Electromagnetic flow meter scale choice and installation key points

Abstract: the electromagnetic flow meter scale point of selection and installation of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. A, first clear the measurement demand of this unit should be clear of several measurement demand, mainly include: measuring medium, flow (m3 / h Small zui, working point, zui) MPa ℃, medium temperature and medium pressure, installation form ( Pipeline or plug-in) And so on. (2). More flow meter manufacturers choose model price quote you are welcome to inquire, here is the electromagnetic flowmeter scale choice and installation key points of the article details. A, first clear the measurement demand of this unit should be clear of several measurement demand, mainly include: measuring medium, flow (m3 / h Small zui, working point, zui) MPa ℃, medium temperature and medium pressure, installation form ( Pipeline or plug-in) And so on. Second, choose the premise of electromagnetic flowmeter 1, must be measured medium conductivity of liquid ( Requiring the fluid being measured zui low limit of the electrical conductivity of) 。 2, should not be measured medium containing more ferromagnetic medium or a large number of bubbles. Three, should know the measuring principle of electromagnetic flowmeter, its measurement principle is based on Faraday's law of electromagnetic induction, which measure flow when the fluid flows through a magnetic field perpendicular to the flow direction, fluid flow and the induction of a conductivity and average flow velocity ( Also known as volume flow) Proportional to the voltage, the voltage signal by two detection electrodes, direct contact with fluid and transmitted by cable to the amplifier, and then convert them to an output signal. Four, should understand the main characteristics of electromagnetic flowmeter, its main features are: (1) basic measuring tube without the loss of pressure, not easy jam, measurement of serum have a unique adaptability; 2 straight pipe required low; (3) the low-frequency rectangular wave excitation, free from interference of power frequency and field distribution, work stable and reliable; (4) transmitter can use all stainless steel body, after adding lining materials with acid proof, alkali proof, corrosion resistance ability; 5] scene shows type converter can be used for smart chip, parameter set is convenient; [6] transmitter inside can set a self-correcting system, may at any time to self-calibration of transmitter and constant calibration values, easy debugging and maintenance; Once wide measuring range, full scale velocity is set at 0. 3 m / s - Within the scope of 12 m/s; Being the plug-in can be installed under the continuous flow condition or remove; 'levies range of use: can be used in chemical industry, metallurgy, papermaking, food, petroleum, urban water supply, etc. Five, the choice of model 1, the first clear is that the choice of pipeline magnetic flowmeter, or plug-in electromagnetic flowmeter. 2, generally choose the scene without display type electromagnetic flowmeter, the output of 4 & ndash; 20mA（ Or 0 & ndash; 10马) Current signal to the control room of the secondary instrument and it can display the flow rate and total amount. 3, if the stress is advantageous for the on-site operation observation pipe flow, can choose the scene display type electromagnetic flowmeter. 4, in the environmental demands or measurement accuracy is high, can choose safe voltage intelligent electromagnetic flowmeter. 5, in more than 200 mm diameter measuring flow or continuous flow condition, the installation can be preferred plug-in or enhance plug-in electromagnetic flowmeter. Six, choice of sensor diameter 1, select the calibre of the sensor and connection of process pipe size is the same its advantage is easy installation, Don't need reducer) ； Its premise is the flow velocity of fluid inside should be 0. 3 m / s - Within the scope of 10 m/s; The applicable condition for early use and tube flow velocity in a low state. 2, choose the calibre of the sensor and connection process pipe size is not the same applicable state: (1) low flow velocity, flow stability; 2 to reduce price. Seven, the key points of the selection of lining material according to the enterprise of the measured medium corrosion resistance, wear resistance and temperature, selected by subscribers, can refer to the various manufacturers to provide & other; The lining material performance and the applicable scope & throughout; 。 Eight, the choice of electrode material according to the enterprise of the measured medium corrosive, selected by subscribers, can refer to the each manufacturer provides & other; The corrosion resistance of electrode materials table & throughout; 。 Nine, according to national standard GB4208 - protection grade choice 84, have protection grade: if the instrument is installed in the ground and often under appropriate choice by water diving type; If the meter is installed on the surface should choose water proof type. Ten, the maximum flow of option 1, the general sizing of transmitter and connection pipe size is the same. Because of the size, velocity and flow relationship there is a strict function, when the choice can refer to the manufacturer to provide maximum flow meter, electromagnetic flowmeter under the corresponding size selection ceiling flow value. 2, due to the process with tube flow velocity is low and sometimes reach & other 1' Zui small cap in the corresponding size of flow rate value, the choice of transducer size less than the size of process piping, namely before and after the transmitter and the reducer. 11, the choice of the form of 1 installation, integral, the flowmeter sensor parts and transformation of an organic whole, advantage is easy to install. 2, separate: sensing part of the flow meter installed on the pipeline under test, will facilitate conversion part installed on indoor operation. Apply to the scene environment difference ( But the separation length should be less than 30 m) 。

Sincerity is the unique producer of mass flow meter and related products.

All you women out there looking for amazing to dazzle the world try Beijing Sincerity Automatic Equipment Co., Ltd latest collections at Sincerity Flow Meter. Try it!

Beijing Sincerity Automatic Equipment Co., Ltd expects to reach the desired profits in the first year and does not anticipate serious cash flow problems.