Atago DD-7 Digital Differential Refractometer

  • Uses Differential Optical Refraction method to obtain extremely high-accuracy results of ±0.005% Brix by measuring the difference in concentrations of your sample against a known reference solution that is within 2% Brix of your sample.
  • Measurement range: 0.000 to 2.000% in concentration (for sucrose solution).
  • Measure low-concentration food and beverages, such as coffee, tea, diet sodas and herbal extracts, as well as sanitizers, disinfectants, surfactants, anti-rust agents, metal-working fluids and other industrial solutions at ±0.005% Brix accuracy.
  • Note that the range of measurement gets narrower at concentrations higher than 10% Brix. When a reference solution of 8.00% Brix is used, for example, the DD-7 can measure concentrations in the range of 8% to 10% Brix at resolution of 0.001% Brix and precision of measurement of ±0.005% Brix.
  • It is possible to measure samples with refractive index up to 1.50 (nD) by reference solution. (Samples must be low in viscosity).
  • LCD digital display. LED light source with a light sensor dual-type photo-diode.
  • Very simple to use - Just inject a reference solution and a sample solution to respective injection ports, and press the start switch.
  • Data can be exported to a printer or computer via RS232C.
  • Comply with HACCP, GMP and GLP system standards.
  • Ambient temperature: 10 to 30ºC.
  • Power: 100-240V. CE certified.
  • Dimensions (W x D x H): 36 x 35 x 14cm.
  • Weight: 5.8kg.
  • Warranty: 1 year.


    NOTE: High viscosity samples may not be suitable for measurement.


Manufacturer : Atago U.S.A., Inc.

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