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In industrial applications, pressure gauges play a vital role as important monitoring tools. However, the occurrence of pointer failure may seriously affect its measurement accuracy and reliability. When the pressure gauge pointer breaks or bends, appropriate measures must be taken to repair and maintain it to ensure the normal operation of the equipment.
There are many reasons for the breakage of the pointer, the most common of which are improper material selection and improper operation. If the pointer breaks due to the material being too soft or insufficiently rigid, the manufacturer should re-examine the material selection criteria and give priority to the use of high-rigidity and impact-resistant materials for the manufacture of the pointer. This fundamental solution to the problem can effectively reduce the incidence of subsequent failures. For the breakage of the pointer caused by improper operation, the company should strengthen the training of operators to ensure that they are familiar with the operating procedures, especially during the pressure relief operation, the principle of slowness and stability must be strictly followed to avoid damage to the pointer due to rapid rebound. In addition, it is also important to reasonably select the installation location of the pressure gauge and maintain a safe distance from the surrounding environment to prevent the pointer from being damaged by collision.
When the pointer is bent but not broken, it can be adjusted by professional calibration tools. During the calibration process, the applied force and angle should be carefully controlled to avoid secondary damage. After the calibration is completed, the pressure gauge must be recalibrated to ensure the accuracy and reliability of its indication.
Inflexible pointer indication is also a common fault, usually caused by excessive friction between the pointer and the dial or wear of the pointer shaft. For the problem of excessive friction, it is recommended to regularly clean impurities between the pointer and the dial, such as dust and oil, to reduce friction resistance. If the pointer shaft is found to be severely worn, a new pointer shaft should be replaced in time. During the replacement process, be sure to ensure the accuracy of the installation to ensure the smooth rotation of the pointer.
In addition, uneven gaps between the pointer and the dial can also cause pointer failure. Too small a gap will cause the pointer to be hindered when rotating, affecting the accuracy of the measurement; while too large a gap may cause the pointer to shake and affect the stability of the reading. To address this problem, the installation position of the pointer can be carefully adjusted through precision adjustment tools to make the gap between it and the dial uniform. After the adjustment is completed, it is necessary to check the rotation of the pointer again to ensure that it can indicate the pressure value normally and flexibly.
In daily use, it is very necessary to regularly inspect and maintain the pressure gauge. Clean the surface and interior of the pressure gauge regularly to prevent the accumulation of dust and impurities to ensure the normal operation of the pointer. At the same time, pay attention to the use environment of the pressure gauge and avoid using it under adverse conditions such as high temperature, humidity or strong magnetic field, so as to extend the service life of the pressure gauge and reduce the occurrence of pointer failure.