BA_080_en_2022-01_11.02 Pressure transmitter PASCAL CV4
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6.4.5.1
Setting the damping
Using an adjustable damping you can eliminate fast pressure changes or peaks from having
direct influence to the output signal. The set value in seconds corresponds to the time con-
stant of an exponential rise. After a sudden pressure change, it takes the damping time to
reach 63.2% of the actual pressure at the output. After the damping time has elapsed three
times, 95% of the pressure is reached.
Figure 9: Damping effect
The damping affects the current output as well as the displayed pressure value.
6.4.5.2
Output function
You can set the output function proportionally rising to the measured value (selection "Lin-
ear") or proportionally falling (selection "Inverse"). You can also define the output signal by
a table with interpolation point, e.g. to represent a tank shape (selection "Table", display
software version 1.1.0 and above).
6.4.5.3
Setting the measurement range
You can freely set the lower and upper range value within the nominal range of the device.
Please note that when the turndown is increased, the measurement error also increases. If
you use a very small range you must therefore accept a significant measurement error. We
recommended a maximum turndown of 10:1.
The lower range value must be below the upper range value. For an inverse characteristic
curve, select the output function setting “inverse”.
