Accu-Chek COMPACT PLUS Owner's Booklet page 76

Display Messages and Troubleshooting (continued)
The batteries are running low. If
possible, continue testing until
all the test strips in the test drum
have been used. Then replace
the batteries and the test drum.
If the battery symbol appears
briefly and the display goes blank,
the batteries are too low to perform
any more tests. Insert two new
batteries.
Chapter 5: Maintenance and Troubleshooting 74
ACCU-CHEK Customer Care Service Center 1-800-858-8072
Blood sugar is higher than
the measuring range of the
system (600 mg/dL). See
Chapter 3, "Symptoms of
High or Low Blood Sugar."
Blood sugar is lower than
the measuring range of the
system (10 mg/dL). See
Chapter 3, "Symptoms of
High or Low Blood Sugar."