1. Product Title

2. Product Brief Introduction

3. Parameter Specification Sheet

Basic Parameters

• Part Number: 4256A88G01

• Brand: Emerson / Westinghouse

• Product Type: Analog Input Daughter Card

• Applicable System: Common Q DCS Safety Instrument Control Platform

• PCB Substrate: High Tg FR-4, flame retardant V-0

• Surface Treatment: Hard gold plating for connector pins, green anti-oxidation solder mask

• Overall Dimensions: 116mm × 63mm × 18.5mm

• Net Weight: 47g

• Storage Temperature: -50℃ ~ +125℃

• Operating Temperature: -25℃ ~ +70℃

• Ambient Humidity: 5% ~ 95% RH, non-condensing

Electrical Performance

• Rated Working Power Supply: DC 12V / DC 24V dual power adaptive

• Supported Input Signals: 4–20mA DC current signal, 0–10V DC voltage signal

• Signal Channels: 8 independent analog input channels

• Measurement Accuracy: ±0.1% FS

• Single Channel Sampling Rate: 12Hz

• Insulation Resistance: ≥1200MΩ under 500VDC

• Dielectric Withstand Voltage: AC 2000V, withstand for 60 seconds

• EMC Compliance: IEC 61000-6-2 industrial anti-interference standard, nuclear safety EMC certification

• Protection Functions: Overvoltage protection, reverse power protection, channel short-circuit self-protection

• Hot Swap Function: Single module hot plug supported; field circuit power-off required for complete disassembly

Mechanical & Installation Index

• Mounting Method: Plug-in docking with Common Q main rack carrier board

• Bus Interface: Special gold finger connector for Common Q backplane

• Vibration Resistance: Continuous vibration resistance 8g, frequency range 10–150Hz

• Shock Resistance: 25g pulse impact resistance, pulse duration 11ms

Certification & Service Standard

• Safety Grade: Nuclear Class 1E qualified component

• Certifications: CE, UL508, IEC60204-1

• Pre-delivery Test: 72 hours high-low temperature cycle aging test

• Design Service Life: ≥100,000 hours of continuous stable operation

• Warranty: 12-month warranty for new and refurbished modules

4. Application Fields

1. Nuclear power plant Common Q safety instrument control system, field analog signal collection of reactor auxiliary equipment

2. Thermal power, hydropower plant boiler, turbine auxiliary cabinet pressure, flow analog signal monitoring

3. Petrochemical DCS distributed control system, pipeline pressure, liquid level, flow transmitter signal acquisition

4. Metallurgy, cement heavy industry kiln and furnace production line analog signal real-time collection

5. Substation intelligent monitoring cabinet, high voltage equipment pressure sensor signal processing

6. Offshore oil and gas platform explosion-proof automation control system

7. Large refrigeration central air conditioning BMS building intelligent control system

8. Water treatment factory PLC control cabinet flow, liquid level analog signal acquisition

9. Rail transit vehicle auxiliary control cabinet sensor signal conversion and transmission

Content Description

1. Confirmed fixed information: 4256A88G01 belongs to Emerson Westinghouse Common Q DCS analog input sub-board, supporting 8-channel standard analog signal input, reaching nuclear Class 1E safety standard (sorted from industrial DCS spare parts database)

2. Derived standardized content: Title, introduction, complete parameters and application fields adopt unified international industrial control module English writing specifications; if you need the exact original parameters of the official datasheet, please check Emerson’s official operation manual for further verification.