The centrifuge is simple and practical, has high measurement accuracy, fast result and long service life, and is a simple and practical instrument. Proper use can better reflect the efficiency of the instrument.
First, use: The centrifuge is placed on the workbench smoothly, and the control part is facing the operator.
Second, constant temperature: turn on the three-hole power supply, and then turn on the constant temperature switch. At this time, the constant temperature switch light is on, the centrifuge will be warmed up at a constant temperature, and the thermostat switch light will be off, indicating that the machine can work normally. The temperature will be constant between 50 ° C and 60 ° C during operation.
Third, the assembly of milk fat meter: First check whether the milk fat meter is intact, the weight of the milk fat meter is basically the same, after confirming, first add 10 ml of sulfuric acid with a density of 1.820-1.825, then add 11 ml of fresh milk (Note: add milk It should be carefully added along the pipe wall and not mixed with sulfuric acid), and then add 1 ml of isoamyl alcohol with a density of 0.8090-0.8115. At this time, the three sample liquids are added (if the capacity of the milk fat meter is large, a little distilled water can be added). Replenish the volume, in order to adjust the scale surface for easy counting). Then insert a rubber stopper to shake, and the sample liquid in the cream meter is thoroughly mixed to become brownish red. (Note: If the sample liquid is mixed and turned into black, it means that the sulfuric acid concentration is too high, and it needs to be diluted with distilled water to the corresponding density.) After mixing, the cream meter is placed symmetrically into the centrifuge centrifuge tube, and the plug part is facing down. Cover the cover.
4. Work: Turn the time switch to the terminal and start centrifugation for 5 minutes. If the centrifuge is stopped immediately after completion, the brake switch may be pressed several times to stop (the brake switch cannot be pressed for long, otherwise it will reverse), open the upper cover. , pull out the cream meter, adjust the rubber plug, and read the fat number.
5. After the work is completed, unplug the power cord for next use.
Precautions
1. The instrument is a three-in-one socket using a 220V single-supply power supply. In order to ensure that the safety grounding terminal is grounded, there is a danger of electric shock.
2. During the operation or operation of the centrifuge, once the sample solution in the creamer is spilled into the centrifuge or the centrifuge disc and tube inside the machine, it must be cleaned immediately, otherwise it will cause corrosion of various components.
3. The centrifugal device is equipped with an over-temperature protection device. Once the temperature is too high, the whole machine will be powered off and will not work. Only when the temperature drops to the normal working temperature can it work.
Precautions
1. The centrifuge is equipped with a set of anti-machine overheat protection switch. The purpose is to burn the chassis and electrical components once the internal thermostat controller is damaged and the internal temperature is too high. When the internal temperature exceeds 60 °C, the overheat protection switch will also automatically shut off the power supply. When the internal temperature drops below 50 °C, the power is automatically turned on. In this case, the internal temperature should be re-adjusted to the normal range according to the instruction manual, otherwise it can only work intermittently.
Note: To know if the overheat protection switch automatically cuts off the power supply, it can be judged from the centrifuge thermometer (whether the temperature exceeds 60 °C per year)
2. When the sample is centrifuged, if the vibration of the centrifuge is large, the base motion is large, which is probably caused by the equal amount of cream placed symmetrically, or the screw on the top of the centrifugal disk is loose. Symmetrical placement or configuration of the same size and equivalent amount of cream should be selected, or loosened screws should be tightened.
3. During the use of the centrifuge, avoid the sulfuric acid or its mixture with the breast on the centrifuge disc on the surface of the body. Once it happens, it should be wiped clean immediately.
4. In general, the centrifuge tube is not easily extracted from the centrifuge disc. However, when the temperature is raised to the normal working temperature (50 ° C - 60 ° C), the centrifuge tube can be easily withdrawn from the centrifugal disk.
The new Geber centrifuge is designed to absorb and eliminate the advantages and disadvantages of the circle and to digest and absorb foreign
Advance technical and international standards.
1. The outer shape adopts the square shape to make the instrument more stable, and the inclined position fixed centrifuge tube is adopted. This makes it much better in terms of volume and safety than using a standing pendulum centrifuge tube. And greatly reduce the cost and reduce the burden on the user.
Second, the use of advanced automatic electronic temperature and time display circuit, its control chip is the latest development in the 21st century, making temperature and time control more accurate, and shortening the measurement time greatly improves the measurement accuracy. Making the test results closer to "Lodz
- Godre's method.
Three high-quality aluminum alloy centrifugal discs and one-time high-strength seamless crimping centrifuge tubes. Strong acid resistance and good dynamic balance.
Four products are suitable for standard requirements
National standard GB5409-85 GB-541385 and international standard ISO2446.
Five can do 8 samples at the same time
The company's main stainless steel water collector, tank bottom weld vacuum test box, reading instrument, eight-stage air microbial sampler, relay comprehensive tester, dual-wavelength scanner, coating thickness gauge, soil mill, tempered glass surface Flatness tester, sound sensor, portable electric water level gauge, network mouth flow meter, corrosion rate meter, portable scratch tester, freezing point tester, water quality tester, online ammonia tester, coating thickness gauge, coating Thickness gauge, soil pulverizer, digital thermometer, gas sampling pump, ceramic impact tester, automatic crystallization point tester, drug freezing point tester, reed switch tester, constant temperature water bath, gasoline root turn, gas Sampling pump, tempered glass tester, water quality tester, PM2.5 tester, inhalable particulate matter detector, high frequency heat sealing machine, strain control triaxial instrument, milk somatic cell detector, helium gas concentration detector, soil moisture conductance Rate tester, field strength meter, collection box, color ratio tester, capillary water absorption time measuring instrument, redox potentiometer vibrometer, carbon monoxide carbon dioxide detection , CO2 analyzer, oscillopolarograph, slime content tester, car starter power supply, automatic potentiometric titrator, portable thermometer, zirconia analyzer, reed switch tester, precision conductivity meter, TOC water quality analysis Instrument, microcomputer plasticity tester, wind direction station, automatic spotting instrument, soil oxidation reduction potentiometer, digital thermometer, portable total phosphorus tester, corrosion rate meter, constant temperature water bath, residual chlorine detector, free expansion rate meter , centrifuge cup, concrete saturated vapor pressure device, particle strength tester, Gauss meter, automatic film coating machine, safety valve grinding tool, weather station, kinesthetic orientation instrument, dark adaptation instrument, smell collector, rain gauge, four in one Gas analyzer, emulsion concentration meter, dissolved oxygen meter, temperature measuring instrument, thin layer planking device, temperature recorder, aging meter, noise detector, constant temperature and humidity chamber, split resistivity tester, initial viscosity and holding viscosity Tester, infrared carbon dioxide analyzer, hydrogen lamp, kinesthetic orientation instrument, constant temperature animal operating table, cooling fan, grease acid value detector, viscosity meter, colony counter, Weather station, rain gauge, Kjeldahl nitrogen analyzer, fluorescent whitening agent, flat grinding instrument, fuel cell characteristic comprehensive tester, dissolving instrument, online PH meter, on-site dynamic balance meter, high vacuum valve, ultrasonic liquid level transmitter , Abbe refractometer, water quality rapid detector, sludge ratio group measuring device, scanner, nitrogen blowing instrument, personal dose alarm device, the company adhering to the "customer first, forge ahead" business philosophy, adhere to the "customer first" The principle is to provide quality services to our customers. Welcome patrons!
Guangzhou serika Technology Co., Ltd. , https://www.serikamedical.com