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Why does the vortex flowmeter display normal cumulative flow and abnormal instantaneous flow?
A vortex flowmeter is installed on site for measuring water flow, using a split installation method. The on-site equipment is running normally, but it was found that the instantaneous flow rate is displayed as zero, while the cumulative flow rate is accumulating normally. This situation is obviously not in line with convention, as under normal operating conditions, the cumulative instantaneous flow rate should be consistent with the cumulative flow rate value. After checking the menu of the flow integrator, it was found that the setting value of the instantaneous flow filtering function FLTR was 3, which caused abnormal display of instantaneous flow. After adjusting this value to 1, the instantaneous flow rate and cumulative flow rate display of the flowmeter returned to normal. After checking the manual, it was found that the flow integrator has a digital filtering function, which is used to overcome flow fluctuations and ensure the accuracy of accumulated flow. When the flow signal is small, setting FLTR to 3 will cause excessive filtering effect and slow response speed, thereby affecting the correct display of instantaneous flow. After adjusting to 1, the filtering effect decreases, the response speed of the anti macro front increases, and the results of the display hood are normal. However, regardless of the setting, it will not affect the accurate measurement of cumulative traffic. As a professional enterprise providing flow meters and related products, Huayi has always been committed to providing users with high-quality products and services. If you are interested in metal rotor flow meters, please continue to
2. Why is there no flow display on the vortex flowmeter?
Reasons and solutions for the lack of flow display in vortex flowmeters. The lack of flow display in vortex flowmeters may be caused by various factors.. Here are some common reasons and their corresponding solutions:
1. Power supply problem Reason: The vortex flowmeter is not connected to the power supply, or the output voltage of the power circuit board is abnormal. Solution: Confirm whether the vortex flowmeter has been correctly connected to the power supply. Check if the output voltage of the power circuit board is normal. If it is abnormal, try replacing the entire power circuit board to determine its quality.
2. Cable connection problem Reason: The cable connecting the vortex flowmeter is damaged or not connected correctly.
. Solution: Check whether the cable is intact, including whether the insulation layer is damaged, whether the core wire is broken, etc. Confirm whether the cable connection is correct, including the matching of plugs and sockets, fastening of wiring terminals, etc.III. Reasons for fluid flow state problems: incorrect direction of steam flow or insufficient liquid filling in the pipe.
. Solution: Check if the direction of steam flow is consistent with the design direction of the vortex flowmeter. For vortex flowmeters that can measure in both forward and reverse directions, if the direction is not consistent, although they can measure, the set display flow may not match in the forward and reverse directions, and the direction needs to be corrected or the symbol setting of the display instrument needs to be adjusted. Confirm if the pipeline is filled with liquid
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