Bulteh 2000 Ekomilk Spectra User manual

Bulteh-2000 ltd.19, Industrial Area
Stara Zagora 6000, Bulgaria
Tel./ Fax:[phone];
Tel. :[phone];
E-mail: [email protected]
Infrared-Ultrasonic Hybrid Milk
Analyzer
USER’S GUIDE
Version 4.1
Revision: 03.01.2023

Contents
1 General information 1
2 Knowing the parts 2
3 Safety measures 3
4 Method of work 4
5 Milk samples requirements 5
6 Cleaning procedure 5
6.1 Infraredmodulecleaning .................................. 6
6.2 Ultrasonicmodulecleaning ................................. 7
6.3 Cleaning before switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.4 Cleaning after switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Zero procedure 11
8 Milk analysis 12
8.1 Position of components and work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.2 Startmeasurement ..................................... 13
8.3 Testing with reference samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9 Graphical user interface 16
9.1 Mainmenu.......................................... 16
9.2 Settingsmenu........................................ 16
9.2.1 Calibratetouchscreen................................ 16
9.2.2 Displayparameters ................................. 17
9.2.3 Firmware update/GUI/OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.2.4 InfraredEepromupdate............................... 18
9.2.5 Ultrasound Eeprom update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.2.6 Printers ....................................... 19
9.2.7 Licenses ....................................... 19
9.3 Data ............................................. 19
9.3.1 Export Data with USB Flash Drive . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.3.2 ExportDataviaLAN ................................ 19
9.4 Connections ......................................... 22
9.4.1 Wi-Fi......................................... 22
9.4.2 GPRS ........................................ 22
9.4.3 Bluetooth ...................................... 22
9.5 Adminmenu......................................... 26
9.5.1 Calibration...................................... 26
9.5.2 Ultrasoundcorrections ............................... 26
9.5.3 AutoCleaning.................................... 28
9.5.4 Sending results to FTP server . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.5.5 Longmeasurement ................................. 29
9.5.6 Inactivitycleaning.................................. 29
9.5.7 Sending results to HTTP server . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.6 SFTP access to Ekomilk Spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10 Errors list 32
11 Appendix 1 - Some reason for Ekomilk accuracy and repeatability deviations 33
12 Appendix 2 - Send last result over serial port(Continuous mode) 35
13 Appendix 3 - Troubleshooting 37
13.1 Filter clogging(infrared only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
13.2 Cuvette clogging(infrared only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
13.3 Sticking of pump’s silicone hose(infrared and ultrasound) . . . . . . . . . . . . . . . . . 40
14 Maintenance 42
15 Guarantee 45

1 General information
Ekomilk Spectra is designed for fast and cost effective control of milk quality - detecting adulterants
(ammonium sulfate, urea, etc.) and milk parameters (Fat, Solids Not Fat, etc.). The mid-infrared
spectral module allows for detection of adulterants and their concentration without the use of chemicals
and the well established ultrasonic module measured the milk parameters. Ekomilk Spectra hybrid
milk analyzer, uses two analytical methods, combined in the convenience of one simple instrument -
infrared spectroscopy in the mid-infrared region, and ultrasonic measurement.
Mid-infrared spectral analysis
Different species in a sample have unique absorption patterns of the infrared light. Based on those
patterns and how pronounced they are, the species (in our case adulterants) and their concentrations
can be identified.
Ultrasonic measurement
Ultrasonic material analysis is based on a simple principle of physics: the motion of any wave will be
affected by the medium through which it travels. Thus, changes in one or more of four easily measurable
parameters associated with the passage of a high frequency sound wave through a material - transit
time, attenuation, scattering and frequency content - can be correlated with parameters in milk.
Why not using only infrared technology for measurement of all parameters?
The short and simple answer is that this will increase the cost for the user 5-15 times without adding
real value for the purpose of the device.
The longer answer is that, to measure all parameters of interest, a much larger portion of the spectrum
needs to be measured and analyzed. However in order to do that either much more sophisticated
mechanics and optics or more sensors are necessary. This will drastically increase the price and also
make the device less suitable for a field instrument.
Application Area:
 Dairy farms
 Milk collecting points
 Dairy industry
 Veterinary and dairy laboratories
Key feature:
 Fast adulterant detection
 Simple and lightweight design
 Cost effective
 No acids or other chemicals used
 Data collection system
 Embedded Real time clock
 RS 232 and/or USB Interface
 USB port with Flash Drive and Numeric keyboard support
 LAN connection
Environmental conditions:
Ambient air temperature 15 ° C÷35 ° C
Milk temperature 5 ° C÷35 ° C
Relative humidity 30 % ÷80 %
1

