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10

ERROR  MESSAGES

The meter has lost its configuration. Contact your dealer or the nearest
Hanna Customer Service Center.

“Light high”: there is too much light to perform a measurement.
Please check the preparation of the zero cuvet.

“No Light”: the lamp is not working because of a malfunction. Contact
your dealer or the nearest Hanna Customer Service Center.

a) on zero reading:

a) on zero reading:

a) on zero reading:

a) on zero reading:

a) on zero reading:

A flashing value of the maximum concentration indicates an over
range condition. The concentration of the sample is beyond the
programmed range: dilute the sample and measure again.

The sample absorbs less light than the zero reference. Check the pro-
cedure and make sure you use the same cuvet for reference (zero)
and measurement.

“Inverted”: the sample and the zero cuvet are inverted.

b) on sample reading:

b) on sample reading:

b) on sample reading:

b) on sample reading:

b) on sample reading:

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.

“Light low”: there is not enough light to perform a measurement.
Please check the preparation of the zero cuvet.

11

The instructions listed below should be carefully followed during testing to ensure best accuracy.

• For dosing the wine sample, we recommend to use

the supplied Hanna HI 731340 automatic pipette.
For a correct use of the Hanna automatic pipette,
please follow the related Instruction Sheet.

• In order to avoid reagent leaking and to obtain

more accurate measurements, it is recommended

to close the cuvet first with the supplied HDPE
plastic stopper 

and then with the black

cap.

• In order to measure exactly 5 mL of reagent with

the 5 mL syringe:
(a) push the plunger completely into the syringe and insert the tip into the reagent bottle.
(b) pull the plunger up until the lower edge of the seal is exactly on the 5 mL mark.
(c) take out the syringe and clean the outside of the syringe tip. Be sure that no drops are

hanging on the tip of the syringe, if so eliminate them. Then, keeping the syringe in
vertical position above the cuvet, push the plunger completely down into the syringe. Now
the exact amount of 5 mL has been added  to the cuvet.

GENERAL TIPS FOR AN ACCURATE MEASUREMENT

Hanna
automatic pipette

(a)

(b)

(c)

Содержание HI 83748

Страница 1: ...Instruction Manual HI 83748 TARTARIC ACID ISM for wine analysis w w w h a n n a i n s t c o m This Instrument is in Compliance with the CE Directives MAN83748R3 04 06 w w w h a n n a i n s t c o m...

Страница 2: ...N ACCURATE MEASUREMENT 11 MEASUREMENT PROCEDURE 13 BATTERIES REPLACEMENT 16 ACCESSORIES 16 CE DECLARATION OF CONFORMITY 17 WARRANTY 17 HANNA LITERATURE 18 USER NOTES 19 Dear Customer Thank you for cho...

Страница 3: ...s Tissue for wiping cuvets Instruction manual Instrument Quality Certificate Rigid carrying case Note save all packing material until you are sure that the instrument works correctly Any defective ite...

Страница 4: ...n poly phenols and tartaric acid in red and proteins in white wine This explains why as pigment polymerization occurs the holding capacity of tartaric acid diminishes resulting in delayed casse The su...

Страница 5: ...ccurate The figure explains these definitions In a laboratory using a standard solution of 2 0 g L tartaric acid and a representative lot of reagent an operatorobtainedwithasingleinstrumentastandard d...

Страница 6: ...the substance as the other factors are known Photometric chemical analysis is based on the possibility to develop an absorbing compound from a specific chemical reaction between sample and reagents G...

Страница 7: ...zeroing cuvets are optically identical to provide the same measurement conditions Whenever possible use the same cuvet for both It is necessary that the surface of the cuvet is clean and not scratche...

Страница 8: ...READ key to perform measurement 8 Power Socket 12V to 20V DC 2 5 Watt FUNCTIONAL DESCRIPTION FRONT REAR INSTRUMENT DESCRIPTION 13 Turn the instrument on by pressing ON OFF MEASUREMENT PROCEDURE When t...

Страница 9: ...ng a zero measurement The light intensity is automatically re adjusted auto calibration features if necessary 12 Proper use of the dropper a to get good reproducible results tap the dropper on the tab...

Страница 10: ...ries and restart the meter Light low there is not enough light to perform a measurement Please check the preparation of the zero cuvet 11 The instructions listed below should be carefully followed dur...

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