{"product_id":"honeywell-51309218-125-low-level-analog-module","title":"Honeywell 51309218-125 Low Level Analog Module","description":"\u003cp\u003eConfigured for low-level RTD analog input multiplexing and field temperature signal termination in Honeywell TDC 3000 and Experion PKS systems, the \u003cstrong\u003eHoneywell 51309218-125\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51309218-125\u003c\/strong\u003e Low Level Analog Input Multiplexer RTD FTA, provides direct physical\/electrical execution.\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\u003e51309218-125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.0 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive field interface load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Interface\u003c\/td\u003e\n\u003ctd\u003eRTD (Resistance Temperature Detector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eCompression terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIOP Interface\u003c\/td\u003e\n\u003ctd\u003eSingle IOP interface (Redundancy not supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eNot CE compliant, not conformally coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe low-level multiplexer termination assembly interface conditions millivolt-level resistance changes across 16 dedicated RTD sensor input loops before passing digitized values to the primary I\/O processor card. High-density channel isolation and filtering circuits attenuate common-mode electromagnetic noise and stray ground currents on field cabling, preventing signal drift. This low-level signal conditioning maintains measurement precision for temperature process loops running alongside standard 4-20 mA HART loop protocol analog channels within shared control cabinets.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 51309218-125 FTA assembly support redundant I\/O processor (IOP) topologies?\u003c\/p\u003e\n\u003cp\u003eA: No, the 51309218-125 is engineered exclusively for a single IOP interface configuration; dual redundant IOP connections are not supported.\u003c\/p\u003e\n\u003cp\u003eQ: What environmental coating and compliance specifications apply to this part number?\u003c\/p\u003e\n\u003cp\u003eA: Part number 51309218-125 is non-CE compliant and is supplied without conformal coating.\u003c\/p\u003e\n\u003cp\u003eQ: What type of field wiring termination hardware is integrated on the board?\u003c\/p\u003e\n\u003cp\u003eA: Field conductor connections are established directly via onboard compression terminal blocks.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect backplane power and field instrument loop power before installing or removing the FTA board from the mounting channel.\u003c\/li\u003e\n\u003cli\u003eFasten the assembly onto the standard enclosure rail using designated retention hardware to ensure mechanical stability.\u003c\/li\u003e\n\u003cli\u003eWire incoming 2-wire, 3-wire, or 4-wire RTD sensor leads to the corresponding compression terminals, ensuring screws are torqued to spec.\u003c\/li\u003e\n\u003cli\u003eRoute low-level RTD signal conductors in separate grounded metallic conduits away from high-voltage AC cables and switching inductive loads.\u003c\/li\u003e\n\u003cli\u003eGround all individual cable shield drain wires at the single-point cabinet enclosure earth bar to minimize noise interference on millivolt inputs.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52406979035432,"sku":"51309218-125","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/51309218-125.png?v=1789716988","url":"https:\/\/www.powerdcs.com\/products\/honeywell-51309218-125-low-level-analog-module","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}