Troubleshooting of vortex flowmeter | How to solve the problem of excessive range displayed by vortex flowmeter

『Troubleshooting of Vortex Flow Meter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. What are the emergency response methods for displaying the overrange of a vortex flowmeter? The core principle for emergency response to overrange display of a vortex flowmeter is to quickly restore the normal operation of the process first, and then investigate the cause of the overrange, which can be promoted in two directions: temporary emergency and long-term investigation Temporary emergency handling steps 1 First time load reduction or medium cut-off: If the fluid flow rate instantly exceeds the upper limit of the range, immediately reduce the fluid flow rate and flow rate in the process pipeline, or close the upstream and downstream valves to cut off the medium, to avoid continuous over range operation of the flowmeter and damage to the internal sensor. 2. Temporary bypass switching: If the production cannot be completely stopped, it can be switched to the backup flowmeter for measurement to ensure the normal operation of the production process. 3. Reset the instrument: Disconnect the power supply of the vortex flowmeter, wait for 10-30 seconds, and then power it back on. The temporary over range error of some instruments can be cleared by resetting. 2. Investigation and radical measures for over range reasons The actual flow rate does indeed exceed the range: check the flowmeter selection parameters to confirm whether the current actual flow rate exceeds the maximum range value of the instrument. If it exceeds the range for a long time, it is necessary to replace the vortex flowmeter with a larger range. 2. Instrument parameter setting error: Check whether the upper limit setting value of the flowmeter has been mistakenly modified to a value lower than the actual flow rate, and readjust it to the range range that matches the current working condition. 3. Abnormal medium working condition: If impurities are mixed in the medium, gas-liquid two-phase flow is leaked, and vibration interference is too large, it will cause the flowmeter signal to be abnormal and falsely report exceeding the range. Filter devices can be installed to purify the medium, or the vortex flowmeter with anti-interference function can be replaced. 4. Sensor failure: If the flow rate is confirmed to not exceed the standard after troubleshooting, but the meter continues to display over range, it is likely that the internal detection components are damaged and the sensor needs to be replaced and repaired by contacting the manufacturer.

2. Fault in the pre amplification plate of EH vortex flowmeter F370

When the pre amplification plate of EH vortex flowmeter has F370 fault, it usually means that there is an abnormality in the signal processing link, which can cause phenomena such as no flow output, no LCD display, or unstable flow output. 1. Fault cause analysis: The fault may be caused by external environmental interference, improper parameter settings, mechanical leaks, or electrical problems. Specifically, it includes the presence of strong electrical equipment or high-frequency interference sources nearby, as well as strong vibrations in pipelines; The amplification factor (GB) or trigger sensitivity (SB) of the amplification board is set too high; The pipeline valve is not fully closed, resulting in medium leakage; Abnormal power supply voltage or wiring error; And the quality defects of the circuit board itself

2. Treatment measures: Firstly, check the installation environment, and if necessary, reselect the installation location

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