Parameter Specifications

1. Part Number: 4D33945G01

2. Manufacturer: Emerson Westinghouse

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

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

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

6. Dimension & Weight: 145mm × 66mm × 20.6mm; Net weight: 63g

7. Ambient Operating Envelope

   Operating Temp: -25℃ ~ +70℃

   Storage Temp: -50℃ ~ +125℃

   Humidity: 5%–95% RH, non-condensing

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

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

10. Jumper configurable signal types

    • 4–20mA DC two-wire loop current (passive field transmitters)

    • 0–10V DC voltage signal (active voltage output transmitters)

      Measurement precision: ±0.05% FS full scale

      4–20mA max allowable loop resistance: 750Ω

      0–10V minimum load impedance: ≥10kΩ

11. Isolation Performance

    Channel-to-backplane isolation: 1500V AC

    Dielectric withstand: 2000V AC / 60s

    Insulation resistance: ≥1200MΩ @ 500VDC

12. EMC Anti-interference Performance

    Power frequency interference attenuation ≥40dB, fully compliant with IEC 61000-6-2 industrial EMC standard

13. Protection & Intelligent Diagnosis Functions

    Per-channel precise constant current limiting protection

    Bidirectional TVS high-energy surge absorption circuit

    Reverse wiring polarity lockout anti-damage protection

    Real-time full fault detection: analog loop open-circuit, short-circuit, signal over-range, abnormal load impedance, transmitter power loss

    Time-stamped fault status + channel number + signal type identification uploaded to master controller

14. Mechanical Reliability

    Continuous vibration resistance: 8g (10–150Hz)

    Shock resistance: 25g pulse, duration 11ms

15. Core Feature: Single module hot swappable under energized rack without interrupting safety analog parameter monitoring loops

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

17. Aging Validation Standard: 72-hour full-load high-low temperature cyclic aging test + multi-point analog precision calibration screening

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

19. Warranty Period: 12-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

   Universal multi-point analog acquisition terminal for reactor auxiliary safety cabinets, centralized collection of primary coolant pressure/flow transmitters, containment differential pressure, liquid level and radiation monitoring analog signals.

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

   Isolated multi-channel universal analog input board for containment passive cooling medium pressure/flow sensors, containment atmosphere pressure/humidity transmitters and post-accident safety parameter measuring points.

3. Thermal & Hydropower Station Main Control Systems

   High-density universal analog input module for boiler water level, steam pressure, feedwater flow and furnace differential pressure process transmitters.

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

   Universal analog wiring terminal card for reactor medium pressure, storage tank liquid level and pipeline flow transmitters in hazardous explosion zones.

5. Offshore Oil & Gas Explosion-Proof Automation Racks

   Isolation analog acquisition interface for wellhead manifold pressure, separator liquid level and crude pipeline flow analog transmitters.

6. Large Diesel Generator Safety Sequential Control Cabinets

   Multi-point analog input subcard for genset lube oil pressure, cooling water temperature/flow and exhaust backpressure transmitters.

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

   Universal isolation analog terminal for pipeline flow, tank liquid level and disinfection reagent concentration monitoring transmitters.

8. Metallurgy & Cement Kiln Production Lines

   Dedicated analog acquisition module for kiln gas pressure, raw material feeding flow and cooling water pressure analog probes.

Series Unified Iteration Rule (Consistent with full Common Q I/O board product line)

• G01: Standard basic industrial version, 1500V isolation, 40dB EMI attenuation, basic loop fault alarm, no waveform storage

• G02: Reinforced industrial enhanced version, 1800V isolation, 45dB attenuation, optimized signal drift fast diagnosis

• G03: Gen3 nuclear high-isolation grade, 2000V isolation, 50dB attenuation, fault waveform capture + non-volatile historical fault storage

• G04: Gen4 flagship ultra-high isolation, 2200V isolation, 55dB attenuation, nanosecond high-precision timestamp, expanded operating temperature range

• G05: Gen5 premium seismic qualified grade, 2500V isolation, 60dB attenuation, anti-loose locking terminal structure, full IEEE 344 seismic certification, extended service life & warranty

• G06: Gen6 extreme super-isolation flagship, 3000V isolation, 65dB attenuation, nuclear anti-radiation component screening, double anti-loose terminals, 15-year power-off fault data retention, full seismic & radiation dual certification

Product Positioning Distinction

• 4D33888 series: Mixed DI/AI/RTD multi-function universal card

• 4D33945 series: Pure analog dedicated card (4–20mA / 0–10V), higher analog sampling precision and channel density than mixed-signal boards

• 4D33913 series: Analog output AO regulating drive card