The Honeywell MC-TAMR04 (Order Code: 51305907-175) is a Field Termination Assembly (FTA) designed for use within the Honeywell Distributed Control System (DCS) environment. This unit functions as a Low Level Analog Input Multiplexer (LLMUX), specifically engineered to interface thermocouple signals into the Universal Control Network (UCN). It provides high-precision signal conditioning and multiplexing, allowing for efficient integration of low-level sensor data into the broader control architecture.
Features
Designed for thermocouple signal processing and low-level analog input multiplexing.
High-resolution 24-bit ADC for accurate signal conversion.
High common-mode rejection ratio to ensure signal integrity in electrically noisy industrial environments.
High input impedance to minimize loading effects on sensitive sensor loops.
Standardized FTA design for reliable termination and signal routing within Honeywell DCS cabinets.
Technical Specifications
Parameter
Specification
Model Number
MC-TAMR04
Part Number
51305907-175
Resolution
24-bit ADC
Accuracy
+/- 0.02% of reading +/- 1 uV
Common Mode Rejection
>140 dB @ 50/60 Hz
Input Impedance
>10 M-Ohm
Power Consumption
15W typical, 20W maximum
Installation Guidelines
Ensure the system power is disconnected before installing or removing the module from the cabinet.
Mount the FTA in a clean, dry environment within the specified operating temperature range.
Use shielded twisted-pair cabling for all thermocouple inputs to maintain signal integrity and reduce EMI/RFI susceptibility.
Ensure proper grounding of the FTA chassis to the cabinet ground bus to prevent ground loops and noise interference.
Verify that all terminal connections are secure and that wire ferrules are used where appropriate to prevent loose strands.
Follow standard ESD (Electrostatic Discharge) handling procedures when touching internal components or connectors.
FAQ
What is the primary function of the MC-TAMR04?
The MC-TAMR04 is a Low Level Analog Input Multiplexer (LLMUX) FTA used to collect and multiplex thermocouple signals for the Honeywell UCN, enabling the DCS to process low-level temperature inputs accurately.
Is this module still in production?
No, this specific model has been discontinued by the manufacturer. We provide these units as refurbished or surplus spare parts to support legacy system maintenance.
What is the input impedance of this module?
The module features an input impedance of greater than 10 M-Ohm, which is designed to minimize the impact on the measured thermocouple signal.
