Rad-57 Signal Extraction Pulse CO-Oximeter Operator’s Manual 6-1
6
troubleshooting
Troubleshooting
The following chart describes what to do if the Rad-57 system does not operate properly
or fails.
PROBLEM POSSIBLE CAUSE(S) RECOMMENDATION
DEVICE DOES NOT
POWER ON
Low battery Check and/or replace the batteries.
BATTERY RUN-TIME
IS SIGNIFICANTLY
REDUCED
Effective battery life
will be reduced when
operating the device
below 5 degrees
Fahrenheit due to alkaline
battery technology.
Remove the batteries and allow them to
warm up to room temperature, re-install
them and check the battery indicator
level. If the battery capacity remains low,
replace batteries.
CONTINUOUS
SPEAKER TONE
Internal Failure
Device requires service. Press the Alarm
Silence button to silence the alarm. If
alarm continues to sound, power down
device and remove Handheld battery if
necessary.
BUTTONS DON’T
WORK WHEN
PRESSED
Internal failure Device requires service.
The following chart describes what to do when encountering common problems:
PROBLEM POSSIBLE CAUSE(S) RECOMMENDATION
SpO
2
NUMBER
FLASHES
Saturation alarm limit
exceeded.
Assess/address patient condition
Re-set alarm limits if indicated.
SENSOR OFF
MESSAGE
Sensor not connected to
patient properly.
Sensor is damaged.
Properly reapply the sensor on the patient
and reconnect the sensor to the device or
patient cable.
If the sensor is damaged, replace the
sensor.
NO SENSOR
MESSAGE
Sensor is disconnected
from patient cable.
Sensor connected upside
down into patient cable.
Check to see if the sensor LED is flashing.
Disconnect and reconnect the sensor. If the
LED fails to operate, replace the sensor.
LOW PERFUSION
Improper sensor type.
Poorly perfused site.
Sensor is too tight.
A disorder such
as hypothermia,
vasoconstriction,
hypovolemia, peripheral
vascular disease or
anemia.
Sensor is damaged.
Verify proper sensor and sensor size for
the patient.
Check and see if blood flow to the site is
restricted. Be sure that the sensor is not
on too tight.
Set the device to MAX sensitivity.
Warm the patient or sensor site.
Move sensor to better perfused site.