{"product_id":"triconex-3805e-4-20ma-tmr-analog-output-module","title":"Triconex 3805E 4-20mA TMR Analog Output Module","description":"\u003ch2\u003eTRICONEX 3805E Analog Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTRICONEX 3805E\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eTRICONEX 3805E\u003c\/strong\u003e Analog Output Module, operates as a dedicated hardware component for driving field devices with safe, redundant analog signals within Tricon 3000 Series SIS racks. The module converts internal processor variables into standard physical current loops to manipulate proportional control valves and positioners. It executes high-integrity loop command actions across safety-critical instrumentation paths.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3624\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTRICONEX (Schneider Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4 kg net weight (10 kg bulk shipping weight allocation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e177.8 mm x 101.6 mm x 228.6 mm (Note: Shipping dimensions are cataloged separately under a 9 kg structural package volume envelope)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C (32 deg F to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~6 W typical backplane draw @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 analog output points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eTriple Modular Redundancy (TMR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA output nominal (+6% overrange capability up to 21.2 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Coupling\u003c\/td\u003e\n\u003ctd\u003eNon-isolated points, commoned return, DC coupled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Accuracy\u003c\/td\u003e\n\u003ctd\u003eLess than 0.25% of Full Scale Range (FSR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver-Range Protection\u003c\/td\u003e\n\u003ctd\u003e+42.5 VDC continuous voltage block protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeg Switching Latency\u003c\/td\u003e\n\u003ctd\u003eLess than 10 ms typical upon individual leg failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Identification\u003c\/td\u003e\n\u003ctd\u003ePea Green color code front fascia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundancy \u0026amp; Fail-Safe State Execution\u003c\/h3\u003e\n\u003cp\u003eConfigured to guarantee fault-tolerant process control, the module relies on a hardware-based Triple Modular Redundancy (TMR) architecture. The execution path continuously processes variables across three independent internal logic legs, using integrated voter circuitry to output a single analog control signal. If an internal leg component experiences an electrical failure, the diagnostic framework detects the deviation and switches processing paths in less than 10 ms. This high-speed transition maintains the loop current without inducing process disruptions or allowing the system to drop out of its safe operating state. The DC-coupled circuitry features continuous +42.5 VDC over-range protection to guard the internal voting components against sustained back-EMF spikes from inductive field devices.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the commoned return configuration affect channel routing and electrical loop separation?\u003c\/p\u003e\n\u003cp\u003eA: The 8 analog output channels share a commoned return path and are DC coupled rather than channel-to-channel isolated. Engineers must verify that all connected field devices (such as I\/P transducers or valve actuators) share a compatible reference potential to prevent ground loops from degrading the 0.25% FSR output accuracy.\u003c\/p\u003e\n\u003cp\u003eQ: What happens to the analog loop signal during an online hot-swap procedure?\u003c\/p\u003e\n\u003cp\u003eA: During a hot-swap replacement, the module architecture utilizes the redundant slots on the Tricon baseplate. The replacement card must establish synchronized TriBus backplane communication and pass all internal diagnostics before the active unit hands over current loop control, preventing output bumps or spurious process trips.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommoned Line Configuration\u003c\/strong\u003e: Connect field instruments using a strict star-grounding topology back to the commoned return termination point to minimize electrical potential differences across the non-isolated channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Path Shielding\u003c\/strong\u003e: Enclose all 4-20 mA loop lines in twisted, shielded pair cables. Ground the cable shields exclusively at the instrument enclosure chassis ground to suppress electromagnetic interference on the 12-bit conversion pathways.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Attachment Controls\u003c\/strong\u003e: Align the module straight within the single-slot rack guide tracks. Insert the card firmly until the high-density backplane pins engage fully with the TriBus socket, then secure the integrated retention screws to complete the frame installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Environment Controls\u003c\/strong\u003e: Maintain cabinet ventilation parameters to ensure local ambient temperatures do not exceed the +60 deg C upper limit, preventing thermal drift from degrading output accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":43723927650394,"sku":"3805E","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/174._d3061338-cd1e-4a82-bb51-5f0312d1c6c5.jpg?v=1784860376","url":"https:\/\/www.spareoil.com\/ar\/products\/triconex-3805e-4-20ma-tmr-analog-output-module","provider":"SpareOil Automation","version":"1.0","type":"link"}