Parameters:
Measuring ranges: Limit of detection:
Fat 0,5 % ÷12 % ±0,1% (abs.)
Solids non fat (SNF) 6 % ÷12% ±0,2% (abs.)
Milk density (CLR) 1,0200 ÷1,0400 g/cm3 ±0,0005 g/cm3 (abs.)
Protein 2 % ÷6 % ±0,2 % (abs.)
Freezing Point 0 ÷-1,000 ° C±0,01 ° C (abs.)
Added Water to Milk 0 % ÷60 % ±5 % (abs.)
Lactose 0,5 % ÷7 % ±0,2 % (abs.)
Specific adulterant detection:
Ammonium sulfate 0,1 % ±0,05 % (abs.)
Urea 0,15 % ±0,05 % (abs.)
Melamine 0,15 % ±0,05 % (abs.)
Nitrates
(ammonium, potassium, sodium, etc.) 0,05 % ±0,03 % (abs.)
Carbonates/Bicarbonates
(ammonium, potassium, etc.) 0,08 % ±0,05 % (abs.)
Added water 20 % ±5 % (abs.)
Synthetic milk
(veg. oil, urea, detergent, water) 20 % ±5 % (abs.)
Sweeteners
(sucrose, maltodextrin) 0,9 % ±0,5 % (abs.)
Non-specific adulterants:
In case the milk has been contaminated with sub-
stantial volume of unknown adulterant the instru-
ment could detect it.
Technical specifications:
Average time per one measuring 45 sec.
Size 380 x 310 x 285 mm
Weight <4,5 kg
Power consumption (avg.) <50 W
AC Power Supply voltage INPUT: 100 - 240VAC +10/-15% 50/60 Hz
2 Knowing the parts
1. Infrared module inlet with
removable filter
2. Ultrasonic module inlet
3. Cuvette (Infrared module)
4. Infrared module outlet
5. Ultrasonic module outlet
6. Infrared module peristaltic pump
7. Ultrasonic module peristaltic pump
8. Touchscreen display
2

Filter
Measuring mug -25 ml.
Cleaning solution mug - 40 ml.
Mug for waste milk
3 Safety measures
1. Read carefully and strictly follow the instructions described in this user’s guide.
2. Under no circumstances you should try to repair Analyzer’s power lead by yourself.
3. EkoZero concentrate liquid, used for the infrared module is a chemical that is considered hazardous
which in case of direct contact may cause severe eye irritation or even serious eye damage. It is
also considered the that liquid has acute oral toxicity.
4. The cleaning set for the ultrasonic module (EkoDay and EkoWeek) contains base and acid, and
is considered to have corrosive behavior. Use protection - gloves and glasses, when preparing the
cleaning solutions with these chemicals and pay more attention when you work with them.
5. Do not eat, drink or smoke when using the concentrates for preparing cleaning and zeroing
solutions (EkoZero, EkoDay, EkoWeek).
6. EkoSpectra Clean is a powder substance, which in case of direct contact can irritate respiratory
organs and eyes.
7. Wear protective gloves/protective clothing/eye protection/face protection.
8. If by accident there is a direct contact the user should take these precautions:
 After inhalation: Supply fresh air; consult doctor in case of complaints.
 After skin contact: Rinse skin with running water thoroughly.
 After eye contact: Rinse opened eye cautiously with water for several minutes. Remove
contact lenses, if present and continue rinsing. Immediately call a poison center or doc-
tor/physician.
 After swallowing: Immediately call a poison center or doctor/physician.
3

