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DPRn Density Transducers


DPRn density transducers - Measuring principle

Sample flows continuously through the vibrating U-tube sensor. The characteristic frequency of vibration is measured and the separate mPDS evaluation unit instantly translates the signal into a density or concentration value. Each DPRn transducer is paired with an mPDS evaluation unit. Temperature compensation is achieved using an integrated Pt1000 temperature sensor.

DPRn 417/DPRn 427 Density Transducer

  • Typical applications: chemicals, oil, beverages, etc.
  • Recommended for applications requiring the highest precision
  • Materials (wetted parts): Hastelloy C276, Stainless Steel 316 Ti or Incoloy 825
  • Inner diameter: 6.6 mm
  • PTB type approval for fiscal measurement (optional)
  • ATEX certificate (optional)
  • 3A certificate for extreme sanitary requirements (optional)
  • Measurement at high temperatures up to 150 °C (optional)

Measured samples

  • Fuels (regular petrol, premium, diesel, domestic fuel oil, aviation fuel etc.)
  • Other low-viscous petroleum products, intermediate and end products of refineries, crude oil, LPG
  • Ethanol
    All low-viscous liquids which the oscillator is resistant to






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