711449 (Rev.3) 02/2016
Appendix D
Troubleshooting
Table D-1. Troubleshooting
PROBLEM
CAUSE
CORRECTIVE ACTION
Display is black
Monitor is turned OFF or Battery is
expired.
Press
I/O
to turn ON monitor
If monitor does not respond, replace the battery
If problem persists, call Ohio Medical Corporation service
No response to keypad
commands
Battery is expired
Press
I/O
to turn ON monitor
If monitor does not respond, replace the battery
If problem persists, call Ohio Medical Corporation service
displays and
visual and audible
alarms activate
Cable is disconnected or malfunctioning Check cable and sensor connections
Sensor is disconnected
Visually check cable for damage. If necessary, replace
cable
Sensor membrane is perforated
If alert persists, replace sensor
The thermistor circuit is open on the
sensor circuit board
If alert persists following sensor replacement, call Ohio
Medical Corporation service
During calibration, “CAL
(55´ÀDVKHVYLVXDO
and audible alarms
activate; then, “CAL”
ÀDVKHV
Calibration performed using a gas other
than room air or 100% oxygen or wrong
calibration key pressed (100%/21%)
Recalibrate the monitor, ensure proper calibration key
pressed for calibration gas of room air or 100% oxygen
If alert persists, replace sensor
If alert persists following sensor replacement, call Ohio
Medical Corporation service
During operation, “CAL”
ÀDVKHV
Sensor signal is out of monitoring range
Recalibrate the monitor, ensure proper calibration key
pressed for calibration gas of room air or 100% oxygen
If alert persists, replace sensor
If alert persists following sensor replacement, call Ohio
Medical Corporation service
displays and
monitor beeps every 30
seconds
Monitor has approximately six hours of
operating time remaining
Replace the battery as soon as possible; then recalibrate
the monitor and reset the high and low alarm values
GLVSOD\V³´ÀDVK
-
es, both visual alarms
activate, and monitor
emits a three-tone beep
for four minutes; moni-
tor shuts OFF
Battery is expired and monitor is not
operating
Replace the battery as soon as possible; then, recalibrate
the monitor and rest the high and low alarm values.
“ERR” and error code
(01 to 08) display. Vi-
sual and audible alarms
activate; monitor locks
Microprocessor detects internal error
Note error code and see
Appendix E, Error Codes
Disconnect battery
Call Ohio Medical Corporation service
Possible physical
damage to instrument
Instrument is dropped and/or exposed
WRÀXLGV
Turn instrument OFF, then ON to initiate self-test. If
instrument is damaged, “ERR” and error code (01 to 08)
display. Disconnect battery. Call Ohio Medical Corporation
service
Appendix E
MiniOX
®
3000 Oxygen Monitor
Appendix D, Troubleshooting
D-1
