NONIN 8500, 8500M User manual

Operator’s Manual

Models 8500 & 8500M

Handheld Pulse Oximeters

English

About the Manual

There are many contraindications, warnings, and cautions throughout this
manual. Read them carefully; they are important to the use of the
product.

The information in this manual has been carefully checked and is believed
to be accurate. In the interest of continued product development,
NONIN reserves the right to make changes and improvements to this
manual and the products it describes at any time, without notice or
obligation.

CAUTION! Federal law (USA) restricts this device to sale by or on the

order of a physician.

CAUTION! Read this manually carefully before using the Model 8500.

Nonin Medical, Inc.

2605 Fernbrook Lane North

Plymouth, MN 55447-4755 USA

[phone]

[phone] (USA and Canada)

Fax [phone]

E-mail: [e-mail]

www.nonin.com

Authorized EC Representative:

MPS, Medical Product Service GmbH

Borngasse 20

D-35619 Braunfels, Germany

References to “NONIN” in this manual shall imply Nonin Medical, Inc.

NONIN, nVISION, Flexi-Form, and FlexiWrap are registered trademarks or trademarks
of Nonin Medical, Inc.

References to “8500” in this manual imply Models 8500 and 8500M.

© 2002 Nonin Medical, Inc.

i

Table of Contents

Precautions for Use ....................................................................1

Unpacking the Model 8500 ........................................................3

Introduction................................................................................4

Indications for Use ..................................................................................... 4

General Description ................................................................................... 4

Basic Operation..........................................................................5

Installing Batteries....................................................................................... 5

Connecting Sensors .................................................................................... 7

Features ....................................................................................10

Controls.................................................................................................... 10

Displays.................................................................................................... 15

Printer/Serial Output............................................................................. 17

Memory Option (8500M Only)............................................................ 18

Specifications............................................................................20

Service....................................................................................... 21

Warranty ...................................................................................22

Accessories ...............................................................................23

Troubleshooting Guide ............................................................24

Guide to Symbols

Attention: See instructions for use.

Type BF Applied Part
(Patient isolation from electric shock)

Canadian Standards Association

Underwriters Laboratories

CE Marking indicating conformance to EC
directive No. 93/42/EEC concerning medical
devices

UL

ii

Precautions for Use

Contraindications

• Do not use the 8500 in an MRI environment.

• Do not use the 8500 in a situation where alarms are required. The

8500 has no alarms.

Warnings

• Explosion Hazard. Do not use the 8500 in an explosive atmosphere.

• The 8500 is intended only as an adjunct in patient assessment. It

must be used in conjunction with other methods of assessing clinical
signs and symptoms.

• Use only NONIN-manufactured pulse oximeter sensors. These

sensors are manufactured to meet the accuracy specifications for
NONIN Pulse Oximeters. Using other manufacturers’ sensors may
cause improper pulse oximeter performance.

• As with all medical devices, carefully route patient cabling to reduce

the possibility of patient entanglement or strangulation.

•

Check the application site frequently to determine the positioning of
the sensor and the circulation and skin sensitivity of the patient.
Each patient’s sensitivity to NONIN sensors might vary, depending
upon medical status or skin condition.

• Discontinue use of adhesive tape strips if the patient exhibits an

allergic reaction to the adhesive material.

• Do not stretch the adhesive tape while applying the sensor. This may

cause inaccurate readings or skin blisters.

• General operation of the 8500 might be affected by the presence of

an electrosurgical unit (ESU).

• Do not use a damaged sensor.

Cautions

• Federal law (USA) restricts this device to sale by or on the order of a

physician.

• Read this manual carefully before using the 8500.

• Before use, carefully read the package insert provided with the

sensor(s).

• The 8500 is intended for spot-checking or monitoring by a health

care professional. Because the 8500 has no audible alarms,
international labeling requirements dictate that it be labeled "Not for
continuous monitoring."

• The 8500 pulse oximeter is not an apnea monitor.

1

• Verify that all visible indicators illuminate during the startup

(initialization) sequence. If any indicator is not lit, do not use the

8500. Contact NONIN Customer Support for repair or replacement.

• The 8500 must be able to measure the pulse properly in order to

obtain an accurate SpO2 measurement. Verify that nothing is
hindering the pulse measurement before relying on the SpO2
measurement.

