Hengstler Signo 721.2 User Manual page 111

3 Setup and Operation
During Operation:
For setting the presets, prescaler and correction values. Which each
pressing of the ENTER-Button, you will get to the next value.
When using the SHIFT-Button while setting the values, the next
digit to the left is selected.
When using the UP-Button while programming, the value is raised
by one.
When pressing the UP-Button and the RESET-Button at once, the
value is reset.
In the setting menu, the current value is set to 0 and the prescaler
to 1,0000.
+
When in the programming mode for function codes, by pressing
these two buttons you can switch between text and numerical
display.
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