
ZM4 Instruction Manual 9R87-B June 2012
7
Keys and Functions
Figure 2: Keypad Functions
Number Key Description
Turns the power On and
Off.
Turns green backlight
On and Off.
Function Keys F1 – F4
Change depending on
Operation Mode
Adaptive interface wheel
scrolls up and down
through menu options or
increments or
decrements a value.
2
4
3
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