• The 8500 might not work on all patients. If you are unable to achieve

stable readings, discontinue use.

• The 8500 might misinterpret motion as good pulse quality. Minimize

patient motion as much as possible.

• The 8500 is designed to determine the percentage of arterial oxygen

saturation of functional hemoglobin. Significant levels of
dysfunctional hemoglobin may affect the accuracy of the
measurement.

• Cardiogreen and other intravascular dyes, depending on the

concentration, might affect the accuracy of the SpO2 measurement.

• Ear Clip and Reflectance pulse oximeter sensors are not

recommended for pediatric or neonatal use. The accuracy of these
sensors has not been established for pediatric or neonatal use.

• Do not immerse the 8500 or NONIN sensors in liquid.

• Do not use caustic or abrasive cleaning agents on the 8500 or on the

sensors.

• The 8500 must be repaired only by trained NONIN personnel.

• Do not use different types of batteries or mix fully- and partially-

charged batteries at the same time.; battery leakage might result.

• Do not remove any covers (except the battery cover) when replacing

batteries.

• Follow local ordinances and recycling instructions regarding disposal

or recycling of the device and device components, including batteries.
Batteries might leak or explode if used or disposed of improperly.

• Remove the batteries to avoid the risk of leakage if the 8500 will be

stored for more than one month.

• This equipment complies with International Standard EN 60601-1-

2:1993 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 (for example, cellular phones,
electrical appliances), it is possible that high levels of such
interference due to close proximity or strength of a source might
result in disruption of performance of this device.

2

Unpacking the Model 8500

Confirm that the items listed below are packed with the 8500 Handheld
Pulse Oximeter. The 8500 shipment includes:

• 8500 or 8500M Handheld Pulse Oximeter

• Operator’s Manual for Models 8500 and 8500M Pulse Oximeter

• Six AA batteries

• One sensor

If any item on this list is missing or damaged, contact your distributor.
Contact the carrier immediately if the shipping carton is damaged.

3

Introduction

Indications for Use

The NONIN® 8500 Handheld Pulse Oximeter is indicated for measuring
and displaying functional oxygen saturation of arterial hemoglobin (SpO2)
and pulse rate for adult, pediatric, and neonatal patients in hospital,
ambulatory, home, and EMS (emergency medical service) environments.
The 8500 is intended for spot-checking and/or continuous monitoring
when attended by a trained healthcare professional.

General Description

The Model 8500 is a digital handheld pulse oximeter that displays numeric
values for blood oxygen saturation and pulse rate. It typically operates for
100 hours continuously between alkaline battery replacements and
requires no routine calibration or maintenance other than battery
replacement.

The pulse oximeter determines functional oxygen saturation of arterial
hemoglobin (SpO2) by measuring the absorption of red and infrared light
passing through perfused tissue. Changes in absorption caused by the
pulsation of blood in the vascular bed are used to determine oxygen
saturation and pulse rate.

Oxygen saturation and pulse rate values are displayed by light-emitting
diode (LED) digital displays. On each detected pulse, the pulse quality
LED blinks. Patient pulse quality signals are graded as good, marginal, or
inadequate and are indicated as such by the pulse quality indicator blinking
green, yellow, or red, respectively. This simple method gives the user a
pulse-by-pulse visual indication of waveform signal quality without
requiring complex waveform analyses.

The Model 8500 pulse oximeter may be used with a variety of NONIN
pulse oximeter sensors.

Because the Model 8500 has no patient alarms, SpO
displays must be observed frequently.

A sensor disconnect or malfunction is indicated by a lack of good pulse
quality blinking and/or a dash to the left of the SpO
display. When adequate pulse signals are not received, the SpO
pulse rate numeric values will be replaced by dashes. Low and critically
low battery conditions will be indicated by the low battery LED.

and pulse rate

2

value on the LED

2

and/or

2

4

Basic Operation

Installing Batteries

CAUTION! Do not use different types of batteries at the same time, and

do not mix fully- and partially-charged batteries at the same
time time. Battery leakage might result.

Do not remove any covers (except the battery cover) when

replacing batteries.

Follow local ordinances and instructions regarding disposal

or recycling of the device and components, including
batteries. Batteries may leak or explode if used or disposed of
improperly.

Remove the batteries to avoid the risk of leakage if the Model

8500 will be stored for more than one month.

