NONIN 7500 Oxygen Saturation Meter Instruction Manual

: June 16, 2024
: NONiN

Table of Contents

Operator Functions
Alarms and Limits
Memory Features
Care and Maintenance
Error Codes
Contact Customer Service or Technical Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

NONIN 7500 Oxygen Saturation Meter Instruction Manual

Thank you for trusting Nonin with your patients’ healthcare needs.
We sincerely appreciate your business. Please read your Operator’s Manual carefully and direct any further questions to a Nonin Technical Service representative. If you would like to order products or check the status of a current order, please contact Customer Service.

7500 Specifications

Additional specifications are available in the IFU/Operator’s Manual that can be located using the QR Code.
Oxygen saturation measured from 0%-100% SpO2
With an accuracy typically ± 2 with a maximum of ± 3.
Pulse rate measured from 18bpm-321bpm. With an accuracy data is typically ± 3 with a maximum of ± 5. Measurement Wavelengths and Output Power:
Red: 660 nanometers @ 0.8 mW maximum average
Infrared: 910 nanometers @ 1.2 mW maximum average

Indications for Use/Intended Use/Intended Purpose
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.

Warnings

Do not use in an explosive atmosphere or in the presence of flammable anesthetics or gases.
Do not use this device in an MRI environment.
This device is not defibrillation proof per IEC 60601-1.
This device is intended only as an adjunct device in patient assessment. It must be used in conjunction with other methods of assessing clinical signs and symptoms.
Oximeter readings of this device may be affected by the use of an electrosurgical unit (ESU).
Inspect the sensor application site at least every 4 hours to ensure correct sensor alignment and skin integrity. Patient sensitivity to sensors and/or double-backed adhesive strips may vary due to medical status or skin condition.
Avoid excessive pressure to the sensor application site as this may cause damage to the skin beneath the sensor.
To avoid patient injury, use only Nonin-branded PureLight® pulse oximeter sensors. These sensors are manufactured to meet the accuracy specifications for Nonin pulse oximeters. Using other manufacturers’ sensors can result in improper pulse oximeter performance.
To prevent improper performance and/or patient injury, verify compatibility of the monitor, sensor(s), and accessories before use.
No modifications to this device are allowed as it may affect device performance.
Do not use a damaged sensor. If the sensor is damaged in any way, discontinue use immediately and replace the sensor.
Verify all device settings, alarm settings and limits in setup mode to ensure that they are set as intended.
A hazard can exist if different presets are used on multiple 7500 monitors in one care area.
Do not use this device in or around water or any other liquid, with or without AC power.
As with all medical equipment, carefully route patient cables and connections to reduce the possibility of entanglement, strangulation, or injury to the patient.
Use this device only with Nonin-specified power supplies.
This device turns off after approximately 30 minutes when in low battery mode.
This device should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the device should be observed carefully to verify normal operation.
The battery pack must be installed at all times while the device is operating—even when operating on AC power. Do NOT use the device without batteries.
The use of accessories, sensors, and cables other than those listed in the Parts and Accessories List may result in increased electromagnetic emission and/or decreased immunity of this device.
To comply with relevant product safety standards, ensure that all alarm volumes are set appropriately and are audible in all situations. Do not cover or otherwise hinder any speaker openings.
Portable RF communications equipment such as cell phones or radios (including peripherals such as antenna cables and external antennas) should be used no closer than 30 cm (12 inches) to any part of the ME system, including cables specified by the manufacturer. Otherwise, degradation of the performance of this equipment could result.

