Instruction Manual HI 83746 REDUCING SUGARS ISM for wine analysis This Instrument is in Compliance with the CE Directives www.hannainst.
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. TABLE OF CONTENTS PRELIMINARY EXAMINATION .............................................................................................. 3 GENERAL DESCRIPTION .
GENERAL DESCRIPTION SPECIFICATIONS The HI 83746 is an auto-diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has an advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings. All instruments are factory calibrated. The auto-diagnostic feature of this meter ensures always optimal measurement conditions to ensure most precise readings.
PRINCIPLE OF OPERATION Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, molecules or crystal lattices.
FUNCTIONAL DESCRIPTION GUIDE TO DISPLAY CODES INSTRUMENT DESCRIPTION 1) 2) 3) 4) 5) 6) 7) 8) FRONT Lit Cuvet Holder Liquid Crystal Display (LCD) ON/OFF key, to turn the meter on and off ZERO key, to zero the meter TIMER key, to activate a countdown READ key, to perform measurement Power Socket 12V to 20V DC 2.5 Watt This prompt appears for a few seconds each time the instrument is turned ON.
Indicates that the batteries are dead and must be replaced. After this message appears, the instrument is switched off. Change the batteries and restart the meter. ERROR MESSAGES The meter has lost its configuration. Contact your dealer or the nearest Hanna Customer Service Center. GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed during testing to ensure best accuracy.
MEASUREMENT MEASUREMENT PROCEDURE Note: A single blank vial may be used more than once; the blank vial is stable up to one week if stored in a dark place at room temperature. Always use the same lot of reagents for blank and samples. For most accurate measurement run a blank for each set of mesurement. Note: If the expected RS concentration is above 50.00 g/L (for example for must analysis), it is recommended to dilute the sample 4 or 5 times with water.
• Insert the vials into the reactor and heat them for 7 minutes at 105°C. Note: to obtain most accurate results, it is recommended to use the pre-programmed timer of the instrument, and remove the vials from the reactor after exactly 7 minutes. Turn the meter on by pressing ON/OFF and then press TIMER to activate a 7 minutes countdown. • After a few seconds the display will show “-0.0-”. The meter is now zeroed and ready for measurement. Remove the Blank Vial. • Insert the Sample Vial into the instrument.
BATTERIES REPLACEMENT CE DECLARATION OF CONFORMITY Battery replacement must only take place in a non-hazardous area. The blinking “ ” will appear when the batteries power gets low. When batteries are completely discharged, “0% bAtt” will appear and after two seconds the instrument is switched off. Remove the battery cover from the bottom of the instrument and change the old batteries with 4 fresh 1.5V batteries, paying attention to the correct polarity. Replace the cover.
HANNA LITERATURE USER NOTES Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers areas such as: Date Reducing Sugars (g/L) Notes • Water Treatment • Process • Swimming Pools • Agriculture • Food • Laboratory and many others. New reference material is constantly being added to the library. For these and other catalogs, handbooks and leaflets contact your dealer or the Hanna Customer Service Center nearest to you.
MAN83746 10/05 w w w . h a n n 20 a i n s t .
