Nonin Model 7500 Operators Manual 2019

Contents Indications for Use ... 1 Warnings ... 1 Cautions ... 2

Guide to Symbols ... 4 Displays, Indicators and Controls... 6 %SpO2 Display... 6 Pulse Rate Display ... 6 Numeric LEDs ... 6 Indicators and Icons ... 7 Model 7500 Front Panel Buttons ... 8

Operating the Model 7500 ... 9 Operating Modes and Defaults... 10 Setup Mode, Viewing Limits and Setting Time ... 10 Factory Defaults ... 10 User-Defined Defaults ... 11 Patient Security Mode ... 11 Viewing and Changing Patient Security Mode... 12

Operator Functions ... 13 Care and Maintenance... 16 Cleaning the Model 7500... 16

Alarms and Limits... 17 High Priority Alarms... 17 Medium Priority Alarms ... 17 Watchdog Alarms ... 17 Informational Tones... 17 Alarm Summary... 18 Patient Alarms... 18 Equipment Alarms... 18

Reviewing and Setting Volume and Alarm Limits ... 19 Reviewing, Setting, or Changing Volumes and Alarm Limits ... 19 Silencing Alarms... 19 Recalling Previous Settings... 20 Error Codes ... 20

Memory and Data Output Features ... 21 Serial Patient Data Output... 21 Analog Output... 22 Analog Output Calibration... 22 Memory Features ... 23

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Contents (Continued) Clearing Patient Memory ...23 Playing Back Memory Data ...23 Connecting the Device into a Medical System ...24

Service, Support, and Warranty...25 Warranty...25

Parts and Accessories...26 Troubleshooting ...27 Technical Information ...29 Manufacturer’s Declaration ...29 Essential Performance...29 Equipment Response Time...31 Testing Summary ...31 SpO2 Accuracy Testing ...32 Pulse Rate Motion Testing...32 Low Perfusion Testing ...32 Principles of Operation...32 Specifications ...33

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Tables Table 1. Symbols ... 4 Table 2. Factory Default Settings... 10 Table 3. Basic Functions... 13 Table 4. Limits Display Sequence... 13 Table 5. Advanced Options... 14 Table 6. Patient Alarms... 18 Table 7. Equipment Alarms... 18 Table 8. Real-time Data Output ... 21 Table 9. Electromagnetic Emissions... 29 Table 10. Electromagnetic Immunity... 30

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Indications for Use

Indications for Use 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 alarm settings and limits during system startup 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.

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Indications for Use

Warnings (Continued) 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 higher 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 electrical equipment 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).

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Indications for Use

Cautions (Continued) 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 - anemia or low hemoglobin concentrations - excessive motion - cardiogreen and other intravascular dyes - electrosurgical interference - carboxyhemoglobin - blood flow restrictors (arterial catheters, blood - methemoglobin pressure cuffs, infusion lines, etc.) - dysfunctional hemoglobin - moisture in the sensor - artificial nails or fingernail polish - improperly applied sensor - a sensor not at heart level - incorrect sensor type - residue (e.g., dried blood, dirt, grease, oil) in the light - poor pulse quality path. - venous pulsations 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.

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Guide to Symbols

Guide to Symbols This table describes the symbols that are found on the Model 7500. Detailed information about functional symbols can be found in “Operating the Model 7500.” Table 1: Symbols Symbol

Description Caution!

!

Consult instructions for use. Follow instructions for use.

SSIFIE LA

D

C

Type BF Applied Part (Patient isolation from electrical shock). C UL US

UL Mark for Canada and the United States with respect to electric shock, fire, and mechanical hazards only in accordance with: • ANSI/AAMI ES60601-1:2005/(R)2012 and CAN/CSA-C22.2 No. 60601-1:14 • ISO 80601-2-61:2011, IEC 60601-1-8: 2006+A1:2012 CE Marking indicating conformance to EC directive No. 93/42/EEC concerning medical devices.

SN

Serial Number Indicates separate collection for electrical and electronic equipment (WEEE).

EC

REP

Authorized Representative in the European Community. Manufacturer

REF

Catalogue Number

QTY

Quantity Date of Manufacture

US

Country of Manufacture Storage/Shipping Temperature Range RoHS Compliant (China)

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Guide to Symbols

Table 1: Symbols (Continued) Symbol

Description Federal law (USA) restricts this device to sale by or on the order of a licensed practitioner. Lot Number

IP33 %SpO2

Protected against spraying water and against access to hazardous parts with a tool, per IEC 60529. %SpO2 Display Pulse Rate Display Numeric LEDs Alarm Bar LED

Pulse Quality LED Sensor Alarm LED Pulse Strength Bargraph LED Alarm Silence LED AC Power Supply LED Low Battery LED ON/STANDBY Button Alarm Silence Button Limits Button Plus Button Minus Button Non-ionizing electromagnetic radiation. Equipment includes RF transmitters; interference may occur in the vicinity of equipment marked with this symbol.

