Description

The IRF-454B2M refractometer is the most convenient and practice-tested device for determining the refractive indices of non-aggressive transparent liquids and solutions.

Almost all laboratory methods requiring the use of refractometers are guided by the IRF 454 B2M refractometer. Its measuring range, covering the entire scale from 0 to 100%, has made it versatile.

 

 

Choosing our IRF 454B2M refractometer, you will solve the following problems:

 

1. There will be no need for several refractometers with a narrower range;

 

2. Quality assurance is confirmed by almost a century of experience of the manufacturing plant – “Kazan Optical and Mechanical Plant”

 

3. One of the most acute problems – the availability of measurement methods – was solved in favor of the IRF-454B2M refractometer, since almost all existing domestic methods and manuals are based on the use of this refractometer. According to the measured value of the refractive indices, using conversion tables, it is possible to determine the protein content in milk, in blood serum, extract in beer, ethyl alcohol in grape wine, urine density, concentration of solutions of oils and fats in organic solvents.

 

Refractometers can be used in laboratories:

 

food industry to measure the content of sugar and solids by sucrose in drinks, fruits, berries, honey, the content of alcohol and extract in wines, vodka, beer, liqueurs, condensed milk, to determine the dry skimmed milk residue, protein in milk and dairy products, for quality control of vegetable oil, etc.;

 

medical institutions for determining protein in blood serum, cerebrospinal fluid, drug concentration control, urine density measurement, etc.;

 

chemical industry to control the concentration of various chemical and petrochemical products;

 

customs and other regulatory organizations for the duty-technical classification of beer, alcoholic and non-alcoholic beverages, liquid fuels, oils, chemicals and other products; scientific institutions.

 

Specifications:

 

  • Operating Wavelength …………………………………………………….. …….. 584 nm
  • Measurement range:
  • refractive index (nD) ………………………………….. from 1.2 up to 1.7
  • mass fraction of solids (sucrose) in solution, …….. from 0 to 100%
  • Limit of permissible basic error:
  • by refractive index (nD) ……………………………………… ±10 -4
  • by average variance, ……………………………………….. …… ±0.15%
  • Accuracy of measurement of sugar content in solutions ………….. 0.2%
  • Diopter adjustment of the eyepiece ……………………………………….. ±5 diopters
  • Operating temperature range ……………………………………….. +10 . .. +40, °С
  • Refractive index scale division (nD) ………….. 5×10-4
  • Power supply (220±22) V, …………………………………… … 50 or 60 Hz
  • Overall dimensions (l/w/h) …………………………………… ….. 170x115x270 mm
  • Weight no more ………………………………………. …………….. 3.5 kg
  • Overall dimensions with packaging ………………………………… 200x300x400 mm
  • Gross weight (with packaging) ……………………………………….. …… 4.5 kg

 

Contents of delivery:

  • Refractometer IRF-454 B2M – 1 pc.,
  • thermometer – 1 pc.
  • A set of tools and accessories: illuminator – 1 pc.,
  • jar with ground stopper – 3 pcs.,
  • control plate – 1 pc.,
  • key – 1 pc.,
  • power supply – 1 pc.,
  • stick – 1 pc.,
  • bleached flannel – 1 pc.,
  • bleached cambric – 1 pc.,
  • medical rubber tube – 3 pcs.,
  • technical silica gel – 0.75 kg., packing.
  • Operational documentation: operation manual – 1 pc., verification procedure – 1 pc.

 

Transport dimensions:

 

  • Dimensions in the package 0.50×0.30×0.25
  • Weight, kg 5
  • Volume, m.cub. 0.0375
  • Country Russia