20
If the alarm volume is 0, the top line in the main menu will show '!'
VII. Trend
1. The graph trend
Figure 12
The monitor stores EtCO
2
, PR, SpO
2
and PR as a group of data every
12 seconds (Adjustable in Store Interval under New Patient menu) with
accumulated trend up to 24hours respectively. The stored data is retained
even the device is shut off.
The symbol will appear on screen when the storage is full. There are three
options to further store the data.
1. Change patient ID under NEW PATIENT menu.
2. Change store mode to AUTO under NEW PATIENT menu, in auto mode
data will be stored and renewed when reaches its limits.
3. Select CLEAR MEMORY under NEW PATIENT menu to empty the stored
data.
Figure 12 shows that the time base for the trend page is 1 hours and
every point indicates the result of every 12 second. The top line of this
page indicates patient’s ID number, the start time of this page
(date/month/year hour : minute), current page no. and sum pages
(24 pages in total).