Foxboro AD202MU Spec‑200 Isolated Analog Input Module Multi‑Signal Rack‑Mount DCS Spare Part

Technical Specifications

Model:AD202MU

Brand:Foxboro

System compatibility:Spec‑200 analog DCS system

Function:Multi‑range analog signal acquisition and galvanic isolation for field process signals

Installation:Standard Spec‑200 rack‑slot installation,direct backplane bus connection

Input signal:Configurable 4‑20mA current loop,0‑10V voltage process signal

Isolation strength:1500Vrms galvanic isolation between field‑side and rack internal circuit

Protection:Built‑in over‑voltage and transient surge input protection

Accuracy:±0.12% full scale

Response time:6ms typical signal conversion cycle

Diagnostic:On‑board LED indicators for module power supply and channel abnormal alarm

Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition

Housing:Metal shielded plug‑in housing,anti‑vibration mechanical reinforcement

Protection class:IP20

Horizontal operating temperature:0℃ ~ +60℃

Vertical operating temperature:‑20℃ ~ +55℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.49kg

Dimensions:34mm × 126mm × 142mm

Certification:CE,UL

MTBF:>89000 hours

Built‑in function

AD202MU isolated analog input module collects analog signals from field transmitters and realizes galvanic isolation between field instrument side and Spec‑200 rack backplane circuit,eliminates ground loop interference impact for process measurement. Transient‑surge protection circuit restrains field‑side high‑voltage spike damage to internal rack hardware. LED visual diagnosis helps field staff quickly locate input channel faults,guarantees stable signal acquisition for pressure,flow and temperature control loops in petrochemical and chemical plants.

Product Brief

AD202MU belongs to Foxboro Spec‑200 legacy DCS spare‑part family,obsolete original plug‑in automation component. It must be fitted in matching Spec‑200 instrument rack with correct field analog signal wiring. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation