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KEYBOARD DESCRIPTION
FUNCTION KEYS
VIRTUAL KEYS
The upper row keys are assigned to the virtual keys placed on the bottom of the LCD, which allow you to
perform the displayed function, depending on the current menu (e.g.
,
and in
Measure
mode).
Note: All the virtual keys are assigned to the focused channel (HI 4222 only).
LCD GENERAL DESCRIPTION
To enter/exit calibration mode.
To select the desired measurement mode, pH, mV, Rel mV (or ISE – HI 4222 only).
To enter Setup (System, pH, mV or ISE) and to access Log Recall function.
To obtain general informations about the selected option/operation.