『Electromagnetic flowmeter symbol』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
What legend is used to represent the electromagnetic flowmeter in the drawing?
It is represented by a box with EMF. Electromagnetic flowmeter is a flow meter that measures flow based on Faradays law of electromagnetic induction. The advantages of electromagnetic flowmeter are minimal pressure loss and a wide range of measurable flow rates. The ratio of maximum flow to minimum flow is 20:1 or higher. The applicable industrial pipe diameter range is wide, up to 3m, and the output signal is linear with the measured flow rate, with high accuracy. It can measure the fluid flow of acid, alkali, salt solutions, water, sewage, corrosive liquids, as well as mud, slurry, pulp, etc. with conductivity ≥ 5 μ s/cm. But it cannot measure the flow of gas, steam, and purified water. When a conductor cuts magnetic field lines in a magnetic field, an induced potential is generated in the conductor, and the magnitude of the induced potential is proportional to the effective length of the conductor in the magnetic field and the speed at which the conductor moves perpendicular to the direction of the magnetic field. Additional information: The reference error of electromagnetic flow meters can also be used to represent the error of flow meters used for instantaneous flow indication. The maximum allowable error series should comply with the provisions of Table 1. The accuracy level should no longer be given in the calibration results of the bid, but its maximum allowable error representation should be used, and FS should be marked after the maximum allowable error, such as ± 0.5% FS. In a single calibration of a flow meter, the flow meter error representation method should be given according to one of the accuracy level and the refe
2. What is the automatic control identification symbol of the flow meter
The automatic control identification symbol of the flow meter mainly includes two types: letter codes and graphic symbols, which need to be distinguished according to the national standard GB/T 2625 and P&ID diagram specifications. 1. Symbol rules in national standard GB/T 2625-2010
(1) Letter combination rules • Variable identification: Flow variables are uniformly represented by the letter "F"; Function code: "FT" represents flow transmitter (such as FT-101), "FY" represents flow calculator, and "FE" refers to flow detection element.
(2) Distinguishing graphic symbols • Installation location symbols for cavity modified silver instruments: On site installed instruments are represented by solid circles, while instruments installed on centralized instrument panels are marked with dashed circles.
. two The symbols in the P&ID diagram represent(1) Mechanical flowmeter graphics - orifice plate, Venturi tube and other throttling devices flow meters, using a graphic symbol with a circle in the middle of two short vertical lines to represent the throttling element, with a letter code next to it.
(2) Electronic flowmeter graphics - Electromagnetic flowmeters, vortex flowmeters, etc. are usually identified by rectangular boxes combined with the letter "F" and functional codes (such as FE, FT), and the symbol form and functional labeling sho
Hot Product
Related AD
