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THANK YOU for choosing Milwaukee Instruments! This instruction manual will provide you the necessary information for correct use of the meters. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Milwaukee Instruments Inc., Rocky Mount, NC 27804 USA.
TABLE OF CONTENTS 1. FUNCTIONAL DESCRIPTION .................5 2. GENERAL DESCRIPTION ..................7 3. SPECIFICATIONS ......................8 4. PRINCIPLE OF OPERATION ...................9 5. MEASUREMENT GUIDELINES ................11 6. CALIBRATION PROCEDURE .................12 7. MEASUREMENT PROCEDURE................14 8. CHANGING MEASUREMENT UNIT ..............16 9. CHANGING TEMPERATURE UNIT ..............17 10.
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4 MA886 Digital Sodium Chloride Refractometer Remove the instrument from the packing materials and examine carefully to ensure no damage has occurred during shipping. If any damage has occurred, notify your Dealer. Each instrument is supplied with: y 9 V battery...
FUNCTIONAL DESCRIPTION 5 1. FUNCTIONAL DESCRIPTION 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 E. AUTOMATIC TEMPERATURE COMPENSATION (BLINKS WHEN TEMPERATURE EXCEEDS 10-40 °C / 50-104 °F RANGE) F.
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6 MA886 Digital Sodium Chloride Refractometer FRONT PANEL MA886 Digital Sodium Chloride Refractometer 1 g/100 g 2 g/100 mL 3 S.G. (20/20) 4 Baumé A. LIQUID CRYSTAL DISPLAY (LCD) B. READ KEY (USER MEASUREMENT) C. ZERO KEY (USER CALIBRATION) D. RANGE KEY (USER MEASUREMENT UNIT) E.
Thank you for choosing Milwaukee. This instruction manual will provide you the necessary information for correct use of the meter. The MA886 is an optical instrument that employs the measurement of the refractive index to determine sodium chloride concentration in aqueous solutions used in food preparation. It is not intended for sea water salinity measurements.
8 MA886 Digital Sodium Chloride Refractometer 3. SPECIFICATIONS Specific g/100 g g/100 mL °Baumé °C (°F) Gravity 0 to 80 °C 0 to 28 0 to 34 1.000 to 1.216 0 to 26 Range: (32 to 176 °F) 0.1 °C 0.001...
θ = angle of refraction In the MA886 refractometer, 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...
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10 MA886 Digital Sodium Chloride Refractometer Sample Well Sample Prism Lens Shadow Linear Image Sensor Specialized algorithms then apply temperature compensation to the measurement and convert this refractive index to: g/100 g (% by mass), g/100 mL, Specific Gravity (S.G. 20/20), or Baumé.
MEASUREMENT GUIDELINES 11 5. MEASUREMENT GUIDELINES y Handle instrument carefully. Do not drop. y Do not immerse instrument under water. y Do not spray water to any part of instrument except the “sample well” located over the prism. y The instrument is intended to measure sodium chloride solutions.
12 MA886 Digital Sodium Chloride Refractometer 6. 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.
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CALIBRATION PROCEDURE 13 3. Press the ZERO key. If no error messages appear, your unit is calibrated. (For a description of error messages see ERROR MESSAGES section). Note: The 0.0 screen will remain until a sample is measured or the power is turned off. 4.
14 MA886 Digital Sodium Chloride Refractometer 7. MEASUREMENT PROCEDURE Verify the instrument has been calibrated before taking measurements. 1. Wipe off prism surface located at the bottom of the sample well. Make sure the prism and sample well are completely dry.
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MEASUREMENT PROCEDURE 15 Note: The “ATC” tag blinks and automatic temperature compensation is disabled if the temperature exceeds the 10‑40 °C / 50‑104 °F range. Note: Temperature is not displayed in Baumé mode. 4. Remove sample from the sample well by absorbing on a soft tissue.
16 MA886 Digital Sodium Chloride Refractometer 8. CHANGING MEASUREMENT UNIT Press the RANGE key to select measurement units. The instrument toggles between the four measurement scales each time the key is pressed and the primary display indicates “G-G” for g/100 g, “G-L”...
CHANGING TEMPERATURE UNIT 17 9. 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.
18 MA886 Digital Sodium Chloride Refractometer 10. MAKING A STANDARD SODIUM CHLORIDE SOLUTION To make a Standard NaCl Solution follow the procedure below: y Place container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.
ERROR MESSAGES 19 11. ERROR MESSAGES Error Code Description General failure. Cycle power to instrument. If instrument still has error, contact Milwaukee. Sample is reading lower LO Primary display than the 0 % standard used for meter calibration. Sample exceeds maximum HI Primary display measurement range.
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20 MA886 Digital Sodium Chloride Refractometer Battery segment <5% of battery life is blinking remaining. Temperature values Temperature measurement are blinking 0.0°C out of sampling range or 80.0°C (0.0 to 80.0°C). Outside temperature ATC segment compensation range blinking (10 to 40°C). SETUP segment Factory calibration lost.
BATTERY REPLACEMENT 21 12. BATTERY REPLACEMENT To replace the instrument’s battery, follow these steps: y Turn the instrument OFF by pressing the ON/OFF key. y Turn instrument upside down and remove the battery cover by turning it counterclockwise. y Extract the battery from its location. y Replace with fresh 9V battery making certain to observe polarity.
22 MA886 Digital Sodium Chloride Refractometer CERTIFICATION Milwaukee Instruments conform to the CE European Directives. RoHS COMPLIANT Disposal of Electrical & Electronic Equipment. Do not treat this product as household waste. Hand it over to the appropriate collection point for the recycling of electrical and electronic equipment.
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Milwaukee Instruments reserves the right to make improvements in design, construction and appearance of its products without advance notice.
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THANK YOU FOR CHOOSING Distributor In Australia Pacific Sensor Technologies Pty Ltd. Unit 4, 3 Neutron Place, Rowville VIC 3178 www.pacificsensortech.com.au 1300 662 720 | sales@pacificsensortech.com.au Milwaukee Instruments, Inc. 2950 Business Park Drive Rocky Mount, NC 27804 USA tel: +1 (252) 443-3630 fax: +1 (252) 443-1937 www.milwaukeeinstruments.com e-mail: sales@milwaukeeinstruments.com...
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