Magnetic flap level meter use taboo

Taboos for using magnetic flap level gauge

As a commonly used liquid level measuring instrument, the magnetic flap level gauge has been used in chemical, petroleum, electric power and other industries. It has the advantages of simple structure, intuitive measurement, and easy maintenance. However, if used improperly, it will also affect the measurement accuracy and even cause damage to the instrument. This article will introduce the magnetic flap liquid level meter in detail to help users avoid incorrect operations and ensure stable and reliable operation of the instrument.

1. Taboos in the installation environment

The installation environment of the magnetic flap level gauge has an important impact on its measurement accuracy and service life. During installation, the following environments should be avoided:

1.1 Strong magnetic field interference

The working principle of the magnetic flap level meter is to use magnetic field coupling for liquid level indication, so installation in Near large motors, transformers, induction cookers and other equipment with strong magnetic fields to prevent magnetic field interference from affecting the normal operation of the instrument. If it cannot be avoided, effective magnetic shielding measures should be taken, such as wrapping the instrument with ferromagnetic materials.

1.2 Places with severe vibrations

Severe vibrations will affect the stability of the magnetic components inside the magnetic flap level gauge, resulting in increased measurement errors and even damage to the instrument. Therefore, avoid installing the instrument on equipment with severe vibrations, such as pumps, compressors, etc. If this cannot be avoided, vibration reduction measures should be taken, such as using shock absorbers or shock absorbers.

1.3 High or low temperature environment

The measurement range of the magnetic flap level gauge is related to the ambient temperature of its use. In a high-temperature environment, the measurement error of the instrument will increase and even damage the instrument; in a low-temperature environment, problems such as liquid freezing and inaccurate instrument indications may occur. Therefore, instruments with appropriate temperature levels should be selected according to actual working conditions, and insulation or heat dissipation measures should be installed.

1.4 Flammable and explosive places

Magnetic flap level gauges generally do not have explosion-proof functions and cannot be directly installed in flammable and explosive places. If it needs to be used in such places, an explosion-proof magnetic flap level meter should be selected and the relevant explosion-proof regulations should be strictly followed during installation.

2. Taboos in media selection

The material and structure of the magnetic flap level gauge determine its applicable media range. When choosing an instrument, you should pay attention to the following taboos:

2.1 Strongly corrosive media

Strongly corrosive media will corrode the measuring tube and float of the instrument, causing increased measurement errors or even damage. meter. Therefore, when measuring highly corrosive media, instruments made of corrosion-resistant materials should be selected, such as PTFE-lined magnetic flap level gauges, PFA-lined magnetic flap level gauges, etc.

2.2 High viscosity medium

High viscosity medium will affect the sensitivity of the float, resulting in increased measurement errors. Therefore, when measuring high-viscosity media, a float with high buoyancy should be selected, and the instrument should be cleaned regularly to prevent the medium from adhering to the float.

2.3 Media containing solid particles

Media containing solid particles can easily block the measuring tube of the instrument, resulting in inaccurate measurements. Therefore, when measuringFor this type of medium, an instrument with a larger pipe diameter should be selected, and the instrument should be cleaned regularly to prevent particle clogging.

2.4 Medium with too small density

The measurement principle of the magnetic flap level gauge is based on the buoyancy principle. If the density of the medium is too small and the buoyancy is insufficient, it will lead to inaccurate measurement. Therefore, when measuring less dense media, you should choose a float with greater buoyancy, such as a float with a larger volume or lighter material.

3. Taboos during use

In addition to the installation environment and media selection, there are also some taboos that need to be paid attention to during use to ensure the measurement accuracy and service life of the instrument:

3.1 Hit the instrument at will

The measuring tube and flap of the magnetic flap level gauge are precision parts. Hitting at will may cause deformation or damage, affecting the normal operation of the instrument. . Therefore, during installation and use, you should handle it with care and avoid collisions and knocks.

3.2 Use beyond the measuring range

Each magnetic flap level gauge has its specified measuring range. Using it beyond the measuring range may lead to inaccurate measurement or even damage to the instrument. Therefore, you should read the instruction manual carefully before use to clarify the measuring range of the instrument, and avoid using it beyond the range during use.

3.3 Ignoring regular maintenance

During the use of the magnetic flap level gauge, scale will gradually accumulate on the inner wall of the measuring tube and the surface of the float, affecting the measurement accuracy. Therefore, the instrument should be cleaned and maintained regularly to keep the measuring tube and float clean to ensure normal operation of the instrument. The maintenance cycle can be determined according to actual working conditions, generally 3-6 months.

3.4 Unauthorized disassembly and repair

The internal structure of the magnetic flap level gauge is precise, and unauthorized disassembly and repair by non-personnel may cause damage to the instrument. Therefore, when the instrument fails, the manufacturer or personnel should be contacted in time for repair to avoid greater losses.

IV. Conclusion

The magnetic flap level gauge is a reliable liquid level measuring instrument, but it can only play its due role if used correctly. This article introduces the magnetic flap liquid level meter in detail, hoping that users can take it as a warning to avoid incorrect operations, ensure stable and reliable operation of the instrument, and protect industrial production.