Product Description

The FBM202 (P0916AC) is a high-precision input interface module for the Foxboro I/A Series Distributed Control System (DCS). It serves as a dedicated thermal measurement gateway, featuring eight independent thermocouple/millivolt channels and one isolated RTD channel for Cold Junction Compensation (CJC). By integrating reference junction compensation into the module, the FBM202 delivers highly accurate temperature measurements across a wide range of industrial thermocouple types.

Each channel is galvanically isolated to eliminate ground loops and reduce common-mode noise. The module also includes up-scale burnout detection, immediately notifying the control system of sensor failures or broken wiring to ensure process safety.

Technical Specifications

Application

The FBM202 is ideal for high-temperature monitoring in metal smelting, glass manufacturing, and power generation boilers. It is suited for process environments where temperature accuracy is critical to product quality and equipment safety. Its rugged design allows placement in remote instrument enclosures, minimizing thermocouple lead errors over long distances.

Technical FAQ

How does the module handle cold junction compensation?
The FBM202 uses a dedicated ninth RTD channel to monitor the terminal assembly temperature, ensuring accurate thermocouple mV-to-temperature conversion.

Can the P0916AC be used for standard mV signals?
Yes. The module is software-configurable to accept millivolt inputs, enabling integration with specialized sensors beyond standard thermocouples.