Honeywell MC-TAMT03 Multiplexer Thermocouple Module

Product Overview

This multiplexer thermocouple module interfaces directly with temperature sensors in Honeywell TDC 3000 systems. It converts thermocouple millivolt signals into digital values for process monitoring and control. The MC-TAMT03 handles multiple temperature inputs through its built-in multiplexing architecture. Its high-accuracy design ensures precise temperature measurement across varied industrial environments. This module eliminates the need for external signal conditioners in thermocouple applications.

Technical Specifications

The MC-TAMT03 measures 27.9 cm in height, 17.8 cm in depth, and 2.5 cm in width. It weighs approximately 0.90 kg, including all terminal connectors and mounting hardware. This module draws 400 mA from the 24 VDC power supply under normal operating conditions. It provides eight differential thermocouple input channels with 16-bit resolution. The module accepts J, K, T, and E type thermocouple signals directly without external converters. Its temperature range spans from -200°C to +1372°C depending on the thermocouple type. The module includes automatic cold junction compensation for each channel. Its conversion time measures 120 ms for scanning all eight inputs sequentially. The unit provides 2500 VAC optical isolation between field wiring and the backplane. The front panel features LED indicators for power and per-channel status.

Signal Conditioning and Multiplexing Architecture

This module scans each thermocouple input sequentially using its internal multiplexing circuits. It applies digital linearization for accurate temperature readings across the full range. The MC-TAMT03 filters electrical noise to ensure stable measurement in industrial environments. Users can configure thermocouple types and engineering units through the system software. The module also performs continuous diagnostics for open-circuit detection.

Physical and Electrical Parameters

Installation and Configuration Steps

Install the MC-TAMT03 into any available slot within the TDC 3000 chassis. Secure the module using the retaining screws positioned at both ends. Connect thermocouple wires to the designated input channels with proper polarity. The module automatically initializes upon system power-up without manual configuration. Select thermocouple types and temperature units through the system software. Monitor channel status through front-panel LED indicators for normal operation.

Typical Applications

This module measures temperature in furnaces, kilns, and chemical reactors. It monitors thermal processes in refining, petrochemical, and power generation plants. The MC-TAMT03 supports heat treating, annealing, and drying operations across many industries. Its eight-channel density suits applications requiring multiple temperature measurements.