Model Explanation

51309218‑175: Honeywell Material Number (51309218 = RTD-specific LLMUX series; 175 = High-density wide-temperature enhanced version)

MC-TAMR03: Module Model

MC = Module Card (Enhanced I/O Board)

TAMR = Thermocouple Analog Multiplexer RTD (Thermocouple Analog Multiplexer for RTD)

03 = Hardware Version (Rev.03, Wide-temperature High-density Version) Technical Specifications

Channel quantity: 16 differential inputs (only RTD, no TC/mV)

Signal type: PT100/PT1000 (3-wire / 4-wire configuration)

Measurement range: -200°C ~ +850°C

Resolution: 16 bits (high-precision ADC)

Accuracy: ±0.1°C (at 25°C)

Isolation strength: 1500 V RMS (channel - system isolation)

Input impedance: >100 kΩ (RTD-specific)

Cold junction compensation (CJR): None (pure RTD)

Power supply: 24 VDC (±10%), UCN backplane power supply

Operating temperature: -40°C ~ +75°C (wide temperature industrial grade)

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Size: 220 × 150 × 30 mm

Weight: 0.78 kg

Certifications: CE, UL, CSA, RoHS

Interfaces and Communications

Field side: 16 gold-plated screw terminals (3/4-wire RTD-specific)

System side: High-density UCN flat cable (connected to LLMUX IOP)

Status indication: PWR (green), READY (green), FAULT (red) LEDs

Configuration: DCS software configuration for RTD type, wiring, range, filtering

Hot-swappable: Supported (on-line replacement without system interruption) Core function

16-channel pure RTD high-precision acquisition: 3/4 line compatibility, accuracy ±0.1°C, suppresses lead resistance error

Wide temperature range with high stability: -40°C to +75°C, suitable for low/ high-temperature industrial environments

Enhanced isolation for anti-interference: 1500 V RMS isolation, resistant to EMI/RFI and ground loop interference

Comprehensive fault diagnosis: RTD open circuit / short circuit, over-range, power failure detection

High-density space-saving: 16 channels per card, compact cabinet layout, lower cost Applicable scenarios

Industry: Petrochemicals, Electricity, Metallurgy, Pharmaceuticals, Energy Management

Applications: 16-channel RTD high-precision temperature monitoring, extreme environment (low/ high temperature) measurement points, pure temperature-intensive loop

Compatible systems: Experion PKS (C200/C300), TDC 3000, TPS (UCN LLMUX IOP companion)