Thread Content
The output signals of vortex flow meters include both frequency signals and analog signals. The so-called analog signal output is obtained through conversion based on the frequency output, and this conversion results in a loss of approximately 0.1% in accuracy. Therefore, when measuring steam flow, we prefer to use the frequency signal output method. There are several other reasons why frequency signal output is commonly used in vortex flowmeters: 1. Vortex flowmeters with frequency output are slightly cheaper (non-intelligent type). 2. It is more convenient to modify the full-scale range of frequency-output vortex flowmeters; this can be achieved by simply operating the buttons on the programmable flow calculator panel in a specified manner. 3. The steam flow rate is calculated from the frequency signal output by the vortex flow meter; only the current operating conditions of the fluid need to be known. In contrast, the temperature and pressure compensation provided by analog vortex flow meters serves to correct errors resulting from deviations of the current operating conditions from the design conditions. Therefore, not only the current operating conditions but also the design conditions are necessary. The data for the latter operating condition often leads to errors due to the loss of records over time or as a result of staff changes; therefore, such problems do not occur with frequency output. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/20175239314754.jpg