Table of Contents
Calibrated against functional saturation
Measurement range: 1 to 100%
Measurement accuracy (± 1 SD):
70 to 100% ± 2 digits
70 to 100% ± 3 digits during conditions of
clinical patient motion
Below 70% unspecified
NOTE: SpO 2 measurement accuracy is
statistically derived and correlated to
simultaneous arterial blood gases measured on
a Radiometer OSM3 CO-oximeter. Refer to the
sensor instructions for specific accuracy data.
Pulse rate
Measurement range: 30 to 250 bpm
Measurement accuracy: ± 2% or ± 2 bpm
(whichever is greater)
Default alarm limits**
SpO 2 : high Off, low 90%
Pulse rate: high 160, low 40
Limits are adjustable.***
Sensor emitter wavelength ranges
Red LED: 650 to 665 nm
Infrared LED: 930 to 950 nm
Average power: ≤ 1 mW
Pulse Oximetry, Nellcor
(N-XNSAT)
®
Display update time: 5 seconds
Averaging time: 5 to 7 seconds
Plethysmographic waveform scaling: automatic
SpO 2
Calibrated against functional saturation
Measurement range: 1 to 100%
Measurement accuracy (% SpO 2 ± 1SD):
70 to 100% (± 2 digits to ± 3.5 digits,
depending on the sensor)
Below 70% unspecified
See the "User's Reference Manual" for a list
of approved sensors and accuracy details.
NOTE: SpO 2 measurement accuracy is based
on testing healthy adult volunteers in induced
hypoxia studies.
Pulse rate
Measurement range: 30 to 250 bpm
Measurement accuracy: ± 3 digits
Default alarm limits**
SpO 2 : high Off, low 90%
Pulse rate: high 160, low 40
Limits are adjustable.***
Sensor emitter wavelength ranges
Red LED: 660 nm
Infrared LED: 920 nm
Airway Gases
Sampling rate*: 200 ml/minute
Sampling delay: 2.5 seconds typical with a
3 m sampling line
Total system response time: 2.9 seconds typical
with a 3 m sampling line, including
sampling delay and rise time
Warm-up time:
2-5 minutes, 30 minutes for full spec.
Respiration rate (RR)
Measurement range: 4 to 60 breaths/minute
Detection criteria: 1% variation in CO 2
Default alarm limits**
EtCO 2 high 8%, low 3%
FiCO 2 high 3%, low Off
FiN 2 O high 82%
EtO 2 high Off, low 10%
FiO 2 high Off, low 18%
EtDes high 12%, low Off
FiDes high 18%, low Off
EtEnf high 3.4%, low Off
– 3 –
FiEnf high 5.1%, low Off
EtHal high 1.5%, low Off
FiHal high 2.2%, low Off
EtIso high 2.3%, low Off
FiIso high 3.4%, low Off
EtSev high 3.4%, low Off
FiSev high 5.1%, low Off
Non-disturbing gases:
Ethanol C 2 H 5 OH (< 0.3%)
Acetone (< 0.1%)
Methane CH 4 (< 0.2%)
Nitrogen N 2
Carbon monoxide CO
Nitric oxide NO (< 200 ppm)
Water vapor
Effect of helium: decreases CO 2 readings
< 0.6 vol% typically
Maximum effect on readings:
CO 2 < 0.2 vol%,
N 2 O, O 2 < 2 vol%
Anesthetic agents: < 0.15 vol%
Carbon dioxide (CO
)
2
Measurement range:
0 to 15%, (0 to 15 kPa), (0 to 113 mmHg)
Measurement rise time < 400 ms (typical)
Accuracy*: +/-(0.2 vol% + 2% of reading)
Gas cross effects: < 0.2 vol% (O 2 , N 2 O,
anesthetic agents)
Oxygen (O
)
2
Measurement range: 0 to 100%
Measurement rise time: < 400 ms typical
Accuracy: +/-(1 vol% + 2% of reading)
Gas cross effects:
< 1 vol% anesthetic agents
< 2 vol% N 2 0
Nitrous oxide (N
O)
2
Measurement range: 0 to 100%
Hide quick links:
Table of Contents
