Design And Function - WIKA RLT-1000 Operating Instructions Manual

2. Design and function

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2. Design and function
2.1 Functional description
Level sensors work on the float principle with magnetic transmission.
A permanent magnet built into the float  triggers, with its magnetic
field, the resistance measuring chain built into the guide tube . The
entire assembly corresponds to a 3-wire potentiometer circuit. The float
 changes its height with the level of the medium it is monitoring. The
measured resistance signal is proportional to the level. The measure-
ment voltage is very finely stepped due to the contact separation of the
resistance measuring chain and is thus virtually continuous.







WIKA operating instructions models RLT
≤ 30°
Connection housing

Cable gland

Spanner flats for screwing in

Sealing

Guide tube

Float

Float limitation

EN
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