• ECG/Arrhythm: Select ECG/Arrhythm if you want the heart rate from the ECG to be the alarm
Even with Alarm Source set to ECG/Arrhythm, if you switch the ECG measurement off, the
monitor will automatically use Pulse as alarm source, provided a pulse source is switched on and
Pulse: If you select Pulse as the active alarm source, the monitor will prompt you to confirm your
choice. Be aware that if you select Pulse, all arrhythmia and ECG HR alarms are switched off.
• Auto: If the Alarm Source is set to Auto, the monitor will use the heart rate from the ECG
measurement as alarm source whenever the ECG measurement is switched on and at least one ECG
lead can be measured without an INOP condition.
The monitor will automatically switch to Pulse as the alarm source if:
– a valid ECG lead can no longer be measured
– a Pulse source is switched on and available.
The monitor then uses the pulse rate from the measurement currently active as system pulse. While
Pulse is the alarm source, all arrhythmia and ECG HR alarms are switched off. If an ECG lead
becomes available again, the monitor automatically uses ECG/Arrhythm as alarm source.
If the ECG measurement is switched off, the monitor will always change to Pulse as alarm source, if a
Pulse source is available. One exception to this rule can arise when you have a telemetry device paired with
your monitor. The monitor ECG is then deactivated but the monitor may be configured to allow only
ECG as the active alarm source (see setting AlarmSource Sel.). In this case the monitor will not
switch to Pulse as alarm source and Pulse will not be available as a selection in the ECG/Pulse Alarms
Selecting Pulse as the active alarm source for HR/Pulse switches off most arrhythmia alarms (see the
Instructions for Use), including Asystole, Vfib and Vtach alarms, and the heart rate alarms. This is
indicated by the crossed-out alarm symbol beside the ECG heart rate numeric and the message
ECG/ARRH ALARM OFF, if configured (see "ECG Configuration Implications" on page 35).
High and low pulse rate and extreme bradycardia and extreme tachycardia alarms from Pulse are active.
ECG/Arrhy Alarms This setting is only available if Alarm Source is set to ECG/Arrhythm or
Auto. Be aware that with Alarm Source set to ECG/Arrhythm, if you switch ECG/Arrhy
Alarms off, all Pulse alarms are switched off as well.
Pulse Alarms This setting is only available if AlarmSource is set to Pulse and a pulse signal is
currently measured. Be aware that with Alarm Source set to Pulse, if you switch Pulse Alarms
off, all ECG and Arrhythmia alarms are switched off as well.
High Limit/Low Limit ECG and Pulse share the same alarm limits. These alarm limits apply to
the currently selected alarm source, either ECG/Arrhythm or Pulse. Note that if you change the High/Low
alarm limits in the ECG/Pulse Alarms menu, this will also change the High/Low alarm limits in the
Setup Pulse menu and Setup ECG menu and vice versa.
4 Configuration Settings Appendix