原理，结构                                                                              

    采用热传温差技术，在封闭的探头内放置发热模块及感染模块，探头的热量传导与被测量介质流速密切相关，当管道内介质以稳定的流速流动时，感应模块接收到发热模块感测的是一个固定值。当流过探头的流速发生变化时，感热模块会传出随之变化的温差信号，经过处理器将对应流速的结果输出。                                                                                    

特点                                                                                   

    无活动部件,免维护,安装方便,一种型号适用多种管径要求.开关量连续可调,极低的压力损失,超清晰LED数码显示流量百分比，有多种输出功能可选择。满足不同用户对自动化控制的需求。                                                                                

应用                                                                                    

    气液两用型，可用于气动和液压系统，可用于循环水、切削液及润滑油的断流监测，以及泵的空转保护。                                                                                   

技术参数                                                                                   

●设定范围:                        3…300cm/s( 水），3…300cm/s（油）                                                                                                                    200…3000cm/s（空气）            

●开关:                        ±1~±10cm/s                                                       

●信号输出:                        PNP，NPN，继电器，两路继电器。                                                                 模拟量（4…20mA）                                                 

●供电：                            24VDC 、110VAC 、220VAC                                              

●负载：                            5A（继电器型）                                                 

●空载电流：                            250mA                                                   

●耗损电流：                            ＜60mA                                                  

●流量指示：                            LED清晰数码显示                                                       

●设定方式：                            双按键设定                                                    

●耐压范围:                        100bar                                                    

●介质温度变化:                        ≤4℃/s                                                    

●响应时间：                          1--10s，典型值2s                                                 

●初始化时间:                           约8s                                                       

●电气保护:                        反相，短路，过载保护                                                        

●防护等级:                        IP67                                                       

●介质温度：                            -20--80℃                                                       

●环境温度：                            -20--80℃                                                       

●储存温度：                          -20--100℃                                                     

●接线方式：                            M12*1接插件                                                        

●材质:                        探头： 316L不锈钢                                                    

                            外壳： 316L不锈钢                                                    

●重量：                            约0.4kg                                                   

●探头长度：                            15mm\20mm\按客户要求特殊定制                                                                                                             

安装                                                     

    基本安装方法是将其插入到管道上，并使探头充分与被测介质相接触。实际安装时应遵循以下几个原则：                                                                     

水平安装:                                                                   

           当安装在水平管道的上端时，应保证介质是满管，以防探头只接触到空气而未接触到介质。                                                              

倒 装:                                                                

           当安装在水平管道的下端时，应保证管道底部没有沉淀物，以免探头被沉淀物覆盖而无法与探头充分接触。                                                           

侧 装:                                                                 

           当安装在管道侧面时，安装位置应避开沉淀物和空气。                                                                                          

垂直安装: