The PID Process Control Trainer provides basic process control training
using a simulated level control application and an embedded generic process
controller. This training device allows for training of operators and technicians
in the use of controllers in both automatic and manual modes. The controller
display illustrates the major sections of a common controller; the proportional,
integral, and derivative amplifiers and the manual output section. Indicators
permit the student to see the effect that a change in controller output
has on final control element position and the process variable being controlled.
Using front panel-mounted controls, the controller can be tuned to provide
proportional, proportional plus integral (reset), proportional plus derivative
(rate), and proportional plus integral plus derivative control actions.
Both open and closed loop tuning techniques can be used.
Both control valve response time and process tank capacity can be adjusted
in order provide variety to exercises and to eliminate the possibility of
students memorizing settings.
The device accepts and provides external 4-20 mA DC control signals,
allowing it to be interfaced with an actual process. Optional signal generators
and strip chart recorders can be easily connected. The trainer easily supports
instructor demonstration, student practical exercises, and self-study programs. | 
