A–1
A. TREND DOWNLOAD OPTION
Monitors configured with the Trend Download option are equipped with an RS-232
port for connecting a portable printer or a computer. The Trend Download option
expands the capabilities of the monitor to include the following:
• Collecting and storing patient monitoring data, or trends.
• Alarm annunciation.
• Setting the monitor clock.
• Printing trends or real-time data to an attached printer.
• Downloading trends to an attached computer.
Trend data collection
Trends are collected continuously and stored indefinitely, unless battery power is
lost. The monitor stores the patient number, time, date, measurement values (SpO
2
,
pulse rate, and PI
r
), SpO
2
limit violations, sensor OFF status, and alarm audio status.
The monitor can store a total of 48 hours of trends for up to 99 patients, depending on
how long each patient is monitored. A data point is stored every 4 seconds.
Patient identification number
When you power ON the monitor, a patient number (P01, P02 … P99) is displayed for
one second. The patient number is stored with the trend data collected during
monitoring and appears on printouts and reports to identify the data for that
patient. The patient number increments by one each time you power OFF the
monitor, connect a new patient, and power ON. It also increments when you power
OFF, then ON while monitoring the same patient.
Important: Each time you begin monitoring a new patient, power the monitor OFF,
then ON. Otherwise, trends for more than one patient will be stored under a single
patient number.
When the patient number exceeds P99, the numbering restarts at P01 and trends
currently stored in memory for P01 are erased. When memory is full, approximately
25% (12 hours) of the oldest trends are erased to make memory available for new
data.
NOTE: Patient numbering also restarts at P01 when all trends are erased from
memory, using the Trend Download PC software.
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