User manual EKOMILK ULTRA PRO Ultrasonic Milk Analyser
Contents
1. Remove the protective rubber sleeve to expose the filling port of the electrode Remove the old reference electrolyte with a syringe b Hill the new reference electrolyte New electrolyte preparation Open the small container with KCI Add in de ionized water until it reaches the level of 20 ml Close the container and shake it to dissolve the KCl 20 CS JM KC 1 Add in fresh electrolyte until it reaches the level of the refilling port The reference electrolyte used should be 3M Mol KCI Replace the rubber sleeve f KCI bevel c Re use the electrode Rinse the liquid junction with de ionized water Note If these steps fail to restore normal electrode response you may attempt to rejuvenate it See Electrode Rejuvenation 2 6 Electrode cleaning Electrodes which are mechanically intact can often be restored to normal performance by one or combination of the following procedures a Salt deposits e Dissolve the deposit by immersing the electrode in tap water for ten to fifteen re 4 minutes Then thoroughly rinse with de ionized water ee va b Oil Grease Films Wash electrode pH bulb in a little detergent and water Rinse electrode tip with de ionized water i c Clogged Reference Junction pH electrodes have junction which allows the internal fill solution of the HE measuring electrode to leak out into the solution being measured The junction can become clogged a2. MILK CONDUCTIVITY ADDITIONAL INFORMATION Conductivity or Electrolytic Conductivity is defined as the ability of a substance to conduct electrical current It is the reciprocal of the resistivity In a healthy animal the mean value of electric conductivity is cow milk between 4 to 6 mS cm 18 C sheep milk between 3 to 5 mS cm 18 C e buffalo between 2 5 to 5 mS cm 18 C These values depend on the geographical region the race and on other factors Milk conductivity changes on the concentration of ions in the milk e Added salts increase the ion s concentration Milk conductivity increases e Added water sugar proteins insoluble solids decrease the ion s concentration Milk conductivity decreases e Significantly extreme value 6 5 13 00 mS cm 18 C should indicate the development of mastitis Infections damage the tissue of the udder This allows sodium and chlorine ions from the blood to be released into the milk The concentration of ions in the milk is thereby raised and it can more easily conduct an electrical current the conductivity of the milk increases e Milk conductivity can be used as a test of grade of water evaporation in production of condense milk e Milk conductivity change notifies of powder dry milk solution rate ERROR S LIST eee ERROR BLUE PROBLEM amp REMEDY MASSAGE CAUSES 1 MOTOR ERROR MOTOR DAMAGE Replace the out of order Pump with a new one see Assemblies Repl
3. 2 2 Electrode care amp Electrode maintenance pH Electrodes are susceptible to dirt and contamination and need to be clean regularly depending on the extent and condition of use At no time should one touch or rub the glass bulb as this causes the build up of electrostatic charge 2 3 Storage The best results always keep the pH bulb wet An optimal storage solution for combination electrode is pH 4 buffer cleat not pink with 225 grams of KCI per liter Table salt NaCl can be used if KCl is not really available Other pH buffers or tap water are also acceptable storage media but avoid storage in de ionized water The protective rubber cap filled with the buffer solution provides ideal storage for long periods 2 4 After Use After measurement is complete follow the sequence elaborated below for storage a Wash the electrode and reference junction in de ionized water Fr V d ELEA 7 e f e We 9 ri d b Close the refilling hole by returning its rubber sleeve or stopper cap Necessary for only refillable electrode ff Rubber Stapper c Store the electrode as mentioned above see section Storage el 2 5 Electrolyte Replacement for refillable electrode only The reference electrolyte needs to be refilled when the electrode has been used for an external period or when the internal electrolyte has dried up To accomplish this follow the procedure detailed below a Remove the protective rubber cap or sleeve
4. b Leave the electrode in tap water for 15 minutes c Dip and stir the electrode in concentrated acid HCI H2SO4 for 5 minutes d Repeat Step b leave the electrode in tap water for 15 minutes e Dip and stir in strong base NaOH for 5 minutes Nir gt f Repeat Step b leave the electrode in tap water for 15 minutes nat d lx g Test with standard calibration solution Finally test with standard calibration buffer solution to see if the electrode yields acceptable results You may repeat steps c to P again for better response maximum 3 times If the response i A does not improve then the electrode has completed its useful life t zt Replace with a new electrode Leave for 18 minutes Tap Water 3 Electrode Lifespan pH electrodes have a finite lifespan due to their inherent properties How long a pH electrode will last will depend on how it is cared and the solution it is used to measure Even if an electrode is not used it still ages Electrode demise can usually be characterized by a sluggish response erratic readings or a reading which will not change When this occurs an electrode can no longer be calibrated pH electrodes are fragile and have a limited lifespan How long an electrode will last is determined by how well the is maintained and the pH application The harsher the system the shorter the lifespan For this reason it is always a good idea to have a back up electrode on hand to a
