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4~20mA变送器的一般故障及解决办法

时间 : 2018-09-29 作者 :

/ 概述 /

工业上，最广泛采用的是用4~20mA电流来传输模拟量。我们的工程师总结了4~20mA变送器的4种典型故障及解决办法，帮助客户在现场使用中，对产品故障快速做排除，正常使用变送器产品。

/ 典型故障及解决办法 /

1、变送器无输出显示

2、变送器输出≥20mA

3、变送器输出≤4mA

4、压力显示/输出信号不正确、有误差

/ 联系我们 /

用户在现场使用中可根据常见故障提示一一检验，但其它电流、电压、数字等输出信号的变送器，情况会有差异。当现场环境复杂时，请及时联系我们的售后团队协助解决。

上一篇: 压力单位换算公式

下一篇: 压力传感器、差压传感器的区别及工作原理

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麦克传感器股份有限公司

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麦克传感器股份有限公司，始于1971年，专注压力、液位、流量、温度以及物联终端仪表的研发制造。产品广泛应用于：石油化工、水利水务、工业控制、市政消防、智慧城市、航天航海、食品医药等领域。
公司主营产品：差压传感器，压力变送器，液位变送器，温度传感器，电磁流量计，涡街流量计、压力开关、超声波流量计、液位传感器、液位计、质量流量计、流量开关、涡轮流量计、雷达液位计、双金属温度计、蒸汽流量计、雷达物位计、气体流量计、液位开关、液位控制器、水位计、压力控制器、压阻式压力传感器、科里奥利质量流量计、水流量计、污水流量计、气体压力传感器、高精度压力传感器、智能电磁流量计、数字压力传感器、智能压力变送器、差压开关等产品。麦克传感为全球100多个国家和地区的客户，提供流体介质测量的特定产品解决方案。

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基本文件流程错误 SQL 调试

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[ SQL ] SELECT * FROM `qy_industres` WHERE `cate` IN (609,616,617,618,655,656,657,658) AND `hot` = 1 LIMIT 2 [ RunTime:0.000417s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 676 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000511s ]
[ SQL ] SELECT * FROM `qy_industres` WHERE `cate` IN (676,677) AND `hot` = 1 LIMIT 2 [ RunTime:0.000420s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 38 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000525s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 110 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000517s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 36 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000509s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 67 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000512s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 68 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000515s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 601 AND `state` = 1 ORDER BY `sort` ASC [ RunTime:0.000638s ]
[ SQL ] SELECT * FROM `qy_menu` WHERE `pid` = 19 AND `state` = 1 ORDER BY `sort` DESC [ RunTime:0.000685s ]

0.115492s

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