Bedfont NoxBox - System Tests and Configuration

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6.4 System Tests
The NOxBOX
i
runs some system tests during start-up to ensure correct function and safe operation.
TherstofthesetestsistheSensorZero
test. This requires no special set-up to run
correctly. The system will automatically
draw an atmospheric sample of gas to
establish a baseline for correct sensor
operation.
The test lasts approximately 2 minutes. Once complete the system will display pass or fail
information for each sensor.
Intheeventofatestfailure,pressnextandfollowtheon-screeninstructions.Thehomescreen
will be displayed on successful completion.
From the home screen the second test is the main System Test. This test requires the user to
set-upatestcircuit.Thesystemtestisassessingthedeliveryandmonitoringfunctionsare
operating correctly. Additionally this is an important step to ensure that any build-up of NO
2
in the
systemheadthatmayhaveoccurredduringstorageisushedoutpriortoconnectingtothe
patient.
The System Test may take up to 5 minutes to run. Once complete the system will display pass or
failinformationforeachsensor.Intheeventofatestfailure,pressnextandfollowtheon-screen
instructions.