Cautions

When mounting the monitor to a mobile pole, mounting the monitor more than 1.5 meters (5 feet) or mounting more than 2 kilograms (4.4 pounds) of equipment onto the pole may result in tipping, damage to the equipment, or injury.
This equipment complies with IEC 60601-1-2 for electromagnetic compatibility for medical electrical equipment and/or systems. This standard is designed to provide reasonable protection against harmful interference in a typical medical installation. However, because of the proliferation of radio-frequency transmitting equipment and other sources of electrical noise in healthcare and other environments, it is possible that high levels of such interference due to close proximity or strength of a source might disrupt the performance of this device. Medical electricalequipment needs special precautions regarding EMC, and all equipment must be installed and put into service according to the EMC information specified in this manual.
If this device fails to respond as described, discontinue use until the situation is corrected by Nonin Technical Service.
Review all limits to ensure they are appropriate for the patient.
Setting alarm limits to extremes can render the alarm system useless.
Do not simultaneously touch the accessible connector pins and the patient.
The sensor might not work on cold extremities due to reduced circulation. Warm or rub the finger to increase circulation, or reposition the sensor.
Do not gas sterilize or autoclave this device.
Batteries might leak or explode if used or disposed of improperly.
This device has motion tolerant software that minimizes the likelihood of motion artifact being misinterpreted as good pulse quality. In some circumstances, however, the device may still interpret motion as good pulse quality.
This device is a precision instrument and must be repaired by Nonin Technical Service. Field repair of the device is not possible. Do not attempt to open the case or repair the electronics. Opening the case may damage the device and void the warranty.
Do not place liquids on top of this device.
Do not immerse this device or sensors in any liquids.
Do not use caustic or abrasive cleaning agents on the unit or sensors.
Follow local, state and national governing ordinances and recycling instructions regarding disposal or recycling of the device and device components, including batteries. Use only Nonin-approved battery packs.
To prevent potential loss of monitoring, do not use ear clip or reflective sensors on pediatric or neonatal patients.
In compliance with the European Directive on Waste Electrical and Electronic Equipment (WEEE) 2002/96/EC, do not dispose of this product as unsorted municipal waste. This device contains WEEE materials; please contact your distributor regarding take-back or recycling of the device. If you are unsure how to reach your distributor, please call Nonin for your distributor’s contact information.
To prevent potential loss of monitoring or inaccurate data, remove any objects that might hinder pulse detection and measurement (e.g., blood pressure cuffs).
If the entire memory is filled, portions of the oldest record will be overwritten when a new record begins.
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
- Improperly applied sensor
- Carboxyhemoglobin
- Excessive motion
- Incorrect sensor type
- Methemoglobin
- Electrosurgical interference
- Poor pulse quality
- Dysfunctional hemoglobin
- Blood flow restrictors (arterial catheters, blood pressure cuffs, infusion lines, etc.)
- Venous pulsations
- Artificial nails or fingernail polish
- Anemia or low hemoglobin concentrations
- A sensor not at heart level
- Moisture in the sensor
- Cardiogreen and other intravascular dyes
- Residue (e.g., dried blood, dirt, grease, oil) in the light path
When using the monitor in the home, avoid exposing the monitor to lint and dust.
When using the monitor around small children and pets, avoid leaving the monitor unattended. Cables pose a risk of injury, including strangulation.
A functional tester cannot be used to assess the accuracy of a pulse oximeter monitor or sensor.
All parts and accessories connected to the serial port of this device must be certified according to at least IEC Standard EN 60950, IEC 62368-1, or UL 1950 for data-processing equipment.
Operation of this device below the minimum amplitude of 0.3% modulation may cause inaccurate results.
Do not use the power supply if the integrity of the AC cord conductors or the outlet is in doubt.
Failure of a network data coupling (serial cable/connectors) will result in loss of data transfer.
The two-minute alarm silence is automatically engaged at startup.

Adverse Event Statement
Users and/or patients should report adverse events involve their Nonin device to Nonin Medical, Inc. and the competent authority of the EU Member State in which the user and/or patient is established, if applicable.

To set up and use the Nonin Model 7500 pulse oximeter, please follow the simple instructions below.

Operating the Model 7500

Fully charge the battery pack, which takes approximately four hours.
Press the ON/STANDBY button. Make sure all LEDs (except the AC Power Supply LED) light up and the unit beeps three times during the startup sequence. If any LED is not lit, do not use the device and contact Nonin Technical Service for assistance.
Insert the sensor into the Model 7500, then apply it to the patient and take the measurement. For more information on how to use a specific sensor, please refer to that sensor’s Operator’s Manual.
When done using the Model 7500, press and hold the ON/STANDBY button for one to three seconds to turn the device off.

