Performance Specifications; General; Spo 2; Interfering Substances - GE TuffSat User's Manual And Service Manual

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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
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):
First reading (full accuracy): ≤ 12 seconds
Resolution: 1 bpm

PI r pulsatile value

Range: 0.01 to 9.99
Averaging interval: 12 seconds
(root mean square of paired data; previously represented by
rms
±1 standard deviation):
70 to 100% ± 2 digits
Below 70% unspecified
40 to 100: ± 2 bpm
100 to 255: ± 2%
Compliance and Specifications
4-3

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