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Good Quality Mag Metermag Insertion Type Magnetic Flow Meter Insert Electromagnetic Flowmeter

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

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What are the external interference problems of domestic wastewater electromagnetic flowmeter and how to solve the electromagnetic flowmeter is the use of electromagnetic induction principle, through the electromagnetic wave generated by the external magnetic field, the electromagnetic wave is induced to measure the flow speed of electromagnetic waves. The flow field signal is less vulnerable to external interference, and the interference sources are mainly stray current, static electricity, electromagnetic wave and magnetic field.

 

  1. Magnetic field interference:

 

Generally, only electromagnetic flow sensors can be used to stay away from strong electric fields. According to the structural design of the sensor, the ability of the electromagnetic flowmeter to resist the magnetic field is different, for example, the sensor excitation coil protective shell made of non-magnetic materials (such as aluminum, plastic), and the weak magnetic field resistance and the strong steel structure.

 

  1. Electrostatic and electromagnetic interference:

 

Between the electromagnetic flowmeter sensor and the converter, the introduction of static electricity and electromagnetic waves through the signal line can usually be prevented if the shielding is good (for example, the signal line uses a shielded cable and the cable is placed in a protective iron tube). However, there have also been cases where the prevention and control effect of strong electromagnetic waves is not good, that is, the converter is moved near the sensor, the connection of the signal cable is shortened, or the single-type instrument without an external cable is used.

 

  1. Pipeline stray current:

 

Electromagnetic flowmeter mainly relies on good grounding protection, the general grounding resistance is less than 100Q, and can not be shared with other motor appliances. In some cases, the electromagnetic flowmeter can work normally without grounding, but we think that even if the grounding is good, it is also appropriate. Because once the good environmental conditions do not exist, the instrument will fail, thus affecting the use of various checks will bring a lot of trouble. Sometimes, although the electromagnetic flowmeter is well grounded, it affects the normal measurement of the electromagnetic flowmeter because the stray current of the pipeline is too strong (such as the electrolytic process pipeline and the cathodic protection pipeline), and the electromagnetic flowmeter must be insulated from the tube.

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    More Electromagnetic Flow Meter

    electromagnetic flowmeters have emerged as indispensable tools for industries that demand accurate and reliable flow measurements. Their advanced technology, coupled with the ability to operate in diverse environments and handle various conductive liquids, positions them as a preferred choice in applications ranging from water management to chemical processing. As technology continues to evolve, electromagnetic flowmeters are likely to witness further advancements, contributing to increased efficiency and precision in liquid flow measurement across different sectors.

    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
    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

    Electromagnetic flowmeter is a speed meter to measure the volume flow of conductive media. While carrying out on-site monitoring and display, it can output standard current signals for recording, adjustment and control, realizing automatic control of detection, and realizing long-distance transmission of signals. It can be widely used in water, chemical, coal, environmental protection, textile, metallurgy, paper and other industries in the flow measurement of conductive liquid. The structure of the instrument has one type and one type.

    Performance Technical parameter
    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
    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