Scientific Equipment Source
4-555 Wentworth Street East
Oshawa, ON, L1H 3V8
Tel: 905-231-0930
Fax: 905-231-0944


Shmidt-Haensch DUR-SW, High accurate digital refractometer

High accurate digital refractometer Equipped with an extensive software, the DUR are designed to measure refractive index of liquid media independent from opacity, viscosity and colour. Convincing design of measuring device out of stainless steel allows horizontal and vertical application of sample room with thermostatable sapphire prism. Different sample room doors with and without water circulation facility for manual or full-automatic sample changing complete the versatility. Extensive and modular software enables versatile measurements in quick and simple way. Freely configurable LCD display of 8 lines each 30 character. The DUR models feature high accuracy measurements with sample identification, real time clock, up to 30 free programmable user specific scales and self-check of error detection. Data transfer to printer or PC runs via RS 232 C interface, additional interfaces are optionally available. For use together with a polarimeter, i.e. for purity calculations in sugar industry, the measuring device of all DUR models can be directly coupled to our POLARTRONIC M, H, and SACCHAROMAT models, reducing thus the investment costs considerably.


  • Chemical industry: Solvents, organic polymers, destilled products, solutions of anorganic compounds.
  • Food industry: Yoghurt, jam, fruit extract, syrup, honey,coffee extract, vegetable fat, albumen, chocolate, milk
  • Beverage: Soft drinks, fruit juice, wine, beer.
  • Medical applications: Serum, blood, urine.
  • Pharmaceutical / cosmetical industry: Essences,essential oils, aromas.
  • Petrochemics: Oils, fats, waxes, naphtalenes, raw oils,varnishes, paints.

ApplicationsTechnical data

  • Measuring DUR-SW: nD 1.33000 - 1.53200, range Brix 0 - 95 %, DUR-W2: nD 1.33000 - 1.70000,Brix 0 - 95 %
  • Resolution DUR-SW: nD 0.00001,Brix 0.01 %, DUR-W2: nD 0.00002, Brix 0.02 %
  • Precision DUR-SW: nD 0.00002, Brix 0.02 %, DUR-W2: nD 0.00002, Brix 0.02 %
  • Working temperature: +10C up to + 40C
  • Display: LCD, 8 lines, each 30 characters
  • Prism: Sapphire, thermostatable
  • Light source: Tungsten lamp and 589nm filter
  • Data output: RS 232 C interface
  • Weight: 12 kg (complete unit)

If you are a bargain hunter please give us a call, we always have instruments in stock, which have not been refurbished and can be sold as is in working condition.

Scientific Equipment Source provides service and training on site in most of central Ontario this includes neighboring cities Ajax, Whitby, Pickering, Oshawa, Toronto, Mississauga. We can also provide training and courses on site on chromatograph (GC), HPLC in the Durham region; this includes Pickering, Ajax, Whitby, Oshawa. For other customers we can be also flexible on arrangements. For the rest of customer any equipment for repair has to be sent back by a courier.