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怎样通过风机全压选择压力变送器

本文章主要介绍了:怎样通过风机全压选择压力变送器,扩散硅压力变送器用在什么地方,横河 压力变送器 品牌,怎样通过风机全压选择压力变送器等信息

零点和量程调节:
wika压力变送器的零点和量程调节可以通过变送器本身的按键进行现场调节;也可以通过手持终端远程调节。具体方法是:加零点压力并稳定后,同时按住Z和S键(Z为零点调节,S为量程调节)5秒钟松开,按Z键2秒调节零点,加满程压力并稳定后,按S键2秒调节满程。注:零点校准调节范围为压力量程的±8%,量程校准范围为压力量程的30%~100%,连续可调。调节完毕后,盖好密封盖并拧紧。
wika压力变送器产品选型
HQ-1151/3051/3351/3851Twika压力变送器
HQ-1151/3051/3351/3851-T
wika压力变送器
测量形式(注明量程)
G、表压A、绝对压力B、密封压力(注明参考压力值)
(怎样通过风机全压选择压力变送器)

压力变送器真正的校正是需要用一台标准压力源输入变送器的。由于不应用规范器而调分度值(LRV、URV)没有校正,忽视键入部位(键入变送器的水压)来开展輸出调整(变送器的变换集成运放)没有恰当的校正。再者压力、差压检测部件与A/D转换电路、电流输出的关系并不对等,校准的目的就是找准三者的变化关系。强调一点:只有对输入和输出(输入变送器的压力、A/D转换电路、环路电流输出电路)一齐调试,才称得上是真正意义上的校准。
压力源根据胶皮管与自做接线头相互连接,关掉均衡闸阀,并查验液压阀块封口状况,随后把电流计(电压表)、手操器连接变送器輸出集成运放中,接电源加热后开使校正。人们了解无论哪些规格的差压变送器,其正、空气压力室常有泄压阀、排液阀或旋塞;这就为人们当场校正差压变送器出示了便捷,换句话说无需拆卸导压管就可校正差压变送器。对差压变送器开展校正时,先把三阀组的正、负闸阀关掉,开启均衡闸阀,随后旋松泄压阀、排液阀或旋塞倒空,随后用自做的接线头来替代接送风机室的泄压阀、排液阀或旋塞;而空气压力室则维持旋松情况,使其通空气。
(怎样通过风机全压选择压力变送器)

工作原理:
SX-LU系列蒸汽管道流量表在流体中垂直地插入一根柱状阻力体时,在其两侧就会交替地产生旋涡,随着流体向下游方向运动,形成旋涡列,称为卡曼涡街,产生涡街的阻力体称旋涡发生体。实验证明,旋涡的频率与流速成正比。实验证明:当两列旋涡之间的距离h和同列两个旋涡之间的距离L满足公式L/h=0.281时非对称旋涡列就能保持稳定状态。当流体雷诺数Re在4000118588浞段谑保琒r基本不变,所以d和Sr为定值时旋涡发生体的频率f与流体的平均流速成正比,即与体积流量Q成正比而与压力、温度、密度等参数无关。当旋涡在柱体两侧产生时,传感器受到与流向垂直的交变升力的作用感生信号,升力的变化频率是旋涡频率,传感器将信号送转换器放大整形后得到与流速成线性比例的脉冲信号直接输出或将其转换成4~20mA标准信号输出
(怎样通过风机全压选择压力变送器)

7.根据丈量介量取接触材量的兼容性:正在某些丈量场所,丈量介量具有腐蚀性,此时需选用取丈量介量兼容的质料或停止特殊的工艺处置,确保变送器不被损坏。8.根据压力接口形式:凡是以螺纹连接(M20×1.5)为尺度接口形式。9.根据供电电源和输出:凡是压力变送器接纳曲流电源供电,供给多种输出选择,包罗4~20mA.DC;、0~5V.DC、1~5V.DC、0~10mA.DC等,能够有232或485数字输出。这些被测压力都比较小,青光眼的眼压范围在~kPa之间[],人类与外部接触所产生的压力大约在~kPa之间[]
压力变送器的丈量范畴能够做的很宽,从高压开端能够到MPa(一般情况)
(怎样通过风机全压选择压力变送器)

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参见附加选型表
