Milkotester MASTER LM2-P2 Operating Instructions Manual

Milk analyzing device

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Milkotester Ltd.

49, Hristo Botev St., 4470 Belovo, BULGARIA, Phone: +359 889 259 646

MILKOTESTER

Milk analyzing device

Model: MASTER LM2-P2

Fat, Solids-Non-Fat (SNF), Protein, Lactose, Water content,

Temperature (°C), Freezing point, Solids, Density, pH

THE INFORMATION CONTAINED IN THIS MANUAL IS A SUBJECT TO

CHANGE WITHOUT NOTICE. FOR UPDATES, PLEASE CONTACT THE

MANUFACTURER OR USE THE FOLLOWING WEB ADDRESS :

http://www.milkotester.com

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Page 1 49, Hristo Botev St., 4470 Belovo, BULGARIA, Phone: +359 889 259 646 MILKOTESTER Milk analyzing device Model: MASTER LM2-P2 Fat, Solids-Non-Fat (SNF), Protein, Lactose, Water content, Temperature (°C), Freezing point, Solids, Density, pH THE INFORMATION CONTAINED IN THIS MANUAL IS A SUBJECT TO CHANGE WITHOUT NOTICE.
Page 2 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CAUTION! This device operates on 100-250V. In order to avoid electrical shock or to prevent the unit from damage DO NOT REMOVE the cover! Please follow the instructions in this manual ! Safety recommendations : ...
Page 3: Table Of Contents
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Table of contents 1. General description ................ 4 2. Close-up view ................. 5 3.1 Front panel ................5 3.2 Display ................6 3.3 Back panel ................7 3. Samples preparation ..............8 4. Working description ................ 10 4.1 Preparing the device ............
Page 4: General Description
30% to 80%. With regard to the “moisture problem” which remains of much significance the front panel of the device is designed to operate when with wet hands. In addition to this MILKOTESTER MASTER provides a one year’s full warranty.
Page 5: Close-Up View
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CHAPTER TWO Close-up view IN THIS CHAPTER Front panel  Display  Back panel  2.1 Front panel 1 – Intake pipette 2 – Sample cup...
Page 6: Display
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Close-up view Display 1 – LCD 2 – Arrow UP button 3 – Arrow DOWN button 4 – ENTER button 5 – EXIT button 6 – CLEAN button 7 – pH measurement 8 – MENU button...
Page 7: Back Panel
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com 2.3 Back panel 1 – Serial port to printer 2 – Serial port RS 232 3 – Power out 12V (for printer) 4 – Power in socket 12V DC 5 – Power switch 6 – pH connector (feature is available on models pH) 7 –...
Page 8: Samples Preparation
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CHAPTER THREE Samples preparation In order that most accurate results are obtained it is important that the milk be kept for 2 hours after milking and stirred well before being used for sample material. A good way to stir up the milk is to pour it several times out of one vessel into another and back.
Page 9 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com The samples are stored in conditions, assuring temperature, corresponding to the requirements for storing such kind of product (advisable – 1 oС). If there is a need of longer sample storing they have to be preserved;...
Page 10: Working Description
“Important Safety Instructions”). Turn on the POWER switch and MILKOTESTER MASTER will be ready for use. Before proceeding with using the unit, please read and follow the rest of the instructions in this chapter! Powering by an external 12V DC power source...
Page 11: Measuring Samples
If the unit does not start up after it is connected to the power source, check the fuse inside the connector plugged into the electrical lighter socket. 4.2 MEASURING SAMPLES After MILKOTESTER MASTER is turned on from the POWER switch, the display reads first: Milk Analyzer MASTER...
Page 12 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com The following text will appear: MEASURING… Please Wait In about 60-90 sec. the results of analyzing will appear on the display as follows: F=xx.xx P=xx.xx S=xx.xx L=xx.xx D=xx.xx Sl=xx.xx Fp- x.xxx W=xx.xx Where: F is for Fat...
Page 13: Making Corrections And Calibration
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com display. If the unit is connected to the printer all results will be automatically printed out. At this point the sample cup can be removed from under the pipette. The instrument will continue to show the measured values until a new analysis is initiated.
Page 14 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Determination the type of the discrepancy: Making measurements Make measurements with different samples (not less than 3) with known values of a separate parameter (for example fat content), determined by the known reference methods of analyses (for example Gerber's method for determination of fat content).
Page 15: Correction
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Conclusion: It is obvious that the difference is variable value and recalibration have to be done. 4.3.1 Correction Example: MENU > Mode > Correction > Cow milk > Fat. To select Mode, Options or Settings use the ↑↓ (up and down) arrows and press ENTER.
Page 16 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Protein Lactose Salts Water Press the ↑↓ (up and down) arrows to correct the value with 0.01. Correction Of Fat 0.01 Press ENTER to validate the correction or EXIT to keep the previous value. MENU > Mode > Calibration.
Page 17 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Set High sample LAC=x.xx SAL=x.xx PRO=x.xx Use the ↑↓ (up and down) arrows and press ENTER to select a parameter. Then the cursor will mark the place to enter a known value. Use the ↑↓ (up and down) arrows to set the desired figure and press ENTER to confirm.
Page 18 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com The sample of milk with high Fat must be measured 5 consecutive times. Put the first cup with the sample and press ENTER. After measurement the following text appears on the display: Put Sample High Milk...
Page 19: Settings And Options
