Hi, today is the love of learning control in small butler, we have brought this little knowledge is a common problem of electromagnetic flowmeter, just bought back electromagnetic flowmeter, no action is why? Electromagnetic flowmeter show always fluctuations and why? Kangkang together!

First of all, when the electromagnetic flowmeter is not action, will again through the flowmeter manual and procedures, in many cases, having a great time electromagnetic flowmeter is not a plane because the instructions without watching, might as well read it again and see, if oneself in the process of reading before have omissions,
Second, if the above reasons, you can consider the following factors:
1) in the pipeline is not filled with liquid or bubbles in the liquid, this scenario could make electromagnetic flowmeter mistake no liquid flow in pipe, thereby the wrong identification for is not specified,
2) the liquid containing solid particles, electrodes are contaminated with oil dirties, flowmeter in the pipeline with pipeline caused by dirt and so on similar factors that influence the electromagnetic flowmeter,
3) electromagnetic flow meter installed near the whether there is the possibility of leakage current, leakage or the current instability will also affect the normal work of the electromagnetic flowmeter to a certain level,
4) circuit connection problems, such as short circuit factors may also affect the electromagnetic flowmeter is not stable,

When electromagnetic flowmeter showed fluctuations, the reason is not only the instantaneous flow rate is not stable, because during debugging environment condition is good, the meter works well, tend to neglect the installation conditions at this time, in this case, once the changing environmental conditions, run during the emergence of a new interference sources, will interfere with the normal work of the instrument, the output of the meter output signal will fluctuate, above is only part of the electromagnetic flow meter display value is not stable, as part of the reason is also possible for the following reasons: 1, the installation position is not correct, discontent, or reside with gas in the pipe, or inhaled air bubbles,
2, produced by reciprocating pumps in the piping regular pulse flow,
3, gas or air bubbles in the liquid,
Around 4, has the strong magnetic fields such as electric motor, the presence of stray current on pipeline,
5, electromagnetic flowmeter electrode contamination,
6, bad earth

This knowledge will be here, is very simple and practical, small housekeeper will continue to bring everyone together to explore the small industrial automation knowledge, come and follow me. [/color]