Process Safety & Control Solution — TRICONEX 3805EN | Analog Output Module
Where This Product Is Used
The TRICONEX 3805EN Analog Output Module is deployed in safety-instrumented systems (SIS) and distributed control systems (DCS) across the most demanding process industries. Typical installation environments include:
- Oil & Gas — Upstream & Midstream: Wellhead control panels, pipeline emergency shutdown (ESD) systems, and compressor anti-surge control loops requiring continuous 4–20 mA analog output to final control elements (FCEs) such as control valves and positioners.
- LNG & Petrochemical Plants: Burner management systems (BMS) and high-integrity pressure protection systems (HIPPS) where SIL 2/3 analog output integrity is mandatory per IEC 61511.
- Power Generation: Turbine governor control and boiler protection systems requiring high-resolution analog output with fault-tolerant redundancy.
- Nuclear & Chemical Processing: Reactor coolant control and chemical dosing systems where triple modular redundancy (TMR) output voting eliminates single-point failures.
- Offshore Platforms: Fire & gas (F&G) suppression actuation and process shutdown (PSD) systems operating in Class I, Division 2 / Zone 1 hazardous areas.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 3805EN |
| Manufacturer | TRICONEX (Schneider Electric) |
| Module Type | Analog Output Module |
| Architecture | Triple Modular Redundancy (TMR) |
| Output Channels | 8 channels (4–20 mA, current output) |
| Output Range | 4–20 mA (HART-compatible) |
| Resolution | 12-bit D/A conversion |
| Load Impedance | 0–750 Ω per channel |
| Isolation | Channel-to-channel and channel-to-backplane optical isolation |
| Safety Integrity Level | SIL 3 capable (IEC 61508 / IEC 61511) |
| Backplane Interface | Tricon Main Chassis / Expansion Chassis |
| Power Consumption | Refer to Tricon system power budget |
| Operating Temperature | 0°C to +60°C |
| Weight | 3,300 g (approx.) |
| Certifications | TÜV, FM, CSA, ATEX (system-level) |
Why Engineers Specify This Model
- TMR Fault Tolerance: Three independent processing legs vote on every output command — a single-leg failure does not interrupt process control or trigger a spurious trip, maximizing plant availability.
- Online Replacement (Hot-Swap): The 3805EN can be replaced under power without process interruption, eliminating planned shutdowns for module maintenance.
- HART Pass-Through: Supports HART protocol superimposed on the 4–20 mA signal, enabling remote valve diagnostics and asset management without additional wiring.
- Diagnostics & Self-Test: Continuous background diagnostics detect open-circuit, short-circuit, and out-of-range conditions per channel, with fault annunciation to the Tricon controller.
- Proven Field History: The Tricon platform and its I/O modules have accumulated decades of operational hours in SIL 3 applications globally, with an established safety case accepted by major certification bodies.
- Backward Compatibility: Fits existing Tricon chassis without hardware modification, protecting capital investment in legacy safety systems.
Complete System Bill of Materials
The 3805EN is typically specified alongside the following Tricon system components:
- Tricon Main Chassis (e.g., 8310 / 8312) — system backplane and power distribution
- Tricon Main Processor Module (e.g., 4351B / 4352B) — TMR logic solver
- Tricon Power Supply Module (e.g., 8110 / 8112) — redundant 24 VDC or 120/240 VAC input
- Tricon Communication Module (e.g., 4119A / 4329) — Modbus, OPC, or Tristation interface
- Analog Input Modules (e.g., 3700A / 3703E) — paired with 3805EN for closed-loop control
- Field Termination Assemblies (FTAs) — marshalling panels for 4–20 mA field wiring
- TriStation 1131 Engineering Workstation — IEC 61131-3 programming and configuration
Contact [email protected] for complete BOM quotations and system integration support.
Compliance & Industry Standards
- IEC 61508 — Functional Safety of E/E/PE Safety-Related Systems (SIL 3)
- IEC 61511 — Functional Safety for the Process Industry Sector
- IEC 61131-3 — Programmable Controller Programming Languages
- NFPA 72 / NFPA 85 — Fire Alarm and Boiler/Combustion Systems (application-dependent)
- API RP 14C / API 670 — Offshore Safety Systems and Machinery Protection
- ATEX Directive 2014/34/EU — Equipment for Explosive Atmospheres (system-level certification)
- FM / CSA — North American hazardous location approvals
- TÜV Rheinland — Independent functional safety assessment
Quality Assurance & Sourcing
Konmask.com sources the TRICONEX 3805EN through verified industrial automation distributors and authorized channel partners. Every unit offered undergoes the following quality process:
- Visual Inspection: Board-level inspection for physical damage, corrosion, and counterfeit indicators prior to listing.
- Traceability Documentation: Serial number logging and, where available, original manufacturer documentation or test records.
- Functional Verification: Where test equipment is available, modules are bench-tested against known-good Tricon chassis configurations.
- Packaging: Anti-static ESD packaging with desiccant for long-term storage integrity during international transit.
- Warranty: 90-day replacement warranty against DOA (Dead on Arrival) defects. Extended warranty available on request.
How to Source This Part
Procurement teams and engineers can acquire the TRICONEX 3805EN through Konmask.com via the following channels:
- Online Order: Add to cart and check out directly. We accept T/T bank transfer, PayPal, and major credit cards.
- RFQ / Bulk Inquiry: Email [email protected] with your required quantity, delivery timeline, and destination port for a formal quotation.
- Phone / WhatsApp: +0086 19859288691 — available for urgent procurement and technical pre-sales questions.
- Lead Time: In-stock units ship within 1–3 business days. Ex-stock availability confirmed at time of order.
- Export Compliance: We handle export documentation (commercial invoice, packing list, COO) for international shipments. DDP/DAP Incoterms available.
Application-Specific FAQ
Q: Is the 3805EN compatible with the Tricon v9 and v10 chassis?
A: The 3805EN is designed for the Tricon TMR platform. Compatibility depends on the specific chassis revision and firmware version. Please provide your existing chassis model number when inquiring so our technical team can confirm fit.
Q: Can the 3805EN be used in a non-safety (BPCS) application?
A: Yes. While the module is SIL 3 rated, it can be deployed in basic process control systems (BPCS) where high availability and fault tolerance are required without a formal SIL classification.
Q: Does the module support HART communication?
A: The 3805EN outputs a standard 4–20 mA signal. HART superimposition capability depends on the specific firmware and Tricon system configuration. Consult the Tricon I/O module datasheet or contact us for clarification.
Q: What is the typical lead time for a refurbished vs. new unit?
A: New surplus units typically ship within 1–3 business days from our warehouse. Refurbished units may require 5–10 business days for testing and certification. Contact us for current stock status.
Q: Do you provide a Certificate of Conformance (CoC)?
A: Yes. A CoC is available upon request for all units. For safety-critical applications requiring full traceability, please specify this requirement at the time of order.
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