The pH Training System is based around the pH Rig and is a self-contained
educational platform for teaching pH level control and effluent treatment
methods. The System comprises two independently pumped fluid circuits mounted on a
robust bench-top panel which allows the study of the principles of process control
using the pH of the mixed effluent and reagent fluids as the process variable.
The system is suitable for individual student work or for group demonstrations.
Effluent and reagent are contained in separate holding tanks prior to being
pumped into the reaction tank where mixing is carried out.
Curriculum Coverage
Introduction, familiarisation and calibration of the pH rig
Interface familiarisation and calibration
Controller familiarisation and calibration
Valve characteristics
Manual control of pH
Open loop response
On/off control of pH
Simple proportional control
Effect of proportional band
Study of proportional and integral control
Study of proportional and derivative control
Study of proportional, integral and derivative control
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