Milkotronic LACTOSCAN SA Operation Manual Download Page 99

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Ultrasonic milk analyser

Operation manual

11.04.19

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11. pH U Display

Serves for allowing/forbidding the value of the pH probe voltage during pH
parameter measuring. After starting it the display shows:

PHUDisplay

XXX

No OK Yes

Where

XXX

is the current state of the displaying mode. By pressing the

buttons below the inscriptions it could be changed, as

Yes

– means that

during pH measuring the voltage of the pH probe will be shown.
If

is chosen, it will not be shown. It refers to both of the measuring modes.

12. pH test

serves for testing the measuring system in production mode.

Summary of Contents for LACTOSCAN SA

Page 1: ...Ultrasonic milk analyser Operation manual 11 04 19 1 110 Milkotronic Ltd LACTOSCAN SA MILK ANALYZER LCD display 4 lines x 16 characters Operation manual...

Page 2: ...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 t...

Page 3: ...damaged 4 Connect to the electrical network in such a way that the power cable to stay away from the side for accessing the device and not to be stepped on 5 Every time before cleaning the device swit...

Page 4: ...n the table below the milk analyzer spares and accessories which are delivered on customers request are listed Description a included in the set b not included in the set may be additionally bought It...

Page 5: ...al 11 04 19 5 110 18 12 V Serial Printer Power Supply Cable LSSA018 1 19 RS232 Interface Cable Milk Analyser Serial Printer LSSA019 1 20 Carrying case LSSA020 1 21 Plug type 1 1 22 Spare O ring for th...

Page 6: ...k analyzer is to make quick analysis of milk on fat FAT non fat solids SNF proteins lactose and water content percentages temperature o pH freezing point salts total solids conductivity as well as den...

Page 7: ...g 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...

Page 8: ...erstood as 1027 3 kg m3 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 m3 The abbreviated form of the density is us...

Page 9: ...ding 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 var...

Page 10: ...nic milk analyser Operation manual 11 04 19 10 110 Fig 1 Front panel 1 pH probe option 10 Sample holder 2 printer option 11 Input pipe 3 keypad option 12 Hanger 4 Display 13 USB flash drive slot 5 9 B...

Page 11: ...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 ad...

Page 12: ...Ultrasonic milk analyser Operation manual 11 04 19 12 110 Fig 3 Principle working scheme...

Page 13: ...Ultrasonic milk analyser Operation manual 11 04 19 13 110 Fig 4 Connecting peripheral devices...

Page 14: ...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 w...

Page 15: ...g 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 fo...

Page 16: ...r 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 30o C 3 2 1 2 Check if the...

Page 17: ...n 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 hol...

Page 18: ...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...

Page 19: ...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 mea...

Page 20: ...2 Working with Printer SCHEME PRINTOUT OF THE RESULTS EXAMPLE Time xx xx xx 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...

Page 21: ...hese chemicals the alternative is to use alkaline and acidic cleaning solutions for dairy equipment by one the companies producing such chemicals as for example http www diversey com http www ecolab c...

Page 22: ...g procedures There are two ways of cleaning the analyzer embedded in it current and end final cleaning Pay attention to the pipes in both reservoirs The pipe in the reservoir with the cleaning solutio...

Page 23: ...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 dec...

Page 24: ...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 Afte...

Page 25: ...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 measuri...

Page 26: ...age 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 Pre...

Page 27: ...s 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...

Page 28: ...ss 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 th...

Page 29: ...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 wi...

Page 30: ...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...

Page 31: ...ur out the contaminated water Now the device is ready for work Please pay attention that when the analysers gives a signal for need of cleaning 15 min after the last measurement of real milk samples o...

Page 32: ...sonic milk analyser Operation manual 11 04 19 32 110 4 3 Working with the peristaltic pumps There are two peristaltic pumps in the analyser 1 for the sample and 1 for the cleaning Fig 11 Peristaltic p...

