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    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 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 refractometer

    Hand refractometers

    Hand refractometers 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

    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.

    26 Produkter som visas för Refractometers

    Varje
    2 644,74 kr
    RS PRO
    Sugar
    53%
    0%
    ±0.2 %
    0.1 %
    3s
    Digital
    4 x AAA Battery
    -
    Battery
    148 x 78 x 50 mm
    250g
    50mm
    148mm
    Varje
    2 358,77 kr
    RS PRO
    Mix Cutting Fluids
    18%
    0%
    ±0.1 %
    0.1 %Brix
    -
    -
    -
    -
    -
    96 x 60 x 230mm
    525g
    60mm
    230mm
    • RS-artikelnummer 899-8034
    • Tillv. art.nr ORA 4RR
    Varje
    1 112,31 kr
    Kern
    Expert applications
    -
    -
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 899-8015
    • Tillv. art.nr ORA 1UA
    Varje
    1 112,31 kr
    Kern
    Industry / Automotive
    40%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 188-3910
    • Tillv. art.nr 780B
    Varje
    2 291,16 kr
    Facom
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    700 x 235 x 70mm
    472g
    70mm
    700mm
    • RS-artikelnummer 899-8037
    • Tillv. art.nr ORA 4UA
    Varje
    1 112,31 kr
    Kern
    Industry / Automotive
    35%
    30%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 344-5535
    • Tillv. art.nr 300006
    Varje
    3 690,14 kr
    Instruments Direct
    Salt
    28%
    0%
    ±0.2 %
    0.2 %
    -
    Optical
    -
    -
    -
    1-1/2 (Dia.) x 6-3/4mm
    184.3g
    -
    6-3/4in
    • RS-artikelnummer 899-8031
    • Tillv. art.nr ORA 80BB
    Varje
    1 053,71 kr
    Kern
    Sugar
    80%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 275-3852
    • Tillv. art.nr ORA 32BB
    Varje
    1 018,08 kr
    Kern
    Sugar
    32%Brix
    0%Brix
    -
    0.2 %Brix
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    Varje
    1 572,37 kr
    Extech
    Mix Cutting Fluids
    18%Brix
    0%Brix
    ±0.2 %
    0.2
    -
    Brix Refractometer
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 899-8028
    • Tillv. art.nr ORA 32BA
    Varje
    1 112,31 kr
    Kern
    Sugar
    32%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 241-6482
    • Tillv. art.nr ORL 94BS
    Varje
    10 771,29 kr
    Kern
    Sugar
    212.7%
    0%
    0.1 %
    0.1 %, 0.0001 %
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 899-8025
    • Tillv. art.nr ORA 4FA
    Varje
    1 112,31 kr
    Kern
    Industry / Automotive
    -
    -
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 899-8019
    • Tillv. art.nr ORA 20BA
    Varje
    1 112,31 kr
    Kern
    Sugar
    20%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 236-0555
    • Tillv. art.nr 780BPF
    Varje
    1 523,56 kr
    Facom
    Industry / Automotive
    -
    -
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    • RS-artikelnummer 899-8021
    • Tillv. art.nr ORA 3SA
    Varje
    1 112,31 kr
    Kern
    Salt
    28%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
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    -
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    • RS-artikelnummer 275-3851
    • Tillv. art.nr ORA 10BA
    Varje
    1 074,64 kr
    Kern
    Sugar
    10%Brix
    0%Brix
    -
    0.1 %Brix
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 100-042
    • Tillv. art.nr RF41
    Varje
    1 133,41 kr
    Extech
    Sucrose
    -
    -
    ±2 %
    1 °C
    -
    Portable Refractometer
    -
    -
    -
    -
    -
    -
    -
    • RS-artikelnummer 899-8012
    • Tillv. art.nr ORA 1SA
    Varje
    1 112,31 kr
    Kern
    Salt
    100%
    0%
    -
    -
    -
    Analogue
    -
    -
    -
    -
    -
    -
    -
    Varje
    4 331,93 kr
    Kern
    -
    150 (Oechsle) °Oe, 22 (Vol. AP) %, 25 (KMW) °KMW, 35 (Mass SW) %
    0 (KMW) °KMW, 0 (Mass SW) %, 0 (Oechsle) °Oe, 0 (Vol. AP) %
    ± 0.2 (KMW) °KMW, ±0.2 (Mass SW) %, ±0.2 (Vol. AP) %, ±1 (Oechsle) °Oe
    -
    -
    Digital
    AAA
    -
    Battery
    133 x 65 x 38mm
    200g
    38mm
    133mm
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