Displays, Indicators, and Controls

Alarm Bar LED	This LED indicates all alarm conditions.
Pulse Quality LED	This amber LED blinks to indicate a poor pulse signal. If

there is a sustained period of poor-quality signals, this LED will display a steady, constant light.
Sensor Alarm LED| This amber LED indicates when a sensor has become disconnected, has failed, or is not compatible with this monitor.
Pulse Strength Bargraph LED| Indicates pulse strength. The height of the Pulse Strength Bargraph LED is proportional to the pulse signal, and the color is determined by pulse strength.
**** Alarm Silence LED| When blinking, this amber LED indicates that the audible alarm is silenced for two minutes. When alarms are active, this LED blinks in time with the alarm bar. If no alarms are active, this LED flashes at the medium priority alarm rate. When lit solid, the Alarm Silence LED indicates that audible alarm volumes are set to less than 45 dB.
AC Power Supply LED| Glows green when connected to external power.
Low Battery LED| This amber LED indicates a low battery charge when blinking, and a critical battery charge when lit solidly.

Operator Functions

Function	Button	Instruction
Turn the Model 7500 on and off	****	To turn on, press the ON/STANDBY

button. To turn off, press and hold the button for at least one second. In Patient Security mode, hold the ON/STANDBY button for three seconds to turn off.
Initiate an event marker| **| Quickly press the ON/STANDBY button while the unit is on.
Temporarily mute the audible alarms|
| Press the Alarm Silence button.
Change pulse tone volume| **| Quickly press the Plus (+) button while the unit is in operating mode. Press again to sequence through volume options for pulse tones.
Set alarm limits or alarm volumes, clear memory or set clock| | Quickly press the Limits button to step through the Limits menu. Use the Plus or Minus buttons to adjust alarm limits or selected volumes as desired.

Refer to the Operator’s Manual for more information about advanced options, which are only recommended for trained operators.

Operating Modes and Defaults
The Model 7500 is shipped with factory defaults active. Refer to the Operator’s Manual for more information about its other modes, including Setup mode, User-Defined Defaults, and Patient Security mode.

Parameter	Factory Default
SpO2 High Alarm Limit	Off
SpO2 Low Alarm Limit	85%
Pulse Rate High Alarm Limit	200 BPM
Pulse Rate Low Alarm Limit	50 BPM
Alarm Volume	High
Oximetry Averaging	Standard/Fast Averaged SpO2 (no)

Clinical Benefits
Nonin pulse oximeters allow for the management of patients’ medical conditions by providing fast, accurate, real-time, noninvasive oxygen measurement in order to meet patients’ medical needs.

Alarms and Limits

Audio and visual alarms alert you about product malfunctions or changing patient conditions.

Alarm	Indicated By	What It Means
High priority alarm	Rapidly-blinking red Alarm Bar LED and a red Pulse
Strength Bargraph LED	Immediate patient attention is required.
Medium priority alarm	Slowly-blinking amber Alarm Bar LED	There may be

problems with the equipment, or a non-life-threatening change in patient condition.
Watchdog alarm| Loud, two-tone,steadily-beeping signals| Hardware of software malfunction.
Informational tone| Single beeps or series of three beeps| Communicating important information, such as startup/initialization.

To silence an alarm for two minutes, press the Alarm Silence button.

Memory Features

The Model 7500 can collect and store 70 hours of continuous SpO2 and pulse rate information. Patient data is retained even when both external and battery power are lost. For information on clearing patient memory or playing back memory data, please refer to the Operator’s Manual.

Care and Maintenance

Clean the Model 7500 separately from the sensors. Please refer to the sensor’s Operator’s Manual for information on how to clean the sensors.

To clean the Model 7500:

Dampen a soft cloth with isopropyl alcohol, mild detergent, or a 10% bleach (5.25% sodium hypochlorite) with water solution. Do not pour or spray any liquids onto the Model 7500, and do not allow any liquid to enter any openings in the device.
Allow the unit to dry thoroughly before reusing it. Field repair of the Model 7500 circuitry is not possible. If the Model 7500 is not functioning properly, please reference the “Troubleshooting” section of the Operator’s Manual.

Error Codes

This device includes error codes that indicate problems with the unit. Error codes are indicated by “Err” in the %SpO2 display, and a capital “E” followed by a 2-digit code in the pulse rate display. To correct error conditions, perform the following steps:

Turn the unit off and then back on again to remove the error code.
If the error persists, disconnect all power, and then reconnect the power and turn the unit back on.

If the error still persists, note the error code and contact Nonin Technical Service.

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