PTFE Lining Material Electromagnetic Flow Meter SS316L Electrode Magnetic Flowmeters

What are the external interference problems of the electromagnetic flowmeter for domestic wastewater

Measuring medium: Conductive liquid
Diameter range: DN3mm～DN3000mm
Accuracy: ± 0.5% of the indicated value, optional ± 0.3% or ± 0.2%
Measuring range (Flow rate): 0.01m/s～15m/s

The material of construction is also a vital aspect in electromagnetic flowmeter selection. Different applications may require flowmeters made from specific materials to withstand corrosive environments or harsh chemicals. Ensuring that the materials of construction are compatible with the fluid and environmental conditions helps enhance the longevity and reliability of the flowmeter.

Another critical factor to consider is the flow rate range of the application. Electromagnetic flowmeters exhibit excellent accuracy and stability across a broad range of flow rates, making them suitable for both low-flow and high-flow applications. It is essential to match the flowmeter’s specifications, such as its minimum and maximum flow rates, with the expected flow conditions in the system.

Measuring Range： Max 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： AC220V (can be used for AC85-250V)
DC24V (can be used for DC20-36V)
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

Drainage flowmeter, sewage outfall flowmeter installation position

The electromagnetic flowmeter uses the principle of Faraday’s electromagnetic induction law to calculate the flow rate by measuring the induced potential generated by the conductive liquid flowing in the magnetic field, and has the advantages of high precision, no mechanical wear, and two-way measurement.

Electromagnetic flow meter, also known as a magmeter, operates on the principle of electromagnetic induction to measure the flow rate of conductive fluids, such as water or other liquids with a certain level of electrical conductivity. Here’s a basic explanation of the principle behind electromagnetic flow meters:

Electromagnetic flow meters offer several advantages, making them a popular choice in various industrial applications. Here are some of the key advantages of electromagnetic flow meters:

Four physical cleaning methods of electromagnetic flowmeter electrode

What are the requirements for the installation environment of the electromagnetic flow meter?

Size: DN3-DN3000mm
Nominal Pressure: 0.6-1.6Mpa(2.5Mpa/4.0Mpa/6.4Mpa…Max 42Mpa)
Accuracy: +/-0.5%(Standard), 0.3% or 0.2% (Optional)
Liner: PTFE, Neoprene, Hard Rubber, EPDM, FEP, Polyurethane, PFA
Output Signal: 4-20mA/Pulse

The electrode is the main part of the electromagnetic flowmeter used to measure the liquid flow, therefore, the choice of normal electrode material is directly related to the accuracy of the measurement and the price of the electromagnetic flowmeter.

Due to various reasons, some large diameter flowmeters used online can not be tested off-line. It has become an urgent problem to study an online calibration method which is both scientific and effective and ADAPTS to the needs of the field. At present, there are three common methods for online calibration of electromagnetic flowmeters:

Size: DN15mm-DN200mm
Nominal Pressure: 1.6Mpa
Accuracy: ±0.5%(Standard)
Liner: FEP, PFA
Output Signal: 4-20mA pulse frequency relay

Installing electromagnetic flowmeters correctly is essential for ensuring accurate and reliable flow measurement. Here are some precautions to consider when installing electromagnetic flowmeters:

The correct selection of electromagnetic flowmeter is the prerequisite to ensure that the electromagnetic flowmeter can be used well. The choice of electromagnetic flowmeter needs to be determined according to the physical and chemical properties of the tested conductive liquid medium.

Typical fault diagnosis and treatment of electromagnetic flowmeter

Electromagnetic flow meters offer several advantages, making them a popular choice in various industrial applications. Here are some of the key advantages of electromagnetic flow meters:

According to the principle formula of the electromagnetic flowmeter, the induced signal potential is not affected by the change of conductivity and temperature, pressure, density and viscosity when the liquid conductivity is uniform. However, in the actual measurement, due to the following reasons, the electrical conductivity will also have some impact on the measurement.

In the energy sector, particularly in power generation plants, electromagnetic flowmeters play a critical role in measuring cooling water flow. The accuracy and stability of these flowmeters help power plants maintain optimal operating conditions and monitor the efficiency of their cooling systems. Additionally, electromagnetic flowmeters are used in the oil and gas industry for measuring the flow of hydrocarbons, providing crucial data for production and transportation processes.

Size: DN3-DN3000mm
Nominal Pressure: 0.6-1.6Mpa(2.5Mpa/4.0Mpa/6.4Mpa…Max 42Mpa)
Accuracy: +/-0.5%(Standard) +/-0.3% or +/-0.2%(Optional)
Liner: PTFE, Neoprene, Hard Rubber, EPDM, FEP, Polyurethane, PFA
Electrode: SUS316L, Hastelloy B, Hastelloy C Titanium, Tantalum, Platinium-iridium
Structure Type: Integral type, remote type, submersible type, ex-proof type
Medium Temperature: -20~+60 degC(Integral type)
Remote type ( Neoprene ,Hard Rubber ,Polyurethane ,EPDM) -10~+80degC
Remote type(PTFE/PFA/FEP) -10~+160degC
Ambient Temperature: -20~+60deg C
Ambient Humidity: 5-100%RH(relative humidity)
Measuring Range： Max 15m/s
Conductivity： >5us/cm

Electromagnetic flowmeters exhibit remarkable performance even in challenging environmental conditions. Their construction materials are often chosen for their corrosion resistance, enabling these devices to withstand harsh chemicals and extreme temperatures. This robustness ensures continuous and reliable operation, making electromagnetic flowmeters suitable for demanding industrial applications where other flow measurement devices might struggle to perform consistently.

