HR-YKA-1B21OKL,HR-YKA-1A21,HR-YKA-1A44,HR-YKA-3A21,HR-YKA,浮球式液位控制器

HR-YKA系列浮球式液位控制器适用于石油、化工、纺织印染、环保、民用建筑等各种敞口或密闭容器内各种介质的单点或多点液位的控制和报警。仪表结构简单、安装方便、价格低廉

结构原理
    液位开关主要由浮球、导杆、干簧管开关和接线盒等组成。根据测量介质的不同，接液材质有不锈钢、PP、PTFE等。随着液位上下变化，导杆外的浮球沿导杆上下移动，当接近干簧管开关时，通过磁性耦合，浮球内的永久磁钢吸合导杆内的干簧管开关，发出开关通断信号。常开簧片开关处于磁场中时接通，处于磁场外时呈断开状态。常闭簧片开关处于磁场中时断开，处于磁场外时呈接通状态。两种簧片开关工作状态如下图所示：

主要技术参数
工作温度：-30～120℃
环境温度：-40～70℃
工作压力：-0.1～2.5MPa
介质密度：≥0.5g／cm³
输出信号：SPST或SPDT干簧触点
触点容量：220VAC 1A；24VDC 0.5A
开关寿命：5×104次
电气接口：M20×1.5 内螺纹
防爆等级：隔爆型：ExdIIBT1～T6；本安型：ExiaIICT1～T6 
防护等级：IP65
过程连接：HG20592～20635-97 DN50以上，其他法兰标准（如GB、JB/T、HGJ、ANSI、DIN等）请用户在订货时注明
接液材质：不锈钢；PP；PTFE
接线盒材质：铝合金

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