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The chart in Acquisition 3/5 is modified when operating the AlphaGUARD in interval
mode. The interval is adapted to the chosen measuring time. Every time period is
marked with a dotted line.
Figure 24: Acquisition screen 3/5 with activated interval mode
7.2.6 Lock device
The AlphaGUARD can be locked and thereby protected against manipulation.
To lock the device the key code has to be entered by using the Scroll up or the
Scroll down button. The next digit can be selected by pushing the Enter
shortly and the selection has to be acknowledged by pushing the Enter button
for 2 sec. The activated lock is confirmed by following screen which appears for 8
seconds.
Figure 25: Entering the key code for locking the device and confirmation screen
If “Hide display content” is deactivated (See 7.2.9, “Hide display content”), the last
displayed acquisition screen is still visible. During the device lock the lock is marked
by the key in the top right corner of the display.
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