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left">概述<br />     HNLUCB?span style="color: #000000"><b><a href="http://www.gozillab.com">插入式涡街流量计</a></b></span>主要用于各种行业工业管道中大口径气体、液体、蒸汽介质流体的流量测量,<b> </b>特点是压力损失小,量程范围?精度?在测量工况体积流量时几乎不受流体密度、压力、温度、粘度等参数的影响。无可动机械零件,因此可靠性高,维护量小。仪表参数能长期稳定?strong><span style="color: #ff00ff"><span style="color: #000000"><b>插入式涡街流量计</b></span></span></strong>采用压电应力式传感器,可靠性高,可在-20℃~+250℃的工作温度范围内工作。有模拟标准信号,也有数字脉冲信号输出,容易与计算机等数字系统配套使?是一种比较先进、理想的流量仪表。?br />     HNLUCB?b><span style="color: #ff00ff"><span style="color: #000000"><b><a href="http://www.gozillab.com/product/llyb/">插入式涡街流量计</a></b></span></span></b>防爆型,符合GB3836-83《爆炸性环境用防爆电气设备》的有关规定,防爆标志为ExdIIBT6?br /> <br /> 工作原理?br /> <span style="color: #000000"><b><a href="http://www.gozillab.com/product/llyb/charushiwojieliuliangji.html">插入式涡街流量计</a></b></span>按国际标准化组织IS07145(在环形截面封闭管道中的流体流量测?mdash;在截面一点的速度测量?,采用埋入压电晶体的涡街测速探头,插入大口径工业管道内,将卡门旋涡频率转换为与流量成正比的电流或电压脉冲信号或4?0mADC电流信号?br /> <br /> 仪表特点?nbsp;    <br /> 1、可测量蒸汽,气体,液体的体积流量和质量流量?br /> 2、无机械运动部件,测量精度?结构紧凑维护方便?br /> 3、压力损失小,量程范围宽;范围度达1:25?br /> 4、采用消扰电路和抗振传感头;<br /> 5、采用消扰电路和抗振传感头,使仪表具有一定抗环境振动性能?br /> 6、可测介质温度达+250℃?br /> 7、可实现不断流拆装传感器,可实现放大器与传感器分离(分离距离15m);</p> <p style="text-align: left">技术参数:</p> <p style="text-align: left"> <table border="1" cellspacing="0" cellpadding="0" width="543"> <tbody> <tr> <td class="he" valign="top" width="26%">公称通经(mm?nbsp;</td> <td valign="top" width="73%"> <p class="he" align="left"> 250?500</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">仪表材质 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 1Cr18Ni 9Ti</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">公称压力(Mpa?nbsp;</p> </td> <td valign="top" width="73%"> <p class="he" align="left"> PN1.6Mpa;PN2.5Mpa</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">被测介质温度(℃?nbsp;</p> </td> <td valign="top" width="73%"> <p class="he" align="left"> ?0?250?/p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">环境条件 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 温度?0?55℃,相对湿度5%~90%,大气压力86?06Kpa</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">精度等级 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 示值的±2.5%</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">量程?nbsp;</p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 1:10?:15</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">阻力损失系数 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> Cd<2.6</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">输出信号 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 传感器:脉冲频率信号0.1 ~ 3000Hz 低电?le;1V 高电?ge;6V<br />  变送器:两线制4 ~ 20mADC电流信号</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">供电电源 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 传感器:?24VDC<br />  变送器?24VDC<br />  现场显示型:仪表自带3.2V锂电?/p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">信号传输?nbsp;</p> </td> <td valign="top" width="73%"> <p class="he" align="left"> KVVP3×0.3(三线制),2×0.3(二线制?/p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">传输距离 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> ≤500m</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">信号线接?nbsp;</p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 内螺纹M20×1.5</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">防爆等级 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> ExdIIBT6</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">防护等级 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> IP65</p> </td> </tr> <tr> <td valign="top" width="26%"> <p class="he" align="left">允许振动加速度 </p> </td> <td valign="top" width="73%"> <p class="he" align="left"> 1.0g</p> </td> </tr> </tbody> </table> </p> <p style="text-align: left">型号及功能选择</p> <p style="text-align: left"> <table border="1" cellspacing="0" cellpadding="0" width="539"> <tbody> <tr> <td valign="top" width="69"> <p class="he" align="left">代号</p> </td> <td valign="top" width="72"> <p class="he" align="left">口径</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">020</p> </td> <td valign="top" width="72"> <p class="he" align="left">200mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">025</p> </td> <td valign="top" width="72"> <p class="he" align="left">250mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">030</p> </td> <td valign="top" width="72"> <p class="he" align="left">300mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">035</p> </td> <td valign="top" width="72"> <p