Proline Prowirl 73
Wiring
Hauser
19
3.3
Degree of protection
The devices meet all the requirements for IP 67.
After mounting in the field or service work, the following points have to be observed to ensure
that IP 67 protection is retained:
• Install the measuring device in such a way that the cable entries do not point upwards.
• Do not remove the seal from the cable entry.
• Remove all unused cable entries and plug them with suitable drain plugs.
3.4
Post-connection check
• Are cables or the device damaged (visual inspection)?
• Does the supply voltage match the specifications on the nameplate?
• Are the power supply and signal cables connected correctly?
• Do the cables used comply with the necessary specifications?
• Do the mounted cables have adequate strain relief and are they routed securely?
• Is the cable type route completely isolated? Without loops and crossovers?
• Are all of the screw terminals correctly tightened?
• Are all the cable entries installed, firmly tightened and correctly sealed?
• Cable routed as a "water trap" in loops?
• Are all the housing covers installed and correctly tightened?
In addition, for measuring devices with fieldbus communication:
• Are all the connecting components (T-boxes, junction boxes, connectors, etc.) connected
with each other correctly?
• Has each fieldbus segment been terminated at both ends with a bus terminator?
• Has the max. length of the fieldbus cable been observed in accordance with the specifications?
• Has the max. length of the spurs been observed in accordance with the specifications?
• Is the fieldbus cable fully shielded and correctly grounded?
A0007549
Tighten the cable entries correctly.
A0007550
The cables must loop down before they enter the cable
entries ("water trap").
