Honeywell MC-TDPR02 51304425-175 - Image 1

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Honeywell MC-TDPR02 51304425-175

Product Name:

Honeywell Experion PKS Series C RTD / Resistance Input Module (TDPR — Platinum RTD Input)

Product Description:

A high-accuracy RTD (Resistance Temperature Detector) input module for Series C I/O racks, accepting 2-, 3-, or 4-wire Pt100/Pt200/Pt500/Pt1000 inputs for precise temperature measurement.

Category: Honeywell

Description

Technical Specifications:

Part Number: 51304425-175 (MC-TDPR02)
Channels: Typically 8 RTD inputs (differential)
Sensor Types: Pt100 (α=385 or 392), Pt200, Pt500, Pt1000; Ni120 optional
Wiring Configurations: 2-, 3-, 4-wire (software-selectable; 3- & 4-wire recommended)
Measurement Range: -200 °C to +850 °C (Pt100)
Accuracy: ± 0.1 °C typical (with 3-/4-wire Pt100 @ 0–100 °C)
Excitation Current: < 0.5 mA (to minimize self-heating)
Resolution: 16-bit A/D
Isolation: 500 VAC channel-to-backplane
Lead Resistance Compensation: Automatic in 3-/4-wire mode
Operating Temp: 0 °C to +60 °C
Diagnostics: Sensor open / short detection

Features:

Lead-wire resistance compensation eliminates error in 3-/4-wire mode
Per-channel linearization per IEC 751(DIN 43760)
High-noise-rejection digital filtering
Hot-swappable with LED diagnostics

Applications: Tank temperature, reactor jacket temp, bearing temp monitoring, HVAC/utility skid temperature in DCS.

Construction: Precision constant-current source, instrumentation amp, 16-bit ADC, gold-backplane connector, conformal coat option.

Working Principle: Module sources small constant current through RTD leads → measures voltage drop → calculates resistance → applies Callendar-Van Dusen equation → outputs temperature in engineering units to controller.

Installation & Precautions:

Use 3- or 4-wire RTD cabling for best accuracy; keep all leads same length/gauge.
Twisted-pair + shield; ground shield at FTA.
Do NOT mix RTD and TC on same module.
Select correct RTD type (α coefficient) and wiring in configuration software.
Check for isothermal termination at FTA block to avoid thermal EMF errors.

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