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Level transmitter issues

2019-12-09View Original

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Replace the level transmitter on the on-site water tank when it is not empty. The range is 14.7–57.86; the secondary gauge reads 6400. The current differential pressure is 57, which translates to a liquid level of 6272. However, the local level gauge shows only 6000. The process requirement specifies that the indication should be the same as the on-site level gauge; can this be achieved through calculation? I always go over to them.
Reply #22019-12-09
It wasn’t specified what type of level gauge it is.
Reply #32019-12-09
It can be calculated and implemented. It can be serious. Want to learn how to calculate it? I want to learn how to send a big WeChat red envelope to an older guy. How about that? {:2_36:} .
Reply #42019-12-09
What kind of level gauge is that for the tube bulb? It’s a lost cause; I’ll teach you a trick to make do. Do you want to learn it? I want to learn how to send red envelopes to my brother, hahaha.
Reply #52019-12-10
Let’s shift the entire range down a bit. This is the simplest way to do it, or use the knob turned all the way
Reply #62019-12-10
1. Are the bottom flanges of the on-site indicating level gauge and the level transmitter at the same horizontal level? If they are not in the same position, then adjust the zero point of the secondary gauge ; 2. Under normal circumstances, single-flange level transmitters, or single-flange and double-flange level transmitters equipped with capillaries, need to be zeroed on-site after installation in an empty tank, in order to compensate for the deviations caused by the pressure at the flanges and the pressure in the capillaries. Empty the can and then zero it out. Or observe the pressure values at different liquid levels several times, calculate them yourself, and then adjust the gauge ; 3. There is another question: is the relative density of the medium definitely 1.1? If the density does not match, there will also be deviations.
Reply #72019-12-10
What kind of level gauge is it? It is estimated that migration is required
Reply #82019-12-10
The range is incorrect, right? For a water tank with a capacity of 6400 mm, the calculated range is 62.72 KPa. Your current range is 57.86 – 14.7 = 43.16 KPa; it should be set to 14.7 – 77.42 KPa instead. The differential pressure gauge shows 57, and the calculated liquid level is 4316 mm; so the medium in your tank isn’t water, right?
Reply #92019-12-11
Calculate based on the medium density, and then perform migration.

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