Product Details:

FOXBORO FBM203 is an 8-channel galvanically isolated RTD temperature input fieldbus module from FOXBORO Compact 200 I/A Series DCS. It collects resistance signals from 2-wire and 3-wire RTD sensors such as Pt100 and Ni120, converting resistance values into accurate temperature readings for the FCP controller. Each channel uses independent channel-to-channel isolation and 16-bit sigma-delta ADC. Built-in lead resistance compensation reduces measurement error caused by long field instrument cables. The PCB is conformal coated to defend against vibration, dust, humidity and electromagnetic interference in harsh industrial environments. It communicates over redundant 2Mbps fieldbus. Built-in continuous self-diagnosis detects sensor open circuit and short circuit faults, triggers alarms for technicians to quickly locate temperature loop issues. FBM203 supports hot swap and is widely used for DCS maintenance, spare parts replacement and system retrofit projects. Every FOXBORO FBM203 module passes factory testing and calibration before shipment.

Specifications:

Model:FBM203

Brand:FOXBORO

Product Type:8 Channel Isolated RTD Temperature Input Module

System compatibility:FOXBORO I/A Series DCS

Input signal:2/3-wire RTD,0~320Ω,8 isolated channels

Supported sensors:Pt100,Ni120

ADC:16-bit sigma-delta conversion

Communication:Redundant 2Mbps module fieldbus

Redundancy:Support redundant module configuration

Diagnosis:Built-in self-diagnosis,sensor open/short detection

Power supply:24VDC redundant

Hot swap:Supported

Ambient operating temperature:0℃ ~ +60℃

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

Installation:Rack card mounting on 200 series baseplate

Environmental grade:G3 harsh environment,conformal coating

FBM203 is dedicated for RTD temperature acquisition, differentiated from FBM202 thermocouple input card. The integrated lead resistance compensation function greatly improves precision for sensors installed far away from control cabinets. Users can set temperature rate-of-change alarms to capture abnormal thermal variation in advance. It is commonly used for pipeline, bearing and reactor temperature monitoring in petrochemical and power plants, and acts as direct spare replacement for aging RTD input cards on legacy I/A DCS systems. Every FOXBORO FBM203 module passes factory testing and calibration to guarantee reliable process control performance.