Electromagnetic flowmeter is a kind of based on Faraday's law of electromagnetic induction operation flow of high precision, high reliable and long use life appearance, the meter by direct contact with the pipeline medium sensor and the upper is composed of the signal converter.
Because it is the principle of electromagnetic induction, so for the measured liquid medium conductivity has certain requirements, in general can only be used to measure conductivity greater than 5 & mu;
S/cm of conductive liquid flow, is a measurement of conductive medium flow appearance.
In addition to being able to measure the flow of conducting liquid, usually also can be used in measurement of strong corrosive such as strong acid, strong alkali liquid and even contain liquid solid two phase suspension liquid, such as mud, pulp, pulp, etc.
Electromagnetic flowmeter mostly pipe sections of measurement, divided into one-piece section and split type section, there is a plug-in electromagnetic flowmeter.
Customer purchase electromagnetic flowmeter installation, before using the electromagnetic flow meter
and pipelines for connecting, it and pipeline connecting method is different also, cohesion method has the following kinds: a, flange connection: the connection method is more traditional, the two ends of the electromagnetic flowmeter is capable of connecting flange, with pipeline connection, as long as the two head of bolted flange and pipe flange can better, the cohesion can one-way device.
The cohesion of the sensor volume is small, only suitable for use in small pipes.
Second, clamp connection: the connection method comparison, some without their own flange electromagnetic flowmeter selection is the cohesion, can use bolt clamping between two pipe flanges, cohesion method is simpler.
We need to know the electromagnetic flowmeter method of device in the clip of cohesion in without error.
Three, threaded connections: there are some small diameter electromagnetic flowmeter selection is threaded connection, usually in the medical, food industry will use this method of cohesion.
Other, this kind of cohesion in the use of the exploration of oil, there is also a must.
Four, clean type connection: now some of the small diameter pipes chosen is the cohesion, we are often called clean type cohesion is clamp connection, after this cohesion, electromagnetic flowmeter can device and apart, its clean and protect at ordinary times also is very convenient.
In this paper, published by the embellish of instrument science and technology co. , LTD. )
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