Ingress Protection - Siemens SITRANS FX330 Operating Instructions Manual

ELECTRICAL CONNECTIONS
4

4.6 Ingress protection

The signal converter electronics housing meets the requirements for IP66/67 in accordance with
EN 60529 both for the compact and for the remote version.
CAUTION!
After all servicing and maintenance work on the measuring device, the specified ingress
protection category must be ensured again.
Figure 4-10: Cable feedthrough
Therefore it is essential to observe the following points:
• Use only original gaskets. They must be clean and free of any damage. Defective gaskets must
be replaced.
• The electrical cables used must be undamaged and must comply with regulations.
• The cables must be laid with a loop 1 upstream of the measuring device to prevent water
from getting into the housing.
• The cable feedthroughs 2 must be tightened. Note that the clamping range of the cable
feedthrough corresponds to the outer diameter of the cable.
• Align the measuring device so that the cable feedthrough is never facing up 3.
• Close any unused cable feedthroughs using blind plugs 4 suitable for the protection category.
• Do not remove the required cable bushing from the cable feedthrough.
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SITRANS FX330
05/2016 - A5E36751269-AA