MRC FA-46 Bedienungsanleitung
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
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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, 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.
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(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
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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.
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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
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