Rudolph Research

J 57 Series Digital Refractometer with Temperature Control at 20 and 25 °C

Rudolph refractometers provide excellent measurement of refractive index and concentrations of liquid, gel and fluid derivatives used in all sectors, particularly in the pharmaceutical, food, cosmetic and petrochemical industries. It offers the possibility of easy model selection according to sensitivity, temperature range and methods to be worked.

The Main Sectors

  • Universities (Research Laboratories)
  • Food industry (sugar industry, olive oil, honey and fruit juice producers. Purity determination of water-soluble dry matter determination)
  • Chemical industry (determination of refractive index and refractive index)
  • Pharmaceutical industry (quality control of raw materials and final products)
  • Cosmetic industry (determination of the concentration and the amount of the substance)
  • Oil industry (oil ratios , to measure concentrations)
  • Agriculture Industry (determination of the amount of solid material in liquid material)

J57HA S5

  • Measuring range: 1.32 - 1.53 RI, 0-100 PRIX
  • Accuracy(accuracy): ±0.00002 RI, ±0.01 PRIX
  • Resolution(Resolution): ±0.00001 RI, ±0.01 PRIX 
  • Reproducibility(Repeatability): ±0.00002 RI, ±0.01 PRIX 
  • Measurement wavelength: 589.3 nm
  • Temperature control: 20⁰C and 25⁰C
  • The temperature of the sample Limit: -20⁰C with 250⁰C
  • Touch Screen (4.3"), USB, and RS232 port with 4 GB data storage and calibration certificate

J57WR S5

  • Measuring range: 1.29 - 1.66 RI, PRIX 0-100
  • Accuracy (accuracy): ±0.0001, RI, ±0.1 PRIX
  • Resolution (Resolution): ±0.0001, RI, ±0.1 PRIX 
  • Reproducibility (Repeatability): ±0.0001, RI, ±0.1 PRIX 
  • Measurement wavelength: 589.3 nm
  • Temperature control: 20⁰C and 25⁰C
  • The temperature of the sample Limit: -20⁰C with 250⁰C
  • The amulet operating system, Touch-Screen (4.3"), USB, and RS232 port with 4 GB data storage and calibration certificate

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