RHOTEC, concentration evaluation by density measurement

Concentration evaluation by density measurement

Description

It continuously measures the density of liquids. Designed for applications that require maximum sensitivity and high accuracy, this device is used in various industries all around the world. Breweries and beverage manufacturers determine alcohol or dissolved sugar contents in-line with RHOTEC. Dairies rely on RHOTEC to measure milk and cream fat. In numerous pharmaceutical and chemical applications RHOTEC is used to control the concentration of acids, caustics and other solutions – but also for monitoring the quality of raw materials and final products. For density measurement, the liquid flows through a U-shaped tube. While the tube is electronically excited to oscillate at resonance, the oscillation frequency is observed. Any change in the fluid density has an impact on the detected signal and can thus be identified. As a specific property of each liquid, the correlation between concentration and density can be described by a mathematical polynomial. With decades of experience and own laboratory facilities, we have a particular knowledge of the polynomials for a huge number of products. Any temperature drifts of the measured signal are automatically compensated for by an internal Pt1000 sensor. RHOTEC displays various units, e.g. vol.%, mass %, °Brix and °Plato.

  • Measuring Range: 0 to 3 g/cm3
  • Accuracy: ± 0.0001 g/cm3
  • Repeatability: ± 0.00001 g/cm3 Response
  • Time < 1 s
  • Pressure of Operation: max. 50 bar
  • Temperature of Operation: – 25 to + 125 °C
  • Temperature Compensation: Pt1000
  • Material: 1.4571/AISI 316Ti, Hastelloy C276, Monel 400, Incoloy 82, Tantalum, others on request
  • Connections: thread 3/8”, compatible to Varivent© Inline-Housings, DN40 – DN150, others on request
  • Input: 6 x digital (24 VDC)
  • Output: 3 x digital (24 VDC) & 2 x analog (4 – 20 mA)
  • Sensor (w/o local display)
  • Power Supply: 24 VDC
  • Hygienic Execution, Full CIP Capability and Maintenance Free