Milkotronic LACTOSCAN SA Operation Manual

Ultrasonic milk analyser

Milkotronic Ltd

LACTOSCAN SA

MILK ANALYZER

LCD display – 4 lines x 16 characters

Operation manual

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Ultrasonic milk analyser

Switching Adapter

• Input: 100 - 240 V ~1.6 A max. 50-60 Hz

• Output: +12 V

3 А min.

• Output power: 36 - 42 W

Measurement modes

• cow milk

• sheep milk

• UHT milk

• goat milk

• buffalo milk

• cream

• whey

• recovered milk

• other /pasteurized milk/

CAUTION!

Keep the switching adapter dry!

Please, read and follow strictly all the instructions in the manual.

Due to continuous improvement in the device, information contained in this manual is subject to change without notice. Contact the company-producer

for revisions and corrections

4, Narodni Buditeli Str.

8900 Nova Zagora

BULGARIA

Phone/Fax: + 359 457 67082

e-mail: office@lactoscan.com

www.lactoscan.com

www.milkotronic.com

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Ultrasonic milk analyser

SAFETY INSTRUCTIONS

1. Read this manual carefully and make sure that you understand all the instructions.

2. For safety purposes the device is equipped with grounded power cable. If there is no grounded electrical outlet where the device will be used, please, install suc h be f ore using the device.

3. Place the device on leveled and stable plate. In case it falls or is severely shocked it may be damaged.

4. Connect to the electri cal network in such a wa y that the power cable to stay away from the side for accessing the device and not to be stepped on.

5. Every time before cleani ng the device swit ch it off and unplug it from the electrical outlet. The device has to remain unplugged till the cleaning completion.

6. Do not disassemble the unit in order to avoid possible electrical shock. In case of malfunct ion contact your local dealer.

7. Handle the liquids the device works with carefully, following all the instructions for their preparation.

8. Place the switching adaptor in such a way as to be protected from overflow and spillage of liquids.

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Ultrasonic milk analyser

№

Description

Item №

pcs

Ultrasonic portable milk analyzer

LSSA001

50 sec

30 sec

Operation

manual

LSSA00

Plastic sample holder

LSSA003

Spare Pipes

LSSA004

12 V DC Power Supply Cable

LSSA005

Alkaline cleaning solution Lactodaily

100 g

Acidic cleaning solution Lactoweekly

100 g

№

Description

not included in the set (may be

Item №

pcs

RS232 Interface Cable - Analyser-IBM PC

LSSA006

Service Pack - CD

LSSA007

pH measuring system

LSSA009

10.

pH probe with cable and holder

11.

Buffer solution Ph 60 ml (pH7.00±0.01/20˚C)

LSSA011

12.

Buffer solution pH 60 ml (pH4.00±0.01/20˚C)

LSSA012

13.

Milk conductivity measuring system

LSSA013

14.

Buffer solution conductivity 50 ml (5.02 (±5%) mS/cm (18±0.1˚C)

LSSA014

15.

Real time clock

LSSA015

16.

High-fat measuring function

LSSA016

17.

ECS POS Serial Printer

LSSA017

PARTS AND ACCESSORIES

In the table below the standard delivery configuration of the milk analyzer is listed:

1 sample measurement time

In the table below the milk analyzer spares and accessories, which are delivered on customers request are listed:

a) included in the set: b)

additionally bought):

LSSA010

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Ultrasonic milk analyser

18.

12 V Serial Printer Power Supply Cable

LSSA018

19.

RS232 Interface Cable - Milk Analyser – Serial Printer

LSSA019

20.

Carrying case

LSSA020

21.

Plug type

1 1

22.

Spare O-ring for the pH probe

23.

USB flash drive (slot)

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Ultrasonic milk analyser

1. FUNCTION

The function of the milk a na lyzer is to make quick analysis of mil k on f a t (FAT), non-fat solids (SNF), proteins, lactose and water content percentages, temperature ( conductivity as well as density of one and the same sample directly after milking, at collecting and during processing.

