Parameter Specifications

1. Part Number: 4D33676G04

2. Manufacturer: Emerson Westinghouse

3. Compatible System: Common Q Class 1E Safety Instrument & Control DCS System

4. Matching Accessories: Analog input master acquisition boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply

5. PCB Material: Multi-layer thick copper zero-halogen V-0 flame-retardant high-Tg FR-4

6. Dimension & Weight: 118mm × 64.5mm × 19.7mm; Net Weight: 55g

7. Ambient Operating Conditions: Operating Temp -30℃ ~ +75℃, Storage Temp -50℃ ~ +130℃, Humidity 5%~98% RH non-condensing

8. Power Supply: DC 12V / DC 24V dual wide-range adaptive input

9. Input Channels: 16 fully independent galvanic isolated analog input channels

10. Supported Signal Range: 4–20mA DC current signal, 0–10V DC voltage signal

11. Isolation Index: Single channel isolation withstand voltage 2200V AC; Dielectric withstand 2200V AC for 60s; Insulation resistance ≥1500MΩ @500VDC

12. EMC Anti-interference: Power frequency interference attenuation ≥55dB, complies with IEC 61000-6-2 industrial EMC standard

13. Protection & Intelligent Diagnosis: Per-channel precision constant current limiting protection, bidirectional ultra-high-energy surge absorption, reverse polarity lockout, microsecond-level open/short-circuit instant detection, real-time fault identification, microsecond high-precision timestamp fault upload, fault transient waveform full capture, permanent non-volatile historical fault storage

14. Mechanical Reliability: Continuous vibration resistance 12g (10–150Hz); Shock resistance 30g pulse, 11ms duration

15. Core Feature: Single module hot swappable under energized rack

16. Certifications: CE, UL508, IEC60204-1, NRC Class 1E nuclear safety qualification

17. Aging Test Standard: 96-hour full-load high-low temperature cyclic aging test plus thermal cycle fatigue durability test

18. Design Service Life: ≥150,000 hours of 24/7 uninterrupted continuous operation

19. Warranty Period: 12-month global unified warranty for original and factory refurbished modules

Application Fields

1. Nuclear power plant Common Q Class 1E safety I&C racks: Ultra-high isolation high-precision analog signal acquisition terminal for reactor auxiliary cabinet critical flow, pressure, liquid level and temperature transmitters

2. AP1000 nuclear Post-Accident Monitoring System (PAMS): Top-tier reinforced anti-interference isolation signal conversion board for containment core process analog transmitters

3. Thermal power & hydropower station main control systems: High-reliability precision analog input module for boiler main steam pressure, feedwater flow and drum water level critical transmitters

4. High-risk explosion-proof petrochemical DCS distributed control system: Premium high-stability wiring card for core reactor pressure, main pipeline flow and storage tank liquid level analog transmitters

5. Offshore oil & gas explosion-proof automation racks: Anti-vibration ultra-precise signal isolation interface for wellhead primary pressure, crude oil pipeline flow and medium temperature transmitters

6. Large diesel generator safety sequential control cabinets: Analog input subcard for unit lubricating oil pressure, cooling water temperature and fuel flow critical transmitters

7. Municipal large-scale water treatment safety interlock DCS systems: High-performance isolation signal terminal for main pipeline flow, sedimentation tank liquid level and water pressure measurement transmitters

8. Metallurgy & cement kiln production lines: Heavy-duty precision analog acquisition module for kiln internal pressure, flue gas flow and raw material bin level industrial transmitters