S10/S12/S10A/S12A Patient Monitor User’s Manual
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discharge should be delivered within 60 ms of the peak of the R-wave. The
signal at the ECG output on the monitors is delayed by maximum of 25ms.
8.13. ECG Troubleshooting
This section lists the problems that might occur. If you encounter problems when
using the monitor or accessories, check the table below before requesting for services. If
the problem persists after you have taken corrective actions, contact your service
personnel.
Problem Corrective Actions
Noisy ECG traces
1. Check that electrodes are not detached or dry. Replace with fresh and
moist electrodes if necessary.
2.Check that leadwires are not defective. Replace leadwires if necessary.
3. Check that patient cable or leadwires are routed too close to other
electrical devices. Move the patient cable or leadwires away from
electrical devices.
Excessive
electrosurgical
Interference
Use ESU-proof ECG cables.
Muscle Noise
Inadequate skin preparation, tremors, tense subject, and/or poor electrode
placement.
1. Perform skin preparation again and re-place the electrodes. For more
information, see8.4.1 Preparing the Patient Skin
2.Apply fresh, moist electrodes. Avoid muscular areas.
Intermittent Signal
1. Check that cables are properly connected.
2.Check that electrodes are not detached or dry. Perform skin preparation
again as described in 8.4.1 Preparing the Patient Skin and apply fresh
and moist electrodes
3. Check that the patient cable or leadwires are not damaged. Change
them if necessary.
Excessive alarms:
heart rate, lead fault
1. Check that electrodes are not dry. Perform skin preparation again and
replace the electrodes. For more information, see 8.4.1 Preparing the
Patient Skin.
2.Check for excessive patient movement or muscle tremor. Reposition the
electrodes. Replace with fresh and moist electrodes if necessary.
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