5. Power Consumption 30W max Mechanical Parameters Dimensions WxDxH 95 x 300 x 250 mm Weight 3 5 kg Measuring Parameters Fatness from 0 5 to 9 with accuracy 0 1 Solids non fat SNF from 6 to 12 with accuracy 0 296 Milk density from 1 0260 g cm to 1 0330 g cm 0 0005 g cm Protein from 2 to 6 with accuracy 0 2 Added water to milk from 0 to 60 with accuracy 5 pH from 0 00 to 14 pH with accuracy 0 02 Conductivity from 2 to 20 mS cm 0 5 mS cm 18 C Temperature from 0 to 50 C with accuracy 0 1 C Measuring cycle 30 sec These options are additional If someone is not installed the inscription NA Not available will appear on the display instead of result CONTROLS ON THE FRONT AND REAR PANELS EKOMILK MILK ANALYZER u I MILKANA KASS 2A BULTEH 2000 Ltd Made In Bulgaria EKOMILK tra CONTROLS on the front panel Select the work mode Skip and search forward and backwards Confirm the choice Tube sucker Plastic support pH Electrode Thermometer Probe Measuring mug for pH Temperature Holder for pH Electrode and Thermometer Probe OANNMNFWN Fe SWITCHES and OUTLETS on the rear panel pH socket BNC RS 232 Interface outlet Temperature outlet ON OFF Switch for car vehicle 12 V DC outlet FUSE POWER Switch 220V 50Hz 220 V AC power led PARTS AND ACCESSORIES Description EKOMILK M Holder for pH electrode and tempe
6. and switch it on after 10 15 sec Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs lL PH CALIBRATION Attention To get precise pH results calibrate the pH measurement system before you measure the pH of the sample or at least twice a week For more information see section pH MEASUREMENT ADDITIONAL INFORMATION Calibration is an important part of electrode maintenance This assures not only that the electrode is behaving properly but that the system is operating correctly It is recommended that the user perform at least a 2 Point calibration using standard buffers that adequately cover the expected measurement range prior to measurement 1 Point Calibration can also be used for quick measurements Ekomilk is capable of 3 point calibration to ensure enhanced accuracy throughout the pH measurement range The 3 point calibration offers flexibility of calibrating at 3 internationally accepted calibration points namely pH 7 00 4 00 and 10 00 pH measurement is temperature sensitive Automatic Temperature compensation is contained within the milkanalyzer To activate the ATC simply plug in the temperature probe into the phono jack Attention It is best to select a buffer as close as possible to the actual pH value of the sample to be measured Use standard calibration buffers that the temperature and the sample solution are the same Steps 1 P
7. disconnected or the received results are out of spec limits or there is a damage in the measuring system you will have message ERR instead of results 2 The pH result is valid when there is R Ready on the display behind the value If there is not it you must make an other measurement to get a more precise result 3 pH result is strongly dependent on the temperature If the pH electrode is connected but the temperature probe is not the pH result will be reduced to value at 25 C It is possible the received pH result to be without spec accuracy 0 02 In this case is no importance if R is displayed behind the pH result 12 Before starting a new measurement there is a possibility to erase the last measurement from the analyzer s memory Press button and then press button not releasing button Y The message RECORD DISCARDED appears on the display In case of measuring system damage the message ERROR 10 will appear on the display Contact your dealer to make the repairs In case of insufficient milk in measuring camera or measuring system damage ERROR 11 will appear on the display Poor some more milk and make fresh start CLEANING OUT Daily procedure It is necessary to clean the analyzer in the following cases 1 The interval between two consecutive measurements is more than half an hour 2 End of working day Notes Make sure the Analyzer is always cleaned properly otherwise the device sensor will be contaminated a
8. mug with proper temperature milk sample and make a fresh start Replace the out of order Measuring System with a new one see Assemblies Replacing Procedures Re enter the password The total calibration value can range from 2 54 to 2 54 for fatness protein and Solids non fat SNF and 12 7 A to 12 7 A for density In case a bigger number has been achieved during a calibration procedure a CAL OUT OF RANGE error message appears on the display If a calibration value out of allowed limits is really needed Measuring system is out of order and must be replaced see Assemblies Replacing Procedures 6 ERROR 03 Wrong PROM check PROM is damaged or Reprogram PROM with correct value sum erased To correct this error you must refresh Analyzer s memory Press MODE button select with search buttons Y SEND amp CLEAR confirm with OK The message PLEASE WAIT appears on the display while memory clearing is going on Wait for message TRANSFER OK Y and press OK to confirm the clearing procedure Message READY confirms that memory refresh process is completed Change PROM Use proper power supply voltage value Replace the out of order Measuring System with a new one see Assemblies Replacing Procedures 25 ERROR TYPE PROBLEM amp REMEDY MASSAGE CAUSES 11 ERROR 11 See EMPTY CAMERA See EMPTY CAMERA 12 ERROR TIME amp DATA TIME amp DATA Chip is Check the TIME amp DATA Chip SETTING TIME n