С), pH, freezing point, salts, total solids,

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Ultrasonic milk analyser

2. TECHNICAL PARAMETERS

2.1. Working modes characteristics:

The program of the milk analyzer has four working modes.

2.1.1. Measurement mode milk / dairy product – first type

2.1.2. Measurement mode milk / dairy product – second type

2.1.3. Measurement mode UHT milk / dairy product – third type

These modes have been calibrated on customers’ request for 3 milk types from the following: cow, sheep, UHT, buffalo, goat, camel milk, cream, ice cream mixtures, whey, recovered milk, etc. before leaving the production facilities and the text on the display will be for the corresponding types, as is indicated on page 2 Measurement modes.

2.1.4. Cleaning

2.1.4.1. Current

2.1.4.2. Final

Note: For devices with a 5 button keypad on the front panel by pressing the extra buttons, you can run the following commands: Pressing the button labeled A - start re-printing the results Pressing the button labeled B - start of flushing (2.1.4.) These commands are possible when the unit is in Idle mode, i.e. expecting command for measuring sample.

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Ultrasonic milk analyser

Fat ………………........... .. ........

…………..from 0.01% to 25% (45%*)

SNF ………………………………

...…………………....from 3% to 40%

Density ** ……………………….

……...…….from 1000 to 1150 kg/m3

Proteins ………………………….

………………………..from 2% to 7%

Lactose ………………………...

…………………from 0.01 % to 20 %

Water content …………………

……………...……..from 0 % to 70 %

Temperature of milk ……………

from 1oC to 40oC (if measurement is 30 sec, then t° is from 15 to 40°)

Freezing point ***.………………

…………..from – 0,400 to – 0,700oC

Salts …………………………….

…...…………...………from 0,4 to 4%

PH*..……………………………...

…………………..………from 0 to 14

Conductivity* ** …………………

……………...…from 3 to 14 [mS/cm]

Total Solids* …………………….

………………………...from 0 to 50 %

Fat …..………………………………..

…...………………….…...± 0.06%

SNF …………………………………..

…………...………….…...± 0.15%

Density ………………………………

………………………..± 0.3 kg/m3

Proteins ……………………………...

……...……………….…...± 0.15%

Lactose ………………………………

.…………………………...± 0.20%

Water content ……………………….

.…………………………….± 3.0%

Temperature of milk ………………..

.………………………………± 1oC

Freezing point………………………..

..……...…………………± 0.005oC

Salts ………………………………...

…..…………...…………...± 0.05%

2.2. Measuring range:

* Option, on customers’ request ** Density data are shown in an abbreviated form. For example 27.3 have to

be understood as 1027.3 kg/m

. To determine the milk density, write down the result from the display and add 1000. Example: result 21,20; density = 1000 + 21,20 = 1021,2 kg/m

The abbreviated form of the density is used also when entering data for samples in working mode Recalibrate, for example: If the measured sample density is 1034.5 kg/m3, then in the menu for entering the samples parameters used for calibration, across the parameter Den = , you have to enter 34.5.

*** pH and conductivity measurements are optional and are embedded in the device on customers' request.

**** Please, carefully read Appendix Freezing Point.

2.3. Accuracy:

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PH…………………………………….

………………………………±0.05

Conductivity....……………………….

……………………………...±0.05

Total solids ………………………….

……………………………± 0.17%

Air temperature…………………………

….…from 10oC to 40oC (43 oC)

Relative humidity ………………………

……………...from 30% to 80%

Power supply …………………………

…………………...220V (110V)

extent of contamination at normal environmental conditions

…………………….…………..2

2.4 Correct ambient condit ions:

Accuracy is guaranteed in case of normal ambient conditions:

Accuracy values in point 2.3 are in dependence on the correctness of the corresponding chemical method, used for component content determination. In point 2.3. are used the following reference methods: Gerber – for fat, gravimetric – for SNF, Kjeldahl – for protein. The boundary for maximum variation of repeatability when the power supply voltage is from +10 to – 15% from the nominal voltage values (220V) have to be no more than 0.8 accuracy according point 2.3. The analyser is used in conditions free of outer electrical and magnetic fields (except the magnetic field of the Earth) and vibrations.

