Ventilator & Calibration Troubleshooting
906-0731-04-01 Rev. C ZOLL Ventilator Service Manual 6–49
2314
Pulse Ox Sensor Off Patient
Alarm triggers when an operating sensor loses the patient
signal. The most common cause is when the sensor
disconnects from the patient or is misaligned with the sensor site.
This alarm can also be caused by poor perfusion at the sensor site
which doesn’t provide an adequate signal. In these cases try another
site. Replace the sensor if another sensor is
available. If the alarm condition cannot be resolved the user should
remove the sensor from the patient and put the pulse oximetry moni-
tor in standby “stby”.
Mitigation/Info: Check Pulse Ox Sensor Site, Check Patient for
Peripheral Pulse, Change Placement, Check Sensor
Operation, Replace Sensor,**Turn Off Pulse Ox Monitoring**
CPU/UIM and SPO Stack
Service Kit
2401
SpO2 Low
Alarm triggers whenever the SpO
2
value drops below the Low SpO
2
Limit. The default value for the limit is 94%. Corrective actions are
increasing oxygenation by increasing the FIO
2
or PEEP settings.
PEEP should only be changed based on
consultation with the attending physician. When using low flow O
2
the
user should increase the flow of O
2
to the low flow O
2
reservoir.
Mitigation/Info: SpO2 Below Limit, Increase FIO2, Check O2 Supply,
Increase PEEP Per Physician, **Consult Physician**
CPU/UIM and SPO Stack
Service Kit
2410
Heart Rate High
Alarm triggers when the heart rate is greater than the High Heart Rate
Limit. The default value for the limit is
120 beats/minute. The user should consult with the attending physi-
cian on how best to reduce the heart rate to an
acceptable level.
Mitigation/Info: Heart Rate Above Limit, Check High Limit
Setting, **Consult Physician**
CPU/UIM and SPO Stack
Service Kit
2411
Heart Rate Low
Alarm triggers when the heart rate is less than the Low Heart Rate
Limit. The default value for the limit is 40 beats/minute. The user
should consult with the attending physician on how best to increase
the heart rate to an acceptable level.
Mitigation/Info: Heart Rate Below Limit, Check Low Limit
Setting, **Consult Physician**
CPU/UIM and SPO Stack
Service Kit
2421
Self Check Fault
Alarm triggers when there is a failure of the input protection circuit and the
device is able to operate.
Power Interface Module
Service Kit
2423
Self Check Fault
Alarm triggers when the internal power circuit has failed and external
power is connected but cannot be used.
Power Interface Module
Service Kit
Service Code Associated Alarm Name/Description Service Kit/Resolution
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