Accutorr Plus Service Manual 0070-10-0691 2 - 3
Specifications Performance Specifications
2.1.7 Nellcor
®
SpO
2
Range: 70-100% SpO
2
Display Resolution: 1% SpO
2
SpO2 Response Time: 4.5 to 6.5 seconds
Display Update: Less than 4 seconds
Calibration: Factory Calibrated to Functional Saturation
Accuracy*: ± 2 digits from 70 - 100% SpO
2
- Adult
± 3 digits from 70 - 100% SpO
2
- Neonates
<70% unspecified
Pulse Rate Range: 21 to 249 BPM
* Neonatal accuracy specifications are based upon testing the N-3000 and N-25 neonatal sensors on
healthy adult volunteers in induced hypoxia studies, in the range of 70 - 100% SpO2. The specified accu-
racy also takes into account published literature which predicts that there may be a small difference in % of
SpO2 reported by the oximeter when measurements from adult and fetal blood with 100% fetal hemoglobin
are compared. Fetal hemoglobin is present in concentrations varying from 10% to 90% in neonatal blood,
and this percentage declines over time. As the percentage of fetal hemoglobin in neonatal blood declines,
the theoretical effect on accuracy due to this source is reduced.
2.1.8 Masimo
®
SpO
2
Range: 70-100% SpO2
Display Resolution: 1% SpO
2
Display Update: < 4 seconds
SpO2 Accuracy Saturation during No Motion Conditions
1
Adults / Pediatrics: 70% to 100% ± 2
digits
5
<70% unspecified
Neonates (LNOP/LNCS): 70% to 100% ± 3 digits
SpO2 Accuracy Saturation during Motion Conditions
6
Adults / Pediatrics
2
: 70% to 100% ± 3 digits
<70% unspecified
Neonates
3
(LNOP): 70% to 100% ± 4 digits
Neonates
3
(LNCS): 70% to 100% ± 3 digits
<70% unspecified
SpO
2
Response Time: 10 secs (Display Averaging Time is not
user-selectable for Masimo
®
. It will be set to
the default value of 8 seconds.)
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