capacitive level switch / electronic / for corrosive liquids / for solids
RFnivo® 3100 UWT GmbH Level Control



  • Technology:

    capacitive, electronic

  • Medium:

    for corrosive liquids, for solids

  • Other characteristics:

    explosion-proof, maintenance-free, rugged, IP66, corrosion-resistant, threaded, vertical, flange, side-mount, horizontal, suspended

  • Applications:

    for tanks, for the food industry, for hazardous locations, for hygienic applications, for non-conductive vessels

  • Process pressure:

    Max.: 25 Pa (0 psi)

    Min.: -1 Pa (-0 psi)

  • Process temperature:

    Max.: 500 °C (932 °F)

    Min.: -40 °C (-40 °F)


Protection Plus with innovative corrosion protection
Capacitive RF probe with full coating protection

Longer service life due to increased corrosion resistance
UWT has further developed the RFnivo® 3100 capacitive level limit switch for this type of measurement task in the dust extraction of flue gases so that it meets and withstands the demanding conditions. All process-contacting parts of the sensor have been designed to be completely corrosion-resistant. Firstly, the RF boom is coated with PFA Teflon® and, secondly, a section of the process connection thread has been completely made of PTFE so that all parts in contact with the process are fully corrosion-protected.

Probe boom with PFA full coating
The shaft of the RFnivo® limit switch is fully coated with PFA Teflon®. It is resistant to almost all chemicals and can withstand high temperatures. In contrast to a spray coating, the type of coating of the RF probe is much more resilient, up to 1.5mm thick, and thus has more protection in abrasive applications.
The RFnivo® 3100 with fully coated probe boom can be made with a boom length from 200mm up to 1500mm and can therefore be used in a variety of installations.

Process connection thread made of PTFE
In order to ensure full and comprehensive protection of the process-contacting probe extension the process connection thread, which is connected to the boom, is made completely from PTFE Teflon®.