9. procedure several times till clean water comes out from the Analyzer 13 pH Electrode Cleaning and Storage procedure See section pH MEASUREMENT ADDITIONAL INFORMATION CALIBRATION The Analyzer should be calibrated if the measuring accuracy for one or more milk parameters is out of the specified limits Calibration values determination Determine a milk sample FAT contents by means of a classical method for example you can use Gerber method Test the same milk using Milkanalyzer Subtract the Milkanalyzer FAT value from FAT value achieved with classical method If the difference value is in the spec limits there is no need of fat calibration Otherwise add this difference value as a fat calibration value using the procedure described in Calibration values Saving Determine a milk sample SOLIDS NON FAT SNF by means of a classical method Test the same milk using Milkanalyzer Subtract the Milkanalyzer SOLIDS NON FAT SNF value from SOLIDS NON FAT SNF value achieved with classical method If the difference value is in the spec limits there is no need of SOLIDS NON FAT SNF calibration Otherwise add this difference value as a SOLIDS NON FAT SNF calibration value using the procedure described in Calibration values saving Determine the milk sample DENSITY by means of a density meter Test the same milk using Milkanalyzer again Subtract the Milkanalyzer DENSITY value from DENSITY value a
10. 43 Power supply trouble Switch off the milk analyzer and switch it on after 10 15 sec Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs CAL ERROR 44 pH electrode or Check the connections termosensor is disconnected Activate or replace the out of order pH pH Electrode damaged electrode with a new one see pH measurement Additional information Replace the out of order Temperature probe Temperature probe with a new one damaged Try again to calibrate the milk analyzer If the problem still exists the pH measuring system is pH measuring system is damaged is out of order Contact your dealer to damaged make the repairs CAL ERROR 46 Wrong buffer solution Fill the measuring mug with right buffer and repeat the calibration procedure CAL ERROR 47 pH measuring system is Switch off the milk analyzer and switch it on damaged after 10 15 sec If the problem still exists the pH measuring system is out of order Contact your dealer to make the repairs 18 TIME amp DATA CALIBRATION Press the search buttons to select CALIBRATION mode Enter the password as it is described in CALIBRATION VALUES SAVING and select TIME amp DATA to be calibrated Press OK to confirm The message TIME 00 00 00 appears on the display button 7 changes the cursor position button changes the over cursor value button MODE cancel
11. BRATION eei sdceastecsenastscicauguvacheveteonctosscaseassbussnedsusss 15 PH CALIBRATION eei atecou cs eee tnshe rece eto aequ vac es saedu dine shosa tenta su esi pe oria ve Pact aad 16 TIME amp DATA CALIBRATION ere castae deba tu sna ru ena cS tn SES Sra s Uo kn tr aera can DP eae E apa vo cus 18 PH MEASUREMENT ADDITIONAL INFORMATION eere enne 18 MILK CONDUCTIVITY ADDITIONAL INFORMATION 23 ERRORS LIS re 23 GUARANTEE 5 ocetesico ce peiub tuse euge ouS epus arua QUu op pure ov ee ua Ce ups os Nee RS SEIe EE E TXn v ssis 26 a EKOMILK ULTRA ULTRASONIC MILK ANALYZERS KEY FEATURE EKOMILK ULTRA Ultrasonic Milk Analyzers are designed for fast and cost effective analysis of the fat contents non fat milk solids SNF protein milk density for both cow and sheep milk and added water to milk as well Key feature Fast Analysis Allows a large number of measurements to be done Simple and lightweight design Cost effective Low power consumption e Very small quantity of milk required e No acid or other chemicals are used e One year full warranty e Measuring accuracy adjustment can be done by the user RS 232 Interface optional on request Environmental Conditions Ambient air temperature 15 30 C Milk temperature 15 30 C Relative humidity 30 80 Electrical Parameters AC Power Supply voltage 220V 5 DC Power Supply voltage 12V to 14 2V
12. BULTEH 2000 Ltd Industrial Area VEREA PLAST building Stara Zagora BULGARIA Tel Fax 359 42 260 19 Tel 359 42 620896 e mail bulteh sz inetg bg EKOMILK MILK ANALYZER MILKANA KAM98 2A ultra PRO Ultrasonic Milk Analyzers FAT SNF DENSITY ADDED WATER FREEZING POINT PROTEIN ADDITIONAL OPTIONS Ll CONDUCTIVITY Q pH TEMPERATURE n COLLECTING AND PRINTING DATA OPERATING INSTRUCTIONS TABLE OF CONTENTS TABLE OF CONTENTS ccscssssssceesseosssessesssvssssscososoesoovssesssssssosusossssorsssssosssosss cosso s sesse 2 EKOMILK ULTRA ULTRASONIC MILK ANALYZERS KEY FEATURE 3 CONTROLS ON THE FRONT AND REAR PANELS esesssssesessessossesossossssossoses 4 PARTS AND ACCESS ORTES winccssccsccnasscatbscindssahbocagesetcanesintssccsseceuastassoaiiosnedsncdattseaes 5 MAINS Mor 6 MILEK SAMPEES nissin eb qo tete eren c xe esa REPE bae hk d sens aea ce eve e ud a eoe ses 7 BASIC MODES FOR USE sisssscccsscccsssscuscssseccsusseabucteusssocesdeetuccsisocesasseeiuedetueseosvoseesssuse 7 COLLECTING AND PRINTING DATA IN CASE OF MICRO PRINTER CONNECTED TO THE ANALYZER ea epa cosedstecscassucevnetenccdsodecscsssbsieasees 7 DATA TRANSFERRING uiis nsss es s sS 8 MILK ANALYSIS cisccsccessvsicied socassexesbccucsecveleniuetentaadecavedceed socossusdsastuatontseduseetevest Id 10 CLEANING OUT us 12 CALIBRATION Pct 13 CALIBRATION VALUES SAVING cccccsssssscssccsccsescsscssssscsssssccssssscssssssesenees 14 CONDUCTIVITY CALI
