Proline t-mass 65 PROFIBUS DP/PA
Electrical connection
Hauser
35
5.4
Degree of protection
The measuring devices fulfill all the requirements for IP 67 (NEMA 4X).
Compliance with the following points is mandatory following installation in the field or ser-
vicing, in order to ensure that IP 67 (NEMA 4X) protection 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 (cable entry
• Firmly tighten the cable entries (a).
• The cables must loop down before they enter the cable entries ("water trap") (b). 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 blanking plugs instead.
• Do not remove the grommet from the cable entry.
A0001914
Fig. 25:
Installation instructions, cable entries
a
b
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