Endress+Hauser Proline Prowirl 73 - Degree of Protection; Post-Connection Check

Wiring Proline Prowirl 73
34 Endress+Hauser
4.3 Degree of protection
The devices fulfill all the requirements for IP 67 (NEMA 4X) degree of protection.
Compliance with the following points is mandatory following installation in the field or servicing in
order to ensure that IP 67 (NEMA 4X) protection is maintained:
• The housing seals must be clean and undamaged when inserted into their grooves. Dry, clean or
replace the seals if necessary. If the device is used in a dust atmosphere, only use the associated
Endress+Hauser housing seals.
• All housing screws and screw caps must be firmly tightened.
• The cables used for connection must be of the specified outside diameter (ä 82, cable entries).
• Tighten the cable entries to ensure they are leak-tight (Point a å 24).
• To prevent moisture from penetrating the entry (Point b å 24), the cables must form a loop
hanging downwards ("water trap") upstream from the cable entry.
• Install the measuring device in such a way that the cable entries do not point upwards.
• Remove all unused cable entries and insert plugs instead.
• Do not remove the grommet from the cable entry.
A0001914
Fig. 24: Installation instructions for cable entries
4.4 Post-connection check
Perform the following checks after completing electrical installation of the measuring device:
ab
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 to 36 V DC (with HART: 18 to 36 V DC)
Ex-i/IS and Ex-n: 12 to 30 V DC (with HART 18 to 30 V DC)
Ex-d/XP: 15 to 36 V DC (with HART 21 to 36 V DC)
–
Do the cables used comply with the specifications? ä 26,
ä 82
Do the cables have adequate strain relief? –
Are the cables for power supply/current output, frequency output (optional) and
grounding connected correctly?
ä 27
Only remote version: is the connecting cable between sensor and transmitter
connected correctly?
ä 25
Are all terminals firmly tightened? –
Are all the cable entries installed, tightened and sealed?
Cable run with "water trap"?
ä 34
Are all the housing covers installed and tightened? –