Honeywell 51305890-175 Low Level Multiplexer Thermocouple Digital Analog Module

Honeywell 51305890-175 Low Level Multiplexer Thermocouple Digital Analog Module

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Designed for high-accuracy temperature measurement, the Honeywell 51305890-175 is a 16-channel thermocouple FTA (Field Termination Assembly) that ensures reliable signal conditioning in industrial environments. Featuring solid-state technology, this CE-compliant module eliminates mercury-wetted relays while offering enhanced diagnostics, fast open thermocouple detection (<1 sec), and improved loop resistance for longer thermocouple wire runs. Its compression terminals provide secure connections, and the conformal coating protects against harsh conditions.

This Low-Level Multiplexer (LLMUX2 FTA) includes individual A/D conversion per channel, ensuring precise readings without crosstalk. It supports local Cold Junction Reference (CJR) and is optimized for use with CE-compliant LLMux Power Adapters (MU-TALP02 / MC-TALP02). Compatible with the 51304362-150 LLMux IOP (32-channel), it allows flexible integration into TDC 3000 and other Honeywell control systems.

Available in CE-compliant (ending in -175) and non-CE versions, this FTA is ideal for industries requiring high-density temperature monitoring, such as oil & gas, power plants, and chemical processing. The compression terminal design (Size B – 12 inches / 307 mm) ensures durability, while onboard diagnostics simplify maintenance.

For optimal performance, pair this FTA with a CE-compliant LLMux Power Adapter (51309204-125/175). Whether upgrading legacy systems or deploying new installations, the 51305890-175 delivers enhanced reliability, faster fault detection, and longer wiring flexibility—making it a robust choice for critical temperature monitoring applications.