Hach-Lange POLYMETRON 9240 Operator Manual - Manual (Page 112)

110
Maintenance and Diagnostics
9.10.3 Logical inputs
9.11 Sensor reactivation
Choose this option to check the logical inputs status.
Each logical input shows either Open or Closed to indicate its
current status.
Press Esc to exit the screen.
Usually, the electrode is reactivated automatically based on
the time delay set in
Reactivation frequency on page 82 .
This option allows for a manual reactivation.