{"product_id":"honeywell-mu-tamr03-51309218-125-low-level-analog-input-multiplexer-rtd-fta","title":"Honeywell MU-TAMR03 51309218-125 Low Level Analog Input Multiplexer RTD FTA","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for seamless integration within legacy TDC 3000 and Experion safety or control architectures, this \u003cstrong\u003eHoneywell\u003c\/strong\u003e \u003cstrong\u003eMU-TAMR03\u003c\/strong\u003e serves as a specialized Low Level Analog Multiplexer (LLMux) Field Termination Assembly (FTA) dedicated to RTD temperature sensor interfaces. Operating as a critical link between field-level RTDs and the Low Level Analog Input Multiplexer (LLMux) Input\/Output Processor (IOP), this module enables high-density, millivolt-level temperature data acquisition. The assembly features robust \u003cstrong\u003ecompression terminals\u003c\/strong\u003e for point-to-point field wiring and is specifically engineered for non-redundant configurations in controlled control room environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Density Interface:\u003c\/strong\u003e Supports up to 16 independent low-level analog input channels for RTD measurement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Terminal Blocks:\u003c\/strong\u003e Features secure, direct compression connections to accommodate standard field wiring without soldering or specialized lugs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle IOP Architecture:\u003c\/strong\u003e Configured for non-redundant, single-channel interface systems, maximizing slot efficiency in standard loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTDC 3000 Compatibility:\u003c\/strong\u003e Engineered to connect via standard Honeywell proprietary cabling directly to the LLMux IOP card.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Generation:\u003c\/strong\u003e High-density temperature monitoring of bearing housing, stator windings, and exhaust gases.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefining and Petrochemicals:\u003c\/strong\u003e Multi-point RTD tracking on distillation columns and heat exchangers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePulp and Paper:\u003c\/strong\u003e Multi-channel continuous thermal profiling in harsh drying sections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; margin-bottom: 1.5rem;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003ePart Number\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Type\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eConformal Coating\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMU-TAMR03\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003e51309218-125\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eCompression\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eNo (Uncoated)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMC-TAMR03\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003e51309218-175\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eCompression\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eYes (Conformally Coated)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMU-TAMR13\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003e51309218-225\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eScrew Terminal\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eNo (Uncoated)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold; width: 30%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Reference\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMU-TAMR03\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePart Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e51309218-125\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLow Level Analog Input Multiplexer RTD FTA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e16 Channels\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCompression Terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRedundancy Support\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNot Supported (Single IOP Only)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConformal Coating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNo\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCE Compliance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNo\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 60 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eUSA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2.5 kg \/ 5.5 lbs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e31.0 x 14.5 x 8.0 cm (12.2 x 5.7 x 3.1 in)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe MU-TAMR03 routes 3-wire RTD connections from the field directly to the LLMux multiplexing circuitry. Each of the 16 channels requires three dedicated termination points to ensure accurate lead-wire resistance compensation.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; margin-bottom: 1.5rem;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Node Name\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eDescription\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eRTD Source (+)\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eCurrent excitation source line to the RTD sensor element.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eRTD Sense (-)\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eVoltage sensing return path for lead-wire resistance calculation.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eC\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eRTD Return \/ Shield\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eCommon reference return and instrumentation shield grounding point.\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 51309218-125 (MU-TAMR03) belongs to the non-conformally coated class of TDC 3000 assemblies. For harsh or corrosive petrochemical installations, engineers must specify the MC-TAMR03 (51309218-175), which incorporates a protective conformal coating layer. Additionally, if your facility standardizes on screw-type termination barriers rather than compression clamps, the MU-TAMR13 variant should be deployed instead.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBecause this FTA is a non-redundant system, the loss of this module or its direct serial cable interface will cause the immediate drop of all 16 analog monitoring loops. Crucially, as an uncoated board, placing the MU-TAMR03 in an environment subject to condensing humidity or corrosive gases (such as hydrogen sulfide) will lead to early degradation of the analog multiplexing chips, resulting in erratic, drifting, or open-circuit RTD error statuses.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo maintain maximum accuracy, ensure all three wires of the RTD circuit have the identical physical resistance. Discrepancies in wire length or contact oxidation at the compression terminals will degrade the lead resistance compensation calculation inside the LLMux IOP. During commissioning, run high-quality shielded twisted-pair cables, and ensure the shield drain wire is terminated only at the designated FTA shield ground terminal to mitigate ground loop noise.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eBefore installing or servicing the FTA, verify that all system power sources associated with the IOP rack and field instrumentation are fully de-energized. Failure to isolate power paths can lead to short circuits, permanent damage to the multi-channel multiplexing circuitry, or false control loops in active processes.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eMount the FTA card securely to the cabinet DIN rail or standard mounting plate inside a dust-free, environmentally controlled enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eConnect the dedicated LLMux serial interface cable from the FTA card socket to the corresponding channel connector on the non-redundant IOP card.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eStrip field RTD cables back 6mm and insert individual conductors into the compression block terminals. Hand-tighten the retention screws firmly, ensuring no bare copper wire is exposed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705312309611,"sku":"MU-TAMR03","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/51309218-125-02hob1cl2yp_ff33e1be-ad94-478f-8586-7f317adae1ce.jpg?v=1766639545","url":"https:\/\/www.plcprotech.com\/tr\/products\/honeywell-mu-tamr03-51309218-125-low-level-analog-input-multiplexer-rtd-fta","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}