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Displays, Indicators and Controls

Displays, Indicators and Controls This section describes the displays, indicators, and controls for the Model 7500.

On/Standby

Alarm Silence

%SpO2 Display

Sensor Connector

Pulse Rate Display

Plus (+)

Alarm Bar

Minus (-)

Speaker

Limits

Figure 1: Model 7500 Front View

%SpO2 Display The %SpO2 display is located on the left-hand side of the Model 7500 front panel and is identified by the %SpO2 symbol. This display shows blood oxygen saturation, from 0 to 100 percent. The numeric displays blink during SpO2 alarm conditions. See “Specifications” for sensor accuracy information.

Pulse Rate Display The pulse rate display is located on the right-hand side of the Model 7500 front panel and is identified by the symbol. This display shows the pulse rate in beats per minute, from 18 to 321. The numeric displays blink during pulse rate alarm conditions. See “Specifications” for sensor accuracy information. NOTE: LED means “light-emitting diode.”

Numeric LEDs Green numeric LEDs display %SpO2 and pulse rate values. When setting the device, these LEDs also display values for alarm limits, volume, and date and time settings.

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Displays, Indicators and Controls

Indicators and Icons Alarm Bar LED This LED indicates all alarm conditions. For high priority (patient) alarms, the indicator is displayed in red, blinking fast. For medium priority alarms, the indicator is displayed in amber, blinking slowly.

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. WARNING: Do not use a damaged sensor. If the sensor is damaged in any way, discontinue use immediately and replace the sensor.

Pulse Strength Bargraph LED This 8-segment tricolor bargraph indicates pulse strength as determined by the oximeter. The height of the Pulse Strength Bargraph LED is proportional to the pulse signal, and the color is determined by pulse strength: Green = a good pulse strength Amber = a marginal pulse strength Red = a low pulse strength, high priority alarm

Alarm Silence LED This amber LED indicates that the audible alarm is silenced for two minutes when it blinks. 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 This green LED is displayed when an external power supply is providing power to the Model 7500. NOTE: When the external power supply is disconnected, the device automatically switches to battery power without loss of functionality.

Low Battery LED This amber LED indicates a low battery charge when blinking, and a critical battery charge when lit solidly. This LED does not indicate that the Model 7500 is running on battery power. WARNING: This device turns off after approximately 30 minutes when in low battery mode. 7

Displays, Indicators and Controls

Model 7500 Front Panel Buttons ON/STANDBY Button Pressing this button once turns on the Model 7500. Holding this button for at least 1 second shuts down the 7500, putting it into Standby mode. In Standby mode, all device functions are shut off, with the following exceptions: • The AC Power Supply LED is lit whenever the device is plugged in. • Batteries are charged whenever the device is plugged in. Momentarily pressing this button while the unit is on initiates an event marker.

Alarm Silence Button This button toggles alarms between silenced and audible. Pressing the Alarm Silence button silences the alarm for two minutes. Pressing it again (while alarms are silenced) returns the alarms to their audible mode.

!

CAUTION: The two-minute alarm silence is automatically engaged at startup.

Limits Button This button displays the upper and lower limits for alarm indications for SpO2 and heart rate measurements. Pressing the Limits button allows users to access advanced menu options, including adjusting alarm settings, alarm volume, and date and time settings. All adjustments can be made using the Plus (+) and Minus (-) buttons.

Plus (+) and Minus (-) Buttons These buttons adjust values for many Model 7500 functions. The Plus (+) and Minus (-) buttons are used to adjust time, date, volume and upper and lower alarm limits, except in Patient Security mode.

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Operating the Model 7500

Operating the Model 7500 NOTES: • Before using the Model 7500, please review all contraindications, warnings and cautions. • Before using the Model 7500, the battery must be charged for four (4) hours. • When the Model 7500 reaches critical battery, a medium priority alarm will sound. To clear the alarm: charge the battery and turn the device off and back on. 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 phase of the initialization sequence. If any LED is not lit (except the AC Power Supply LED), do not use the Model 7500. Contact Nonin Technical Service for assistance. 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 bargraph LED is active. WARNING: 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. WARNING: As with all medical equipment, carefully route patient cables and connections to reduce the possibility of entanglement, strangulation, or injury to the patient. WARNING: Verify all alarm settings and limits during system startup to ensure that they are set as intended.

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Operating Modes and Defaults

Operating Modes and Defaults The Model 7500 features Setup mode, Factory Defaults, User-Defined Defaults and Patient Security modes. NOTE: Patient Security mode overrides any default settings.

