Hanna Instruments HI96841 Digital Refractometer combines form and function into one compact unit. Featuring a 1.5 second response time, the HI96841 measures the refractive index of wort and converts it to °Plato with temperature compensation. The improved easy-to-read LCD screen displays temperature units (°C or °F) and measurements simultaneously. 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.
The °Plato scale is a way to quantify the concentration of sugars and dissolved solids in wort. This measurement can indicate the potential alcohol content of finished beer. The HI96841 converts the refractive index reading to °Plato based on the tables maintained by the International Commission for Uniform Methods of Sugar Analysis (ICUMSA) and the American Society of Brewing Chemists (ASBC).
The HI96841 takes measurements based on a sample’s refractive index. Refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample’s composition, light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample’s refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96841 uses a LED light, prism, and lens to make measurement possible.
Variations in temperature will affect the density of a solution based on the compound that is present. In digital refractometry, the use of temperature compensation is necessary for accurate results. The HI96841 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with the ICUMSA Methods Book for a percent by weight sucrose solution.
It should be noted that once fermentation begins, ethanol and the residual sugar interfere with each other and prevent an accurate reading of the Brix value of your residual sugar.. For this reason, this refractometer cannot be used with finished beer or other fermented beverages. It is designed for use with wort only.
Sugar Content Range | 0 to 30 °Plato |
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Sugar Content Resolution | 0.1 °Plato |
Sugar Content Accuracy (@25ºC/77ºF) | ±0.2 °Plato |
Temperature Range | 0 to 80°C (32 to 176°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.3 °C (±0.5 °F) |
Temperature Compensation | automatic between 10 and 40°C (50 to 104°F) |
Measurement Time | approximately 1.5 seconds |
Minimum Sample Volume | 100 μL (to cover prism totally) |
Light Source | yellow LED |
Sample Cell | stainless steel ring and flint glass prism |
Auto-off | after three minutes of inactivity |
Enclosure Rating | IP65 |
Battery Type / Life | 9V / approximately 5000 readings |
Dimensions / Weight | 192 x 102 x 67 mm (7.6 x 4.01 x 2.6”) / 420 g (14.8 oz.) |
Ordering Information | HI96841 is supplied with 9V battery and instruction manual. |
Warranty | 2 years |
We train our customers on the operation and installation .. We also offer after-sales service to follow our customers constantly and always check on our devices and the speed of providing maintenance service when necessary
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