Page 33: ...Ultrasonic milk analyser Operation manual 11 04 19 33 110 Fig 12 Peristaltic pump SL 16...

Page 34: ...ase check the following The sample is prepared according the instructions and there aren t air bubbles in it There is a real suction of the sample after starting measurement i e it is obvious that the...

Page 35: ...on the accuracy of the milk analyzer making corrections and recalibration 6 2 Determination the type of the discrepancy 6 2 1 Making measurements Make measurements with different samples not less than...

Page 36: ...0 3 00 3 80 4 60 5 20 when measured with the analyser 2 02 2 93 3 76 4 75 5 44 Difference 0 18 0 07 0 04 0 15 0 24 Conclusion It is obvious that the difference is variable value and recalibration have...

Page 37: ...appears on the display Release button to start setup After releasing the button on the display is shown Setup Menu followed by possible to be entered by the operator menus Special modes Corrections S...

Page 38: ...in the above pointed limits Leaving this mode means saving the correction value and activating it 6 3 3 4 Making verification After the corrections are made put the milk analyser in working mode and m...

Page 39: ...ng the analyser in mode Recalibrate 6 4 1 1 Press the button Enter and without releasing it switch on the power supply of the device wait for the starting identification messages and release the butto...

Page 40: ...parate sample parameters The following menu is displayed Cal1 Cow High FAT f ff Edit OK Next In this display the results received by using the corresponding reference methods from Appendix Methods for...

Page 41: ...dit OK Next If you miss to enter some of the parameters of milk the following warning message will appear You Must Enter Values 00 00 Try Again Then you must press the button Enter and enter the misse...

Page 42: ...boundaries 15 25 Before each milk measurement stir 2 3 times the milk sample by pouring it from one vessel to another The needed quantity is poured in the sample holder and it is put in the recess of...

Page 43: ...ement After the 5th measurement appears the menu Recalibrated Power Off On This means that the calibration was completed successfully and the analyzer is recalibrated for cow milk marked as Cal Cow Sw...

Page 44: ...rated For checking use the third sample with medium FAT content 3 Measure the milk 5 times in the mode you ve calibrated it In case that the device is not connected towards printer write down the resu...

Page 45: ...tarting identification messages and to release the button after the following message appears on the display Release button to start setup After releasing the button on the display is shown MA Setup F...

Page 46: ...measurement in this mode the operator has to put a sample holder containing milk sample in the recess of the analyzer and to press the button Enter 7 2 1 2 Cycle mode Fast cycle mode Mode Cycle serve...

Page 47: ...the old one factory calibration This is necessary in case that you ve calibrated the device for cow milk but after that the device is not measuring correctly and you decide to restore the factory cal...

Page 48: ...ings Page2 Set Calibr Name Select High Fat HFSpeed for Cal Result Precision PCB Main Identi Larg Res En Dis Exit Now there is a possibility one of the following options to be set 7 2 3 4 1 Larg Res En...

Page 49: ...tion speed during calibration Please pay attention to the fact that switching off the power supply cancels this command action 7 2 3 4 4 Reslt Precision Serves for setting the precision of the measure...

Page 50: ...names With button Exit to leave the menu With button Edit to edit the new calibration name If a name from the preliminary given names list is chosen the display shows Cal1 Sheep UHT Exit Yes Next Ther...

Page 51: ...y edited calibration name and to save it in the device The program returns to the beginning of the menu for setting calibration names 7 2 3 5 Set Base FrPnt Through this menu you have the possibility...

Page 52: ...4 2 Ultrasound Test for the ultrasonic system Used in production conditions 7 2 4 3 Set Amplitude Serves for ultrasound amplitude adjustment It is used under production conditions or by the customer a...

Page 53: ...zer Setup Special modes Calibration Cycle Reports Shut Down Corrections Calibration 1 Fat SNF Density Lactose Salts Proteins Water Calibration 2 Fat SNF Density Lactose Salts Proteins Water Calibratio...

