Pressure transmitter and two physical three-wire system wiring diagram wiring method [ Detailed 】

Normal state, the pressure transmitter is 4 - 4-20 ma current output, 20 ma current output pressure transmitter wiring are two wire system, but there are still many users do not know how to wiring. The following details under two wire system 4 - first 20 ma current signal output pressure transmitter wiring, wiring physical figure below: open the rear cover pressure transmitter, pressure transmitter you will see that there are four terminals, OUT positive and negative and the positive and negative, and here we pick OUT the positive and negative, the TEST of plus or minus is used for calibration of pressure transducer with manufacturers, the site use need not tube with two terminals has what effect, directly OUT the positive and negative. Three wire system wiring diagram as shown in the above objects, 24 v power supply, 24 v + pick OUT is, 24 v - pick OUT negative. In this way, the simple two step can complete connection, pressure transmitter, of course, there are three wire system of pressure transmitter on the market, then three wire system pressure transmitter connection how to meet? Three wire system wiring diagram of the converter as shown in figure 2, except two current transmission line current output system, a power cord to provide power supply transformer. Three wire system is the power supply is end with a line, the signal output is end with a line, the negative power supply and signal negative share a line side. Its power supply most of the DC 24 v, output signal has a DC4 - 20 ma, load resistance for Ω or DC0-250 10 ma, load resistance is 0 - 1. 5 kΩ; Some mA and video signal, but the load resistance or input resistance, numerical is different due to different output circuit. Pressure transmitter wiring problems actually even if customers do not understand, contact telephone guidance is also very simple. Equipment both transmitter and electronic display now or other valve or valve is a terminal figure or direct plus or minus two extreme, be clear at a glance is very simple. 在正常情况下,4 -压力发射器 20 mA电流输出,4 - 20 mA电流输出压力变送器连接两个- 线系统,但仍有许多用户不知道如何连接。 以下昆山丹瑞首先与4 -压力变送器的连接细节 20 ma电流信号输出两个- 线系统,如下:打开后盖的压力变送器,你会发现有四个压力变送器终端,正面和负面和正面和负面测试,这里我们连接正面和负面,测试使用积极的和消极的厂家校准压力变送器,网站使用不需要关心这两个终端产生任何影响,直接从正面和负面。 如上所示,24 V电源、24 V +积极,24 V -。 通过这种方式,一个简单的两年期 一步压力变送器连接完成,当然,也有一些三- 市场上限制压力发射器,所以如何连接三个 极限压力变送器连接? 三个——的接线图 线转换器如图2所示。 除了两个现有的输电线路,当前输出系统有一个电源线供电变压器。 3 - 线系统的积极的一端供电使用电线,积极的信号输出使用电线,和消极的电源和信号的负端共享一个连接。 其电力供应主要是直流24 v,输出信号是DC4 - 20 ma,负载电阻为250 _or DC0 - 10马,0 -负载电阻 1. 5 k; 一些也有马和mV信号,但负载电阻和输入电阻,由于不同形式的输出电路和价值是不同的。 事实上,压力变送器接线问题即使客户不理解,联系昆山丹瑞厂家电话指导是非常简单的。 现在的设备,无论是发射机或电子显示器或其他阀门或泵阀接线端子图或直接两个正面和负面终端,乍一看很简单。