Model Interpretation

51309202-125: Honeywell Material Number

MU-TAMR03: Module Model

MU = Module Unit (FTA Series)

TAMR = Temperature Analog Multiplexer RTD (Temperature Analog Multiplexer - RTD Type)

03 = Hardware Version and Channel Configuration (optimized for low drift, enhanced common-mode suppression) Technical Specifications

Channel: 16 low-level analog inputs (configurable RTD / thermocouple / mV)

Signal types:

RTD: Pt100/Pt1000 (3-wire / 4-wire)

Thermocouple: K/J/T/E/R/S/B types

mV: ±50 mV, ±100 mV, ±500 mV

Accuracy: ±0.05% FS (25°C), temperature drift ≤ 10 ppm/°C

Isolation: 1500 V RMS (channel - bus to bus, electrical isolation)

Input impedance: RTD ≥ 1 MΩ; thermocouple / mV ≥ 10 MΩ

Sampling rate: 10 Hz per channel (multiplexed scanning)

Resolution: 16 bits

Power supply: Backplane 24 VDC (±10%)

Operating temperature: -20°C ~ +70°C

Hot-swappable: Supported

Fault detection: Open circuit / short circuit / sensor failure (system diagnosis)

Common mode suppression: ≥ 100 dB (50/60 Hz)

Interface and status

System side: High-density flat cable connects UCN controller I/O module

Field side: Removable gold-plated screw terminals (compatible with low-level signals, reduces contact resistance)

Indicators: Module OK/Fault indicator, power indicator

Configuration: DCS workstation software configures signal type, range, filtering

Core functions

High-precision acquisition of weak signals: Designed for RTD / thermocouple / mV level signals, low temperature drift, high anti-interference

Multi-sensor compatibility: Supports mainstream RTD, thermocouples and mV sensors, suitable for various temperature / micro-voltage measurements

Optimized I/O multiplexing: Single module 16 inputs, reduces controller I/O points, lowers system cost

Strong isolation and anti-interference: 1500 V RMS isolation, high common mode suppression, suppresses ground loops and industrial noise

Online replacement (hot-swappable): Supports maintenance without downtime, ensures continuous production

Sensor-level diagnosis: Real-time detection of open circuit / short circuit / sensor failure, quickly locates problems Applicable scenarios

Industry: Oil and gas, petrochemicals, power generation (boilers / steam turbines), metallurgy, heat treatment, chemical industry

Applications: High-precision temperature measurement, collection of tiny voltage signals, connection of RTD / thermocouple sensors, low-level circuits requiring strong isolation

Compatibility: Experion PKS (C200/C300), TDC 3000, TPS