Page 54: ...Calibr 3 Rest Calibr 1 Rest Calibr 2 Rest Calibr 3 Fan Temp Offs Settings Page2 Final clean cnt Auto Print Res Larg Res En Dis Set Calibr Name Option Select Sel Pump Speed Speed for Cal 1 Speed for C...

Page 55: ...Prn pH Co Meter pH Calibration pH Measuring pH En Disable pH U Display pH Test U V Co Meter Calibr Co Meter Test Co Meter En Dis Accessories Weight scale Raw Test Calibration Measure On Line En Dis B...

Page 56: ...lk from 0 1 up to 9999 9 liters with accuracy up to 0 1 l Entering these data is done before starting the measurement For that purpose 1 Press the button Enter on the keyboard and the display will sho...

Page 57: ...ing Loading way easy Cutting way divulsion dentiform Printer performance Print method Direct thermal print and auto paper feed Printing density 384 dots line 8 dots mm Printing width 48 mm Max Printer...

Page 58: ...er of paper roll 30mm Physics Specification Environment adaptability 0 55 20 55 10 90 RH Storage temperature 25 70 10 90 RH Dimension W H D mm 103mm 57mm 57mm Fig 12 Printer control panel 1 Printout 2...

Page 59: ...tched on with switching on the device After finishing the measuring procedure the results are automatically printed out If there is a need of repeated printing of the same results the operator has to...

Page 60: ...towards it Connect it via cables delivered by the company producer If the printer is connected directly to the electrical network then the analyser and the printer should be connected to one and the s...

Page 61: ...ttings Page2 Option Select SelPumpSpeed HFSpeed for Cal By which the device passes in a mode of measuring high fat samples This calibration mode is active till the power supply of the device is switch...

Page 62: ...rical network the analyzer automatically starts working with power supply from the battery Possible working modes with battery 1 The analyser is powered by the battery works normally the display shows...

Page 63: ...OFF Line measuring mode In case there is discrepancy noticed you need to make scales calibration as is described below 9 7 2 Weighting delivered milk The procedure is analogous to work when entering...

Page 64: ...lue on the display across Net is changing The operator has to wait the scales to be set at rest and press the button The display shows the following Net xx xxx kg Tare yy yyy kg Totl zz zzz kg 0 Tare...

Page 65: ...dure is repeated for every deliverer When the milk collecting vessel is full pour its content in the cooling tank Place it back on the scales and press again the button for new tare calculation 9 7 3...

Page 66: ...from the scales to the analyser after setting the deliverer s number If option Enable is chosen follow the way of work described above If not then the operator has the possibility to enter manually l...

Page 67: ...RS 232 towards IBM PC On the basis of Fat and SNF and liters calculated from kilograms received from Weight Scale or entered directly delivered the system calculates Rate Fat FatCo SNF SNFCo 1 Amount...

Page 68: ...t Coeffs After the working shift is over the operator has the possibility to print out Short or Large Shift Report User has possibilities to reject selected deliverer number from report Reject Deliv N...

Page 69: ...ements to be stored Reject Deliv N measurement for selected Deliverer Number are excluded from reports Reject meas for Del N Del last Meas deletes the archive from the last measurement If this command...

Page 70: ...BM PC LPT OK IBM PC Lines On Page determines the number of lines in one page for Large Report Lines on Page 64 OK Empty Lines Bot determines the number of empty lines at the bottom of page Empty Lines...

Page 71: ...ements the same after real measurement Print meas for Del N The operator has to enter the number of the deliverer whose results want to be printed again If there are no results from a deliverer with s...

Page 72: ...35 Average SNF 4 76 Large Report makes detailed report for each sample separately for the chosen calibration Rep for Calibr on the chosen device Sel Out Device Report can be send to LPT or IBM PC via...

