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Summary of Contents for Hanna Instruments HI 96831
- Page 1 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Instruction Manual HI 96831 Ethylene Glycol Refractometer...
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Page 2: Table Of Contents
Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct use of this instrument. Please read it carefully before using the meter. TABLE OF CONTENTS PRELIMINARY EXAMINATION ..................... 2 GENERAL DESCRIPTION ..................... -
Page 3: General Description
The HI 96831 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 measurement units;... -
Page 4: Principle Of Operation
In the HI 96831 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. -
Page 5: Measurement Units
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. When the display shows “LO”, the freezing point is at a minimum (below -50 °C). -
Page 6: Display Elements
BOTTOM 9. Battery Cover 10.Battery Compartment DISPLAY ELEMENTS DISPLAY ELEMENTS DISPLAY ELEMENTS DISPLAY ELEMENTS DISPLAY ELEMENTS 1. Battery (blinks when low battery condition detected) 2. Measurement in Progress Tag 3. SETUP: Factory Calibration Tag 4. CAL: Calibration Tag 5. Automatic Temperature Compensation (blinks when temperature exceeds 0-40°C / 32-104°F range) 6. -
Page 7: Measurement Guidelines
MEASUREMENT GUIDELINES MEASUREMENT GUIDELINES MEASUREMENT GUIDELINES MEASUREMENT GUIDELINES 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 8: Measurement Procedure
3. Press the ZERO key. If no error messages appear, your unit is calibrated. (For a description of ERROR MESSAGES see page 11). Note: The 0.0 screen will remain until a sample is measured or the instrument is turned off. 4. -
Page 9: To Change Measurement Unit
4. Remove sample from the sample well by absorbing with a soft tissue. 5. Using a plastic pipette, rinse prism and sample well with distilled or deionized water. Wipe dry. The instrument is ready for the next sample. TO CHANGE MEASUREMENT UNIT TO CHANGE MEASUREMENT UNIT TO CHANGE MEASUREMENT UNIT TO CHANGE MEASUREMENT UNIT... -
Page 10: Making A Standard Solution
WARRANTY WARRANTY WARRANTY The HI 96831 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to the instructions. This warranty is limited to repair or replacement free of charge. -
Page 11: Error Messages
ERROR MESSAGES ERROR MESSAGES ERROR MESSAGES ERROR MESSAGES ERROR MESSAGES r c s . e r “ “ r u r t . t n r o r s i s , s t L “ “ l p s H “...