Rudolph Research

J 357 Series Digital Refractometer with Temperature Control (10-100 °C)

Rudolph refractometers provide excellent measurement of refractive indices 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)

J357 S5

  • Measurement range: 1.26 - 1.72 RI , 0-100 PRIX , 1.0000 - 1.0400 Urine SG 
  • Accuracy (accuracy): ±0.00002 RI, ±0.015 PRIX
  • Resolution(Resolution): ±0.00001 RI, ±0.001 PRIX 
  • Reproducibility(Repeatability): ±0.00001 RI, ±0.001 PRIX 
  • Measurement wavelength: 589.3 nm, Dual temperature control with cover and prism
  • Temperature control: 10⁰C - 100⁰C Temperature Validation Range: 4⁰C - 95⁰C 
  • The temperature of the sample Limit: -20⁰C with 250⁰C
  • Windows 7 operating system, touch screen (8"), USB(3 ad), one Ethernet port and RS232 port, 8 GB storage and with documents IQOQPQ 
  • Smart measure (Sample quality, sample loading and cleaning with proper feedback) and trend analysis (graphical representation, repeated long-term measurements in the measurement process monitoring)

J357 S5 (EP with Cover, Plastic top cover)

  • Measurement range: 1.26 - 1.72 RI, 0-100 PRIX, 1.0000 - 1.0400 Ukraine SG 
  • Accuracy (accuracy): ±0.00002 RI, ±0.001 PRIX
  • Resolution (Resolution): ±than 0.000001 RI, ±0.001 PRIX 
  • Reproducibility (Repeatability): ±0.00001 RI, ±0.001 PRIX 
  • Measurement wavelength: 589.3 nm, Electronic (Peltier) temperature control  through the prism
  • Temperature control: 10⁰C - 100⁰C Temperature Validation Range: 4⁰C - 95⁰C 
  • The temperature of the sample Limit: -20⁰C with 250⁰C
  • Windows 7 operating system, touch screen (8"), USB (3 ad), one Ethernet port and RS232 port, 8 GB storage and with documents IQOQPQ 
  • Smart measure (Sample quality, sample loading and cleaning with proper feedback) and trend analysis (graphical representation, repeated long-term measurements in the measurement process monitoring)

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