Page 73: ...elector user selects which name Shift 1 or 2 enter from IBM PC will be printed in the header of each list from LPT report Using the program LS SetReports exe see its description the operator has the p...

Page 74: ...he advantage of this option is that on the print out with the measurement results are shown also the exact time when the measurement is made for example The embedded clock is controlled by the device...

Page 75: ...he Led stop blinking and then remove the flash drive from the analyser Data collected from measurements are saved in MS Excel file The name of the file is formed by the date when the measurement is ma...

Page 76: ...rms of storage and processing of the measurement results The Flash Drive is used as memory for storing the results Having in mind the memory volume necessary for storing the results from one measureme...

Page 77: ...Flash Drive On practice this operation is invisible for the operator does not take additional time and the operator has the possibility to start servicing the next deliverer After arriving in the bas...

Page 78: ...of the analyzed components Methods of milk samples preparation for calibration For milk sample with middle value of the analysed components we recommend to use milk taken from not less than 10 animal...

Page 79: ...e sample from one vessel to another in order to distribute the milk components evenly paying attention not to form foam in the sample When the samples are stored for a longer period it is recommended...

Page 80: ...ted There are several formulas with different applicability When the Total Solids and fat are known SNF is calculated by subtracting the fat percentage from the Total solids SNF Total Solids F Where T...

Page 81: ...alts SNF 0 083 Where SNF solids non fat content in percentages 0 083 constant coefficient B for sheep milk Salts SNF 0 075 Where SNF solids non fat content n percentages 0 075 constant coefficient Thi...

Page 82: ...milk analyser Operation manual 11 04 19 82 110 Where SNF solids non fat content in percentages 0 475 constant coefficient This is an actual coefficient for sheep breeds on the territory of the Balkan...

Page 83: ...he average reading for your region is called basic freezing point The freezing point of milk is a physiological constant This does not mean that it will not vary In fact feed breed season time of lact...

Page 84: ...alc Base FrPo FrPo FrPo AddedWater Where FrPointBase is the basic freezing point FrPointCalc is measured freezing point Note If the freezing point is not correctly determined the result for the added...

Page 85: ...enter correct basic freezing point in the device The device s results for added water may give information about doubt of added water in the milk and the exact value of this added water may be determi...

Page 86: ...p containing a suitable storage solution covers the glass membrane 2 2 Electrode care Electrode maintenance pH Electrodes are susceptible to dirt and contamination and need to be clean regularly depen...

Page 87: ...ort The reference electrolyte used should be 3M Mol KCl Replace the rubber sleeve 2 7 Re use the electrode Rinse the liquid junction with de ionized water If these steps fail to restore normal electro...

Page 88: ...procedure outlined below 2 10 Rejuvenation Procedure Dip and stir the electrode in freon or alcohol for 5 minutes Leave the electrode in tap water for 15 minutes Dip and stir the electrode in concent...

Page 89: ...20 C 4 00 30 C 4 00 40 C 4 00 50 C 4 05 4 pH Electrode Calibration pH Electrodes are like batteries they run down with time and use As an electrode ages its glass changes resistance For this reason el...

Page 90: ...ambient calibration temperature and the more the pH departs from 7 the greater is the pH error pH temperature error table C pH 2 3 4 5 6 7 8 9 10 11 12 5 30 24 18 12 06 0 06 12 18 24 30 15 15 12 09 06...

Page 91: ...e pH electrode in solutions of fluoride ion at low pH This will etch the glass membrane Sulphide vapors can permeate the electrode wick and contaminate the reference element Minimize contact in such e...

Page 92: ...13 Removing the stopper 3 Carefully place the pH probe paying attention not to remove the sealing O ring 4 Place the probe with the nut in the hole and tighten it It is very important to close the nut...

Page 93: ...Ultrasonic milk analyser Operation manual 11 04 19 93 110 Fig 14 Placing the probe...

