BeneVision N1 Patient Monitor Operator’s Manual
8 - 9
1.
Select the
Main Menu
quick key
→
from the
System
column select
Maintenance
→
input the required
password
→
select .
2.
Select the
Alarm
tab
→
select the
Other
tab.
3.
Set the priority of
ECG Lead Off
.
8.5.6
Adjusting the QRS Volume
To adjust the QRS volume, follow this procedure:
1.
Select the ECG numeric area or waveform area to enter the
ECG
menu.
2.
Select the
Setup
tab.
3.
Set
QRS Volume
.
When valid SpO
2
measurements are available, the monitor adjusts the pitch of QRS tone based on the SpO
2
value.
8.5.7
Adjusting the Minimum QRS Detection Threshold
To avoid false asystole alarm due to low R wave amplitude, and to avoid tall T waves and P waves being mistaken
for QRS complexes, the monitor provides a means to manually adjust the minimum QRS detection threshold.
To adjust the minimum QRS detection threshold, follow this procedure:
1.
Select the ECG numeric area or waveform area to enter the
ECG
menu.
2.
Select the
Setup
tab and set
Filter
to
Monitor
.
3.
Select the
QRS Threshold
tab.
4.
Select up or down arrow buttons to adjust the minimum threshold for QRS detection. Selecting
Default
resets the QRS threshold to the default value (0.16 mV).
CAUTION
•
The setting of the QRS detection threshold can affect the sensitivity for arrhythmia, ST, QT/QTc
detection, and heart rate calculation.
•
If QRS amplitude is low, the monitor might not be able to calculate heart rate and false asystole calls
may occur.
NOTE
•
The minimum QRS detection threshold can only be adjusted when the ECG filter is set to Monitor.
8.5.8
Selecting the ECG Standard
Select the ECG standard according to the leadwires you are using. To select the ECG standard, follow this
procedure:
1.
Select the
Main Menu
quick key
→
from the
System
column select
Maintenance
→
input the required
password
→
select .
2.
Select the
Module
tab
→
ECG
tab.
3.
Set
ECG Standard
to
AHA
or
IEC
.
8.6
Monitoring Arrhythmia
Arrhythmia monitoring is intended for adult, pediatric, and neonatal patients.
