Technological Highlights

Simple and intuitive operation

  • Contactless, continuous measurement
  • Stainless steel construction
  • Easy installation in existing pipelines
  • Various flange and product pipe options


State of the art technology

  • Minimal radiation exposure
  • High statistical accuracy and long-term stability
  • Very simple calibration

Features for high demands

The isotope Am-241 or Cm-244 is used as the radiation source. The advantage: Am-241 and Cm-244 have very low radiation energies, which correspond approximately to the energy of X-rays. The density measuring system InlineSENS offers high statistical accuracy and long-term stability by using a highly sensitive scintillation detector with patented drift compensation. The measuring system, which is made entirely of stainless steel, is permanently flanged to the pipeline and continuously measures the product density of liquids, suspensions, slurries, and bulk solids. In the case of the Am-241 version, the product pipe can also be supplied with a liner of Teflon (PTFE) or rubber if required. In the Cm-244 version, on the other hand, a polypropylene liner is installed as standard. Depending on the existing pipeline, various flange and product pipe options are available including DIN flanges, ASA flanges, and threaded connections between DN 40 and 65.

InlineSENS - Measuring unit for special applications

With the used isotopes Am-241 and Cm-244, the radiation absorption depends not only on the density but also strongly on the atomic number of the elements in the product to be measured. This means that changes in concentration can be measured even if the density of the mixture barely changes or does not change at all.

Application examples

  • Sugar industry: Measurement of thin and thick juice as well as milk of lime
  • Dairy industry: Concentration measurements of whole and skim milk and whey for the control of evaporators. Measurement of the degree of whipping of curd cheese
  • Beverage industry: Monitoring of the mixing of concentrate and water
  • Power plants: Concentration measurements of lime milk in flue gas desulfurization plants (scrubbers)
  • Starch production: Measurement of starch suspensions
  • Pulp and paper industry: Measurement of the ash content on paper slurries before/after the deinking process.
  • Chemical industry: Measurement of acids, alkalis, suspen­sions, concentration of anti-freezing compounds, determination of bulk density of washing powder
  • Textile industry: Measurement of foaming and degree of whipping of dye liquor

Berthold's measurement solution

DuoSeries LB 474

The DuoSeries LB 474 radiometric density system uses 2-wire technology.


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