The 515 PP01 petroleum flow computer measures the flow of a pressurised petroleum fluid according to ASTM D1250-04. The frequency flow inputs can accept a quadrature signal for ISO 6551 level B pulse security. An analogue pressure, temperature and/or density input allows for volume correction to reference conditions.
This instrument is compatible with a wide range of flowmeter frequency outputs, including millivolt signals, reed switches, Namur proximity switches and pulse trains via its smart front-panel program selection.
The petroleum flow computer displays the net and gross flowrates, resettable and accumulated totals. It can be used to measure a range of crude and refined petroleum fluids including gasoline, jet fuels, heating oils, diesels, and lube oils.
CALCULATIONS
The volume total and flowrate are derived from an accurately measured frequency and the number of received pulses.
volume = pulses/k-factor
volume flow = frequency/k-factor
The volume correction calculations are based on the ASTM D1250-04 and API Table 54 standard for the following products:
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