The OS3030 (wall-mounted) controllers are used for the fully automatic monitoring and control of water treatment plants, which operate on the basis of the process of reverse osmosis. The unit type OS3030 is universal applicable for automatic monitoring and control of reverse osmosis plants. The controller is equipped with an conductivity meter without temperature meter. There are six possible stages : "Stand by", "Production", "Rinse after production", "Rinse during standby", "Rinse during production" and "Maintenance". Adaptable to user specific requirements by built-in programmable options. The programmed configuration will be stored into non volatile memory and therefore not be affected by power loss.