Connection Check - Endress+Hauser iTEMP HART TMT162 Bedienungsanleitung

TMT162
Endress+Hauser
points must be taken into consideration (also see Fig. 6):
• The housing seals must be clean and undamaged before they are replaced in the sealing
rebate. If they are found to be too dry, they should be cleaned or even replaced.
• All housing screws and covers must be tightened.
• The cables used for connection must be of the correct specified outside diameter (e.g. M20
x 1.5, cable diameter from 0.315 to 0.47 in/8 to 12 mm).
• Tighten cable gland or NPT fitting.
• Loop the cable or conduit before placing into the entry ("Water sack"). This means that any
moisture that may form cannot enter the gland. Install the device so that the cable or
conduit entries are not facing upwards.
• Entries not used are to be blanked off using the blanking plates provided.
• The protective cable gland must not be removed from the NPT fitting.
Fig. 6: Connection hints to retain NEMA 4X (IP 67) protection
4.6

Connection check

After the electrical installation of the device, always perform the following final checks:
Device condition and specification
Are the device or the cables damaged (visual check)?
Electrical connection
Is the cable/conduit installation correctly separated, with no loops or
crossovers?
Are the cables' load relieved?
Have the cables been correctly connected? Compare with the
connection schematic on the terminals or see Fig. 5.
Are all terminal screws tightened?
Is the cable or conduit entry sealed?
Is the housing cover screwed tight?
Wiring
Hint
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Hint
-
-
See connection schematic on
the housing
Visual check
67