Hanna-instruments HI 83749 Manual de usuario descargar pdf (Pagina 19)

• Replace the cap. Invert several times to mix and

then wait for 1 minute.

• Insert the cuvet into the instrument and close

the lid.

• Press READ

and “----” will blink on the

display. After a few seconds the instrument

displays the first reading. The meter continues

updating the readings until the “Lamp and Read

Status” indicator turns off.

• The final displayed value is the averaged reading

of turbidity in NTU.

This is T2. Record the value.

• If “T2<T1+2” the wine can be considered

stable. Otherwise the wine needs to be

stabilized.

Note: to get more representative results of long

term protein stability, HANNA Instruments

recommends to filter the wine sample first

through a 0.45 micron filterdisc before analysis.

e.g.

• Place the cuvet #1 into the instrument and

close the lid.

• Press READ and “----” will blink on the

display. After a few seconds the instrument

displays the first reading. The meter continues

updating the readings until the “Lamp and Read

Status” indicator turns off.

• The final displayed value is the averaged

reading.

This is T1 for sample #1. Record the value.

• Remove cuvet #1 from the instrument and

open the cap.

• Use the 1000 µL automatic pipette to add

exactly 1 mL of HI 83749-0 Bentocheck

reagent to the cuvet. For a correct use of the

automatic pipette please follow the related

Instruction Sheet.

• Replace the cap. Invert several times to mix and

then wait for 1 minute.

• Insert the cuvet into the instrument and close

the lid.

• Press READ

and “----” will blink on the

display. After a few seconds the instrument

displays the first reading. The meter continues

updating the readings until the “Lamp and Read

Status” indicator turns off.

e.g. Sample #1

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Hanna-instruments HI 83749 Manual de usuario Pagina 19

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