7828 Density Transmitter Technical Manual Introduction
78285000_AB 4-9
Referral Calculation
To configure the referral calculation, you will need to enter the relevant information.
For matrix referral, this is a set of four values of density for each of up to five different
temperatures; Appendix B gives more details on this.
For API referral, you can select the product type, which automatically adjusts the
coefficients of the General Density Equation (see Section 5XX), or enter your own values.
Special Functions
The range of special functions (calculated parameters) that are available depends on the
referral type selected.
Special Function API referral Matrix referral
Specific Gravity
✔✔
API°
✔
% mass
✔
% volume
✔
° Baumé
✔
° Brix
✔
User defined quadratic
✔
None
✔✔
When you select the Special Function you require, the configuration window will alter to
allow you to input the relevant parameters, if applicable. Note that you can only select
one Special Function to be available at any one time.
When you are satisfied with the configuration, you should save it to a file, using the
Register Dump/Load facility, as a safeguard against subsequent loss or alteration.
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