Instruction Manual HI 96811, HI 96812 HI 96813, HI 96814 Refractometers for Wine and Grape Product Measurements w w w. h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct use of these instruments. Please read it carefully before using the meters. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. These instruments are in compliance with directives. TABLE OF CONTENTS PRELIMINARY EXAMINATION .............................................................................................
GENERAL DESCRIPTION The HI 96811, HI 96812, HI 96813 and HI 96814 Digital Wine Refractometers are rugged portable, water resistant devices that benefit from Hanna’s years of experience as a manufacturer of analytical instruments. Hanna offers four related wine refractometers to fill the differing requirements found in the industry. All are equally valid ways to measure the sugar content of grape or must samples in the field or winery.
SPECIFICATIONS HI 96811 Range: Resolution: Accuracy: 0 to 50 %Brix / 0 to 80°C (32 to 176°F) 0.1 %Brix / 0.1°C (0.1°F) ±0.2 %Brix / ±0.3°C (±0.5°F) HI 96812 Range: Resolution: Accuracy: 0 to 28 °Baumé / 0 to 80°C (32 to 176°F) 0.1 °Baumé / 0.1°C (0.1°F) ±0.1 °Baumé / ±0.3°C (±0.5°F) HI 96813 Range: Resolution: Accuracy: 0 to 50 %Brix / 0 to 25 % v/v Potential Alcohol / 0 to 80°C (32 to 176°F) 0.1 %Brix / 0.1 % v/v Potential Alcohol / 0.1°C (0.1°F) ±0.2 %Brix / ±0.2 % v/v Potential Alcohol / ±0.3°C (±0.
PRINCIPLE OF OPERATION %Brix, °Baumé, °Oechsle, °KMW and % potential alcohol determinations are made by measuring the refractive index of a solution. Refractive Index is an optical characteristic of a substance and the number of dissolved particles in it. Refractive Index is defined as the ratio of the speed of light in empty space to the speed of light in the substance.
MEASUREMENT UNITS HI 96811, HI 96812, HI 96813 and HI 96814 measure sugar content in several units to meet the differing requirements found in the wine industry. HI 96811, HI 96813 and HI 96814 convert the refractive index of the sample to sucrose concentration in units of percent by weight, %Brix (also referred to as °Brix). The conversion used is based on the ICUMSA Methods Book (International Commission for Uniform Methods of Sugar Analysis).
FUNCTIONAL DESCRIPTION TOP VIEW 1. 2. 3. 4. 5. 6. 7. 8. Liquid Crystal Display (LCD) READ Key (User Measurement) ZERO Key (User Calibration) ON/OFF Primary Display Secondary Display Stainless Steel Sample Well and Prism RANGE (HI 96813 and HI 96814 only) BOTTOM 9. Battery Cover 10.
DISPLAY ELEMENTS 1. 2. 3. 4. 5. 6 7. 8. 9.
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. The instrument is intended to measure grape/wine solutions. Do not expose instrument or prism to solvents that will damage it. This includes most organic solvents and extremely hot or cold solutions. Particulate matter in a sample may scratch the prism.
3. Press the ZERO key. If no error messages appear, your unit is calibrated. (For a description of ERROR MESSAGES see page 14). 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. Dry the surface completely. The instrument is ready for sample measurement. Note: If instrument is turned off the calibration will not be lost.
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. 4. Remove sample from the sample well by absorbing on 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.
For HI 96814 only: 1. Press the RANGE key to select measurement units %Brix, °Oechsle (°Oe) or °KMW (°Babo). The instrument toggles between the three scales each time the key is pressed and the primary display indicates “bri” for %Brix, “OE” for °Oechsle or “bAbo” for °KMW. When the instrument displays the screen with 4 dashes the instrument is ready for measurement.
TO CHANGE POTEN POTENTTIAL ALCOHOL CONVERSION FACTOR (HI 96813 only only)) To change the potential alcohol conversion factor, follow this procedure. 1. Press and hold ON/OFF key continuously for approximately 8 seconds. The LCD will display all segments screen followed by a screen with the model number on the primary display and the version number on the secondary display. Continue pressing the ON/OFF key. 8 seconds 2. While continuing to hold ON/OFF, press the RANGE key.
ERROR MESSAGES Error Code LCD Descript ion “Err“ G e n e ra l f a i l u re . C y c l e p owe r t o instrument. If error p ersists, conta ct Ha nna . “LO“ Prima ry d isp la y Sa mp le is rea d ing lower tha n the 0 % sta n d a rd u sed f or m eter ca lib ra tion. “HI “ Prima ry d isp la y Sa m p l e exceed s m a xi m u m mea surement ra ng e. “LO“ Prima ry d isp la y “CAL“ seg ment ON W ron g sol u ti on u sed to zero i n stru m e n t. U se d e i on i ze d or d istilled wa ter. Press ZERO.
BATTERY REPLACEMENT To replace the instrument’s battery, follow these steps: • Make sure the instrument is off. • Turn instrument upside down and remove the battery cover by turning it counterclockwise. • Extract the battery from its location. • Replace with a new 9V battery making sure to observe polarity. • Insert the back battery cover and fasten it by turning clockwise to engage.
SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel. (210) 4584.2941 • Fax (210) 4584.2942 Japan: Tel. (03) 3258.9565 • Fax (03) 3258.9567 Korea: Tel. (02) 2278.5147 • Fax (02) 2264.1729 Malaysia: Tel. (603) 5638.9940 • Fax (603) 5638.9829 Singapore: Tel. 6296.
