Siemens SITRANS LG250 Operating Instructions Manual page 37

Setup - Application - Ap-
plication
Setup - Application - Me-
dium, dielectric constant
Setup - Application - Gas
phase
PBD-51041388
In this menu item, you can select the application. You can choose
between level measurement and interface measurement. You can
also choose between measurement in a vessel or in a bypass or
standpipe.
Note:
The selection of the application has a considerable influence on all
other menu items. Keep in mind that as you continue with the param-
eter adjustment, individual menu items are only optionally available.
You have the option of choosing the demonstration mode. In this
mode, the sensor ignores the parameters of the application and
reacts immediately to any change.
This mode is only suitable for test and demonstration purposes and
must not be used in a safety-instrumented application (SIL).
In this menu item, you can define the type of medium (product).
This menu item is only available if you have selected level measure-
ment under the menu item "Application".
You can choose between the following medium types:
Dielectric con- Type of medium
stant
> 10 Water-based liq-
uids
3 ... 10 Chemical mix-
tures
< 3 Hydrocarbons
This menu item is only available, if you have chosen interface meas-
urement under the menu item "Application". In this menu item you can
enter if there is a superimposed gas phase in your application.
Only set the function to "Yes", if the gas phase is permanently pre-
sent.
SITRANS LG250 - Operating Instructions
Examples
Acids, alcalis, water
Chlorobenzene, nitro lacquer, aniline,
isocyanate, chloroform
Solvents, oils, liquid gas
37