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7.6.4 Installation in plastic tanks
D1
R
D1:
R:
Min� 150 mm
Launching plate
To enable sufficient transfer of the measured signal, note in case of installation in
plastic tanks or metal tanks with plastic lid:
► A drill hole with a minimum diameter of 150 mm must be applied to the plastic
lid�
► For installation of the unit, a metal flange plate (= launching plate, R) must be
used which sufficiently covers the drill hole (→ 12.1)�
► Ensure a minimum distance (= 80 mm) between the rod and the tank wall�
Adhere to the installation instructions (→ 7.2.2) to (→ 7.2.6), if necessary carry
out a tank adjustment�
When installed in plastic tanks, there may be deterioration caused by
electromagnetic interference from other devices� Corrective measures:
• Apply a metal foil to the outside of the tank�
• Apply a shielding screen between the level sensor and other electronic
units�
• Operation with coaxial probe efficiently protects the unit from
electromagnetic interference� Observe application area (→ 5.2)�
► Slightly grease the sensor thread with a suitable paste�
► Insert the unit into the process connection�
► Tighten it using a spanner� Tightening torque: 35 Nm
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