Bedfont NOxBOX mobile, Техническое руководство

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Manual
Override
Manual Override mode is engaged.
The system alarms to alert the user that
the system is not delivering in intelligent
mode. Changes to the ventilator setting
or patient demand cannot be
automatically corrected on the system. A
specific dose setting cannot be dialled in
and achieved.
The patient must be closely monitored
and ensure the gas alarms are correctly
set to alert for any abnormal gas delivery
behaviour.
This alarm will resolve when the system is
returned to normal Intelligent Delivery Mode.
8.4 General Troubleshooting
Issue Possible Cause Recommended action
NOxBOX
i
turns on and off
immediately. NOxBOX
i
attempts to start up but shuts
down.
NOxBOX
i
won’t turn on at all.
Low battery power Connect NOxBOX
i
to mains power and turn
on NOxBOX
i
.
An internal fault has occurred; the
system shuts down to protect
integral components.
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.
Zero Calibration Fail One or all of the sensors have
failed the zero (low) calibration.
Ambient conditions may be
affecting the zero sample.
Check ambient NOxAIR monitor for high
levels of NO. If high levels are detected,
check the regulator(s) and supply line(s) for
leaks.
One or all of the sensors may have
become unstable or residual gas
may be present in the system.
Repeat zero calibration.
Check the zero port (rear) has not been
blocked.
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.
Fluctuations/ Oscillations in
excess of 3ppm.
May be due to NOxFLOW Ensure O-ring and NOxFLOW are present
and connected.
Mass flow sensor due for service.
Contact Service Engineer.
HFO Frequency
Adjust the frequency slightly based upon
your clinical judgement.