Background and Identification
The Novametrix Model 511 is a pulse oximeter manufactured by Novametrix Medical Systems. Pulse oximeters are non-invasive devices used to monitor a patient’s oxygen saturation. Novametrix was a producer of airway pressure monitors, transcutaneous blood gas monitors, pulse oximeters, capnographs, respiratory mechanics monitors, and volumetric carbon dioxide monitors. Novametrix is now owned by Philips Respironics, a medical device conglomerate.
The 511 model pulse oximeter measures the patient’s pulse rate and oxygen saturation. The oxygen saturated blood absorbs different amounts of light compared to unsaturated blood, so the amount of light absorbed by the patient’s blood is used to calculate oxygen saturation. This model displays the “functional” oxygen saturation, which represents the amount of oxyhemoglobin as a percentage of the hemoglobin that can be oxygenated.
The Novametrix Model 511 is designed to be used in conjunction with OxySnap SuperBright saturated sensors. These sensors can be identified by an 87xx series part number.
The 511 model includes the name “NOVAMETRIX MEDICAL SYSTEMS INC.” printed in capital letters in the bottom center of the monitor’s front panel. The name “511 Pulse Oximeter” is printed in the right-center of the device’s front face. A liquid-crystal display (LCD) displays the patient’s oxygen saturation on the left-hand side as a percentage and the patient’s pulse rate in beats per minute on the right-hand side.
Technical Specifications
Oxygen Saturation
- Range: 0-100%
- Accuracy: 80-100% ± 2%, 0-79% unspecified (Approximately 68% of the observations are within the accuracy claim.)
- Display Resolution: 1 SpO2 digit
* Averaging Time: fixed at 8 seconds
- Settling Time: Display settles to within 1% of the final reading less than 15 seconds after the sensor is properly applied.
Pulse Rate
- Range: 30-250 beats per minute (bpm)
- Accuracy: ± 1% of full scale (Approximately 68% of the observations are within the accuracy claim.)
* Display Resolution: 1 bpm
- Averaging Time: fixed at 8 seconds
- Settling Time: Display settles to within 1% of the final reading less than 15 seconds after the sensor is properly applied
General Specifications
- Operating Environment: 50-104 °F (10-40 °C), 0-90% relative humidity (non-condensing)
- Weight: 13 ounces including batteries (without printer)
- Dimensions: Height 6.25 inches, Width 3.75 inches, Depth 1.3 inches
- Battery Type: four “AA” alkaline cells. Life, 12 hours.
- Optional External Power Supply
- Input: 105-130 VAC, 50/60Hz* or 230 VAC, 50/60Hz**
- Output: 6 VDC @ 150ma
- Cord Length: 6 ft
Additional Information
Novametrix Model 511 User Manual