13. acing Procedures 2 EMPTY a system Air bubble in the Fill again the mug with the same milk CAMERA measuring sensor sample and make a fresh start The suction system has 1 Check the Rubber Plug position and fix some air leak if necessary If the Rubber Plug stays loose in the Syringe replace the Syringe 2 Test the analyzer in Motor off mode If no problem occurs in this mode the ERROR TYPE PROBLEM amp MASSAGE CAUSES 3 HOT SAMPLE 4 WRONG PASSWORD 5 CAL OUT OF RANGE 7 ERROR 06 8 ERROR 07 9 ERROR 09 Measuring system Calibration Incorrect Password Calibration Measuring system Data collection There is no communication between the main processor and PROM Measuring system Measuring system contaminated or damaged Milk sample s temperature above the spec Measuring system contaminated or damaged Attempt to enter a calibration value out of allowed limits Incorrect or lost data Stored data for suppliers and milk parameters was lost PROM is burnt or not properly put in the socket The power supply voltage is below spec Measuring system out of order 24 REMEDY Pump is out of order Replace the out of order Pump with a new one and put the Analyzer in MOTOR ON mode see Assemblies Replacing Procedures If the problem still exists see next cause Replace the out of order Measuring System with a new one see Assemblies Replacing Procedures Fill again the
14. button changes the over cursor value button MODE cancels the changes and returns COW MILK on the display button OK confirms the ID NUMBER and shows QUANTITY 0000 0 button 7 changes the cursor position button changes the over cursor value button MODE cancels the changes and returns COW MILK on the display button OK start measurement Before starting a new measurement there is a possibility to erase the last measurement from the analyzer s memory Press button and then press button not releasing button Y The message RECORD DISCARDED appears on the display The maximum number of record can be 120 If you try to write more records a NO MEMORY SPACE error message appears on the display In this case you must transfer the data to a computer and clear empty the analyzer s memory See procedure described in Data transferring ZED E C DATA TRANSFERRING Transfer requirements Milkanalyzer Ekomilk Data Collection System installed PC with Milk Data 2001 program Version 1 3 e RS232 Null Modem Cable Steps 1 Connect the milkanalyzer EKOMILK to the PC 9 Switch off the milkanalyzer and the PC Connect the RS232 cable to some free COM port to the PC and to the RS 232 connector of Milk analyzer Fist switch the milkanalyzer on next switch on the PC 2 Start Milk Data 2001 version 1 3 program Choose FROM MEMORY from Setting menu This mode allows you to transfer stored information in Analyzer s mem
15. chieved with classical method If the difference value is in the spec limits there is no need of milk DENSITY calibration Otherwise add this difference value as a milk DENSITY calibration value using the procedure described in Calibration values Saving Note If you will calibrate both SOLIDS NON FAT SNF and DENSITY parameters first calibrate SOLIDS NON FAT SNF Test the same milk using EKOMILK Analyzer again Calibrate the DENSITY only if it is necessary Determine a milk sample PROTEIN contents by means of a classical method for example you can use Kjeldahl method Test the same milk using EKOMILK Analyzer Subtract the Milkanalyzer PROTEIN value from PROTEIN value achieved with classical method If the difference value is in the spec limits there is no need of protein calibration Otherwise add this difference value as a protein calibration value using the procedure described in Calibration values Saving 14 CALIBRATION VALUES SAVING To save a new calibration value press MODE button first Press the search buttons to select calibration mode O CALIBRATION Press OK The display shows PASS 1 first password number prompt Set with search buttons the first password number Press OK to confirm it A prompt for the second password number appears on the display PASS 2 Enter the second password number then in the same way as the first one Enter the third password number when a PASS 3 prompt appear
16. ctivity buffer instead of water Throw the solution away Use the conductivity buffer only once 3 Press the search buttons to select CALIBRATION mode Enter the password as it is described in CALIBRATION VALUES SAVING and select the Conductivity to be calibrated Confirm it with OK The inscription LOAD CAL LIQUID appears on the display 4 Fill once again the measuring mug with conductivity buffer 5 02 30 596 mS cm 18 0 1 C Place the measuring mug on the plastic support 5 with the tube sucker into the solution and press OK key A message WORKING appears on the display while the calibration measuring is going on When the measurement is completed the display shows CAL FINISHED The conductivity calibration procedure is complete Throw away the used solution You may repeat steps 3 and 4 again for better calibration Attention Conductivity buffer solution can be used only once 5 After calibrating clean the Ekomilk with water using the procedure described in CLEANING OUT Weekly procedure 16 COND CAL PROBLEM amp REMEDY ERROR CAUSES MESSAGE CAL ERROR 64 Pump damage Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs Wrong buffer solution Fill the measuring mug with conductivity buffer 5 02 0 5 mS cm 18 0 1 C and repeat the calibration procedure CAL ERROR 66 Power supply trouble Switch off the milk analyzer
17. e for more information see part COLLECTING AND PRINTING 11 ATTENTION The maximum number of records can be 120 If you try to write more records NO MEMORY SPACE error message appears on the display In this case you must transfer the data to a computer and clear empty the Analyzer s memory See procedure described in section Data transferring User s Guide The message WORKING appears on the display while measurement is going on Warning In case of formation of air bubble in the measuring camera the message EMPTY CAMERA will appear on the display Then make a fresh start When the measurement is completed the display shows the results for following milk parameters F FAT T TEMPERATURE C S SOLIDS NON FAT SNF FP FREEZING VALUE D MILK DENSITY Z CONDUCTIVITY P PROTEIN PH PH FREEZING VALUE FREEZING POINT C 100 Push button Y to see second display where there is ADDED WATER TO MILK instead of FREEZING VALUE F FAT T TEMPERATURE C S SOLIDS NON FAT SNF W ADDED WATER TO MILK D MILK DENSITY Z CONDUCTIVITY P PROTEIN PH PH Push button once more if you want to see again first display For more information see pH MEASUREMENT ADDITIONAL INFORMATION and CONDUCTIVITY MEASUREMENT ADDITIONAL INFORMATION Attention To get precise pH results calibrate the pH measurement system at least twice weekly Attention 1 If the probes pH or temperature is
