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HI96816 Digital Refractometer for Potential Alcohol (% V/V) Analysis in Wine, Must and Juice According to EEC
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RM 1,315.00
Learn About the Hanna Instruments Wine Refractometer for Potential Alcohol (EEC) HI96816
- Sample size as small as 2 metric drops (100 μl)
- Sealed stainless steel well with high-grade optical prism made of flint glass
- Fast 1.5 second response time for temperature compensated readings
Details
Potential alcohol %V/V = g/L of Sugar / 16.83
- Designed for determining potential alcohol in wine juice and must
- Automatic Temperature Compensation
- 4.9 to 56.8 %V/V range with a ±0.2 % V/V accuracy
The accuracy of the HI96816 can be confirmed by preparing a standard % Brix solution. After calibration, a 25% Brix solution is placed in the well and the READ key is continually pressed until the % Brix value is displayed on the primary LCD. The HI96816 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with the ICUMSA Methods Book Standard for a percent by weight sucrose.
Making a Standard % Sucrose Solution
To make a Sucrose Solution, follow the procedure below:
- Place container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.
- Tare the balance.
- Weigh out X grams of high purity sucrose (CAS #: 57-50-1) directly into a beaker.
- Add distilled or deionized water to the beaker so the total weight of the solution is 100g.
- Note: Solutions above 65% may need to be vigorously stirred or shaken and heated in a water bath to roughly 40°C (104°F). Remove solution when sucrose has dissolved and allow to cool before use.
Sucrose (g) | Water (g) | Total (g) | 25.000 | 75.000 | 100.000 |
Refractive Index
The HI96816 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 HI96816 uses an LED light, prism and lens to make measurement possible.
Variations in temperature will affect the accuracy of refractometry readings, so the use of temperature compensation is highly recommended for reliable results. The HI96816 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with European Economic Community Commission Regulation No 2676/90 of 17 September 1990, Determining Community Methods for the Analysis of Wine and International Organization of Vine and Wine (OIV).
Features at-a-glance:
- Calibrate with distilled or deionized water
- Sample size can be as small as 2 metric drops (100 μl)
- Samples automatically compensated for temperature variations
- Readings are displayed in approximately 1.5 seconds
- The dual-level LCD displays measurement and temperature readings simultaneously
- Easy to clean and corrosion-resistant
- Battery percent level remaining at startup and low battery indicator
- To conserve battery life the meter shuts off automatically after three minutes of non-use
- Water resistant ABS plastic casing designed to perform under laboratory and field conditions.
Specifications
Potential Alcohol Range | 4.9 to 56.8 % V/V Potential Alcohol; 10 to 75% Brix* |
---|---|
Potential Alcohol Resolution | 0.1 % V/V Potential Alcohol |
Potential Alcohol Accuracy | ±0.2 % V/V Potential Alcohol |
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 | HI96816 is supplied with battery and instruction manual |
Notes | * The HI96816 allows the accuracy to be checked by continuously pressing the read button until the % Brix value is displayed. A % Brix solution made from sucrose must be used. |