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INSTRUCTION MANUAL
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
Milwaukee Refractometer
MA888
Refractometer for Ethylene
Refractometer for Ethylene
Refractometer for Ethylene
Refractometer for Ethylene
Refractometer for Ethylene
Glycol Measurements
Glycol Measurements
Glycol Measurements
Glycol Measurements
Glycol Measurements
www.milwaukeeinst.com
www.milwaukeeinst.com
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Summary of Contents for Milwaukee MA888
- Page 1 INSTRUCTION MANUAL Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer Milwaukee Refractometer MA888 Refractometer for Ethylene Refractometer for Ethylene Refractometer for Ethylene Refractometer for Ethylene Refractometer for Ethylene Glycol Measurements Glycol Measurements Glycol Measurements Glycol Measurements Glycol Measurements www.milwaukeeinst.com...
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Page 2: Table Of Contents
Instruction Manual MA888 Refractometer for Ethylene Glycol Measurements TABLE OF CONTENTS FUNCTIONAL DESCRIPTION ................3 GENERAL DESCRIPTION ..................5 SPECIFICATIONS ....................6 PRINCIPLE OF OPERATION ................6 MEASUREMENT UNITS ..................8 MEASUREMENT GUIDELINES ................8 CALIBRATION PROCEDURE ................9 MEASUREMENT PROCEDURE ................10 CHANGING MEASUREMENT UNIT .............. -
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 MA888 Refractometer for Ethylene Glycol 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 (USER MEASUREMENT UNIT) ON/OFF STAINLESS STEEL SAMPLE WELL AND PRISM G.
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Page 5: General Description
The MA888 refractometer is an optical device that is simple and quick to use. Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of two mea- surement units;... -
Page 6: Specifications
Instruction Manual MA888 Refractometer for Ethylene Glycol Measurements SPECIFICATIONS C ° ° ( C ° ° C ° ° C ° ° C ° ° ± ± ( ° ± ° ± C ° ± ° Light Source Yellow LED Measurement Time Approximately 1.5 seconds... - Page 7 In the MA888 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 the sample. Specialized algorithms then apply temperature compensation to the measurement and convert the refractive index to: % Volume or Freezing Point.
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Page 8: Measurement Units
Instruction Manual MA888 Refractometer for Ethylene Glycol Measurements MEASUREMENT UNITS Freezing point is displayed as a temperature from 0.0 to -50.0 °C corresponding to 0-58 % by volume. The display blinks the freezing point when the concentration of Ethylene glycol is greater than 78 % concentration by volume. -
Page 9: 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 occurred since the last calibration. 1. Press the ON/OFF key, then release. Two instrument test screens will be displayed briefly;... -
Page 10: Measurement Procedure
Instruction Manual MA888 Refractometer for Ethylene Glycol Measurements Note: The 0.0 screen will remain until a sample is measured or the instrument is turned off. 4. Gently absorb the ZERO water standard with a soft tissue. Use care not to scratch the prism surface. -
Page 11: Changing Measurement Unit
www.milwaukeeinst.com 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 0-40 °C / 32-104 °F range. 4. -
Page 12: Changing Temperature Unit
Instruction Manual MA888 Refractometer for Ethylene Glycol Measurements 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”... -
Page 13: Error Messages
www.milwaukeeinst.com ERROR MESSAGES l i t l i t ° ° < ° ° ° °... -
Page 14: Battery Replacement
Instruction Manual MA888 Refractometer for Ethylene Glycol 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 15: 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 16 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...
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