Page 94: ...itional feature of the analyser and is optional Remove the protective rubber cap of the pH electrode Take care to handle it appropriate in order not to be damaged Use de ionized or distilled water to...

Page 95: ...e sensor and then the power supply of the device Having in mind the characteristics of the process of pH measuring it is necessary to dip the probe in the sample and then to press the button Enter Aft...

Page 96: ...as Low buffer for example 3 00 pH and High buffer for example 7 00 pH Follow the procedure Please use this procedure only if you have enough calibration buffers as they could not be used more after th...

Page 97: ...ws pH Calibr Put Izopot buff Buf xx xxx V x xxxV Set Where x xxxxV is the measured in the probe voltage 5 Press the button Set when the readings stop moving 6 Repeat the procedure with Next buffer and...

Page 98: ...and on the display the following is shown pH measuring x xxxV y yy pH Exit Where x xxx measured by the probe voltage y yyy measured probe s pH By pressing the button Exit the operator may exit the pro...

Page 99: ...e display shows PHUDisplay XXX No OK Yes Where XXX is the current state of the displaying mode By pressing the buttons below the inscriptions it could be changed as Yes means that during pH measuring...

Page 100: ...salts Increase the ion s concentration Milk conductivity increases Increase the ion s concentration Milk conductivity increases Often the milk is falsified by adding salt towards milk with good charac...

Page 101: ...ystem calibration Clean the analyzer before starting conductivity measurement see p 4 1 You need a standard buffer with conductivity 5 02 mS cm you may order it for delivery together with the analyser...

Page 102: ...t on again the analyser has to be cleaned again with water which ends the calibration of the conductivity measurement system calibration Note Another possibility for calibration of analyzer s conducti...

Page 103: ...ed below the By using buttons Up Down the operator has the possibility to change the value number By pressing the button Enter the operator confirms the chosen value and moves to the next position for...

Page 104: ...th 1 l volume paying attention all its content to be emptied For standard buffer 5 02 ms 3 056 5 Add 600 700 ml distilled water which was preliminarily deaerated in vacuum dryer or boiled and then coo...

Page 105: ...ING THE MEASUREMENT 16 3 2 1 PREPARING THE ANALYZER FOR WORKING MODE 16 3 2 2 MAKING ANALYSIS 17 3 2 3 DISPLAYING THE RESULTS 18 4 CLEANING THE ANALYZER 21 4 1 AUTOMATIC CLEANING THE ANALYZER 21 4 1 1...

Page 106: ...HE ANALYSER 60 9 1 CONNECTING TO 12 V DC POWER SUPPLY 60 9 2 CONNECTING TO IBM PC 60 9 3 CONNECTING ADDITIONAL SERIAL PRINTER OPTION 60 9 4 CONNECTING MATRIX PRINTER OPTION 60 9 5 MEASURING HIGH FAT S...

Page 107: ...LECTROLYTE PREPARATION 87 2 7 RE USE THE ELECTRODE 87 2 8 ELECTRODE CLEANING 87 2 9 ELECTRODE ACTIVATION 88 2 10 REJUVENATION PROCEDURE 88 2 11 ELECTRODE LIFESPAN 88 3 BUFFER SOLUTIONS 89 4 PH ELECTRO...

Page 108: ...Ultrasonic milk analyser Operation manual 11 04 19 108 110 7 CONDUCTIVITY CALIBRATION BUFFER PREPARATION 103 CONTENTS 105...

Page 109: ...CARD LACTOSCAN SA Automatic model Guarantee period is 1 one year after purchasing date Improper handling transport and storage will invalidate the guarantee Guarantee is void if warranty labels are r...

Page 110: ...RD Purchaser Service report Service entry date Damage Delivery date Signature Covers Lactoscan SA Last edited 29 03 2019 HEAD OFFICE 4 Narodni Buditeli Str 8900 Nova Zagora BULGARIA Phone Fax 359 457...

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