Digital Refractometer

The HI 96811 is an optical instrument that employs the measurement of refractive index to display the sugar content in grape samples. The measurement of refractive index is simple and quick. Samples are measured after a simple user calibration with deionized or distilled water. Within seconds the instrument measures the refractive index of the grape sample and converts it to % Brix concentration units. The HI 96811 digital refractometer eliminates the uncertainty associated with mechanical refractometers and is portable for measurements in the field. The measurement technique and temperature compensation employ the methodology found in the ICUMSA Methods Book (International Commission for Uniform Methods of Sugar Analysis). Temperature (in A C or A F) is displayed simultaneously with measurement on the large dual level display along with other helpful message codes. Features: a c 1.5 second measurement time a c Automatic Temperature Compensation (ATC) a c Easy setup and storage a c Battery operated a c Automatic shut-off Specification: Range 0 to 50% Brix / 0 to 80A C (32 to 176A F) Resolution A 0.1% Brix / A 0.1A C (A 0.1A F) Accuracy A 0.2 % Brix / A 0.3A C (A 0.5A F) Automatic Temperature Compensation between 10 and 40A C (50 - 104A C) Measurement Time Approximately 1.5 seconds Minimum Sample Volume 2 metric drops Light Source Yellow LED Sample Cell Stainless steel ring and flint glass prism Case Material ABS Enclosure Rating IP65 Battery Type / Life (1) 9V / 5000 readings Auto-Off After 3 min