Operator's Manual

Table Of Contents
BeneVision N1 Patient Monitor Operator’s Manual 8 - 19
3. Set ST Alarm Delay.
8.8.1.2 Changing Leads for ST Display
The monitor automatically selects the three most deviated leads for ST display. You can also manually select the
leads. To do so, follow this procedure:
1. Select the ST numeric area, ECG numeric area or ECG waveform area to enter the ECG menu.
2. Select the ST tab select the Setup tab.
3. Set ST Segment. You can select up to 3 leads.
8.8.1.3 Showing ISO Point, J Point, and ST Point Marks
In the waveform area, the ISO point, J point, and ST point mark do not display on the ST segments by default. To
show these marks, follow this procedure:
1. Select the ST numeric area, ECG numeric area or ECG waveform area to enter the ECG menu.
2. Select the ST tab select the Setup tab.
3. Switch on Show Markers.
8.8.1.4 Changing the ST Unit
The unit of ST measurements can be millivolt (mV) or millimeter (mm). To change the ST unit, follow this
procedure:
1. Select the Main Menu quick key from the System column select Maintenance input the required
password select .
2. Select the Unit tab.
3. Set ST Unit.
8.8.2 Adjusting ST Measurement Points
8.8.2.1 About ST Point, ISO Point, and J Point
The ST deviation value for each beat is the potential difference between the isoelectric (ISO) point and the ST
point. The ISO point provides the baseline. The ST point is at the midpoint of the ST segment. The J point is the
end of the QRS complex. As the J point is a fixed distance away from the ST point, it can be useful to help you
correctly position the ST point.
(1 ) I S O po i n t ( 2) J po i nt ( 3 ) S T p o i n t ( 4 ) S T d e v i a t io n
P
R
Q
S
T
(1) (2) (3) (4)