validation, continuous online testing, and event sequence recording for incident analysis. The unit maintains synchronization between all three input channels while executing continuous diagnostics, with automatic compensation for signal drift or degradation. These characteristics, combined with compliance with international safety standards, make the 3721 an ideal solution for modern industrial safety systems requiring high-accuracy signal acquisition, easy integration, and long-term operational stability in demanding applications.
| Attribute | Description | 
|---|---|
| Product Type | Analog Input Module (TMR) | 
| Model Number | 3721 | 
| System Series | Tricon V9 / V9.5 | 
| Primary Function | Provides triple modular redundant (TMR) analog input channels for reading signals from field sensors (e.g., pressure, temperature, flow). | 
| Architecture | Triple Modular Redundant (TMR) - Three isolated input circuits per channel. | 
| Number of Channels | 8 channels (single-ended) or 4 channels (differential), software configurable. | 
| Input Signal Range | Software selectable: 0/4-20 mA, 1-5 V, 0-5 V, 0-10 V, ±5 V, ±10 V. | 
| Resolution | 16 bits | 
| Accuracy | ±0.1% of full scale (typical) | 
| Isolation | 1500 V AC (Channel-to-Channel and Channel-to-System) | 
| Diagnostics | Comprehensive, including open circuit, short circuit, out-of-range, and hardware mismatch detection. | 
| Hot Swappable | Yes - Can be inserted or removed from a powered chassis without disrupting system operation. | 
| Field Side Power | Provides a user-selectable, fused 24V DC loop power for 2-wire transmitters. | 
| Safety Certification | Suitable for use in Safety Instrumented Systems (SIS) up to SIL 3 per IEC 61508. | 
| Compatible Main Processor | Tricon V9 CPU models (e.g., 3008, 3009, 3510, 3511). | 
| Typical Application | Critical process monitoring in industries like Oil & Gas, Petrochemical, and Power Generation. | 
Packaging & Shipping
![]()
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
perfectly.
![]()
we are major in PLC,Sensors,HIM,Transmitters.
Best Supply Brands As Following:1)Bently nevada.2)+GF+.3)Rosemount.4)ABB.5)Allen-Bradley.6)Foxobro.Good working environment, perfect team, sincere cooperation →→ Achieve u and our success !!!
![]()