ActiGraph wGT3X-BT User Manual
Also see for wGT3X-BT: User guide
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www.theactigraph.comP a g e | 1749 E. Chase St. Pensacola, FL 32502 tel 850.332-7900 fax 850-332-7904Low Voltage Mode (HALT)ActiGraph devices enter a “Low Voltage Mode” (or HALT) state when the battery discharges beyond apoint of being able to power the device. In this mode, all important variables and data are stored inflash 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 tocontinue use.Recharging and LED DecodingRecharging is automatic and is accomplished by connecting the device to a standard USB port with a USB2.0 cable only. Charging time will depend on the battery life, but typically will not exceed three hours fora fully depleted battery to become fully charged. Once the battery is completely charged, the green LEDwill remain illuminated. If the battery voltage drops below 3.1 volts while in use, the device will nothave sufficient power to collect data and will warn the user through a series of coded flashes (see thebelow table for an explanation into WGT3X-BT’s LED flashes). The battery level, reported in volts, can beviewed 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. |
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