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6.4.4 Installation in plastic tanks

150 mm

To enable sufficient transfer of the measured signal, note in case of installation in

plastic tanks or metal tanks with plastic lid:

► The plastic lid must be provided with a drill hole with a minimum diameter of

150 mm�

► For installation of the unit, a metal flange plate (= launching plate R) must be

used which sufficiently covers the drill hole�

► Ensure the minimum distance (= 80 mm) between rod and tank wall, higher for

probe lengths > 700 mm and in case of heavy soiling (→ 6.1.1).

When installed in plastic tanks, there may be deterioration caused by

electromagnetic interference� 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� Please note the restrictions regarding the

application area (→ 4.3).

6.5 Installation of the unit with coaxial probe in the tank

► Seal the process connection:

- For pipes with G¾ process connection: slide the supplied seal onto the thread

of the coaxial pipe�

- For pipes with ¾" NPT process connection: apply a suitable sealing material

(e�g� Teflon tape)�

► Screw the unit with the coaxial pipe into the tank and tighten it�

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IFM LX Series Specifications

General