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8
Assembly/Installation
The instruments may be installed from the inside or from the outside of the tank, in according to the selected process
connection. The process connection can be threaded or flanged. The level switches are always supplied completed
with gasket to be always placed between the tank wall surface and the instrument connection.
The correct installation of our level switches must be in vertical position, with 30° maximum angle.
Use of suitable tools for the assembly and the disassembly of the instrument are recommended.
For instruments with threaded connection, the wrench must be used on hexagon of the fitting.
8.1 Preparation
To ensure safe working during installation and maintenance, the system has to be
Depressurized within the relevant plant for the purpose of repair or inspection,
Functional checked on site.
During assembly/installation work, the system must be secured against being switched on again.
It is recommended to perform the assembly / installation without an existing explosive atmosphere (e.g. ventilated
room).
8.2 Requirements for the installation site
Check the suitability of the device for the process media to be controlled,
Protection against any kind of mechanical vibration,
The level switch must be mounted in a top vertical position,
The floats must be able to swim freely on the fluid surface.
8.3 Process connection
The process connections comply with the general technical standards for threads or flanges. Thread types and materials
of the process connections may vary depending on the application.
Assembly of the device only by authorized and qualified personnel.
The device must be integrated into the equipotential bonding of the process installation (e.g. by using an electrically
conductive seal).
When connecting the device, the tank must be depressurized.
Only use the appropriate open-end wrench to tighten the sealant on the intended wrench flat.
The tightening torque depends on the sealant used.
