Bedfont NoxBox - ALARMS TROUBLESHOOTING; Alarm Identification and Priorities

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8 ALARMS TROUBLESHOOTING
The NOxBOX
i
is equipped with audible and visible alarm
notications; 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 Notications 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noticationswhichmaybeseenatstart-up(beforethehomescreen)if
an issue is detected with the NOXBOX
i
.
Notication 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.