GE b30, Technical Reference Manual

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E-PSM(P)W Troubleshooting
4-15
Document no. 2044677-001
3.4 Impedance respiration
Problem Cause What to do
No resp trace Waveform not selected on the screen Press the Monitor Setup key and make
adjustments.
Module not plugged in correctly Re-plug the module.
Unacceptable resp
waveform Poor electrode or poor electrode skin
contact Electrodes from different
manufacturers are used. Too
much/little gel is used.
Poor electrode condition Electrodes are dried out.
Improper site of electrodes Check that electrodes are not placed
over bones, active muscles, or layers of
fat.
Improper skin preparation Remove body hair. Clean attachment
site carefully with alcohol.
Faulty/ dirty ECG cable. Change new cable.
Message: ‘SMALL RESP
CURVE’ Respiration signal is very small With 3-lead cable try another lead
connection I, II, III or try 5-lead cable.
Message: ‘APNEA ALARM’,
and respiration waveform
normal Respiration source is CO
2
Check respiration source and change it
to correct one.