The 8500 Pulse Oximeter is powered by 6 AA Alkaline cells that will
typically provide 100 hours of continuous operation. The 8500 indicates
when the batteries are low by flashing the digital displays once each second. When the
displays begin flashing, the batteries should be replaced as soon as
possible. Replace the batteries by removing the battery door on the
bottom of the 8500. Be sure to follow the polarity markings on the rear
label of the pulse oximeter when installing new batteries. Refer to Figure
I for an illustration of battery replacement.

Rechargeable Nickel Cadmium batteries may be used in the 8500 if
desired. Since NiCad batteries have less than half the capacity of alkaline
batteries, the batteries will have to be recharged more often than every
100 hours.

NOTE:

NOTE:

NOTE:

Reducing the display brightness can extend battery life
up to 100%.

Replacing batteries erases the memory and clock
settings of the 8500.

Batteries should be removed if the 8500 is going to be
stored for more than 30 days. Batteries may leak if left in
the device for a long period of time.

5

Figure I: Replacing Batteries in the 8500

6

Connecting Sensors

Connect the sensor to its 9-pin mating jack on the top of the 8500 as
shown in Figure II. If additional cable length is necessary, connect the
Model 8500I Patient Cable between the sensor and the 8500 Pulse
Oximeter. Position the appropriate sensor on the patient.

Figure II: Connecting Sensors to the 8500

Turning on the Pulse Oximeter

Turn on the Model 8500 by pressing the "" button on the front of the
pulse oximeter. Refer to Figure III.

When the 8500 is powered on, the SpO
the following sequence before displaying valid data values:

• "

"

• time saved in memory in hours and minutes

• software revision number

• " - - "

and ♥ displays will cycle through

2

7

Figure III: Front View of the 8500

Figure IV: Rear View of the 8500

8

Verifying Operation

CAUTION! The 8500 must be able to measure the pulse properly to

obtain accurate SpO2 measurement. Verify that nothing is
hindering the pulse measurement before relying on the SpO
measurement.

2

Verify that the sensor is properly positioned, and ensure that the system is
sensing adequate perfusion by observing that the

(perfusion)
indicator is blinking green, and the blinking is correlated to the pulse rate
for 10 seconds. Should the perfusion light be red or yellow or flashing
erratically, reposition the sensor or try a different sensor.

Cleaning the Pulse Oximeter

CAUTION! Do not immerse the 8500 in liquid, and do not use caustic or

abrasive cleaning agents.

The 8500 Pulse Oximeter may be cleaned with a mild detergent and a soft
cloth or with an isopropyl alcohol wipe. Allow enough time for the 8500
to dry thoroughly before reusing.

9

Features

Controls

All functions of the 8500 are controlled by switches found on the front of
the unit. Refer to Figure III for an illustration of these switches.

Power

Pressing the ON switch ("") causes power to be applied to all internal
circuitry. Pressing the OFF switch ("∅") causes power to be removed

from the displays and puts the pulse oximetry circuitry into a low power
standby mode.

In order to conserve battery life, the 8500 automatically powers off after
10 minutes of inactivity. Inactivity is indicated by dashes on the displays
and is caused by:

• no sensor connected to the pulse oximeter

• patient pulse too low

• sensor not attached to a patient

Each time a reading is displayed, the 10 minute timer is restarted.

The "" switch has additional clock and printer mode setting functions
when used in conjunction with the "×" switch.

Display Brightness

The arrow switch ("×") causes the brightness of the digital displays to
change. When powered up, the digital display defaults to the maximum
brightness. Pressing the "×" will advance the brightness to the lowest
setting, and each subsequent press will advance the brightness through 8
different settings. The function is circular, which means it will cycle
through the entire brightness range and then start at the beginning again.
Lower brightness may be used to preserve battery life; higher brightness
may be used to view the displays from a distance.

NOTE:

The "×" switch has additional clock mode setting functions when used
with the "" switch.

Reducing the LED display brightness can extend battery
life up to 100%.

10

Setup Mode

Setup mode is used to control the internal time-of-day clock and the
external real-time printer (purchased separately). The setup mode is
initiated by holding the "×" switch when the unit is turned on by pressing

the "" switch. In setup mode, the "" switch and the "×" switch are
used to make the selections.

