Product Description
The P104 high-frequency level sensor is designed for industrial use for limit sensing of the level of liguid and paste-like media. The high-frequency level sensor may be a direct replacement of a vibrating level sensor, or of a capacity level sensor in case of more demanding applications. The media may be electrically conductive or non-conductive with any permittivity. It can be
installed in metal or plastic tanks, pipes, filling tanks, sumps, etc.
It is mainly designed for mounting into the wall of a tank or pipe, in which the actual detection of the level will take place. The sensor works in the high frequency band, enabling reliable detection of the level of media, and eliminating deposits or foam on the electrode. The sensor suppresses the influence of deposits of viscous media (ketchup, yoghurt, pastes, syrups, jams and jellies, creams, soap) as well as electrically conductive adhesive products (detergents, alkalis, chemicals).
Can differentiate a specific media from others - the "Medium window" function. E.g. it can differentiate oil from water and air, detect only beer foam and ignore beer and air,etc.
The sensor is made from a stainless-steel housing at one end terminated by a sensing electrode, and terminated at the other and by an ending with a status indicator, control elements and electrical connection.
Available as N: For use in normal atmospheres and applications.
Available as Xi: Explosion proof / intrinsically safe for hazardous (ex
plosive) areas.
Available as XiM: Explosion proof / intrinsically safe for use in mines with methane or flammable dust presence danger.
P104 High-Frequency Limit Liquid Level Switch with Triclamp Options
Price dependent upon specification — inquire below
Product Highlights
- For level switching a wide range of fluids, paste like materials and more
- For use with conductive and non-conductive liquids and with any permittivity
- Recognizes the intended media and will not react to substances with a lower or higher permittivity
- Features a unique “Medium Window” function that allows the sensor to detect only the target liquid or paste while ignoring foam, buildup, or other non-target media
- Available in intrinsically safe designs for explosive gas (Zone 0) and mining environments, complying with ATEX and EN 60079 standards
- Operates in a wide range from -40°F to +221°F (-40°C to +105°C), making it suitable for both refrigerated and high-temperature process systems
- Constructed from 316L and 304 stainless steel, with PEEK or PTFE-coated electrodes, and a variety of sanitary Tri-Clamp and threaded connections for food, pharma, and chemical use
- Performs reliably even in sticky, viscous, or electrically conductive substances, such as yogurt, creams, oils, acids, or slurries
- Certified to EN 61508 functional safety standard, suitable for applications requiring overfill and anti-idle protection in critical control systems
- Supports PNP, NAMUR, and PNP with diagnostics outputs, easily integrated with PLCs or safety systems in both standard and hazardous areas
- Includes a magnetic programming pen for fast, non-invasive calibration through the sensor housing, enabling basic or advanced media setup without disassembly
- Withstands up to 1450 PSI (10 MPa) of overpressure in most variants, suitable for pressurized tanks and pipelines
- Installs easily in horizontal, vertical, or angled orientations using G-thread or Tri-Clamp process connections, and includes multiple cable gland or M12 connector options for any application scenario
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