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Capacitive level sensors

This sensor is used to measure level in tanks or sumps providing a 4-20mA output relating to the level of fluid in the tank. The L211 is suitable for conducting liquids such as water whilst the L212 is designed for use with clean, low viscosity non-conducting liquids such as oil. Both types consist of two concentric elements, an inner probe and an outer tube. Fluid rises in the cavity between the two concentric elements and the changes in capacitance are transposed into an analogue 4-20mA output signal.



Suitable for a wide range of media
Easy onsite range adjustment
4-20mA output
Unaffected by pressure or vacuum



Output: 4-20mA
Supply: 24Vdc
Insertion length: 0.5 to 8m variants
Process connection: 1" BSP
Process temperature: 100ºC max
Ambient temperature: -40to +85ºC
Max. pressure: 20bar @ 20ºC
Electrode insulation: Polypropylene
Termination housing: ABS
Electrical connections: 2-core screened cable


Order Code

Order Code Description
LL211 Capacitive water level sensors
LL212 Capacitive oil level sensors
(probe length: 0.5, 1, 1.5, 2, 2.5, 3, 5, 8m available on request)

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