Advance to the next sequential mode by pressing the "" switch. Each
time the "×" switch is pressed, the number on the ♥ display will

increment. It starts with the current value stored in memory for the
parameter designated in the SpO

in the ♥ display, pressing the "" switch will advance the SpO
the next sequential parameter as listed in Table I. This process is
continued until all parameters are set. The settings can be checked easily,
since the first value displayed for each parameter represents the current
setting. When the setting sequence has been completed, the 8500 exits
setup mode and begins normal operation.

Appears in Range of Values
Sequence

SpO

display. When the correct value appears

2

2

display to

2 Display From To

Printer
Year

Month
Day
Hours
Minutes

Table I: Printer, Clock, and Calendar Mode Parameters

00 15
00 99

00 12
01 31
00 23
00 59

Printer Settings

NOTE:

" " will appear in the SpO2 display, indicating print setup mode. There
are 16 options for the printer mode: 00 through 15.

The modes determine how often and in which format data is written to
the printer. Refer to Figure V for a flowchart of setting the printer mode.
When the printer setting sequence is completed, the 8500 continues to the
calendar settings.

The 8500P prints real-time data only. Data stored in the
8500M can not be downloaded to the 8500P.

11

SpO

2

Display

Display

Setup

Mode

Default
Setting

Press

Press

Increment

Press

Proceed to

calendar setup

Press

printer

mode

Figure V: Flow Chart for Setting Printer Mode

Printer

Mode

Seconds

per data

point

Minimum

2

SpO

printed?*

Touch

print

capability?**

00 10 No Yes
01 30 No Yes
02 120 No Yes
03 10 Yes Yes
04 30 Yes Yes
05 120 Yes Yes
15 --- No Yes

For modes where the minimum SpO

*

written for each data output. The first line contains the minimum value for SpO
since the last printout, and the second line contains the current data values.

The touch print mode enables the user to print out data at any time. This is

**

activated by pressing the "" switch.

data is written, there are two lines of data

2

Table II: 8500P Printer Modes

2

12

Calendar Settings

After the printer setting has been determined in the setup mode, " " will
appear in the SpO
The year may be set to "00" through "99". After selecting the year, the

display, indicating calendar setup mode for the year.

2

display will show "

," indicating the setup mode for the month. The
month may be set to "00" through "12". After selecting the month, the
display will show "

," indicating the setup mode for the day of the
month. The day may be set to "01" through "31". Refer to Figure VI for
a flowchart of setting the calendar. When the calendar setting sequence is
completed, the 8500 continues to the clock settings.

NOTE:

Setting the month to "00" disables the clock function and
helps conserve battery life.

SpO

2

Display

Setup

Mode

Default
Setting

Press

Display

Press

Press

Press

Increment

year

Press

Press

Press

Increment

month

Press

Press

Increment

day

Press

Proceed to

clock setup

Press

Press

Figure VI: Flow Chart for Setting Calendar

13

Clock Settings

After the calendar settings have been determined in the setup mode, " "
will appear in the SpO
The hour may be set to "00" through "23". After selecting the hour, the

display, indicating clock setup mode for the hour.

2

display will show "

," indicating the setup mode for the minutes. The
minutes may be set to "00" through "59". After selecting the minutes, the
display will return to normal operation. Refer to Figure VII for a
flowchart of setting the clock.

SpO

2

Display

Setup

Mode

Default
Setting

Press

Display

Press

Press

Press

Press

Increment

hour

Press

Increment

minute

Press

Proceed to

normal operation

Press

Figure VII: Flow Chart for Setting Clock

Printer modes determine how often and in which format data is written to
the printer. For modes where the minimum SpO

data is written, two

2

lines of data are written for each data output. The first line contains the
minimum value for SpO

since the last printout, and the second line

2

contains the current data values. Touch print mode enables users to print
data at any time by pressing the "" switch.

14

Displays

SpO2 Display

The left digital display is a 3-digit light emitting diode (LED) digital
display that indicates oxygen saturation percentage. Refer to Figure III.

♥ (Pulse Rate) Display

The right digital display is a 3-digit LED digital display that indicates pulse
rate in pulses per minute. Refer to Figure III.

