Product Details:

FOXBORO AD908AE is a rack-mounted 8-channel universal analog input module for FOXBORO I/A Series DCS system, a high-performance DCS signal card built for process automation. This universal analog input module adopts conformal coated PCB assembly and reinforced shielding frame, protecting internal precision electronic circuits from vibration, dust and electromagnetic interference inside industrial control cabinets. It can be directly plugged onto the DCS rack backplane and matched with dedicated terminal base for convenient wiring and fast maintenance. It supports multiple configurable signal types without hardware modification, bringing great flexibility for different measurement requirements of industrial process loops.

This FOXBORO AD908AE DCS signal card receives various standard input signals collected from field transmitters, including 4~20mA DC current, DC voltage, RTD and thermocouple signals for temperature, pressure, flow and liquid level measurement. It converts raw analog field signals into digital data and transmits processed data to the DCS host controller for real-time monitoring, historical recording and closed-loop PID control calculation. Each channel is equipped with 2000V galvanic isolation to eliminate cross-channel signal crosstalk and guarantee high-precision data acquisition. The module integrates built-in channel self-diagnosis function, which can detect open circuit, short circuit and hardware abnormalities. Once faults are detected, it sends alarm information to the DCS host system, helping maintenance engineers quickly locate faulty channels and reduce unplanned plant downtime. It supports hot swap operation, technicians can replace the module without shutting down the whole DCS system, which is critical for continuous production plants.

Specifications:

Model: AD908AE

Brand: FOXBORO

Product Type: 8-channel universal analog input DCS module

System compatibility: FOXBORO I/A Series DCS

Input signal: 4~20mA, DC voltage, RTD, thermocouple

Resolution: 16-bit sigma-delta ADC

Measurement accuracy: ±0.1% full scale

Isolation rating: 2000V channel-to-backplane

Diagnosis: Open circuit, short circuit and channel fault alarm

Power supply: 24VDC supplied by rack backplane

Max power consumption: 4.1W

Ambient working temperature: 0℃ ~ +60℃

Relative humidity: 5% ~ 95%, non-condensing

Installation: Rack mounting with dedicated terminal base

Environmental grade: G3 harsh environment, conformal coating

This universal analog input module has excellent EMC anti-interference performance and strong environmental adaptability, maintaining stable signal acquisition performance under complex electromagnetic environment. Its modular plug-in rack structure simplifies installation, inspection and component replacement, cutting maintenance workload and plant downtime. This DCS signal card is widely used in oil & gas, chemical refining, power generation, pulp and paper industries. It can be deployed for new DCS automation project construction, and also serves as spare parts to replace aging analog input modules on legacy I/A DCS systems. Every FOXBORO AD908AE module passes strict factory testing and calibration before shipment to guarantee reliable data acquisition performance for process automation.