The UIM-4F has four paths as standard It has been tested to meet the international standards for custody transfer metering including AGA-9 and OIML R137 (class 0.5). Integration of the flow across the paths provides accurate measurement even with varying flow profiles caused by changes in flow velocity, gas composition and pressure or upstream pipe configuration.
The UIM-4F Duo consists of two fully independent systems. The main measurement is done by the UIM-4F four path part. The three path system provides a secondary measurement and uses enhanced diagnostics to enable the user to perform condition-based maintenance. In addition, the UIM-4F Duo provides a wealth of information on the condition of the complete metering system.
