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5500 S
erieS
2.3.3
1
Low-pressure port (atmospheric pressure)
1.
Low pressure port (-): The atmospheric reference. This port shall always be connected such that
2
High-pressure port (enclosure pressure)
the air pressure present on this port is the atmospheric pressure surrounding the enclosure being
protected by pressurization. For monitoring the enclosure pressure.
2.
High pressure port (+): For monitoring the enclosure pressure. This port must always connect the
control unit to the monitored enclosure protected by pressurization.
18
M
P
d
anual
roducT
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Dimensions
Dimensions: External Mounting
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