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4D33710G02 Upgraded Reinforced 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS

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4D33710G02 Upgraded Reinforced 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS
June 10, 2026

4D33710G02 Upgraded Reinforced 16-Channel Isolated Analog Output Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS

NRC Class 1E nuclear safety certified, the 4D33710G02 is an upgraded reinforced analog output terminal board optimized based on standard version 4D33710G01 for Emerson Westinghouse Common Q safety I&C platform. It converts digital control instructions from master controllers into standard 4–20mA DC and 0–10V DC analog signals to drive field regulating valves, frequency converters and actuator positioners. Each channel is equipped with 1800V reinforced galvanic isolation and high-order multi-stage LC EMI filters to effectively suppress power frequency noise, ground loop potential drift and lightning surge transient interference. Adopting thickened gold-plated backplane connectors and corrosion-resistant nickel-alloy screw terminals, this card integrates full-channel high-speed fault diagnosis, multi-layer comprehensive circuit protection and hot-swap function, which supports maintenance without interrupting other analog control loops and delivers stable high-precision analog drive performance under harsh industrial environments with high temperature, high humidity, heavy dust and continuous vibration.

Description

Parameter Specifications

  1. Part Number: 4D33710G02

  2. Manufacturer: Emerson Westinghouse

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

  4. Matching Parts: Analog output master control boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply

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

  6. Dimension & Weight: 118mm × 64.5mm × 19.7mm; Net weight: 54g

  7. Ambient Conditions: Operating temperature -25℃ ~ +70℃; Storage temperature -50℃ ~ +125℃; Humidity 5%–95% RH, non-condensing

  8. Power Input: DC 12V / DC 24V dual adaptive power supply

  9. Output Channels: 16 fully independent galvanic isolated analog output channels

  10. Standard Output Signal: 4–20mA DC current signal, 0–10V DC voltage signal

  11. Isolation Performance: 1800V AC isolation voltage per channel; 2000V AC dielectric withstand for 60s; Insulation resistance ≥1200MΩ @ 500VDC

  12. EMC Index: Power frequency interference attenuation ≥45dB, compliant with IEC 61000-6-2 industrial EMC standard

  13. Protection & Diagnosis: Per-channel precision current-limiting protection, bidirectional high-energy surge absorption, reverse polarity lockout, real-time open-circuit/short-circuit fault detection, high-precision timestamp fault code upload to master controller

  14. Mechanical Performance: Continuous vibration resistance 8g (10–150Hz); Shock resistance 25g pulse, duration 11ms

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

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

  17. Aging Test Standard: 72-hour full-load high-low temperature cyclic aging test

  18. Design Service Life: ≥100,000 hours of 24/7 uninterrupted continuous operation

  19. Warranty: 12-month global unified warranty

Application Fields

  1. Nuclear power plant Common Q Class 1E safety I&C racks: Reinforced isolation analog drive terminal for auxiliary cabinet regulating valves, cooling water flow actuators and air damper positioners

  2. AP1000 nuclear Post-Accident Monitoring System (PAMS): High-stability isolation analog output conversion board for auxiliary containment regulating actuators and vent control valves

  3. Thermal & hydropower station control systems: Upgraded analog output module for boiler feedwater control valves, combustion air damper actuators and turbine governor positioners

  4. Explosion-proof petrochemical DCS distributed control system: Anti-interference drive wiring card for reactor pressure regulating valves, pipeline flow control actuators and storage tank liquid level adjustment valves

  5. Offshore oil & gas explosion-proof automation racks: Signal isolation drive interface for wellhead choke valves, medium flow control actuators and heating regulator positioners

  6. Large diesel generator safety sequential control cabinets: Analog output subcard for fuel adjustment actuators, cooling fan frequency converters and exhaust gas damper regulators

  7. Municipal large-scale water treatment safety interlock DCS: Reinforced isolation drive terminal for pipeline inlet flow control valves, chemical dosing pump regulators and tank outlet water level adjustment actuators

  8. Metallurgy and cement kiln production lines: High-precision analog drive module for kiln air-fuel ratio regulating valves, raw material feeding actuators and flue gas exhaust dampers


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