The degree of influence of the magnetic field on the electromagnetic flow sensor varies greatly depending on the structural material and design of the sensor protective housing.
For example, some shells are made of ferromagnetic materials such as steel plates, which have a better magnetic shielding effect and have less impact; others are made of non-ferromagnetic materials such as aluminum and glass steel, which have a greater impact.
In addition, the direction between the interference magnetic field and the magnetic field of the flow sensor has a different degree of influence. Now when there is no quantitative analysis and data, only some field experience data.
For example: between a DN900 flow sensor with a steel plate protective shell and a three-phase transformer with hundreds of kilowatts at a distance of 8m, the impact can be ignored.