Electromagnetic flow meter may look simple, but behind every reading lies real engineering - from the sensor and electrodes to the liner, transmitter, and excitation system.
Following are the core Components of an Electromagnetic Flow Meter
A high-performance electromagnetic flow meter is typically composed of the following key parts:
1. Sensor Body
Often referred to as the "heart" of the flow meter, it generates the magnetic field and detects the flow velocity of the conductive fluid.
It includes critical elements such as the measuring tube, excitation coils, electrodes, and liner.
2. Transmitter
Responsible for signal processing and output. It converts the weak voltage signals induced by the electrodes into standard flow signals (such as 4-20mA, Modbus, HART, etc.) for the control system to read.
3. Electrodes
These come into direct contact with the medium and detect the potential difference generated by the flowing fluid. The choice of electrode material (e.g., 316L, Hastelloy, Titanium, Tantalum) determines corrosion resistance.
4. Liner
Acts as the protective barrier of the flow meter, defining its resistance to temperature, abrasion, and chemical corrosion. Common materials include PTFE, F46, and rubber.
5. Excitation System
Provides a stable magnetic field, typically using DC pulse excitation or dual-frequency excitation technology to ensure high accuracy and strong anti-interference performance.
Every part, every weld, every calibration matters.
We take pride in what we build:
✅ First in China with ATEX intrinsic safety certification
✅ Accuracy up to 0.2%, world-class stability
✅ Four-electrode design, no grounding ring needed
✅ Fully in-house R&D and automated production, 60,000 units per year
Precision Comes from Consistent Craftsmanship
An electromagnetic flow meter may look simple on the outside - but inside, it's all about teamwork between the sensor, transmitter, electrodes, liner, and excitation system.
The sensor reads the flow, the electrodes pick up the signal, the liner protects against corrosion, and the excitation system keeps the magnetic field steady.
If just one part isn't right, accuracy goes out the window.
That's why we're strict about how we build them.
From coil winding to liner molding, welding to insulation, every step is checked and calibrated automatically.
Not for show - but to make sure every flow meter performs reliably in the field, day after day.