Setup Mode, Viewing Limits and Setting Time In Setup mode, users can adjust alarm limits and volumes, set clock and calendar information and clear the device’s memory. Pressing the Limits button activates Setup mode, and all adjustments can be made using the Plus (+) or Minus (-) buttons. Setup mode is available when the device is operating, or during the startup/initialization process. Time is set by setting each of the last five options in setup mode: year, month, day, hour and minute. Setup mode is not available in Patient Security mode. In Patient Security mode, pressing the Limits button scrolls through the limits on the displays, allowing the operator to view the current limits. Pressing and holding the Plus (+) button also reviews the limits, regardless of operating mode.

Factory Defaults In Factory Defaults, all adjustable parameters are set as indicated in the table below. This is the Model 7500’s default operating setting. The Model 7500 is shipped with factory defaults active. To revert to Factory Default alarm limits from the User-Defined Default alarm limits, simultaneously press the alarm silence and minus (-) buttons. NOTE: User-Defined Default values are lost when Factory Defaults are set active. Table 2: Factory Default Settings Factory Default

Alarm Limit

Adjustment Options

Increment

SpO2 High Alarm Limit

Off

Off, 80-100

1%

SpO2 Low Alarm Limit

85%

Off, 50-95

1%

Pulse Rate High Alarm Limit

200 BPM

Off, 75-275

5 BPM

Pulse Rate Low Alarm Limit

50 BPM

Off, 30-110

5 BPM

Alarm Volume

High

Off, Low, High

N/A

Default alarm and volume settings are automatically selected for every operating session in which the parameters were not recalled or changed within the setup menu.

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Operating Modes and Defaults

User-Defined Defaults In User-Defined Defaults, alarm limit and volume settings must be adjusted. To set the User-Defined Defaults, set the alarm limits, hold the Alarm Silence button and then press the Limits button. This sets the User-Defined Defaults to be the same as the current alarm limits. The Model 7500 recalls User-Defined Default settings at startup whenever this option is selected. Once activated, User-Defined Defaults have priority over Factory Defaults. NOTE: All User-Defined Default settings are retained even when both external and battery power are lost.

Patient Security Mode Alarm limits cannot be changed when the Model 7500 is in Patient Security mode. Patient Security mode prevents accidental changes to critical parameters. The Model 7500 allows users to lock and unlock alarm limits, volume settings, and time settings through the use of Patient Security mode. Operators will notice several operating differences with Patient Security mode: • Default and other previous device settings cannot be recalled. • Clock and calendar data cannot be changed. • SpO2 and pulse rate alarm limits and volumes cannot be changed. Pressing the Limits button allows the operator to review the limits. • Patient memory cannot be cleared. • To put the device into Standby mode, the ON/STANDBY button must be held for at least 3 seconds. • Memory playback not available. Patient Security mode remains active even when the device is turned off and then turned back on. Patient Security mode is retained even when both external and battery power are lost. NOTE: Turn on the device and verify Patient Security mode and settings after initiating Patient Security mode. When the Patient Security mode is enabled, operators cannot change SpO2, or Pulse Rate limits or Alarm Volume-though it is still possible to view those settings. In Patient Security mode, operators cannot view or set the time and date. When the Model 7500 is turned on in Patient Security mode, “SEC on” is displayed in the display area, and three informational tones sound. The upper alarm limits are then displayed, followed by the lower alarm limits. NOTE: Patient memory cannot be cleared when the Model 7500 is in Patient Security mode. In addition, Patient Security mode is not disabled when the unit is turned off.

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Operating Modes and Defaults

Viewing and Changing Patient Security Mode Enter Patient Security Mode – With the device off, press and hold the Alarm Silence button while turning the device on. Exit Patient Security Mode – With the device off, press and hold the Alarm Silence and Limits buttons while turning the device on. When the device is restarted, the Patient Security mode status is displayed on the Numeric LEDs for 1 second: • “SEC on” is displayed when Patient Security mode is enabled. • “SEC 0FF” is displayed when Patient Security mode is disabled.

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Operator Functions

Operator Functions The Model 7500 has several easy-to-use basic functions. Most involve pressing only a single button. Table 3: Basic Functions Function

Button

Instruction

Turn the Model 7500 on and off.

Press the ON/STANDBY button to turn on the Model 7500. Press and hold the button for at least one second to turn off the Model 7500. In Patient Security mode, hold the ON/STANDBY button for three seconds to turn off the Model 7500.

Initiate an event marker.

Momentarily press the ON/STANDBY button while the unit is on.

Mute the audible alarms (2 minutes).

Momentarily press the Alarm Silence button.

Change Pulse tone volume.

Momentarily 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.

Momentarily 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. When pressing Limits button, settings will appear in the order shown in Table 4.

then

or

!

CAUTION: Review all limits to ensure they are appropriate for the patient.

