Compliance and Specifications
4-3
Performance specifications
Unless otherwise indicated, all specifications are nominal and are subject to
change without notice.
General
Total operational time: approximately 17 to 20 hours at room temperature using
alkaline batteries
Automatic power off (5 minutes after monitoring stops) to conserve battery
Microprocessor-controlled device
Automatic self-test at power on; automatic/continuous system diagnostics
SpO
2
Calibration: functional
Range: 0 to 100%
Accuracy, A
rms
(root mean square of paired data; previously represented by
±1 standard deviation):
70 to 100% ± 2 digits
Below 70% unspecified
NOTE: Accuracy may vary for some sensors; always check the instructions for the
sensor.
First reading (full accuracy): ≤ 12 seconds
Resolution: 1%
Interfering substances
Carboxyhemoglobin may erroneously increase readings in all pulse oximeters. The
level of increase is approximately equal to the amount of carboxyhemoglobin
present. Cigarette smokers and victims of smoke inhalation often have increased
levels of carboxyhemoglobin. Dyes that change usual arterial pigmentation, or
substances containing dyes, may also cause erroneous readings.
Sensor emitter wavelength ranges
Red LED peak wavelength range: 650 to 670 nm
Infrared (IR) LED peak wavelength range: 930 to 950 nm
Average power: ≤ 1 mW
Pulse rate
Range: 40 to 255 beats per minute (bpm)
Accuracy, assuming a constant pulse rate (± 1 standard deviation):
40 to 100: ± 2 bpm
100 to 255: ± 2%
First reading (full accuracy): ≤ 12 seconds
Resolution: 1 bpm
PI
r
pulsatile value
Range: 0.01 to 9.99
Averaging interval: 12 seconds
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