دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a type of orifice meter chart that indicates the differential pressure and static pressure for a particular time period. The pressures can be read directly from the chart instead of being calculated from information given on the chart.

n: a direct reading chart used on the flow recorder of an orifice metering system on which are recorded static and differential pressures during a particular time period. It must have the same static and differential ranges as the flow recorder.