11
UK
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Before installing and removing the unit: Make sure that no pressure
is applied to the system� Please note when the system pressure is
displayed in % of the span: "0" does not mean that no pressure is
applied to the system!
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The diaphragm must not be dented or cleaned with pointed or hard
objects!
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The system seal must not be in contact with the diaphragm�
The installation position of the sensor influences the hydrostatic pressure
of the fill fluid in the capillary tube of the diaphragm seal unit� A zero shift
(i�e� when no pressure is applied to the system, "zero" is not displayed
as a measured value) as a consequence of the installation position of the
sensor can be corrected via the menu
(→ 9.4.1)
�
Use in hygienic areas to 3-A:
orientation of the unit in pipes and tanks
Please note for optimised cleaning of
the measuring element according to
the 3-A criteria for hygienic areas:
To ensure that the medium can
completely flow off the area of the
diaphragm seal when the pipes or
tanks are empty, choose positions 1 - 3
of the generally possible installation
positions 1 - 5 (see figure on the right)�
Use in hygienic areas to EHEDG:
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Make sure that the sensor is integrated into the system according to EHEDG�
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Use seals with defined seal compression!