Endress+Hauser PROline promag 23, Руководство по эксплуатации, Страница: 38 / 108

4 Wiring PROline Promag 23
38 Hauser
4.3 Degree of protection
The devices fulfill all the requirements for IP 67. Compliance with the following points is
mandatory following installation in the field or servicing, in order to ensure that IP 67 pro-
tection is maintained:
The housing seals must be clean and undamaged when inserted into their grooves.
The seals must be dried, cleaned or replaced if necessary.
All threaded fasteners and screw covers must be firmly tightened.
The cables used for connection must be of the specified outside diameter
(see Page 76).
Firmly tighten the cable entries (Fig. 28).
The cables must loop down before they enter the cable entries (“water trap”, Fig. 28).
This arrangement prevents moisture penetrating the entry. Always install the
measuring device in such a way that the cable entries do not point up.
Remove all unused cable entries and insert plugs instead.
Do not remove the grommet from the cable entry.
Fig. 28: Installation instructions, cable entries
"
Caution:
Do not loosen the threaded fasteners of the Promag sensor housing, as otherwise the
degree of protection guaranteed by Hauser no longer applies.
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