● After unpacking, users and maintenance personnel should carefully study the instruction manual of the random belt and master its structure, principle, function, operation points, maintenance and maintenance requirements;
● Keep the instrument clean inside and outside, and pay attention to moisture-proof, corrosion-proof and interference-proof;
● Precision instruments should be handled with care, and optical components should be wiped with mirror paper instead of wet cloth;
● Dust off the electronic circuit board and check the grounding of the instrument;
● Mechanical and transmission parts shall be free of rust and dirt, and lubricated and oiled. ?
(2) Maintenance methods of common instruments:
● According to the characteristics of the instrument, it belongs to heat exchange, so it is necessary to check the vent regularly and clean up the dust and burning debris in time;
● If it belongs to hydraulic machinery or solution containing medium, check the discoloration or interface of the medium regularly, and change the medium in time or increase or decrease it appropriately;
● If it is a wearing part, it should be cleaned and replaced in time, such as the gasket of gas chromatograph;
● For instruments with water circulation, it is necessary to prevent insufficient water flow due to the accumulation of dust and floating objects, thus affecting the cooling effect or affecting the performance of the instrument due to the increase of conductivity;
● For instruments using air source, check the air connector with soapy water regularly to prevent air leakage from causing accidents or affecting the accuracy of the results; ?
(3) Maintenance methods for instruments with low frequency of use:
● Electronic instruments and analytical instruments should be electrified and preheated regularly to prevent electrolytic capacitors from deteriorating, and electronic circuit boards from local short circuit or poor performance, which will affect the use effect of instruments;
● For instruments that use dry batteries, the batteries should be taken out and stored when they are not used for a long time to prevent the batteries from rotting and damaging the electrodes;
● Microammeter should be stored after short circuit at the input end, and sensitive ammeter should be stored after the input coil is locked;
● Always check the dry silica gel of the instrument to prevent the internal parts from being affected by moisture, which will affect the stability index of the instrument;
● The light channel should be regularly dusted, decontaminated and mildew-proof. The answer comes from