Burkert 8137 Manuel D'instructions page 28

6 Set up with the indicating and adjustment module
Address setting HART-
Multidrop
Parameter adjustment
Carrying out min. ad-
justment
28
All manuals and user guides at all-guides.com
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
"Indicating and adjustment module" or in the online help of PACTware
or DTM.
HART mode
Standard
Address 0
As LEVEL TRANSMITTER 8137 is a distance measuring instrument,
the distance from the sensor to the product surface is measured. To
have the real product level displayed, an allocation of the measured
distance to the percentage height must be made. To carry out this
adjustment, the distance is entered with full and empty vessel. If these
values are not known, an adjustment with the distance values, e.g.
10 % and 90 % is also possible. Starting point for these distance
specifications is always the seal surface of the thread or flange. With
these settings, the real level is calculated. Furthermore the operating
range of the sensor is limited from maximum to the required 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.
Caution:
If there is a separation of liquids with different dielectric values in the
vessel, e.g. from condensation, LEVEL TRANSMITTER 8137 can
detect under certain circumstances only the medium with the higher
dielectric value.
Keep in mind that interfaces can cause faulty measurements.
If you want to measure the total height of both liquids reliably, please
contact our service department or use an instrument specially
designed for interface measurement.
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].
LEVEL TRANSMITTER 8137 • 4 ... 20 mA/HART