Clear Function - testo 230 Bedienungsanleitung

Configuration menu

Clear function

The "Clear" function can be reached after the
°C/°F and the Auto-Off modes.
In this menu, the values stored during calibration
can be altered, for example, when you have to
replace an electrode and calibration is not
possible.
In this menu, the slope and asymmetric voltage
values are set to the ideal values of -58 mV/pH
and 0 mV and stored.
Call up "clr".
Activate "yes" with the SELECT key.
Leave the menu with HOLD.
The previously-stored values are erased and the
above-mentioned ideal values are stored.
The instrument switches to the measuring menu.
Should "no" be selected in the clear mode and
confirmed, the previously-stored values are main-
tained.
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