Cargo control and cargo volume/mass calculation system for LPG gas carriers is based on unique non-contact measurement principle-GLFW( Guided Low Frequency Wave) with following advantages:

• Stable and accurate measurements of liquefied gas level ( +/-2 mm) based on low frequency acoustic wave both in cargo tanks and deck containers
• Possibility of level measurement of stratification of different gases( e.g. nitrogen/butane)
• Possibility of bending the waveguide to avoid obstacles inside the cargo tank or deck containers               

For more information, please refer to: http://www.api-marine.com/download.aspx