
33
Troubleshooting
If these solutions do not correct the problem, please contact NONIN
Customer Support at
(800) 356-8874
(USA and Canada) or
+1 (763) 553-9968
.
A dash (-) appears
in the %SpO
2
display.
An inadequate signal
from the finger is being
detected.
Reposition finger or insert a
different finger, keeping sensor
motionless for at least 10 seconds.
Position sensor at different site.
The finger was
removed from the
sensor.
Reinsert the finger and keep the
sensor motionless for at least 10
seconds.
The Model 7500 is not
functioning.
Turn the unit off, check all
connections, and retry.
Contact NONIN Customer
Support.
An error code
appears in the
display area.
The Model 7500
encountered an error.
Turn the unit off and then back on
again to remove the error code.
If the error persists, disconnect all
power, and then reconnect the
power and turn the unit back on.
If the error still persists, note the
error code and contact NONIN
Customer Support.
The unit is in
Alarm mode, but
no audible alarms
can be heard.
The 2-minute Alarm
Silence button is
activated.
Press the Alarm Silence button to
re-engage alarm volume, or wait
for two minutes. After two minutes,
alarm tones will automatically re-
engage.
Audible volume set to
“
oFF
” in alarm limits.
Adjust volume through setup mode
The Model 7500
does not record
data.
The battery is low.
Recharge the battery.
The battery is missing. Contact your distributor or NONIN
Customer Support for repair or
replacement.
Problem
Possible Cause
Possible Solution