Radical Signal Extraction Pulse Oximeter Operator’s Manual
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t r o u b l e s h o o t i n g
T r o u b l e s h o o t i n g
The following chart describes what to do if the Radical system does not operate properly
or fails.
The following chart describes what to do when encountering common problems:
NOTE:
When a version R4 or later handheld is connected to a prior version docking
station (R2.2 or earler), the handheld component will continue to accurately monitor SpO
2
and pulse rate, however, certain Radical features normally accessed through the docking
station, including SatShare, analog output and serial output will not be available to the
user.
PROBLEM
POSSIBLE CAUSE(S)
RECOMMENDATION
HANDHELD BATTERY
DOES NOT CHARGE
AC power cable may be
disconnected.
Restore power to the device.
PRINT FUNCTION DOES
NOT WORK
Wrong serial cable is
used.
Make sure a null modem cable is
used.
LED LIGHTS ON LEFT
SIDE OF DOCKING
STATION
CONTINUOUSLY FLASH
Incompatable version of
software on Radical
handheld and docking
station.
Upgrade to current software
versions.
Match handheld to docking station
with compatable software versions.
BATTERY RUN-TIME IS
SIGNIFICANTLY
REDUCED
Memory effects
Use Battery Discharge function as
described in Section 4,
Service.
PROBLEM
POSSIBLE CAUSE(S)
RECOMMENDATION
UNIT DOES NOT POWER
ON.
One or both of the fuses
have blown.
Replace the fuses.
UNIT POWERS ON BUT
THE GRAPHIC DISPLAY
IS BLANK.
The viewing contrast is
not correct.
Use the Backlight/Contrast button to
adjust the viewing angle. If the
condition persists, the unit requires
service.
CONTINUOUS SPEAKER
TONE.
Internal failure.
Unit requires service. Press the Alarm
Silence button to silence the alarm. If
alarm continues to sound, power down
unit and remove Handheld battery if
necessary.
BUTTONS DON’T WORK
WHEN PRESSED
Internal failure.
Unit requires service.
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Radical Signal Extraction Pulse Oximeter Operator’s Manual
* The SERVICE REQUIRED message fills the entire display.
MESSAGE
POSSIBLE CAUSE(S)
RECOMMENDATION
NO SENSOR
Sensor not fully inserted
into the connector.
Unit is searching for
patient’s pulse.
May be an incorrect sensor, or a defective
sensor or cable. Insert sensor into
connector. Disconnect and reconnect
sensor. Refer to the instructions for the
sensor being used.
Disconnect and reconnect the sensor with
the logos matching.
PULSE SEARCH
Unit is searching for
patient’s pulse.
If values are not displayed within 30
seconds, disconnect and reconnect
sensor. If pulse search continues, remove
sensor and replace on a better perfused
site.
SENSOR OFF
Sensor off patient.
Disconnect and reconnect sensor.
Reattach sensor.
DEFECTIVE
SENSOR
Broken sensor cable wire
or inoperative LEDs or
faulty detector
Replace sensor. Refer to the instructions
for the sensor being used.
SERVICE
REQUIRED*
Internal Failure.
Unit requires service.
a l a r m s / m e s s a g e s
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