This product can measure the flow rate of general conductive liquids, as well as the volume flow rate of liquid-solid two-phase flow, high viscosity liquid flow, and salt, strong acid, and strong alkali liquids.
1、 Working principle:
The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductor moves in a magnetic field, an induced electromotive force is generated at both ends of the conductor perpendicular to the direction of the magnetic field and the direction of motion. The magnitude of electromotive force is directly proportional to the speed of conductor motion and the magnetic induction intensity of the magnetic field.
2、 Technical features:
1. Suitable for liquid flow detection with conductivity greater than 5 μ s/cm. Changes in conductivity do not affect changes in performance;
2. Electromagnetic flow meters have long-term high measurement accuracy and are actually not affected by the physical properties of the fluid;
3. Easy to put into operation, the flowmeter is automatically set within the range of 0-10m/s, without the need to change the measurement range;
4. All components in contact with the tested medium have good corrosion resistance and wear resistance, with a wide range of applications;
5. There are no movable parts or flow blocking components in the pipeline, and there is almost no additional pressure loss during measurement;
6. The measurement results are independent of physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity, etc.
3、 Technical parameters:
Nominal diameter (mm): Pipeline PTFE lining: DN10~DN600 Pipeline rubber lining: DN40~DN1200
Flow direction: positive, negative, net flow
Range ratio: 150:1
Repetitive error: ± 0.1% of the measured value
Accuracy level: Pipeline type: 0.5 level, 1.0 level
Temperature of the tested medium: ordinary rubber lining: -20 to+60 ℃
High temperature rubber lining: -20 to+90 ℃
PTFE lining: -30 to+100 ℃
High temperature PTFE lining: -20 to+180 ℃
Rated working pressure: (high pressure can be customized) DN6-DN80: ≤ 1.6MPa DN100-DN250: ≤ 1.0MPa
DN300－DN1200：≤0.6MPa
Conductivity range: The conductivity of the measured fluid is ≥ 5 μ s/cm
Current output, load resistance: 0-10mA: 0-1.5k Ω 4-20mA: 0-750k Ω
Digital frequency output: The upper limit of the output frequency can be set within 1-5000Hz with a transistor collector open circuit bidirectional output with photoelectric isolation.
4、 Installation:
1. Try to avoid ferromagnetic objects, high radio frequency, strong vibration interference sources, and equipment with strong electromagnetic fields (such as high-power motors, large transformers, etc.) to avoid magnetic fields affecting the working magnetic field and flow signal of the sensor.
2. It should be installed in a dry and ventilated place as much as possible, and should not be installed in damp or water prone areas.
3. It is advisable to avoid direct sunlight and rain as much as possible, and the ambient temperature should be between -20 and 60 ℃ with a relative humidity of less than 95%.
4. Choose a place that is easy to maintain and has convenient activities.
5. The flowmeter should be installed at the rear end of the water pump and must not be installed on the suction side.
陈超 18015125918
