Manual

4 Operation
780/781 pH/Ion Meter, Manual
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4 Operation
4.1 The keypad
• Universal functions • Input of numbers and text
• Navigation
• Special functions
The keys beneath the display can be triggered from the measured val-
ue display irrespective of the mode.
Most of the keys on the right-hand side have two functions: The num-
bers to be entered and the navigation functions are shown in the center
of the keys; the additional functions at their upper margin.