Liquid level display issue
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If the liquid level is measured below the horizon, how does the display instrument show the current liquid level value?
What type of level transmitter are you using, and what is the zero-point setting? Under normal conditions, it should display 0.
To measure the liquid level, what the display instrument shows should indeed be the actual liquid level – that’s what’s correct~~~
Measuring liquid level means determining the level of that specific liquid; you need to decide on what exactly you want to measure. If you are measuring the liquid level in a tank, whether the tank is on the ground or underground, what we are measuring is the liquid level within the tank itself, regardless of its location.
The original poster has said too little to answer you accurately. For tanks, containers, etc. underground, any measurement method is feasible as long as a transmitter is used; a standard signal can be sent to the display unit on the surface, or it can be fed directly into the system to be viewed on the control panel.
Reply to 4# zyzs: This expert is absolutely correct.