PDS403H-1BS0-A1DAPDS403H-1CS0-A1DAPDS403H-1DS0-A1DAPDS403H-1ES0-A1DAPDS403H-1FS0-A1DAPDS403H-1GS0-A1DAPDS403H-2BS0-A1DAPDS403H-2CS0-A1DAPDS403H-2DS0-A1DAPDS403H-1BS1-A1DA/G61/G81PDS403H-2ES0-A1DAPDS403H-2FS0-A1DAPDS403H-2GS0-A1DAPDS403H-1BS0-A1NAPDS403H-1CS0-A1NAPDS403H-1DS0-A1NAPDS403H-1ES0-A1NAPDS403H-1FS0-A1NAPDS403H-1GS0-A1NAPDS403H-1DS1-D1DA/G71/GS/G81PDS403H-1E-S1A1DA/G61/GS/G81PDS403H-1DS0-A2DAPDS403H-1DS0-A2NA/G60G83PDS403-H-1BS0-A2NA/G60G83PDS403H-1DS0-A1DA/G61PDS403H-1BS0-A1DAPDS403H-1DS1-A1DAPDS403H-1CS1-A1DAPDS403H-1BS1-A1DAPDS403H-1BH1-A1DA/G61PDS403H-1BS1-A1NAPDS403H-1CS0-A1NAPDS403H-1ES1-A1DAPDS403H-1CH1-A1DAPDS443H-1FH1-A1DA/G61PDS443H-1DH1-A1DA/G61PDS443H-1CS1-A1DAPDS443H-1DS0-A1DA/G71PDS443H-1DS1-A1DAPDS443H-1ES0-A1DAPDS443H-1HS0-A1DAPDS403H-1BS0-A1NAPDS403H-1BS0-A1NA/G61/G83PDS403H-1BS0-A1NBPDS403H-1BS0-A1NB/G61/G83PDS403H-1BS0-A1NNPDS403H-1BS0-A1NN/G61/G83PDS403H-1BS0-A1DAPDS403H-1BS0-A1DA/G61/G83PDS403H-1BS0-A1DBPDS403H-1BS0-A1DB/G61/G83PDS403H-1BS0-A1DNPDS403H-1BS0-A1DN/G61/G83PDS403H-1BS0-A2NAPDS403H-1BS0-A2NA/G61/G83PDS403H-1BS0-A2NBPDS403H-1BS0-A2NB/G61/G83PDS403H-1BS0-A2NNPDS403H-1BS0-A2NN/G61/G83PDS403H-1BS0-A2DAPDS403H-1BS0-A2DA/G61/G83PDS403H-1BS0-A2DBPDS403H-1BS0-A2DB/G61/G83PDS403H-1BS0-A2DNPDS403H-1BS0-A2DN/G61/G83PDS403H-1BS1-A1NAPDS403H-1BS1-A1NA/G61/G83PDS403H-1BS1-A1NBPDS403H-1BS1-A1NB/G61/G83PDS403H-1BS1-A1NNPDS403H-1BS1-A1NN/G61/G83PDS403H-1BS1-A1DAPDS403H-1BS1-A1DA/G61/G83PDS403H-1BS1-A1DBPDS403H-1BS1-A1DB/G61/G83PDS403H-1BS1-A1DNPDS403H-1BS1-A1DN/G61/G83PDS403H-1BS1-A2NAPDS403H-1BS1-A2NA/G61/G83PDS403H-1BS1-A2NBPDS403H-1BS1-A2NB/G61/G83PDS403H-1BS1-A2NNPDS403H-1BS1-A2NN/G61/G83PDS403H-1BS1-A2DAPDS403H-1BS1-A2DA/G61/G83PDS403H-1BS1-A2DBPDS403H-1BS1-A2DB/G61/G83PDS403H-1BS1-A2DNPDS403H-1BS1-A2DN/G61/G83PDS403H-1CS0-A1NAPDS403H-1CS0-A1NA/G61/G83PDS403H-1CS0-A1NBPDS403H-1CS0-A1NB/G61/G83PDS403H-1CS0-A1NNPDS403H-1CS