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With remote magnetic flap liquid level meter liquid level show the cause of the signal and float hysteresis solution

by:KAIDI     2020-09-23
Magnetic level gauge, as a kind of turning on the spot according to level of products, in the petroleum, chemical, pharmaceutical, food industry has huge usage, is suitable for all kinds of pressure in the process of industrial production, Or open) Liquid equipment ( Tower, cylinder, chamfer, spherical vessel and boiler) The liquid medium level of detection. Can display the various in-place and working condition of liquid level height. The scene of the ordinary magnetic flap liquid level gauge by adding remote transmission parts, can realize the liquid level signal remote transmission, through certain electric devices to achieve the purpose of automatic control and measure the liquid level, operators can directly obtain measurement data is controlled in the computer inside central control room, realize remote measurement and control. In daily production, users often have ask we take far eastone magnetic level gauge why turning the output level display, but far to control liquid level display shows normal. This kind of situation what reason is caused? How to solve? Judging from the phenomenon, is likely to be the magnetic level gauge turning indicator turning the double column damaged inside. Be float is broken, no magnetic. Level gauge turning frame fixed specification level gauge block, that is to say, floating ball. This is far eastone indicates a normal level. Why is this? Far eastone level gauge is not through the up and down movement of the floating ball to send electrical signals? Don't. Because the magnetic flap liquid level meter remote transmission part is also a signal transmitted by magnetic float ( Magnetic coupling) , if lose magnetic float, then the directives and remote display would be out of the question. And far eastone liquid level monitor is a liquid level display. Therefore, it is the magnetic level gauge turning indicator turning inside double column was damaged. So as long as you have pointed to the source of these questions, take corresponding measures can solve easily. Magnetic level gauge with turning also exist in the process of such a situation, is the problem about instrument internal produced by the float. Particular case has the following kinds, this paper made analysis: a, field calibration float up and down occasionally found in flexible enough. This is mostly due to improper installation, magnetic level gauge at this time whether should pay attention to the center of the upper and lower flange turning in a line, whether with horizontal vertical. In general, and the horizontal Angle of not less than 87 degrees, if the deviation is bigger, may impact the float move smoothly. Second, the level gauge calibration is normal, after putting-in-service proactively find float at a particular location in a period of time & other Absorb & throughout; Phenomenon. This is mainly the level through the steel platform installation, with steel plate too close. Therefore, through the steel platform installation need to pay special attention to the level of pipe wall and platform cutting line spacing. Shanghai YunOu, according to the experience of the field use, the distance here as early as 100 ㎜ can guarantee the influence of magnetic float. Three, level gauge field putting-in-service proactively, to pay special attention to should be opened the upper gate, after open the lower gate valve. Glass tube liquid level meter which is due to the level of protection float at the bottom of the pipe thrust spring, otherwise, the role of big differential pressure may be crashing float liquid level gauge can't use. Four, level gauge putting-in-service proactively after a period of time, a float to float and float move is not flexible. This is largely because of magnetic float was matted with iron filings or other contaminants. Can be emptying medium first, and then remove the float, eliminate some iron filings on magnetic float or other contaminants. Five, if caused by transportation or other reasons instructions given in airtight glass tube rupture, usable domestic glass tube replaced. But good to vacuum. Shanghai YunOu, also note the indicator weight style glass tube is vertical, so as not to affect the indicator's instructions. Liquid level meter in use process, if the output signal frequency disturbance or interference pulse, and check whether the signal cable shielding layer and reliable grounding, work is whether resistance can meet the requirements. If still not completely eliminate, usable signal isolator to solve. Liquid level meter especially pay attention to when using, don't use strong magnet pull float up and down outside the pipe inspection. Otherwise it will cause the magnetization of the magnetic float but change polarity, make even float magnetic abate, so difficult to work properly. When choosing the Ann type liquid level meter, especially pay attention to the magnetic level gauge with turning safety grid impedance match. Because of the level meter power supply voltage of 14. 5-36 VDC, less than 14 of general transmitter. 5-45 VDC, so can't work normally when the load is bigger. In this paper by embellish instrument technology co. , LTD. Arrange release.
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