Sell LDG-250 electromagnetic flowmeter LDG-250 electromagnetic flowmeter direct sales

Description :

　　This product has long-term high measurement accuracy that is not affected by fluid physical properties, and the measurement accuracy can reach level 0.5. The flowmeter is automatically set within the range of 0-10m/s without changing the measurement range.

　　1、 Working principle:

　　This product is based on Faraday's law of electromagnetic induction. In an electromagnetic flowmeter, the conductive medium inside the measuring tube is equivalent to a conductive metal rod in Faraday's test, and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through, an induced voltage is generated. The induced voltage generated by measuring the two electrodes inside the pipeline. The measuring pipeline achieves electromagnetic isolation from the fluid and measuring electrodes through non-conductive lining (rubber, Teflon, etc.).

　　2、 Characteristics:

　　The structure is simple, reliable, without moving parts, and has a long working life.

　　No flow blocking components, no pressure loss or fluid blockage.

　　No mechanical inertia, fast response, good stability, can be applied to automatic detection, adjustment, and program control systems.

　　The measurement accuracy is not affected by the type of measured medium and its physical parameters such as temperature, viscosity, density, pressure, etc.

　　Different combinations of PTFE or rubber lining materials and electrode materials such as HC, HB, 316L, Ti can adapt to the needs of different media.

　　There are various flow meter models available, including pipeline type and plug-in type.

　　Using EEPROM memory, the storage of measurement and operation data ensures safety and reliability.

　　It has two forms: integrated and separated.

　　High definition LCD backlit display.

　　3、 Structure:

　　a、 Measurement catheter: composed of stainless steel catheter, lining, and connecting flange, it is a carrier for measuring the on-site working conditions of the measured liquid.

　　b、 Measurement electrode: a pair of electrodes installed on the inner wall of the measurement catheter, perpendicular to the axial flow direction, to generate signals for the measured liquid.

　　c、 Excitation coil: The upper and lower excitation coils that generate a magnetic field inside the measuring conduit.

　　d、 Iron core and magnetic yoke: Introduce the magnetic field generated by the excitation coil into the liquid and form a magnetic circuit.

　　e、 Shell: Instrument outer packaging.

　　2. Converter:

　　Is it an intelligent secondary meter that amplifies and processes traffic signals?? After calculation by the microcontroller, it can display flow rate, cumulative measurement, and output signals such as pulses and analog currents for measuring or controlling fluid flow rate.

　　3. Product assembly form:

　　It is divided into two forms: one-piece and split type.

　　a、 Integrated: The sensor and converter are installed together.

　　b、 Split type: Sensors and converters are installed separately, forming a flow metering system through connecting cables.

　　c、 To meet the requirements of measuring different media, there are multiple choices for the lining and electrode materials of sensors.

　　4、 Installation position and flow direction:

　　The axis of the measuring electrode must be approximately horizontal;

　　The measuring pipeline must be completely filled with liquid;

　　There should be a minimum of 5xD (D is the inner diameter of the flowmeter) of straight pipe section in front of the flowmeter, and a minimum of 3xD (D is the inner diameter of the flowmeter) behind it

　　A straight pipe section of diameter; For the convenience of installation and disassembly, a pipeline expansion joint can be installed after the flowmeter.

　　The direction of fluid flow and the arrow direction of the flowmeter *;

　　Vacuum inside the pipeline can damage the lining of the flowmeter, so special attention should be paid;

　　There should be no strong electromagnetic field near the flowmeter; There should be ample space near the flowmeter for installation and maintenance;

　　If there is vibration in the measuring pipeline, there should be fixed supports on both sides of the flowmeter;

　　When measuring mixed liquids of different media, the distance between the mixing point and the flowmeter should be at least 30 × D (D is the inner diameter of the flowmeter) in length.

AfterSalesService :

• LDG-250 electromagnetic flowmeter