Product Details:

FOXBORO FBM201B is an 8-channel galvanically isolated analog input fieldbus module belonging to FOXBORO I/A Series Compact 200 I/O family. It is designed for low-level millivolt signal acquisition, accepting 0 to 100mV DC signals from thermocouples and low-voltage sensors. Every channel features independent channel-to-channel and channel-to-ground isolation. This module adopts sigma-delta ADC chips to convert weak millivolt signals into digital values for the DCS FCP controller. The PCB uses conformal coating 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 open circuit and signal abnormality, triggers alarms so technicians can quickly locate wiring faults. FBM201B supports hot swap and is widely used for DCS maintenance, spare parts replacement and system retrofit projects. Every FOXBORO FBM201B module passes factory testing and calibration before shipment.

Specifications:

Model:FBM201B

Brand:FOXBORO

Product Type:8 Channel 0-100mV Isolated Analog Input Module

System compatibility:FOXBORO I/A Series DCS

Input signal:0-100mV DC analog input,8 isolated channels

ADC:16-bit sigma-delta conversion

Communication:Redundant 2Mbps module fieldbus

Redundancy:Support redundant module configuration

Diagnosis:Built-in self-diagnosis,sensor fault 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

FBM201B is specialized for low millivolt measurement, different from the 0-20mA FBM201 variant. Its high input impedance design minimizes signal attenuation for weak thermocouple millivolt outputs. It supports configurable integration time to filter industrial noise and improve measurement stability. It is widely used for furnace and high-temperature equipment temperature monitoring in power plants and petrochemical plants, and serves as spare replacement for legacy I/A DCS millivolt input cards. Every FOXBORO FBM201B module passes factory testing and calibration to guarantee reliable process control performance.