3805E TRICONEX

Description

1. Product Description

2. Product Parameters

Parameter	Details
Output Channels	8 isolated analog outputs (4–20 mA or 0–10 VDC)
Resolution	12 bits (0.25% full-scale accuracy)
Redundancy	TMR (triple modular redundancy) with automatic fault detection
Safety Integrity Level	SIL 3 (IEC 61508 certified)
Communication	Direct integration with TRICONEX Tricon/Tricon CX systems via TriBus
Power Supply	24V DC ±10% (redundant power input supported)
Operating Temperature	-40°C to +70°C (storage: -40°C to +85°C)
Response Time	≤10 ms for full-scale step change
Output Load	Current: ≤600 Ω; Voltage: ≥10 kΩ
Dimensions	177.8 mm × 44.5 mm × 254 mm (7″ × 1.75″ × 10″)

TRICONEX 3805E

3. Advantages and Features

• Triple Modular Redundancy (TMR):
  The TRICONEX 3805E’s TMR architecture eliminates single-point failures by triplicating critical components. If one channel fails, the remaining two continue operation, achieving a mean time between failures (MTBF) exceeding 200,000 hours. This ensures uninterrupted control in scenarios where system downtime is unacceptable.
• High Precision and Stability:
  With a 12-bit resolution and ±0.25% accuracy, the module provides precise analog outputs for fine-grained process control. In a chemical reactor application, this level of accuracy reduced process variability by 30%, improving product quality and yield.
• Fail-Safe Design and Advanced Diagnostics:
  Built-in diagnostics monitor output signals, voltage, and temperature in real time. In the event of a fault, the module switches to a safe state within 10 ms, protecting connected equipment and personnel.
• Rugged Environmental Performance:
  Rated for extreme temperatures (-40°C to +70°C) and resistant to vibration and EMI, the TRICONEX 3805E operates reliably in offshore platforms, refineries, and other harsh industrial settings.

4. Application Areas and Application Cases

• Oil and Gas: Controls valve positioning in subsea pipelines, regulates compressor speed in refineries, and manages emergency shutdown (ESD) systems.
• Chemical Processing: Precise control of reactor temperatures, agitator speeds, and material feed rates in batch and continuous processes.
• Power Generation: Adjusts fuel flow to gas turbines, controls steam valve positions in boilers, and manages grid synchronization in power plants.

5. Competition-related Comparison

• Superior Redundancy: TMR architecture offers higher fault tolerance than dual or non-redundant designs, reducing the risk of uncontrolled process deviations.
• Safety Certification: SIL 3 compliance makes it suitable for the most critical safety applications, while many alternatives only meet lower safety integrity levels.
• Environmental Robustness: A wider operating temperature range (-40°C to +70°C) and EMI resistance make it a preferred choice for harsh industrial settings.
• Flexible Configuration: Supports both current and voltage outputs, enabling compatibility with diverse field devices without additional hardware.
  

  TRICONEX 3805E

6. Selection Suggestions

• Safety Requirements: Choose the TRICONEX 3805E for applications requiring SIL 3 certification, such as ESD, SIS, or fire and gas systems.
• System Compatibility: Ensure compatibility with your existing TRICONEX control system to leverage seamless integration and advanced diagnostic features.
• Environmental Conditions: If your site has extreme temperatures, high vibration, or EMI, the module’s rugged design ensures reliable performance without additional protective measures.
• Output Needs: With 8 isolated channels, it is ideal for medium-scale systems; consider higher-channel modules for large installations to optimize space and cost.

7. Precautions

• Installation: Power down the system before installing or replacing the module to prevent electrostatic discharge (ESD) damage. Use shielded cables and follow grounding guidelines to minimize EMI.
• Maintenance: Regularly monitor module health via the TRICONEX system interface, checking for abnormal voltage, temperature, or diagnostic alerts. Replace faulty channels promptly to maintain redundancy.
• Firmware Updates: Keep the module’s firmware updated using official tools to ensure access to the latest safety patches and performance optimizations.
• Load Matching: Verify that the output load (resistive or capacitive) matches the module’s specifications to avoid signal distortion or hardware damage.