54
6 Set up with the display and adjustment module
VEGAPULS 69 • Two-wire 4 … 20 mA/HART
47247-EN-200427
too high a level and not all false signals could be detected. When
selecting "
Extend
", the distance to the product surface of the created
false signal suppression is displayed. This value can now be changed
and the false signal suppression can be extended to this range.
A linearization is necessary for all vessels in which the vessel volume
does not increase linearly with the level. Corresponding linearization
curves are preprogrammed for these vessels. They represent the
correlation between the level percentage and vessel volume. The
linearization applies to the measured value indication and the current
output.
In this menu item you specify the HART mode and enter the address
for multidrop mode.
In the mode "
Fixed current output
" up to 63 sensors can be operated
on one two-wire cable (Multidrop operation). An address between 0
and 63 must be assigned to each sensor.
If you select the function "
Analogue current output
", a 4 … 20 mA
signal is output in multidrop mode.
In the mode "
Fixed current (4 mA)
" a fixed 4 mA signal is output inde-
pendently of the actual level.
The default setting is "
Analogue current output
" and the address "
00
".
In this menu item you gain access to the protected area where
you can enter special parameters. In exceptional cases, individual
parameters can be modified in order to adapt the sensor to special
requirements.
Change the settings of the special parameters only after having con-
tacted our service staff.
In this menu item the following information of the instrument can be
read out:
•
Instrument name and serial number
•
Hardware and software version
•
Date of the factory calibration as well as the last change via adjust-
ment instruments
•
Sensor characteristics such as approval, process fitting, seal,
meas. range etc.
Additional settings - Lin-
earization
Additional adjustments -
HART mode
Additional settings - Spe-
cial parameters
Info
