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Product Overview
The TRICONEX 3481S2 is a high-performance analog output module engineered for safety-critical applications in industries such as oil and gas, chemical processing, and nuclear power. As part of TRICONEX’s Tricon and Trident platforms, it specializes in converting digital control signals into precise analog outputs (4–20 mA) to drive field devices like valves, actuators, and process controllers. Built with TRICONEX’s triple modular redundancy (TMR) architecture, the TRICONEX 3481S2 features three independent processing channels that operate in parallel, ensuring continuous operation even if one channel fails. This design meets SIL 3 safety standards (IEC 61508) and ATEX/IECEx certifications for hazardous environments, making it ideal for applications where system integrity is non-negotiable .
The TRICONEX 3481S2 is a high-performance analog output module engineered for safety-critical applications in industries such as oil and gas, chemical processing, and nuclear power. As part of TRICONEX’s Tricon and Trident platforms, it specializes in converting digital control signals into precise analog outputs (4–20 mA) to drive field devices like valves, actuators, and process controllers. Built with TRICONEX’s triple modular redundancy (TMR) architecture, the TRICONEX 3481S2 features three independent processing channels that operate in parallel, ensuring continuous operation even if one channel fails. This design meets SIL 3 safety standards (IEC 61508) and ATEX/IECEx certifications for hazardous environments, making it ideal for applications where system integrity is non-negotiable .
The TRICONEX 3481S2 supports 4 isolated analog output channels, each protected by 2.5 kV galvanic isolation to shield against voltage spikes, ground loops, and electromagnetic interference. Its 12-bit resolution and <0.25% full-scale accuracy ensure precise control in demanding industrial settings. The module’s compact yet rugged construction allows it to withstand extreme temperatures (-40°C to 70°C) and harsh conditions, making it suitable for offshore platforms, refineries, and nuclear facilities. It integrates seamlessly with TRICONEX’s TriStation configuration software, enabling users to define output thresholds, fail-safe states, and diagnostic parameters. Its compatibility with standard industrial protocols (e.g., Modbus RTU) and support for hot-swap capabilities further enhance its versatility, allowing for efficient system upgrades and maintenance without disrupting operations .
Technical Specifications
| Parameter | Value |
|---|---|
| Product model | TRICONEX 3481S2 |
| Manufacturer | TRICONEX |
| Product type | Analog output module |
| Physical dimensions | 4.3 cm (height) × 18.8 cm (width) × 21.8 cm (depth) |
| Weight | 1.46 kg |
| Electrical specifications | 24 V DC operating voltage; 2.5 A maximum current consumption |
| Output channels | 4 isolated analog outputs (4–20 mA controlled, 0–22 mA over-range) |
| Interface type | Terminal block connections; compatible with TRICONEX standard racks |
| Isolation | 2.5 kV galvanic isolation between channels and system |
| Working environment | Operating temperature: -40°C to 70°C; Relative humidity: 5%–95% (non-condensing) |
| Installation requirements | DIN rail or 19-inch rack mounting; secure fixation to resist vibration |
| Certifications | SIL 3 compliant (IEC 61508); ATEX/IECEx certified for Zone 1/2 hazardous areas |
| Response time | <1 ms (typical) |
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Related Products
- TRICONEX 3481: A predecessor analog output module with similar functionality. The TRICONEX 3481S2 offers enhanced surge protection and faster response times (1 ms vs. 3 ms) .
- TRICONEX 3361: A digital input module that pairs with the TRICONEX 3481S2 to form a complete control loop. The TRICONEX 3361 receives sensor signals, while the TRICONEX 3481S2 executes control commands to actuators .
- TRICONEX 3201: A communication module that connects the TRICONEX 3481S2 to higher-level systems (e.g., DCS, SCADA). It relays output data from the TRICONEX 3481S2 to enable remote monitoring and centralized control .
- TRICONEX 3004: The central processor module of TRICONEX SIS. The TRICONEX 3481S2 receives safety logic commands from the 3004 to trigger critical actions, such as emergency shutdowns .
- TRICONEX 3805E: A high-density analog output module with 8 channels. While the TRICONEX 3481S2 is optimized for safety-critical applications, the 3805E is suited for general process control .
Main features and advantages
Triple modular redundancy (TMR) for fail-safe operation: The TRICONEX 3481S2 uses three independent processing channels to verify and validate output signals. If one channel detects a fault, the other two continue operating, ensuring zero downtime and maintaining system safety. This design is critical for applications like emergency shutdown systems in offshore drilling rigs, where failure could lead to environmental disasters .
Triple modular redundancy (TMR) for fail-safe operation: The TRICONEX 3481S2 uses three independent processing channels to verify and validate output signals. If one channel detects a fault, the other two continue operating, ensuring zero downtime and maintaining system safety. This design is critical for applications like emergency shutdown systems in offshore drilling rigs, where failure could lead to environmental disasters .
Isolated channels for signal integrity: Each of the TRICONEX 3481S2’s 4 output channels features 2.5 kV galvanic isolation, protecting against voltage spikes and electromagnetic interference. This ensures that control commands—like valve actuation signals or alarm triggers—are transmitted accurately to field devices, reducing the risk of unintended operations .