2.5. Dimensions: ……………… ……………..240/220/100 mm, mass 3,0 kg

2.6. Continuous working ti m e : ………………………………………non-stop

2.7 Milk sample volume per one measurement: ………..15 cm3 (= 25 ml)

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Ultrasonic milk analyser

1. pH probe(option)

10. Sample holder

2. printer (option)

11 Input pipe

3. keypad (option)

12. Hanger

4. Display

13. USB f lash drive (slot)

5-9. Buttons

Fig.1 Front panel

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Ultrasonic milk analyser

1. keypad (option)

8. Serial printer interface/RS232

2. Printer (option)

9. Waste solution output pipe orifice

3. pH-probe (option)

10. Cleaning solution input pipe orifice

4. Weigh Scale input (option)

11. Switching adapter

5. AC adaptor input

12. Power switch

6. DC Power Supply output

13. pH-meter input (option)

7. USB (option)

fig. 2 Back panel

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Ultrasonic milk analyser

Fig 3 Principle working schem e

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Ultrasonic milk analyser

Fig. 4 Connecting peripheral de vi ce s

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Ultrasonic milk analyser

Fig. 5 Cables description 90-1801-0008

RS232 Interface Cable - Milk Analyser – Serial Printer/ IBM PC

The connection of the analyser with other devices via RS232 Interface is made through the coupling DB9 on the back panel of the device. In it can be plugged only the cable, supplied by the producer with the analyser (or produced by the customer as per above scheme). The coupling from the cable, marked on the scheme with „TO LACTOSCAN” must be plugged in the computer. If due to some reason is used an external cable USB to RS232 Converter (usually when working with a laptop the customers buy such cables from the market), it must be plugged in the coupling “TO PC” of the original cable, not directly in the device.

90-1801-0009

DC 12V Power Supply Milk Analyzer Cable

1. GND

2. No connection

3. No connection

4. 12V DC

There’s an option in the analyser – embedded USB interface (USB to

RS232 Serial Converter) for connection with computer type IBM PC. It is

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Ultrasonic milk analyser

intended for connecting computers from laptop type, which have no RS 232 interface (COM Ports – DB9 Connector). This option may be available together with the standard RS232 – connector DB9, which always exists in the analyzers. At one and the same time, connection analyzer – computer, can be established only through one of the couplings – either only DB9, or only USB, i.e. analyzer could not be connected at one and the same time, using one of the interfaces with one and using the other interface to another, second computer. The coupling for this option (Printer Type) is at the back of the analyzer, next to the standard RS232 DB9 connector. Ot her USB devices like

printers, keypads etc COULD NOT be connected to this coupling.

USB interface is based on the element MCP2200 of the company

Microchip Technology Inc. – site:

http://www.microchip.com. For establishing

a connection through this interface a driver has to be installed for MCP2200 in the correspondent computer, which will be connected with the analyzer. Please, follow the procedure, from the Internet site of the producer:

http://www.microchip.com/wwwproducts/devices.aspx?ddocname=en546923,

by choosing the suitable for your operation system driver.

After installing the driver, choose the СОМ port, which will be used for the real communication. For Win XP it is done by executing the following commands: Start -> Settings -> Control panel -> System -> Hardware -> Device Manager -> Ports (COM and LPT) – Right Click -> Properties -> Port Settings -> Advanced -> COM Port Number. Choose Number 1 or if another number is chosen, for example 3, then, when working with the software tools, in the field COM Port (upper right corner), you have to set the new number of the port, in this case 3.

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Ultrasonic milk analyser

3. QUALIFICATION OF RAW MILK, THERMALLY TREATED MILK, OTHER DAIRY PRODUCTS AND DERIVATIVES

3.1. Taking samples and preparation for analysis

In order to receive reliable results in qualification of milk, dairy products and derivatives are needed: precise samples taking; correct samples storing (in need to be preserved); correct preparation before making measurement. The rules and requirements for this are described in details in Appendix Milk

sampling.

