MRC FA-46 Manuale utente

Contents

I. SUMMARY .............................................................................

II. MAIN SPECIFICAITON....................................................................................- 2 -

III. STRUCTURE....................................................................................................- 4 -

IV. INSTALLATION................................................................................................- 5 -

V. OPERATION ......................................................................................................- 7 -

VI. PROBLEMS AND TROUBLESHOOTING.................................................- 14 -

VII. MAINTENANCE............................................................................................- 14 -

VIII. CAUTION......................................................................................................- 15 -

IX. APPENDIX......................................................................................................- 16 -

X. REFERENCE FOR TEMPERATURE VALUE............................................- 16 -

Warning: The instrument can not provide the designed protection for

operators who do not follow the right procedures and requirements given by

the manufacturer.

Warning: All solutions must be handled with care according to the

lab’s safety regulation. Please make a reference to the related material safety

data sheet. Wear the lab-gown, goggle and rubber gloves all the time. Be

care of hot reagents.

Warning: Be aware of the risk of electric shock. Only the trained

professionals are permitted to open the face panel or back cover.

)$46 User Manual

- 1 -

I. Summary

1. Application

)$46 Fat Analyzer, designed in accordance with GB/T 14772-2008, can

be used not only in measuring the fat content in food, diary product and

feedstuff, but also in testing the soluble organic compound in detergent,

medicine, petrochemicals, fiber products, soil and sewage etc.

For example:

(1). To test the fat content in the food, feedstuff, grain, and seed.

(2). To extract the fat from the sewage and mud.

(3). To extract the semi-volatile organic compound such as pesticide and

weedicide.

(4).To extract plasticiser from plastics; to extract colophony from the paper; to

extract grease from the leather.

(5).To perform the pre-digestion process to the solid samples for the Gas

chromatography (GC) or Liquid chromatography (LC).

2. Principle

Based on the principle of Soxhlet extraction, )$46 uses the weighing

method to obtain the fat content. After being extracted from the sample by

solvents such as absolute ether or petroleum ether, the fat is dried and

weighed. The difference between the vessel’s weights before and after the

extraction is the fat content.

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II. Main Specificaiton

1. Technical specification

(1). Wide temperature controlling range:

Room temperature: +5~280 ℃; Accuracy: ±1 ℃

(2). Heating power: 1000 W

(3). Operation voltage: 220V

(4). Frequency: 50/60 Hz

(5).As many as six samples can be tested at the same time.

(6). Volume of solvent vessel: 80 ml;

Sample amount: 0.5~15 g (regular amount: 2~5 g)

(7). Solvent recovery rate: ≥80%

(8). Testing scope: 0~100%

(9). Dimension (mm): 650×320×700

(10). Weight: 35 Kg

2. Features:

(1).5.1 inch LCD and controlling system with microprocessor

(2).Overheating warning and alarm function are available.

(3).The audible, visual warning signals as well as the reminding messages on

the screen are used in the alarming system.

(4).Both timing and time recording functions are available.

(5).The all-in-one metal heating block is utilized to achieve the wide

temperature controlling range with the high controlling accuracy.

- 3 -

(6).The elevation connection using the transmission technique of the linear

bearing brings the flexible elevating operation.

(7).All information can be clearly displayed on the screen. The preset

temperature, actual temperature and heating time can be displayed

simultaneously on the screen.

(8).The safe operation is ensured because the electric circuit is completely

isolated with the extraction cell.

(9).With the unique air space insulation technique, the temperature of

instrument’s case can be kept normal.

(10). Compared with the traditional soxhlet extraction, its speed and

efficiency are better.

3. Working Condition

(1). Input voltage: 220V 50Hz；air break switch and leakage circuit breaker

are required.

(2). The apparatus should be placed where water, drain basin, electric pocket

are available.

(3). Power supply should meet the requirements of the apparatus to avoid

electric over stress; independent switch, safety device and reliable grounding

are required.

(4). The apparatus should be placed away from big electric equipment to

avoid strong magnetic field.

(5). Ensure the good ventilation of the laboratory.

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III. Structure

Components

1.Gliding balls 2. Condenser pipe 3. Cock 4. Extraction cups

5. Lever 6. Socket 7. Power switch

- 5 -

IV. Installation

1. Check before Installation

After the analyzer is unpacked, check the analyzer and all the parts specified

in the manual and check if there are any damages. If so, please contact the

manufacturer in time (please keep the damaged parts).

2. Conditions for Installation

(1). This analyzer should be placed away from direct sunshine, moisture,

heat and coldness,Generally room temperature should be kept between

10 ℃~ 28 ℃.

(2). This analyzer should be placed near water source and sinks, and electric

socket should be available at the site. The distance between the instrument

and water tap (or the power socket) should not be over 1 meter to ensure

convenience of operation. The water should meet the following requirements:

water flow 1-2 liter per minute, adequate water pressure and temperature no

more than 20 ℃.

(3). The sink should be at least 10cm lower than the water outlet of the

instrument to ensure free flow of the water.

(4). The power supply should meet the requirement. Ground line, separate

power switch and right fuse are necessary to make sure the safety of the

operators.

(5). This analyzer should be installed at the place where there is no big

electrical equipment nearby and the working place should be free of vibration,

corrosive liquid and interference from strong electromagnetic field.

- 6 -

3. Procedures of Installation

Put the analyzer at test table stably. The back of it should be 20 centimeters

away from the wall, and the socket should not be more than 1 meter away

from the analyzer. Air switch, leakage switch, and reliable ground line

should be equipped. See figure 1.

Figure 1

(1). Condensate inlet (connect to the water tap)

(2). Condensate outlet (connect to the sink)

)$46 User Manual

- 7 -

V. Operation

1. Reagent, equipment and tools

(1). Ether (analytical pure), petroleum ether (analytical pure, boiling range

30~60 ℃)

(2). Analytical balance (0.0001g)

(3). Filter paper with diameter of 90mm

(4).Graduated cylinder (100ml)

(5). Drying oven

(6). Grinder

(7). Mortar and pestle

(8). Desiccator

2. Pre-processing of Sample

2.1 Pre-processing of Food Sample

2.1.1 Solid sample: Get at least 200g of typical sample. Mash and mix the

sample well, and put it into the closed glass vessel; for those that are not

easy to mash, cut them into small granules and then put them into the closed

glass vessel through a circular sieve ( holes 1.0 mm in diameter).

2.1.2 Powder sample: get at least 200g of typical sample( the powder should

be mashed well if particles of the powder are big). Mix well, and then put into

glass vessel through a circular sieve ( holes 1.0 mm in diameter).

2.1.3 Paste sample: get at least 200g of typical sample, mix well, and put into

glass vessel.

2.1.4 Solid and liquid sample: get at least 200g of typical sample according to

Indice

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