The FBM203 series modules are high-precision analog input devices designed to interface RTD sensors with I/A Series or Foxboro Evo™ control systems. Each input channel accepts a 2- or 3-wire RTD sensor (FBM203, FBM203b, FBM203c) or a 4-wire RTD sensor (FBM203d) and supports resistance ranges up to 320 Ω, 640 Ω, or 30 Ω depending on the module type. All analog inputs are galvanically isolated from other channels and ground, ensuring accurate and reliable measurement in industrial environments.

These modules perform the necessary signal conversion to communicate sensor readings with optionally redundant fieldbus networks. They execute an analog input application program, providing configurable conversion times and Rate of Change Limits for flexible, precise control. The FBM203/b/c/d modules are compatible with Foxboro Evo™ Control Core Services or I/A Series® software, depending on the module version, making them adaptable to a variety of control system architectures.

For convenient field wiring, the FBM203 series supports passive termination assemblies (TAs). DIN rail-mounted or baseplate-mounted TAs allow easy connection to field I/O and maintain backward compatibility with the functionality of the 100 Series FBM I/O subsystem. This design ensures seamless integration into existing installations while providing the accuracy and reliability needed for modern industrial automation applications.

• Eight RTD Input Channels - Supports precise temperature measurement from 2-, 3-, or 4-wire RTD sensors
• Galvanically Isolated Inputs - Each analog input is fully isolated to ensure signal integrity and reduce interference
• Rugged Industrial Design - Built for Class G3 (harsh) environments, ensuring reliability in demanding applications
• Analog Input Application Program - Provides configurable conversion times and Rate of Change Limits for flexible operation
• High Accuracy - Achieved through sigma-delta data conversions on each channel
• Flexible Termination Assemblies (TAs) - Supports local or remote wiring connections, simplifying installation and integration into existing systems

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