During bottom-loading of tanker trucks, several compartments are filled at high speed and without the opportunity for manual supervision. In order to prevent an overfilling, product spills, electrostatic charges and emissions, an emergency shut-off system, supervised grounding, and vapor collection is mandatory by law.
The Overfill Prevention Controller EUS-2 is the central part of the overfill prevention system according to European VOC Directive 94/63/EC and American API RP 1004. EUS-2 monitors the level sensors at the tanker compartments, the truck grounding and the vapor recovery connection. The filling process is interrupted immediately, if a critical situation is detected.