1. What is the heat of the battery valve in the high and low temperature test chamber ? If the spool has the attraction of the garbage electromagnet, because the resistance of the garbage can not completely attract the spool, the magnetic circuit can not be completely closed, the coil inductance is reduced, the current is increased and the heat is generated, and the solenoid valve is hot.
2 , the temperature and humidity of the high and low temperature box is an important factor affecting the performance of the device, which may cause corrosion of mechanical parts, the smoothness of the metal mirror surface, the error or performance degradation of the mechanical part of the high and low temperature box; The aluminum film of the electrothermal constant temperature incubator mirror and focusing mirror corrodes, resulting in insufficient light, stray light, noise, etc., and even the equipment stops working, thus affecting the life of the high and low temperature box, and should be regularly corrected during maintenance.
3, high temperature box to use a certain time, will accumulate some dust inside, the best by a service engineer or periodically turn on high and low temperature box cover under the guidance of its internal work to dust, while the radiator heating elements are re-tightened Solid, clean the sealed window of the optical box, calibrate it if necessary, clean the mechanical parts and lubricate as necessary. Finally, revert to the original condition and then perform the necessary checks, adjustments and records.
4, high and low temperature test box environment of dust and corrosive gas can also affect the flexibility of the mechanical system, to reduce the limit switches, buttons, reliability of the photocoupler, and also one of the causes of corrosion of the aluminum member .
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