YSI IQ SensorNet 2020 XT Terminal - Manual (Page 134)

Settings/setup System 2020 XT USB
5 - 14 ba76019e01 12/2012
5.5.3 Erasing inactive sensor datasets
An inactive dataset for an IQ sensor arises if the controller receives no
signals from a registered IQ sensor. The Error display appears on the
measured value display instead of a measured value. Inactive datasets
can be recognized by a question mark, e.g. "?01" in the Edit list of
sensors overview.
An inactive dataset can be reactivated by assigning it, e.g. to an IQ
sensor of the same type (see section 7.4.2). All settings are retained. If
you no longer require these data, you can erase them. All the data and
settings belonging to this IQ sensor, as well as differential sensors and
the link with an output, are erased by this action.
Fig. 5-7 Edit list of sensors -> Erase inactive sensor
1 Using <S>, open the Settings menu.
2 Using < > and <OK>, select and confirm the menu
item, System settings -> Edit list of sensors.
The Edit list of sensors display opens.
3 Using <
>, highlight the Model column. Confirm with
<OK>.
4 Press <
> to highlight a Model and confirm with <OK>.
5 Press <
> to select Erase inactive sensor and confirm
with <OK>.
The dialog window for the security prompt appears.
6 Press <
> to select Erase inactive sensor and confirm
with <OK>.
The inactive sensor is erased.