2 Automatic mode
The controller operates as a three-term controller with a set point
specified by the operator. A LED above the key shows when this
mode has been selected. The digital display shows the set point
value when the SP key is depressed and the value changed by
pressing the up or down keys. The digital display shows the set point
value in units such as ~ the unit previously having been set up to
give such values in the set up procedure. The set point is also
displayed on the vertical bar graph as a percentage.