Document No. 715-7000
Revision E
Page 54 of 63
ERROR / WARNING MESSAGES
MESSAGE
DESCRIPTION
ACTION
“LOW
BATTERY”
alternating
with sensor
data
Battery voltage < minimum
operating voltage
Try to recharge the battery as outlined
in
SECTION III
, Battery.
If the battery still does not function,
either the charger or battery must be
inspected by a biomedical engineer.
“NO ZERO
FAILURE”
Zero baseline calibration has been
corrupted.
Power unit off and then back on.
Calibrate as per
SECTION V
.
“NO
2
ZERO
FAILURE”
Zero baseline calibration has been
corrupted.
Power unit off and then back on.
Calibrate as per
SECTION V
.
“ROM
FAILURE”
Data stored in read only memory
has been corrupted or damaged.
Return to International Biomedical for
repair.
“CHECK
SAMPLE
LINE”
Sample line has become occluded,
pump may have shut down.
Check sample line for occlusion.
Remove occlusion. Power unit off for
3 - 5 seconds, then power back on.
This will re-set pump flow.
“SAFETY
OFF”
alternately
displayed with
sensor data
“Safety” shut-off system has been
disabled.
To re-enable the “safety” shut-off,
a) simultaneously depress the NO and
NO
2
alarm silence buttons for 5
seconds until the display reads
“SAFETY ON”
or
b) power the unit off, then back on
again.
“NITRIC OFF”
alternately
displayed with
sensor data
NO gas flow to your patient has
been discontinued because NO
analysis indicated NO delivery
levels in excess of 5 ppm above
the set “Hi” alarm limit or 100 ppm
whichever is the less value or NO
2
levels 1 ppm above the set “Hi”
alarm limit or 12 ppm whichever is
the less value.
Manually ventilate your patient with a
bagger capable of delivering a safe
and known concentration of NO gas to
the patient. Determine the cause of
the alarm. Do not resume NO
administration with the AeroNOx
until
it is safe to do so.
“DATA
INVALID”
alternately
displayed with
“CONNECT
CHARGER”
The battery voltage has dropped
below a point where data can be
accurately displayed.
Connect the AeroNOx
to the power
supply and plug into a wall outlet.