How to keep the measurement results of remote level gauges and local magnetic flap level gauges consistent
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This post was last edited by Li_Chongguang on 2010-4-6 08:17. The display value of a remote level gauge does not match the level indication shown by the local magnetic flip gauge – how should this be handled? ? ?
It will be consistent as long as the measurement range of the differential pressure transmitter is calculated accurately.
It is necessary to check whether the ranges of the two are the same. Also, use a magnet to see if there is any sticking in the magnetic flip mechanism. After that, the transmitter was inspected. This is how inspections are carried out step by step
Well, for a remote-mounted level gauge, it’s important that the range setting is accurate. The magnetic flip display on-site is fixed; as long as there are no blockages or obstructions, it should give accurate readings. It’s also intended to facilitate observation, so the ranges of the two devices need to be identical, with the upper and lower flange openings at the same horizontal level
As long as it’s set correctly, it should be the same
Compare the two, identify the cause, and take action; if it is within the error range, no action may be required.
First, check whether the ranges of the two are the same, and then measure the height at the calibration site. As long as there are no problems, the indication of the magnetic flap will be correct. It mainly depends on the transmitter.
Thank you all for your hard work! ! !
If the two are very consistent, it proves that your instrumentation and manufacturing skills are indeed excellent; as long as the trend is the same and the overall measurement values are similar, that’s sufficient. Remote level gauges are affected by numerous factors; the density, temperature, and pressure of the medium can all cause certain errors.
That’s what we asked for; it’s crazy
Strictly speaking, it’s impossible for them to be completely identical. First of all, the error associated with flap-type level gauges is much greater than that of remote transmission level gauges. Second, changes in density significantly affect the degree of correspondence between remote transmission level gauges and flap-type level gauges, as remote transmission level gauges are calibrated based on density and height. To demand complete correspondence is simply a sign that your supervisors don’t understand the matter.