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电光分析天平(以下简称天平)是一种精密测量物体质量的计量仪器,使用普遍,是厂矿企业、医疗单位和科研单位不可缺少的常用工具之一,如果使用维护不当,就会出现很多故障。天平变动性大是一种常见的故障,产生的原因也较多。 有外界条件的因素:如温度不稳定、外界振动、气流过大、潮湿和灰尘都会引起天平变动性增大。有一次我们下企业检天平,发现天平每次开启时停点都在变,当时一直查不清原因,后来发现天平里面没放干燥剂,放上硅胶后,第二天我们再去检定,天平已恢复正常,变动性在误差范围之内。这说明外界环境对天平的影响是很大的。
Electro-optical analysis balance (hereinafter referred to as balance) is a kind of measuring instrument for measuring object quality accurately. It is widely used and is one of the indispensable common tools for factories, mines, medical institutions and research institutes. If it is used improperly, many failures will occur. A large fluctuation in the balance is a common type of failure and there are many reasons for this. There are external factors such as temperature instability, external vibration, excessive air flow, moisture, and dust that can cause the balance to increase. Once we checked the balance of the company, we found that the stop point changed every time the balance was turned on. At that time, we could not find out the reason. We found that no desiccant was put in the balance, and after putting on silica gel, we went to the next day to check the balance. Has returned to normal, variability within the error range. This shows that the impact of the external environment on the balance is great.