Electromagnetic Flow Meter DN3 to DN3000mm with ±0.5% Accuracy and 1500:1 Range for Conductive Liquids
Precision electromagnetic flow meter with DN3 to DN3000mm diameter range, ±0.5% accuracy, and 1500:1 measuring ratio. Features no moving parts, corrosion-resistant materials, and bidirectional flow measurement. Ideal for water supply, chemical, and industrial applications requiring reliable conductive liquid monitoring.
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN3 to DN3000mm |
| Accuracy | ±0.5% (options for ±0.3% or ±0.2%) |
| Lining Materials | PTFE, PFA, F46, neoprene rubber, polyurethane rubber, high-temperature rubber |
| Electrode Materials | SUS316, Hastelloy B/C, titanium, tantalum, platinum-iridium alloy, tungsten carbide coated |
| Medium Temperature | -20℃ to 180℃ |
| Nominal Pressure | 0.6 to 4.0Mpa (customizable) |
| Measuring Range | 1500:1 ratio, flow rate <15m/s |
| Protection Grade | IP65, IP68 (optional) |
Based on Faraday's law of electromagnetic induction, the flowmeter operates by detecting electrodes installed perpendicular to both the tube axis and magnetic lines. As conductive liquid flows through the measurement tube, it cuts magnetic lines, generating an induced electromotive force proportional to flow velocity.
Where:
E - Induced electromotive force
K - Magnetic field distribution coefficient
B - Magnetic induction strength
V - Average liquid velocity
D - Electrode distance (tube diameter)
- Simple sensor structure with no moving parts for unobstructed fluid flow
- Capable of measuring dirty, corrosive, and suspended solid-liquid media
- Accuracy unaffected by temperature, viscosity, density, or conductivity variations
- Output proportional only to average velocity, independent of flow profile
- Fast response with no mechanical inertia, suitable for pulsating flow
- Bidirectional flow measurement capability
- Wide size range from DN3 to DN3000mm
Water supply systems, chemical processing, coal industry, environmental protection, light industry, metallurgy, paper manufacturing, and other industries requiring precise conductive liquid flow measurement.
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