Refractometers

Refractometers measure the concentration levels of aqueous solutions by analysing the angle of light refraction in a few drops of liquid and plotting it on a refractive index. By calculating this index – the speed at which light passes through a substance - you can analyse a sample’s purity and establish the concentration of dissolved materials.

How do refractometers work?

Standard refractometers measure the degree to which light changes direction in transparent substances, which is called the angle of refraction. As light passes through a liquid it creates a bending illusion, and the degree to which it bends depends on the amount of dissolved substance present. A refractometer takes the refraction angles and correlates them to refractive index (nD) values. Typically reported to a ten-thousandths place, you can use these values to determine the concentrations of solutions.

Some refractometers use the Brix scale. A Brix refractometer relates the concentration of sucrose in water to the solution’s refractive index.

What are the different types of refractometer?

Hand refractometers allow quick and easy measurement in liquid and semi-solid samples. They work on the critical angle principle in which lenses and prisms project a shadow line onto a small glass reticule inside the instrument, which is viewed through a magnifying eyepiece.

The digital handheld refractometer operates on the same principle but with light from an LED focused on the underside or a prism element. When a 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, the internal software correlates the position to the refractive index to display a reading.

Where are refractometers used?

Refractometers are relied upon for quality control in the food and drink industries. They’re also used by jewellers to analyse the purity of gemstones and can even be used for home-brewing, monitoring the salinity or specific gravity of water in fish tanks, and making preserves.


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제품설명 단가 Refractometer Type Maximum Measurement Minimum Measurement Best Accuracy Resolution Measurement Time Type Battery Type Battery Life Power Source Dimensions Weight Height Length
RS 제품 번호 877-1781
제조사RS PRO
₩175,723.50
Each
수량
Mix Cutting Fluids 18% 0% ±0.1 % 0.1 %Brix - - - - - 96 x 60 x 230mm 525g 60mm 230mm
RS 제품 번호 667-2159
제조사 부품 번호HI 96801
₩442,162.30
Each
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Sucrose +80 °C, 85 %Brix 0 %Brix, 0 °C ±0.2 %Brix 0.1 %Brix, 0.1 °C 1.5s Digital/Optical 9V 5000 Tests Battery 192 x 104 x 69mm 420g 69mm 192mm
RS 제품 번호 344-5484
제조사 부품 번호300001
₩430,473.75
Each
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Sugar 32% 0% ±0.2 % 0.2 % - Optical - - - 1-1/2 (Dia.) x 6-3/4mm 170.1g - 6-3/4in
RS 제품 번호 685-768
제조사 부품 번호52060
제조사Rocol
₩282,355.75
Each
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Grinding Fluids, Mix Cutting Fluids - - - - - - - - - - - - -
RS 제품 번호 899-8012
제조사 부품 번호ORA 1SA
제조사Kern
₩178,507.30
Each
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Salt 100% 0% - - - Analogue - - - - - - -
RS 제품 번호 344-5507
제조사 부품 번호300003
₩484,049.50
Each
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Sugar 80% 0% ±1 % 1 % - Optical - - - 1-1/2 (Dia.) x 7mm 538.6g - 7in
RS 제품 번호 181-1149
제조사 부품 번호ORF 1RS
제조사Kern
₩618,818.90
Each
수량
Salt - - ±0.0005 (Refractive Index) nD - - Digital AAA - Battery 133 x 65 x 38mm 200g 38mm 133mm
RS 제품 번호 136-3530
제조사 부품 번호ORA 6HA
제조사Kern
₩161,903.70
Each
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- 30% 12% - 0.1 % - Digital/Optical Rechargeable Battery - Battery 130 (Dia.) x 200mm 140g - 200mm
RS 제품 번호 181-1152
제조사 부품 번호ORF 3SM
제조사Kern
₩489,299.35
Each
수량
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 제품 번호 181-1153
제조사 부품 번호ORF 45BM
제조사Kern
₩489,299.35
Each
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Sugar 1.4098 (Refractive Index) nD, 45 (Brix) % 0 (Brix) %, 1.3330 (Refractive Index) nD ±0.0003 (Refractive Index) nD, ±0.2 (Brix) % - - Digital AAA - Battery 133 x 65 x 38mm 200g 38mm 133mm
RS 제품 번호 899-8031
제조사 부품 번호ORA 80BB
제조사Kern
₩161,717.70
Each
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Sugar 80% 0% - - - Analogue - - - - - - -
RS 제품 번호 899-8037
제조사 부품 번호ORA 4UA
제조사Kern
₩186,392.15
Each
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Industry / Automotive 35% 30% - - - Analogue - - - - - - -
RS 제품 번호 899-8019
제조사 부품 번호ORA 20BA
제조사Kern
₩186,392.15
Each
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Sugar 20% 0% - - - Analogue - - - - - - -
RS 제품 번호 181-1155
제조사 부품 번호ORF 85BM
제조사Kern
₩568,450.10
Each
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Sugar 1.5100 (Refractive Index) nD, 85 (Brix) % 0 (Brix) %, 1.3330 (Refractive Index) nD ±0.0003 (Refractive Index) nD, ±0.2 (Brix) % - - Digital AAA - Battery 133 x 65 x 38mm 200g 38mm 133mm
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RS 제품 번호 188-3910
제조사 부품 번호780B
제조사Facom
₩211,319.25
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- - - - - - - - - - 700 x 235 x 70mm 472g 70mm 700mm
RS 제품 번호 899-8034
제조사 부품 번호ORA 4RR
제조사Kern
₩186,392.15
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Expert applications - - - - - Analogue - - - - - - -
RS 제품 번호 136-3534
제조사 부품 번호ORT 1RS
제조사Kern
₩1,125,222.50
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- 1.7 nD, 95 % 0 %, 1.3 nD ±0.0002 nD, ±0.1 % ±0.0005 nD, ±0.25 % - Digital/Optical - - - 180 x 90 x 240mm 2kg 240mm 180mm
RS 제품 번호 181-1154
제조사 부품 번호ORF 5UM
제조사Kern
₩489,299.35
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- 0 (CW) °C, 0 (EG) °C, 0 (PG) °C, 40 (Urea) % -50 (EG) °C, -50 (PG) °C, -40 (CW) °C, 0 (Urea) % ±0.2 (Urea) %, ±0.5 (CW) °C, ±0.5 (EG) °C, ±0.5 (PG) °C - - Digital AAA - Battery 133 x 65 x 38mm 200g 38mm 133mm
RS 제품 번호 899-8028
제조사 부품 번호ORA 32BA
제조사Kern
₩186,392.15
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Sugar 32% 0% - - - Analogue - - - - - - -
RS 제품 번호 181-1151
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