Glass plate level display issue
Thread Content
Recently, there have been issues with the level gauge on the glass panel of a water tank installed on the unit (which is equipped with electric heating). With the DCS control settings unchanged and the electric heating turned off, the displayed water level is 7 or 8 levels higher than when the electric heating is in use. The pressure in the water tank is around 0.26 MPa. Can someone help resolve this issue?
Are you sure no other conditions have changed?
What does it mean by 7 or 8 liquid levels? Millimeters? Is the reading on the on-site glass panel inaccurate?
It’s possible that some of the liquid has evaporated due to the glass plate
Little brother of the poster, what does the glass panel on the outside look like? ,, Take a picture and upload it. What do you mean by 7 or 8 liquid levels? ,,, Include the units and explain clearly.
Turn off the heat tracing; sometimes it does affect the liquid level in the glass plates. Insulate the area when the temperature isn’t very low!
This cannot be determined either; after all, it’s not related to instruments. Today, heating was applied again, and the liquid level dropped again (although it remains unchanged on the DCS).
Only the heat tracing changes; nothing else has changed
Even when it evaporates, it should remain at the same level as the liquid level in the tank, right?