automaatne tasememõõtur, mis on konstrueeritud ja paigaldatud mõõtma kaugust ülemisest automaatse tasememõõturi tugipunktist vedeliku pinnani
automatic level gauge designed and installrõed to measure the ullage distance from the upper automatic level gauge reference point to the liquid surface
An ullage volume automatic level gauge is used, for example, to measure the level of a liquid in an above-ground tank containing diesel, fuel oil, oil, etc.