Principles Of Operation; Specifications - Nonin 9847V Operator's Manual

Principles of Operation

Pulse oximetry is a non-invasive method that passes red and infrared light through perfused tissue
and detects the fluctuating signals caused by arterial pulses. Well-oxygenated blood is bright red,
while poorly oxygenated blood is dark red. The pulse oximeter determines functional oxygen
saturation of arterial hemoglobin (SpO
red and infrared light as volume fluctuates with each pulse.

Specifications

Oxygen Saturation Display Range
Pulse Rate Display Range
CO Range
2
CO Response Time
2
Respiration Rate Range
Breath Detection Threshold
Saturation Declared Accuracy (A
Pulse Rate Declared Accuracy (A

CO Accuracy of Bar Graph Thresholds (A
2
Measurement Wavelengths and Output Power**
Alarm Volume Range:
Indicators
Audible Alarm Disabled Indicator: Dedicated icon, yellow
* ± 1 A represents approximately 68% of measurements at zero bias.
rms
** This information is especially useful for clinicians performing photodynamic therapy.
50
) from this color difference by measuring the ratio of absorbed
2
)*
rms
)*
rms
)*
rms
Red: 660 nanometers @ 0.8 mW max. avg.
Infrared: 910 nanometers @ 1.2 mW max. avg.
Pulse Quality Indicator: LED, tricolor
Numeric Displays: 3-digit, 7-segment LEDs, tricolor
CO Bar Graph: 8-segment bar graph, red
2
Low Battery Indicator: Dedicated icon, yellow
No Breath Indicator: Dedicated icon, red
Audible Indicator: Miniature speaker
0 to 100% SpO
2
18 to 450 beats per minute (BPM)
0 to >75mmHg
250 ms
1 to 60 breaths per minute
5 mmHg
70 - 100% ±3 digits for the Model 2000SL,
2000SA, and 2000T sensors.
Below 70% is not specified for all sensors.
± 3% ± 1 digit
±25% of reading (typical)
70–71 dBA
Technical Information