4 Method of work
1. Place vertically the Analyzer on a table or any other flat surface.
2. Connect the Power Supply (Model AC/DC-CL-DT 12/10) to the power supply outlet ”In 12 V
DC” on the Power Supply Panel and to the mains socket.
Attention: Before start working with the device make sure all the preparation work is
done.
3. Preparation of the EkoZero solution for zero setting and cleaning (Infrared only)
The EkoZero concentrate is a liquid. Before preparing the work solution from the concentrate,
check the shelf life label on the bottle and follow the instructions to prepare the solution. Dissolve
contents - 50 ml in 5 L deionized (or distilled) water or 10 ml in 1 L ( 0,01 %). It’s recommended
to use the EkoZero solution within 2 months from preparation.
NOTE: Store the prepared liquid in a cool place.
4. Place the mugs for cleaning solutions below the pumps of the infrared and ultrasonic modules(see
section 7 for more information ).
5. Check if all measuring parts are in place.
6. Check if the filter is in place and clean it if necessary.
7. Switch on the analyzer.
8. Cleaning procedure after switching on will begin (see more section 6.4).
9. Warming up
From a cool start after switching on the device it will take a few minutes for the modules to warm
up. Status indicator in the top left corner on the main menu shows the progress in percentage.
When the warming up is finished the status indicates ”Ready” (Figure 1).
Figure 1: Status: Ready
10. Clean the two modules (IR with EkoZero solution, US with water).
11. ”Zero Procedure” (for the infrared module) - see more in section 7.
12. Start measurement (IR, US, Combined IR + US)
Explanation: When working with the ultrasound module, it is recommended to pre-fill the system
with milk. This can be done in two ways. The first way is to perform cleaning procedure, but
instead of water/cleaning solution the cleaning is with milk. The second way is to measure a
dummy sample (without considering the reported result). The purpose of these actions is to fill
the system with milk for a more accurate result.
4

13. Instruction for preparing 500 ml EkoSpectra Clean working solution (3.5%), used for cleaning
before switching off:
Take a transparent, non-sparkling 500ml water bottle with deionized water (or distilled water)
and warm it up to about 30-35 ° C. Then pour the 18 grams EkoSpectra Clean package into the
bottle. Stir the mixture up to complete dissolving and then cool it down to 15-25 ° C.
Note: The 3.5% EkoSpectra Clean solution is good for use up to 6 month after preparation if
the container is properly closed after every use. The EkoSpectra Clean solution should be stored
at room temperature. If the solution is stored below 14 ° C, it will become an opaque and white
gel. In that case, before using the solution, please warm up the solution above 30 ° C to become
transparent again.
14. Cleaning
In the end of the working day clean the analyzer well, following the instructions in section 6. After
press turn off button, the procedure of cleaning before switching off will start (see more section
6.3).
5 Milk samples requirements
1. Mix the milk before measurement by shaking it gently 5 times, without making foam and air
bubbles.
2. Before measurement, make sure that the temperature of the milk sample is between 15-25 ° C. When
working with the ultrasonic module the sample temperature should be below 38 ° C, otherwise an
error will occurs - HOT SAMPLE.
3. Put the milk sample in a ultrasonic bath for a few seconds - maximum a minute, according to the
degree of aeration.
6 Cleaning procedure
This section is to give directions for daily and periodical cleaning of milk analyzers Ekomilk in order to
assure their long life and proper functioning. Both modules must be cleaned - infrared and ultrasonic.
The analyzer should not stay for more than 30 minutes with milk.
Attention: It is very important to note here that the cleaning solutions for the infrared and the
ultrasonic modules are different. The cleaning solution for the ultrasonic module can damage the
infrared module. That is why the cleaning is performed in two consecutive steps - first the one module
is cleaned with the respective cleaning solution and then the other module is cleaned. The order of
cleaning is not important.
5

6.1 Infrared module cleaning
Ekomilk Spectra cleaning procedure works on a reversal principle to prevent problems with cuvette
clogging.
NOTE: Instructions for preparing EkoZero solution are on the packaging label of the concentrate, also
described in the section 4.
Clean the infrared module, following the steps below:
 the mug for waste milk is placed under the infrared module input.
 the mug for cleaning liquid EkoZero is placed under the IR peristaltic pump.
Figure 2: Cleaning
 when the <Clean IR>button is pressed - the system will request from the operator to load the
cleaning solution. In the case of infrared module cleaning the cleaning solution is the same as
the zero setting liquid - EkoZero liquid. When finish with loading the cleaning solution and press
”OK” the pump will start rotates in the opposite direction of the measurement. The cleaning
solution passes from right to left and falls into the mug for waste milk.
Figure 3: Clean IR
6

