5
Troubleshooting
Problem
Resolution
I press the on/off button but the logger does not
appear to activate and no LEDs blink.
Make sure the battery is charged.
The logger could be operating correctly but the
status indicators are turned off. Check the
“statusindicator” option in the config.txt file.
I press the on/off button, the blue LED blinks
once per second but the red LED does not indicate
logging.
The deadband setting is set too high and the
logger is waiting to detect an event.
The logger is in standby mode waiting for a start
time to occur. Check the config.txt file for the
start/stop settings.
The blue LED blinks slowly.
The microSD card is not present or is corrupted.
Check that the card is inserted properly and the
card is not corrupted.
I press the on/off button but the logger records
only for a short period of time.
Check that the battery is fully charged.
The microSD card is full and data files must be
deleted.
I plug the logger into a USB port but the PC does
not indicate an external drive present.
The microSD card is not present in the logger or
is not inserted properly. Check that the card is
fully inserted into the logger.
The microSD card is corrupted or damaged.
Reformat the card or replace the card.
The on/off button could be jammed in the plastic
enclosure and the logger is stuck in the “off” state.
Check that the button moves freely and “clicks”
when pressed.
The USB connection could be faulty or the
extender cable (if present) could be faulty.
Remove the extender cable and plug the logger
into another USB port.
How do I calculate displacement from
acceleration?
The inherent noise and drift characteristics of the
MEMS accelerometer sensor introduces errors
into the displacement calculations. The errors
accumulate quickly over long time periods, which
produce poor displacement results. Multiple
sensors types and complex filtering algorithms are
required to reduce errors in the displacement
calculations.
Gulf Coast Data Concepts
Page 22
X16-5, Rev New