18. g menu the program version must be 1 3 choose the right COM port connected to the Milkanalyzer In This case you must confirm TRANSFER OK N or press button MODE Attention TRANSFER OK Y will erase all data 3 Transmission error In case of a transmission error a warning message will appear on the display The data received contains 1 error s Accept data YES or NO YES accepts only the correct data NO cancels all data 10 In this case you can choose from Milkanalyzer TRANSFER OK N and confirm with OK This procedure transfers again the data Wait for computer s message If there is transmission error again you can decide to accept the right data or to repeat once again the transfer If you want to erase the data and empty Analyzer s memory set with search button TRANSFER OK Y and confirm with button OK Message READY register that the erase process is completed Now you can make new 120 milk data records If you want keep data in the Analyzer memory press button MODE In this way the data remains in Analyzer s memory and it is possible to transfer it again to another computer MILK ANALYSIS Take out both plungers from the syringes Insert the rubber plugs with the plastic tubes instead of plungers The Analyzer is ready for use in mode with suction pump Measurement Steps Fill the measuring mug with milk sample to be measured Place the measuring mug on the plastic support 5 with the tube sucker into the mi
19. he problem still exists the Pump is out of order Contact your dealer to make the repairs 15 CAL ERROR 44 pH calibration pH electrode or Check the connections termosensor is disconnected pH Electrode damaged Activate or replace the out of order pH electrode with a new one see pH measurement Additional information Temperature probe Replace the out of order Temperature damaged probe with a new one Try again to calibrate the milk analyzer If pH measuring system is the problem still exists the pH measuring damaged system is damaged is out of order Contact your dealer to make the repairs 26 ERROR TYPE PROBLEM amp REMEDY MASSAGE CAUSES 21 NO MEMORY Data collection Attempt to enter a new The maximum number of records can be SPACE record out of allowed 120 If you try to write more records NO number MEMORY SPACE error message appears on the display In this case you must transfer the data to a computer and clear empty the Analyzer s memory See procedure described in section Data transferring User s Guide GUARANTEE Guarantee is one full year Guarantee is void if warranty labels are removed Under no circumstance you should try to repair the Analyzer yourself as this will invalidate the guarantee The guarantee conditions for this analyzer are as defined by our representative in the country of sale Password Serial N Date
20. likely to be with a deviation out of specification Warning The covers of the Analyzer should never be removed while the power leads are connected Warning Under no circumstance should you try to repair the Analyzer s power lead yourself In case of power lead damage contact your dealer to make the repairs MILK SAMPLES Milk samples temperature should be 15 30 C Milk with surface fat film should be heated to 40 45 C by means of water bath Stir up and cool it to 29 30 C If the milk temperature is above 38 C the message HOT SAMPLE appears on the display Milk acidity should be less that 25 T Use the milk sample only once When the measuring is carried out throw the sample away BASIC MODES FOR USE Press the MODE button to enter basic modes menu Basic modes available are as follows O COW MILK analysis of cow milk O SEND amp CLEAR data transferring mode O REC CHOICE turning on off the data collection system O CLEANING cleaning in the end of working day O CALIBRATION calibration O SYSTEM manufacturer s mode only O SHEEP MILK analysis of sheep milk Press the search buttons to select desired mode COLLECTING AND PRINTING DATA NCASE oF MICRO PRINTER CONNECTED TO THE ANALYZER 1 SETTINGS Press the MODE button only once Press the search buttons to select REC CHOICE mode Press OK when REC CHOICE mode is displayed The message RECORD DATA appears on the display Set with sea
21. lk sample pH and temperature measurement Remove the protective rubber cap of the pH electrode before proceeding with measurement Take care not to exert too much for force as this may cause damage to the electrode Use de ionized or distilled water to rinse the electrode before use This will remove impurities that have adhered on the electrode body Rinsing will also serve to activate the electrode especially if it has been dehydrated in which case you may have to soak the electrode in water from 10 minutes onwards See Section pH Measurement Additional information Fill an other measuring mug with the same milk sample Place it on pos 8 and dip the electrode and temperature probe into the sample ensuring that the electrode is completely immersed into the sample Stir the mug gently to create a homogeneous sample Attention The measurement of pH and temperature is separate from the measurement of fat SNF density added water protein and conductivity If you don t place the mug with milk on pos 8 you will have not right results for pH and temperature Press MODE and by means of the search buttons select the desired mode e COW MILK analysis of cow milk e SHEEP MILK analysis of sheep milk When the proper type of milk is displayed press OK to start the measurement Milk automatically is driven into the measuring camera The message NUMBER 001 appears on the display if Analyzer works in COLLECTING AND PRINTING DATA mod
