17
Operating the Avant 9700
Trend Waveform View
Trend Waveform allows viewing of the last 24 hours of patient SpO
2
and Pulse Rate data stored
in nonvolatile patient memory. The SpO
2
displayed in green and Pulse Rate waveform displayed
in red, appear on the same LCD screen.
The Left and Right Control buttons are used to move the cursor, located at the bottom of the LCD
display, to any point on the trend waveform display. The length of time, the Time, Date, SpO
2
and Pulse Rate data for the current cursor position appear at the top of the LCD display in light
blue numeric text.
Figure 4: Trend Waveform
The Plus and Minus buttons are used to scale (focus) specific displayed data.
Trend view time: 15 minutes (1/4 hour) of data (at maximum scale)
24 hours of data (at minimum scale)
If multiple data are displayed at a single point when the LCD is at minimum scale, only the lowest
SpO
2
and Pulse Rate values are displayed in text at the top of the LCD.
When the oximeter does not have data for any given period, the values are shown as
SpO2 = --- or HR = ---. When this occurs, the waveform for that period is not visible.
NOTE:
Gaps in data collection are identified with a white vertical line.
In Trend Waveform view, specific records may be selected by positioning the cursor and
pressing the LCD Screens button. One of three pre-defined SpO
2
and Pulse Rate ranges
selected during setup can be displayed. Those ranges are as follows:
Mode
%SpO
2
Heart Rate
1 (default)
70-100%
30-250 BPM
2
80-95%
50-200 BPM
3
85-100%
80-250 BPM
SpO
2
Scale
Pulse Rate Scale
SpO
2
Trend Line
Pulse Trend Line
SpO
2
Scale
Pulse Rate Scale
SpO
2
Trend Line
Pulse Trend Line
SpO
2
Scale
Pulse Rate Scale
SpO
2
Trend Line
Pulse Trend Line
Tim e
Date
SpO
2
Value
Pulse Value
Cursor
Cursor
Trend View
