Including all measuring instruments, including gas meter, the most common inspection method is direct observation method, using vision, smell, touch, etc., to see whether the instrument has burnt smell, spots, noise.
    Generally, the burned out instrument will have an unpleasant smell, it is easy to smell, and if the chip is short circuit, there will be a hot feeling, the broken place can be seen by the eye, and sometimes the abnormal noise of the machine can be heard, which may be the instrument has a problem. In addition, you can touch it with your hand, where it is hot, where it is loose, etc. It should be noted that the intuitive method sometimes feels is not the root cause of the failure, and the damage and deterioration of some components and virtual welding do not have any signs on the appearance, which can not be judged by naked eye observation.

    As a precision parts size pneumatic measurement equipment manufacturers, focusing on micro-precision, R & D and production of digital display pneumatic momentum meter, a variety of models, quality assurance, manufacturers direct sales, price concessions.