Refractometer For Sugar, %brix And %v V – HI96813

• The dual-level LCD displays measurement and temperature readings simultaneously
• Automatic Temperature Compensation for accurate measurements
• Easy measurement; place a few drops of the sample in the well and press the READ key
• BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings.
• IP65 water protection; built to perform under harsh laboratory and field conditions.
• Quick, accurate results, readings are displayed in approximately 1.5 seconds.
• Single point calibration with distilled or deionized water
• Small sample size, can be as small as 2 metric drops.
• Automatic shut-off after three minutes of non-use
• Stainless steel sample well, easy to clean and corrosion resistant
• ABS thermoplastic casing

The HI 96811 Digital Wine Refractometer is rugged, lightweight and waterproof for measurements in the lab or field.

This optical instrument employs the measurement of the refractive index to determine parameters pertinent to the wine industry.

The actual measurement of the refractive index is simple and quick and provides the vintner a standard accepted method for sugar content analysis. Samples are measured after a simple user calibration with deionized or distilled water. Within seconds, the instrument measures the refractive index of the grape must. These digital refractometers eliminate the uncertainty associated with mechanical refractometers and are ideal for fast, reliable measurements in the field.

The HI 96813 allows the user to tailor the instrument to their specific needs based on their experience, since no fixed conversion factor is universally applicable. The first conversion is based on the %Brix value and an adjustable conversion factor between 0.50 and 0.70 (0.55 is a common value).

Potential alcohol (% v/v) = (0.50 to 0.70) x % Brix

One drawback of the above equation is that it does not take into account the nonfermentable sugars and extract.

A second equation was also added that takes these factors into account and can give a more accurate estimate of the alcohol content in the finished wine. This conversion is named “C1” on the meter, and uses the following equation:

Potential Alcohol (%v/v) = 0.059 x [(2.66 x Oe) – 30] (C1)

Range
Sugar Content: 0 to 50 % Brix
0.0-25.0 % V/V
Potential Alcohol
Temperature: 0 to 80 C (32 to 176 F)
Resolution
Sugar Content: 0.1 % Brix
0.1 % V/V
Potential Alcohol
Temperature: 0.1 C (0.1 F)
Accuracy (20 C)
Sugar Content 0.1 Baume
0.2 V/V
Potential Alcohol
Temperature: 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 uL (to cover prism totally)
Light Source: yellow LED
Sample Cell: stainless steel ring and flint glass prism
Auto-off: after 3 minutes of non-use
Enclosure Rating: IP65
Battery Type / Battery Life: 9V / approximately 5000 readings
Dimensions / Weight: 192 x 104 x 69 mm (7.6 x 4.1 x 2.7″) / 420 g (14.8 oz.)