Large caliber LDG electromagnetic flowmeter LDG-700 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、 Main technical data:

　　Power supply: 85V-250VAC/16V-36VDC;

　　Instrument display: High definition backlit LCD display (126 x 48 dot matrix), which can simultaneously display instantaneous, cumulative flow and other information and related units, with Chinese/English menu support;

　　Communication interface: It has digital communication signal outputs such as RS485, RS232, Hart, and Modbus;

　　Anti interference: Built in comprehensive anti-interference multi-level protection circuit with full digital processing, significant anti-interference performance, effectively eliminating on-site vibration and power frequency interference;

　　Data storage: With comprehensive data backup and recovery functions, on-site maintenance free;

　　Excitation method: Three types of excitation frequencies are standard, 1/10, 1/16, and 1/25 power frequency (1/4, 1/8, and 1/32 are optional), to meet more measurement needs;

　　Operation method: It has two functions: key operation and magnetic key operation. The operation is simple and fast, easy to learn and understand. Infrared handheld keyboard for remote non-contact operation.

　　4、 Installation:

　　You should stay away from equipment with strong magnetic fields.

　　Avoid places with strong vibrations and corrosiveness.

　　Pipelines that do not allow flow interruption should be equipped with shut-off valves and bypass pipelines when installing flow meters.

　　There should also be a certain straight pipe section upstream of the flowmeter sensor, usually between 5D and 10D.

　　It can be installed horizontally, vertically, and diagonally, but it is necessary to ensure that the measuring tube is coaxial with the process pipeline and that the measuring tube is always filled with liquid.

　　The measuring tube, housing, shielded wires of the leads, and the pipelines at both ends of the sensor must be reliably grounded.

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• Large caliber LDG electromagnetic flowmeter