高温高粘型椭圆齿轮流量计

FG系列

原理                                                                                   

由计量箱和装在计量箱内的一对椭圆齿轮，与上下盖板构成一个密封的初月形空腔（由于齿轮的转动，所以不是*对密封的）作为排量的计算单位。当被测液体经管道进入流量计时，由于进出口处产生的压力差推动一对齿轮连续旋转，不断地把经初月形空腔计量后的液体输送到出口处，椭圆齿轮的转数与每次排量四倍的乘积即为被测液体流量的总量      

结构                                                                                   

"椭圆齿轮流量计由流量变送器和计数机构组成。变送器与计数机构之间加装散热器，则构成高温型流量计。变送器由装有一对椭圆齿轮转子的计量室和密封联轴器组成，计数机构则包含减速机构、调节机构、计数器、发讯器。

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应用                                                                                   

适用于沥青.润滑油.植物油.柴油.石油.渣油.煤油.机油.汽油.重油.燃料油.导热油.原油.轻油.*缘油.液压油.等多种油产品 

技术参数                                                                                  

●公称通径（mm）                          DN10～DN200                                                      

●被测液体粘度：                            2～3000（mPa.s）                                                       

●*护等级：                            IP65（**IP68）                                              

●重复性误差：                         测量值的±0.2、±0.5                                                  

●精度等级：                            0.2，0.5%级                                                  

●被测介质温度：                            常温型： -45～100℃                                           

                                       高温型： +60℃～200℃                                                

                                       *温型：200℃以上                                                    

●额定工作压力：（高压可*）            铸铁：≤1.0MPa                              

                                             不锈钢：≤1.6MPa                                         

                                                 铸钢：≤2.5MPa（4MPa，6.5MPa可选）     

●输出信号：                            脉冲信号或者4－20mA电流信号                                 

●电流输出：                            负载电阻                     0～10mA：0～1.5kΩ                                                                     4～20mA：0～750 Kω                            

●数字频率输出：                            输出频率上限可在1～5000HZ内设定带光电隔离的晶体管集电*开路双向输出。外接电源≤35V导通时集电**大电流为250mA                                                    

性 能 概 述       

FG型                                                                                                                           

流量计，基础元件为不锈钢或合金。适用介质：油液介质。*大工作压力6.5Mpa.介质温度-45…280℃。电源：DC24 AC220V。保护级别IP68.适用管径10-200mm（另有重装*系列）                                                                                                                                                                          

                                                                                                                                                                                                   

                                  

                                                                                                                      

                                                                                                                                                                

                                                                            

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