应用在工业现场、能输出标准信号的传感器称为变送器。 变送器（图1）这个术语有时与传感器通用。

在《自动控制原理》中，变送器是把传感器的输出信号转变为可被控制器识别的信号的转换器。至于有时候与传感器通用是因为现代的多数传感器的输出信号已经是通用的控制器可以接收的信号，此信号可以不经过变送器的转换直接为控制器所识别。所以，传统意义上的“变送器”意义应该是：“把传感器的输出信号转换为可以被控制器或者测量仪表所接受标准信号的仪器”。在自控中：信号源-->传感器-->变送器-->运算器控制器-->执行机构-->控制输出。

变送器种类很多，总体来说就是由变送器发出一种信号来给二次仪表使二次仪表显示测量数据。

将物理测量信号或普通电信号转换为标准电信号输出或能够以通讯协议方式输出的设备。一般分为：温度/湿度变送器，压力变送器，差压变送器，液位变送器，电流变送器，电量变送器，流量变送器，重量变送器等。

横河压力变送器

EJA310A-ELS4A-97DC  EJA310A-ELS4A-97DD  EJA310A-EMS4A-92DA

EJA310A-EMS4A-92DN  EJA310A-EMS4A-92EA  EJA310A-EMS4A-92EN

EJA310A-EMS4A-92DC  EJA310A-EMS4A-92DD  EJA310A-EMS4A-22DA

EJA310A-EMS4A-22DN  EJA310A-EMS4A-22EA  EJA310A-EMS4A-22EN

EJA310A-EMS4A-22DC  EJA310A-EMS4A-22DD  EJA310A-EMS4A-97DA yf

EJA310A-EMS4A-97DN  EJA310A-EMS4A-97EA  EJA310A-EMS4A-97EN

EJA310A-EMS4A-97DC  EJA310A-EMS4A-97DD  EJA310A-EAS4A-92DA

EJA310A-EAS4A-92DN  yf  EJA310A-EAS4A-92EA  EJA310A-EAS4A-92EN

EJA310A-EAS4A-92DC  EJA310A-EAS4A-92DD  EJA310A-EAS4A-22DA

EJA310A-EAS4A-22DN  EJA310A-EAS4A-22EA  EJA310A-EAS4A-22EN

EJA310A-EAS4A-22DC  EJA310A-EAS4A-22DD  EJA310A-EAS4A-97DA

EJA310A-EAS4A-97DN  EJA310A-EAS4A-97EA  EJA310A-EAS4A-97EN

EJA310A-EAS4A-97DC  EJA310A-EAS4A-97DD  EJA310A-DLS4A-92DA

EJA310A-DLS4A-92DN yf  EJA310A-DLS4A-92EA  EJA310A-DLS4A-92EN

EJA310A-DLS4A-92DC  EJA310A-DLS4A-92DD  EJA310A-DLS4A-22DA  yF

EJA310A-DLS4A-22DN  EJA310A-DLS4A-22EA  EJA310A-DLS4A-22EN

EJA310A-DLS4A-22DC  EJA310A-DLS4A-22DD  EJA310A-DLS4A-97DA

EJA310A-DLS4A-97DN  EJA310A-DLS4A-97EA  EJA310A-DLS4A-97EN

EJA310A-DLS4A-97DC  EJA310A-DLS4A-97DD  EJA310A-DMS4A-92DA

EJA310A-DMS4A-92DN  EJA310A-DMS4A-92EA  EJA310A-DMS4A-92EN

EJA310A-DMS4A-92DC  EJA310A-DMS4A-92DD  EJA310A-DMS4A-22DA

EJA310A-DMS4A-22DN  EJA310A-DMS4A-22EA  EJA310A-DMS4A-22EN

EJA310A-DMS4A-22DC  EJA310A-DMS4A-22DD  EJA310A-DMS4A-97DA

EJA310A-DMS4A-97DN  EJA310A-DMS4A-97EA  EJA310A-DMS4A-97EN

EJA310A-DMS4A-97DC  EJA310A-DMS4A-97DD  EJA310A-DAS4A-92DA

EJA310A-DAS4A-92DN  EJA310A-DAS4A-92EA  EJA310A-DAS4A-92EN

EJA310A-DAS4A-92DC  EJA310A-DAS4A-92DD  EJA310A-DAS4A-22DA

EJA310A-DAS4A-22DN  EJA310A-DAS4A-22EA  EJA310A-DAS4A-22EN

EJA310A-DAS4A-22DC  EJA310A-DAS4A-22DD  EJA310A-DAS4A-97DA

EJA310A-DAS4A-97DN  EJA310A-DAS4A-97EA  EJA310A-DAS4A-97EN

EJA310A-DAS4A-97DC  EJA310A-DAS4A-97DD  EJA430A-DAS4A-97DA

EJA430A-EAS4A-97DA  EJA430A-DAS4A-92DA  EJA430A-EBS4A-92DA

EJA430A-DAS4A-97NA  EJA430A-EAS4A-92NA  EJA430A-DAS5A-97DA

EJA430A-DAS5A-92DA  EJA430A-DAS5A-97NN  EJA430A-DAS4A-92EA

EJA430A-EAS5A-92NA  EJA430A-EAS4A-97EC  EJA440A-DCS4A-92DA

EJA440A-DBS4A-92DA  EJA440A-ECS4A-92DA  EJA440A-EBS4A-92DA

EJA440A-DCS5A-92DA  EJA440A-ECS5A-92DA  EJA440A-EBS5A-92DA

EJA440A-DCS4A-92EA  EJA440A-DCS4A-92DC  EJA440A-DCS4A-92EB

EJA440A-DCS4A-92DB  EJA440A-DCS4A-92DD  EJA440A-DCS4A-22DA

EJA440A-DCS4A-22DC  EJA440A-DCS4A-99DA  EJA440A-DCS4A-92DA/NF1

EJA440A-DCS4A-92DA/NS1  EJA440A-ECS4A-92DA/NF1  EJA510A-DAS4N-02NN

EJA510A-DAS4N-02DE  EJA510A-DAS4N-02EE  EJA510A-DAS4N-02EF

EJA510A-DAS4N-02DF  EJA510A-EAS4N-02NN  EJA510A-DBS4N-02NN

EJA510A-DCS4N-02NN  EJA510A-DDS4N-02NN  EJA510A-DBS4N-02EN

EJA510A-DBS4N-09EN  EJA510A-DCS4N-02DE  EJA510A-DDS4N-02EE

EJA510A-DDS9N-02NN  EJA510A-DAS9N-02NN  EJA510A-DAS9N-02DE

EJA510A-DCS9N-02NN  EJA510A-DCS9N-02EN  EJA510A-DBS9N-02NE

EJA440A-ECS5A-92DA  EJA440A-EBS5A-92D  EJA530A-DAS4N-02NN

EJA530A-DBS4N-02NN  EJA530A-DCS4N-02NN  EJA530A-DDS4N-02NN

EJA530A-DAS4N-02NN  EJA530A-DAS4N-02DE  EJA530A-DAS4N-02EE

EJA530A-DAS4N-02EF  EJA530A-DAS4N-02DF  EJA530A-EAS4N-02NN   F

EJA530A-DBS4N-02EN  EJA530A-DBS4N-09EN  EJA530A-DCS4N-02DE

EJA530A-DDS4N-02EE  EJA530A-DDS9N-02NN  EJA530A-DAS9N-02NN

EJA530A-DAS9N-02DE  EJA530A-DCS9N-02NN  EJA530A-DCS9N-02EN

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