IFM Electronic efector 160 LR70 Notice D'utilisation page 28

On 3:
For installation in open metal tanks, the unit must be mounted using
a metal fixture. It serves as a transfer plate (R). Minimum size: 150 x
150 mm for a square fixture, 150 mm diameter for a circular fixture.
If possible, mount the unit in the middle of the fixture. The distance
D2 must be min. 40 mm.
Installation location / installation environment
• The following minimum distances between the probe and tank
walls, objects in the tank (B), tank bottom and other level sensors
must be adhered to:
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