User Manual

ed. Any values not confirmed with [OK] will not be
saved.
6.4 Setup procedure
After VEGAPULS 68 is connected to power supply or
after voltage recurrence, the instrument carries out a
self-test for approx. 30 seconds. The following steps are
carried out:
l internal check of the electronics
l indication of the instrument type, the firmware version
as well as the sensor TAGs (sensor name)
l Output signal jumps briefly (approx. 10 seconds) to
the set interference current.
Then the actual measured value is displayed and the
corresponding current is transmitted to the cable
1)
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 descrip-
tion in the operating instructions manual of PLICSCOM
or in the online help of PACTware™ or DTM.
HART mode
Standard
Address 0
Because VEGAPULS 68 is a distance measuring
instrument, the distance from the sensor to the product
surface is measured. In order to have the actual level
displayed, an allocation of the measured distance to the
percentage height must be carried out. 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 distan-
ces, e.g. 10 % and 90 % . Starting point of these distance
values is always the seal surface of the thread or flange.
The actual level is then calculated on the basis of these
1)
The values correspond to the actual level as well as to the settings
already carried out, e.g. default setting.
Switch on phase
Address setting HART-
Multidrop
Parameter adjustment
34 VEGAPULS 68 - 4 ... 20 mA/HART
Setup with the indicating and adjustment module PLICSCOM
29261-EN-050202