Explanation of E+H electromagnetic flowmeter instructions for use

Analysis of Instructions for Use of E+H Electromagnetic Flowmeter

The caliber range of German E+H electromagnetic flowmeter is wider than that of other types of flow meters. E+H company provides three types of W, P and H The sensors are used in water and sewage industries (W type), chemical and food industries (P type), food and pharmaceutical industries (H type), with diameters ranging from 2 mm to 2 meters. The transmitter can provide multiple choices of 10, 50, 23, and 53. 10 is an economical type developed for the water industry, 50 is an ordinary type, 53 is an enhanced type, and 23 is a two-wire system. There are two options for accuracy: 0.5% and 0.2%. It can measure forward and reverse flow in both directions, as well as pulsating flow. E+H electromagnetic flowmeter consists of two parts: flow sensor and transmitter. There are excitation coils installed on the upper and lower sides of the sensor measuring tube. After the excitation current is passed, a magnetic field is generated and passes through the measuring tube. A pair of electrodes are installed on the inner wall of the measuring tube and are in contact with the liquid, drawing out the induced potential and sending it to the transmitter. The excitation current is provided by the transmitter. According to the assembly method of converter and sensor, there are two types: separate type and integrated type. In the sewage treatment process, large-diameter flowmeters are mostly split type, with one part installed underground and the other part above ground. Small diameters are mostly integrated. Since its establishment, Shanghai Pratt (Shanghai) Sensor Instrument Co., Ltd. has been committed to the promotion, sales and technical services of world industrial equipment and MRO (non-raw material industrial products) in mainland China! As an enterprise integrating science, industry and trade, promoting the continuous progress of my country's industrial automation industry has always been our driving force! Shanghai Pratt (Shanghai) Sensor Instrument Co., Ltd. is the exclusive sales agent for many industrial equipment manufacturers in mainland China. The company provides users with high-performance, reasonably priced solenoid valves, cylinders, sensors, transmission machinery, industrial electrical appliances, pneumatic and hydraulic, instrumentation, pneumatic components and other industrial equipment.

Analysis of Instructions for Use of E+H Electromagnetic Flowmeter

Operation method of E+H Electromagnetic Flowmeter: ① Select the corresponding water pump according to the diameter and flow rate of the pipeline for the calibration test; ② If the system uses compressed air power, turn on the air compressor and reach the air source pressure required by the system to ensure the rapid switching of the commutator and the normal operation of the meter clamp; ③ After the flow meter is correctly installed and connected, it should be calibrated according to the calibration procedures It is required to power on and preheat for about 30 minutes; ④ If a high-level tank water source is used, check whether the overflow signal of the pressure-stabilizing water tower appears. Before the formal test, the calibration medium should be circulated in the pipeline system for a certain period of time in accordance with the requirements of the calibration regulations, and at the same time, check whether there are leaks in the sealing parts of the pipeline; ⑤ Before starting the formal calibration, the calibration medium should be filled with Check the flowmeter sensor, then close the downstream valve for zero adjustment; ⑥ When starting the calibration, open the valve at the front end of the pipeline first, and slowly open the valve behind the flowmeter being tested to adjust the flow rate at the calibration point. ⑦During the calibration process, the flow stability of each flow point should be within 1% to 2% - flow rate method, while the total flow rate method can be within 5%. When completing the calibration process of a flow point, the temperature change of the calibration medium should not change.If it exceeds 1°C, it should not exceed 5°C when the entire calibration process is completed. The pressure downstream of the flow meter under test should be high enough to ensure that flash evaporation and cavitation do not occur in the flow pipeline (especially in the short diameter); ⑧ After each test, the front end of the test pipeline should first be The valve is closed, and then the pump is stopped to avoid venting the pressure stabilizing facility. At the same time, all remaining calibration media in the test pipeline must be emptied, and then the control system and air compressor must be shut down.

E+H Electromagnetic Flowmeter Instructions for Use Analysis e+h Electromagnetic Flowmeter Instructions Electromagnetic flowmeter is an inductive instrument that measures the volume flow of conductive media in a pipe based on Faraday's law of electromagnetic induction. It uses a single-chip microcomputer embedded technology to realize digital excitation and adopt CAN fieldbus on the electromagnetic flowmeter. It is a domestic brand and its technology has reached the domestic level. The instrument has a simple and reliable structure, no moving parts and a long working life. There are no intercepting and blocking parts, so there is no pressure loss or fluid blockage. It has no mechanical inertia, fast response and good stability, and can be used in automatic detection, adjustment and program control systems. The measurement accuracy is not affected by the type of medium being measured and its temperature, viscosity, density, pressure and other physical parameters. Different combinations of polytetrafluoroethylene or rubber lining and electrode materials such as Hc, Hb, 316L, Ti, etc. can be used to adapt to the needs of different media. A variety of flowmeter models are available, including pipe type and plug-in type. Using EEPROM memory, the measurement and calculation data storage protection is safe and reliable. Available in two types: integrated and separate. High-definition LCD backlight display.