Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
Pressure measurement
Hauser
11
4
Pressure measurement
4.1
Calibration with reference pressure
Example:
In this example, a device with a 500 mbar (7.5 psi) sensor is configured for the 0...+300 mbar (4.5
psi)measuring range, i.e. 0 mbar and 300 mbar (4.5 psi) are assigned to the 4 mA value and 20 mA
value respectively.
Prerequisite:
• The pressure values 0 mbar and 300 mbar (4.5 psi) can be specified. The device is already
installed, for example.
!
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".
• 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 25: PROCESS VALUES.
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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.