Manual Operacion Del Equipo Analizador Fa46 - [PDF Document] (2024)

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Contents

I. SUMMARY.............................................................................

II. MAINSPECIFICAITON....................................................................................- 2 -

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

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

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

VI. PROBLEMS ANDTROUBLESHOOTING................................................. -14 -

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

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

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

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

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Warning: The instrument can not provide the designed protectionforoperators who do not follow the right procedures andrequirements given by

the manufacturer.

Warning: All solutions must be handled with care according tothe

labs safety regulation. Please make a reference to the relatedmaterial safety

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

care of hot reagents.

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

professionals are permitted to open the face panel or backcover.

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)$46 User Manual

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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, diaryproduct and

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

medicine, petrochemicals, fiber products, soil and sewageetc.

For example:

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

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

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

weedicide.

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

extract grease from the leather.

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

chromatography (GC) or Liquid chromatography (LC).

2. Principle

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

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

solvents such as absolute ether or petroleum ether, the fat isdried and

weighed. The difference between the vessels weights before andafter 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): 650320700

(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 remindingmessages 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 achievethe wide

temperature controlling range with the high controllingaccuracy.

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

bearing brings the flexible elevating operation.

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

temperature, actual temperature and heating time can bedisplayed

simultaneously on the screen.

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

isolated with the extraction cell.

(9).With the unique air space insulation technique, thetemperature ofinstruments case can be kept normal.

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

efficiency are better.

3. Working Condition

(1). Input voltage: 220V 50Hzair break switch and leakagecircuit 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 apparatusto avoid

electric over stress; independent switch, safety device andreliable grounding

are required.(4). The apparatus should be placed away from bigelectric 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. co*ck 4. Extraction cups

5. Lever 6. Socket 7. Power switch

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IV. Installation

1. Check before Installation

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

in the manual and check if there are any damages. If so, pleasecontact 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 keptbetween

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 theinstrument

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

convenience of operation. The water should meet the followingrequirements:

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

more than 20.

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

operators.

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

electrical equipment nearby and the working place should be freeof vibration,

corrosive liquid and interference from strong electromagneticfield.

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3. Procedures of Installation

Put the analyzer at test table stably. The back of it should be20 centimeters

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

from the analyzer. Air switch, leakage switch, and reliableground 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

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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. Mashand mix the

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

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

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

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

glass vessel.

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

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4. Experiment Procedures

(1). Make one extraction thimble with filter paper (use thepaper rod attached).

Measure 2-5g sample with the analytical balance (to the nearest0.0001g)

and put the sample in the thimble. Put the thimble in theholder, which will be

attached to the instrument by magnet.

(2). Dry a constant weight extraction cup and measure itsweight. Put 60ml

Petroleum ether or absolute ether in the cup and put it on theheating plate.

(3). Push down the lever to seal the extraction cup with thejoint washer.

Move the gliding ball to put the thimble in the cup and makesure that the

sample is fully in the solvent.

(4). Turn on the power and open the condensate. Set up thetemperature and

time.

(5). After a while, move the gliding ball to lift up the thimbleand start the

extraction. When the extraction is completed, close the co*ck onthe

condensate pipe and the solvent will be evaporated, condensed atthe

condenser, and collected in the empty extraction chamber underthecondensate pipe. Then open the co*ck and start the rinsingprocess, during

which the condensed solvent washes final traces of fat from thesample. In

the end, close the co*ck and the solvent will be condensed andcollected in

the extraction. Stop heating.

(6). Cool the heating plate and extraction cup. Pull up thelever and open the

co*ck. Get the solvent in the extraction chamber.

(7). Remove the extraction cup from the heating plate and put itin the drying

oven. Then put the cup in the desiccator to cool down. Measurethe weight of

the cup and work out the percentage of the fat content.

(8). Turn off the power and condensate.

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VI. Problems and Troubleshooting

No. Problem Possible Reason Trouble Shooting

1 No powerThe fuse burnedBad connection of powercord

Replace the fusePlug the power cordagain

2SolventGasleakage

1.Insufficient condensate

2.The rubber ring at the end

of the condensate pipe is old

and can not seal the pipe

tightly

3.The condensate pipe is

broken

Put in more condensateReplace the rubberringReplace thecondensatepipe

3Systemfailure orcrash

Check if there is any strongmagnetic field or electronicfieldaround

Turn off theinstrument,move awaythe source ofdisturbance andrebootthe system

VII. Maintenance

1. The analyzer needs heating up, so good ventilation and heatdissipationare necessary.2. It is recommended that in the certainperiod, the same extraction systemshould use the same solvent toprevent cross-contamination betweendifferent solvents.3. Clean theinstrument with a wet cloth to avoid static electricity; cleantheheating plate with an abrasive cloth to improve heattransmission.

4. Keep the receiving flasks and extraction containers clean.Clean them

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regularly.5. Make sure that there is no seaweed growing in thecooler. If there is, cleanthe cooler with hydrochloric acid orhypochlorous acid (1 mol/L).

VIII. Caution

1. Read the manual carefully and follow the instructions. Theinstrument must

not be operated by any green hand.

2. The instrument must be cleaned with a wet cloth, especiallythe glass

wares. A dry one may generate static electricity and causedanger.

3. The maintenance must follow the instructions strictly.Necessary

replacement of glass wares, parts and wires can be done underthe

instruction of the professtional engineers. But other repairwork must be done

by the professtional engineers.

4. We does not guarantee safety after any unauthorizedalteration is done to

the instrument. Therefore, we does not take responsibility forany loss

thereafter.

5. Cut off the power before opening the instrument and replacingthe fuse

pipe.

6. Handle with care. There are some glass wares in theinstrument.7. If the instrument will not be used for a long time,remove the solvent in the

condensate pipes.

8. It is recommended that in the certain period, the sameextraction system

should use the same solvent to prevent cross-contaminationbetween

different solvents.

9. Mismanagement of organic solvent may cause explosion, so keepthe

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organic solvent away from fire and static electricity.

10. Dont touch the instrument when its heating up.

11. Dont leave the instrument in experiment unattended.

IX. Appendix

This product is covered by the one-year limited warranty sincethe day of

purchase. The limited warranty does not cover the followingsituations:

1. The warranty expired.

2. The instrument is damaged by any inappropriate use.

3. The instrument is damaged by any unauthorizeddisassembly.

4. The instrument is damage by any improper storage.

X. Reference for Temperature Value

The heating temperature should be adjusted according to theroom

temperature and the heat transmission efficiency from theheating plate to the

extraction cups. The dipping rate will be about 3-5dips/ secondin proper

temperature. The following chart can be referred to for theextraction

temperature of some common organic solvents.

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SolventExtraction Temperature

30-60 Petroleum

ether80

Ether 60

Acetone 76

methylene dichloride 60

Hexane 89

Methanol 85Ethanol 98

chloroform 82

benzene 100

Attention: for the organic solvent not listed above, theextraction

temperature can be 20

higher than the boiling point.