Table 18 - Dielectric Constants Required By Application - Honeywell SLG 700 User Manual

Two Liquids Non-Flooded: In this application there are also two liquid products in the
tank, however, the tank is not normally full so that there is a vapor above the Upper
Product, as shown below in
products in the tank as well as the level of the interface (boundary) between the two liquid
products in the tank. While both level measurements are available for monitoring through
the HART digital interface, only one measurement can be assigned to provide the analog
loop current signal to a control system.
Vapor Dielectric Constants:
Depending on the selection above, the user interface allows users to enter values for the
dielectric constant (DC) for each of the products present, as shown in Table 18.

Table 18 - Dielectric Constants Required by Application

Single Liquid
Vapor DC
Product DC
The dielectric constant of most gasses is very close to 1.0 and the Vapor Dielectric Constant
parameter will most often not need to be edited. Enter the correct value if it is significantly
different than 1.0.
Revision 5
Figure 9. The SLG 700 measures the total level of the
Figure 9: Two-liquid Non-flooded Application
Two Liquid Non-Flooded
Vapor DC
Upper Product DC
Lower Product DC
SLG 700 Series HART Option User's Manual
Two Liquid Flooded
Upper Product DC
Lower Product DC
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