The E+H Tankvision Multi Scan NXA83 scans parameters from tank gauges and performs tank calculations as one part of Tankvision. For a step by step site upgrade, the Multi Scan allows legacy protocol management as well as gradual upgrades for more flexibility. Tankvision is based on a distributed architecture on a local area network (LAN). Due to its modular structure it is ideally suited for medium size tank farms with only a few tanks, but also for large refineries with hundreds of tanks.