0-A1NN/G61/G83PDS403H-1CS0-A1DAPDS403H-1CS0-A1DA/G61/G83PDS403H-1CS0-A1DBPDS403H-1CS0-A1DB/G61/G83PDS403H-1CS0-A1DNPDS403H-1CS0-A1DN/G61/G83PDS403H-1CS0-A2NAPDS403H-1CS0-A2NA/G61/G83PDS403H-1CS0-A2NBPDS403H-1CS0-A2NB/G61/G83PDS403H-1CS0-A2NNPDS403H-1CS0-A2NN/G61/G83PDS403H-1CS0-A2DAPDS403H-1CS0-A2DA/G61/G83PDS403H-1CS0-A2DBPDS403H-1CS0-A2DB/G61/G83PDS403H-1CS0-A2DNPDS403H-1CS0-A2DN/G61/G83PDS403H-1CS1-A1NAPDS403H-1CS1-A1NA/G61/G83PDS403H-1CS1-A1NBPDS403H-1CS1-A1NB/G61/G83PDS403H-1CS1-A1NNPDS403H-1CS1-A1NN/G61/G83PDS403H-1CS1-A1DAPDS403H-1CS1-A1DA/G61/G83PDS403H-1CS1-A1DBPDS403H-1CS1-A1DB/G61/G83PDS403H-1CS1-A1DNPDS403H-1CS1-A1DN/G61/G83PDS403H-1CS1-A2NAPDS403H-1CS1-A2NA/G61/G83PDS403H-1CS1-A2NBPDS403H-1CS1-A2NB/G61/G83PDS403H-1CS1-A2NNPDS403H-1CS1-A2NN/G61/G83PDS403H-1CS1-A2DAPDS403H-1CS1-A2DA/G61/G83PDS403H-1CS1-A2DBPDS403H-1CS1-A2DB/G61/G83PDS403H-1CS1-A2DNPDS403H-1CS1-A2DN/G61/G83PDS403H-1DS0-A1NAPDS403H-1DS0-A1NA/G61/G83PDS403H-1DS0-A1NBPDS403H-1DS0-A1NB/G61/G83PDS403H-1DS0-A1NNPDS403H-1DS0-A1NN/G61/G83PDS403H-1DS0-A1DAPDS403H-1DS0-A1DA/G61/G83PDS403H-1DS0-A1DBPDS403H-1DS0-A1DB/G61/G83PDS403H-1DS0-A1DNPDS403H-1DS0-A1DN/G61/G83PDS403H-1DS0-A2NAPDS403H-1DS0-A2NA/G61/G83PDS403H-1DS0-A2NBPDS403H-1DS0-A2NB/G61/G83PDS403H-1DS0-A2NNPDS403H-1DS0-A2NN/G61/G83PDS403H-1DS0-A2DAPDS403H-1DS0-A2DA/G61/G83PDS403H-1DS0-A2DBPDS403H-1DS0-A2DB/G61/G83PDS403H-1DS0-A2DNPDS403H-1DS0-A2DN/G61/G83PDS403H-1DS1-A1NAPDS403H-1DS1-A1NA/G61/G83PDS403H-1DS1-A1NBPDS403H-1DS1-A1NB/G61/G83PDS403H-1DS1-A1NNPDS403H-1DS1-A1NN/G61/G83PDS403H-1DS1-A1DAPDS403H-1DS1-A1DA/G61/G83PDS403H-1DS1-A1DBPDS403H-1DS1-A1DB/G61/G83PDS403H-1DS1-A1DNPDS403H-1DS1-A1DN/G61/G83PDS403H-1DS1-A2NAPDS403H-1DS1-A2NA/G61/G83PDS403H-1DS1-A2NBPDS403H-1DS1-A2NB/G61/G83PDS403H-1DS1-A2NNPDS403H-1DS1-A2NN/G61/G83PDS403H-1DS1-A