USB Accelerometer Model X16-1C
Figure 3: Accelerometer Sensor Orientation
3.2.2
Indicator LEDs
System status is indicated by the two LEDs located near the USB connector. The blue LED indicates
system operation. A steady blinking blue LED, once per second, indicates a properly operating
system. The blue LED blinks once per second when the USB Accelerometer is recording data, in
standby mode, or is connected to a computer via the USB port. The red LED blinks when data is
written from the internal cache to the microSD memory card. The period at which the red LED blinks
depends on the deadband setting and sample rate. The red LED will also blink with Human Interface
Device (HID) communication activity when connected to a PC. The “statusindicators” tag in the
configuration file turns off or changes the brightness of the status indicators (see section 3.2.4.11).
3.2.3
Battery
3.2.3.1
Main Battery
The X16-1C is powered by a single “AA” sized battery. Typical operation times using an alkaline
battery range from 3 to 7 days depending on system configuration, battery quality, and microSD card
type. The RTC continues to operate from the battery when the device is “off”. The RTC should be
reinitialized if the battery is removed or depleted. The battery is not used when the device is connected
to a computer USB port.
Gulf Coast Data Concepts recommends an alkaline battery (ANSI type 15A or IEC type LR6) or
lithium battery (ANSI type 15L or IEC FR6) to operate the X16-1C. A lithium (Li/FeS2) battery
provides approximately 30% more capacity and wider operating temperature range than an alkaline
battery. Extended operation is achieved by connecting a 5V supply via the USB connector (such as a
personal electronics USB charger or USB battery pack).
January 2012 Rev New
4 of 14
www.gcdataconcepts.com
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