!

CAUTION: Setting alarm limits to extremes can render the alarm system useless. Table 4: Limits Display Sequence Parameter (SpO2) Display

Initial Setting (Pulse Rate Display)

Recall Alarm Settings

“rCL”

“no”

“yES” or “no”

Low %SpO2 Alarm Limit

“02L” 2,3

“85”

“0FF”, 50 to 95 by 1

Pulse High Alarm Limit

“HH” 2

“200”

“0FF”, 75 to 275 by 5

Pulse Low Alarm Limit

“HL” 2

“50”

“0FF”, 30 to 110 by 5

High %SpO2 Alarm Limit

“02H” 2

“0FF”

“0FF”, 80 to 100 by 1

Parameter

Adjustment Range

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Operator Functions

Table 4: Limits Display Sequence (Continued) Parameter (SpO2) Display

Initial Setting (Pulse Rate Display)

Alarm Volume

“adb” 2

“Hi”

“0FF” or “Lo” or “Hi”

Clear Memory

“CLr” 1

“no”

“yES” or “no”

Confirm Memory Clear

“dEL” 1

“no”

“yES” or “no”

Year

“y”

“00”

0 to 99 by 1

Month

“nn”

“00”

0 to 12 by 1

Day

“d”

“00”

1 to 31 by 1

Hour

“h”

“00”

0 to 23 by 1

Minutes

“nn”

“00”

0 to 59 by 1

Parameter

Adjustment Range

Notes: 1. Both of these menu options are part of the memory clear command; “dEL” will be displayed only if “yES” was selected as the setting for the “CLr” parameter. 2. These parameters are restored when Recall Alarm Settings is set to “yES.” these are also the settings displayed by Review Alarm Settings. 3. The low SpO2 Alarm limit saved for recall cannot be lower than the current default for that alarm limit. If it is, the default value will be used when alarm limits are restored.

The Model 7500 features a number of advanced options, which are intentionally more difficult to activate. These functions are recommended only for trained operators and they require multiple button presses to prevent accidental activation. Table 5: Advanced Options Function

Button

Instruction

Recall Previous Alarm Limit Settings

Press the Limits button while the unit is on. “rCL” appears, indicating that previous alarm limit settings may be recalled. To recall the settings, press the Plus button and select “yES.” Press the Limits button again to confirm.

Memory Playback

Press and hold the Plus (+) button while turning on the Model 7500. This functions with the Nonin nVISION® software. Select the Model 7500 option in nVISION software.

+

NOTE: Alarm limits cannot be changed when the Model 7500 is in Patient Security mode. Patient Security mode prevents accidental changes to critical parameters. The Model 7500 allows users to lock and unlock alarm limits, volume settings, and time settings 14

Operator Functions

Table 5: Advanced Options (Continued) Function

Button

Enter Patient Security Mode

Exit Patient Security Mode

Make Current Alarm Values User-defined Defaults

Revert to Factory Defaults

+

Instruction

+

To enter Patient Security mode, press and hold the Alarm Silence button while turning on the device.

+

To exit Patient Security mode, press and hold the Alarm Silence and Limits buttons while turning on the device.

+

To set the User-Defined Defaults to the current alarm settings, hold the Alarm Silence button and then press the Limits button.

+

To revert to the factory defaults, from the User-Defined Defaults alarm limits, hold the alarm Silence button and then press the Minus (-) button.

NOTE: User-defined default values will be lost when factory defaults are made active.

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Care and Maintenance

Care and Maintenance !

CAUTION: Review all limits to ensure they are appropriate for the patient.

The advanced digital circuitry within the pulse oximeter of the Model 7500 requires no calibration or periodic maintenance other than battery replacement by Nonin Technical Service. The device’s expected service life is 5 years. Field repair of the Model 7500 circuitry is not possible. Do not attempt to open the Model 7500 case or repair the electronics. Opening the case may damage the Model 7500 and void the warranty. If the Model 7500 is not functioning properly, see “Troubleshooting.” The OxitestPlus7 by Datrend Systems, Inc. can be used to verify operation of the pulse oximeter.

!

CAUTION: 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. Batteries might leak or explode if used or disposed of improperly.

Cleaning the Model 7500 1. Clean the Model 7500 with a soft cloth dampened 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. 2. Allow the unit to dry thoroughly before reusing it. WARNING: Do not use this device in or around water or any other liquid, with or without AC power.

!

CAUTION: Do not immerse this device in liquid, and do not use caustic or abrasive cleaning agents on the device. Do not gas sterilize or autoclave this device. Do not place liquids on top of this device.

Clean the Model 7500 separately from its associated sensors. For instructions regarding cleaning pulse oximeter sensors, refer to the appropriate pulse oximeter sensor package inserts.

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