Aalborg Vortex Insertion - Manual (Page 54)

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5.3.9.3 Submenu L2 API 2540 Menu
If “Oil” is selected as flowing fluid the flow meter is using API 2540 equation for
fluid density calculation. Following parameters related to flowing Oil have to be
entered:
Oil Density @ 60 °F (kg/m^3)
Constant K0 (no units)
Constant K1 (no units)
See Richard W. Miller, Flow Measurement Engineering Handbook (Second Edition,
1989), page 2-76 for definition and use of the API 2540 equation.
NOTE: If “Oil” was not selected at factory as your process flowing fluid
the default settings for API 2540 equation are made for Crude oils and
JP4 as following:
Oil Density @ 60 °F 898.0 kg/m^3
Constant K0 341.0957
Constant K1 0.0
,