EN-9
2.4. Navigational Control Pad
The AP50MM navigational control pad consists of five keys as shown in Figure 2.
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The left, right, up, and down keys are navigational keys that are used to select
an icon, a button, or other items in various pages.
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The center key is the OK key. Press the OK key on a selected item to launch the
action associated with the selected item. The OK key is also used to accept the
current selection, like the return key in a computer keyboard.
2.5. Turning on the AP50MM
After new batteries installation, the AP50MM not automatically turned on. To turn on
AP50MM, press the OK key, and release the OK key when the LCD is lit. You can
navigate the main page menu and launch an operation by pressing on an icon. If
battery voltage is too low for the instrument to work properly, the AP50MM will show
a low battery warning message when it turned on If this happens, replace all four
batteries.
2.6. Turning off the AP50MM
Turn the AP50MM off by navigating to Power icon and press the OK key. Alternatively,
you can turn off the AP50MM by pressing OK key for 5 seconds in any menu.
2.7. The AP50MM Auto Power off
The AP50MM automatically turns itself off with no-key activity for a given period,
except for during a measurement. The auto power-off time can be set in
SYS->System Set. Pressing OK key will wake up the instrument, and the AP50MM
will return to the original page if it has any measurement data.
Figure 2 Control Pad
a-AP50MM