Honeywell 51401573-100 (TDC 3000 Thermocouple Multiplexer Module)
June 01, 2026

Honeywell 51401573-100 (TDC 3000 Thermocouple Multiplexer Module)

Product Introduction 51401573-100 is a high-precision thermocouple input module in the Honeywell TDC 3000/TPS system. It is specifically designed to collect weak thermocouple (TC) low-level signals, featuring signal amplification, filtering, cold junction compensation, and analog-to-digital conversion functions. It is the core board card for industrial temperature measurement.

Description

Model Explanation

51401573-100: Standard Model

51401573: TDC 3000 Low-Level Analog Multiplexer Series

100: Hardware Version (Rev B, Motherboard Component Number)

Sub-board Model: 51401564 (Sub-board, HW Rev G, FW Rev E)

Module Type: Thermocouple (TC) Input / Multiplexer

Applicable Systems: Honeywell TDC 3000, TPS, Experion PKS (LCN Network) Technical Specifications

Input type: J, K, T, E, R, S, B type thermocouples

Channel quantity: 16 differential inputs

Input range: ±100 mV (low level signal)

Resolution: 16 bits

Accuracy: ±0.05% FS (25°C)

Cold junction compensation: Built-in precise RTD, automatic compensation

Power supply: 24 VDC (±10%), approximately 200 mA

Version: Mainboard Rev B, Sub-board HW Rev G, FW Rev E

Operating temperature: 0°C ~ +60°C

Storage temperature: -40°C ~ +85°C

Weight: Approximately 0.22 kg

Certifications: CE, UL, CSA, RoHS

Interface and Configuration

Backplane interface: 96-pin finger contacts (compatible with TDC 3000 I/O backplane)

Field interface: 16-channel thermocouple connection terminals (differential input)

Board-mounted connection: Interconnected with sub-board 51401564 to achieve signal processing

Status indication: LED (power, operation, fault, communication)

Configuration method: DIP switches (channel enable, thermocouple type, address)

Core functions

Low-level signal acquisition: Precise amplification of weak millivolt-level thermocouple signals

Multiplexing: 16-channel time-sharing acquisition, saving system resources

Cold junction compensation: Automatic compensation for the influence of ambient temperature on measurement accuracy

Signal conditioning: Filtering, isolation, linearization processing, suppression of interference

Analog-to-digital conversion: 16-bit high-precision ADC, digital signal uploaded to the system after conversion

Fault diagnosis: Open circuit / short circuit detection, over-limit alarm, communication self-check Application scenario

System: Honeywell TDC 3000, TPS, Experion PKS

Industry: Petrochemicals, Electricity, Metallurgy, Heat Treatment, Pharmaceuticals, Glass

Application: Reactors, heating furnaces, boilers, steam turbines, etc. for temperature monitoring

Installation: Standard I/O rack of TDC 3000 (such as 5-slot / 15-slot backplane)

Compatible modules

Backplane: 51401381-100 (5-slot), 51401547-100 (15-slot)

Sub-board: 51401564 (HW Rev G, FW Rev E)

Controller: 51400978-100, 51401570-100

Communication card: 51401551-300/301 (LCN interface)


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