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Maintenance 5
Agilent U1251A/U1252A User’s and Service Guide 101
Table 5-2 Error messages
Error Error message
OL
1 No battery inside
2 Faulty battery
3 Battery is fully charged
C-Err
1 If charging battery more than 12 V or
less than 5 V
2 In 3 minutes, if the battery voltage
does not go upwards then charge
error