Electromagnetic flowmeter manual

Abstract: The information of electromagnetic flowmeter manual (detailed graphic and text of instructions for use) is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Electromagnetic Flowmeter Instruction Manual (12 sections in total) Contents: 1. Product Features, Uses and Scope of Electromagnetic Flowmeter 2. Working Principle of Electromagnetic Flowmeter 3. Product Type and Composition of Electromagnetic Flowmeter 4. Electromagnetic Flowmeter Product Technical performance indicators. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. Electromagnetic flowmeter instruction manual (12 sections in total with graphic and text) catalog (longer length, click to go directly): 1. Electromagnetic flowmeter product features, uses and scope of application 2. Electromagnetic flowmeter working principle 3. Electromagnetic flowmeter product type and Composition 4. Technical performance indicators of electromagnetic flowmeter products 5. Dimensions and installation dimensions of electromagnetic flowmeter products 6. Converter menu structure and parameter setting 7. Installation diagram of electromagnetic flowmeter 8. Electrical wiring Handling 10. Supplying complete sets 11. Transportation and storage 12. Running an electromagnetic flowmeter manual with pictures and texts can help you more accurately understand the details of the installation, use and maintenance of electromagnetic flowmeters, and avoid stepping on pits. The following is the specific content of the manual. Click to enter the electromagnetic flowmeter selection product page. 1. Description of product features, uses and scope of application 1.1 Features LD series electromagnetic flowmeters have the following characteristics: Not affected by changes in fluid density, viscosity, temperature, pressure and electrical rate, the linear measurement principle can achieve high-precision measurement ; ● There is no obstruction in the measuring tube, the pressure loss is small, and the requirements for straight pipe sections are low; ● The nominal diameter DN6-DN2000 covers a wide range, and there are various options for lining and electrodes, which can meet the requirements of measuring various conductive fluids; ● The converter adopts Programmable frequency low-frequency rectangular wave excitation improves the stability of flow measurement and low power loss; The converter adopts 16-bit embedded microprocessor, all digital processing, fast calculation speed, strong anti-interference ability, reliable measurement and high accuracy , the flow measurement range can reach 1500:1; ●High-definition backlight LCD display, full Chinese menu operation, easy to use, simple to operate, easy to learn and understand; ●With RS485 or RS232O digital communication signal output; ●With conductivity measurement function , It can determine whether the sensor is empty, with self-test and self-diagnosis functions; ● Adopt SMD devices and surface mount (SMT) technology, with high circuit reliability; ● Can be used in corresponding explosion-proof occasions. 1.2 Main application KDLD series electromagnetic flowmeter can be used to measure the volume flow of conductive fluid in closed pipeline. It is widely used in flow measurement and control in industrial and agricultural production processes such as petrochemical industry, iron and steel metallurgy, water supply and drainage, water conservancy irrigation, water treatment, environmental protection sewage measurement and control, papermaking, medicine, food and other industrial and agricultural production processes. 1.3 Ambient conditions for use Ambient temperature: Sensor -25℃～+60℃ Converter -10℃～+60℃ Relative temperature: 5%-95% 1.4 Working conditions Maximum temperature of fluid: Integrated type 70℃ Separate type: Poly four Vinyl Fluoride Lining 150℃ Neoprene Lining 80℃ Polyurethane Rubber Lining 70℃ Fluid Conductivity:≥5uS/cm 2. Description of working principle 2.1 Mathematical and physical model The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductor moves in the magnetic field, induced electromotive force will be generated at both ends of the conductor in the direction perpendicular to the direction of the magnetic field and the moving direction. The magnitude of the electromotive force is proportional to the velocity of the conductor and the magnitude of the magnetic induction of the magnetic field. As shown in Figure 1 below, when the conductive fluid flows through an insulated conduit with an inner diameter of D (m) equipped with a pair of measuring electrodes at an average velocity V (m/s), the conduit is in a uniform magnetic induction intensity of B ( T) in the magnetic field, then an induced electromotive force E(V) will be generated on a pair of electrodes, and its direction is perpendicular to the direction of the magnetic field and the fluid. Faraday's law of electromagnetic induction is: E=B·D·V Formula (1) 2.2 Converter circuit structure The electromagnetic flow converter provides a stable excitation current to the excitation coil of the electromagnetic flow sensor on the one hand, so that B is a constant, and at the same time amplifies and converts the electromotive force induced by the sensor into a standard current signal or frequency The signal is convenient for the display, control and adjustment of the flow. Figure 2 below shows the circuit structure of the converter. 3. Product type and composition 3.1 Product composition The electromagnetic flowmeter is composed of electromagnetic flow converter and electromagnetic flow sensor. The separate type also needs a special double-shielded cable to connect the converter and the sensor. 3.2 Product type KDLD series electromagnetic flowmeter is divided into two structural forms: integrated type and separated type. Can be used in specified explosion-proof places. The sensor is available with electrodes of 7 different materials and linings of 4 different materials. Changing the program to a larger value can cancel the upper limit alarm. 9.5 Lower limit alarm The lower limit alarm indicates that both the output current and output frequency (or pulse) are over-limit.
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