18
► If possible, mount the unit in the middle of the fixture� The distance D2 must not
be below 40 mm, higher for probe lengths > 70 cm and in case of heavy soiling
(→ 6.1):
D2
150 mm
R
► The lower edge of the process connection should be flush with the installation
environment (see fig� 6-5)�
► Avoid non-flush installation (see fig� 6-6)�
► The height can be slightly corrected by means of appropriate sealing material
(e�g� Teflon tape)�
6.4.4 Installation in plastic tanks
150 mm
R
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 flange plate (= launching plate R) must be used
which sufficiently covers the drill hole