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Hanna Digital Refractometers

with Stainless Steel Sample Well and 1.5 Second Response Time

Hanna digital refractometers eliminate the uncertainty associated with mechanical refractometers. After a simple user calibration with distilled or deionized water samples are measured within seconds. The measurement and temperature, selectable in °C or °F, are displayed on the easy-to-read LCD. With IP65 water protection, these refractometers are durable and compact enough to be used at home, in the lab, or out in the field.

Features

Refractive Index

Refractive Index is an optical characteristic of a substance and the dissolved particles on it.

The refractive index of a substance is strongly influenced by the temperature and the wavelength of the light used to measure it. Therefore, care must be taken to control or compensate for temperature differences and wavelength. The refractive index measurements are usually reported at a reference temperature of 20°C (68°F), which is considered to be room temperature.

Refractive index is defined as the ratio of the speed of light in a vacuum to the speed of light in a substance. A result of this property is that light will "bend", or change direction, when it travels through a substance with a different refractive index. This is called refraction.

When passing from a material with a higher to lower refractive index, there is a critical angle at which an incoming beam of light can no longer refract, but will instead be reflected off the interface between the two substances. This is calledtotal internal reflection.

The critical angle can be used to easily calculate the refractive index according to the equation:

sin (Θcritical) = n2 / n1

Where n2 is the refractive index of the lower-density medium, n1 is t he refractive index of the higher-density medium.

A digital refractometer passes an LED light through a prism in contact with the sample. AN image sensor determines the critical angle at which the light is no longer refracted through the sample. Specialized algorithms then apply temperature compensation to the measurement and convert the refractive index to the specified parameter.

Digital Refractometers for Sugar Analysis Throughout the Food Industry

Hanna offers five sugar refractometers to meet the requirements of the food industry. The HI96800 Refractive Index/Brix, HI96801 % Brix (sucrose), HI96802 Fructose, HI96803 Glucose and HI96804 Invert Sugar digital refractometers are rugged, portable and water-resistant for measurements in the lab or field.

Model #	Range
HI96800	1.3300 to 1.5080 nD 1.3330 to 1.5040 nD₂₀ 0.0 to 85.0% Brix
HI96801	0 to 85.0% Brix
HI96802	0 to 85% mass (% w/w fructose)
HI96803	0 to 85% mass (% w/w glucose)
HI96804	0 to 85% mass (% w/w invert sugar)

Digital Refractometers for Measurement of Sugar in Wine

Hanna offers five wine refractometers to meet the various requirements throughout the wine industry. The HI96811, HI96812, HI96813, HI96814 and HI96816 Digital Wine Refractometers are rugged, lightweight and waterproof for measurements in the lab or field.

Model #	Range
HI96811	0 to 50.0% Brix
HI96812	0 to 85.0% Brix
HI96813	0 to 50% Brix 0 to 25% V/V Potential Alcoho
HI96814	0 to 50% Brix 0 to 230°Oechsle 0 to 42°KMW
HI96816	4.9 to 56.8% V/V potential alcohol (10 to 75% Brix)*

Digital Refractometer for Measurement of Wort Sugar Analysis

The HI96841 Digital Refractometer measures the refractive index of wort and converts it to °Plato with temperature compensation (The °Plato scale is a way to quantify the concentration of sugars and dissolved solids in wort. ). The HI96841’s IP65 water-resistant casing and sealed sample well are built to perform under harsh conditions, making it suitable for use in any brewery.

Model #	Range
HI96841	0 to 30 °Plato

Digital Refractometer for Sodium Chloride Measurement Throughout the Food Industry

Hanna offers the HI96821 digital sodium chloride refractometer to meet the requirements of the food industry. This optical instrument employs the measurement of the refractive index to determine sodium chloride concentration in aqueous solutions used in food preparation. It is not intended for seawater salinity measurements.

Model #	Range
HI96821	0 to 28 g/100 g 0 to 34 g/100 mL 1.000 to 1.216 Specific Gravity (S.G.) 0 to 26 °Baumé

Digital Refractometer for Natural or Artificial Seawater Analysis

Hanna‘s HI96822 Digital Refractometer is a rugged, portable, water resistant device that uses the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates.

Salinity is a critical measurement in many applications, such as aquaculture, environmental monitoring, aquariums, desalination plants, well water, and many more.

Model #	Range
HI96822	0 to 50 PSU 0 to 150 ppt 1.000 to 1.114 Specific Gravity (S.G.)

Digital Refractometers for Ethylene and Propylene Glycol Analysis

The HI96831 for Ethylene Glycol and HI96832 for Propylene Glycol Digital Refractometers are rugged, portable, water-resistant devices that use the measurement of the refractive index to determine the percent volume and freezing point of ethylene and propylene glycol based solutions respectively.

These digital refractometers eliminate the uncertainty associated with mechanical refractometers.

Model #	Range
HI96831	0 to 100% % Volume (% v/v) 0 to -50°C (32 to -58°F) Freezing Point (FP)
HI96832	0 to 100% % Volume (% v/v) 0 to -51°C (32 to -59.8°F) Freezing Point (FP)

Hanna Digital Refractometers

with Stainless Steel Sample Well and 1.5 Second Response Time

Features

Easy Measurement and Fast Response Time

Automatic Temperature Compensation (ATC)

Stainless Steel Sample Well and IP65 Water Protection

Unit Selection

Single-point Calibration

Small Sample Size

Startup

Battery Error Prevention System (BEPS)

Refractive Index

Hanna Digital Refractometers

Digital Refractometers for Sugar Analysis Throughout the Food Industry

Digital Refractometers for Measurement of Sugar in Wine

Digital Refractometer for Measurement of Wort Sugar Analysis

Digital Refractometer for Sodium Chloride Measurement Throughout the Food Industry

Digital Refractometer for Natural or Artificial Seawater Analysis

Digital Refractometers for Ethylene and Propylene Glycol Analysis

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