Siemens SIPROCESS GA700 Kompaktbetriebsanleitung Seite 151

Note
Weatherproof installation
Install the device at a location where it is protected against:
• Direct heat and solar radiation
• Mechanical damage
• Vibrations
• Contamination
• Intrusion of dust
• Corrosive media
• Moisture
• Significant and rapid temperature fluctuations
• Strong air flow
Note
Loss of degree of protection in case of open enclosure
Damage to device if the enclosure is permanently open or not properly closed.
The degree of protection stipulated on the rating plate or in the technical specifications is no
longer guaranteed if the device is open or not completely closed.
• Install the device in accordance with the mounting instructions in order to ensure the
degree of protection.
• Close the enclosure after finishing the mounting or maintenance work.
Note
Dimensioning of the purging gas outlet
The following applies for the dimension of the minimum internal diameter and length of the
purging gas outlet:
• The permissible internal pressure in the enclosure may not be exceeded by the selected
design.
• The volume flow of purging gas during the pre-purging phase must amount to at least
60 l/min for the selected design. For additional information about the purging gas refer to
the section "Technical specifications for operation in hazardous areas (Page 107)".
Devices in explosion-proof design
Compact Operating Instructions, 11/2019, A5E35134047-04
Installing
4.3 Installation instructions
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