Abstract: the intelligent electromagnetic
flowmeter scale after downtime maintenance information produced by excellent
flow meter, flow meter manufacturer to offer you the quotation.
Intelligent electromagnetic flowmeter in downtime when not in use, we have to respond to flowmeter scientific and reasonable maintenance and maintenance method.
Users have a period of time after the purchase of electromagnetic flowmeter can appear measurement data is not accurate, this is what reason, in fact.
More flow meter manufacturers choose model price quote you are welcome to inquire, here is the intelligent electromagnetic flowmeter scale after downtime maintain article details.
Intelligent electromagnetic flowmeter in downtime when not in use, we have to respond to flowmeter scientific and reasonable maintenance and maintenance method.
Users have a period of time after the purchase of electromagnetic flowmeter can appear measurement data is not accurate, this is what reason, but it is not the quality problem of the electromagnetic flowmeter, but you don't have carried out in accordance with the manual method in maintenance.
First, zero check and adjustment of the electromagnetic flowmeter maintenance intelligent electromagnetic flowmeter in operation before, after electrify must in the electromagnetic flow sensor with fluid under stationary state adjust the zero point.
After put into operation or to use condition periodically stop flow for zero check;
Especially on precipitation, easy pollution electrode, the cleaning liquid containing solid phase, at the beginning of the run should be checked, in order to obtain experience to determine the normal inspection cycle.
Ac excitation mode of electromagnetic flowmeter with rectangular wave excitation, are more likely to produce zero drift, so more attention should be paid to check and adjust.
Electromagnetic flowmeter maintenance downtime?
Two sedimentary malfunction application example of the error.
One is drilling cementing engineering, the total flow perfusion slurry is an important process parameters, often with high-pressure electromagnetic flowmeter.
Instrument intermittent use, with finish to wash after sensor tube, the rest of the time are hollow tubes.
Due to inadequate cleaning, measuring residue slurry solidifying into a thin layer of tube wall, nearly two months accumulation form the insulating layer, covering the entire electrode surface, leading to run is not normal to zui eventually won't work.
Another is electrolytic cutting process on the test rig, saturated salt water flow is controlled by electromagnetic flowmeter, clearance after using a period found that traffic signal gradually weakened, 2 months after the signal is zero.
Reason is electrolytic iron deposition in the process of cutting tube wall, formation caused by short circuit.
Clear stratification is back to normal immediately.
Second, the intelligent electromagnetic flowmeter maintenance regularly check the sensor performance of electromagnetic flowmeter maintenance downtime?
First of all, roughly measure resistance between electrodes.
Disconnect between the converter and signal connection of sensor and sensor inside fluid-filled, to the two electrodes and grounding resistance value is measured with a multimeter, e. range is in the factory, and measured by two values the same.
Record the measured resistance value for the first time, after this value to judge the sensor failure reason (
If sediment is conducting or insulating)
Is useful.
Secondly, sensor emptying liquid, wipe the lining, after being completely dry megohm meter was used to measure the resistance between the two electrodes and earthing terminal.
Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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