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            <h1 id="inside_rnewtil">DM-2003-LCD差压变送器的安装规范与布线注意事项</h1>
            <div class="inside_rnewtime">更新时间：2025-08-14  &nbsp;&nbsp;点击次数：319次</div>
            <div class="inside_rnewcon"><div>　　<strong>DM-2003-LCD差压变送器</strong>的安装规范与布线注意事项对于确保其正常运行和测量准确性至关重要。以下是根据相关知识和经验整理的安装规范与布线注意事项：</div><div>　　一、安装规范</div><div>　　1.设备检查：</div><div>　　在安装前，仔细核对设备型号、规格是否与设计要求一致。</div><div>　　检查设备外观是否完好，有无损坏、变形等情况。</div><div>　　2.安装位置选择：</div><div>　　差压变送器应安装在便于操作、维护和观察的位置。</div><div>　　安装位置应远离高温、潮湿、强磁场等环境，以减少对设备的干扰和损害。</div><div>　　测量液体时，安装位置应低于取压点，避免气体积聚在测量管道中影响测量；测量气体时，安装位置应高于取压点，防止液体进入测量管道。</div><div>　　3.取压点设置：</div><div>　　取压点应选在管道内流速稳定、无涡流的地方，避免在弯头、阀门、三通等附近取压。</div><div>　　取压口的大小要合适，一般为8~12mm，取压口应与管道内壁平齐，不得有毛刺或突出物。</div><div>　　4.连接管道安装：</div><div>　　连接变送器与取压点的管道应选择合适的材质和管径，一般采用不锈钢管或铜管，管径不宜过大或过小，通常为6~10mm。</div><div>　　管道连接应牢固，密封良好，可使用密封胶或垫片防止泄漏。</div><div>　　5.安装环境要求：</div><div>　　确保安装现场无强振动、强电磁干扰，以免影响设备的正常运行和测量准确性。<br />&nbsp;</div><p align="center"><img src="https://img52.chem17.com/9/20250814/638907851748071067412.png" width="416" height="354" align="middle" alt="" /></p><p>&nbsp;</p><div>　　二、布线注意事项</div><div>　　1.接线步骤：</div><div>　　遵循<strong><a href="http://www.wohuayiqi.com/Products-25699492.html" target="_blank">DM-2003-LCD差压变送器</a></strong>说明书中的接线图进行接线。</div><div>　　将正极导线接到&ldquo;PWR/COMN&rdquo;接线端子上，负极导线接到&ldquo;-&rdquo;接线端子上。</div><div>　　注意不要将带电信号线与测试端子相连，以免损坏测试线路中的测试二极管。</div><div>　　2.电缆选择：</div><div>　　应使用屏蔽的双绞线以获得最佳的测量效果。</div><div>　　为了保证正确通讯，应使用24AWG或更高的电缆线。</div><div>　　3.接地处理：</div><div>　　仪表电缆屏蔽层必须修剪平整且不接触变送器的电子装置外壳。</div><div>　　若电缆通过接线盒走线，则应连接到下一段屏蔽层。</div><div>　　在电源端妥善接地，以确保设备的安全运行。</div><div>　　4.布线要求：</div><div>　　走线时不要把信号线与电源线一起布置在导线管中或开式电缆桥架上，或者布置在大型电气设备附近，以减少电磁干扰。</div><div>　　布线应整齐、美观，避免交叉和缠绕。</div><div>　　5.调试与校验：</div><div>　　在安装完成后，进行零点和量程校准，确保设备的测量准确性。</div><div>　　在调试过程中，注意观察设备的运行状态和输出信号，及时发现并解决问题。</div><div>　　三、日常使用与维护注意事项</div><div>　　1.切勿用高于36V电压加到变送器上，以免损坏设备。</div><div>　　2.切勿用硬物碰触膜片，以免导致隔离膜片损坏。</div><div>　　3.被测介质不允许结冰，否则将损伤传感器元件隔离膜片，导致变送器损坏。必要时需对变送器进行温度保护，以防结冰。</div><div>　　4.在测量蒸汽或其他高温介质时，其温度不应超过变送器使用时的极限温度。高于变送器使用的极限温度必须使用散热装置。</div><div>　　5.定期检查和维护：定期检查设备的运行状态和接线情况，及时清理积尘和污垢，保持设备的清洁和干燥。</div><div>　　<strong>DM-2003-LCD差压变送器</strong>的安装规范与布线注意事项涉及多个方面，需要严格按照设备说明书和相关规范进行操作。通过合理的安装和布线，可以确保设备的正常运行和测量准确性，为工业生产的稳定运行提供可靠保障。</div></div>
            
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