Milwaukee MA882 Instruction Manual
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Milwaukee MA882 Instruction Manual

Refractometers for wine and grape product measurements
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INSTRUCTION MANUAL
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
MA882, MA883, MA884, MA885
R R R R R efractometers for W
efractometers for W
efractometers for W
efractometers for W
efractometers for W ine and
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Grape P
roduct Measurements
roduct Measurements
Grape P roduct Measurements
roduct Measurements
Grape P
Grape P
roduct Measurements
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Summary of Contents for Milwaukee MA882

  • Page 1 INSTRUCTION MANUAL Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer MA882, MA883, MA884, MA885 R R R R R efractometers for W efractometers for W efractometers for W ine and ine and efractometers for W efractometers for W ine and...

  • Page 2: Table Of Contents

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements TABLE OF CONTENTS FUNCTIONAL DESCRIPTION ................3 GENERAL DESCRIPTION ..................5 SPECIFICATIONS ....................6 PRINCIPLE OF OPERATION ................7 MEASUREMENT UNITS ..................8 MEASUREMENT GUIDELINES ................10 CALIBRATION PROCEDURE ................

  • Page 3: Functional Description

    www.milwaukeeinst.com FUNCTIONAL DESCRIPTION DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY A. BATTERY STATUS ICON (BLINKS WHEN LOW BATTERY CONDITION DETECTED) B. MEASUREMENT IN PROGRESS TAG C. SETUP: FACTORY CALIBRATION TAG D. CAL: CALIBRATION TAG AUTOMATIC TEMPERATURE COMPENSATION (BLINKS WHEN TEMPERATURE EXCEEDS 10-40 °C / 50-104 °F RANGE) PRIMARY DISPLAY (DISPLAYS MEASUREMENT AND ERROR MESSAGES) G.
  • Page 4 Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL A. LIQUID CRYSTAL DISPLAY (LCD) B. READ KEY (USER MEASUREMENT) C. ZERO KEY (USER CALIBRATION) D. RANGE KEY (MA884 AND MA885)

  • Page 5: General Description

    Thank you for choosing Milwaukee. This instruction manual will provide you the necessary information for correct use of the meter. The MA882, MA883, MA884 and MA885 are optical instruments that are based on the measurement of the refractive index of a solution. The measurement of refractive index is simple and quick and provides the vintner an accepted method for sugar content analysis.

  • Page 6: Specifications

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements SPECIFICATIONS MA882 Range: 0 to 50 %Brix / 0 to 80°C (32 to 176°F) Resolution: 0.1 %Brix / 0.1°C (0.1°F) Accuracy: ±0.2 %Brix / ±0.3°C (±0.5°F)

  • Page 7: Principle Of Operation

    In the MA882, MA883, MA884 and MA885 refractometers, light from an LED passes through a prism in contact with the sample. An image sensor determines the critical angle at which the light is no longer refracted through the sample.

  • Page 8: Measurement Units

    MEASUREMENT UNITS MA882, MA883, MA884 and MA885 measure sugar content in several units to meet the differing requirements found in the wine industry. MA882, MA884 and MA885 convert the refractive index of the sample to sucrose concentration in units of percent by weight, %Brix (also referred to as °Brix).
  • Page 9 www.milwaukeeinst.com °Oechsle (°Oe) is mainly used in the German, Swiss and Luxenburgish winemaking industry to measure the sugar content of must. The °Oe scale is based on specific gravity at 20°C (SG20/20) and is the first 3 digits following the decimal point. 1 °Oe is roughly equal to 0.2 %Brix.

  • Page 10: Measurement Guidelines

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements MEASUREMENT GUIDELINES • Handle instrument carefully. Do not drop. • Do not immerse instrument under water. • Do not spray water to any part of instrument except the “sample well” located over the prism.

  • Page 11: Calibration Procedure

    www.milwaukeeinst.com CALIBRATION PROCEDURE Calibration should be performed daily, before measurements are made, when the battery has been replaced, between a long series of measurements, or if environmental changes have occured since the last calibration. 1. Press the ON/OFF key, then release. Two instrument test screens will be displayed briefly;...

  • Page 12: Measurement Procedure

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements 4. Gently absorb the ZERO water standard with a soft tissue. Use care not to scratch the prism surface. Dry the surface completely. The instrument is ready for sample measurement.
  • Page 13 www.milwaukeeinst.com 3. Press the READ key. The results are displayed in unit of interest. Note: The last measurement value will be displayed until the next sample is measured or the instrument is turned off. Temperature will be continuously updated. Note: The “ATC” tag blinks and automatic temperature compensation is disabled if the temperature exceeds the 10-40 °C / 50-104 °F range.

  • Page 14: Changing Measurement Unit (Ma884 & Ma885)

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements CHANGING MEASUREMENT UNIT (MA884 & MA885) For MA884 only: 1. Press the RANGE key to select measurement units of %Brix or % potential alcohol. The instrument toggles between the two measurement scales each time the key is pressed and the primary display indicates “bri”...

  • Page 15: Changing Temperature Unit

    www.milwaukeeinst.com CHANGING TEMPERATURE UNIT To change the temperature measurement unit from Celsius to Fahrenheit (or vice versa), follow this procedure. 1. Press and hold the ON/OFF key continuously for approximately 8 seconds. The LCD will display the “all segment” screen followed by a screen with the model number on the primary display and the version number on the secondary display.

  • Page 16: Making A Standard %Brix Solution

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements 2. While continuing to hold ON/OFF, press the RANGE key. The LCD will show the current conversion factor on the primary display and “P.ALc” on the secondary display.

  • Page 17: Error Messages

    www.milwaukeeinst.com ERROR MESSAGES l i t l i t ° ° < ° ° ° °...

  • Page 18: Battery Replacement

    Instruction Manual MA882, MA883, MA884 & MA885 Refractometers for Wine and Grape Product Measurements BATTERY REPLACEMENT To replace the instrument’s battery, follow these steps: • Turn the instrument OFF by pressing the ON/OFF key. • Turn instrument upside down and remove the battery cover by turning it counterclockwise.

  • Page 19: Warranty

    Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered by the warranty. Milwaukee/Martini instruments reserves the right to make improvements in design, construction and appearance of its products without advance notice.
  • Page 20 THANK YOU FOR CHOOSING Sales and Technical Service Contacts: Milwaukee Electronics Kft. Alsókikötő sor 11. 6726, Szeged, Hungary Tel: +36-62-428-050 Fax: +36-62-428-051 e-mail: sales@milwaukeeinst.com Milwaukee Instruments, Inc. 2950 Business Park Drive Rocky Mount, NC 27804 USA Tel: +1 252 443 3630 Fax: +1 252 443 1937 e-mail: sales@milwaukeetesters.com...

This manual is also suitable for:

Ma883Ma884Ma885

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