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ONE O2 OXYGEN MONITOR ALARM UNITS Page 10 of 21.
4.3 HIGH / LOW
The normal operation of the ONE O2 HIGH / LOW monitor is summarised in the table below:
Normal (Monitored oxygen level
above the `Low Oxygen’ and below
the ‘High Oxygen’ thresholds and
battery voltage satisfactory.
Low Oxygen Alarm – 18.2%
(Monitored oxygen level below the
`Low Oxygen’ threshold.
High Oxygen Alarm – 22%
(Monitored oxygen level above the
`High Oxygen’ threshold.
Low Battery (Battery voltage
unsatisfactory)
In the `Normal’ condition (monitored oxygen concentration is above the `Low Oxygen
Alarm’ and below the ‘High Oxygen’ thresholds and the internal battery voltage is
satisfactory) All LED’s will be off and audible unit will be off.