Instructions for using DN200 electromagnetic flowmeter

Description :

　　This product has complete and practical functions, intuitive display, and easy operation, which can reduce the inconvenience caused by the English menu of other electromagnetic flow meters.

　　1、 Working principle

　　The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductor moves in a magnetic field, an induced electromotive force is generated at both ends of the conductor perpendicular to the direction of the magnetic field and the direction of motion. The magnitude of electromotive force is directly proportional to the speed of conductor motion and the magnetic induction intensity of the magnetic field.

　　2、 Technical parameters

　　Nominal diameter (mm): Pipeline PTFE lining: DN10~DN600 Pipeline rubber lining: DN40~DN1200

　　Flow direction: positive, negative, net flow

　　Range ratio: 150:1

　　Repetitive error: ± 0.1% of the measured value

　　Accuracy level: Pipeline type: 0.5 level, 1.0 level

　　Temperature of the tested medium: ordinary rubber lining: -20 to+60 ℃

　　High temperature rubber lining: -20 to+90 ℃

　　PTFE lining: -30 to+100 ℃

　　High temperature PTFE lining: -20 to+180 ℃

　　Rated working pressure: (high pressure can be customized) DN6-DN80: ≤ 1.6MPa DN100-DN250: ≤ 1.0MPa

　　DN300－DN1200：≤0.6MPa

　　Conductivity range: The conductivity of the measured fluid is ≥ 5 μ s/cm

　　Current output, load resistance: 0-10mA: 0-1.5k Ω 4-20mA: 0-750k Ω

　　Digital frequency output: The upper limit of the output frequency can be set within 1-5000Hz with a transistor collector open circuit bidirectional output with photoelectric isolation.

　　3、 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 flow direction of the fluid 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.

AfterSalesService :

• Instructions for using DN200 electromagnetic flowmeter