Rockwell Automation
The Bulletin 931 analog signal conditioner (photo) isolates multiple signals on the same power source, which can reduce group-loop and common-mode noise. Designed specifically for process applications involving batch or continuous operations, the Bulletin 931 can be incorporated into an existing control system to convert a wide range of signals from field devices into a standard 4- to 20-mA signal. The product helps users extend the performance and functionality of legacy control systems. — Rockwell Automation Inc., Milwaukee, Wisc.