3.2. Making the measurement.

3.2.1. Preparing the a na lyzer for working mode

3.2.1.1. Put the analyzer on the working place, providing good ventilation and

not in the vicinity of heat providing devices or sources. The temperature in the premises has to be in the boundaries 10-30

3.2.1.2. Check if the power switch is in "0" position and that the outlet voltage complies with the voltage indicated on the rating plate of the analyzer. Connect the switching adapter.

3.2.1.3. Switch on the “POWER” button, which starts the identification procedure. For a short time the display shows the number of the software versions, for example:

Milkanalyzer xxx LCD vers xx MA vers yy MA ser. N. xxxx

where:

Milkanalyzer xxx is the time for measurement. LCD vers XX is display control software version. MA vers YY is the motherboard software version. MA ser. N. xxxx is the serial number – written on the rear panel of the

analyzer.

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Ultrasonic milk analyser

If in the process of exploitation there is a need to ask a question the company-producer, you have to send the data, written on the display during the above described initialization procedure.

3.2.1.4.Till the analyzer is prepared for work (at about 5 minutes) the following message is written on the display: “Getting ready”. Above pointed time is in dependence of the environmental temperature and increases with decreasing the temperature.

3.2.1.5. When the device is ready for work the display shows: “Ready to start”.

The analyzer is ready to make analysis in mode 1 (normally Cow)

3.2.1.6. If you want to pass to another mode press the button Enter and hold it pressed. The following message appears on the display:

Release button to

start menu

Release the button Enter. The display shows the possible working modes:

Milk selector Cal1 – Cow Cal2 – Sheep Cal3 – UHT

-----------------------------Cleaning Final cleaning

Using “up”▲and ”down”▼buttons, choose the working mode and press Enter in order to start it.

3.2.2. Making analysis

To start measurement:

- pour the preliminary prepared sample in the sample holder of the analyzer;

- put the sample holder in the recess of the analyzer;

- press the button Enter.

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Ultrasonic milk analyser

The analyzer sucks the milk, makes the measurement and returns the milk in the waste liquid reservoir. During the measurement the temperature of the sample is shown on the display. Ignore the results received immediately after switching on the analyzer and after measuring distilled water. Make a second measurement with new portion of the same sample.

3.2.3. Displaying the r e s ult s

3.2.3.1. When the measurement is finished, the sample returns in the

sample-holder and the display shows the results. For example:

Results: F=ff.ff S=ss.ss D=dd.dd P=pp.pp L=ll.ll W=ww.ww

Where:

F= ff.ff - measured FAT in percentage; S= ss.ss - measured SNF in percentage; D= dd.dd - measured density in percentage; P= pp.pp - measured protein in percentage; L= ll.ll - measured lactose in percentage; W= ww.ww - measured sample’s added water in percentage;

By pressing the button” Down” ▼ the display shows the second page, containing the results:

Page 2 Results: T=tt.tC pH=pp.pp FP=-0.fff s=0.sss A=aa.aa

Where:

tt.tC - sample’s temperature; pp.pp - sample’s pH result – if there is a pH probe connected;

-0.fff - measured sample’s freezing point;

0.sss - measured salts values; aa.aa - measured total solids

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Ultrasonic milk analyser

By pressing the button”Up” ▲ display shows the third page with results:

Page 3 Results:

L=l.ll

Where: L= ll.ll - measured Lactose in %;

By pressing the buttons “up”▲ and ”down”▼, the operator has the possibility to pass from one page result to another.

If the device has an embedded option “Conductivity” and "conductivity measurement" started, the result is shown on the display, showing the basic results replacing lactose results in the following way: C=xx.xx In this case the Lactose result is shown on a new page - Page 3 Results. xx.xx is the measured milk sample’s conductivity in [mS/cm]. If the results are outside the limits for this type of sample (see table from the Appendix Conductivity measurement), the cursor flashes after the letter С, reminding that the sample is not correct. On the printout it is printed as !!!. If the conductiity value is outside measuring range (2-14 mS/cm), the following message appears on the display: C=OutRg (Out of Range), and on the printout there isn’t any line with conductivity value.

