DP650 Vibrating Point Level Switch

Level switches for solids

The operating principle is the same for all vibrating probe level switches. A piezoelectric crystal is used to force a blade to oscillate at its fundamental frequency (also called natural resonance). When the blades come into contact with the process media the natural frequency of oscillation is dampened; the electronics sense the change in frequency which causes the unit to switch.

The DP650 Series has a single solid stainless steel rod which is vibrated by the piezo electric element. Thanks to its small size, it is ideal for use in small hoppers containing granular materials or pellets, like plastics, food or grain, but the circular construction of the DP650 means that it is not as sensitive to light materials. DP650 probes should only be used on materials which have a bulk density greater than 90 grammes per litre. 

Product Highlights

  • No moving parts to wear
  • No maintenance required

  • Very strong and robust

  • Unaffected by environmental changes

  • ATEX options

  • Simple to install

  • Measures products from 10grm/litre

  • Only sensitive near the probe tip

Technical Data

  • Max. Probe Length: 4m
  • Min. Product Density: 90gpl
  • Maximum Temperature: -20ºC to +80ºC
  • ATEX option: Yes