VEGA VEGABAR 64 Profibus PA - Manual (Page 32)

6.4 Setup procedure
Before starting the actual parameter adjustment of a Profibus PA
sensor, the address setting must first be carried out. You will find a
detailed description in the operating instructions manual of the
indicating and adjustment module or in the online help of PACTware or
DTM.
VEGABAR 64 can be used for level as well as for process pressure
measurement. Default setting is level measurement. The mode can be
changed in the adjustment menu.
Depending on the application only the respective subchapter "Level or
process pressure measurement" is of importance. There, you find the
individual adjustment steps.
Level measurement
Set up VEGABAR 64 in the following sequence:
1 Selecting adjustment unit/density unit
2 Carry out position correction
3 Carrying out min. adjustment
4 Carrying out max. adjustment
In the menu item "Adjustment unit" you select the physical unit in which
the adjustment should be carried out, e.g. mbar, bar, psi…
The position correction compensates the influence of the mounting
position or static pressure on the measurement. It does not influence
the adjustment values.
Information:
The steps 1, 3 and 4 are not necessary for instruments which are
already preset according to customer specifications!
You can find the data on the type label on the instrument or in the
menu items of the min./max. adjustment.
The indicating and adjustment module enables the adjustmetn without
filling or pressure. Thanks to this, you can carry out your settings
already in the factory without the instrument having to be installed.
The actual measured value is also displayed in the menu items for
min./max. adjustment.
In this menu item you select the adjustment unit as well as the unit for
the temperature indication in the display.
To select the adjustment unit (in the example switching over from bar
to mbar) you have to proceed as follows:
3)
3) Selection options: mbar, bar, psi, Pa, kPa, MPa, inHg, mmHg, inH
2
O,
mmH
2
O.
Address setting
Level or process pres-
sure measurement
Parameter ad-
justment "Level
measurement"
Select unit
32 VEGABAR 64 • Profibus PA
6 Set up with the indicating and adjustment module PLICSCOM
28252
-EN
-081209