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515-DP01 – Density Converter (Liquid)

The density converter application accepts inputs from Sarasota density meters, temperature and pressure transmitters, and an unassigned input enabling a variable to be connected as an input to the Customer Defined Function (look-up table).

The converter calculates line (measured) density from the density meter period output and uses it together with temperature and pressure readings to derive density at reference conditions and calculate specific gravity and other density related variables.

This instrument is compatible with a wide range of density meter pulse outputs, including millivolt signals, reed switches, Namur proximity switches and pulse trains via its smart front-panel program selection.

Calculations

The line density calculations are based on accurately measured average period of pulses coming from density meters such as Sarasota Industrial Density Meter FD910, etc.

The density conversion to reference conditions is based on the ASTM D1250-04 standard for the following products:
• Crude Oils
• Lube Oils
• Refined Products

The density conversion for general liquids is done by using compressibility and thermal expansion coefficients.

For more information on other products please click below.

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Features

Pulse Input for Density
Temperature and Pressure inputs for density conversion to reference conditions
Conversion based on a variety of liquids (Petroleum to ASTM D1250 or General fluids)
Degrees API, Baume and Brix
Customer Defined Function (look-up table)
Versatile User Input available on main menu
Selection of second language and user tags
RTC logging with over 1000 entries
4-20mA retransmission
RS-232, RS-485 (optional) and infra-red serial ports
Modbus RTU, Printer and other serial port protocols
Front panel adjustment of 8-24V DC output voltage
Backlit Display

Typical plant diagram

Downloads

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    Features

    Pulse Input for Density
    Temperature and Pressure inputs for density conversion to reference conditions
    Conversion based on a variety of liquids (Petroleum to ASTM D1250 or General fluids)
    Degrees API, Baume and Brix
    Customer Defined Function (look-up table)
    Versatile User Input available on main menu
    Selection of second language and user tags
    RTC logging with over 1000 entries
    4-20mA retransmission
    RS-232, RS-485 (optional) and infra-red serial ports
    Modbus RTU, Printer and other serial port protocols
    Front panel adjustment of 8-24V DC output voltage
    Backlit Display

    Typical plant diagram

    Downloads

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                European, Middle East and UK

                Contrec Limited

                Unit G8, Navigation Close

                Lowfields Business Park

                Elland, West Yorkshire

                HX5 9HB

                United Kingdom.

                +44 (0) 1422 829944 [email protected]

                Sales Director: Craig Naylor

                [email protected]

                Sales and general enquiries

                [email protected]

                Marketing: Lucy Wood

                [email protected]
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                United States.

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                Contrec Systems Pty Ltd

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                Melbourne, Victoria, 3134

                Australia.

                +61 (0) 0413 505 114 [email protected]

                Managing Director: Paul Chaston

                [email protected]
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