FuelsManager Defense
350 Administrator Manual
This process variable is the pressure measured at the same known height in the tank, typically at a point such
that it is normally below the product level. This variable is usually measured by automatic tank gauging but can
be manually entered by the operator. This data is normally only applicable to tanks containing liquified
hydrocarbon or those using hydrostatic or hybrid tank calculations
BOTTOM PRESSURE P1 - HYDROSTATIC PRESSURE P1
This process variable is the pressure measured at the bottom of the tank, typically of a point that is always below
the lowest possible product level. This variable is usually measured by automatic tank gauging but can be
manually entered by the operator. This data is normally only applicable to tanks containing liquified hydrocarbon
or those using hydrostatic or hybrid tank calculations
AIR DENSITY - AIR DENSITY
This process variable is the density of the air surrounding the tank. This variable is usually measured by
automatic tank gauging but can be manually entered by the operator. This data is normally only applicable to
tanks containing liquified hydrocarbon or those using hydrostatic or hybrid tank calculations
MASS FLOW - MASS FLOW
This process variable is the mass flow of product into or out of the tank. FuelsManager normally calculates this
sampling the mass at user-defined intervals and averaging the change in mass over a user-defined number of
samples. However, this value can also be measured by automatic tank gauging systems or manually entered by
the operator
MASS FLOW TIME - MASS FLOW TIME
This process variable is the last time that the tank mass flow was updated. This variable can be viewed from the
Operate interface but cannot be modified
NET FLOW - NET FLOW
This process variable is the net volumetric flow of product into or out of the tank. FuelsManager normally
calculates this sampling the net volume at user-defined intervals and averaging the change in net volume over a
user-defined number of samples. However, this value can also be measured by automatic tank gauging systems
or manually entered by the operator
NET FLOW TIME - NET FLOW TIME
This process variable is the last time that the tank Net flow was updated. This variable can be viewed from the
Operate interface but cannot be modified
VAPOR MASS – VAPOR MASS
This process variable is the mass of the vapor space above the product in the tank. FuelsManager normally
calculates this value. However, the value can also be measured by automatic tank gauging systems or manually
entered
VAPOR NET VOLUME – VAPOR NET VOLUME
This process variable is the net volume of vapor space above the product in the tank. FuelsManager normally
calculates this value. However, the value can also be measured by automatic tank gauging systems or manually
entered
Tank Points - Process Data
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