Cerabar S/Deltabar S Description of parameters (ToF Tool)
Endress+Hauser 93
POS. ZERO ADJUST
Entry
Position adjustment – the pressure difference between zero (set point) and the measured
pressure need not be known. (A reference pressure is present at the device.)
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, the MEASURED VALUE parameter does not
display zero.
Example:
– MEASURED VALUE = 2.2 mbar
– 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 CALIB. OFFSET parameter displays the resulting pressure difference (offset) by which
the MEASURED VALUE was corrected.
Prerequisite:
• This parameter is displayed for Deltabar S and Cerabar S with gauge pressure sensors.
Options:
• Abort
•Confirm
Factory setting:
0
POS. INPUT VALUE
Entry
Position adjustment – the pressure difference between zero (set point) and the measured
pressure need not be known. (A reference pressure is present at the device.)
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, the MEASURED VALUE parameter does not
display zero or the desired value.
Example:
– MEASURED VALUE = 0.5 mbar
– For the POS. INPUT VALUE parameter, specify the desired set point for the
MEASURED VALUE, e.g. 2 mbar.
(MEASURED VALUE
new
= POS. INPUT VALUE)
– MEASURED VALUE (after entry for POS. INPUT VALUE) = 2.0 mbar
– The CALIB. OFFSET parameter displays the resulting pressure difference (offset) by
which the MEASURED VALUE was corrected.
CALIB. OFFSET = MEASURED VALUE
old
– POS. INPUT VALUE,
here: CALIB. OFFSET = 0.5 mbar – 2.0 mbar = – 1.5 mbar)
Prerequisite:
• This parameter is displayed for Cerabar S with absolute pressure sensors.
Factory setting:
0.0
DAMPING VALUE
Entry
Enter damping time (time constant τ).
The damping affects the speed at which all subsequent elements, such as the on-site
display, measured value and OUT value of the Analog Input Block react to a change in the
pressure.
Input range:
0.0...999.0 s
Factory setting:
2.0 s or as per order specifications
ToF Tool, Table 1: QUICK SETUP "Pressure"
Parameter name Description
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