MRC MIA-LA Manual de usuario

Operation manual 1/92

MIA-LA

MILK ANALYZER

LCD display –4 lines x 16 characters

Operation manual

Ultrasonic milkanalyser

Operation manual 2/92

Switching Adapter

Input:100 - 240 V ~1.6 A max.

50-60 Hz

Output: +12 V 4.17А min.

Output power: 50 - 65 W

Measurement modes

cow milk

sheep milk

UHT milk

goat milk

buffalo milk

cream

whey

recovered milk

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 milk analyser, information contained in this

manual is subject to change without notice. Contact producer for revisions

and corrections

3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 [email protected]

MRC.1.18

Ultrasonic milkanalyser

Operation manual 3/92

SAFETY INSTRUCTIONS

1. Read this manual carefully and make sure that you understand all the

instructions.

2. For safety purposes the device is equipped with grounded power

cable. If there is no grounded electrical outlet where the device will

be used, please, install such before using the device.

3. Place the device on leveled and stable plate. In case it falls or is

severely shocked it may be 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 switch it off and unplug it from

the electrical outlet. The device has to remain unplugged till the

cleaning completion.

6. Do not disassemble the unit in order to avoid possible electrical

shock. In case of malfunction contact your local dealer.

7. Handle the liquids the device works with carefully, following all the

instructions for their preparation.

8. Place the switching adaptor in such a way as to be protected from

overflow and spillage of liquids.

Ultrasonic milkanalyser

Operation manual 4/92

PARTS AND ACCESSORIES

In the table below the standard delivery configuration of the milk analyser is

listed:

№

Description

Item №

pcs

Ultrasonic portable milk analyzer

LSLA001

1 sample measurement time

50 sec

30 sec

Operation manual

Plastic sample holder

LSLA003

Spare Pipes

LSLA004

12 V DC Power Supply Cable

LSLA005

Alkaline cleaning solution Lactodaily

100 g

Acidic cleaning solution Lactoweekly

100 g

In the table below the milk analyser 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):

Item №

pcs

RS232 Interface Cable - Analyser-IBM PC

LSLA006

Service Pack - CD

LSLA007

10.

pH measuring system

LSLAS009

11.

pH probe with cable and holder

LSLA010

12.

Buffer solution Ph 60 ml

(pH7.00±0.01/20˚C)

LSLA011

13.

Buffer solution pH 60 ml

(pH4.00±0.01/20˚C)

LSLA012

14.

Milk conductivity measuring system

LSLA013

15.

Buffer solution conductivity 50 ml (5.02

(±5%) mS/cm (18±0.1˚C)

LSLA014

16.

Real time clock

LSLA015

17.

High-fat measuring function

LSLA016

Ultrasonic milkanalyser

Operation manual 5/92

18.

ECS POS Serial Printer

LSLA017

19.

12 V Serial Printer Power Supply Cable

LSLA018

20.

RS232 Interface Cable - Milk Analyser –

Serial Printer

LSLA019

21.

Power supply from embedded accumulator

with charger

LSLA021

22.

Plug type

23.

Spare O-ring for the pH probe

24.

USB flash drive option

Ultrasonic milkanalyser

Operation manual 6/92

1. FUNCTION

The function of the milk analyser is to make quick analysis of milk on

fat (FAT), non-fat solids (SNF), proteins, lactose and water content

percentages, temperature (oС), pH, freezing point, salts, total solids,

conductivity as well as density of one and the same sample directly

after milking, at collecting and during processing.

Ultrasonic milkanalyser

Operation manual 7/92

2. TECHNICAL PARAMETERS

2.1. Working modes characteristics:

The program of the milk analyser has four working modes.

2.1.1. Measurement mode milk / dairy product –first type

2.1.2. Measurement mode milk / dairy product –second type

2.1.3. Measurement mode milk / dairy product –third type

These modes have been calibrated on customers’ request for 3 milk types

from the following: 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

indicated on page 2 Measurement modes.

2.1.4. Cleaning

2.1.4.1. Current

2.1.4.2. Final

Note:

For devices with a 5 button keypad on the front panel by pressing the extra

buttons, you can run the following commands: Pressing the button labeled A -

start re-printing the results Pressing the button labeled B - start of flushing

(2.1.4.) These commands are possible when the unit is in Idle mode, i.e.

expecting command for measuring sample.

Ultrasonic milkanalyser

Operation manual 8/92

2.2. Measuring range:

Fat ……………….....................

…………..from 0.01% to 25% (45%*)

SNF ………………………………

...…………………....from 3% to 40%

Density ** ……………………….

……...…….from 1000 to 1160 kg/m3

Protein ………………………….

……………………..from 2% to 15%

Lactose ………………………...

…………………from 0.01 % to 20 %

Water content …………………

……………...……..from 0 % to 70 %

Temperature of milk ……………

from 5oC to 40oC (if measurement is

30 sec, then t° is from 15 to 40°)

Freezing point ****………………

…………..from – 0,400 to –0,700oC

Salts …………………………….

…...…………...………from 0,4 to 4%

PH***……………………………...

…………………..………from 0 to 14

Conductivity*** …………………

……………...…from 3 to 14 [mS/cm]

Total Solids *…………………….

………………………...from 0 to 50 %

* Option, on customers’ request

** Density data are shown in an abbreviated form. For example 27.3 have to

be understood 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 used also when entering data for

samples in working mode Recalibrate, for example:

If the measured sample density is 1034.5 kg/m3, then in the menu for

entering the samples parameters used for calibration, across the parameter

Den = , you have to enter 34.5.

*** pH and conductivity measurements are optional and are embedded in the

device on customers' request.

**** Please, carefully read Appendix Freezing Point.

Ultrasonic milkanalyser

Operation manual 9/92

2.3. Accuracy:

Fat …..………………………………..

…...………………….…...0.06%

SNF …………………………………..

…………...………….…...0.15%

Density ………………………………

………………………..0.3 kg/m3

Proteins ……………………………...

……...……………….…...0.15%

Lactose ………………………………

.…………………………...0.20%

Water content ……………………….

.…………………………….3.0%

Temperature of milk ………………..

.………………………………1oC

Freezing point………………………..

..……...…………………0.005oC

Salts ………………………………...

…..…………...…………...0.05%

PH ………………………………….

………………………………±0.05

Conductivity ……………………….

……………………………...±0.05

Total solids ………………………….

……………………………0.17%

Accuracy values in point 2.3 are in dependence on the correctness of the

corresponding 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

variation of repeatability when the power supply voltage is from +10 to –15%

from the nominal voltage values (220V) have to be no more than 0.8

accuracy according point 2.3. The analyser is used in conditions free of outer

electrical and magnetic fields (except the magnetic field of the Earth) and

vibrations.

2.4 Correct ambient conditions:

Accuracy is guaranteed in case of normal ambient conditions:

Air temperature…………………………

….…from 10oC to 40oC (43oC)

Relative humidity ………………………

……………...from 30% to 80%

Power supply …………………………

…………………...220V (110V)

extent of contamination at normal environmental conditions…………..2

2.5. Dimensions: ………………………….250/290/300 mm, mass 4,0 kg

2.6. Continuous working time:

………….………………………….…...……....non-stop

2.7 Milk sample volume per one measurement:

………………………………..………..15 cm3(= 25 ml)

Ultrasonic milkanalyser

Operation manual 10/92

Fig.1 Front panel

1. pH probe & holder (option)

10. sample holder

2. Printer

11. ss grid

3. Display

12.waste liquid pipe

4-8 Buttons

13. USB flash-drive slot

9. input pipe

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