Degree Of Protection; Post-Connection Check - Endress+Hauser RIA141 Manuel De Mise En Service

Wiring
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5.3

Degree of protection

The devices fulfil all the requirements for IP 67 degree of protection. Compliance with the following
points is mandatory following installation or servicing in order to ensure that IP 67 protection is
maintained:
• The housing seal must be clean and undamaged when inserted into the seal groove. The seal may
have to be cleaned, dried or replaced.
• The cables used for connection must be of the correct specified outside diameter (e.g. M20 x 1.5,
cable diameter from 8 to 12 mm).
The cables must loop down before they enter the cable entries (see Fig. 9).
This arrangement prevents moisture penetrating the entry. Install the device so that the cable
entries are not facing upwards.
• Replace any unused cable entries with dummy plugs (contained in the scope of delivery).
• The grommet used should not be removed from the cable entry.
• The housing cover and the cable entry must be well tightened.
Fig. 9: Connection instructions to retain IP67 protection
5.4

Post-connection check

Perform the following checks after completing electrical installation of the device:
Device condition and specification
Are the device or the cables damaged?
Electrical connection
Is the cable type route completely isolated - without loops
and cross-overs?
Are the cables strain relieved?
Is the terminal assignment correct? Compare with the
connection diagram of the terminal block
Are all terminal screws tightened?
Is the cable gland sealed?
Is the housing cover tightened?
Note
Visual inspection
Note
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Visual inspection
Visual inspection
Visual inspection