差压横河变送器需要通电预热后开端校准。其正、负压室都有排气、排液阀或旋塞;关闭平衡阀门,先把三阀组的正、负阀门关闭,使其通大气。日后旋松排气、排液阀或旋塞放空,翻开平衡阀门,对差压变送器进行校守时,接下来把电流表(电压表)、手操器接入压力变送器输入电路中,并搜检气路密封状况。先调零点,在不带迁徙时其影响约为量程调解解闷量的1/5, 调零点时对满度几乎没有影响。横河变送器智能压力变送器不能用上述的方法校准,因为由HART压力变送器构造原理所选择,其输入压力源和发作的4-20mA电流信号之间,除机械、电路外,还有微处理芯片对输入数据的运算作业。因而调校与惯例办法有所区别。尽管压力变送器的仿照输入和所用的输入值联络精确,而量程的初始、究竟设置直接取决于的确的压力输入值。URV的数字设定来完结设置使命,但进程值的数字读数体现的数值会略有不同,校准方式有:设定量程、重定量程、微调几种。http://www.wuhandekema.com/武汉德科蒙过程控制有限公司027-88062221传真:027-88068180。ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A134217728%2C9%3A134250504%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1048576%2C32%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=28.0.0&pra=5&wgl=1&dt=1617764414838&bpp=9&bdt=56&idt=153&shv=r20210401&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Df208fc56032ec04a-222ab57211c400ce%3AT%3D1602655468%3ART%3D1602655468%3AS%3DALNI_MZ90KP_NdNDKAtfzA4A4RaK0MMehQ&nras=1&correlator=8171310106202&frm=23&ife=1&pv=2&ga_vid=1730483366.1617764415&ga_sid=1617764415&ga_hid=391551041&ga_fc=0&nhd=1&u_tz=480&u_his=6&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=11&u_nmime=26&adx=-12245933&ady=-12245933&biw=1074&bih=801&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=42530671%2C44737564%2C44740079%2C44739387&oid=3&pvsid=4354767496183189&pem=596&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&rx=0&eae=2&fc=1920&brdim=696%2C187%2C696%2C187%2C1920%2C0%2C1074%2C801%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8196&bc=29&ifi=1&uci=1.6h242ky9s12f&dtd=188" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.6h242ky9s12f" data-load-complete="true"> |