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Technical Specifications
| Measured Variables | Direct measurement variable: flow rate Calculated value of measured variable: volumetric flow | |
| Nominal diameter | DN6 ~ DN65 | |
| Transmitter output | (4 ~ 20) mA, output load ≤ 500Ω | |
| Communication output | RS485 interface | MODBUS-RTU communication protocol |
| Power Supply | (18-36) VDC | |
| Power consumption | < 5W | |
| Electrical interface | M12-4 core connector | |
| Accuracy | ±0.5% | |
| Repeatability | ≤0.16% | |
| Medium temperature | 0℃~80℃ | |
| Process pressure | -0.1 MPa ~ 6.3 MPa | |
| Electrical conductivity | ≥ 2 μS/cm | |
| Ambient temperature | -20℃~60℃ | |
| Storage temperature | -25℃～85℃ | |
| Relative humidity | 5%～95% | |
| Level of protection | IP67 | |
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Applications
Water Treatment & Supply – Municipal water and wastewater systems
Chemical & Petrochemical Industry – Conductive liquid process monitoring
Food & Beverage Industry – Flow measurement of conductive fluids in production lines
HVAC & Energy Systems – Heating, cooling, and thermal energy monitoring
Industrial Process Control – Chemical fiber, metallurgy, and paper manufacturing
Environmental Monitoring – Process monitoring and energy efficiency projects
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Measuring principle
The electromagnetic flowmeter operates based on Faraday’s law of electromagnetic induction. Two electromagnetic coils at the upper and lower ends generate a magnetic field. When conductive fluid passes through the meter, an electromotive force (E) is induced between the electrodes on the flow tube wall, proportional to the flow velocity (V), magnetic flux density (B), and electrode spacing (D).
Induced Voltage Formula:
E = K × B × V × D
Where:
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E – Induced electromotive force
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K – Meter tube constant
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B – Magnetic flux density
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V – Average flow velocity
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D – Electrode spacing
The induced voltage signal is transmitted to the converter for analog and digital processing. The instantaneous flow and totalized flow are then displayed on the converter’s screen.
