Pressure transmitter's accuracy principle
Nowadays, the competition in industrial automation is increasingly fierce, the model of pressure transmitters is ever -changing, and various transmitters have followed. There are many types of pressure transmitter models. The most important thing for a truly good transmitter is its structure. It is suitable for its production and operation and measurement environment. It is a prerequisite for choosing a pressure transmitter. As a result, the integrity of industrial production depends entirely on whether the choice of pressure transmitters is reasonable.
Some mid -to -high -end pressure transmitters in the market reached 0.2%, 0.1%, 0.075%, 0.05%, or even 0.04%. Since high -precision pressure transmitters are selected, of course, we hope that the selected transmitter can also reach the highest accuracy when using it. High -precision pressure transmitters often have the characteristics of high -volume ratio. The accuracy and range ratio of the pressure transmitter is two independent indicators. It seems to be unrelated to each other. When we choose a certain manufacturer, When the transmitter, its accuracy seems to be as indicated on the selection sample.
When choosing a transmitter, the high sensitivity of the pressure transmitter is trusted by the majority of the group. A pressure transmitter with a high sensitivity. The replacement of the signal is very favorable. Of course, the sensitivity of the pressure transmitter is also worth pondering. The measurement of one -way vector is suitable for a pressure transmitter with less sensitivity. Multi -dimensional vectors are suitable for more pressure transmitters with smaller intercourse sensitivity.
The use of pressure transmitters on the spot, more irrelevant external interference factors, will affect the measurement of the transmitter. Therefore, while choosing a pressure transmitter, its noise prevention function must be strong, so as to avoid the measurement impact of external factors.
While selecting the sensitivity of the pressure transmitter, the accuracy of the pressure instrument is also an important factor in choosing a transmitter. It is determined by the maximum measurement error that can be achieved according to the on -site production operation process. The accuracy of the domestic industrial pressure instrument does not exceed ± 0.5 to the maximum value, which includes a comprehensive error of non -linear, lag and back differences.
