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What problems are prone to occur during on-site calibration of magnetic flap level gauges

磁翻板液位计现场调校中容易出现哪些问题?磁翻板液位计厂家带您了解:

磁翻板液位计是一种在大型罐区非常常见的一种液位测量仪表,它是根据浮力原理制作,磁翻板内浮子在主体内(与容器相通),随着被测介质液位的升降而上下浮动,利用内浮子的磁性组件吸引翻板内的指示器来直接醒目地指示出被测容器内的液位变化。磁翻板液位计可直接用来观察各种容器内介质的液位高度。非常适用于石油、化工等工业领域的液位指示,用于各种塔、罐、槽、球型容器和锅炉等设备的介质液位检测,因为磁翻板液位计具有结构简单,观察直观、清晰,不堵塞、不渗漏,安装方便,维修简单的优点,所以特别受到用户的喜爱。

磁翻板液位计是理想的液位检测仪表,以达到就地显示液位的数值,在磁翻板液位计产业制造过程中要对产品零件、部件和总成的要求质量进行严格的检测和控制,因而先进适用的测量技术和仪器是需要的条件,仪表产业发展信息技术高速发展的背景下及其测量控制技术得到日益广泛应用,给仪器仪表行业的快速发展提供了良好契机,现代化的科技使人们的距离大大的缩短,增强其吸引力,发展方向是大幅提高速度、简化安装和调试的复杂性、扩展无线功能以及发展技术。

磁翻板液位计产业面对产品的稳定性、可靠性和适应性要求不断提高;技术指标和功能不断提高;在产值和市场两个方面都占据着磁翻板液位计与测量控制总体的一半,是仪器仪表与测量控制体系的两大支柱。仪表设备多种多样,在生产活动中发挥了重要作用,不同的液位计有着不同的作用,可广泛应用于各种容器内液面和界面高度的连续测量。

现场调校中偶尔会发现浮子上下移动不够灵活。这大多是由于安装不当引起的,磁翻板液位计此时要注意上下法兰的中心是否在一条线上,是否与水平面垂直。一般来说,与水平面夹角不小于87度,如果偏差较大,可能会影响浮子的顺利移动。

磁翻板液位计容易出现哪些问题:

磁翻板液位计调校正常,投用后发现浮子在某一位置出现一段时间的“吸住”现象。这主要是磁翻板液位计穿过钢制平台安装时,与钢板距离过近产生的。因此,穿过钢制平台安装需要特别注意液位计连通管管壁与平台切割边线的间距。根据现场使用经验,此间距在100㎜左右即能保证对磁性浮子不产生影响。

磁翻板液位计现场投用时,要特别注意应先打开上部闸阀,后打开下部闸阀。磁翻板液位计这是由于液位计连通管的底部装有保护浮子的止推弹簧,否则,大差压的作用可能撞碎浮子导致液位计无法使用。

磁翻板液位计投用一段时间后,出现浮子难以浮起且浮子移动不灵活的情况。这基本上是因为磁性浮子上沾有铁屑或其他污物造成的。可先排空介质,再取出浮子,消除磁性浮子上沾有的铁屑或其他污物即可。

如果因运输或其他原因导致现场指示用的密闭玻璃管破裂,则可用国产玻璃管更换。但能抽真空。磁翻板液位计还要注意玻璃管是否垂直,以免影响指示器的指示。

磁翻板液位计使用过程中,如果输出信号产生频繁扰动或有干扰脉冲,就要检查信号电缆屏蔽层是否可靠接地,工作接是电阻能否满足要求。倘若磁翻板液位计干扰仍然没有完全消除,可用信号隔离器来解决。

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