Float level sensor LI51 series
for liquidsdigital outputfor storage tanks

Float level sensor - LI51 series - ifm electronic - for liquids / digital output / for storage tanks
Float level sensor - LI51 series - ifm electronic - for liquids / digital output / for storage tanks
Float level sensor - LI51 series - ifm electronic - for liquids / digital output / for storage tanks - image - 2
Float level sensor - LI51 series - ifm electronic - for liquids / digital output / for storage tanks - image - 3
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Characteristics

Technology
float
Medium
for liquids
Interface
digital output
Applications
for storage tanks
Other characteristics
maintenance-free, submersible, IP67, IP65
Level range

Max.: 737 mm
(29.02 in)

Min.: 132 mm
(5.2 in)

Process pressure

Max.: 0.5 bar
(7.25 psi)

Min.: 0 bar
(0 psi)

Process temperature

Max.: 65 °C
(149 °F)

Min.: 0 °C
(32 °F)

Description

Optimised for use in hydraulic oils and coolants No maintenance necessary, free from mechanical parts Easy adjustment and setting of the output function via inductive teach button Improved performance thanks to IO-Link 2 configurable switching outputs defined by media or temperature Adjustment to different media (e.g. water/oil) Capacitive point level switch LI The LI513 measures media such as oil and water without using any moving parts. Reliable and maintenance-free. Build-up which causes mechanical sensors to stick has no detrimental effect. The same applies to water temperatures of up to 85°C. Talking about temperature: Thanks to the second switching output this measurement value can easily be used for process control in addition to level measurement. Alternatively, it is possible to monitor the level of two different media. If you want to, you can drop the LI into cold (or hot) water. The factory setting makes it possible. Everything else the sensor is taught instantly using the inductive teach button or IO-Link parameter-setting. As you can see the LI513 has a head start over any float. Even though – or rather because, it has no moving parts. Capacitive and maintenance-free level measurement.

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Exhibitions

Meet this supplier at the following exhibition(s):

ELECTRONICA 2026
ELECTRONICA 2026

10-13 Nov 2026 Munich (Germany) Hall C1 - Stand 124

  • More information
    SPS 2026
    SPS 2026

    24-26 Nov 2026 Nuremberg (Germany) Hall 7A - Stand 302

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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