2.2. Basic Operation
2.2.2 Switching the Device OFF
The I™ device can be powered off by pressing and holding the
POWER button for at least 5 seconds or until all LEDs illuminate and the
display indicates the device is shutting down.
When the device is powered off, virtually no power is drawn from the battery,
with the exception of a residual current drawn by the internal clock.
2.2.3 Alarm Acknowledgements
All I™ alarms are acknowledged by pressing the center button.
2.2.4 Wake Up
The I™ reverts to User Attended Mode from Unattended
Surveillance Mode (USM) after pressing any of the device buttons; however,
it will automatically re-enter USM after 90 seconds of inactivity. There are
exceptions:
Warning An I™ equipped with the optional nuclide identifi-
cation (ID) mode does not enter USM if it is in ID mode. s
Warning If the device is in active acquisition in Advanced Spectrum mode,
it will not enter USM. s
Warning If the device is in Finder mode, it will take 30 minutes of inactiv-
ity before the unit enters USM. s
The unit’s display deactivates whenever entering USM. This is to minimize
power consumption.
Thermo Fisher Scientific Interceptor™/en/5.1(4956)/Feb2010 7
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