The Vortex Steam Flow Meter

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1. Daily maintenance of IC card steam prepaid meter | Vortex flowmeter

The daily maintenance of IC card steam prepaid meter (Vortex flowmeter) needs to be carried out from the aspects of sealing inspection, electrical connection maintenance, anti-interference treatment, probe cleaning, parameter calibration, and high temperature protection. The specific maintenance points are as follows: sealing inspection and maintenance. Regularly check whether the flowmeter converter cover is tightened to avoid water ingress due to poor sealing. If the lid is found to be loose or the sealing ring is aging, the sealing ring should be replaced immediately and the lid should be re tightened. Check the status of the internal wiring board and terminals of the converter. If there is oxidation, corrosion, or poor contact, use professional tools to clean the surface dirt of the terminals and re crimp the wires to ensure reliable contact. Regularly check the connection status of the shielding wire for electrical connection and anti-interference maintenance, ensure reliable connection between the shielding layer and the grounding terminal, and avoid external electromagnetic interference affecting the measurement signal due to shielding failure. Verify whether the grounding resistance meets the requirements (generally ≤ 4 Ω), and if the grounding is poor, re lay the grounding wire or reinforce the grounding electrode. If the flowmeter displays abnormal data fluctuations, it is necessary to investigate whether there are interference sources such as sensitive land frequency converters and high-power motors in the surrounding area. If necessary, adjust the installation position of the flowmeter or add filtering devices. For measuring flo

w meters containing impurity steam, a regular cleaning plan needs to be developed for probe cleaning and anti clogging maintenance. When cleaning, first use a soft bristled brush to remove the floating dust on the surface of the probe, and then wipe the detection hole with an alcohol cotton ball to avoid using hard tools to scratch and damage the probe. If the detection hole is completely blocked by dirt, the probe needs to be disassembled for ultrasonic cleaning. After cleaning, dry it with compressed air and recalibrate the zero point. Parameter verification and compensation maintenance: When the measurement error exceeds the allowable range, it is necessary to check whether the key parameters such as instrument K coefficient and caliber are consistent with the factory calibration values. If the parameters are mistakenly modified, they need to be restored to default settings and recalibrated. Verify if the steam temperature and pressure compensation functions are functioning properly and enable them accordingly. For flow meters without automatic compensation, real-time operating parameters need to be manually inputted for correction. Check if the installation gasket of the flowmeter is concentric to avoid uneven fluid distribution caused by gasket eccentricity. Simultaneously confirm that the probe has not penetrated into the interior of the pipeline, otherwise the installation position needs to be adjusted. High temperature protection and insulation maintenance are aimed at measuring high-temperature steam flow meters. It is necessary to ensure that the sensor is installed at a lower position (at an angle of 15 °~30 ° to the horizontal Kelvin surface) to avoid direct impact of high-temperature steam on the top compone

1. Daily maintenance of IC card steam prepaid meter | Vortex flowmeter

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