2DAPDS403H-1DS1-A2DA/G61/G83PDS403H-1DS1-A2DBPDS403H-1DS1-A2DB/G61/G83PDS403H-1DS1-A2DNPDS403H-1DS1-A2DN/G61/G83PDS403H-1ES0-A1NAPDS403H-1ES0-A1NA/G61/G83PDS403H-1ES0-A1NBPDS403H-1ES0-A1NB/G61/G83PDS403H-1ES0-A1NNPDS403H-1ES0-A1NN/G61/G83PDS403H-1ES0-A1DAPDS403H-1ES0-A1DA/G61/G83PDS403H-1ES0-A1DBPDS403H-1ES0-A1DB/G61/G83PDS403H-1ES0-A1DNPDS403H-1ES0-A1DN/G61/G83PDS403H-1ES0-A2NAPDS403H-1ES0-A2NA/G61/G83PDS403H-1ES0-A2NBPDS403H-1ES0-A2NB/G61/G83PDS403H-1ES0-A2NNPDS403H-1ES0-A2NN/G61/G83PDS403H-1ES0-A2DAPDS403H-1ES0-A2DA/G61/G83PDS403H-1ES0-A2DBPDS403H-1ES0-A2DB/G61/G83PDS403H-1ES0-A2DNPDS403H-1ES0-A2DN/G61/G83PDS403H-1ES1-A1NAPDS403H-1ES1-A1NA/G61/G83PDS403H-1ES1-A1NBPDS403H-1ES1-A1NB/G61/G83PDS403H-1ES1-A1NNPDS403H-1ES1-A1NN/G61/G83PDS403H-1ES1-A1DAPDS403H-1ES1-A1DA/G61/G83PDS403H-1ES1-A1DBPDS403H-1ES1-A1DB/G61/G83PDS403H-1ES1-A1DNPDS403H-1ES1-A1DN/G61/G83PDS403H-1ES1-A2NAPDS403H-1ES1-A2NA/G61/G83PDS403H-1ES1-A2NBPDS403H-1ES1-A2NB/G61/G83PDS403H-1ES1-A2NNPDS403H-1ES1-A2NN/G61/G83PDS403H-1ES1-A2DAPDS403H-1ES1-A2DA/G61/G83PDS403H-1ES1-A2DBPDS403H-1ES1-A2DB/G61/G83PDS403H-1ES1-A2DNPDS403H-1ES1-A2DN/G61/G83PDS403H-1FS0-A1NAPDS403H-1FS0-A1NA/G61/G83PDS403H-1FS0-A1NBPDS403H-1FS0-A1NB/G61/G83PDS403H-1FS0-A1NNPDS403H-1FS0-A1NN/G61/G83PDS403H-1FS0-A1DAPDS403H-1FS0-A1DA/G61/G83PDS403H-1FS0-A1DBPDS403H-1FS0-A1DB/G61/G83PDS403H-1FS0-A1DNPDS403H-1FS0-A1DN/G61/G83PDS403H-1FS0-A2NAPDS403H-1FS0-A2NA/G61/G83PDS403H-1FS0-A2NBPDS403H-1FS0-A2NB/G61/G83PDS403H-1BS0-D1NAPDS403H-1BS0-D1NBPDS403H-1BS0-D1NNPDS403H-1BS0-D1DAPDS403H-1BS0-D1DBPDS403H-1BS0-D1DNPDS403H-1BS0-D2NAPDS403H-1BS0-D2NBPDS403H-1BS0-D2NNPDS403H-1BS0-D2DAPDS403H-1BS0-D2DBPDS403H-1BS0-D2DNPDS403H-1BS1-D1NAPDS403H-1BS1-D1NBPDS403H-1BS1-D1NNPDS403H-1BS1-D1DAPDS403H-1BS1-D1DBPDS403H-1BS1-D1DNPDS403H-1BS1-D2NAPDS403H-1BS1-