Eight problems that need to be paid attention to during the installation and use of high-precision weightlessness scales

Among the brand types of weightlessness scales, high-precision weightlessness scales can reach an accuracy of 0.4% in the measurement of fly ash. The accuracy of weightlessness scales is inseparable from paying attention to details in the process of installation and use. I will introduce you today Regarding the accurate operation of the high-precision weightlessness scale, what issues need to be paid attention to during installation and use? 1. The installation and fixation of the weightlessness scale is effective and reliable: since the load cell is an elastic deformation element, external vibration will interfere with it. The most taboo of the high-precision weightlessness scale during use is the impact of environmental vibration, so when installing When weighing the scale body, it is necessary to ensure that the scale body is not affected by vibration as much as possible; 2. There should be no air flow in the environment: in order to improve the weighing accuracy, the selected sensor of the weightless scale with high precision requirements is very sensitive, and any wind and grass will be affected. The weighing sensor has some influence, so controlling the indoor airflow in the installation environment of the weightlessness scale is also one of the important ways to ensure the normal operation of the high-precision weightlessness scale; 3. The connection of the scale body: the upper and lower soft connections should be light and soft to avoid loading. The lower equipment interferes with the weightlessness scale. The most ideal material used recently is smooth and soft silk; 4. The distance between the silo and the hopper: the shorter the connection distance between the large silo and the upper hopper, the better, especially For those materials with strong adhesion, when the connection distance between the large silo and the upper hopper is longer, the more materials adhere to the pipe wall. When the material on the pipe wall adheres to a certain degree, once Falling down is a very big interference to the weightlessness scale; 5. Minimize the connection with the outside world: Any external weight acting on the weightlessness scale body must be kept constant, the purpose is to reduce the influence of external forces on the scale body; 6. The feeding speed should be fast: in order to make the feeding speed as fast as possible, we must ensure the smoothness of the feeding during the feeding process. For materials with poor fluidity, in order to prevent them from bridging, the best solution is to add mechanical agitation in a large silo. The biggest taboo is air flow to break the arch, but the agitation cannot be running all the time. The most ideal solution is to maintain the mixing and feeding process. Consistent, that is to keep synchronized with the replenishment valve; 7. The lower limit value of the replenishment and the upper limit value of the replenishment should be set appropriately: the guiding idea of u200bu200bthe setting is that the bulk density of the material in the hopper between these two quantities is basically the same . This can be obtained by observing the frequency change of the frequency converter. When the bulk density of the materials in the hopper is basically the same, the frequency of the frequency converter basically does not change much. Setting the lower limit value of the feed and the upper limit value of the feed properly can improve the control accuracy during the refill process, because the weightlessness scale is under static control during the refill process. If the frequency of the inverter before and after the refill can be maintained basically No change, the measurement accuracy of the replenishment process is basically guaranteed. In addition, under the condition of ensuring that the bulk density is basically the same, try to reduce the number of feeding times, that is, try to fill more materials each time. The two contradict each other and must be considered in an overall manner. This is also the key to ensuring the accuracy in the replenishment process; 8 The material delay time setting should be appropriate: The guiding idea of u200bu200bthe setting is to ensure that all the materials have fallen on the scale body, and the shorter the setting time, the better. As mentioned earlier, the weightlessness scale is under static control during the feeding delay time, so the shorter the time, the better. This time can also be obtained by observation. During the debugging period, you can first set the delay time to be longer, and observe how long the total weight on the scale body can not fluctuate (will not become larger) after each replenishment is completed. If it stabilizes (the total weight on the scale body decreases steadily), then this time is the appropriate delay time for refilling. Are you satisfied with this article about what problems should be paid attention to during installation and use of high-precision weightlessness scales? I hope this article is helpful to everyone.