93
Problem Possible solution
Unrealistic
information on
the LC display.
Reset the data logger to rmware (please refer to
“17. Reset to default rmware” on page 92).
Button ENTER/
DOWN does
not response
although
pressed.
LC display
is off.
Check whether the LC display is disabled during
conguration (please refer to “Other settings” on
page 77).
Replace the battery.
No LED alarm. Check whether the LED alarm is disabled in the
conguration le (please refer to “Other settings” on
page 77).
Check whether the alarm has been paused (please
refer to “e) Activate/deactivate limit alarm pause
function” on page 88).
19. MAINTENANCE AND CLEANING
• Besides occasional cleaning, the device is maintenance-free.
• Before cleaning, disconnect the device from the computer.
• Never submerge the product in water.
• Do not use any aggressive cleaning agents, rubbing alcohol or other
chemical solutions. Use a dry, soft and clean antistatic cloth to clean the
product exterior.
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