Philips HeartStart MRx - Audio Tones and Alarm Indications

Audio Tones and Alarm Indications 20 Troubleshooting
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Audio Tones and Alarm Indications
The following table describes the audio tones and alarm indications, when they occur, and their
meaning.
NOTE Alarm tone volume levels exceed 60 dB. See the HeartStart MRx Service Manual for alarm signal
pressure ranges.
Table 7 6 Audio Tones
Tone/Indication Definition
Single beep. Message tone. Accompanies a new message on the display. Informational
such as switching to the other battery.
Continuous tone, lower pitch than charged
tone.
Charging tone. Generated when the Charge button is pressed and continues
until the device is fully charged.
Continuous tone. Charged tone. Generated when the selected defibrillation energy is reached
and continues until the Shock button is pressed, the [Disarm] soft key is
pressed, or the device disarmed automatically after the configured time had
elapsed since pressing the Charge button.
Periodic chirp. Low battery or RFU failure. Repeated periodically while the condition
exists.
Continuous tone, alternating pitch. Device will shut down in one minute.
Tone repeated once a second.
Red alarm indicator message for applicable
HR/arrhythmia, apnea, extreme desat and
pressure disconnect alarms.
Philips’ Red Alarm Tone:
Generated while at least one red alarm is occurring.
High pitched tone repeated five times
followed by a pause.
Red alarm indicator message for applicable
HR/arrhythmia, apnea, extreme desat and
pressure disconnect alarms.
IEC Red Alarm Tone:
Generated while at least one red alarm is occurring.
Tone repeated every two seconds, lower pitch
than red alarm tone.
Yellow alarm indicator message for applicable
HR/arrhythmia, SpO
2
, NBP, Invasive
Pressures, Temperature, Pulse and EtCO
2
alarms.
Philips’ Yellow Alarm Tone:
Generated while at least one yellow alarm is occurring.