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Why does Rosemounts vortex flowmeter not display instantaneous flow rate, but display cumulative flow rate? _Baidu ...
Are you referring to the screen not displaying? The instrument can be displayed through parameter settings. If the instantaneous flow is zero, but the cumulative flow continues to accumulate, it may be due to a small flow cutoff. In this case, the instrument will filter out very low flow signals to avoid inaccurate instantaneous flow caused by signal interference. There is no need to worry too much about normal signal interference, as there is no actual time record and the accumulated traffic can only be used as reference data. When the instantaneous flow rate is not displayed, the parameter settings of the instrument can be checked to ensure its correct configuration. If the settings are correct but the problem still appears, it is recommended to check the connection and power status of the instrument. Sometimes, instrument display issues may be related to hardware or software failures. If the problem persists, it is best to contact the manufacturer or professional technicians for further diagnosis. In practical applications, the display of instantaneous flow rate and cumulative flow rate of vortex flowmeter may be affected by various factors. Signal interference is one of the common causes, especially in industrial environments. In order to ensure the accuracy of data rows, the instrument usually sets a threshold. When the instantaneous flow rate is below this threshold, the system may automatically cut off this part of the data and only display the effective flow rate. This helps to reduce erroneous data caused by interference. For the situation where the instantaneous flow is zero and the
2. What are the measurement ranges of vortex flowmeters?
1、 Vortex flowmeter is a flowmeter based on the Karman vortex principle for measurement. It can measure liquids and gases, and is also very economical. The diameter is generally DN10-- DN1000. With temperature and pressure compensation, it can accurately measure gas or steam flow, and has a wide range of applications;
2、 Vortex flowmeter can only measure volumetric flow rate, usually in m3/h (cubic meters per hour), with instantaneous flow display and cumulative flow display;
3、 The measurement range corresponding to electromagnetic flow meters of different diameters is: liquid measurement: (unit: m3/h): DN15
1.2-6; DN20
1.5---10； DN25：2---16； DN32
1.8---20； DN40：2.5---25； DN50：3.5---40； DN65：7.5---70； DN80：12---130； DN100：18---160； ..... Gas measurement: (unit: m3/h): D