D2NBPDS403H-1BS1-D2NNPDS403H-1BS1-D2DAPDS403H-1BS1-D2DBPDS403H-1BS1-D2DNPDS403H-1CS0-D1NAPDS403H-1CS0-D1NBPDS403H-1CS0-D1NNPDS403H-1CS0-D1DAPDS403H-1CS0-D1DBPDS403H-1CS0-D1DNPDS403H-1CS0-D2NAPDS403H-1CS0-D2NBPDS403H-1CS0-D2NNPDS403H-1CS0-D2DAPDS403H-1CS0-D2DBPDS403H-1CS0-D2DNPDS403H-1CS1-D1NAPDS403H-1CS1-D1NBPDS403H-1CS1-D1NNPDS403H-1CS1-D1DAPDS403H-1CS1-D1DBPDS403H-1CS1-D1DNPDS403H-1CS1-D2NAPDS403H-1CS1-D2NBPDS403H-1CS1-D2NNPDS403H-1CS1-D2DAPDS403H-1CS1-D2DBPDS403H-1CS1-D2DNPDS403H-1DS0-D1NAPDS403H-1DS0-D1NBPDS403H-1DS0-D1NNPDS403H-1DS0-D1DAPDS403H-1DS0-D1DBPDS403H-1DS0-D1DNPDS403H-1DS0-D2NAPDS403H-1DS0-D2NBPDS403H-1DS0-D2NNPDS403H-1DS0-D2DAPDS403H-1DS0-D2DBPDS403H-1DS0-D2DNPDS403H-1DS1-D1NAPDS403H-1DS1-D1NBPDS403H-1DS1-D1NNPDS403H-1DS1-D1DAPDS403H-1DS1-D1DBPDS403H-1DS1-D1DNPDS403H-1DS1-D2NAPDS403H-1DS1-D2NBPDS403H-1DS1-D2NNPDS403H-1DS1-D2DAPDS403H-1DS1-D2DBPDS403H-1DS1-D2DNPDS403H-1ES0-D1NAPDS403H-1ES0-D1NBPDS403H-1ES0-D1NNPDS403H-1ES0-D1DAPDS403H-1ES0-D1DBPDS403H-1ES0-D1DNPDS403H-1ES0-D2NAPDS403H-1ES0-D2NBPDS403H-1ES0-D2NNPDS403H-1ES0-D2DAPDS403H-1ES0-D2DBPDS403H-1ES0-D2DNPDS403H-1ES1-D1NAPDS403H-1ES1-D1NBPDS403H-1ES1-D1NNPDS403H-1ES1-D1DAPDS403H-1ES1-D1DBPDS403H-1ES1-D1DNPDS403H-1ES1-D2NAPDS403H-1ES1-D2NBPDS403H-1ES1-D2NNPDS403H-1ES1-D2DAPDS403H-1ES1-D2DBPDS403H-1ES1-D2DNPDS403H-1FS0-D1NAPDS403H-1FS0-D1NBPDS403H-1FS0-D1NNPDS403H-1FS0-D1DAPDS403H-1FS0-D1DBPDS403H-1FS0-D1DNPDS403H-1FS0-D2NAPDS403H-1FS0-D2NBPDS403H-1FS0-D2NNPDS403H-1FS0-D2DAPDS403H-1FS0-D2DBPDS403H-1FS0-D2DNPDS403H-1FS1-D1NAPDS403H-1FS1-D1NBPDS403H-1FS1-D1NNPDS403H-1FS1-D1DAPDS403H-1FS1-D1DBPDS403H-1FS1-D1DNPDS403H-1FS1-D2NAPDS403H-1FS1-D2NBPDS403H-1FS1-D2NNPDS403H-1FS1-D2DAPDS403H-1FS1-D2DBPDS403H-1FS1-D2DNPDS403H-1GS0-D1NAPDS403H-1GS0-D1NBPDS403H-1GS0-D1NNPDS403H-1GS0-D1DAPDS403H-1GS0-D1DBPDS