Maintenance and repair of high and low temperature test chambers Are you still worried about some of the frequently occurring small problems encountered when using high and low temperature alternating heat and humidity test chambers? In fact, many times we have complicated simple problems, many Technical problems can be easily solved with only a few tips. Below we will summarize the problems that are easy to encounter, and hope to provide you with a more comprehensive high and low temperature test chamber in the process of your use. Maintenance knowledge reference to ensure the normal operation of the instrument.
The high and low temperature test chamber, also known as the environmental test chamber, tests various materials for heat resistance, cold resistance, dry resistance and moisture resistance. It is an essential test equipment for electronics, electrical appliances, communications, instrumentation, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products. It is used to test and determine electrical, electronic and other products and materials for high temperature. The parameters and performance of the low temperature, alternating damp heat or constant test temperature environment changes, and test their performance indicators.
The management personnel of the high and low temperature test chamber must be familiar with the performance and operation procedures of the test chamber, and keep the technical data and instruction manual of the high and low temperature test chamber properly. Ensure the integrity of the high and low temperature test chamber accessories, carefully carry out the past records of high and low temperature test chambers, and make the accounts, cards and objects match. Generally, the high and low temperature test chambers are relatively high. We all recommend that in the case of a relatively benign temperature environment, our experience value is 8 ° C ~ 23 ° C, but with air conditioners and cooling towers, but professional The management, while the units with conditions should be trained to the supplier factory from time to time to obtain a more professional maintenance and repair experience and ability of a process.
Before using the high and low temperature test chamber, you must read the instruction manual, check the protection device according to the requirements, control the ambient temperature, humidity, continuous working time, power supply voltage, etc., pay attention to dust, pollution and corrosion. It is necessary to regularly check the high and low temperature test chambers for electricity. If there is any phenomenon such as diving, smoking or explosion, immediately shut down and report to the competent personnel to prevent damage to the machine due to short circuit and shorten the service life of the machine. Fix the condenser once every 3 months: For the compressor to be air-cooled, the test chamber should regularly repair the condenser fan and decontaminate the condenser to ensure its good ventilation and heat transfer performance; In addition to ensuring the inlet pressure and inlet water temperature, the corresponding flow rate must be ensured. The inside of the condenser should be cleaned and descaled regularly to obtain its continuous heat transfer performance. Periodically clean the evaporator: cleaned by the test sample The grades are different. Under the forced air circulation, a large number of small particles such as dust will be condensed on the evaporator, which should be cleaned regularly. The circulating fan blades and the condenser fan are cleaned and balanced: the high and low temperature test chamber is similar to the cleaning evaporator, because the test The working environment of the box is different. The circulating fan blades and the condenser fan will condense a lot of small particles such as dust, which should be cleaned regularly.
If the high and low temperature test chambers fail, they should be repaired by professionals. The management personnel of the high and low temperature test chambers should study hard and improve the management, repair and maintenance levels. The high and low temperature test chambers shall be specially reserved by special personnel, and the personnel and other personnel shall not be allowed to operate at will, and under normal circumstances, they shall not be moved at will. If the equipment needs to be relocated, it should be carried out under the guidance of the technical personnel of the equipment to avoid unnecessary damage or damage to the equipment. The high and low temperature test chambers should be notified to the instrument management personnel when they leave and return to the laboratory. After returning from the high and low temperature test chambers, the performance of the high and low temperature test chamber storage personnel (technicians) is checked before use, and the performance indicators are satisfactory. The result can be used later.
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