Feature

New ifm level switches are maintenance free and simple to use

Since they have no moving parts, the new LI151x-series capacitive level switches from ifm electronic need no maintenance and are an ideal replacement for conventional float-type level switches that are prone to mechanical failure and sticking in more viscous media.

01/04/2021 11:54:50

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The dependable, maintenance-free operation of the switches increases plant uptime while reducing operating costs.

LI151x level switches are also easy to use – they are pre-programmed for plug-and-play installation with water-based fluids and can be
reconfigured in just a few seconds for use with hydraulic and similar oils.

Four versions of the new switches are offered, with probe lengths from 132 to 737mm. All types have an integrated temperature sensor, two
switching outputs and an IO-Link digital interface. Users can configure the switching outputs as either two level outputs, or as one level output and one temperature output which, in many applications, saves money by eliminating the need
for a separate temperature sensor. Configuration of the switches can be performed either by using the built-in inductive ‘teach’ button, or via the IO-Link connection.

Suitable for use even in demanding environments, LI151x level switches have
an IP 68; 69K ingress protection rating and an operating temperature range of -25 to +85ºC. The probe diameter is 16mm. Accessories include mounting clamps, flanges and adaptors, as well as an extensive range of cables pre-terminated with M12 connectors.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.