Hach Anatel PAT700 User Manual page 56

Run Modes
Page 54
In manual self clean mode, the analyzer starts by setting the elapsed time to 0, opening
the cell valve to flush the cell, and turning the lamp on. If timed self cleaning was
selected, the dialog box displays the time remaining. Otherwise, the dialog box displays
the elapsed time. Self cleaning stops if you touch the stop icon (red "X") or if the analyzer
is switched to another mode by schedule or by digital control.
Figure 31 Clean mode dialog box