Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
Pressure measurement
Hauser
13
!
Note!
• See also Operating Instructions Deltabar S (BA00270P), Section 6.6 "Differential pressure
measurement", Cerabar S (BA00271P), Section 6.4 "Pressure measurement" or Deltapilot S
(BA00332P), Section 6.5 "Pressure measurement".
• Due to the orientation of the device, there may be a shift in the measured value, i.e. when the
container is empty or partly filled, the MEASURED VALUE parameter does not display zero.
To perform a position adjustment see also Page 53, Table 6: Position adjustment.
• For a description of the parameters mentioned, see
– Page 45, Table 2: MEASURING MODE
– Page 53, Table 6: POSITION ADJUSTMENT
– Page 55, Table 7: BASIC SETUP.
• For a description of further relevant parameters, see
– Page 96, Table 15: EXTENDED SETUP
– Page 121, Table 27: PROCESS VALUES.
#
Warning!
If the measuring mode is changed, the span setting (URV) must be verified in the "Calibration"
"Basic Setup" operating menu and, if necessary, reconfigured.
!
Note!
• You can also perform calibration without reference pressure by means of the QUICK SETUP
menu.
See Page 47 ff, Table 3: QUICK SETUP menu.
• You can also specify a customer-specific unit. See parameter description for PRESS. ENG. UNIT
(
Page 56).
Description
1
If necessary, select the "Pressure" measuring mode via
the MEASURING MODE parameter.
On-site display:
Menu path: GROUP SELECTION
MEASURING
MODE
Digital communication:
Menu path: OPERATING MENU
SETTINGS
BASIC SETUP
MEASURING MODE
P01-PMP71xxx-19-xx-xx-xx-000
P01-xxxxxxxx-05-xx-xx-xx-010
Fig. 2:
Calibration without reference pressure
1
See table, step 4.
2
See table, step 5.
2
On-site display:
Select BASIC SETUP function group.
Menu path: GROUP SELECTION
OPERATING
MENU
SETTINGS
BASIC SETUP
3
Select a pressure unit via the PRESS. ENG. UNIT
parameter, here mbar for example.
4
Select SET LRV parameter.
Enter value, here 0 mbar, for the SET LRV parameter
and confirm. This pressure value is assigned to the lower
current value (4 mA).
5
Select SET URV parameter.
Enter value, here 300 mbar (4.5 psi), for the SET URV
parameter and confirm. This pressure value is assigned to
the upper current value (20 mA).
6
Result:
The measuring range is set for 0...+300 mbar (4.5 psi).
20
4
I
[mA]
0
300
p
[mbar]
➀
➁