What inspections must be done before maintenance and use of smart electromagnetic flowmeters?
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1. The flowmeter has no damage during transportation and installation;
2, the use of the power voltage is consistent with the nameplate voltage;
3, the instrument is correctly wired.
4. After the inspection is completed, open the pipeline valve so that the liquid can fill the pipeline. Care should be taken to eliminate the leakage and residual gas in the system. Then you can turn on the instrument power supply. Normally, the flowmeter needs to be powered on for 10 minutes before it can begin normal operation for a long time.
Intelligent electromagnetic flowmeter maintenance should first pay attention to the appearance of the inspection, check the appearance of damage, the integrity of the appearance of the electromagnetic flowmeter is the most important, and secondly, for the electromagnetic flowmeter accuracy inspection is the most important, to check the electromagnetic flow The zero point meter, pay attention to the zero point calibration work to be carried out from time to time, to ensure the accuracy of the electromagnetic flow meter. For visual inspection, pay attention to the cable must be thoroughly checked, the cable is the place to transmit a variety of signals, pay attention to the integrity and stability of the joints, but also pay attention to the penetration of impurities on the surface of the cable, try to cable Packing protection, especially for the interface, to observe the loss of the cable in a timely manner, for different parts, different cable models to mark, to prevent unnecessary trouble caused by wrong connection.
The most important electromagnetic flowmeter is the flow sensor and the converter. Here, other signals are used to check the accuracy of the electromagnetic flowmeter. At the same time, the electromagnetic effect is used to verify the conversion of the magnetic field and current in the converter, and for the converter. The inspection of the coils is also necessary. The dust on these devices must be cleaned in time to clean these internal dirt in a timely manner to ensure that the various parts of the device can be used in better contact with the sensor, the sensitivity of the sensor and the conversion effect of the converter. will be better.
Intelligent electromagnetic flowmeters are very accurate instruments. A slight discomfort will cause instability and inaccuracy in the determination of the liquid flow. Therefore, it is necessary to identify the critical position for the sensors and transducers of the electromagnetic flowmeter. The adjustment, timely adjustment of its accuracy, and reasonable calibration work, so as to ensure that in the future use of the process more accurately reflect the flow of liquid medium in the company's production, allowing companies to control the flow or reduce costs and other aspects of the handy.
Intelligent electromagnetic flowmeter