LR03 – Grapes Analyzer

Bx of the incoming grapes
grape and wine analyzer


The LR03 refractometer measures the sugar content in a sample of grape must at the time of delivery to the wine processing plant. The washing, rinsing with must and measurement operations have to be realized manually with guidance from the touch screen operator panel. The instrument displays the results in the selected scale and, thanks to a serial output, allows the user to print them or to repeat the measurement or connect up to the processing plant’s management software. The refractometric measurement of the must is direct, extremely repeatable and is not affected by color. Thanks to the vertical prism and prism cleaner, the presence of suspended solids and emulsions in the must do not have any influence on the results. The analysis of approximately 200 ml of must makes the measurement representative of the grape sample taken. The compact size of the instrument means it can easily be transported and positioned to meet all the needs of the winery.


    Application: This equipment has been designed to measure the sugar content of grape must on delivery to the winery.
    Measurement scales/limits: 0…30° % mass (Brix) alternative 0…18.3° % vol. conventionally calculated based on 16.83 g/l per 1 % in alcohol volume
    Accuracy: 0.1° % mass or ±0.1% vol. ; the maximum tolerated error is applied to indications which are not rounded up
    Measurement scales/limits: 1.3403…1.3902 nD
    Automatic conversion of the indication into the measurement scales listed below, with limits corresponding to:
    35 degrees Brix 30.2 degrees Babo
    22 degrees ALCOHOL / % vol. on base of 17 and/or 17.5 g/l per 1 % volume of alcohol
    153 degrees Oechsle 32 kg/q
    Notes: The comparison in the various measurement scales refers to the nD/Bx ICUMSA conversion tables (1974)
    Accuracy: 0.3% of the range.
    Maximum accuracy >±0.1% mass or equivalent for corresponding scales.
    Product temperature: 5… 40°C (41 … 104°F) with automatic compensation of the temperature measured by the internal PT1000 Temperature Probe in AISI 316 stainless steel
    Quantity of sample analyzed: ~400 cc/measurement cycle
    Positioning: The instrument must be protected from direct sunlight


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