Electromagnetic flowmeter common fault analysis and maintenance

Often belong to the fault analysis and repair LCD screen is not bright: 1, check whether the converter into the water; 2, check the power cord connection is correct and reliable; 3, check whether insurance tube fuse in converter box. Maintenance methods: 1, the converter if the water, electricity and water clean, if don't show it needs to change of converter. 2, connect the power supply connection correct, strong; 3, if it is insurance tube fuse, the replacement of the same type of insurance tube. Traffic data is not accurate: 1, check whether medium tube; 2, line is correct, reliable contact; 3, check the sensor size, and instrument coefficient of 1, 2 meter coefficient is consistent with the sensor nameplate; Four, reading to beat, check whether the earth wire is connected. Maintenance methods: 1, medium if not full tube, need to correct installation flowmeter; 2, connect the line right strong; 3, modify the parameters to make it consistent with the nameplate; 4, good ground wire. Above is often belong to the fault analysis and repair, below we have listed 10 common faults for your reference. Interpretation in the form of questions and answers. 1, why LCD screen shown above is negative flow? A: meet the coil inside, into the header Settings, put forward flow, modified into reverse flow can be the scene of the 2, I didn't so suitable straight pipe before and after, how to do? Answer: do a bypass, not only ensure the straight pipe, and convenient maintenance. 3, you is the accuracy of the whole flow range? Answer: this refers to the precision is suitable in the middle of the range, lower limit on the range, precision will be slightly difference. 4, why the LCD display is not bright? Answer: first check behind the fuse is broken, if there is no bad is the circuit board has a problem. 5, the scene will pick up after numerical beating? Answer: the near electromagnetic interference is too strong, to do ground handling, etc. 6, the difference of an organic whole and fission in where? Answer: one is on display, fission can look up in the control room. 7, why measure sewage flow meter long time no data or uncertainty? A: may be electrode covering the sludge or damaged, suggest that regular maintenance 8, why didn't I live flowmeter measurement readings? Answer: the reason of the medium: not enough moisture content, conductivity, flow velocity is too small or dissatisfaction tube, etc. 9, the measured value with the output values are not consistent, is what circumstance? A: discontent tube, flow rate is too low, converter damage, more than processes. Ten, discontent tube can be measured? Answer: theory is possible, but the measuring accuracy is inaccurate and can not meet the requirements, through the above to the interpretation of fault analysis and repair, often believe that we can have a deeper understanding, such as still don't understand, please contact us.

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