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Microwave barrier emitter
Soliwave FQR50

Emitter for non-contact point level detection in bulk solids

  • Soliwave FQR50 aluminum housing ©Endress+Hauser
  • Soliwave FQR50 stainless steel housing ©Endress+Hauser

The Soliwave FQR50 microwave barrier uses a contact-free procedure for detection of point levels. It can be installed in containers, conduits, shafts or on free fall shafts. It is possible to take a measurement through non-metallic container materials from the outside. Suitable as point level switch for controlling and counting all types of bulk solids. It interacts with the Soliwave FDR50 receiver.


  • Very reliable measurement thanks to adjustable sensitivity and indication of the signal strength on the receiver

  • Mechanical robust solution ensures cost savings over the whole life cycle of the product: No wear and tear, long serviceable life, maintenance free

  • Safe solution unaffected by process conditions and even suited for hazardous areas

Field of application

Typical bulk solids are: Wood chips, wood dust or flour, plaster, cement, ash, paper or cardboard shred, gravel, sand, dried powders in general, bags, boxes.

  • Process connections: Threads

  • Ambient temperature: -20 to +70°C (-4 to +158°F)

  • Measuring range: Max. 8m (26ft) or 20m (65ft) (depending on the version)

  • International explosion protection certificates

Features and specifications

Documents / Manuals / Software

Accessories / Spare parts


Endress+Hauser AG
Kägenstrasse 2 4153 Reinach BL Switzerland
Tel.: +41 61 715 7700
Fax: +41 61 715 2888
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