GE Corometrics 126, Service Manual

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15-12 120 Series Maternal/Fetal Monitor Revision B
20155 90- 001
Troubleshooting: Maternal Pulse Oximetry Troubleshooting
Maternal Pulse Oximetry Troubleshooting
Table 15-9. Maternal Pulse Oximetry Troubleshooting
Problem Probable Cause Possible Solution
COMM
message shown in MSpO
2
area of
display.
Communication error between the built-in
MSpO
2
module and the remainder of the
monitor circuitry.
Contact Biomedical Engineering
Department.
Dashes (– – –) shown in %MSpO
2
display
area.
„
Monitor unable to make a determination
due to insufficient signal.
„
Improperly applied sensor.
„
Excessive maternal movement.
„
Excessive ambient light.
„
Damaged sensor
„
Check patient. The patient may be
experiencing shock, hypotension, severe
vasoconstriction, severe anemia,
hypothermia, arterial occlusion proximal
to the sensor, or cardiac arrest.
Ensure that the intermediate cable is
firmly attached to the monitor and to the
sensor assembly.
„
Ensure sensor is not too tight. Move
sensor to another location.
„
Restrict patient limb movement.
Restrain limb if necessary.
„
Cover sensor with opaque material.
„
Replace sensor.
MHR/P Pulse source is blank when MSp0
2
is selected
SLOW mode selected
Select NORMAL or FAST mode on MSp0
2
setup screen.
REPAIR
message shown in MSpO
2
area of
display.
System error or self-test failure.
Contact Biomedical Engineering
Department.