1, vortex flow meter display instrument selection Display instrument intelligent flow indicator, with voltage compensation, instantaneous flow display and cumulative flow totalizer. 2. Measurable medium When measuring medium flow rate, instrument range, and bore diameter to measure general media, the full-scale flow rate of vortex flowmeters can be selected within a range of 0.5 to 12 m/s for measuring the media flow rate, and the range is relatively wide. The selected instrument specification (diameter) is not necessarily the same as the process piping. The measurement flow range should be determined within the flow rate range. That is, when the flow rate of the pipeline is too low to meet the requirements of the flow meter or the accuracy of the measurement cannot be guaranteed at this flow rate, It is necessary to reduce the diameter of the instrument to increase the flow rate in the tube and obtain satisfactory measurement results. 3. Selection of vortex flow transmitters The VA type piezoelectric vortex flow transmitter is used in the measurement of saturated steam. Due to the wide range of vortex flowmeters, in practice, the main consideration is to measure saturated steam. The flow rate must not be lower than the lower limit of the vortex flowmeter, that is to say the fluid velocity must not be less than 5m/s. According to the amount of steam used in different sizes of vortex flow transmitter, and can not use the existing process pipeline caliber to choose the transmitter diameter. 4. Selection of pressure compensation pressure transmitter Because the saturated steam line is long and the pressure fluctuates greatly, pressure compensation must be adopted. In consideration of the pressure, temperature and density correspondence, only pressure compensation can be used in the measurement, due to pipeline saturation. The steam pressure is in the range of 0.3-0.7MPa, and the pressure transmitter can select 1MPa. 5, precision function check Accuracy grades and functions Select the instrument accuracy grade according to the measurement requirements and the use occasions, so that it is cost-effective. For applications such as trade settlement, product handover, and energy metering, higher accuracy levels, such as 1.0, 0.5, or higher, should be selected. For process control applications, flowmeters select different levels of accuracy based on control requirements; Some are just occasions to detect the process flow, without having to do precise control and metering, you can choose a slightly lower accuracy class, such as 1.5, 2.5, or even 4.0, then you can use low-cost plug-in vortex flowmeter. Chakra Crystal Bowls - Jewels of Energy colorful stars Chakra Crystal Bowl,Gradient Chakra Crystal Singing Bowls,Color Gradient Chakra Crystal Bowl,Chakra Singing Bowl Set Live Better , https://www.qresoundtherapy.com
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Vortex flowmeter correct measurement method of flow measurement