Microscope--Microscopes are made up of precise mechanical and optical lenses. Due to the different thermal expansion coefficients of various materials, microscopes cannot be exposed to the sun, and they cannot be placed near the stove or the heat. Can only be stored indoors, its working temperature range is generally 5 ~ 40℃.
Wipe
(1) wipe the mechanical device
Mechanical device such as stains, can be used to clean the soft cloth wipe; If wipe not, can brush lens paper or fine silk cloth dips in a point one toluene to wipe. It should be noted that chemical crystals such as alcohol and ether should not be used to avoid corrosion of the paint on the surface of the device.
(2) wipe the optical lens
General use blow first, brush after, wipe method again. To blow is to blow a balloon (or ear ball) off the surface of the lens attachment. But you can't blow directly through your mouth. When blow not to come off, usable and clean special clean wool brush is brushed gently. When dirt still exists on the lens surface after treatment by the above two methods, wipe it gently with mirror paper dipped in a little xylene.
If found that the lens moldy long fog, you can use the mirror paper dipped in a little anhydrous alcohol and ethyl ether mixture to wipe, but the liquid should not be too much, stay time to be short, so as not to infiltrate the lens to cause corrosion.
Oil lens every time after use to timely wipe, first with dry mirror paper wipe once or twice, remove most of the medium oil, then with xylene drops wet mirror paper wipe twice, finally with dry mirror paper wipe once.
Freezer--Freeze-drying machine is widely used in the Lab medicine industry. It is used to precool the air at the rear end of air compressor, remove a lot of water from the air, and reduce the load of molecular sieve purifier. It has the characteristics of small size, low energy consumption and good operation stability. The routine maintenance of the dryer plays an important role in improving the machine performance and production efficiency
(1)After the refrigerator failure must thoroughly find out the reason. If necessary, please professional company to find out and eliminate.
(2) Freeze drying mechanical and electrical machine burned its paint leather and other impurities will be throughout the refrigeration system, in the maintenance of the system to thoroughly clean. The filtration system of the whole system should be thoroughly checked and replaced if necessary. Bad handling will threaten the long-term operation of the compressor, and may even cause irreversible consequences.
(3) After the overhaul of the compressor to dehumidify the system. It is recommended to use the dry nitrogen system for drying and then vacuum treatment. The lower the vacuum degree is, the better the later operation of the system is, and the higher the efficiency is. Most failures of refrigeration systems are caused by leakage in the system.
Pressure Steam Sterilizer--Autoclave sterilizer is a fast and reliable sterilizing equipment which USES saturated steam to sterilize articles.
1. Wipe the surface of sterilizer door and instrument every day, and clean the floor of sterilizer room at least once.
2. Clean the impurities in the filter at the discharge opening of the sterilizer every day to prevent impurities from entering the exhaust pipe during the operation of the sterilizer.
3. Before daily operation, check whether the door seal of the sterilizer is smooth and in good condition, and there is no discontinuity or damage.
4. Check the accuracy of the instrument pointer every day, and observe whether the temperature and pressure indicators are in the "0" position after the sterilizer stops running; Observe whether steam, water and other medium pipelines and valve parts leak; Observe whether the indicator light of sterilizer is in good condition; Once the above parts appear problems, should not use the sterilizer, after maintenance and repair use.
5. Clean and clean the sterilizer thoroughly every week.
6. Clean the outside of the sterilizing equipment every quarter to avoid dust accumulation and shorten the service life of the air filter. Should avoid the components and water contact, once the wet water should be dry before connected to the power.
7. Check whether the socket and connector of each connection are loose every quarter, and the loose ones should be plugged tightly.
Clean the surface of the relief valve every 6 months.
9. Check and clean the steam line filter once a week and record the results.
10. The sterilizer shall be inspected annually, and the safety valve, pressure gauge and temperature gauge shall be validated at least once a year. The inspection results shall be recorded and retained. Air filters should be replaced periodically.