อุปกรณ์วัด Refractometer (Digital Refractometer for Measurement of Sugar in Wine % of Brix)

HI 96811

Digital Refractometer for Measurement of Sugar in Wine % of Brix

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.

HI 96811 converts the refractive index of the sample to sucrose concentration in units of percent by weight, %Brix (also referred to as °Brix). The conversion used is based on the ICUMSA Methods Book (International Commission for Uniform Methods of Sugar Analysis). Since the majority of sugar in grape juice is fructose and glucose and not sucrose, the reading is sometimes referred to as “Apparent Brix”.

Specifications

Range Sugar Content 0 to 50 % Brix
Temperature 0 to 80°C (32 to 176°F)
Resolution Sugar Content 0.1 % Brix
Temperature ±0.1°C (0.1°F)
Accuracy (@20°C) Sugar Content ±0.2 % Brix
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 µL (to cover prism totally)
Light Source  yellow LED
Sample Cell  stainless steel ring and flint glass prism
Auto-off  after three 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.)