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Unit 5: Troubleshooting
CT4i Series Operator Manual 5-3
L
blinks
steady
No beep
long beep
Low Battery level
Critically Low Battery
level
Check the battery level and
recharge or replace the battery
as necessary
Replace or recharge the battery
y
USB interface
selected
NA
l
Other interface
selected
NA
Display
ON
ERROR
BUZZER ERROR CONDITION CORRECTIVE ACTION