Float flowmeter FAQ

1. The gas medium is greatly affected by temperature and pressure.
The float flowmeter is calibrated before leaving the factory. The environmental conditions at the time of calibration are calibrated according to the temperature, pressure, density, etc. provided by the customer. But when the pressure changes, the liquid is good, but the gas is greatly affected by this. Therefore, in the selection, users can provide accurate temperature and pressure.
2. The density of the liquid medium changes greatly. Before the calibration of the float flowmeter, the medium is converted according to the density given by the user, and converted into the flow rate of the water under the calibration state. Therefore, if the density of the medium changes greatly, The measurement caused a large error. The solution can bring the density of the medium after the change into the formula, convert it into the error correction coefficient, and then multiply the flow measured by the flow meter by the coefficient to replace the actual flow.
3. Long-term use and various factors of pipeline vibration cause the floating flowmeter to sense the loose moving parts such as magnetic steel, pointer, counterweight and rotating magnetic steel, resulting in large errors. Solution: You can verify by hand pushing the pointer first. First press the pointer to the RP position to see if the output is 4 mA, the flow meter display is 0%, and then verify according to the scale. If the discrepancies are found, the parts can be adjusted.
4. Installation of non-conformity float flowmeters are installed vertically. When installed, the inclination angle of the flowmeter should not exceed 20 degrees. Of course, some float flowmeters are installed horizontally. For horizontally mounted float flowmeters, the horizontal angle is not greater than 20 degrees. There must be no ferromagnetic objects in the surrounding 100mm space.


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