class="he" align="left">3500mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">040</p> </td> <td valign="top" width="72"> <p class="he" align="left">400mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">045</p> </td> <td valign="top" width="72"> <p class="he" align="left">450mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">050</p> </td> <td valign="top" width="72"> <p class="he" align="left">500mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">--------</p> </td> <td valign="top" width="72"> <p class="he" align="left">--------</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" width="69"> <p class="he" align="left">200</p> </td> <td valign="top" width="72"> <p class="he" align="left">2000mm</p> </td> <td valign="top" colspan="5"> <p> </p> </td> </tr> <tr> <td valign="top" rowspan="23" width="69"> <p> </p> </td> <td valign="top" width="72"> <p class="he" align="left">代号</p> </td> <td valign="top" colspan="5"> <p class="he" align="left">功能1</p> </td> </tr> <tr> <td valign="top" width="72"> <p class="he" align="left">N</p> </td> <td valign="top" colspan="5"> <p class="he" align="left">无温压补?/p> </td> </tr> <tr> <td valign="top" width="72"> <p class="he" align="left">Y</p> </td> <td valign="top" colspan="5"> <p class="he" align="left">有温压补?/p> </td> </tr> <tr> <td valign="top" rowspan="20" width="72"> <p> </p> </td> <td valign="top" width="83"> <p class="he" align="left">代号</p> </td> <td valign="top" colspan="4"> <p class="he" align="left">输出型号</p> </td> </tr> <tr> <td valign="top" width="83"> <p class="he" align="left">F1</p> </td> <td valign="top" colspan="4"> <p class="he" align="left">4-20mA输出(二线制?/p> </td> </tr> <tr> <td valign="top" width="83"> <p class="he" align="left">F2</p> </td> <td valign="top" colspan="4"> <p class="he" align="left">4-20mA输出(三线制?/p> </td> </tr> <tr> <td valign="top" width="83"> <p class="he" align="left">F3</p> </td> <td valign="top" colspan="4"> <p class="he" align="left">RS485通讯接口</p> </td> </tr> <tr> <td valign="top" rowspan="16" width="83"> <p> </p> </td> <td valign="top" width="66"> <p class="he" align="left">代号</p> </td> <td valign="top" colspan="3"> <p class="he" align="left">被测介质</p> </td> </tr> <tr> <td valign="top" width="66"> <p class="he" align="left">J1</p> </td> <td valign="top" colspan="3"> <p class="he" align="left">液体</p> </td> </tr> <tr> <td valign="top" width="66"> <p class="he" align="left">J2</p> </td> <td valign="top" colspan="3"> <p class="he" align="left">气体</p> </td> </tr> <tr> <td valign="top" width="66"> <p class="he" align="left">J3</p> </td> <td valign="top" colspan="3"> <p class="he" align="left">蒸汽</p> </td> </tr> <tr> <td valign="top" rowspan="12" colspan="2"> <p> </p> </td> <td valign="top" width="61"> <p class="he" align="left">代号</p> </td> <td valign="top" width="108"> <p class="he" align="left">功能2</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">E</p> </td> <td valign="top" width="108"> <p class="he" align="left">2.5?/p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">T1</p> </td> <td valign="top" width="108"> <p class="he" align="left">常温</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">T2</p> </td> <td valign="top" width="108"> <p class="he" align="left">高温</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">T3</p> </td> <td valign="top" width="108"> <p class="he" align="left">蒸汽</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">P1</p> </td> <td valign="top" width="108"> <p class="he" align="left">1.6MPa</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">P2</p> </td> <td valign="top" width="108"> <p class="he" align="left">2.5MPa</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">P3</p> </td> <td valign="top" width="108"> <p class="he" align="left">4.0MPa</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">D1</p> </td> <td valign="top" width="108"> <p class="he" align="left">内部3.6V供电</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">D2</p> </td> <td valign="top" width="108"> <p class="he" align="left">DC24V供电</p> </td> </tr> <tr> <td valign="top" width="61"> <p class="he" align="left">B1</p> </td> <td valign="top" width="108"> <p class="he" align="left">不锈?/p> </td> </tr> <tr> <td height="18" valign="top" width="61"> <p class="he" align="left">B2</p> </td> <td valign="top" width="108"> <p class="he" align="left">碳钢</p> </td> 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