ANALOX O2NE+ - Maintenance - Faults; Fault Conditions

O2NE+ & Safe-Ox+
User Manual Int. Approved
Document ref: P0120-820-14 August 2017 Page 17 of 23
Commercial in Confidence
6.6 Fault conditions
During normal operation, the instrument carries out a continuous self-test procedure. If
operation is satisfactory, the ‘Good/OK’ status indicator will be on, blinking off momentarily
every few seconds.
1) If there are no indicator lamps lit on the O2NE+™/Safe-Ox+™, check that power is
connected and that the fuses are OK.
2) If the 'Good/OK' indicator is off, and the alarm indications are believed to be incorrect,
carry out a full calibration. If this fails to correct the problem contact your qualified
service engineer.
A summary of the indicator lamps and buzzer operations is shown in the following tables.
6.6.1 Ax O2NE+™
OK LAMP
(GREEN)
ALARM1 LAMP
(RED)
ALARM2 LAMP
(RED)
FAULT LAMP
(YELLOW)
MEANING
OFF
OFF
OFF
OFF
Power Off
ON/ BLIP OFF
OFF
OFF
OFF
Normal Operation
OFF
FLASHING AND
SLOW BUZZER
OFF
OFF
O
2
Level is
< 19.5%
†
OFF
FLASHING
FLASHING AND
MED. BUZZER
OFF
O
2
Level is
< 18%
†
OFF
OFF
OFF
FLASHING AND
SLOW BUZZER
Calibration Error at
Switch On
‡
OFF
FLASHING
OFF
FLASHING AND
FAST BUZZER
O
2
Cell Fault
Output too High
OFF
FLASHING
♦
FLASHING
♦
FLASHING AND
FAST BUZZER
O
2
Cell Fault
Output too Low
OFF
OFF
OFF
FLASHING AND
VERY FAST BUZZER
Internal system fault
contact Analox
†
Note that alarm levels may be set at different values, depending on customer requirement
‡
A calibration error or a cell fault requires the attention of a service engineer. A recalibration
procedure may overcome the problem.
♦
Only when Alarm 1 and Alarm 2 are enabled.
6.6.2 Ax Safe-Ox+™
OK LAMP
(GREEN)
ALARM1 LAMP
(RED)
ALARM2 LAMP
(RED)
FAULT LAMP
(YELLOW)
MEANING
OFF
OFF
OFF
OFF
Power Off
ON/ BLIP OFF
OFF
OFF
OFF
Normal Operation
OFF
FLASHING AND
SLOW BUZZER
OFF
OFF
O
2
Level is
> 23.0%
†
OFF
FLASHING
FLASHING AND
MED. BUZZER
OFF
O
2
Level is
< 19.5%
†
OFF
OFF
OFF
FLASHING AND
SLOW BUZZER
Calibration Error at
Switch On
‡
OFF
FLASHING
OFF
FLASHING AND
FAST BUZZER
O
2
Cell Fault
Output too High
OFF
FLASHING
♦
FLASHING
♦
FLASHING AND
FAST BUZZER
O
2
Cell Fault
Output too Low
OFF
OFF
OFF
FLASHING AND
VERY FAST BUZZER
Internal system fault
contact Analox
†
Note that alarm levels may be set at different values, depending on customer requirement
‡
A calibration error or a cell fault requires the attention of a service engineer. A recalibration
procedure may overcome the problem.
♦
Only when Alarm 1 and Alarm 2 are enabled.