GE Corometrics 250 Series, Service Manual, Page: 191 / 252

Revision D 250 Series Maternal/Fetal Monitor 5-49
2020551-001
Troubleshooting: General Troubleshooting
Internal UA Troubleshooting
MECG Troubleshooting
Table 26. Internal UA Troubleshooting
Problem Probable Cause Possible Solution
Internal pressure not measuring correctly.
„
Transducer not properly connected to
monitor.
„
Air bubble in dome; or catheter blocked.
„
Dome is cracked.
„
Strain gauge not at same height as
catheter tip.
„
Catheter has fallen out of place.
„
Catheter or strain gauge not zeroed.
„
Service required.
„
Ensure transducer is securely attached
to monitor.
„
Flush dome and catheter.
„
Replace dome.
„
Adjust strain gauge height.
„
Replace catheter.
„
Calibrate catheter or strain gauge.
„
Call Biomedical Engineering
Department.
CHECK IUP message displayed in UA area
of the display.
„
Blockage in fluid-filled catheter.
„
Fetus pressing directly on catheter.
„
Defective strain gauge or catheter.
„
Service required.
„
Flush catheter. Re-zero. Replace
catheter if necessary.
„
Reposition by twisting catheter.
„
Replace strain gauge or catheter.
„
Call Biomedical Engineering
Department.
Table 27. MECG Troubleshooting
Problem Probable cause Possible solution
MECG erratic or not functioning properly.
„
Patient cable not properly connected to
monitor.
„
Electrodes not properly placed.
„
Clips not attached to electrodes properly.
„
Electrode gel dried.
„
Defective MECG cable.
„
Service required.
„
Selected lead providing
inadequate signal.
„
Ensure patient cable is securely
attached to monitor.
„
Re-apply electrodes.
„
Check clip attachments.
„
Check electrodes and re-apply gel if
necessary.
„
Replace cable.
„
Call Biomedical Engineering
Department.
„
Change lead selection on MHR/P Setup
screen.
Dashes (– – –) shown in MHR/P area of
display.
„
Monitor unable to make a determination
due to insufficient signal.
„
Ensure patient is not asystolic.
„
Ensure electrodes are firmly secured to
patient.