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4 Maintenance
4.1 Zero reset
Perform the zero reset without tubes Afterwards connect the tubes again
Use cases of the zero reset
● As the allowed mounting position is vertical only (see "Mounting [➙ 4]") the
sensor does not have to be recalibrated during commissioning in the case of
normal pressure measurement.
● Only in case of relative pressure measurement (pressure nipple "-" connected
to ambient atmosphere) a zero point calibration is recommended during
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