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8 ALARMS TROUBLESHOOTING
The NOxBOX
i
is equipped with audible and visible alarm
notifications; this chapter is a guide to the alarm conditions that
can occur and common actions for alarm resolution. all alarms are
graded into high priority or medium priority alerts.
NOTE: In all instances of alarms sounding, the health and condition
of the patient must be ensured before attempting to resolve any
issue with the NOxBOX
i
system.
8.1 Alarm Priorities
8.2 Notifications at switch on
The system alarms are colour coded to help identify priority of detected issue. Additionally, the two
alarm priorities each have an audible warning to help differentiate them.
The below are a series of notifications which may be seen at start-up (before the home screen) if
an issue is detected with the NOXBOX
i
.
Notification Priority
Possible Cause
Recommended Action
NOxBOX
i
System
Diagnostics
The NOxBOXi performs self-tests at start up and
during operation to ensure safe performance is
maintained. In the event that a critical test fails,
the system will display a full-screen notice
indicating that the system can no longer be used
safely.
Press on screen reset button.
If another system is not readily
available and patient requires
therapy, engage the manual
override mode, replace the system
as soon as practically possible and
alert the Service Engineer.
Sensor Bias
Lost
The Nitric Oxide sensor requires a
constant very low trickle charge to maintain its
calibration. In the event that the system is not
stored on mains power charge, after an
extended period of time the battery may
completely discharge and the sensors will lose
their calibration bias.
In the event of power loss,
connect the unit to mains power and
allow 6 hours for the unit to charge
before calibrating the NO sensor
and re-comissioning the unit.
If another system is not readily
available and patient requires
therapy, engage the manual
override mode, replace the system
as soon as practically possible and
alert the Service Engineer.
The Nitric Oxide sensor is sensitive to extreme
temperature variation, contact with VOCs (such
as alcohol based cleaning products), strong
fragrances, direct contact with moisture or
vibrations (such as during transit in a vehicle)
Follow setup steps as normal, if
sensor zero fails re attempt until the
unit passes, this can take up to 30
minutes in some cases.
If another system is not readily
available and patient requires
therapy, engage the manual
override mode, replace the system
as soon as practically possible and
alert the Service Engineer.
The NO sensor may require replacing
PRIORITY
COLOUR
MEANING
High
Red 5 tone
pattern & Red
L.E.D. alarm
strip.
Critical problem detected. Condition poses immediate threat
to patient health or correct functioning of the NOxBOX
i
monitor. Alarm condition should be diagnosed and resolved
immediately.
Medium
Amber 3 tone
pattern
Problem detected. Condition may impair the functioning of the
NOxBOX
i
. If left unresolved, problem may worsen and cause a
high priority alarm condition.
Summary of Contents for NOxBOX mobile
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