GDD471A001

GDD471A001

GDD471A001

GDD471A001

EXA DO202两线制溶解氧变送器具有灵活、可靠及低维护的特点。根据现代工业环境对溶解氧测量精度的需要而进行的设计，它具有许多特点，可确保在任何使用条件下达到最佳精度。DO202装在坚固的IP65箱体内，回路电源为两线制的安全系统及配线、安装用调试简单的功能先进的YOKOGAWA EXA分析系列。
D0202是一款智能型变送器。数字通讯既可以通过叠加在4～20mA电流上的HART协议，也可能通过Fieldbus通讯(Fieldbus Foundation)完全数字得到执行。
该智能功能可允许传输4个过程变量，日志中的信息储存，诊断数据及分析仪的远程组态。
DO202变送器是一款通用的溶解氧变送器，既可接受电化学型传感器如D030，也可接受极谱型传感器如OXYGOLD和OXYFERM，该传感器主要用于生物工业。与OXYGOLD G组合，分析仪可精确测量浓度低于1ppb (ug/L)的溶液。对于高精度，D0202对百分饱和度和ppm/ppb测量提供自动温度补偿；对盐水分析进行盐浓度补偿，及对高海拔或在如工艺发酵需要高静压的反应器进行压力补偿

variety of international field bus standards. It has both the complex analog loop regulation capability of DCS
Power-friendly human-machine interface (HMI) and convenient engineering software, and at the same time have high-speed logic and sequence control equivalent to high-end PLC indicators.
control performance. The system can be connected to both conventional I/0 and various field bus devices such as Profibus, FF, CAN, and Modbus. system tool
It has a high degree of flexibility and excellent scalability, whether it is the control of small production units, or the control of ultra-large-scale whole plants – integrated control, even
The Industrial” system can handle the application of field equipment maintenance management and cross-plant production management control with ease.
An important member of the Industrial” family, the AC800F system fully embodies the Industrial” (Industrial Information) system pioneered and led by ABB in technology.
information technology) new trends.
The system is divided into two levels: operation management level and process control level. At the operation management level, not only the traditional control system monitoring operation function is realized
function (operation and display, printing, trend display and alarm), and also complete system hardware diagnosis and data exchange between different systems.
can. The process control stage realizes various loop adjustments including complex control (various PID, ratio, Simith, etc.) and high-speed logic control.
Control, sequence control and batch intermittent control functions.
The internal communication of the process control station (between the controller and various intelligent devices such as I/0 or field instruments) adopts the international standard field controller.
Wire. The field controller supports various field buses such as Profibus. Profibus is the most widely used open field bus in the world.
Line international standard, divided into FMS, DP and PA three levels, DP communication rate can be as high as 12Mb. The CAN