KROHNE OPTISOUND 3020C 4wire EN - Manual (Page 26)

6.4 Setup procedure
In HART-Multidrop mode (several sensors on one input) the
address must be set before continuing with the parameter
adjustment. You will find a detailed description in the operating
instructions manual of the indicating/adjustment module.
HART mode
Standard
Address 0
Because OPTISOUND 3020 C is a distance measuring
instrument, its primary task is to measure the distance from the
sensor to the product surface. In order to indicate the actual
filling level, the measured distance must be allocated to a
specific height percentage. To make this adjustment, the full
and empty distances in the vessel are entered. If these values
are not known, it is also possible to carry out the adjustment
with other distances, e.g. 10 % and 90 %. The origin of these
distance values is always the lower edge of the flange (with
flange versions) or the lower edge of the transducer (all other
versions).
The actual level is then calculated on the basis of these
entered values. At the same time, the operating range of the
sensor is limited from maximum range to the requested range.
The real product level during this adjustment is not important,
because the min./max. adjustment is always carried out
without changing the product level. These settings can be
made ahead of time without the instrument having to be
installed.
In the main menu item "Basic adjustment", the individual
submenu items should be selected one after the other and
provided with the correct parameter values.
Start your parameter adjustment with the following menu items
of the basic adjustment:
Proceed as follows:
1 Move from the measured value display to the main menu
by pushing [OK].
Address setting HART-Multi-
drop
Parameter adjustment
Carrying out min. adjustment
26 OPTISOUND 3020 C - 4 ... 20 mA/HART - four-wire
Setup with the indicating/adjustment module
30508
-EN
-050914