EDAN SE-1200 Express - Page 52

SE-1200 Series Electrocardiograph Service Manual Inspection and Troubleshooting
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The printed report is illegible
① The rubber roller of
the recorder casing
has stain.
② The elasticity of the
spring of the recorder
frame is not good.
① Clean the rubber roller
② Replace the spring
Some characters or
waveforms printed are
missing.
① The rubber roller of
the recorder casing
has a stain.
② Print head failure.
① Replace the rubber roller
② Replace the print head
Fail to detect paper
① There is a stain on the
detecting position of
the printing bracket.
② Reflective
photosensor failure
③ Main board failure
① Clean the stain on the
detecting position of the
printing bracket
② Replace the reflective
photosensor
③ Replace the main board
5. Parameter Troubles
Conditions
Possible Causes
Actions
No ECG waveform
① Defective connection
between the patient and
the electrodes
② Defective connection
between the patient
cable and the unit
③ ECG board failure
① Attach the electrodes to
the patient again or clean
the electrode area on body
surface with alcohol
② Connect the patient cable
to the unit
③ Replace the ECG board
ECG waveform is abnormal
or disturbed
① Defective connection
between the patient and
the electrodes
② Patient cable failure
③ ECG board failure
① Attach the electrodes to
the patient again or clean
the electrode area on body
surface with alcohol
② Replace the patient cable
③ Replace the ECG board
Heart rate is not accurate
① Waveform measuring
failure
① Adjust connections