Background and Identification
The Nonin Onyx is a pulse oximeter manufactured by Nonin Medical. Pulse oximeters are non-invasive devices used to monitor a patient’s oxygen saturation. Nonin Medical designs and manufactures pulse oximeters, regional oximeters, and capnographs for patient monitoring.
The Nonin Onyx integrates a finger clip sensor with the electronics of the Nonin 8500 pulse oximeter. The Onyx model is small and lightweight, which allows patients to carry the device with them. This oximeter displays numerical values for the patient’s pulse rate in beats per minute and functional arterial hemoglobin oxygen saturation in percentage. These values are displayed on light-emitting diode digital displays.
When the device detects each pulse, the monitor’s PERFUSION DISPLAY blinks. The pulse quality signals are rated as ‘good,’ ‘marginal,’ or ‘inadequate’ and are indicated by the pulse quality indicator blinking green, yellow, or red, respectively.
The Onyx model is powered by two AAA batteries. It is advertised to operate for at least 1,000 spot-checks or twelve hours of continuous operation before battery replacement is required. When the battery level is low, the digital displays will blink once per second.
The Nonin Onyx pulse oximeter includes the name “NONIN” printed in bold capital letters above the name “Onyx” printed in cursive font. On the back of the device, the serial number is printed near the center of the back panel.
Technical Specifications
Oxygen Saturation Range: 0 to 100%
Pulse Rate Range: 18 to 300 pulses per minute
Displays
- Patient Indicators: Tri-color perfusion light-emitting diode (LED)
- Digital Displays: Two 3-digit 7-Segment LEDs
Measurement Wavelengths
- Red: 660 Nanometers
- Infrared: 910 Nanometers
Accuracy
- %SpO2 Accuracy: 70-100% +- 2 digits
- Rate Accuracy: +- 3% +- 1 digit
Temperature
- Operating: 32°F to 122°F (0° to +50°C)
- Storage/ Transportation: -4°F to 122°F (-20° to +50°C)
Humidity
- Operating: 10 to 90% Non Condensing
- Storage/ Transportation: 10 to 95% Non Condensing
Power Reguirements: Two AAA Cells
Battery Life
- Operating: Approximately twelve hours of continuous operation
- Storage: Three months
Patient Isolation: Not Applicable
Leakage Current: Not Applicable
Dimensions: 13"Wx13"Hx2.2"L Cmx 5.7 Cm)
Weight: Two ounces (60 gm), including two AAA alkaline batteries