Rugged design for harsh environments: The TRICONEX 3481S2 operates reliably in extreme temperatures (-40°C to 70°C) and high-humidity conditions, making it suitable for Arctic pipelines, chemical reactors, and coastal facilities. Its ATEX/IECEx certification further qualifies it for use in explosive atmospheres, ensuring compliance with strict safety regulations .
Hot-swap capability for efficient maintenance: Technicians can replace the TRICONEX 3481S2 without powering down the system, minimizing maintenance-related downtime. This is essential in continuous-process industries like pharmaceuticals, where production halts can lead to significant financial losses .
Advanced diagnostics for proactive maintenance: The TRICONEX 3481S2 provides real-time monitoring of channel health, detecting faults such as open circuits or short circuits. Faults are isolated and flagged immediately, allowing maintenance teams to address issues before they escalate, thereby reducing mean time to repair (MTTR) .
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Installation and maintenance
Pre-installation preparations: Before installing the TRICONEX 3481S2, power off the target system and verify compatibility with the existing firmware. Inspect the module for physical damage (e.g., bent pins, cracked casing) and ensure the mounting area (DIN rail or rack) is clean, level, and securely fastened. Configure output parameters (e.g., signal type, fail-safe state) using TRICONEX’s TriStation software to match the field devices. Confirm that the 24 V DC power supply meets the module’s current requirements (2.5 A max) to prevent overloading .
Pre-installation preparations: Before installing the TRICONEX 3481S2, power off the target system and verify compatibility with the existing firmware. Inspect the module for physical damage (e.g., bent pins, cracked casing) and ensure the mounting area (DIN rail or rack) is clean, level, and securely fastened. Configure output parameters (e.g., signal type, fail-safe state) using TRICONEX’s TriStation software to match the field devices. Confirm that the 24 V DC power supply meets the module’s current requirements (2.5 A max) to prevent overloading .
Maintenance suggestions: Regularly clean dust from the TRICONEX 3481S2’s vents using compressed air to prevent overheating. Every three months, check terminal connections for looseness and perform signal integrity tests by triggering output commands and verifying actuation. Update the module’s firmware annually to access bug fixes and new features. If faults are detected, use the module’s LED indicators to identify issues; replace the module if necessary, leveraging hot-swap capabilities to avoid system downtime .
Application fields
The TRICONEX 3481S2 is widely deployed in industries where safety and reliability are paramount. In oil and gas, it controls emergency shutdown valves in drilling rigs and pipelines. For example, if a pipeline sensor detects a pressure surge, the TRICONEX 3481S2 receives a command from the SIS and activates the valve to prevent leaks or explosions .
The TRICONEX 3481S2 is widely deployed in industries where safety and reliability are paramount. In oil and gas, it controls emergency shutdown valves in drilling rigs and pipelines. For example, if a pipeline sensor detects a pressure surge, the TRICONEX 3481S2 receives a command from the SIS and activates the valve to prevent leaks or explosions .
In chemical processing plants, the TRICONEX 3481S2 forms part of fire and gas suppression systems. It triggers sprinklers, vent valves, or isolation barriers in response to signals from gas detectors or heat sensors, protecting workers and preventing the release of toxic chemicals .
In power generation facilities, the TRICONEX 3481S2 controls turbine bypass valves and generator circuit breakers. It ensures that critical control signals are transmitted to the SIS, which can shut down equipment if readings exceed safe limits, safeguarding against costly damage or power outages .
In nuclear power plants, the TRICONEX 3481S2 monitors reactor coolant systems and safety interlocks. Its TMR architecture and SIL 3 certification make it ideal for applications where failure could have catastrophic consequences, ensuring compliance with nuclear safety standards .
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Product guarantee
Our company, a leading import and export trade distribution company established in 2007 with 17 years of experience, offers a one-year quality warranty service for the TRICONEX 3481S2, covering hardware malfunctions not caused by human factors. During the warranty period, if the TRICONEX 3481S2 shows abnormal performance or functional failure, we will provide replacement services. We specialize in selling major brands of industrial control parts, including many unpopular and discontinued models, with a large stock available. Our supply channels allow us to meet urgent demands for spare parts, ensuring your systems remain operational. Additionally, our technical support team is available to assist with installation, configuration, and troubleshooting, reinforcing our commitment to reliable service .
Our company, a leading import and export trade distribution company established in 2007 with 17 years of experience, offers a one-year quality warranty service for the TRICONEX 3481S2, covering hardware malfunctions not caused by human factors. During the warranty period, if the TRICONEX 3481S2 shows abnormal performance or functional failure, we will provide replacement services. We specialize in selling major brands of industrial control parts, including many unpopular and discontinued models, with a large stock available. Our supply channels allow us to meet urgent demands for spare parts, ensuring your systems remain operational. Additionally, our technical support team is available to assist with installation, configuration, and troubleshooting, reinforcing our commitment to reliable service .
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
