Equilibrium is calculated from the current dry bulb and wet bulb temperatures and is displayed continuously. The Drystar system provides position feedback for all actuators to keep you informed of not only where the control positions should be, but where they actually are. Yellow bars show the desired values, which are calculated from the PID control loop, while blue bars show actual positions. With this window you can ensure that all vents are properly synchronized and that you are getting uniform venting over your entire charge. Should a vent actuator malfunction, an obvious difference appears in the height of one of the blue bars.
Similar graphs provide the same information for the heat valve and spray valve actuators.
With this set of tools, you can be assured that your controlled hardware is positioned correctly. For extra protection, a system alarm monitors desired vs. actual positions of the actuators and provides a visual indicator if any are not positioned properly. They are set to pre-defined positions and the operators must verify each before the program will continue. This checkout routine can also be used for troubleshooting. Flexible drying schedules support totally automatic drying Automatic drying schedules consist of up to 25 segments.