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technical article
Related knowledge of smart meters
2011-9-9 15:20:00

智能仪表 广泛 得到 应用 是因为它 突出 技术优势和特点, 比如它的 高稳定性、高可靠性、高精度、 易维护性。 In the field of industrial automation , smart meters are widely used because of their outstanding technical advantages and characteristics, such as its high stability, high reliability, high accuracy, and easy maintenance. 智能变送器为例, 说明 智能仪表具备如下优点: The following uses a smart transmitter as an example to illustrate that smart meters have the following advantages:
1High accuracy
Smart transmitters have higher accuracy. 利用 里面装置 的微处理器, 所以 能够实时测量出静压、温度变化对检测元件的影响, 可以 通过数据处理,对非线性进行校正, 还可以 对滞后 及复现性进行补偿, 从而 使得输出信号更 加的 精确。 Because the microprocessor inside the device is used, the influence of static pressure and temperature changes on the detection element can be measured in real time . The nonlinearity can be corrected through data processing, and the hysteresis and reproducibility can be compensated, so that The output signal is more accurate. ,精度为最大量程的±0.1% ,数字信号可达 ±0.075% In general , the accuracy is ± 0.1% of the maximum range , and the digital signal can reach ± 0.075% .

测量范围宽 2 Wide measuring range
100:1, 迁移量可 1900% -200% 可以 减少变送器的 选择 规格,增强通用性和互换性,给用户带来诸多 方便。 The maximum range ratio of ordinary transmitters is 10 : 1, while intelligent transmitters can reach 40 : 1 or 100: 1, and the migration can reach 1900% and -200% , which can reduce the choice of transmitter specifications. , To enhance versatility and interchangeability, bringing a lot of convenience to users .

通信功能强 3 strong communication function
实现手操器进行操作,既可 在现场将手操器插到变送器的相应插孔, 同时 也可以在控制室手操器连接到变送器的信号线上,进行零点及量程的调校 及变更。 Smart transmitters can be operated by the Communicator. You can either plug the Communicator into the corresponding jack of the transmitter in the field, or connect the Communicator to the signal line of the transmitter in the control room. Adjust and change the zero and span . 有的变送器 具有模拟量和数字量两输出方式( HART 协议),为实现现场总线通讯 提供 了基础。 However, some transmitters also have analog and digital output modes ( HART protocol), providing a basis for fieldbus communication .
功能强 4 powerful
微处理器,可以执行开方、温度压力补偿 及各种复杂的运算。 The smart transmitter has a variety of complex calculation functions and relies on an internal microprocessor to perform square root, temperature and pressure compensation, and various complex calculations.
5Perfect self-diagnostic function
The communicator can find out the fault result information of the transmitter self-diagnosis.