Common faults and solutions of magnetic float level gauge

Common faults and solutions of magnetic float level gauge 1. Abnormal indication The indication of the float level gauge is abnormal, which is a very common fault of the float level gauge. Usually there are the following manifestations: Phenomenon 1. The floating ball level gauge in the atmospheric pressure workshop has a large indication. Troubleshooting: through inspection, it is found that the counterweight of the float ball is at a low point, indicating that the liquid level of the instrument is high. The on-site glass plate and the indicator of the instrument do not match, usually the false liquid level phenomenon of high liquid level caused by the falling off of the instrument float. At this time, it can be dealt with by stopping the maintenance and replacing the floating ball. Phenomenon 2. The float level gauge in the aromatic hydrocarbon tank area does not change with the liquid level in the container, and always indicates a major fault treatment: at this time, check whether the float ball falls off, and if it falls off, reinstall it. Phenomenon 3. Troubleshooting of the low indication of the float level gauge: The above faults may be caused by the falling off of the float, the breakage of the connecting rod of the float, the damage of the float conversion mechanism, the damage of the float pointer or the meter head, etc. If the instrument conversion mechanism is pressed, the float link rotates flexibly, and the pointer and the meter head are unobstructed, the float link should be replaced at this time. Phenomenon 4. Troubleshooting of the float level transmitter suddenly no indication Replace the gauge head. two. Magnetic field interference If the float level gauge malfunctions, according to the analysis of the working principle of the float level gauge, it is mostly due to magnetic field interference. Because the float ball and guide rod of the float level gauge contain magnetic objects, if they are interfered by other magnetic fields in the application environment, it will affect the normal operation of the instrument, and even lead to the occurrence of demagnetization of instrument components. Troubleshooting: Please check whether there is a strong magnetic field around the instrument and the container in time, and confirm that there are no magnetic impurities in the measured liquid. If there is a magnetic field, please remove it in time to avoid the appearance of the float level gauge due to the interference of the magnetic field. abnormal. three. The floating ball is stuck The floating ball is stuck, usually because the liquid to be tested contains impurities and dirt. Over time, the guide rod will gradually become fouled. If the floating ball is stuck, it will cause no signal output from the instrument. Troubleshooting: If there is a fault that the floating ball is stuck, the instrument personnel should check the status of the floating ball in time, check whether there is scale condensation on the surface of the guide rod, and clean it up as soon as possible. Especially for the measured liquid containing impurities, the guide rod of the instrument should be cleaned regularly.
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