Used Nonin Model 7500 Pulse Oximeter, Hospital Medical Monitoring Devices
► Brief Introduction
The Nonin® Model 7500 Pulse Oximeter is a portable, tabletop device indicated for use in simultaneously measuring, displaying, and recording functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult, pediatric, infant, and neonatal patients. It is intended for spot-checking and/or continuous monitoring of patients during both motion and no-motion conditions, and for patients who are well or poorly perfused.
This device is designed to determine the percentage of arterial oxygen saturation of functional hemoglobin. Factors that
may degrade pulse oximeter performance or affect the accuracy of the measurement include the following:
- excessive ambient light
- excessive motion
- electrosurgical interference
- blood flow restrictors (arterial catheters, blood pressure cuffs, infusion lines, etc.)
- moisture in the sensor
- improperly applied sensor
- incorrect sensor type
- poor pulse quality
- venous pulsations
- anemia or low hemoglobin concentrations
- cardiogreen and other intravascular dyes
- carboxyhemoglobin
- methemoglobin
- dysfunctional hemoglobin
- artificial nails or fingernail polish
- a sensor not at heart level
- residue (e.g., dried blood, dirt, grease, oil) in the light path.
► Operating
Press the ON/STANDBY button. When the unit is first turned on, the Model 7500 performs a brief initialization sequence.
Verify that all LEDs illuminate and the unit beeps three times during the first PHiliphhilipase of the initialization sequence.
To verify that the Model 7500 is functioning properly, it is important to monitor SpO2 and pulse rate readings. Use the following procedure to verify that the sensor is working properly.
1. Ensure that the Model 7500 is on, with the sensor connected.
2. Apply the pulse oximeter sensor (see sensor instructions for use).
3. Verify that a good SpO2 reading is displayed, that a pulse rate value appears, and that the pulse strength bargraPHiliphhilip LED is active.
► Feature
Convenient – Lightweight, compact
Easy-To-Use – Bright LED displays and large display screen offer clear readability
Durable – Rugged design
Powerful – Over 70 hours of memory available for extended monitoring
Versatile – Monitors neonate to adult patients in acute care to homecare environments
Flexible – Use as a stand alone device or interface with other equipment
► Specifications
| Dimensions | 219 mm (8.6”) W x 92 mm (3.6”) H x 142 mm (5.6”) D |
| Weight | 900 grams (2 lbs) with battery |
| Power Requirements | 100–240 VAC 50–60 Hz |
| Memory | 70 hours (assuming continuous operation) |
| Pulse Rate Range | 18–321 BPM |
| Oxygen Saturation Display Range | 0–100% SpO2 |
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