Overview
Manuals
Thermocouple FTA
Local CJR Boundary
LLMux System Match
Features:
- Honeywell table 12-1 maps MU-TAMT03 directly to 51309223-125.
- The manufacturer FTA listings identify 16 thermocouple inputs with local CJR and compression terminals.
- The LLMux IOP, power adapter and thermocouple FTA are separate assemblies.
Honeywell HPM Planning table 12-1 identifies MU-TAMT03 as an LLMux thermocouple FTA and gives exact part number 51309223-125. Its other field assembly tables list 16 points, compression terminals and a local cold-junction reference. The parts table also distinguishes MC-TAMT03 51309223-175 as coated, while MU-TAMT13 is the separate remote-CJR thermocouple FTA. These documented distinctions matter when replacing an installed termination assembly. The catalog description alone does not establish the particular thermocouple sensor type, configured measurement span, installed compensation wiring or accuracy of a complete process loop.
In the Honeywell LLMux configuration, the MU-TAMT03 FTA communicates with a separate MU-PLAM02 IOP through the MU-TLPA02 power adapter and specified cabling. The manufacturer warns that LLMux assemblies are not compatible with RHMUX assemblies. Before an authorized change, record the actual FTA marking, local reference wiring, sensor types, terminal assignments, adapter, processor, cable, cabinet and system release. Follow site isolation and current Honeywell instructions. After fitting, inspect connections and verify each affected thermocouple indication and diagnostic state against known conditions. Do not substitute a remote-CJR or coated assembly solely because its model prefix resembles the installed part.
The MU-TAMT03 51309223-125 Honeywell HPM 16-Point LLMux TC FTA may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell MU-TAMT03 51309223-125 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell HPM Planning table 12-1 directly maps MU-TAMT03 to 51309223-125 as an LLMux thermocouple field termination assembly. Additional manufacturer FTA listings show 16 points and compression terminals. This is exact-model support for the website identity, but an offered item's condition and revision must still be confirmed from its physical label. The FTA is not the signal-processing IOP.
Honeywell lists MU-TAMT03 as the local cold-junction-reference thermocouple FTA and separately names MU-TAMT13 for remote CJR. The differing reference arrangements should not be merged in purchasing or installation descriptions. Document the installed temperature reference, actual thermocouple types, field terminals and configuration before replacement. Do not infer a universal sensor accuracy or measurement range from the FTA model alone.
The manufacturer diagram connects the thermocouple FTA to MU-PLAM02 through the separate MU-TLPA02 adapter. Honeywell says LLMux assemblies are not compatible with RHMUX assemblies. Match the installed adapter, IOP, cable, cabinet and CE requirement along with the FTA. After approved installation, verify each input and diagnostic indication using the plant's controlled measurement test procedure.
