4 Wiring
Proline Prowirl 72
26
E Hauser
4.3
Degree of protection
The devices fulfill all the requirements for IP 67 degree of protection. Compliance with the
following points is mandatory following installation in the field or servicing in order to ensure that
IP 67 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. If the device is used in a dust atmosphere, only the
associated Hauser housing seals can be used.
• All housing screws and screw caps must be firmly tightened.
• The cables used for connection must be of the specified outside diameter (see Page 61).
• Firmly tighten the cable entry (Fig. 20).
• The cables must loop down before they enter the cable entries (“water trap”, Fig. 20). This
arrangement prevents moisture penetrating the entry. Always install the measuring device in such
a way that the cable entries do not point up.
• Replace all unused cable entries with dummy plugs.
• Do not remove the grommet from the cable entry.
A0001914
Fig. 20:
Installation instructions for cable entries
4.4
Post-connection check
Perform the following checks after completing electrical installation of the measuring device:
Device condition and specifications
Notes
Are cables or the device damaged (visual inspection)?
-
Electrical connection
Notes
Does the supply voltage match the specifications on the nameplate?
• Non-Ex: 12...36 V DC (with HART: 18...36 V DC)
• Ex i and Ex n: 12...30 V DC (with HART 18...30 V DC)
• Ex d: 15...36 V DC (with HART 21...36 V DC)
-
Do the cables used comply with the specifications?
see Page 22, 61
Do the cables have adequate strain relief?
-
Are the cables for power supply/current output, frequency output (optional) and
grounding connected correctly?
see Page 22
Only remote version: is the connecting cable between sensor and transmitter
connected correctly?
see Page 21
Are all terminals firmly tightened?
-
Are all the cable entries installed, tightened and sealed?
Cable run with “water trap”?
see Page 26
Are all the housing covers installed and tightened?
-
Содержание Proline Prowirl 72
Страница 4: ...QUICK SETUP for quick commissioning Proline Prowirl 72 4 Endress Hauser...
Страница 20: ...3 Installation Proline Prowirl 72 20 Endress Hauser...
Страница 42: ...6 Commissioning Proline Prowirl 72 42 Endress Hauser...
Страница 44: ...7 Maintenance Proline Prowirl 72 44 Endress Hauser...
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