Turner Designs TD-107 5.0 Operation Manual page 27

Troubleshooting Guide (Continued)
SYMPTOM
HOME screen reads zero.
Screen blank or black.
Offset value ineffective (i.e.
HOME screen reading does
not change when the Offset
value is changed).
Unit does not respond to
Calibration Check Solution.
Cell calibration alarm
Zero Alarm ( Datalogger)
No Datalogger data on
USB key
POSSIBLE CAUSE
System Values incorrectly
set, no water or clean water
running through the
monitor.
LCD screen contrast too
high or too low
This is not usually cause for
alarm as the HOME screen
reading is a result of a
combination of factors.
System Values incorrectly
entered
Dirty sample cell
Clean water in sample cell
Data key was pulled from
USB port prior to
completion of downloading
data.
Defective data key
27
5.0
TD-107 Oil Content Monitor
Operation Manual
SOLUTION
Make sure valid System Values
were entered (see Appendix F).
If screen is blank, adjust contrast by
pressing UP ARROW (if screen is
black, use the DOWN ARROW)
continuously until screen is visible.
Use  arrows to fine adjust.
Contact a factory-authorized dealer
for re-calibration.
Ensure correct Cal Soln and Offset
have been entered (see Appendix
F).
Clean sample cell. Re-calibrate cell
condition after cleaning.
This is a normal situation. Note that
a zero alarm with treated bilge water
may be possible.
Keep data key in USB port until LED
indicates that data download has
been completed.
Try another data key.