4 Configuration Settings Appendix
• Ext. Monitor: Using this filter results in an ECG bandwidth of 0.5 – 150 Hz. Use when diagnostic
quality is required but low frequency interference or a wandering baseline may be expected. The upper
edge frequency is the same as the Diag setting and the lower edge frequency is the same as the Monitor
• Filter: Using this filter reduces interference to the signal and results in an ECG bandwidth of 0.5 –
20 Hz for all patient categories. It should be used if the signal is distorted by high frequency or low
frequency interference. High frequency interference usually results in large amplitude spikes making the
ECG signal look irregular. Low frequency interference usually leads to a wandering or rough baseline. In
the operating room, the Filter reduces artifacts and interference from electrosurgical units. Under
normal measurement conditions, selecting Filter may suppress the QRS complexes too much and
thus interfere with the clinical evaluation of the ECG displayed on the monitor. This does not affect the
ECG analysis performed by the monitor. If AutoFilter ("ECG Application Configuration" on page
114) is set to On, the filter setting will automatically be set to Filter if electromagnetic interference is
• Diag (Diagnostic): The setting Diag selects the highest available ECG bandwidth which is 0.05 to
150 Hz for all patient categories. Use when diagnostic quality is required. The unfiltered ECG wave is
displayed so that changes such as R-wave notching or discrete elevation or depression of the ST
segments are visible.
Sync Out Chan 1: Output signal of the first Sync Out channel. This setting cannot be changed
Sync Out Chan 2: Output signal of the second Sync Out channel. Possible choices are ECG
AnlgWave (default) and ECG SyncPuls.
SyncPulse Sensit / SyncPulse Marker
These settings are only available in MP2/X2 and MP5 monitors. In the MP5 it is only available if an MIB/
RS232 interface is installed and the driver ECG Sync Pulse is configured for one of the MIB ports
(see the MP5 Service Guide for detailed setup information). If these requirements are met, the monitor
outputs a SyncPulse via the MIB/RS232 interface (MP5) or the ECG Sync Pulse Output Connector
(MP2/X2) which can be used to synchronize external medical devices (such as CT scanners) to the
patient's ECG. Both settings are available in monitoring mode and configuration mode.
• Set SyncPulse Marker to On to display SyncPulse markers in the ECG wave on the monitor
• SyncPulse Sensit lets you change the sensitivity of the Sync Pulse detection. If
SyncPulse Marker is switched On, and not every QRS complex in the ECG wave on the monitor
is marked with a Sync Pulse marker, you should increase the sensitivity (Medium or High) until you
see a marker for each QRS complex. If you see Sync Pulse markers in areas of the ECG wave other than
the QRS complexes, lower the sensitivity (Medium or Low).
Asystole Threshold This setting lets you adjust the time period between the point where the
monitor cannot detect a QRS complex and the indication of an asystole alarm. It also affects the way the
enhanced asystole detection behaves, see "General Global Settings Configuration Implications" on page
Color The color setting defines the color for ECG, Arrhythmia, ST, and QT. The color setting for
Pulse is taken from the system pulse source.