Background and Identification
The Nonin 7500 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 model 7500 is a portable, digital pulse oximeter used to measure, display, and record the patient’s pulse rate and functional oxygen saturation of arterial hemoglobin. This model can be used for spot-checking or continuous monitoring of patients. It is suitable for use with adult, pediatric, and neonatal patients during motion and no-motion conditions. Patients who are either well or poorly perfused can safely use this device.
The Nonin 7500 pulse oximeter features a digital display that presents the patient’s pulse rate and oxygen saturation measurements. The oxygen saturation display is placed on the left-hand side of the 7500 model’s front panel. Oxygen saturation is displayed as a percentage from 0 to 100. During alarm conditions, the numeric displays blink. The patient’s pulse rate is displayed on the right-hand side of the 7500 model’s front face. Pulse rate is presented in beats per minute between 18 and 321. These LED displays present values for alarm limits, volume, and date and time settings when setting the pulse oximeter.
The name “NONIN” is printed in bold capital letters in the bottom center of the monitor’s front face. The number “7500” is printed below the Nonin name in smaller font.
Technical Specifications
Oxygen Saturation Display Range: 0 to 100% SpO2
Pulse Rate Display Range: 18 to 321 pulses per minute (BPM)
Displays:
- Pulse Quality: LED, amber
- Sensor Alarm: LED, amber
- Pulse Strength Bargraph: LED, bargraph, tri-color segments
- Alarm Indicator: LED, bi-color
- Alarm Silenced: LED, amber
- Numeric Displays: 3-digit, 7-segment LEDs, green
- Low Battery: LED, amber
Alarm Volume:
- High: 75 dBA
- Low: 63 dBA
Informational Tone Volume:
- High: 67 dBA
- Low: 55 dBA
Measurement Wavelengths and Output Power:
- Red: 660 nm @ 0.8 mW maximum average power
- Infrared: 910 nm @ 1.2 mW maximum average power
Memory: 70 hours (assuming continuous operation)
Temperature:
- Operating: 0 °C to 40 °C (32 °F to 104 °F)
- Storage/Transportation: -40 °C to 70 °C (-40 °F to 158 °F)
- Time (from storage) for monitor to be ready for its intended use:
- 6 minutes to warm from -40 °C to 0 °C
- 23 minutes to cool from 70 °C to 40 °C
Humidity:
- Operating: 10 to 90% noncondensing
- Storage/Transportation: 10 to 95% noncondensing
Altitude (Operating): Up to 4,000 meters (13,123 feet)
Hyperbaric Pressure: Up to 4 atmospheres
Power Requirements (Mains): 100-240 VAC 50-60 Hz
Internal Power:
- Battery: 7.2 volt NiMH battery pack
- Operating Life (fully charged battery): 16 hours minimum
- Storage Life: 21 days minimum
- Recharge Rate: 4 hours maximum
Dimensions: Approximately 219 mm (8.6”) W x 92 mm (3.6”) H x 142 mm (5.6”) D
Weight: Approximately 900 grams (2 lbs) with battery
Warranty: 3 years
Classification per ANSI/AAMI ES60601-1 and CAN/CSA-C22.2 No. 60601-1:
- Type of Protection: Class II (on AC power with MPP30 power supply). Internally powered (on battery power)
- Degree of Protection: Type BF-Applied Part
- Mode of Operation: Continuous
- Enclosure Degree of Ingress Protection: IP33
Analog Outputs:
- SpO2 Output Range: 0-1 VDC (0-100% SpO2), 1.27 VDC (out of track)
- Pulse Rate Output Range: 0-1 VDC (0-300 BPM), 1.27 VDC (out of track)
- Event Maker: 0 V (no event), 1 V (event occurred)
- Accuracy: ±2% (SpO2), ±5% (Pulse Rate)
- Load Current: 2 mA maximum