Parameter Specifications

1. Part Number: 4D33900G19

2. Manufacturer: Emerson Westinghouse

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

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

5. PCB Material: Multi-layer heavy copper halogen-free V-0 flame-retardant ultra-high-Tg FR-4 substrate

6. Dimension & Weight: 145mm × 66mm × 20.6mm; Net Weight: 64g

7. Ambient Operating Envelope

   Operating Temperature: -30℃ ~ +75℃

   Storage Temperature: -50℃ ~ +130℃

   Humidity: 5%~98% RH, non-condensing, anti-mold conformal coating

8. Power Supply: DC 12V / DC 24V ultra-wide adaptive input, three-stage full protection (reverse connection / overvoltage / undervoltage)

9. Input Channels: 16 fully independent galvanic isolated universal configurable channels

10. Jumper Selectable Signal Modes

    • DI: Passive dry contact discrete input (valve position feedback, safety limit switches, primary equipment interlock contacts, reactor trip protection switches)

    • AI: 4–20mA DC loop current / 0–10V DC voltage analog input (pressure, flow, liquid level, containment differential pressure transmitters)

    • RTD: 3-wire PT100 platinum resistance temperature detector

11. RTD Standard Measurement Range: -200℃ ~ +850℃

12. Isolation Index

    Single channel 2500V AC isolation withstand; 2500V AC dielectric strength test for 60s; Insulation resistance ≥2000MΩ @500VDC

13. EMC Anti-interference Performance

    Power frequency interference attenuation ≥60dB, fully compliant with IEC 61000-6-2, full series IEC 61000-4 industrial EMC standards + nuclear plant supplementary EMC requirements

14. Protection & Intelligent Diagnosis Functions

    • Dual threshold high-precision constant current limiting protection per channel

    • Three-stage cascaded bidirectional large-energy surge absorption circuit

    • Full misconnection anti-damage protection: reverse polarity, cross wiring, overvoltage, undervoltage

    • Sub-microsecond multi-fault real-time detection: DI contact open/short, AI loop break/short, RTD wire break/short, terminal loose contact, signal overload

    • Picosecond high-precision timestamp fault upload, built-in fault level classification, location marking and event sorting

    • Full high-resolution fault transient waveform capture + non-volatile historical fault storage, 10-year power-off data retention

15. Mechanical & Seismic Reliability

    Continuous vibration resistance 15g (10–150Hz); Shock resistance 35g pulse, 11ms duration; double anti-loose terminal locking structure; full IEEE 344 nuclear seismic qualification

16. Core Feature: Single module hot swappable under energized rack without interrupting any Class 1E safety measurement loops

17. Certifications: CE, UL508, IEC60204-1, full NRC Class 1E nuclear safety qualification, IEEE 344 seismic qualification

18. Aging & Validation Standard: 120-hour full-load high-low temperature cyclic aging test + thermal cycle fatigue verification + full electromagnetic stress screening + seismic vibration impact simulation test

19. Design Service Life: ≥180,000 hours of 24/7 unattended continuous operation

20. Warranty Period: 18-month global unified warranty for original factory modules and certified factory refurbished modules

Application Fields

1. Nuclear Power Plant Common Q Safety I&C Racks

   Premium seismic high-density mixed-signal integrated acquisition terminal for reactor core auxiliary cabinets and containment local safety racks, centralized acquisition of primary safety interlock dry contacts, containment critical process analog transmitters and main pump/pipeline PT100 temperature monitoring points to minimize cabinet slot occupation.

2. AP1000 Nuclear Post-Accident Monitoring System (PAMS)

   Seismic anti-interference universal signal conversion board for containment mixed measuring points including primary isolation valve feedback switches, accident cooling system pressure/flow transmitters and containment atmosphere PT100 temperature probes.

3. Thermal & Hydropower Station Main Control Systems

   High-reliability multi-purpose high-density input module for boiler primary auxiliary mixed measuring points: furnace safety interlock limit switches, steam/water pressure-flow analog transmitters and turbine/generator bearing RTD temperature sensors.

4. High-Risk Explosion-Proof Petrochemical DCS Distributed Control System

   Premium nuclear-grade integrated wiring card for reactor core zone mixed field points: emergency shutdown interlock contacts, reaction medium pressure/flow transmitters and high-temperature storage tank wall temperature detectors.

5. Offshore Oil & Gas Explosion-Proof Automation Racks

   Anti-vibration seismic universal signal acquisition interface for wellhead platform ESD valve feedback switches, crude pipeline pressure/flow transmitters and separator equipment PT100 temperature probes.

6. Large Diesel Generator Safety Sequential Control Cabinets

   Universal high-density input subcard integrating unit overspeed trip interlock switches, lubricating oil/coolant pressure/flow transmitters and engine main bearing temperature sensors.

7. Municipal Large-Scale Water Treatment Safety Interlock DCS Systems

   Seismic high-performance isolation measurement terminal for pipeline emergency gate interlock switches, main pipeline flow/pressure transmitters and large blower motor bearing temperature detectors.

8. Metallurgy & Cement Kiln Production Lines

   Heavy-duty high-temperature resistant mixed acquisition module for kiln safety door interlock contacts, high-temperature flue gas pressure/flow transmitters and kiln shell PT100 temperature sensors.

G19 Custom Version Core Differentiator vs Standard 4D33888 Series G01~G06

1. Part number independent 4D33900 series special custom model G19, dedicated to nuclear containment seismic harsh rack installation scenarios

2. Standard isolation upgraded to 2500V AC, insulation resistance ≥2000MΩ, sixth-order EMI filter with 60dB attenuation

3. Full IEEE 344 seismic certification, dual anti-loose terminal locking design, 15g vibration / 35g shock resistance

4. Sub-microsecond multi-dimensional fault diagnosis + high-resolution waveform capture, 10-year power-off fault log retention

5. Extended design service life up to 180,000 hours, 18-month extended factory warranty

6. Anti-mold conformal coating, optimized PCB anti-radiation material screening for near-containment equipment room deployment

7. Optimized backplane gold-plating thickness and terminal corrosion resistance for long-term high-humidity nuclear plant environments