Electromagnetic flow meter scale output signal of the super full value measures

Abstract: the electromagnetic flow meter scale output signal super full value measures of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Electromagnetic flowmeter is widely used in sewage, fluorine chemical industry, production water, tap water industry and pharmaceutical, steel, and so on many aspects. Due to its principle determines the electromagnetic flowmeter can measure conductive liquid. But the electromagnetic flowmeter in reliability and stability. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the output signal of electromagnetic flow meter scale super full value measures for details. Electromagnetic flowmeter is widely used in sewage, fluorine chemical industry, production water, tap water industry and pharmaceutical, steel, and so on many aspects. Due to its principle determines the electromagnetic flowmeter can measure conductive liquid. But electromagnetic flowmeter in terms of reliability and stability are relatively better than other kinds of flowmeter, but users in the process of actual use, or will happen some problems. Technology below small make up mainly introduce the electromagnetic flow meter output signal problems: 1, electromagnetic flowmeter, identifying the cause of the problem under converter before or after the converter and an item 1 meter check process. Failure before the converter, namely between the sensor and the sensor/transducer signal cable ( A shape electromagnetic flowmeter signal cables, seldom appears inside the instrument, the general failure) ; Later after the sensor itself and its integrator or flow under the computer such as an instrument. First water in the piping and flow sensor, still no flow condition will be converter two signal terminal and the function or terminal short circuit protection, observe the converter output signal whether enough to zero. If can to zero, can preliminary judgment fault before conversion and not in the converter and after the instrument itself, the next step can focus first check the connecting cable and sensors; If not to zero, the examination should focus after converter and an instrument. 2, electromagnetic flowmeter signal cable integrity and two electrodes and a good contact with the liquid. 2 check process. If the signal circuit disconnect, the output signal will be super full value, therefore the inspection project is mainly to verify traffic signal circuit complete patency. Signal circuits including cables and terminals, flow sensor liquid between a pair of electrodes and the electrode. Besides check circuit on and off, still should verify the cable type, the contact of the connection is correct, insulation whether meet the requirements, etc. At the end of the flow sensor electrodes in contact with the liquid ( Both electrodes in contact with the liquid or at the end of the contact to the one at the end of the electrode, disconnect the signal cable, also can flow sensor must be adapted to the location of fluid-filled why rule out the possibility of contact with liquid at the end of the electrode. 3, electromagnetic flowmeter, check the correctness of the converter set data, check the zero point and check the process item 3 full working hours. Separation type electromagnetic flow meter factory, general converter and sensor diameter and flow rate as stipulated in the contract and the actual flow calibration set parameters, sensors and switches must be one to one correspondence. Therefore, check the form a complete set is correct, then check the converter instrument constants and parameters. Analog signal and then use the review of the zero point. A size instrument need not check this. 4, check (electromagnetic flowmeter After) A 4 meter check process. Electromagnetic flow converter output flow signals to flow integrator, flow, such as computers, an instrument. If after instrument electric connection ( The active load) , the load on the power converter feedback damage output circuit, appeared to lose signal super full value phenomenon, to adopt electrical isolation measures. Converter output circuit has allowed grounding and does not allow two types. If allowed to grounding, the output is still more than full value, converter fault; If do not allow the earthing grounding, just remove the earthing can run normally. 5, electromagnetic flow meter to check the introduction of electrical interference from liquid flow chart of inspection item 5. In the absence of exciting current situation, use multimeter or oscilloscope in two electrode potential interference. This failure phenomenon often appears in alkali production industrial sodium chloride and pipeline cathodic protection, such as electrolytic process can take the electromagnetic flow sensor and pipeline insulation measures, make the electrodes with liquid in potential. 6, electromagnetic flowmeter converter itself converter itself fault cause of output signal is super full value is relatively complicated, it can be made of a link in each unit in the converter circuit, because of the type have bigger difference. For general use unit; Can use contemporary electromagnetic flowmeter circuit board into interchangeable independent units, to try to change spare circuit boards to replace discriminant method of inspection. Check item 6 process, i. e. input/output circuit. According to analog converter or digital converter circuit characteristics of the two types, check a few link, emphatically to analog converter should feedback loop is open circuit, output circuit for damage is given priority to; To digital converter circuit should ND conversion circuit and output circuit analysis as the main check the link. Flow meter manufacturers have been & other; Promote the development of science and technology guarantee quality, innovation, integrity weaving the future & throughout; , uphold their firm belief, opened a development road suitable for their own characteristics. Have to think before, we firmly believe, & other; Manufacturer & throughout; Future will be full of flowers and smiling faces of the road! Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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