Medium Temperature: -20~+60 degC(Integral type)
Remote type ( Neoprene ,Hard Rubber ,Polyurethane ,EPDM) -10~+80degC
Remote type(PTFE/PFA/FEP) -10~+160degC
Ambient Temperature: -20~+60deg C
Ambient Humidity: 5-100%RH(relative humidity)
Measuring Range: Max 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

Measuring medium: Conductive liquid
Diameter range: DN3mm～DN3000mm
Accuracy: ± 0.5% of the indicated value, optional ± 0.3% or ± 0.2%
Measuring range (Flow rate): 0.01m/s～15m/s
Electromagnetic flow meter is one of the most popular flow meters. Flange type electromagnetic flow meter has been used for more than 50 years worldwide. It is widely used for all conductive liquids in every industry, such as water, acid, alkali, milk, slurry etc.

Intelligent electromagnetic flowmeters are mainly used to measure the volume flow of conductive liquid and slurry in closed pipelines, including acid, alkali, salt and other highly corrosive liquids.

Basic fault treatment of intelligent sewage electromagnetic flowmeter:

Measuring medium: Conductive liquid
Diameter range: DN3mm～DN3000mm
Accuracy: ± 0.5% of the indicated value, optional ± 0.3% or ± 0.2%
Measuring range (Flow rate): 0.01m/s～15m/s

Electromagnetic flow meters offer several advantages, making them a popular choice in various industrial applications. Here are some of the key advantages of electromagnetic flow meters:

The measuring channel of the electromagnetic flowmeter is a smooth straight pipe of an unimpeded flow detector, which is not easy to block and is suitable for measuring liquid-solid two-phase fluids containing solid particles or fibers, such as paper pulp, coal water pulp, mineral pulp, mud and sewage.

One of the defining features of electromagnetic flowmeters is their exceptional precision and accuracy in measuring fluid flow rates. The utilization of Faraday’s law of electromagnetic induction ensures that the induced voltage is directly proportional to the flow rate of the conductive liquid passing through the magnetic field. This inherent accuracy makes electromagnetic flowmeters a go-to choice in applications where precise measurements are critical, such as in pharmaceutical manufacturing, chemical processing, and water treatment.

Size: DN3-DN3000mm
Nominal Pressure: 0.6-1.6Mpa(2.5Mpa/4.0Mpa/6.4Mpa… Max 42Mpa)
Accuracy: +/-0.5%(Standard) +/-0.3% or +/-0.2%(Optional)
Liner: PTFE, Neoprene, Hard Rubber, EPDM, FEP, Polyurethane, PFA
Electrode: SUS316L, Hastelloy B, Hastelloy C Titanium, Tantalum, Platinium-iridium
Structure Type: Integral type, remote type, submersible type, ex-proof type
Medium Temperature: -20~+60 degC(Integral type)
Remote type ( Neoprene ,Hard Rubber ,Polyurethane ,EPDM) -10~+80degC
Remote type(PTFE/PFA/FEP) -10~+160degC
Ambient Temperature: -20~+60deg C
Ambient Humidity: 5-100%RH(relative humidity)
Measuring Range: Max 15m/s
Conductivity: >5us/cm

Once the installation location is determined, the next step is preparing the piping system. Ensure that the pipeline is clean and free from debris that could interfere with the operation of the flowmeter. In some cases, straight pipe runs are recommended both upstream and downstream of the flowmeter to allow for proper fluid flow development and stabilization. This helps in achieving optimal measurement accuracy.

The electromagnetic flowmeter should be installed with the flow direction aligned with the arrow on the flowmeter body. Proper orientation ensures that the magnetic field generated by the flowmeter’s coils is perpendicular to the fluid flow, allowing for accurate measurements. Additionally, it is essential to properly ground the flowmeter to minimize electrical noise and interference, ensuring the stability of the measurement signals.

The installation process involves securely mounting the flowmeter on the piping system using appropriate brackets or supports. Care should be taken to align the flowmeter properly and tighten all connections to prevent leaks. Adequate sealing measures must be implemented to prevent ingress of moisture or contaminants into the flowmeter, which could adversely affect its performance.

Selection of lining materials for electromagnetic flowmeter

Electromagnetic flowmeter is a widely used flow meter, in the process of use will inevitably appear some failures, then how to check the cause of the failure and eliminate it, the next Aister to teach you several simple troubleshooting methods.

The converter direction of an electromagnetic flowmeter refers to the orientation or alignment of the flowmeter’s electronic converter unit concerning the flow direction within the pipe. Electromagnetic flowmeters typically have a preferred or specified direction for the converter to achieve optimal performance. The converter contains the electronics and signal processing components essential for accurate flow measurement.