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Before each sample measurement stir the milk by pouring it from one vessel to another. The temperature of the samples should be in the range of 15 to 25 degrees. Before starting calibration it is recommendable to back up the parameters of the existing calibration: MENU >...
Page 20 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com MILKOTESTER Model: MASTER LM2 Ver: x.xx SN: XXXXXX MENU > Options > Language. Language: English Spanish MENU > Options > Time and Date Time and date: Set time Set date MENU > Settings > Set Fr. Point.
Page 21 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Set Fr. Point - 0,540 Press ENTER To Set Use ↑↓ (Up and Down) arrows to enter the new value and Press Enter to confirm. After dialing the last symbol press ENTER to confirm the new value.
Page 22 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Wait until the electrode and the buffer stabilize /the reference value should change the least possible/. Press Enter to set the value. The following text will appear on the display: pH high buffer: x.xx Dip the electrode into the high value buffer solution and make sure that the junction zone of the electrode is at least at 30 mm below the surface of the buffer solution and leave it at rest.
Page 23: Connecting To Printer
MILKOTESTER MASTER can be connected to an optional serial printer for printing out the results. MILKOTESTER MASTER is set to work only with printers supplied by Milkotester Ltd. We warn you that the unit is not set to work with other types of printers.
Page 24 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Connect the other end of the cable to the serial connector RS 232 on the back of the printer. Turn on the POWER switch on the right panel of the printer. The printer is now ready for printing. From this moment on all...
Page 25: Measurement Of Ph
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com MEASUREMENT OF pH (active only on request) The milk analyzer has two modes of work – manual and automatic. They are selected from MENU > Options > pH mode Choose pH mode and press ENTER.
Page 26 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Press the EXIT button to stop measurement of pH and enter the mode: Cow Milk Sheep Milk UHT Milk Now you can start measuring the other components of milk. Table of errors of pH measurement according to ambient temperature: ºC...
Page 27: Cleaning And Maintenance
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CHAPTER FIVE Cleaning and maintenance IN THIS CHAPTER Routine cleaning  Complete flushing  Weekly cleaning  For high accuracy and reliability of the device, the following cleaning procedures should be performed on due times.
Page 28: Complete Flushing
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com 5.2. Complete flushing At the end of the working day the following procedure should be performed: 1. Fill up a sample cup with clean warm water (40 – 50°С) and place it on the sample shelf under the pipette.
Page 29: Troubleshooting
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CHAPTER SIX Troubleshooting Error Possible Repair/remedy message problem /cause Check that there are no air bubbles Insufficient quantity of the the sample. Empty milk sample - Check if after starting measurement, Sensor sucked in the...
Page 30: Technical Specifications
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com CHAPTER SEVEN Technical specification 1. Measured components:  Fat  Solids-Non-Fat (SNF)  Protein  Lactose  Water content  Temperature (°C)  Freezing point  Solids  Density 2. Ranges of measurement: from 0.00% to 20%...
Page 31 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Example: Result = 22; density = 22+1000 =1022. 3. Accuracy: 0.08% ± 0.1% ± Density 0.3 kg/m ± Proteins 0.1% ± Lactose 0.1% ± ADDED Water 3.0% ± Sample Temperature ± Freezing point 0.001 ±...
Page 32: Appendix Freezing Point Determination
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Appendix Freezing point determination 1. Methods for determination. The milk analyzer determines the freezing point of each sample and the quantity of added water. The milk analyser does not measure the freezing point, but calculates it from the components it depends on.
Page 33 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com determined North American average of –0,5404C), below which there will be at 95% confidence that will show 99% of all freezing point determinations on unwatered milk: “if the freezing point is –0,525C or below, milk may be presumed to be free of water or may be confirmed as water free by tests, specified below.
Page 34 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com If you’ve entered for the device basic freezing point –0.540C, measured freezing point –0.540C, the milk analyzer will indicate 0%. When you add 3,8% water, the device will indicate 3,8%-added water. From the above mentioned follows that it is very important to enter correct basic freezing point in the device.
Page 35: Appendix Conductivity Measuring
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Appendix Conductivity measuring (active only on request) Method of determination. Conductivity (or Electrolytic Conductivity) is defined as the ability of a substance to conduct electrical current. It is the reciprocal of the resistance. In a healthy animal*, the mean value of electric conductivity is:...
Page 36: Appendix Internal Printer
ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Appendix Internal printer (active only on request) Printer mechanism, easy loading type. Printing method Thermal line dot printing Paper width: 57,5±0,5mm Printing density: 8dot/mm, 384dot/line Printing speed: 50mm/s or 20line/s Printing width: 48mm Feeding speed: 50mm/s or 20line/s Power: DC 5V , 3A 1. On/Off 2. FEED Button 3. Power LED 4. Cover opening...
Page 37 ULTRASONIC PORTABLE MILK ANALYZER www.milkotester.com Milkotester Ltd. 49, Hristo Botev St. 4470 Belovo, BULGARIA MILKOTESTER MASTER 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 removed.

Milkotester MASTER LM2-P2 Operating Instructions Manual

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