Capacitive Sensors, Helping you find your level

The LevelMaster Capactive Sensor options from Rechner, which come complete with the widely used G½” thread, have been specially designed to cater for smooth and sticky media making them perfect for a huge range of level control situations in the pharmaceutical and food and beverage industries

The original LevelMaster Sensor range, which set new standards for the detection of sticky or highly conductive media, have now been complimented by a low dielectric version for dry and powdered products. Capable and dependable, these level sensors also feature Rechner’s ATEX All-In-One direct PNP connection thus eliminating a costly interface barrier typically needed in such installations.

The dielectric constant, DK or Ɛr, is the permittivity of a detected product which is the parameter measured by Capacitive Sensors. The higher the dielectric constant of the material, the easier it is to detect.

Reliable Solutions

One sensor cannot cover all applications and so there are two highly-reliable solutions. One uses high frequencies for the higher DK applications and a second, low-frequency option for very low DK media detection.

capacitive sensorThe LevelMaster-KS-801 series offers the optimum level control of conductive and/or sticky products with high a DK, such as fruit purées, syrup, sauces, vinegar-based preparations and conductive egg-based products such as batter and mayonnaise. These sensors are also excellent for all dairy applications including yogurt level control. For bulk materials with a lower DK, such as sugar, coffee, flour or maize meal, there’s the LevelMaster-KAS-80 range of ATEX certified sensors which can detect products with a dielectric of Ɛr 1.1.

LevelMaster Sensors are always set with a ‘Full’ configuration. A media optimisation facility then enables them to ignore any product build-up which has stuck onto the sensor face, so a wide range of media can be detected with just one setting.

Simple Set-Up

Set-up couldn’t be easier, once installed, sensor adjustment is done via an Easy Teach by Wire (ETW) facility, no PC or additional programming interface devices are required making initialisation straight forward and error-free whether at the sensor or the control panel.

The LevelMaster sensing tip is of an FDA-approved material plus it has traceability to EC 1935/2004. The build material of the Capacitive Sensors have a high-chemical resistance and the surface quality is also in accordance with the needs of the Pharmaceutical and Food Processing Industries, e.g. a roughness depth < 0.8 µm which guarantees excellent cleanability for CIP & SIP regimes.

As standard, each Level Sensors includes the Rechner Quatro-Protect facility, which has the highest protection against electrical noise, spikes and transients delivering the best safeguard available from all interference. For easier installation G½” welding adaptors as well as other process connections such as Tri-Clamp or Varivent adaptors are available.

Capacitive Sensor Overview

  • Options for high or low dielectric media
  • Reliable LevelMaster-KAS-80 detection of low dielectric powders or products
  • ATEX certified All-In-One sensor format for Dust Zone 20 and Gas Zone 1 installations
  • LevelMaster-KS-801 level detection of wet sticky and/or conductive products
  • Easy and reliable set-up for fit and forget installations
  • Approved housing materials for Food + Pharmaceutical
  • IP69K high sealed body for aggressive wash-down applications.
  • Quattro-Protect for the highest immunity against electrical interference
  • Media optimised to sense similar products with one setting
  • Solid state electronics with no moving parts for long service life
  • LevelMaster sensors can be mounted in any orientation
  • A large range of process fittings are available including Tri-Clamp and other formats.

capacitive sensors

See the Ranges

Kempston Controls stocks an extensive range of Rechner Sensors to help you solve your level detecting issues straight off-the-self, but not only do we have masses of sensors in stock we have access  to the entire Rechner Range! Whatever your sensor requirements, give us a call on +44 (0) 1933 411411 or email us at to discuss your needs.

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Kempston Controls is committed to finding you the ideal solution for your application. Call us today on +44 (0) 1933 411 411, email us at, or alternatively contact us here, we will be happy to help.

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