instructions manual free and total so analyser

INSTRUCTIONS MANUAL

Free and total SO analyser2

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4 glass tubes for toning

4 rubber stoppers nº5

4 stirrer magnets 6x20 mm

1 nut clip for burette

1 inox rack for 12 tubes

1 power voltage feeder

1 titration liquid 500 mL

1 starch indicator 250 mL

1 acid 500 mL

1 alkali 500 mL

1 beaker 100 ml p.p. for furring

1 instructions manual

ref. 3026056

ref. 47185050

ref. 137115

ref. 63204115

ref. R292

ref. 0002065

ref. 1006009

ref. 1005001

ref. 1006008

ref. 1006010

ref. 409100

Included material

ref. 1010012

GAB Sistemática Analítica S.L.

Sant Jordi, 30. Moja-Olèrdola 08734, BCN [Spain]Tel. +34 938 171 842 Fax. +34 938 171 436

www.gabsystem.com [email protected]

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1 pipette 25 mL double line A class

2 graduated pipettes 5 mL

1 graduated pipette 10 mL

1 burette 25 mL

ref. 3019026

ref. 3019013

ref. 3019017

ref. 3019068

Required material

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Ripper method

simple and easy to use

very practical

without maintenance

no need of calibration

autotune

economic reagents

compact design

power voltage: 12V·

Characteristics

175m

m

15

0m

m

165m

m

50

0m

m

Peso2,15 Kg

1011

12

13

With the help of pipettes add in one of the tubes

to analyse, and

Place the tube inside the Toning.

till the limit of the upper side of the instrument.

Place the tip of the burette in the center of the tube.

Press the key.A led will shine counterclockwise, the sample will

stir and will autotune. Once finished the autotune a double “pip” will

sound indicating the begining of the analysis. , whites, will

remain illuminated indicating . Otherwise and

indicating in adjustment. In this case

.

Add the reagent observing the luminous variation from the circle of leds.

When all leds are nearly iluminated add the reagent more carefully till

maintain all the . In this case 3 long beeps

will sound indicating end of analysis.

Take note of the spended volume in the burette.

and will get the content of free sulphurous in

milligrams per liter [ ].

For further analysis follow .

25 mL of the wine

sample 1-2 mL of Starch Indicator 5 mL of Acid.

Add distilled water

run/stop

Led #1 and #2

adjustment OK led #1 led

#2 will blink error go to

observations

circle lighted during 10 seconds

The read volume is

multiplied by 10 factor

mg/L SO

steps from 05 to 122

06

070809

Operative Techinque

Free sulphurous:

05

InstructionsAssembly

Set the rod in the corresponding hole from the back and turn it

clockwise, later set the nut clip.

Place a 25 mL burette in the burette support. with

.

Place the glass tubes in the rack and put one stirrer magnet inside them.

Connect the power voltage feeder and press . The leds will shine

on indicating current in the instrument. will remain .

Fill it Titration Liquid

(Potassium Iodate N/128)

power

Led #1 illuminated

01

02

0304




Using a fill, with the help of a pipette,

, and .

Fill with water till the mark and place inside the instrument.

Fill the burette and center it in the middle of the tube.

Press the .You will hear an acoustic

signal and will begin the special mode for modena vinegars.

Analyse like in wines. Follow .

Once the analysis is finish the spent volume in the burette by

(see next page table) and will obtain the mg SO /L.2

tube of 25 cm. long 10 mL of

modena vinegar sample 2 mL of Starch Indicator 5 mL of Acid

run/stop button during 2 seconds

steps 10 and 11

multipy 25

factor

20

212223

24

With the help of pipettes add in one of the tubes

to analyse and .

Cover it with the rubber stopper, mix it and

in the rack.

Once time elapsed uncover it and add and

.

Follow .

For further analysis follow .

25 mL of the sample of

wine 10 mL of Alkali

let it rest during 15 minutes

1-2 mL of Starch Indicator 5

mL of Acid

steps from 06 to 12 without adding distilled water

steps from 14 to 17

14

15

16

1718

Introduction and Operative Technique for balsamic vinegars

Fill and

Cover it, mix it, and let it during .

Past this time add and .

Follow former steps .

To repeat an analysis follow steps .

10 mL of modena vinegar sample 15 mL of Alcali.

rest 5 minutes

2 mL of Starch 8 mL of Acid

from 21 to 25

from 20 to 25 and from 26 to 29




2627282930

25

By default, balsamic vinegars don’t have (or just a few which is

contemptible) free SO but, by effect of sugar and the intense colour, an

error is titrated.This error can be quantified and is generated the same

one when titrating total SO . Once analysed, this error is substracted

from total SO result obtaining the mg/L of real total SO .

2

2

2 2

19

Total sulphurous:

Step_1: Free sulphurous:

Step_2:Total sulphurous:

Observations

It is recommended to add the sample and reagents with the glass tube

inside the rack to avoid spill liquids over the instrument.

The must be before each analysis.

having added the Acid reagent.

If and means that the sample of wine have not been able to

pass the autotune because it may be a very intensive in colour wine (bigger

than ) or very muddy (bigger than

).In such case repeat for the free SO for total

SO with and where accor-

ding to attached table from next page.The graphics show an illustrative sum-

mary:

It is important not to touch the tube once is inserted inside the

instrument as glass walls from the tube are not completely regular so a

turn or movement will alter the light beam.

The addition of reagent must be done in continuous way.When the

is achieved it is essential the addition by drops in order not to pass

over.

For the totals analysis it is not necessary to add water.

To the instrument press button during .

Burette not included.Any burette can be used from the laboratory.

2

2

tube clean and dry

Analyse immediately after

led #1 led #2 blink

15 units of intensity 3000 units of turbidity

NTU steps 05 to 12 or 14 to 17

10 mL of sample the multiplier factor will be 25

final

zone

disconnect power 3 seconds

Try to maintain always the same working conditions.

To enter in press the button during

till 3 short beeps are heard.

To recover normal working mode press once button.

After 15 minutes of not working (no analysis done) the instrument is auto

shutdown.

modena vinegars mode run/stop 2

seconds

run/stop

NTU

0 3000

25 mL 10 mL

I

0 15

25 mL 10 mL







04

06

01

07

04

09

08

02

01

03

10 20 25

IODINE N/50 64 32 25.6

IODINE N/128 25 12.5 10

TABLE OF MULTIPLIER COEFFICIENTS

SAMPLE VOLUME [mL]

Codes guide

Led #1

Current

run/stop

power

, white, lighted:

in the instrument.

Connect: press once.

Shut down: press during 3 seconds.

Led #1 Led #2 led #3

OK

and , white, lighted and ,

blue, blinking:

Adjustment . Beggining of analysis.

Led #1 Led #2

not OK 10

mL of sample multiplier factor 25

and , white, blinking:

Adjustment . Repeat analysis with

and .




All blue leds lighted:

.Will keep like this till

or is pressed.

Read the burette spent volume and multiply by

the corresponding factor according to table.

End of analysis run/stop

power

Codes guide

It covers all the manufacture defects, provided that no manipulation has

been done by not authorised personnel, during 2 years, except defects

induced for bad use.

Warranty




All leds lighted:

If it keeps like this

during 10 seconds the analysis will be finished,

otherwise 1 or 2 more drops of Titration

Liquid will be needed.

Testing end of analysis:


Sant Jordi, 30

08734 Moja-Olèrdola

BARCELONA [Spain]

Tel. +34 938 171 842

Fax. +34 938 171 436

[email protected]

www.gabsystem.com

instructions manual free and total so analyser

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