Vega VEGAMET 342, Руководство по эксплуатации

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10 Applications and functions
VEGAMET 342 • 4 … 20 mA
63731-EN-221107
Rel. 1 Rel. 2
Rel. 1: 90%
Rel. 2: 5%
100%
0%
Fig. 13: Example of level measurement, horizontal cylindrical tank
10.1.1 Setup
An application wizard guides you through the most common selection
possibilities. Further application options are available on the corre-
sponding DTM/app pages. A more detailed description of all available
application options is included in the DTM online help.
The following steps must be carried out in the application wizard:
Select application
Select the application " Level storage tank " from the options offered.
Assign measuring loop name
Assign a unique designation to the measuring point so that there can
be no confusion with other measuring points.
Define sensor characteristic values
The measuring range suitable for the application should be set di-
rectly in the sensor to achieve the maximum accuracy. This measuring
range must now be stored once again in the assistant together with
the sensor type and measuring unit.
Linearisation
Select the suitable linearization type (linear, cylindrical tank, spherical
tank) depending on your vessel.
Define adjustment values
Enter the adjustment values of the measuring point for 0 % and for
100 %.
Scaling
Enter the measured value and unit (e.g. volume and m³) and the cor-
responding scaling values for 100 % and 0 % (e.g. 100 m³, 0 m³).
Configure relay
First select the requested mode for the relay (" Overfill protection, dry
run protection, switching window ON/OFF "). Also define the appro-