There are many types of analytical instruments, and there are many faults. Then, do you have mastered the maintenance methods of analytical instruments? The experts of Instrument World World Network below will introduce the maintenance methods commonly used by analysis instrument manufacturers.
(1) Static measurement method This is mainly through the multimeter to measure the DC operating voltage phase current in the line to determine the fault. Late is a common method of troubleshooting, which is especially important for testing linear circuits.
(2) The dynamic observation method through the demonstrator to observe the waveform of the point, so as to find the fault phase troubleshooting method is called dynamic observation method.
(3) The tracking method finds some clues in the process of finding faults. The method that follows the clues is called the tracking method.
(4) In the process of finding faults, the partitioning method gradually narrows the scope of faults by unplugging part of the circuit board, pulling out part of the circuit board, or disconnecting the circuit board. Finally, the method of isolating fault points is called segmentation. law.
(5) Replacement method The method of determining the fault within a certain range is called replacement method by replacing the electric wire, circuit board, electron tube or other parts.
(6) During the process of searching for faults, the simulation method can determine the fault method by testing the same points of the fault-free instrument and the instrument, respectively, and determine the fault method, which is called simulation method.
(7) In the process of searching for faults, heuristics, such as measurement and analysis, can cause such faults for several reasons. At this time, he can try to use a method to eliminate the fault first. If it is ineffective, then use another method. One method to test for troubleshooting is called heuristics.
(8) The local heating apparatus malfunctions due to the increase in humidity, and is usually excluded by local heat. For example, one of the instruments does not work properly at a temperature of 40°C, but works normally when the temperature drops. The team can restore the instrument to work at room temperature and use a hot air blower or electric iron to localize it to the pool and find the fault. This is called local heating.
The above is a summary of the maintenance methods commonly used by analytical instrument manufacturers. Everyone can learn more.
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