Pulse Oximeter - Nellcor NPB-75 Service Manual

12.4.2 Pulse Oximeter

12.4.2.1 Display Ranges
SpO Saturation Range
2
0-100% SpO
2
Saturation Accuracy
(% SpO , ±1 SD)
2
Adults 70-100%±2 digits
0 - 69% Unspecified
Neonates 70-100%±3 digits
0 - 69% Unspecified
Note: Accuracies are expressed as plus or minus "X" digits
(oxygen saturation percentage points) between saturations
of 70-100%. This variation equals plus or minus one
standard deviation (1SD), which encompasses 68% of the
population. All accuracy specifications are based on testing
the subject monitor on healthy adult volunteers in induced
hypoxia studies across the specified range. Adult accuracy
is determined with Oxisensor II D-25 sensors. Neonatal
accuracy is determined with Oxisensor II N-25 sensors. In
addition, the neonatal accuracy specification is adjusted to
take into account the theoretical effect of fetal hemoglobin
in neonatal blood on oximetry measurements.
Pulse Rate Range
20-250 beats per minute (bpm)
Pulse Rate Accuracy
± 3 bpm
Note: Pulse rate accuracy is expressed as ±3 bpm across the
display range. This variation equals ±1 standard deviation
(1SD), which encompasses 68% of the population.
Alarms
SpO high, SpO
2
low, Pulse high, Pulse low
2
Section 12: Specifications
12-3