WIKA LSD-30 - Manual (Page 15)

15 WIKA operating instructions level switch model LSD-30
GB
11613033.01 01/2012 GB/D/F/E
4. Design and function
4.1 Description
A float with an internal magnet, which moves up and down at the guide tube, has an effect on the reed
measuring chain built into the guide tube (reed contacts + resistors). By means of the resistance value
of the measuring chain the fill level can be determined and converted into an electrical signal.
Via the electronics this electrical signal can be linked to various switching functions.
4.2 Scope of delivery
Cross-check the scope of delivery with the delivery note.
5. Transport, packaging and storage
5.1 Transport
Check the instrument for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
5.2 Packaging
Do not remove packaging until just before mounting.
Handle the level switch with care when removing it from the packaging. The measuring element must
not be exposed to high mechanical loads.
Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site,
sending for repair).
5.3 Storage
Permissible conditions at the place of storage:
Storage temperature: -20 ... +80 °C
WARNING!
Before storing the level switch (following operation), remove any residual media. This is of
particular importance if the medium is hazardous to health, e.g. caustic, toxic, carcinogenic,
radioactive, etc..
4. Design and function / 5. Transport, packaging and storage