Honeywell 51204174175 Product Detailed Description

Product Model: 51204174175 (Standard Number: 51204174-175)

Brand: Honeywell

Product Category: UCN Advanced Analog Input FTA Module (HLAI FTA, Enhanced Non-Redundant Wide Temperature Three-Defense Version)

Applicable Systems: Honeywell TDC 3000 / TPS / UCN Distributed Control System (DCS)

I. Product Overview

51204174175 is an enhanced non-redundant, high-precision, wide-temperature, three-defense input module in the 51204174 advanced analog input series of the Honeywell UCN system. It retains the single-channel non-redundant design of the basic version (51204174150), but comprehensively enhances accuracy, signal acquisition stability, electrical isolation, anti-interference, and extreme environment adaptability, specifically designed for non-redundant but harsh operating conditions and extremely high precision requirements in industrial scenarios, suitable for complex field environments such as high temperature, high humidity, high corrosion, high electromagnetic interference, and long-distance signal transmission.

II. Core Specification Parameters

1. Signal Specifications

Input Type: Standard High-Level Analog Quantity (4–20 mA DC, Two-Wire/Four-Wire Transmitter Compatible)

Channels: 8 Independent Input Channels (Non-Redundant, Single Channel Operation)

Accuracy: ±0.075% Full Scale (FS) @ 25°C (Higher than Version 150 ±0.1% FS)

Resolution: 16-bit A/D Conversion (Higher than Basic Version 12-bit)

Input Impedance: ≤ 50 Ω (Low Loss, Suitable for Long-Distance Transmission)

Electrical Isolation: Channel - System ≥ 2000 V AC (Higher than Standard Version 1500 V AC)

Common Mode Suppression Ratio: > 110 dB (50/60 Hz)

Sampling Rate: 10 Times/Second/Channel

Input Protection: Overcurrent (±30 mA), Overvoltage (±30 V), Reverse Connection, Surge, Short Circuit Protection

2. Electrical Parameters

Operating Power Supply: 24 V DC (Backplane Single-Path Power Supply, Non-Redundant)

Power Consumption: ≤ 3.5 W

Surge Suppression: Built-in TVS Diode, Compliant with IEC 61000-4-5 Standard

Grounding: Independent Safety Grounding, Anti-Interference Design

3. Environmental Parameters (Enhanced Version)

Operating Temperature: -40°C ～ +75°C (Wide Temperature Expansion, Higher than Standard Version -20°C～+60°C)

Storage Temperature: -55°C ～ +85°C

Humidity: 5% ～ 95% RH (Non-condensation, Corrosion Resistant)

Protection: PCB Board Three-Defense Coating (Anti-Damp, Anti-Salt Fog, Anti-Mold)

Vibration / Impact: IEC 60068-2-6 (Vibration), IEC 60068-2-27 (Impact)

EMC: FCC Part 15 Class A, Enhanced Anti-Radio Frequency Interference

4. Physical Characteristics

Size: Standard UCN Card (300 mm × 100 mm × 20 mm)

Weight: Approximately 0.48 kg

Installation: UCN Rack, Hot Swap

Interface: Front Spring-Type Terminal (Temperature Resistant) + Backplane Bus Interface

5. Certification

Certification: No CE/RoHS (Not for EU Specific)

Compliance: FCC Class A, UL Standards, Industrial Class 4 Electromagnetic Compatibility

III. Functional Characteristics (Enhanced Core Advantages)

1. Non-redundant High Performance Architecture

Non-redundant Design: Single Channel Independent Operation, No Master-Slave Switching (Same as Version 150) High-precision acquisition: ±0.075% FS, 16-bit resolution, with smaller acquisition error and higher stability

High isolation protection: 2000 V AC isolation, effectively suppressing strong on-site electromagnetic interference

Status indication: PWR (power), RUN (operation), FAULT (fault), CHx (channel abnormality) LEDs

2. Diagnosis and Monitoring (Enhanced Version)

Channel diagnosis: Supports open circuit, short circuit, over-limit, and acquisition drift monitoring

Online calibration: Supports online system accuracy calibration without downtime

Fault alarm: Active alarm of abnormal states to the system controller

No STI self-test: Different from the redundant version (100/125), there is no complete system self-diagnosis

3. Compatibility and Interchangeability

System compatibility: Fully compatible with TDC 3000 / TPS / UCN

Hardware interchange: Can directly replace 51204174100/125/150, no need to reroute

Non-redundant: Hardware is fixed non-redundantly, cannot be upgraded to the redundant version

4. Adaptability to Harsh Operating Conditions

Wide temperature operation: -40°C to +75°C, suitable for extreme temperature environments

Three-proof coating: PCB moisture-proof, salt fog-proof, corrosion-proof, specially designed for marine / chemical / metallurgical applications

Strong anti-interference: High isolation, high common-mode suppression, suitable for high-interference areas such as variable frequency, large-power motors

Five, Comparison of 51204174 Series Models Table

Model Version Retention CE/RoHS Precision Isolation Wide Temperature / Triple Protection Channels Applicable Scenarios

51204174-100 Standard Redundancy ✅ Dual Channel ❌ None ±0.075% FS 1500 V AC Standard 8 Channels Globally Critical Interlock Acquisition

51204174-125 CE Redundancy ✅ Dual Channel ✅ CE ±0.075% FS 1500 V AC Standard 8 Channels EU Export Critical Acquisition

51204174-150 Basic Non-Redundancy ❌ None ❌ None ±0.1% FS 1500 V AC Standard 8 Channels Economic Type Conventional Input

51204174-175 Enhanced Non-Redundancy ❌ None ❌ None ±0.075% FS 2000 V AC ✅ Wide Temperature + Triple Protection 8 Channels Demanding Operating Conditions High Precision Input

V. Typical Applications

Offshore Platform: Signal Acquisition for Oil and Gas Process Transmitters (Salt Spray, High Humidity)

Chemical / Metallurgy: Analog Input for High Temperature, High Corrosion Sections (Triple Protection Coating)

Long Distance Transmission: Acquisition of 4–20 mA Signals from Peripheral Areas of the Factory and Remote Transmitters

High Interference Scenarios: Stable Acquisition Near Frequency Conversion Equipment, High Power Motors

Extreme Temperature: Non-Interlock Control Signal Acquisition Around Cold Storage, High Temperature Kilns

High Precision Monitoring: Closed-loop Control Acquisition of Precise Flow, Pressure, and Temperature

VI. Key Points for Use and Maintenance

Installation: Vertical installation in standard cabinets, ensuring ventilation (wide temperature design requires no additional temperature control)

Connection: Single-ended grounding of shielded cables, distinguish between positive and negative signal poles

Calibration: It is recommended to calibrate the accuracy every 1–2 years (higher calibration requirements for high-precision versions)

Faults: Non-redundant design, faults require offline replacement, no automatic switching

VII. Product Status

Type: DCS System I/O Input Module (Spares)

Production Status:停产 (legacy spares)

Supply： Original Inventory， Refurbished， Second-hand Spares Predominantly

Replacement： Upgrade to the new Experion PKS C300 Input Module

VIII. Model Code Interpretation (51204174-175)

512： Honeywell DCS Spare Prefix

04174： HLAI Advanced Analog Input FTA Series

-175： Enhanced Non-Redundant， High Precision， High Isolation， Wide Temperature Triple Protection Version Identifier