Density Meters

Density Meter

Oscillating U-tube Technology

A.KRÜSS Optronic Density Meters

The measurement of the density of an aqueous solution can be utilized to identify substances, to determine their quality or purity and to measure their concentration in binary or quasi-binary mixtures. It is a common tool utilized for quality assurance in the pharmaceutical, food & beverage, chemical and petrochemical industries.  For more information about Density Meter technology and applications, click here to visit the A KRÜSS Optronic Campus.

A.KRÜSS Optronic Density Meters utilize the highly accurate oscillating U-tube method in combination with controlled temperature for simple, fast and precise measurements of all flowable media, including viscous ointments and creams.

Key Features

  • Choose an accuracy of either +/- 0.001 g/cm3 (DS7700 Models) or +/- 0.0001 g/cm3 (DS7800 Models)
  • Options for Manual sample introduction, semi-automatic sample introduction with peristaltic pump and automated sample introduction with autosampler.
  • Ideal for aggressive samples and highly viscous samples
  • Requires a small sample volume compared to alternative techniques such as Pycnometry or an aerometer.
  • Pre-defined scales for density, relative density, Brix, concentration of alcohol, concentration of sulfuric acid. Any number of custom definable scales with conversions based on tables or formulas can be created.
  • Complete documentation of all measured values and parameters with many options for data export. Audit trail capability.
  • Easy to use intuitive software with large touch screen display
  • Intelligent User Administration with authorized levels
  • Precise temperature control
  • Easy to inspect for air bubbles
  • Low cost-per-test compared to other density measurement techniques
  • Compliance with 21 CFR Part 11, GLP/GMP, Pharmacopoeias (USP, BP, JP, Ph. Eur.), FDA, ISO, NIST, ASTM, ICUMSA, OIML, AOAC, HAACP


A.KRÜSS Optronic Products

Density Meters


  • Determine the quality or purity of a substance by measuring the density of the raw material, semi-finished or finished product. This is applicable in the pharmaceutical, chemical, petrochemical, food & beverage, cosmetics and flavors/fragrance industry
  • Measure the concentration of a substance in a binary or quasi-binary mixture.
  • Monitor chemical conversions and reaction dynamics
  • USP Method 841
  • ASTM D4052 Test Method for Density, Relative Density and API Gravity of Liquids by Digital Density Meter

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