Ensuring The Degree Of Protection - Endress+Hauser iTEMP TMT162 Operating Instructions Manual

Wiring
20
3
4 2
1
5
+ -
4 3
S1 +
+
3
6 S2
- - -
1.
 11 Surge arrester function test
Ohmmeter in high-impedance range = surge arrester working
Ohmmeter in low-impedance range = surge arrester defective
+Hauser Service. Dispose of the defective surge arrester module as electronic waste.
For information on device disposal, see the Operating Instructions for the device.
→  43
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.
• All housing screws and screw caps must be firmly tightened.
• 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. →  12,  20
• 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 so that the
cable glands are not facing upwards. →  12,  20
• Cable glands not used are to be blanked off using the dummy plugs provided.
• Do not remove the grommet from the cable gland.
 12 Connection tips to retain IP67 protection
1
2
3 mm
3
2.
iTEMP TMT162
A0033829
.
. Notify Endress
A0024523
Endress+Hauser