76
Sentinel
™
Data Loggers
Sentinel
™
Data Loggers
77
APPENDIX A
TROUBLESHOOTING
Symptom:
After being in a damp, cold environment, the logger does not
function.
Cause, Correction:
Condensation may have formed inside the logger,
shorting out the circuitry and discharging the battery. Allow the circuit
board to dry thoroughly in a warm location.
Symptom:
Sentinel™ Data Logger does not start recording when the
button is pressed.
Cause, Correction:
Make sure battery power is present. Make sure you
are pushing the button longer than 5 seconds to turn it ON. Make sure the
YELLOW LED is not double blinking. If it is, memory is full and you need
to erase the data by pushing the Record button longer than 10 seconds
twice. Make sure the Sentinel™ Data Logger is properly configured so that
you have Storage Rate, Recording Period and at least one Measurement
Channel specified.
Symptom:
Sentinel™ Data Logger does not respond to a button press
even with fresh batteries installed.
Cause, Correction:
Make sure that the instrument is not OFF. Press the
button for a short duration (less than 1.5 seconds). If the LEDs do not flash
then the instrument is OFF. Turn the instrument ON by pressing the con-
trol button for five seconds. The LEDs will light solid once the instrument
has turned on and you may release the button at that time.
Refer to the Troubleshooting section, located in the Help menu from within
the Sentinel Control Panel, for a complete list of issues and solutions.
