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1、自控常用英文缩写根据国家行业标准HG20505-92过程检测和控制系统用文字代号和图形符号序号缩写英文中文1A Analog signal 模拟信号2ACAlternating current交流电3ADAPTAdaptive control mode自适应控制方式4A/DAnalog/Digital模拟/数字5A/MAutomatic/Manual自动/手动6ANDAND gate“与”门7ASAir supply空气源8AVGAverage平均9CPatchboard or matrix board connection线路板或矩阵接线板10CHRCbromatograph色谱11DDer
2、ivative control mode微分控制方式12Digital signal数字信号13D/ADigital/Analog 数字/模拟14DCDirect current直流电15DIFFSubtract减16DIR Direct-acting正作用17E Voltage signal电压信号18Electric signal电信号19EMFElectric magnetic flowmeter电磁流量计20ESElectric supply电源21FCFail closed故障关22FFFeedforward control mode前馈控制方式23FIFail indetermin
3、ate故障时任意位置24FLFail locked 故障时保位25FOFail open故障开26FSFlushing supply冲洗源27GSGas supply气体源28H Hydraulic signal液压信号29High高30HHHighest(higher)最高（较高）31HS Hydraulic supply 液压源32H/SHighest select高选33I Electric current signal电流信号34Interlock联锁35Integrate积分36IAInstrument air仪表空气37IFOInternal orifice plate内藏孔板38
4、INInput输入39Inlet入口40IPInstrument panel仪表盘41L Low 低42LBLocal board就地盘43LLLowest(lower)最低（较低）44LSLight source光源45L/SLowest select低选46M Motor actuator电动机执行机构47Middle中48MAXMaximum最大49MFMass flowmeter质量流量计50MINMinimum最小51NORNormal 正常52NORNOR gate“或非”门53NOTNOT gate“非”门54NSNitrogen supply氮源55O Electromagne
5、tic or Sonic signal电磁或声信号56ON-OFFConnect-disconnect(automatically)通-断（自动地）57OPTOptimizing control mode最佳控制方式58OROR gate“或”门59OUTOutput输出60Outlet出口61P Pneumatic signal气动信号62Proportional control mode比例控制方式63Instrument board仪表盘64Purge or flushing device 吹气或冲洗装置65PAPlant air工厂空气66R Automatic-reset contr
6、ol mode 自动再调控制方式67Reset of fail-locked device能源中断锁住复位装置68Resistance(signal)电阻（信号）69RADRadio无线电70REVReverse-acting反作用（反向）71RSRadiation source辐射源72RTDResistance temperature detector 热电阻73S Solenoid actuator电磁执行机构74SPSet point设定点75SQRTSquare root平方根76SS Steam supply蒸汽源77T Trap疏水阀78TV Television电视机79VOTVortex transducer旋涡传感器80WSWater supply水源81CDIndependent control desk独立操纵台
