The intelligent electromagnetic flowmeter multiple fault detection of related processes

Electromagnetic flowmeter operation of common faults in the dashboard itself common faults, namely the dashboard components or electronic device damage caused by the common faults; 2 classes for common failures caused by external cause, such as installing a wrong liquidity battery change, accumulation and scale, etc. This priority is discussed in chapter described using level and class 2 external reason of common failures. Classified according to the common failures produce period, can be divided into: (1) adjust the common faults; (2) the operational phase of the common faults. Adjustment period common faults appear after initially put in regulating early, the key reason is the dashboard USES or improper Settings, wrong installation, etc. Operation phase of the common fault in operation after each period, the key reason have residual adhesive electrode lining in fluid mechanics, the natural environment standard change a new interference sources, etc. According to the common faults external root cause analysis from three levels: (1) piping system software and installation, etc; (2) caused by the natural environment level; (3) caused by fluid mechanics level. Key in regulating period mainly derived from (1); Is derived from (2) and (3) in the adjustment period and operation period will appear. Common faults of phase I and regulate this kind of common faults in the electromagnetic flow meter with regulation will appear when the original, but once the improved fault detection, then under the same standard is usually not easy to appear again. General adjustment phase common failures have improperly installed key characteristics, natural environment of dry scratching, fluid mechanics harm three level. · 1, pipeline system software and the installation is generally wrong electromagnetic induction heat meter installation common failures caused by the common heat meter such as be installed easy accumulation high retention of gas tubes; After heat meter with no back pressure, the liquid directly inline air, produce the precise measuring pipe outside the full; Mounted on to the dirty of the vertical tube road, will be a row etc. 2, the natural environment is the key pipeline stray current dry scratching, interior space radio waves do scratch, large motor electromagnetic field dry scratching, etc. Pipeline stray current dry scratching generally adopt good independent grounding protection can get satisfactory accurate measurement, but in case of pipe line have strong stray electric flow ( Such as electrolytic workshop line) Also not necessarily can be overcome, the heat meter and should be used in tube side of countermeasures, With reference to later examples 12) 。 Interior space dry scratching - radio waves Is generally selected as the shielded cable I bow, single or double block for maintenance, but also had to block maintenance also can not escape, See the examples of 12) 。 3, fluid mechanics, liquid level with joint distribution small bubble is generally not harm normal precise measurements, the traffic volume is measured only is liquid and vapour which together; Bubble would make the output data signal ups and downs, if the bubble too big to through the electrode covering all the electrode surface, make the electric level data signal instantaneous speed control circuit break, output data signal will cause more ups and downs. High frequency ( 60／18Hz- 60／6Hz） Rectangle wave excitation current electromagnetic flowmeter accurately measure with the liquid in the liquid than must when water content will cause slurry noise, there is also a must the output data signal levels rise and fall. About two species or two kind of liquid for pipeline blending process, if the two liquid conductivity ( Grade or respectively with electrical potential difference between) There are differences, in mixed before fit into the heat meter for the flow measurement, signal output data also will cause the ups and downs. Electrode material and the material being tested options is undeserved, cause passivation treatment or air oxidation, such as oxidation produce insulation membrane electrode surface, and photoelectric catalysis and electric polarization condition, etc. , will hamper the normal precise measurement. Second, the operational phase of the common faults premenstrual regulation and normal operation of each period after the common failures appeared during the operation period, because mechanical failure are: inner cavity adhesion layer, the heat meter lightning strike, natural environmental standards. 1, inner cavity adhesion layer for electromagnetic flowmeter accurately measure with the opportunity of floating solids or dirty body is far more than other flowmeters, inner cavity adhesion layer caused by common probability of failure is relative higher. If the adhesive layer conductivity as a liquid conductivity, dashboard can all normal output data signal, just change the total area of the circulation of commodities, produce data error potential common faults; If high conductivity adhesive layer, electrode electromotive force will be short circuit fault between; If the dielectric strength of the adhesive layer, electrode surface by insulating layer and broken accurately measure the power supply circuit. After the second kind of situation will make the dashboard can't work ( With reference to examples of 7) 。 2, lightning strike by lightning struck the route in the induction high working voltage and surge current instantaneous speed, into the dashboard will destroy the dashboard.
Guangdong Kaidi Energy Technology Co., Ltd. as one who also teaches operations about how we use our whole operating system as a way to gain advantage and create considerable value and capture value in a sector where, in essence, the environment is quite hostile from a competitive point of view.
Get customized level indicator level gauge from only reliable exporters, go to Kaidi level indicator for more details.
Using high-quality materials to produce level gauge is one of the most important part during manufacturing.