Marathon Monitors Inc.
AACC 2000 Carbon Nov. 1, 1997
27
Operating modes
The controller has two basic modes of operation:
• Automatic mode in which the output is automatically adjusted to maintain the
temperature or process value at the setpoint.
• Manual mode in which you can adjust the output independent of the setpoint.
You toggle between the modes by pressing the AUTO/MAN button. The displays which
appear in each of these modes are explained in this chapter.