3.2.3.2. Write down the results in the form. The results remain on the display till a new measurement is started. If the analyzer is connected to a computer or a printer, it sends the data to the computer or prints them.

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Ultrasonic milk analyser

Time: xx:xx:xx

Conduct.(mS/sm)…………..xx.xx

Fig. 6 Printing the results

For more information for the printer see 8.2. Working with Printer.

SCHEME:

PRINTOUT OF THE RESULTS-EXAMPLE

Date: xx:xx:xxxx Milk analyser 60 SN: xxxxx Calibration 1 – UHT

Results: Temp.Sample………………..˚C Fat………………………..xx.xx% SNF………………………xx.xx% Density…………………….xx.xx Protein…………………...xx.xx% Lactose…………………..xx.xx% Added water…………….xx.xx% pH……………………………..xx Salts…………………….xx.xx% Freezing point…………-x.xxx˚C Deliverer No……………….xxxx Liters…………………………xx.x

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Ultrasonic milk analyser

connected towards

4. CLEANING THE ANALYZER

This procedure prevents gathering milk fat residues and milk stone on the sensor. The milk stone consists of milk solids, calcium, iron, sulphates, magnesium, etc. All these substances form layer on the pipe and sensor’s walls, which leads to deviations in the measurement results and blocking up the piping.

The company-producer recommends usage of the chemicals, supplied with the analyser – alkaline and acidic (Lactodaily and Lactoweekly). You may order them separately or together with the analyser. Try to use only these chemicals for cleaning the analyser.

In case you missed to order these chemicals, the alternative is to use alkaline and acidic cleaning solutions for dairy equipment by one the companies, producing such chemi ca l s , as for example:

http://www.diversey.com http://www.ecolab.com http://www.calvatis.com

4.1. Automatic cleaning the analyzer

Analyzer's contamination as a result of the irregular cleaning is the basic reason for inexactness during measurement. In order to be avoid this, in the milk analyzers with peristaltic pump is embedded automatic cleaning. For this purpose the analyzer has to be prepared on the following way:

Fig.7 Additional pipe to the input pipe for automatic cleaning

94 - additional pipe, input pipe

Please, pay attention to the additional pipe, connected towards the input pipe. It has to be long enough to suck all the content in the glass, but to be bent in order not to impede the pump function.

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Ultrasonic milk analyser

Pay attention to the

ith the cleaning solution has to be well dipped in the cleaning solution while the pipe in the reservoir with the already used samples and cleaning solution MUST NOT be

Pay attention to the level of the cleaning solution in the reservoir. Add solution when

used samples and used

The reservoir with the cleaning solution have to be connected towards the analyser and outgoing pipe towards reservoir for collecting the measured samples and used cleaning solution, as is shown on the scheme:

Fig.8 Connecting the re s er voi rs towards the milk analyzer

pipes in both reservoirs. The pipe in the reservoir w

dipped in the liquid.

the level is below 2/3! 1 - cleaning solution input

2 cleaning solution output

Description of the cleaning procedures There are two ways of cleaning the analyzer embedded in it – current and end (final) cleaning.

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Ultrasonic milk analyser

4.1.1. Current cleaning.

4.1.1.1. Auto matic start

The current cleaning is made with 3% alkaline solution (for working solution preparation see 4.2.1.), with which the reservoir for the cleaning solution is filled in. It is automatically started, without operator's interference after the set time intevals elapse

1. 55 min. after switching on the power supply of the analyser, but idle* work;

2. 15 min. after the last measurement of real milk sample.

*Idle Mode is that part of the standard working mode, when the analyser is not making measurements. There’s embedded in the analyser system for measurement of the idle time. The idle time is measured starting from the last action of the operator. In dependence of it (what the operator last did), are taken decisions regarding the cleaning.

There are 2 options: Option A: If the analyser:

1. Was only switched on but was not started in measurement mode,

2. Or the last action was cleaning,

3. Or the last action was measuring sample with very low Fat (similar to water)

Then the automatic cleaning is started after 55 min. Option B: If the last thing done with the analyser was measurement of normal

milk sample, the automatic cleaning is started after 15 min.

