Diagnostic system for gas feed in fuel supply in fuel station for vehicles

摘要

The petrol fuelling facility of a station has a number of buried storage tanks (4-6) that are coupled to a common take line (3) having a pump (2) connecting with nozzles (1). A metering system is activated at the start of delivery. A diagnostic system provides a check on gas products in feed and return lines and uses a pressure difference signal (15).