Intelligent electromagnetic flowmeter

Intelligent electromagnetic flowmeter

characteristic
1. Measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity;
2. Measure the flow components inside the tube, with no pressure loss and low requirements for straight pipe sections;
3. Reasonably selecting sensor lining and electrode materials, which have good corrosion resistance and wear resistance;
4. The converter adopts excitation mode, with low power consumption and stable zero point. The flow range can reach 150:1;
5. The converter can be integrated or separated from the sensor;
6. The converter adopts a 16 bit microprocessor, 2x16 LCD display, and convenient parameter setting;
7. The flowmeter is a bidirectional measurement system equipped with three integrators: forward total, reverse total, and differential total; It can display positive and negative flow rates and has multiple outputs: current, pulse, digital communication HART；
8. The converter adopts surface mount technology (SMT) and has self checking and self diagnostic functions;
9. The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. The sensing voltage signal of the sensor is linearly related to the average flow rate, therefore the measurement accuracy.
10. There is no obstruction in the measuring pipeline, so there is no additional pressure loss; There are no movable parts inside the measuring pipeline, so the sensor has an extremely long lifespan.
11. Due to the fact that the induced voltage signal is formed in the entire space filled with a magnetic field and is the average value on the surface of the pipeline, the sensor requires a shorter straight pipe section, with a length of 5 times the diameter of the pipeline.
12. The converter adopts * microcontroller (MCU) and surface mount technology (SMT), with low performance, accuracy, power consumption, stable zero point, and convenient parameter setting. Click on the Chinese display LCD to show cumulative flow, instantaneous flow, flow rate, flow percentage, etc.
13. A bidirectional measurement system that can measure both forward and reverse flow rates. The production process and materials used ensure that the performance of the product remains stable over a long period of time.

Intelligent electromagnetic flowmeter

Electromagnetic flow meters are divided into two display modes: split type electromagnetic flow meters and integrated type electromagnetic flow meters. Series nominal diameter DN15~DN3000.

The split type electromagnetic flowmeter is an induction instrument that measures the volume flow rate of conductive medium inside a tube based on Faraday's law of electromagnetic induction, and implements digital excitation. At the same time, CAN fieldbus is used on the electromagnetic flowmeter.

The split type electromagnetic flowmeter can not only meet the on-site display requirements, but also output 4-20mA current signals for recording, adjustment, and control purposes.

Installation of flow sensor
1. Requirements for installation site.
1) When measuring mixed phase fluids, choose a location that will not cause phase separation. When measuring two-component liquids, avoid installing them downstream where mixing is not yet uniform. When measuring chemical reaction pipelines, they should be installed in the fully completed reaction section.
2) Try to avoid negative pressure inside the measuring tube as much as possible.
3) Choose a location with low vibration for integrated instruments.
4) Avoid large motors, transformers, etc. nearby to prevent electromagnetic interference.
5) A place that is easy to implement separate grounding for sensors.
6) Try to avoid corrosive gases with high concentrations in the surrounding environment as much as possible.
7) The ambient temperature should be within the range of -25-60 ℃, the relative humidity should be within the range of 10% -90%, and direct sunlight should be avoided as much as possible.
8) The liquid should have the required conductivity for measurement, and the conductivity distribution should be generally uniform. Therefore, the installation of flow sensors should avoid areas that are prone to uneven conductivity, such as adding liquid near their upstream, with the liquid addition point located downstream of the sensor.