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Summary of Contents for Hanna Instruments HI 84102
- Page 1 Instruction Manual HI 84102 TITRATABLE TOTAL ACIDITY MINITITRATOR for wine analysis w w w. h a n n a i n s t . c o m...
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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 the instrument. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. This instrument is in compliance with directives. -
Page 3: Preliminary Examination
Any defective item must be returned in its original packing. GENERAL DESCRIPTION The HI 84102 is a low cost, easy to use, microprocessor-based automatic titrator that benefits from Hanna’s years of experience as manufacturer of analytical instruments. It has an simple and yet accurate peristaltic pump to ensure the best accuracy and repeatability. By performing pump calibration with the provided Hanna standards, the instrument accuracy is assured. - Page 4 By simply pressing the START STOP button, the instrument will automatically make the titration up to the end point. The result is immediately displayed in convenient units, then the instrument is ready for another titration. SIGNIFICANCE OF USE Acids occur naturally during the growing of grapes and as part of the fermentation process. Wines show lower levels of acid when there are hot growing seasons or when the grapes come from hotter regions.
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Page 5: Specifications
208 x 214 x 163 mm (8.2 x 8.4 x 6.4") (with beaker) Weight 2200 g (77.6 oz.) REQUIRED REAGENTS Code Description Quantity/test HI 84102-50 Titrant HI 84102-55 Standard 2 mL HI 84102-60 Buffer Solution 1 pH 7.00 50 mL HI 84100-61 Buffer Solution 2 pH 8.20... -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION The determination of total acids in wine is made according to a neutralization reaction, that is the reaction between the acids found in wine and a base. This type of reaction forms the basis of titration methods of analysing acids. Titratable acidity is measured on a degassed sample at the end-point of 8.20 for Australian requirements and 7.00 to fulfil the requirements of the European Union. -
Page 7: Functional Description
FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL 1) Titrant bottle 2) Liquid Crystal Display (LCD) 3) Keypad 4) Electrode holder 5) Peristaltic pump tube REAR PANEL REAR PANEL REAR PANEL REAR PANEL REAR PANEL... - Page 8 6) pH Electrode 7) Temperature probe 8) Beaker 9) Temperature probe socket 10) BNC electrode connector 11) Fuse 12) Power switch 13) Power cable connector 14) Peristaltic pump KEYPAD DESCRIPTION 1) PURGE - to start/stop purging (max purging time is 5 min) 2) CAL PUMP - to enter pump calibration mode 3) START STOP - to start/stop titration, pump calibration or pH calibration 4) SETUP - to enter/exit SETUP menu...
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Page 9: Start Up
1) Selected mode: SETUP, CAL or CFM for confirming different values 2) Stability indicator: when reading is unstable or calibration is in progress 3) Stirrer active tags 4) Calibration messages 5) Pump active tags 6) Calibration messages 7) “pH” tag: when a buffer is displayed on the secondary display 8) Four digit and half secondary display 9) “Time”... -
Page 10: Guide To Display Codes
GUIDE TO DISPLAY CODES This prompt appears for a few seconds each time the instrument is turned ON. Main screen display. Main screen display with stirrer active. Purging mode message. PUMP CALIBRATION MESSAGES This screen appears each time the meter enters pump calibration mode. - Page 11 This error message appears when the standard solution is wrong. This error message appears when the input readings (pH, temperature) exceed the input limits. pH CALIBRATION MESSAGES This screen appears each time the titrator enters pH calibration mode. This screen appears when the pH calibration is started by pressing the START STOP button.
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Page 12: Tips For An Accurate Measurement
TITRATION MESSAGES This screen appears each time the minititrator enters TITRATION mode. Press the START STOP button in order to stop the titration and return to the main screen. The titration result, expressed as concentration of tartaric acid in g/L, is displayed at the end of the titration process. -
Page 13: Measurement Procedure
MEASUREMENT PROCEDURE Warning: Make sure the instrument has been calibrated (pH and pump calibration) before performing a wine sample analysis. • Use the 2000 µL automatic pipette to add exactly 2 mL of wine sample to the 50 mL beaker. •... -
Page 14: Ph Calibration Procedure
It is recommended to perform the pump calibration before each set of measurements. • To prepare the sample for calibration, follow the measurement procedure for Total Titratable Acidity measurements by using HI 84102-55 Total Titratable Acidity Standard instead of wine sample. • After sample preparation, press the CAL PUMP button. -
Page 15: Pump Tube Replacement
• Press START STOP in order to start the pump calibration. • At the end of the calibration procedure done appears for a few seconds and then the meter automatically returns to measurement mode. PUMP TUBE REPLACEMENT To remove the tube of the peristaltic pump follow next steps: •... -
Page 16: Fuse Replacement
FUSE REPLACEMENT To change the fuse follow next steps: • Disconnect the power cord from the rear panel of the instrument. • Pull out the fuse holder located near the power cord connector. • Replace the fuse with a similar one. •... - Page 17 If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add HI 7082 3.5M KCl Electrolyte Solution. For faster response, unscrew the fill hole screw during measurements. STORAGE PROCEDURE To minimize clogging and assure a quick response time, the glass bulb and the junction of the electrode should be kept moist and not allowed to dry out.
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Page 18: Accessories
HI 70300LElectrode storage solution (500mL) HI 70635LCleaning solution for wine deposits (500mL) HI 70636LCleaning solution for wine stains (500 mL) HI 7082 Electrode filling solution (4 X 30 mL) HI 84102-50 Titrant solution (110mL) HI 84102-55 Calibration standard (100mL) HI 84102-60 Buffer solution 1 pH 7.00 (500 mL) -
Page 19: Warranty
WARRANTY HI 84102 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. Damage due to accident, misuse, tampering or lack of prescribed maintenance is not covered. - Page 20 SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel.
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