Magnetic flap level gauge common problems and faults and precautions

Magnetic flap level gauge FAQs and faults and precautions for you to solve the common common liquid level problems and failures. Occasionally, the on-site adjustment will find that the float is not flexible enough to move up and down. This is mostly due to improper installation. The magnetic flap level meter should pay attention to whether the center of the upper and lower flanges is on a line and is perpendicular to the horizontal plane. In general, the angle with the horizontal plane is preferably not less than 87 degrees. If the deviation is large, it may affect the smooth movement of the float.

The level gauge was calibrated correctly. After the application, the float was found to have “sucked” at a certain position. This is mainly caused by the distance between the liquid level gauge and the steel plate when it is installed through the steel platform. Therefore, installation through the steel platform requires special attention to the spacing between the tube wall of the level gauge and the cut edge of the platform. According to the experience of on-site use, Shanghai Yunou, this distance is about 100mm, which can ensure no impact on the magnetic float.

When the level gauge is on-site, special attention should be paid to opening the upper gate valve and then opening the lower gate valve. Glass tube level meter This is because the bottom of the connecting tube of the liquid level gauge is equipped with a thrust spring which protects the float. Otherwise, the effect of large differential pressure may crash the float and make the liquid level gauge unusable.

After the level gauge has been used for a period of time, it is difficult for the float to float and the float to move is inflexible. This is basically due to the iron float or other dirt on the magnetic float. The medium may be evacuated first, and then the float may be removed to eliminate iron chips or other contaminants on the magnetic float.

If the closed glass tube used for on-site instruction is broken due to transportation or other reasons, the glass tube can be replaced by domestic glass. But it's best to vacuum. Shanghai Yunou, heavy hammer level meter also pay attention to whether the vertical glass tube, so as not to affect the indicator's instructions.

During the use of the level gauge, if the output signal generates frequent disturbances or interference pulses, it is necessary to check whether the signal cable shielding is reliably grounded. The working connection is whether the resistance can meet the requirements. If the interference is still not completely eliminated, a signal isolator can be used.

　 When using the level gauge , pay special attention to it. Never use a strong magnet to pull the float on the outside of the connecting tube to check it. Otherwise it will cause the magnetic float to change its polarity and even weaken the float so that it is difficult to work normally.

Select intrinsically safe liquid level timing, especially pay attention to the impedance of the level gauge and safety barrier. Because the level gauge power supply voltage is 14.5-36VDC, which is less than the 14.5-45VDC of the general transmitter, it cannot work normally when the load is large.
Magnetic flap level gauge common problems and faults and precautions

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