URIT 12 - Advanced Error Codes (E4) and Detector Issues

Damaged
Strip Inserted
Remove the test strip
and shut off. Turn on
and repeat test with new
strip. Confirm there are
no tears, wrinkles or
debris.
Optical detec-
tor needs cle-
aning
Remove strip holder
and clean lenses follo-
wing the direction.
Optical detec-
tor does not
read the back-
ground blank
Before finishing the ba-
ckground blank reading,
do not apply blood sam-
ple. Do it until displayi-
ng a flashing prompt.
E4
Optical detec-
tor is clogged
Check the Optical dete-
ctor, whether it is cove-
red by blood or others,
if yes, remove the strip
holder and clean it. Ref-
er to the Manual.