biochrom ultrospec 7000 User Manual page 35

The Standard Specification screen is used to declare a list of all of the standard
solutions which will be referenced when creating an equation.
E.g. the equation for percentage strength at 500 nm compares the absorbance of a
sample to the absorbance of a control standard. This is where the control standard
would be defined.
Standard names are entered by pressing on the desired row and entering the
standard name using alphanumeric text entry. Standard measurements can be
made for any measurements specified in the Samples table.
The Constant Factor Specification screen is used to declare any constants used in the
equation. Data is inputted as described below. Before any data is inputted Constant
Name will read 'Not set' and will not appear in the Constants list on the Equation
Builder.
Constant Name Pressing this allows the user to input an alphanumeric name for
the constant.
Value Pressing this produces the number entry box that allows the user
to input the value of the constant.
Units Pressing this allows the user to enter units for the constant using
alphanumeric text entry. If this column is left blank, no units will be
displayed on exported or printed data.
Del Pressing this deletes the row. If the constant is used in an equation
this will also be deleted.
The Variable Factor Specification screen is used to declare any variables used in
the equation. Data is inputted as described below. Before any data is inputted,
Variable Name will read 'Not set' and will not appear in the Variables list on the
Equation Builder.
Variable Name Pressing this allows the user to input an alphanumeric name for the
variable factor.
Default Pressing this produces the number entry box that allows the user to
input the default variable factor. Default values can be edited during
a measurement.
Units Pressing this allows the user to enter units for the variable factor
using alphanumeric text entry. If this column is left blank, no units
will be displayed on exported or printed data.
Change Each Pressing this toggles between sample and batch. When set to
sample the method will prompt for a variable to be entered before
each sample measurement. When set to batch, the method will
prompt for a variable to be entered at the start of each sample
batch.
5061-046 Rev1
29004782UM AA 10/2011 35
35