Bedfont NoxBox - Page 78

78
Ifissuespersist,removethebarrelandcheck
positionofalarmoat.
Removing the water trap barrel will dilute
NO sample causing inaccurate dose and
readings. Take care not to damage/cross
thread the water trap thread when replacing
the barrel.
Sample
Line
Block
Sample line to monitor has
becomeblocked,pinchedoroccluded.
Sample monitoring is affected which
maycompromisedeliveryaccuracyand
patient safety.
Check sample line for any pinch/crush points
fromexternalbodies,or
blockagesthatmayhaveoccurred.
Check water trap does not require emptying.
Changesamplelineandlter.
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.
Battery
Critical
NOxBOX
i
is running from internal battery
andbatterychargelevelhasbeen
detected as critical. System power could
fail within the next 10 minutes.
Power failure will stop automatic
intelligentdeliveryofNO.
Reconnect the NOxBOX
i
system to the mains
using the NOxBOX
i
power supply. This will
ensure continued powered operation of the
NOxBOX
i
and will start to recharge the internal
battery.
Checkgreen(mainspower)L.E.Donmains
power plug is lit indicating mains supply OK. If
not,tryadifferentmainspowersocket/supply.
Disconnect power supply and
reconnect,checkblue(charging)L.E.Dislit
indicatingmainssupplyOK.Ifnot,trya
different mains power/supply.
If possible replace NOxBOX
i
power supply and
alertserviceengineer.
Intheeventthatnomainspowercanbe
restoredtothedevice,bepreparedtoengage
themanualoverridemode.
Cylinder
Supply
Critical
NOxBOX
i
detectsthatavailableNOgas
supplyisrunninglow,andnoalternate
cylinder supply is detected. Without
action to replenish the NO gas supply
treatment delivery will cease.
Install a new gas cylinder supply and connect
to the alternate gas inlet port at the rear of
NOxBOX
i
.
Ifanewgascylinderisalreadyinstalled,
ensurethecylindervalveisfullyopenand
connected to inlet port at rear to allow the
devicetousethesupplyfordelivery.
Check the supply cylinder regulator gauges
indicateadequatecylinderpressure(>20bar).
Ifregulatorgaugeindicatesadequatepressure,
checkforleaks.Ifissuespersist,replace
regulatorandalertserviceengineer.
Ventow
Idle
The NOxFLOW has not detected any
ventowactivityforanextended
periodoftime(typicallyover30
seconds)duringdelivery.
CheckcorrectorientationofNOxFLOW;the
green arrow printed on the NOxFLOW should
be pointing towards the patient in the direction
oftheventilatorow.
CheckNOxFLOWowdetectionlinesand
connection(includingOrings)areconnected
and there are no blockages or leaks.
Check there is not a serious leak or break in
theventilatorcircuit.Attendtotheventilator
circuit requirements.