MC-TAMT04 51305890-175
16-Channel LLMUX2 Thermocouple FTA · LLMUX2 Thermocouple Field Termination Assembly
Lifecycle note: Use the unit nameplate and current Honeywell documentation as final references before approving a replacement.
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+86 1535940827516-Channel LLMUX2 Thermocouple FTA - Honeywell TDC 3000 / TPS Process Manager I/O
Honeywell MC-TAMT04 51305890-175 is a sixteen-channel LLMUX2 thermocouple field termination assembly with local cold-junction reference. It provides the field-wiring interface between thermocouples and the approved second-generation low-level multiplexer I/O Processor.
The assembly uses compression terminals and a single-IOP arrangement. Honeywell technical documentation identifies the conformally coated CE part with four 8-pin field connectors and one 6-pin interface connector.
Replacement engineering must preserve thermocouple type, polarity, compensation wire, CJR placement, cable identity, terminal allocation and channel database. Validate cold-junction behavior and every configured input after installation.
| Manufacturer | Honeywell |
|---|---|
| Complete model | MC-TAMT04 51305890-175 |
| Product type | LLMUX2 Thermocouple Field Termination Assembly |
| System family | Honeywell TDC 3000 / TPS Process Manager I/O |
| Model code | MC-TAMT04 |
| Part number | 51305890-175 |
| FTA type | LLMUX2 thermocouple |
| Input channels | 16 |
| Cold-junction reference | Local CJR |
| Terminal type | Compression |
| IOP arrangement | Single IOP |
| Part status | CE-compliant part number |
| Board protection | Conformally coated MC assembly |
| Field connectors | Four 8-pin compression connectors |
| Interface connector | One 6-pin connector |
Honeywell MC-TAMT04 51305890-175 terminates sixteen thermocouple circuits and routes their low-level signals to the compatible multiplexer I/O Processor; the installed sensor types, cable and channel configuration must match the assembly.
Honeywell MC-TAMT04 51305890-175 uses a local cold-junction reference in the LLMUX2 arrangement, so CJR hardware, connector seating and ambient-temperature conditions must be verified during commissioning.
Confirm thermocouple type, polarity, extension-wire material, shield grounding, terminal allocation and the absence of unintended copper junctions before fitting Honeywell MC-TAMT04 51305890-175.
An RTD termination assembly cannot be substituted for Honeywell MC-TAMT04 51305890-175 merely because the connector or mounting size appears similar; sensor interface, compensation method, cable and IOP compatibility are different.
Honeywell MC-TAMT04 51305890-175 must match the approved low-level multiplexer IOP, interface cable, field connectors, cabinet mounting and engineering database used by the installed Process Manager system.
Commission Honeywell MC-TAMT04 51305890-175 by checking cold-junction behavior, polarity, open-sensor diagnostics and each configured channel with an approved millivolt or temperature reference.
Provide the complete Honeywell MC-TAMT04 51305890-175 nameplate, hardware revision, thermocouple types, companion IOP, cable, connector arrangement, quantity and destination.
Send the complete Honeywell model, part number, revision, quantity, destination and nameplate photo. Identification details will be verified before availability and lead time are confirmed.
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