Endress+Hauser HART iTEMP TMT142B, Руководство по эксплуатации

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Electrical connection iTEMP TMT142B
16 Hauser
5.5 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. →  8,  16
• 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. →  8,  16
• Replace unused cable glands with dummy plugs.
• Do not remove the grommet from the cable gland.
A0024523
 8 Connection tips to retain IP67 protection
5.6 Post-connection check
Device condition and specifications Notes
Is the device or cable undamaged (visual check)? --
Electrical connection Notes
Does the supply voltage match the information on the
nameplate? U = 11 to 36 V
DC
Do the cables have adequate strain relief? Visual inspection
Are the power supply and signal cables connected
correctly? →  11
Are all the screw terminals sufficiently tightened?
Are all cable entries mounted, tightened and leak-tight?
Housing cover installed and firmly tightened?