Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
Appendix
Hauser
111
Expert
È
Measurement
È
Basic setup
Parameter name
Description
Pos. zero adjust (007)
(Deltabar M and relative
pressure sensor)
Selection
Position adjustment – the pressure difference between zero (set point) and the measured
pressure need not be known.
Example:
– Measured value = 2.2 mbar (0.033 psi)
– You correct the measured value via the "Pos. zero adjust" parameter with the
"Confirm" option. This means that you are assigning the value 0.0 to the pressure
present.
– Measured value (after pos. zero adjust) = 0.0 mbar
– The current value is also corrected.
Factory setting:
Abort
Calib. offset (192) / (008)
(absolute pressure sensor)
Selection
Position adjustment – the pressure difference between the set point and the measured
pressure must be known.
Example:
– Measured value = 982.2 mbar (14.73 psi)
– You correct the measured value with the value entered (e.g. 2.2 mbar (0.033 psi)) via
the "Calib. offset" parameter. This means that you are assigning the value 980.0 (14.7
psi) to the pressure present.
– Measured value (after pos. zero adjust) = 980.0 mbar (14.7 psi)
– The current value is also corrected.
Factory setting:
0.0
Damping switch (164)
Display
Displays the switch position of DIP switch 4 which is used to switch the damping of the
output signal on and off.
Display:
• Off
The output signal is not damped.
• On
The output signal is damped. The attenuation constant is specified in the "Damping
value" parameter (017) (184)
Factory setting
On
Damping value (017)
Entry
Enter the damping time (time constant
). The damping affects the speed at which the
measured value reacts to changes in pressure.
Input range:
0.0 to 999.0 s
Factory setting:
2.0 or as per order specifications
Press. eng. unit (125)
Selection
Select the pressure unit.
If a new pressure unit is selected, all pressure-specific parameters are converted and
displayed with the new unit.
Options:
• mbar, bar
• mmH2O, mH2O, inH2O
• ftH2O
• Pa, kPa, MPa
• psi
• mmHg, inHg
• kgf/cm
2
Factory setting:
mbar or bar depending on the sensor nominal measuring range, or as per order
specifications
