Hanna Instruments HI 83742 Instruction Manual
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Hanna Instruments HI 83742 Instruction Manual

Color & phenols ism for wine analysis
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Instruction Manual
HI 83742
COLOR & PHENOLS
ISM
for wine analysis
This Instrument is in
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Compliance with the CE Directives

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Summary of Contents for Hanna Instruments HI 83742

  • Page 1 Instruction Manual HI 83742 COLOR & PHENOLS for wine analysis This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the CE Directives...

  • Page 2: Table Of Contents

    WARRANTY ........................27 you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid.

  • Page 3: Preliminary Examination

    ACCESSORIES PRELIMINARY EXAMINATION Please examine this product carefully. Make sure that the instrument is not damaged. If any damage REAGENT SETS occured during shipment, please notify your Dealer. HI 83742-20 Phenols reagent set for wine (20 tests) Each HI 83742 Ion Selective Meter is supplied complete with: HI 83742-25 Color reagent set for wine (20 tests) containing HI 83742-0 Wine Solvent 1 •...

  • Page 4: General Description

    GENERAL DESCRIPTION MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT • Press “RANGE” to select the parameter code “P5” for The HI 83742 is an auto-diagnostic portable microprocessor meter that benefits from Hanna’s total phenols, red wine (see page 13). 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.

  • Page 5: Specifications

    • Use the 200 µL automatic pipette with a clean The reaction between phenols and the Folin-Ciocalteu reagent involves oxidation of the phenolic groups (R- pipette tip to add exactly 0,2 mL of diluted red OH) with a mixture of phosphotungstenic acid (H ) and phosphomolybdenic acid (H ) to wine sample.

  • Page 6: Principle Of Operation

    PRINCIPLE OF OPERATION TOTAL PHENOLS, RED WINE SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Range 0.00 to 5.00 g/L Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and Resolution 0.01 matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, Precision ±0.10 @ 2.00 g/L molecules or crystal lattices.

  • Page 7: Abbreviations

    A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the • Press “RANGE” to select the parameter code “P4” for cuvet.

  • Page 8: Functional Description

    FUNCTIONAL DESCRIPTION • Add 6 drops of HI 83742B-0 Folin & Ciocalteu’s Reagent to the cuvet. INSTRUMENT DESCRIPTION 1) Lid 2) Cuvet Holder 3) Liquid Crystal Display (LCD) 4) ON/OFF key, to turn the meter on and off 5) ZERO key, to zero the meter FRONT •...

  • Page 9: Guide To Display Codes

    TOTAL PHENOLS, WHITE WINE GUIDE TO DISPLAY CODES SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS This prompt appears for a few seconds each time the instrument is Range 0.000 to 0.750 g/L turned ON. Resolution 0.001 Precision ±0.015 @ 0.350 g/L Light Source Tungsten lamp with narrow band interference filter @ 610 nm Method The reaction between Phenols and the reagents causes a blue tint in the...
  • Page 10 Indicates that the batteries are dead and must be replaced. After this • Fill an empty cuvet with deionized water and replace message appears, the instrument is switched off. Change the batteries (Zero) the cap. This is the zero zero zero zero.

  • Page 11: General Tips For An Accurate Measurement

    GENERAL TIPS FOR AN ACCURATE MEASUREMENT COLOR HUE The instructions listed below should be carefully followed during testing to ensure best accuracy. SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Range 0.00 to 9.99 • For a correct filling of the cuvet: the liquid in the 10 mL Resolution 0.01...
  • Page 12 • Proper use of the dropper: MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT (a) to get good reproducible results, tap the dropper on the table for several times and wipe • Press “RANGE” to select the parameter code “P2” for the outside of the dropper tip with a cloth. color density - red wine (see page 13).

  • Page 13: Operational Guide

    COLOR DENSITY, RED WINE OPERATIONAL GUIDE SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS MEASUREMENT PROCEDURE Range 0.00 to 15.00 • Turn the instrument on by pressing ON/OFF. Resolution 0.01 Precision ±0.20 @ 5.00 • The meter will first perform an LCD self diagnostic test Light Source Tungsten lamp with narrow band interference filters @ 420 and 520 nm by displaying a full set of figures.

  • Page 14: Color Density, White Wine

    COLOR DENSITY, WHITE WINE • After a few seconds the display will show “-0.0-”. SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS The meter is now zeroed and ready for measurement. Range 0.000 to 1.000 Resolution 0.001 Precision ±0.010 @ 0.200 • Remove the cuvet from the instrument. Light Source Tungsten lamp with narrow band interference filter @ 420 nm Method...

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