The batch relay is dedicated to valve on/off control. It is energized at the start of the
batch cycle and de-energized at the end of the batch cycle. It also can be manually deenergized
by selecting STOP from the front keypad or by a remote contact closure to
the rear STOP terminals. A RESUME command can be given by either method to
complete the batch or a START command can be given to start again from the
beginning the batch cycle. The OUT1 icon on the LCD is always on while the
corresponding green led indicator turns on when the batch is in progress and the
contact is energized.