Based on Faraday's Law of Electromagnetic Induction, a pair of detection electrodes is mounted on the tube wall perpendicular to both the axis of the measuring tube and the magnetic lines of force. When the conductive liquid flows along the axis of the measuring tube, it cuts the magnetic lines of force to generate an induced electromotive force, which is detected by the two electrodes. The magnitude of this induced electromotive force is directly proportional to the flow rate, and its value is expressed by the formula:

E=KBVD

Where:E – Induced electromotive forceK – Coefficient related to magnetic field distribution and axial lengthB – Magnetic induction intensityV – Average flow velocity of the conductive liquidD – Electrode spacing (inner diameter of the measuring tube)

The sensor transmits the induced electromotive force E as a flow signal to the converter. After a series of processes including amplification, conversion, filtering and digital processing, the converter displays the instantaneous flow and cumulative flow on a backlit dot matrix liquid crystal display. The converter is equipped with a 4～20mA current output, pulse and frequency outputs, as well as communication interfaces such as RS-485, and supports HART and MODBUS protocols.

PRODUCT ADVANTAGES

Ultra-low power consumption design with five 3.6V lithium batteries for 5~10 years of continuous operation, and easy battery replacement;
Equipped with a large-screen LCD display that shows multiple flow parameters including instantaneous flow, flow velocity, positive and negative total cumulative flow, as well as prompt symbols;
No moving or resistance parts inside the measuring tube, eliminating winding and clogging issues, with almost no pressure loss, enabling long-term reliable and continuous operation;
Wide measurement range with a flow velocity measuring range of 0.05m/s~10m/s;
Stable measurement with accuracy unaffected by changes in physical parameters of the measured medium such as temperature, pressure, viscosity and density;
With pulse output and GSM wireless remote data transmission functions;
Built-in data storage function that can save 1000 sets of flow data, with freely configurable data storage intervals and convenient data query;
Wide application range for sewage treatment, water conservancy projects, urban water supply and other fields;
Stable operation, high measurement accuracy and strong anti-interference capability.

TECHNICAL PARAMETERS

Performance	Technical Parameters
Nominal Diameter	DN3——DN3000mm
Accuracy	±0.5% of indicated value; ±0.3% or ±0.2% of indicated value optional
Lining Material	Polytetrafluoroethylene (PTFE), PFA, F46, Neoprene Rubber, Polyurethane Rubber, High-Temperature Rubber
Electrode Material	SUS316, Hastelloy B/C, Titanium (Ti), Tantalum (Ta), Platinum-Iridium Alloy, Stainless Steel Coated with Tungsten Carbide
Electrode Type	Standard Type, Scraper Type, Replaceable Type
Connection Mode	Flange Connection, Insertion Connection, Clamp Connection, Wafer Connection, Union Connection
Medium Temperature	Integrated Type: -20℃～+60℃
	Split Type: Neoprene Rubber Lining, Polyurethane Lining: -10℃～+80℃
	PTFE Lining, PFA Lining, F46 Lining: -10℃～+160℃
Nominal Pressure	0.6～4.0Mpa (Special pressure can be customized)
Ambient Temperature	-25℃～+60℃
Ambient Humidity	5～100%RH (Relative Humidity)
Medium Conductivity	≥20μs/cm
Measurement Range	1500:1, Flow Velocity Setting <15m/s
Structure Type	Integrated Type, Split Type, Immersion Type, Explosion-Proof Type
Protection Class	IP65, IP68 optional
Explosion-Proof Mark	ExmdIIT 4

APPLICATION FIELD

Electromagnetic flowmeters are widely used in industries such as petroleum, chemical industry, iron and steel, food, electric power, papermaking, metallurgy, water supply and drainage, petrochemical industry, and medical treatment.

A single electromagnetic flowmeter can meet the flow measurement needs of various industries mentioned above.