Endress+Hauser Cerabar M - 9.5 Pos. Zero Adjust

Commissioning with the FF configuration program Cerabar M, Deltabar M, Deltapilot M
144 Endress+Hauser
9.5 Pos. Zero Adjust
The pressure resulting from the orientation of the device can be corrected here.
(Pressure Transducer Block)
Parameter name Description
Pos. zero adjust/
PRESSURE_1_ACCEPT_ZE
RO_INSTALL
Options
Index: 38
Data type: unsigned8
Access: OOS
Due to the orientation of the device, there may be a shift in the measured value, i.e.
for example, when the container is empty or partially full, the Primary Value/
PRIMARY_VALUE parameter does not display zero.
This parameter provides the possibility of performing position adjustment where
the pressure difference between zero (set point) and the measured pressure need
not be known. (A reference pressure is present at the device.)
Example:
– Primary Value/PRIMARY_VALUE = 2.2 mbar
– Correct the Primary Value/PRIMARY_VALUE via the Pos. zero adjust/
PRESSURE_1_ACCEPT_ZERO_INSTALL parameter with the "Confirm" option.
This means that you are assigning the value 0.0 to the pressure present.
– Primary Value/PRIMARY_VALUE (after pos. zero adjust) = 0.0 mbar
The Calib. offset/PRESSURE_1_INSTALL_OFFSET parameter ( ä 144) displays
the resulting pressure difference (offset) by which the Primary Value/
PRIMARY_VALUE was corrected.
Options:
•Abort
•Confirm
Factory setting:
Abort
Calib. offset/
PRESSURE_1_INSTALL_O
FFSET
Entry
Index: 39
Data type: float
Access: OOS
Due to the orientation of the device, there may be a shift in the measured value, i.e.
for example, when the container is empty or partially full, the Primary Value/
PRIMARY_VALUE parameter does not display zero or the desired value.
This parameter provides the possibility of performing position adjustment where
the pressure difference between zero (set point) and the measured pressure is
known. (A reference pressure is not present at the device.)
Example:
– Primary Value/PRIMARY_VALUE = 2.2 mbar
– Via the Calib. offset/PRESSURE_1_INSTALL_OFFSET parameter, enter the
value by which the Primary Value/PRIMARY_VALUE should be corrected. To
correct the Primary Value/PRIMARY_VALUE to 0.0 mbar, you must enter the
value 2.2 here. (The following applies: PRIMARY_VALUE
new
=
PRIMARY_VALUE
old
– PRESSURE_1_INSTALL_OFFSET)
– Primary Value/PRIMARY_VALUE (after entry for calib. offset) = 0.0 mbar
Factory setting:
0.0