Electromagnetic flowmeter is an induction type measuring the flow volume of conductive medium in the tube according to Faraday's law of electromagnetic induction. It selects the embedded technology of the single chip to complete the digital excitation. The electromagnetic flowmeter is used on the CAN fieldbus. It is a domestic initiative and the skill is reached. Leading domestic level. In addition to measuring the flow of conductive liquids, the ABGD electromagnetic flowmeter can also measure the volumetric flow of liquid-solid two-phase flow, high viscosity liquid flow, and salts, strong acids, and strong alkalis. The ABGD electromagnetic flowmeter, which appears on the site of satisfaction, can also output 4 to 20mA current signals for recording, conditioning and control. It has been widely used in chemical, environmental, metallurgical, pharmaceutical, papermaking, water supply and drainage and other industrial skills and management. department.
The principle of smart electromagnetic flow meter measurement is based on Faraday's law of electromagnetic induction. The measuring tube of the flowmeter is a non-magnetic alloy short tube lined with insulating material. Two electrodes pass through the wall along the diameter and are fixed on the measuring tube. The electrode tip is flush with the inside and outside of the fabric. When the excitation coil is demagnetized by a two-way square wave pulse, a working magnetic field with a magnetic flux density of B will occur in the direction perpendicular to the axis of the measuring tube. At this moment, if a liquid having a certain conductivity flows through the measuring tube, the force line E will be induced by cutting the magnetic force line. The electromotive force E is proportional to the magnetic flux density B, and the product of the tube inner diameter d and the uniform flow velocity V is measured. The electromotive force E (flow signal) is detected by the electrode and sent to the converter via the cable. After the converter expands the flow signal, it can show the fluid flow, and can output pulses, simulate the current and other signals, and use it for flow control and conditioning.
Flowmeter device precautions:
a, the device size must be accurate, or simply leak or device is not on.
b. The fluid flow direction must be consistent with the flow direction arrow on the sensor surface.
c. The electrode axis of the flowmeter must be approximately horizontal, otherwise it will affect the measurement accuracy.
d. The flanges on the two ends of the sensor must be kept parallel or simply leaked.
e. In order to prevent vortex movement behind the device, it should be ensured that the technical piping, seals, and flowmeters cannot be staggered in coaxial connection.
f. When installing the flowmeter, it is forbidden to conduct electric welding close to the flange of the flowmeter to prevent burned flowmeter fabrics.
g. For the technical pipeline of different nature, the corresponding grounding method should be used (see sensor grounding).
h. With regard to corrosive media, the best device should be straight, and the measured media should move from bottom to top. This can prevent solid particles from accumulating in the flowmeter pipe, making the fabric evenly corroded and extending its service life.
i. Regarding the measuring tube diameter larger than 200mm, for convenience, the retractable head Changzhou Chengfeng Flow Meter Co., Ltd. has gained the recognition of the industry for its integrity, strength and product quality. Welcome friends from all walks of life to visit, guide and negotiate business.
The principle of smart electromagnetic flow meter measurement is based on Faraday's law of electromagnetic induction. The measuring tube of the flowmeter is a non-magnetic alloy short tube lined with insulating material. Two electrodes pass through the wall along the diameter and are fixed on the measuring tube. The electrode tip is flush with the inside and outside of the fabric. When the excitation coil is demagnetized by a two-way square wave pulse, a working magnetic field with a magnetic flux density of B will occur in the direction perpendicular to the axis of the measuring tube. At this moment, if a liquid having a certain conductivity flows through the measuring tube, the force line E will be induced by cutting the magnetic force line. The electromotive force E is proportional to the magnetic flux density B, and the product of the tube inner diameter d and the uniform flow velocity V is measured. The electromotive force E (flow signal) is detected by the electrode and sent to the converter via the cable. After the converter expands the flow signal, it can show the fluid flow, and can output pulses, simulate the current and other signals, and use it for flow control and conditioning.
Flowmeter device precautions:
a, the device size must be accurate, or simply leak or device is not on.
b. The fluid flow direction must be consistent with the flow direction arrow on the sensor surface.
c. The electrode axis of the flowmeter must be approximately horizontal, otherwise it will affect the measurement accuracy.
d. The flanges on the two ends of the sensor must be kept parallel or simply leaked.
e. In order to prevent vortex movement behind the device, it should be ensured that the technical piping, seals, and flowmeters cannot be staggered in coaxial connection.
f. When installing the flowmeter, it is forbidden to conduct electric welding close to the flange of the flowmeter to prevent burned flowmeter fabrics.
g. For the technical pipeline of different nature, the corresponding grounding method should be used (see sensor grounding).
h. With regard to corrosive media, the best device should be straight, and the measured media should move from bottom to top. This can prevent solid particles from accumulating in the flowmeter pipe, making the fabric evenly corroded and extending its service life.
i. Regarding the measuring tube diameter larger than 200mm, for convenience, the retractable head Changzhou Chengfeng Flow Meter Co., Ltd. has gained the recognition of the industry for its integrity, strength and product quality. Welcome friends from all walks of life to visit, guide and negotiate business.
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