Wiring
Loop-powered display unit
24
TX20
A0018895
9
Functional grounding terminal in field housing
TX20
A0018908
10
Ground terminal on field housing
5.7
Degree of protection
5.7.1
Field housing
The devices meet all the requirements of IP66. It is absolutely essential to comply with
the following points to ensure this protection is guaranteed after mounting or servicing
the device:
• The housing seal must be clean and undamaged when inserted into the groove. The
seal must be cleaned, dried or replaced if necessary.
• The cables used for connection must be of the specified outside diameter (e.g. M16 x
1.5, cable diameter 5 to 10 mm (0.2 to 0.39 in)).
• Mount the measuring device in such a way that the cable entries point downwards.
• Replace unused cable entries with dummy plugs.
• The housing cover and the cable entries must be firmly tightened.
