How to manage the comparison between the liquid level readings in the control room of chemical processing plants and those taken at the operational sites?

This post was last edited by ylb913 on 2016-8-14 at 17:50. 1. Mark percentages on the on-site level gauge corresponding to the measurement range of the indoor liquid level; otherwise, few operators will be able to read it. I did the same thing over twenty years ago. 2. Next: It is very important to monitor the liquid level during inspections. The operator on site uses a walkie-talkie to report the readings, while the operator inside compares them; a difference of 5% or 10% can be ignored, but if the difference exceeds 20%, it is necessary to carry out adjustments. Before contacting the instrument maintenance service, it is generally necessary to verify on-site whether the liquid level is accurate by oneself, especially when zero adjustment of the instrument is required. 3. For important liquid levels or interfaces (where cross-contamination between media is a concern), our requirement is to change the set value for level control by Friday, and then check whether the displayed liquid level changes as well. ——Since fewer people work on weekends, this is done to eliminate potential problems in advance. 4. With the current design, many systems feature dual-level displays inside, which greatly reduces the likelihood of accidents caused by false liquid levels.

One of our regular tasks is to check the liquid level in the towers, and this is done every few days