22. mber equal to the total calibration value for this milk parameter The total calibration value is an algebraic sum of all calibration values added for this milk parameter The calibration is completed Note The total calibration value can range from 2 54 to 2 54 for fatness protein and Solids non fat SNF and 12 7 A to 12 7 A for density In case a bigger number has been 15 achieved during a calibration procedure a CAL OUT OF RANGE error message appears on the display E CONDUCTIVITY CALIBRATION For more information see section CONDUCTIVITY MEASUREMENT ADDITIONAL INFORMATION Conductivity sensor needs to be calibrated on a regular basis once a month This assures not only that the sensor is behaving properly but that the system is operating correctly Ekomilk conductivity calibration is performed at one specific value 5 02 0 5 mS cm 18 0 1 C For conductivity calibration use only producer s conductivity buffer solution Attention Before conductivity s calibrating the milkanalyzer must be switched on one hour in advance Steps 1 Before calibrating it is necessary to clean the Ekomilk with water using the procedure described in CLEANING OUT Weekly procedure 2 Fill the measuring mug with conductivity buffer 5 02 0 5 mS cm 18 0 1 C Place the measuring mug on the plastic support 5 with the tube sucker into the solution Perform the cleaning procedure once again but use condu
23. nd damaged soon Cleaning out WITH MOTOR SUCTION PUMP Fill the measuring mug with warm but not hot and clean water 40 60 C Press the MODE button once Press the search buttons to select CLEANING Confirm with OK The display shows message CYCLES 01 number of cleaning cycles to be done One cleaning cycle pumps the water in and back five times Press the search buttons Y to set the desired number of cleaning cycles This number can range from 1 to 99 We recommend one or two cleaning cycles to be chosen in case a regular cleaning procedure is performed When the desired number is displayed press OK to start the cleaning When the CLEANING stage is over CLEANING END is shown on the display Remove the mug and throw away the muddy water Repeat this procedure several times till clean water comes out from the Analyzer Weekly procedure Weekly procedure To ensure a good work of the EkomilkPro Analyzer it is advisory to clean the Analyzer once a week minimum Take out both rubber plugs with the plastic tube from the syringes Insert both plungers instead of the rubber plugs with the plastic tubes Fill the two measure mugs with warm but not hot and clean water 40 60 C Place the measuring mug on the plastic support 5 with the tube sucker into the water Pull up and push down both plungers one by one several times Push down as far as possible both plungers and remove the mug and throw away the muddy water Repeat above
24. ory to the program Milk Data 2001 3 Press a Milk Analyzer s MODE button only once Press the search buttons to select SEND amp CLEAR mode Press OK While the data is transferring the message PLEASE WAIT is on the Analyzer s display followed by the message TRANSFER OK Y or N On the bottom of the screen a progress bar provides users with visual feedback about the progress of a transmission procedure As the procedure progresses the rectangular progress bar gradually fills from left to right with the system highlight color ATTENTION WAIT ABOUT 1 2 MINUTES WHEN THE MESSAGE APPEARS ON THE COMPUTER SCREEN 1 Transfer is successful When transfer is completed successfully new row are added to the table The message The data received successfully OK appears on the computer s display If you want to erase the data and empty Analyzer s memory set with search button TRANSFER OK Y and confirm with button OK Message READY register that the erase process is completed Now you can make new 120 milk data records If you want keep data in the Analyzer memory press button MODE In this way the data remains in Analyzer s memory and it is possible to transfer it again to another computer 2 No data received This may be for one of following reasons 1 Analyzer s memory is empty 2 The RS232 cable is not correctly connected or it is damaged 3 MILK DATA 2001 setup is not correct choose FROM MEMORY option from Settin
25. ot installed or does not work properly Incorrect Time or Date Enter right value value 13 CAL ERROR 41 pH calibration Pump damage Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs 14 CAL ERROR 43 pH calibration Power supply trouble Switch off the milk analyzer and switch it on after 10 15 sec Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs 16 CAL ERROR 46 pH calibration Wrong buffer solution Fill the measuring mug with right buffer and repeat the calibration procedure 17 CAL ERROR 47 pH calibration pH measuring system is Switch off the milk analyzer and switch it damaged on after 10 15 sec If the problem still exists the pH measuring system is out of order Contact your dealer to make the repairs 18 CAL ERROR 64 Conductivity Pump damage Try again to calibrate the milk analyzer If calibration the problem still exists the Pump is out of order Contact your dealer to make the repairs 19 CAL ERROR 65 Conductivity Wrong buffer solution Fill the measuring mug with conductivity calibration buffer 5 02 0 5 mS cm 18 0 1 C and repeat the calibration procedure 20 CAL ERROR 66 Conductivity Power supply trouble Switch off the milk analyzer and switch it calibration on after 10 15 sec Try again to calibrate the milk analyzer If t