6.2 Ultrasonic module cleaning
Cleaning the ultrasonic module requires more time than cleaning the infrared module because different
solutions are used to maintain the ultrasonic sensor in good condition. The cleaning of the ultrasonic
module is similar to the cleaning of the infrared module:
 the mug for waste milk is placed under the ultrasonic module input.
 the mug for cleaning solution is placed under the US peristaltic pump.
Figure 4: Cleaning
 when the <Clean US>button is pressed, the pump starts to rotate in the opposite direction of
the measurement, the cleaning solution/water passes from right to left and falls into the mug for
waste milk.
* the cleaning solution for the US module cleaning should be considered according to the type of
cleaning (daily or periodic).
Figure 5: Clean US
 After cleaning procedure, the ultrasonic module system is filled with air and there should be no
cleaning solution or water residues, the amount of solution/water in the mug for cleaning solution
is adjusted to the pump revolutions, so in the end of the cleaning procedure the mug stays empty
and the pump should suck only air. Do not add extra solution/water in the cleaning solution mug
under the US pump.
7

Methods for daily and periodic clean of the Ekomilk Spectra analyzer’s ultrasonic
module
1. DAILY CLEANING
Daily cleaning is required when:
 The interval between two consecutive measurements is more than half of one hour.
 The daily job is finished.
1.1. Cleaning out when the interval between two consecutive measurements is more than
half an hour.
Steps:
1.1.1. Fill the mug for cleaning solution (below the US peristaltic pump) with clean and warm,
but not hot, water (40 ° C-60 ° C). On the input of the ultrasonic module place the mug
for waste milk, press the button <Cleaning US>, cleaning starts immediately.
1.1.2. Remove the mug and throw away the muddy water. Repeat this procedure several times
until clean water comes out from the Analyzer.
1.2. Cleaning out at the end of a working day.
This procedure prevents formation and collection of fat and ”Milk stone” deposits into the
sensor. Milk stone consists of milk solids, calcium, magnesium, iron, sulfates, etc. Milk and
water mineral deposits become hardened and layered on the sensor and vinyl pipes inner
surfaces, which contact with milk and disturbs the milk analyzer work. Cleaning will be
effective if a reagent which attacks the ”milk stone” is used. We recommend EkoDay to be
used as a daily cleaning solution.
Preparation of EkoDay working solution:
Dissolve 2 g of powder detergent EkoDay in 100 ml distilled or deionized water. The solution
can be used within 7 days after preparation.
Take care this solution does not contact your eyes or skin!
Attention! Use only EkoDay working solution as a cleaning agent. The EkoDay
concentrate can damage your analyzer!
Steps:
1.2.1. First clean the analyzer with pure water as it is described in procedure 1.1. (see above).
Attention! Always clean analyzer with pure water before using the cleaning
agent. Using cleaner EkoDay without first cleaning analyzer for removing the
fats and proteins will result in fixing the ”milk stone” to the surface.
1.2.2. Fill the cleaning solution mug with cleaner EkoDay (25 ° C-40 ° C), place the mug for waste
milk on the input of the US module. Press the button <Cleaning US>, cleaning starts
immediately. Make 5 cycles.
1.2.3. Fill the cleaning solution mug with alkaline clean water, press the button <Cleaning
US>. Make 5 cycles. It’s important to remove all the residues from the cleaning
solution EkoDay!
2. PERIODICAL CLEANING PROCEDURE
To ensure a good work of the Milk Analyzer it is advisory to clean the device at least once a
week strictly performing underwritten procedure. This procedure uses acid cleaner EkoWeek as a
periodical cleaning solution.
Preparation of EkoWeek working solution:
Dissolve 1.8 g of powder detergent EkoWeek in 100 ml distilled or deionized water. The solution
can be used within 30 days after preparation.
8