EWS Controllers

EWS Controllers Overview

EWS Controllers, available from GAPS Water Treatment, are advanced control units designed for precise automation and monitoring of reverse osmosis (RO) systems. Models like the OS3020 and OS3030 support multiple operating stages—standby, production, rinse after production, and interval rinse—making them ideal for both commercial and industrial RO applications 

These controllers feature multilingual LCD interfaces, conductivity monitoring, programmable relay outputs, and non-volatile memory for reliable performance even during power loss.

With flexible power supply options (24V, 115V, 230V AC/DC), wall-mountable IP65 enclosures, and compatibility with level switches and pressure sensors, EWS units offer robust, user-configurable control for new installations or retrofits