Refractometers

A refractometer is a laboratory or field instrument used for measuring concentrations of aqueous solutions. It requires only a few drops of liquid and is used as throughout the food, agricultural, chemical, and manufacturing industries.Refractometers measure the degree to which light changes direction, called the angle of refraction. A refractometer takes the refraction angles and correlates them to refractive index (nD) values that have been established. Using these values, you can determine the concentrations of solutions.Types of refractometers
  • Hand refractometer facilitate convenient and rapid measurement of concentration in a number of liquid and semi-solid samples. It works on critical angle principle in which lenses and prisms project a shadow line onto a small glass reticule inside the instrument, which is then viewed through a magnifying eyepiece.
  • Digital refractometers operate on the same critical angle principle as a handheld refractometer. The difference is that light from an LED is focused on the underside or a prism element. When a liquid sample is applied to the measuring surface of the prism, some of the light is transmitted through the solution and lost, while the remaining light is reflected onto an array of photodiodes creating a shadow line. Once the position of the shadow line has been automatically determined by the instrument, the internal software will correlate the position to refractive index and display a digital readout.

...
Lees meer Lees minder

Filters

21 - 26 van 26 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Refractometer Type Maximum Measurement Minimum Measurement Best Accuracy Resolution Measurement Time Type Battery Type Battery Life Power Source Dimensions Weight Height Length
RS-stocknr. 899-8031
FabrikantnummerORA 80BB
FabrikantKern
€ 80,00
Each
Aantal stuks
Sugar 80% 0% - - - Analogue - - - - - - -
RS-stocknr. 685-768
Fabrikantnummer52060
FabrikantRocol
€ 169,98
Each
Aantal stuks
Grinding Fluids, Mix Cutting Fluids - - - - - - - - - - - - -
RS-stocknr. 181-1152
FabrikantnummerORF 3SM
FabrikantKern
€ 340,00
Each
Aantal stuks
Salt 1.4100 (Refractive Index) nD, 28 (Salt (NaCl)) %, 45 (Brix) % 0 (Salt (NaCl)) %, 0 (Brix) %, 1.3330 (Refractive Index) nD ±0.0003 (Refractive Index) nD, ±0.2 (Brix) %, ±0.2 (Salt (NaCl)) % - - Digital AAA - Battery 133 x 65 x 38mm 200g 38mm 133mm
RS-stocknr. 899-8028
FabrikantnummerORA 32BA
FabrikantKern
€ 85,00
Each
Aantal stuks
Sugar 32% 0% - - - Analogue - - - - - - -
RS-stocknr. 899-8025
FabrikantnummerORA 4FA
FabrikantKern
€ 85,00
Each
Aantal stuks
Industry / Automotive - - - - - Analogue - - - - - - -
RS-stocknr. 899-8021
FabrikantnummerORA 3SA
FabrikantKern
€ 85,00
Each
Aantal stuks
Salt 28% 0% - - - Analogue - - - - - - -
Related Products
Area of application: Urine. The following models are ...
Description:
Area of application: Urine. The following models are particularly suitable for measuring specific urine weight (density), the serum content (serum protein in urine) and the refraction index.
Area of application: Industry/Motor vehicle industry. The following ...
Description:
Area of application: Industry/Motor vehicle industry. The following models are particularly suitable for measuring and determining AdBlue, glycol concentration (ethylene: EG and propylene: PG), of battery fluid (BF), urea and measuring the freezing point of screen wash (CW). Furthermore, these ...
Area of application: Salt. The following models are ...
Description:
Area of application: Salt. The following models are particularly suitable for measuring and dosing of sodium chloride in water (salinity) and the content of NaCl (salt) in water. This is often used in the production and cooking of sauces, brines ...
Four measurement scales: - Adblue - Coolant - ...
Description:
Four measurement scales: - Adblue - Coolant - Battery acid - WasherSuited to Euro6 Diesel engines.Measures urea concentration of Adblue used.Correct, reliable and precise information.