Aalborg Vortex Insertion - Manual (Page 56)

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Mol Weight Ratio Specific Gravity as ratio of molecular weight G =
Mw(gas)/Mw(air)[(g/mol)/(g/mol)] (numerical entry)
Density Ratio Real specific Gravity as density ratio Gr = (Gas)/
(Air)@ actual flowing temperature and
pressure (numerical entry)
Compress. Z @ TP Compressibility factor Z @ actual flowing tempera-
ture and pressure (numerical entry)
Other Mol Weight Molecular Weight of Gas Mw (Lb/Lb mol)
(numerical entry)
Critical Temp (F) Critical Temperature of the Gas (deg. F)
(numerical entry)
Crit. Press PSIA Critical Pressure of the Gas (PSI) (numerical entry)
5.3.9.6 Submenu Cust Flow. Cond Menu
Actual customer Flowing Conditions Menu includes following parameters:
Cust STD Density Density of the flowing fluid at standard temperature
(for factory settings only) and pressure (g/cm^3). This static parameter is used
only for internal volumetric and mass flow units
conversion and is not related to dynamic Density
calculated by Vortex flow meter.
Cust. Temp (F) customer application actual flowing temperature
(deg. F)
Cust. Press (PSIA) customer application actual flowing pressure (PSIA)
NOTE: Your flow meter is pre-programmed at the factory for your
application’s process flowing temperature and pressure (see device’s
label or calibration data sheet). There is no need to adjust Customer
Flowing Conditions settings, unless application’s flowing temperature
or pressure are changed.
,
NOTE: Changing Cust STD Density parameter will affect settings for
Flow Alarm settings, Totalizer start flow and 4-20mA output limits
(if mass flow is selected as process variable).
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