26. r by particulate in the solution If a clogged junction is V suspected it is best to clear the junction Heat a dilute KCI solution to 60 80 C Place the sensing portion of the pH electrode into the heated KCl solution for approximately 10 minutes Allow the electrode to cool while immersed in some unheated KCI solution n ae a 77 e am I J 9 CE i E c Allow s olution to cool d Protein Deposits Prepare a 1 pepsin solution in 0 1M HCl Allow the electrode to stand in this solution for five to ten minutes Rinse the electrode with de ionized water AN CI zv 7 Ne i A Ada i P 01M HO Pepsin 1 jt jr Y FT lt gt Kf Soak Le 47 M k y j fer Ve 4 5 10 Jj ro 4 kc m nutes e z 2 7 Electrode activation Generally if the procedure of storage and maintenance had been closely followed the electrode can be used immediately However should the electrode response become sluggish it may be possible 21 that the bulb has dehydrated The bulb can be rehydrated by immersing the electrode in an ideal storage solution e g buffer pH 4 solution for 1 2 hours If this fails the electrode may require re activation If the above procedure does not reactivate the electrode to acceptable status try rejuvenation the electrode by following the procedure outlined below 2 8 Rejuvenation Procedure a Dip and stir the electrode in freon or alcohol for 5 minutes
27. rature probe Temperature probe pH electrode User s guide Connector 12V CD Milkanalyzer software tools RS232 Cable Null Modem Link cable 1 Measuring mug NES Buffer solution Conductivity 500 ml 1 5 02 0 5 mS cm 18 0 1 C p Buffer solution 60 ml 1 pH 7 00 0 01 20 C he Buffer solution 60 ml 1 pH 4 00 0 01 20 C bol Buffer solution 60 ml 1 pH 10 00 0 01 20 C p Container with KCl 20 ml pH buffer solution description Pharmacopoeia standard Use only this type buffer standard for calibrating Composition Potassium Borax Citric acid Sodium dihydrogen Sodium hydroxide hydroxide solution phosphate Di solution Sodium chloride sodium hydrogen phosphate Temperature characteristics 10 C 7 06 25 C 6 99 20 C 7 00 30 C 6 98 40 C 6 95 50 C 6 91 10 C 4 00 20 C 4 00 25 C 4 00 30 C 4 00 40 C 4 00 50 C 4 05 10 C 10 10 20 C 10 00 25 C 9 95 30 C 9 90 40 C 9 82 50 C 9 75 MAINS Place the Analyzer vertically on a table or any other flat surface AC Power Supply Voltage Connect the AC power lead to the mains socket Set the Power switch to On 12V DC Power Supply Voltage Connect the DC supply lead to 12V outlet black is and to the autonomous DC supply for example car supply Set the 12 V Power switch to On 1 Attach the holder onto Ekomilk The Ekomilk comes complete with a Holder for pH electrode and
28. rch buttons Y the desired mode Y or N 1 1 N NO Milk analysis without printing data for vendor ID Volume liters This is the standard work mode of Analyzer pass to the next chapter MILK ANALYSIS WEM FINES 17 08 After the current measurement is completed the results could be L TORIK printed by pressing the arrow button on the analyzer front panel MUSEOS 8 20 DEN dui Result are printed every time when this button is pressed p me Fp Baa Paor NM Recipe will have this form UERR PH 7 85R 0 25 18 1 2 Y YES Milk analysis with printing data for vendor ID Volume liters and milk parameters When the power is on Milkanalyzer enter into Y YES mode milk analysis with printing data VENDOR 881 DATE 23 88 82 TIME 12 20 QUANT 888 08 L COW MILK After the current measurement is completed the results could be 25 S96 5 oN 77 8 printed by pressing the arrow button on the analyzer front panel Results are printed every time when this button is pressed Recipe will have this form ff 3 14 FP 53 88 PROT 3 88 2 5 06 Pu 6 84 T 22 48 2 COLLECTING DATA The message NUMBER 001 appears on the display while measurement is started it does not matter which measuring mode is activated COW MILK or SHEEP MILK NUMBER defines the ID number for everyone supplier In this case it is necessary to write in advance s suppliers list by ID number and name button 7 changes the cursor position
29. ress the search buttons to select CALIBRATION mode Enter the password as it is described in CALIBRATION VALUES SAVING and select the pH to be calibrated Confirm it with OK The inscription LOAD PH 7 LIQUID appears on the display This message indicates that pH 7 00 is ready for calibration 17 2 Rinse the electrode well with de ionized water Do not wipe the electrode as this may cause a build up of electrostatic charge on the glass surface 3 Fill a measuring mug with the buffer 7 00 Place it on pos 8 and dip the electrode and temperature probe into the buffer ensuring that the electrode is completely immersed into the sample Stir the electrode gently in the buffer Once you have selected the correct solution Press OK key to confirm The message WAIT PLEASE appears on the display Wait for the measured pH value to stabilize The next message LOAD PH 4 LIQUID will be displayed when the reading is ready The Ekomilk is calibrated to buffer 7 00 NOTE Press button to finish calibration Message CAL FINISHED appears Confirm it with OK The 1 point calibration procedure is now complete For 2 or 3 point calibration perform the 1 2 3 steps following the Ekomilk prompts until completion Attention pH buffer solutions can be used many times CAL ERROR 41 Pump damage Try again to calibrate the milk analyzer If the problem still exists the Pump is out of order Contact your dealer to make the repairs CAL ERROR