The display shows the following message and a sound signal is emitted:

Auto clean

started!

Put empty glass

After this the cleaning i s started. The display shows:

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Ultrasonic milk analyser

Cow

Cleaning

Please wait

If there is a glass with sample it is completely emptied and then the analyser automatically fulfills procedure for sucking the cleaning solution and c rinsing the analyzer's inner system. In order the input metal pipe to be cleaned out for a short time a cleaning solution is pumped out for a short time in the already empty glass. It is filled to the middle and then is sucked back and poured in the reservoir with the used liquids. If there wasn't glass before the start of the automatic cleaning and if you do not replace it or put an empty glass then the cleaning solution will be poured in front of the device.

After the cleaning is finished the displays shows the following:

End of cleaning

After 2 seconds the display shows:

Analyzer ready

Then the analyser is ready for normal measurement.

4.1.1.2. Manual start The current cleaning may be completed by manual start of the menu

Cleaning. It is used before starting the menu Final Clean. It serves for cleaning the fats from the measuring tract with alkaline cleaning solution. It is started using the menu for choosing the working mode of the analyzer. After the measurement is completes, by continuous pressing the button Enter, the possible analyser operation modes are shown on the display.

Sheep UHT Cleaning Final Clean

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Ultrasonic milk analyser

By choosing Cleaning the current cleaning is started. The display shows the following:

Auto clean

started!

Put empty glass

In this way the current cleaning is started. The procedure and operator’s actions are described above.

Do not switch off the device at the end of the working day before the automatic cleaning procedure is completed. If it is not automatically cleaned and there is not a possibility to wait starting the automatic cleaning, then start manually the cleaning procedure with alkaline cleaning solution and if it is necessary with acidic cleaning solution as it is described below.

4.1.2. End (final) cleaning.

4.1.2.1. Final cleaning. It is done with 3% acidic cleaning detergent (for working solution preparation see 4.2.2.). It is done daily. Serves for cleaning the protein deposits from the measuring system of the analyser, which were not removed during work with the alkaline cleaning solution and removing milk stone layers.

Do not use chemicals, which are not intended for milking equipment and vessels in dairy industry. Pay particular attention to the acidic cleaning solution concentration. The higher concentration may damage the measuring sensor.

Always before the final acidic cleaning rinse the device with alkaline cleaning solution by manual starting if it was not already automatically cleaned. It is necessary to be done in order to remove the milk residues which could react with the acidic cleaning solution.

Do not forget to rinse with clean water!

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Ultrasonic milk analyser

It is started using the working modes menu. After the measurement is completed, by pressing and holding pressed the button Enter, the display shows the possible working modes of the analyser.

Cow

Sheep

UHT

Cleaning

Final Clean

1. Choose Final Clean. After choosing the final cleaning, the following

message appears on the display:

Put filled with

Water glass

and press Enter

to Continue

2. Put a glass filled with water.

3. The hose from the Waste pipe has to be placed in the vessel for waste liquids.

4. Press the button Enter in order to continue the procedure. Then the following message appears on the display:

Cleaning

Please wait

Do not miss to clean with water because the residues from the alkaline cleaning solution could react with the acidic solution, which will lead to gas and sediment formation.

After rinsing with water

, the display shows the following:

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Ultrasonic milk analyser



Cleaning: X

Glass Alcal Detrg

Waste pipe

Glass

press Enter

5. Place glass filled with alkaline cleaning solution.

6. The pipe, coming from the orifice with inscription Waste Pipe has to be placed in the glass.

Fig 9. Cleaning

7. Pressing button Enter starts the procedure for cleaning with alkaline solution. The following appears on the display:

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Ultrasonic milk analyser

Glass Acid Detrg

End of Cleaning

Cleaning: X

Where, X is changing number showing number of cycles done by the pump.

