Bulteh 2000 Ekomilk Spectra User manual

Bulteh-2000 ltd.19, Industrial Area
Stara Zagora 6000, Bulgaria
Tel./ Fax:[phone];
Tel. :[phone];
E-mail: [e-mail]
Infrared-Ultrasonic Hybrid Milk
Analyzer
USER’S GUIDE
Version 3.0
Revision: 01.10.2020

Contents
1 General information 1
2 Knowing the parts 3
3 Safety measures 3
4 Method of work 4
5 Milk samples requirements 5
6 Cleaning procedure 6
6.1 Infrared module cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.2 Ultrasonic module cleaning . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Zero procedure 11
8 Milk analysis 12
8.1 Position of components and work . . . . . . . . . . . . . . . . . . . . . 12
8.2 Startmeasurement ............................ 14
9 Graphical user interface 16
9.1 Mainmenu ................................ 16
9.2 Settingsmenu............................... 16
9.2.1 Calibrate touchscreen . . . . . . . . . . . . . . . . . . . . . . . 16
9.2.2 Firmware update/GUI/OS . . . . . . . . . . . . . . . . . . . . 17
9.2.3 Infrared Eeprom update . . . . . . . . . . . . . . . . . . . . . 17
9.2.4 Printers .............................. 17
9.3 Data.................................... 18
9.3.1 Export Data with USB Flash Drive . . . . . . . . . . . . . . . . 18
9.3.2 Export Data via LAN . . . . . . . . . . . . . . . . . . . . . . . 18
9.4 Connections................................ 21
9.4.1 Wi-Fi ............................... 21
9.4.2 GPRS............................... 21
9.4.3 Bluetooth............................. 21
9.5 Adminmenu ............................... 27
9.5.1 Calibration ............................ 27
9.5.2 Ultrasound corrections . . . . . . . . . . . . . . . . . . . . . . 27
9.5.3 AutoCleaning .......................... 29
9.5.4 Sending results to FTP server . . . . . . . . . . . . . . . . . . 29
9.5.5 Sending results to HTTP server . . . . . . . . . . . . . . . . . 31
9.6 SFTP access to Ekomilk Spectra . . . . . . . . . . . . . . . . . . . . . 32
10 Errors list 33
11 Appendix 1 - Some reason for Ekomilk accuracy and repeatability
deviations 34
12 Appendix 2 - Send last result over serial port(Continuous mode) 36
13 Appendix 3 - Troubleshooting 38
13.1 Filter clogging(infrared only) . . . . . . . . . . . . . . . . . . . . . . . 38
13.2 Cuvette clogging(infrared only) . . . . . . . . . . . . . . . . . . . . . 38
13.3 Sticking of pump’s silicone hose(infrared and ultrasound) . . . . . . . . 39
14 Maintenance 41
15 Guarantee 44

1 General information
Ekomilk Spectra is designed for fast and cost effective control of milk quality - de-
tecting 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 - in-
frared 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 adul-
terants) 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 fre-
quency 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
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Environmental conditions:
Ambient air temperature 15 °C ÷35 °C
Milk temperature 5 °C ÷35 °C
Relative humidity 30 % ÷80 %
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 0,2 % ±0,05 % (abs.)
Melamine 0,1 % ±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.)
Non-Milk Fat 1,5 % ±0,5 % (abs.)
Sweeteners
(sucrose, maltodextrin) 0,9 % ±0,5 % (abs.)
Non-specific adulterants:
In case the milk has been contaminated with
substantial volume of unknown adulterant
the instrument 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
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2 Knowing the parts
1. Infrared module inlet
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
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 your-
self.
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 irri-
tation 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).
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6. EkoClean is a powder substance, which in case of direct contact can irritate res-
piratory 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 min-
utes. Remove contact lenses, if present and continue rinsing. Immediately
call a poison center or doctor/physician.
•After swallowing: Immediately call a poison center or doctor/physician.
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 prepara-
tion 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 6 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 ultra-
sonic 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.
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8. 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
9. Clean the two modules (IR with EkoZero solution, US with water).
10. ”Zero Procedure” (for the infrared module) - see more in section 7.
11. 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.
12. Cleaning
In the end of the working day clean the analyzer well, following the instructions
in section 6.
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 be-
tween 15-25°C. When working with the ultrasonic module the sample tempera-
ture 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.
5

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 mod-
ule 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.
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.
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Figure 3: Clean IR
Full infrared cleaning
The IR module requires additional cleaning. It is recommended to be performed every
14 days, if necessary more often. It is also used in cases when the device will not
be used for a long time (more than a week). For this purpose is use EkoClean (it is
delivered in the form of granules in 2 packages 18 grams each).
Instruction for preparing 500 ml working solution (3.5%):
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 EkoClean package
into the bottle. Stir the mixture up to complete dissolving and then cool it down to
15-25 °C.
Note: The 3.5% EkoClean solution is good for use up to 6 month after preparation if
the container is properly closed after every use. The EkoClean 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.
Start IR cleaning and after the procedure finish, leave the device for at least 24 hours
without get out mugs (IR module must be leaved full with EkoClean solution). Af-
ter that, with the rest of EkoClean in the cleaning solution mug, start the IR cleaning
procedure once more, followed by a final cleaning - fill an empty cleaning mug with
deionized water (35-40 ml) and start required number of IR cleaning procedure (5-6 IR
cleaning procedures) - figure 4.
Figure 4: Clean IR with deionized water
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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 5: 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 accord-
ing to the type of cleaning (daily or periodic).
Figure 6: 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.
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