30. s on the display Note In case of incorrect password is entered a message WRONG PASSWORD appears on the display Then make a fresh start In case the right password numbers are entered the display will show FAT COW MILK Press the search buttons to select the milk parameter to be calibrated O FAT COW MILK cow milk fatness calibration O SNF COW MILK cow milk Solids non fat SNF calibration O DEN COW MILK cow milk density calibration O PROT COW MILK cow milk protein calibration O FAT SHEEP MILK sheep milk fatness calibration O SNF SHEEP MILK sheep milk Solids non fat SNF calibration O DEN SHEEP MILK sheep milk density calibration O PROT SHEEP MILK sheep milk protein calibration O CONDUCTIVITY conductivity calibration See section Conductivity calibration O PH pH calibration See section pH calibration O TIME amp DATE time and date calibration See section TIME AND DATE CALIBRATION Select desired calibration parameter Confirm it with OK The inscription VALUE appears on the display Press the buttons to set the calibration value required The number can range from 2 54 to 2 54 at interval of 0 02 for fatness protein and Solids non fat SNF and from 12 7 to 12 7 at interval of 0 10 for density calibration This number defines the calibration value When desired value is set on the display press the OK button to save it Then the display shows TOTAL and a nu
31. s the changes and returns COW MILK on the display button OK confirms the TIME and shows DATA 00 00 00 button 7 changes the cursor position button changes the over cursor value button MODE cancels the changes and returns COW MILK on the display button OK confirms the DATE and shows TIME SET OK If TIME amp DATA Chip is not installed or does not work properly or a incorrect Time or Date value has been achieved during a calibration procedure a error message ERROR SETTING TIME appears on the display I PH MEASUREMENT ADDITIONAL INFORMATION 1 General pH is a unit to measure which describes the degree of acidity or alkalinity of a solution It is measured on scale of 0 to 14 The term pH is derived from p the mathematical symbol of the negative logarithm and H the chemical symbol of Hydrogen The formal definition of pH is the negative logarithm of the Hydrogen ion activity 2 pH Electrode For pH measurement Ekomilk needs a combination electrode compatible with most pH electrodes that have BNC connectors and zero potential the pH where the millivolt output of the electrode equals 0 near 7 pH 2 Electrode part 19 The electrode is the most important part of the pH measurement The electrode glass membrane is fragile and must be handled with care To protect the glass membrane and to maintain activation the glass membrane is covered by a protective rubber cap containing a suitable storage solution
32. temperature probe It is designed for easy use and installation Care must always be taken to avoid use of excessive force in the process of attaching this component Ekomilk has two holes on the side for attachment of pH electrode and temperature probe via the Holder 2 Connecting the pH electrode pH socket pos 5 on the rear panel 2 1 During this operation it is important that water does not get onto the BNC electrode connector Also avoid touching the connector with soiled hands Connect the pH Electrode sliding the Electrode connector over the socket of the Ekomilk BNC Connector Ensure that the slot of the connector is in the line with the protrusions of the socket Rotate the connector clockwise until it locks Be careful not to use excessive force in this operation 3 Connecting the temperature probe Temperature outlet pos 3 on the rear panel The temperature probe uses a phono jack to connect with the socket on the Ekomilk 4 Attaching the pH Electrode and Temperature probe onto the Holder Align the end of the electrode sensor side with the hole of the Holder Insert the pH electrode into the hole of the Holder as shown Repeat the same procedure with the temperature probe Warm up When the power is on WARM UP appears on the display When the warm up stage is over in about 5 minutes EKOMILK is shown on the display The Analyzer is ready to use Do not take into consideration the first sample because it is
33. void any system down time 4 Buffer Solutions Buffers are solutions that have constant pH values and the ability to resist changes in that pH level They are used to calibrate pH measurement system 22 5 Automatic Temperature Compensation ATC Automatic Temperature compensation is contained within the milkanalyzer because pH measurement is temperature sensitive To activate the ATC simply plug in the temperature probe into the phono jack 6 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 electrodes need to be calibrated on a regular basis Calibration in pH buffer solution corrects for this change Calibration is an important part of electrode maintenance This assures not only that the electrode is behaving properly but that the system is operating correctly Usually pH meters require calibration at 3 specific pH values One calibration is usually performed at pH 7 second and third are typically performed at pH 4 and pH 10 Attention It is best to select a buffer as close as possible to the actual pH value of the sample to be measured Use standard calibration buffers that the temperature and the sample solution are the same 7 Milk acidity and pH The following table shows the relation between pH value and T d Variations pH Variations pH average value average value Raw milk Pasteurize milk 23
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