The decoration workers sometimes need to overhaul some instruments and meters. In order to carry out the overhaul correctly and effectively, to ensure the quality and safety of overhaul, to avoid detours during the overhaul, and to quickly eliminate circuit failures, you must abide by the overhaul principles. That is, think first, then start, power first, then parts, first outside, then inside, first static, then first, simple first, then complex, first common, then others. These are the principles generally followed by assembly workers during maintenance. The six principles are analyzed and explained below: 1. Think first and then start: In the maintenance, you must pay attention to the calm analysis and avoid blind hands-on. The thoughts advocated here are based on purposeful thoughts. To think first and then to do it is to start on the basis of understanding the situation and making the necessary analysis and judgment by comprehensively applying the theory. 2. Power first, then components: Power is the source of work for the operation of instruments and meters. Components are indispensable conditions for the normal operation of instruments and meters. Power sources and components are not normal, and instruments and meters cannot work normally. At the same time, the power supply voltage is abnormal, too high or too low, and the components are short-circuited or open-circuited, which may damage the instrument and cause an accident. In addition, the power supply and components have many failures during use, and the removal is relatively easy. Therefore, the repair should be based on the principle of first power supply and then components. When overhauling the zirconia oxygen content analyzer, while avoiding vibration, you must first cut off the power, so as to effectively protect the safety of the zirconium tube. 3. First out then inside: the so-called outside refers to the exposure outside the instrument Parts, such as wiring, plug-in components, etc. The so-called internal refers to the interior of the instrument. The reason why it is outside first then inside is: external inspection and repair are relatively simple. If the exterior can be repaired, you do not need to go deep into the interior to avoid detours. At the same time, it is also possible to prevent the components from starting and disassembling to reduce the quality, or even damage the instruments and meters due to improper disassembly; in addition, instruments and meters that are generally exposed to the outside are also easily damaged. 4. Static first, then dynamic: static, refers to the inspection and repair of the instrumentation without power; dynamic, refers to the inspection and repair performed after power is applied. The reason for moving first and then moving is to ensure personal safety and instrumentation safety, and at the same time to eliminate some faults in advance. However, it must be stated that static and dynamic are often alternated flexibly during the maintenance process. 5. Simplify before complex: Simplified refers to factors that are easy to inspect, measure, and repair; complex refers to factors that are more difficult to inspect, measure, and repair. The reason is that there are many instrument parts and components, the structure of the circuit is relatively complicated, and there are many factors that cause failure, but there must be simple and easy to troubleshoot and complicated and difficult to troubleshoot. From the principle of easy to difficult, easy faults can be quickly eliminated, and complex faults and hard-to-repair faults can be isolated, which makes it difficult. At the same time, it can also prevent unnecessary disassembly and unloading. Avoid detours and delay the maintenance time. 6. Common problems before others: Common diseases refer to places where instruments and meters are often prone to failure, such as batteries, resistance-capacitance components, accessories, etc. Therefore, the common faults of the instrumentation should be checked first during the maintenance process. The above principles are related to each other, and must be considered comprehensively during the maintenance process, and analyzed and used flexibly. Of course, in the overhaul, it is not enough to master the principle, but also the method, and the specific problems should be dealt with specifically. For the products of our company, you can directly contact the engineers of our company.
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