ActiGraph LLC 03 Manual Do Utilizador
actigraphcorp.com
49 E. Chase Street Pensacola, FL 32502
tel (850) 332-7900
fax (850) 332-7904
TAS14DOC07 User’s Manual
Page 16 of 21
ActiGraph Link
Sample Rate (Hz)
Battery Life
(Days)
Memory Limit
(Days)
30
16
120
Table 6 – Battery life based on 16 Hrs Active, 8 Hrs sleep.
ActiGraph Link
Sample Rate (Hz)
Battery Life
(Days)
Memory Limit
(Days)
30
10
120
Table 7 – Battery life based on no sleep (24 hrs active).
Low Voltage Mode (HALT)
ActiGraph devices enter a “Low Voltage Mode” (or HALT) state when the battery discharges beyond a
point of being able to power the device. In this mode, all important variables and data are stored in
flash memory to secure the device download. Because the device’s internal clock stops in HALT mode,
the device cannot be recharged and redeployed; the device must be downloaded and reinitialized to
continue use.
point of being able to power the device. In this mode, all important variables and data are stored in
flash memory to secure the device download. Because the device’s internal clock stops in HALT mode,
the device cannot be recharged and redeployed; the device must be downloaded and reinitialized to
continue use.
Recharging
Recharging is automatic and is accomplished by connecting the device to ActiGraph’s charging station.
Charging time will depend on the battery life, but typically will not exceed three hours for a fully
depleted battery to become fully charged. If the battery voltage drops below 3.1 volts while in use, the
device will not have sufficient power to collect data and will display a warning to the user. The battery
level, reported in volts, can be viewed at any time by starting the ActiLife software and plugging in the
device.
Charging time will depend on the battery life, but typically will not exceed three hours for a fully
depleted battery to become fully charged. If the battery voltage drops below 3.1 volts while in use, the
device will not have sufficient power to collect data and will display a warning to the user. The battery
level, reported in volts, can be viewed at any time by starting the ActiLife software and plugging in the
device.
Important: ActiLife will not allow initialization if the voltage is below 3.85 volts.