EIT LiQlyzer Electromagnetic Flow Meter
Why Electromagnetic Flowmeter
A volumetric flowmeter with no moving parts, such as an electromagnetic flowmeter, is ideal for wastewater applications or any dirty liquid that is conductive or water-based. In general, magnetic flow meters will only not work with hydrocarbons, distilled water, or many non-aqueous solutions). Magmeters are also ideal for applications requiring low pressure drop and low maintenance.
Working principle of Electromagnetic Flowmeter
Faraday's Principle A flowmeter's operation is based on Faraday's Law, which states that the voltage induced across any conductor as it moves at right angles through a magnetic field is proportional to the velocity of that conductor.
Faraday's Formula
E is proportional to V x B x D where:E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conductor
To apply this principle to magnetic flow meter flow measurement, it is first necessary to state that the fluid being measured must be electrically conductive for the Faraday principle to apply.Faraday's Law, when applied to the design of magnetic flowmeters, states that signal voltage (E) is proportional to average liquid velocity (V), magnetic field strength (B), and conductor length (D) (which in this instance is the distance between the electrodes). A magnetic field is established across the entire cross-section of the flow tube in the case of wafer-style magnetic flowmeters. If we consider this magnetic field to be the measuring element of the magnetic flowmeter, we can see that it is exposed to hydraulic conditions throughout the entire cross-section of the flowmeter. The magnetic field radiates outward from the inserted probe in insertion-style flowmeters.
 Tri-clamp Electromagnectic Flow Meter |
 Seperate Electromagnectic Flow Meter |
 Electromagnectic Flow Meter |
| Size | DN3-DN3000 | |
| Nominal Preassure | 0.6-1.6Mpa(2.5Mpa ; 4.0Mpa ; 6.4Mpa…Max 42Mpa) | |
| Accuracy | 0.5%(Standard) ; 0.3% ; 0.2%(Optional) | |
| Liner | PTFE ; Neoprene ; Hard Rubber ; EPDM ; FEP ; Polyurethane ; PFA ; Teflon ; F46 | |
| Electrode Type | General type ; Scraper type ; Replaceable type | |
| Electrode Material | SUS316L, Hastelloy B, Hastelloy C ; Titanium ; Tantalum Platiniumiridium ; Stainless steel covered with tungsten carbide | |
| Structure Type | Integral type ; Remote type ; Submersible type ; Ex-proof type | |
| Medium Temperature | -20 - 60°C(Integral type) Remote type(Neoprene,Hard Rubber,Polyurethane,EPDM) -10 - 80°C Remote type(PTFE/PFA/FEP) -10 - 160°C | |
| Ambient Temperature | -20 - 60°C | |
| Relative Humidity | 5-100% | |
| Measuring Range | 1500:1,flow rate<15m/s | |
| Conductivity | ≥5us/cm | |
| Protection Class | IP65(Standard); IP68(Optional for remote type) | |
| Process Connection | Flange (Standard) ; Wafer ; Thread ; Tri-clamp etc (Optional) | |
| Output Signal | 4-20mA ; Pulse | |
| Communication | RS485(Standard) ; HART(Optional); GPRS/GSM (Optional) | |
| Power Supply | AC240V ; DC24V ; DC12V (optional) ; Battery Powered 3.6V (optional) | |
| Power Consumption | <20W | |
| Alarm | Upper Limit Alarm / Lower Limit Alarm | |
| Self-diagnosis | Empty Pipe Alarm, Exciting Alarm | |
| Explosion Proof | ATEX Exdll T6Gb | |
 Partial Filled Pipe Electromagnectic Flow Meter |
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| Size | DN200-DN3000 | |
| Accuracy | 2.5% | |
| Liner | Neoprene ; Polyurethane | |
| Electrode Material | SS316 ; TI ; TA ; HB ; HC | |
| Structure Type | Remote type | |
| Measuring Range | 0.05-10m/s | |
| Process Connection | Flange | |
| Output Signal | Modbus RTU, TTL electrical level | |
| Communication | RS485 ; RS232 | |
| Protection Class | Converter: IP65 ; Flow Sensor: IP65 ; IP68(Optional) | |
