Foxboro AD202MW Spec‑200 RTD Input Module

Technical Specifications

Model:AD202MW

Brand:Foxboro

System compatibility:Spec‑200 analog DCS system

Function:Platinum RTD resistance signal acquisition,conditioning and conversion for process temperature measurement

Sensor input:Platinum RTD resistance sensor input

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

Calibration:On‑board zero and span potentiometer for field on‑site calibration

Signal processing:Built‑in noise filtering circuit for raw resistance signal

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

Accuracy:±0.12% full scale

Typical response time:6ms

Diagnostic:On‑board multi‑color LED indicators for module power,communication and channel fault alarm

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

Housing:Metal shielded rack‑mount 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:>88000 hours

Built‑in function

AD202MW RTD input module collects resistance signal from field‑mounted platinum RTD sensors and completes signal conditioning for Spec‑200 control rack. On‑board zero‑span potentiometers support on‑site calibration without removing module from instrument rack. Built‑in filter circuit suppresses electromagnetic interference interference,ensures stable temperature acquisition for pressure,flow and temperature process loops in petrochemical,chemical and power‑plant facilities. LED status indicators help technicians quickly locate power and channel abnormal conditions for field troubleshooting.

Product Brief

AD202MW belongs to Foxboro Spec‑200 legacy DCS spare‑part family,obsolete original plug‑in automation component. It must be fitted inside matching Spec‑200 instrument rack with correct RTD field sensor wiring. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation