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Petroleum Flow Computer
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 analog 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 included gasoline, jet fuels, heating oils, diesels and lube oils.
Calculations
The volume total and flowrate are derived from 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:
• Crude Oils
• Lube Oils
• Refined Products
Features
Pressure and Temperature compensation to ASTM D1250-04
Caters for a wide range of petroleumproducts including crude, lube and refined
Accepts temperature and/or density inputs for volume correction
Allows quadrature flow input for ISO 6551 level B pulse security
Allows for non-linear correction
Selection of second language and user tags
RTC logging with over 1000 entries
Infra-red communications port on front panel
Pulse width and scaling of pulse output
4-20mA retransmission
Selectable protocols on serial ports including Modbus RTU and printer output
Front panel adjustment of 8-24V DC output voltage
Backlit Display
LCD Backup Typical plant diagram
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