403H-1GS0-D1DNPDS403H-1GS0-D2NAPDS403H-1GS0-D2NBPDS403H-1GS0-D2NNPDS403H-1GS0-D2DAPDS403H-1GS0-D2DBPDS403H-1GS0-D2DNPDS403H-1GS1-D1NAPDS403H-1GS1-D1NBPDS403H-1GS1-D1NNPDS403H-1GS1-D1DAPDS403H-1GS1-D1DBPDS403H-1GS1-D1DNPDS403H-1GS1-D2NAPDS403H-1GS1-D2NBPDS403H-1GS1-D2NNPDS403H-1GS1-D2DAPDS403H-1GS1-D2DBPDS403H-1GS1-D2DNPDS403H-1BS0-D1NAPDS403H-1BS0-D1NBPDS403H-1BS0-D1NNPDS403H-1BS0-D1DAPDS403H-1BS0-D1DBPDS403H-1BS0-D1DNPDS403H-1BS0-D2NAPDS403H-1BS0-D2NBPDS403H-1BS0-D2NNPDS403H-1BS0-D2DAPDS403H-1BS0-D2DBPDS403H-1BS0-D2DNPDS403H-1BS1-D1NAPDS403H-1BS1-D1NBPDS403H-1BS1-D1NNPDS403H-1BS1-D1DAPDS403H-1BS1-D1DBPDS403H-1BS1-D1DNPDS403H-1BS1-D2NAPDS403H-1BS1-D2NBPDS403H-1BS1-D2NNPDS403H-1BS1-D2DAPDS403H-1BS1-D2DBPDS403H-1BS1-D2DNPDS403H-1CS0-D1NAPDS403H-1CS0-D1NBPDS403H-1CS0-D1NNPDS403H-1CS0-D1DAPDS403H-1CS0-D1DBPDS403H-1CS0-D1DNPDS403H-1CS0-D2NAPDS403H-1CS0-D2NBPDS403H-1CS0-D2NNPDS403H-1CS0-D2DAPDS403H-1CS0-D2DBPDS403H-1CS0-D2DNPDS403H-1CS1-D1NAPDS403H-1CS1-D1NBPDS403H-1CS1-D1NNPDS403H-1CS1-D1DAPDS403H-1CS1-D1DBPDS403H-1CS1-D1DNPDS403H-1CS1-D2NAPDS403H-1CS1-D2NBPDS403H-1CS1-D2NNPDS403H-1CS1-D2DAPDS403H-1CS1-D2DBPDS403H-1CS1-D2DNPDS403H-1DS0-D1NAPDS403H-1DS0-D1NBPDS403H-1DS0-D1NNPDS403H-1DS0-D1DAPDS403H-1DS0-D1DBPDS403H-1DS0-D1DNPDS403H-1DS0-D2NAPDS403H-1DS0-D2NBPDS403H-1DS0-D2NNPDS403H-1DS0-D2DAPDS403H-1DS0-D2DBPDS403H-1DS0-D2DNPDS403H-1DS1-D1NAPDS403H-1DS1-D1NBPDS403H-1DS1-D1NNPDS403H-1DS1-D1DAPDS403H-1DS1-D1DBPDS403H-1DS1-D1DNPDS403H-1DS1-D2NAPDS403H-1DS1-D2NBPDS403H-1DS1-D2NNPDS403H-1DS1-D2DAPDS403H-1DS1-D2DBPDS403H-1DS1-D2DNPDS403H-1ES0-D1NAPDS403H-1ES0-D1NBPDS403H-1ES0-D1NNPDS403H-1ES0-D1DAPDS403H-1ES0-D1DBPDS403H-1ES0-D1DNPDS403H-1ES0-D2NAPDS403H-1ES0-D2NBPDS403H-1ES0-D2NNPDS403H-1ES0-D2DAPDS403H-1ES0-D2DBPDS403H-1ES0-D2DNPDS403H-1ES1-D1NAPDS403H-1ES1-D1NBPDS403H-1