8. After the cleaning procedure is finished, the following message appears, reminding the analyzer needs rinsing.

9. Rinsing procedure is executed, described in p. 2. After it is finished, the display shows:

Waste pipe  Glass press Enter

10. Place glass filled with acidic cleaning solution.

11. The pipe, coming from the orifice with inscriptionс Waste Pipe has to be placed in the glass.

12. Pressing button Enter starts the procedure for cleaning with acidic solution. The following appears on the display:

Where, X is changing number showing number of cycles done by the pump.

13. After the c leaning procedure is finished, the following message appears, reminding the analyzer needs rinsing.

14. Rinsing procedure is executed, described in p. 2. After it is finished, the display shows:

Ready to Start

15. Procedure Final Clean is finished.

3. Pour warm alkaline solution in the glass and press the button Enter, in order to continue the cleaning. Then the following message appears on the display:

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Ultrasonic milk analyser

Cleaning

Please wait

Follow repeatedly sucking/pouring out the cleaning solution and heating it up. After the cleaning is finished, the cleaning solution is emitted in the reservoir with the waste liquids.

For maximum cleaning effect it is recommended the cleaning solution to be preliminary heated up to 40-50 degrees centigrade.

Follows rinsing with water:

4. Put a glass with water for rinsing the device

Put filled with

Water glass

and press Enter

to Continue

After rinsing the display shows the following:

End of cleaning

After 2 seconds the following appears on the display:

Analyser ready

After this the analyser is ready for normal measurement or to be switched off from the power supply.

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Ultrasonic milk analyser

4.2. Preparation of cleaning s olution

For a single cleaning cycle you need only 25 ml cleaning solution. We recommend you to prepare working solutions of cleaning chemicals, enough for normal work for 1 week, because, during their stay unused, the working solutions loose their strength and also is difficult to store them.

Preparation of 3 % alkaline solution of Lactodaily for circulation cleaning in the milk analyser:

1. Take the package concentrated chemical Lactodaily

2. In appropriate vessel (for example bucket) pour 1 l water.

3. Add the chemical and then again water up to 3 l.

Then follow the instruction for milk analyser cleaning.

4.2.2. Preparation of acidic cleaning solution

Preparation of 3 % acidic solution of Lactoweekly for circulation cleaning in the milk analyser:

1. Take the package concentrated chemical Lactoweekly

2. In appropriate vessel (for example bucket) pour 1 l water.

3. Add the chemical and then again water up to 3 l.

Then follow the instruction for milk analyser cleaning.

Fig. 10 Labels for acidic cleaning chemical Lactoweekly and alkaline cleaning chemical Lactodaily

The following procedure is executed:

1. Rinsing the milk residues: Fill in the glass with water. Put it in the recess of the analyser and start command Cleaning from the main menu. After finishing it pour out the contaminated water.

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+ 80 hidden pages

Milkotronic LACTOSCAN SA Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

2. TECHNICAL PARAMETERS

2.1. Working modes characteristics:

2.1.1. Measurement mode milk / dairy product – first type

2.1.2. Measurement mode milk / dairy product – second type

2.1.3. Measurement mode UHT milk / dairy product – third type

2.1.4. Cleaning

2.2. Measuring range:

2.3. Accuracy:

2.4 Correct ambient condit ions:

2.5. Dimensions: ……………… ……………..240/220/100 mm, mass 3,0 kg

2.6. Continuous working ti m e : ………………………………………non-stop

2.7 Milk sample volume per one measurement: ………..15 cm3 (= 25 ml)

3. QUALIFICATION OF RAW MILK, THERMALLY TREATED MILK, OTHER DAIRY PRODUCTS AND DERIVATIVES

3.1. Taking samples and preparation for analysis

3.2. Making the measurement.

3.2.1. Preparing the a na lyzer for working mode

3.2.2. Making analysis

3.2.3. Displaying the r e s ult s

4. CLEANING THE ANALYZER

4.1. Automatic cleaning the analyzer

4.1.1. Current cleaning.

4.1.2. End (final) cleaning.

4.2. Preparation of cleaning s olution

4.2.2. Preparation of acidic cleaning solution