Abstract: how to do during the Spring Festival of metal tube float meter scale maintenance work to ensure the accuracy of the information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.
Many companies will take the production during the Spring Festival break for industrial flow instrument maintenance, so how do you do during the Spring Festival of metal tube float
flowmeter maintenance work?
Let's talk about what is required to maintain and matters of attention in a pointer.
More flow meter manufacturers choose model price quote you are welcome to inquire, here is how to do during the Spring Festival metal pipe flow meter scale maintenance work to ensure the accuracy of the article details.
Many companies will take the production during the Spring Festival break for industrial flow instrument maintenance, so how do you do during the Spring Festival of metal tube float flowmeter maintenance work?
Slight pointer jitter: generally caused by fluctuations in medium.
Can be used to increase the damping ways to overcome.
Moderate pointer jitter: generally caused by medium flow state.
Is often caused by unstable operating pressure of medium for gas.
Can use voltage or current regulator devices to overcome or increase the gas flow meter damping.
Due to severe pointer jitter: medium pulse, pressure instability or users are given the gas pressure, temperature and flow of the operating state does not accord with the actual state of float flowmeter, a bigger difference caused by flow meter range.
Second, the cursor to a location without moving the main reason is that the float float flowmeter.
General because of metal tube float flowmeter open valve when using too fast, the float fast upward shock stop, stop deformation caused will float.
But does not rule out due to float guide bar with different heart, stop ring float jammed.
Processing instrument can be removed, the deformation of plastic surgery to stop off, and check whether with guide bar work, such as different heart can be calibrated, then float installed, push float, feeling float up and down unimpeded card can may, in addition, the flow meter must be vertical or horizontal installation, when installation cannot tilt, otherwise easy to cause the card table, and also brings to the measurement error.
Installation does not conform to the requirements for vertical flow meter to keep vertical, Angle is not more than 20 degrees for horizontal flow meter to keep level, tilt Angle is not greater than 100 mm space around 20 degrees float flowmeter can not have ferromagnetic objects.
To stay away from the valve installation position process pipeline diameter changes, pump discharge, corner, etc.
Keep straight pipe before 5 d after 250 mm.
The density of liquid medium larger changes is also a cause of error.
Because the instrument before calibration, it will be medium conversion, according to the density of users give converted to calibration status of water flow in calibration, so if the change of medium density is bigger, can cause very big error of measurement.
Solution can be change after medium density into the formula of the conversion error correction coefficient, then flow meter to measure flow rate multiplied by the coefficient for the real traffic.
Influence on gas medium due to temperature and pressure, and recommended way to obtain the real flow of temperature, pressure compensation.
Due to long-term use of multiple factors flow meter sensing and pipeline vibration, magnetic steel, Pointers and counterweight, rotating magnetic steel parts loose, caused the error.
Solution: can use first hand push pointer to verify.
First of all, the position of the pointer on the RP to see if the output is 4 ma, flow display is 0%, and in turn according to the calibration for validation.
If found, can be adjusted to place parts.
Generally require professional personnel adjustment, otherwise it will cause the loss position, need to return to factory.
Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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