Water level PID control

Here is another process constructed by Instrumentation students to demonstrate PID control. This particular process was controlled (at different times) by two control systems: an Emerson DeltaV DCS, and a SIemens/Moore 353 (connected to Siemens I|Ware HMI software over Ethernet).

Red-colored water is pumped out of the sump at a constant (manually-adjustable) rate into the top of the "Tower of Power" PVC pipe column. A Rosemount differential pressure transmitter infers the level of water in the pipe by measuring hydrostatic pressure at the bottom. Two control valves acting in tandem serve to drain the column, controlling water level at whatever setpoint value is entered into the PID controller.

Category:

Education

Tags:

• instrumentation
• water
• level
• measurement
• PID
• control
• DeltaV
• Rosemount

[arminask]

whats with the rusty water?

[BTCInstrumentation]

@arminask Red food coloring to make the water more visible in the plastic-tube sightglass.

[KustoRika]

@arg13415 look at the water regulator in your toilet it is a prefect mechanical PID reg...

[nicholassmerk]

what happens when the differential pressure sensor fails?

[arg13415]

Excellent work, PID water level control all makes sense now.

[Hurtcules]

Cool project

[TrippnTroll]

This is shit