ES1-D1NNPDS403H-1ES1-D1DAPDS403H-1ES1-D1DBPDS403H-1ES1-D1DNPDS403H-1ES1-D2NAPDS403H-1ES1-D2NBPDS403H-1ES1-D2NNPDS403H-1ES1-D2DAPDS403H-1ES1-D2DBPDS403H-1ES1-D2DNPDS403H-1FS0-D1NAPDS403H-1FS0-D1NBPDS403H-1FS0-D1NNPDS403H-1FS0-D1DAPDS403H-1FS0-D1DBPDS403H-1FS0-D1DNPDS403H-1FS0-D2NAPDS403H-1FS0-D2NBPDS403H-1FS0-D2NNPDS403H-1FS0-D2DAPDS403H-1FS0-D2DBPDS403H-1FS0-D2DNPDS403H-1FS1-D1NAPDS403H-1FS1-D1NBPDS403H-1FS1-D1NNPDS403H-1FS1-D1DAPDS403H-1FS1-D1DBPDS403H-1FS1-D1DNPDS403H-1FS1-D2NAPDS403H-1FS1-D2NBPDS403H-1FS1-D2NNPDS403H-1FS1-D2DAPDS403H-1FS1-D2DBPDS403H-1FS1-D2DNPDS403H-1GS0-D1NAPDS403H-1GS0-D1NBPDS403H-1GS0-D1NNPDS403H-1GS0-D1DAPDS403H-1GS0-D1DBPDS403H-1GS0-D1DNPDS403H-1GS0-D2NAPDS403H-1GS0-D2NBPDS403H-1GS0-D2NNPDS403H-1GS0-D2DAPDS403H-1GS0-D2DBPDS403H-1GS0-D2DNPDS403H-1GS1-D1NAPDS403H-1GS1-D1NBPDS403H-1GS1-D1NNPDS403H-1GS1-D1DAPDS403H-1GS1-D1DBPDS403H-1GS1-D1DNPDS403H-1GS1-D2NAPDS403H-1GS1-D2NBPDS403H-1GS1-D2NNPDS403H-1GS1-D2DAPDS403H-1GS1-D2DBPDS403H-1GS1-D2DN
(怎样通过风机全压选择压力变送器)

2088系列压力变送器,分普通和智能型两种,普通型提供标准的直流4-20mA信号输出,智能型除可选HART通信之外,也可选RS485接口,它用简单的编程软件调整变送器零点和量程等参数。
2.工作原理
2088系列压力变送器的核心是一个扩散硅敏感元件,它是在硅基片上采用离子注入并经激光修正制成惠斯登电桥,过程压力作用于传感器的隔离膜片上使膜片产生位移,通过膜盒内的硅油压力传递到硅基片上,同时参考端的压力(大气压、绝压或密封压)作用于硅片的另一测,这样在硅片的两边就加上了一个差压,差压在硅片上产生了一个应力场,使惠斯登电桥的四支电阻,有两支因拉伸而阻值变小,另外两支因压缩而阻值变大,变化量为ΔR,桥臂阻值的变化使电桥失去平衡这样就产生了一个与压力成正比的电压输出信号
(怎样通过风机全压选择压力变送器)

Y-150BFZ/MF316/316L/0-4MPa不锈钢耐震隔膜压力表用于测量强腐蚀、高温、高粘度、易结晶、易凝固、有固体浮游物的介质压力以及必须避免测量介质直接进入通用型压力仪表和防止沉淀物积聚且易清洗的场合,应必须采用由隔膜隔离器与通用型压力仪表组成一个系统的隔膜表。
Y-150BFZ/MF316/316L/0-4MPa不锈钢耐震隔膜压力表主要技术指标
1、隔膜表的温度特性
由于隔膜表系统由填充了密封液作为传递压力的介质,则由于密封液的温度体膨胀系数,使压力仪表随受压部温度升高而示值也升高,其温度影响量与密封液体膨胀系数,隔膜刚长以及受压部温度有关,尤其对于低量程的压力仪表,则影响更明显。一段受压部温度误差规定不大于0.1%/℃。故隔膜压力仪表总的温度影响一般是由通用型仪表温度影响量与隔膜装置受压部温度影响量两者之和。
(怎样通过风机全压选择压力变送器)

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