YSI IQ SensorNet 2020 XT Terminal - Manual (Page 136)

Settings/setup System 2020 XT USB
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5.6.2 Erasing a differential sensor
If a differential sensor is no longer required, it can be erased from the
list of sensors.
Fig. 5-9 Settings of sensors and diff. sensors ->
Erase differential sensor
1 Using <S>, open the Settings menu.
2 Using <
> and <OK>, select and confirm the menu
item, System settings -> Settings of sensors and diff. sensors.
The Settings of sensors and diff. sensors display opens.
3 Press < > to highlight the & column and confirm with
<OK>.
4 Press <
> to highlight a differential sensor and confirm
with <OK>.
5 Press <
> to select Erase differential sensor and
confirm with <OK>.
The differential sensor is erased.