Endress+Hauser iTEMP TMT82 - Structure and Function of the Operating Menu

iTEMP TMT82 Electrical connection
Endress+Hauser 23
Shielding and grounding
The specifications of the HART
®
FieldComm Group must be observed when installing a HART®
transmitter.
-
.
1
2
3
4
A0014463
 14
Shielding and grounding the signal cable at one end with HART
®
communication
1 Optional grounding of the field device, isolated from cable shielding
2 Grounding of the cable shield at one end
3 Supply unit
4
Grounding point for HART
®
communication cable shield
5.6 Ensuring the degree of protection
The measuring system meets all the requirements of IP67 protection. Compliance with the
following points is mandatory following installation in the field or servicing in order to ensure
that IP67 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.
• The cables used for connection must be of the specified outside diameter (e.g. M20x1.5,
cable diameter 8 to 12 mm).
• Firmly tighten the cable gland. →  15,  24
• The cables must loop down before they enter the cable glands ("water trap"). This means
that any moisture that may form cannot enter the gland. Install the device in such a way
that the cable glands are not facing upwards. →  15,  24
• Replace unused cable glands with dummy plugs.
• Do not remove the grommet from the cable gland.