(Perfusion) Indicator

The perfusion indicator (identified by the waveform symbol ) will
flash once for each pulse while measuring oxygen saturation. The
perfusion indicator changes color to indicate changes in the pulse
waveform signal that may affect SpO

The perfusion indicator may blink one of three colors: green, yellow, or
red. These colors are similar to the colors of a stoplight such that:

Red indicates the pulse amplitude is too small. During red perfusion,

and pulse rate values are not updated. After ten seconds, values are

SpO

2

replaced with dashes, indicating SpO

Yellow indicates the pulse waveform amplitude is marginal or the pulse
oximeter has detected artifact. Although SpO
corrective measures should be considered to improve sensor placement,
change sensor type, or reduce patient movement.

Green indicates a good pulse waveform signal and accurate SpO

CAUTION! The 8500 might interpret motion as good perfusion.

data.

2

measurement is not possible.

2

data is acceptable,

2

2

data.

15

Flashing Display

The numerical displays will flash once each second if the 8500 determines
that a battery low condition exists. Replace all six batteries immediately.

NOTE:

Inaccurate SpO2 and/or pulse rate measurement might
result if the 8500 is operated in a low battery condition.

Dash in SpO2 Display

If the 8500 determines that a sensor fault exists (sensor disconnect, sensor
failure, or sensor dislodgment), a dash (-) appears in the left-most digit of
the SpO
sensor fault exists. If the sensor fault is not corrected, dashes will be
displayed 10 seconds after the minus sign appears.

display. The readings displayed will remain unchanged while the

2

16

Printer/Serial Output

Both the 8500 and 8500M Hand Held Pulse Oximeters provide output
capability to a custom printer via the 9-pin Sub-D connector. This
connector serves as a sensor input connector as well as a printer
interconnect device. The 9-pin Sub-D connector pin assignments are
listed in Table III.

Pin Number Assignment

1 Battery Voltage
2 Infrared Anode, Red Cathode
3 Infrared Cathode, Red Anode
4 Serial Data, TTL Levels
5 Detector Anode
6 Logic Level
7 Cable Shield
8 Coaxial Shield
9 Detector Cathode, +5 V

Table III: Printer/Sensor Interface Assignments

The information from the 8500 in the real-time mode is sent in an ASCII
serial format at 9600 baud with 9 data bits, 1 start bit, and 1 stop bit. The
data is output at a rate of once per second.

NOTE:

The data printed by the 8500P printer is in the following format:

HH:MM:SS SPO2=XXX HR=YYY

where "HH" represents the hour, "MM" represents the minutes, "SS"
represents the seconds, "XXX" represents the SpO
represents the heart rate. SpO
there is no data available for the data reading.

The 9th data bit is used for parity in memory playback
mode. In real-time mode, it is always set to the mark
condition. Therefore the real-time data may be read as 8
data bits, no parity.

value, and "YYY"

2

and heart rate will be displayed as "---" if

2

17

Memory Option (8500M Only)

The memory option is identified by the "M" in the model number (i.e.
8500M as opposed to the 8500). This model number is located just above
the serial number on the back of the unit. The 8500M Pulse Oximeter
can collect and store up to eighteen hours of SpO
information.

The memory in the 8500M functions as an “endless loop.” When memory
fills up, the unit begins overwriting the oldest data with the newest.

Each time the 8500M is powered up, the current time/date information (if
the clock is set properly) is stored in memory to allow quick
differentiation of recording sessions. Patient SpO
sampled and stored every four seconds. The stored resolution of the
oxygen saturation is in 1% increments in the range of 0 to 100 %. The
stored pulse rate ranges from 18 to 300 BPM. The stored values have a
resolution of 1 BPM from 18 to 200 and a resolution of 2 BPM from 201
to 300.

During the printing of the data, the last data recorded is the first data
printed. For example, the last four minutes of data recorded would be the
first four minutes of printout.

and pulse rate

2

and pulse rate are

2

Recording Sessions

Each time the 8500M is turned on (except while setting the clock) data is
automatically collected.

NOTE:

Only recording sessions greater than one minute in length
are kept in memory for later printing.

18

Memory Output Mode

To output the data stored in the memory of the 8500M, start with the unit
OFF and then:

1) Hold the "×" switch while pressing the "" switch;

2) Release the "×" and "" switches when "

in the SpO2 and pulse rate LEDs;

3) Observe "

XX" will be displayed in the SpO2 and ♥ LEDs;

4) Data is automatically transferred from the memory in
approximately 8 to 10 minutes.

Data is transferred at a rate of 20 minutes of collected data per second.
An 18 hour recording session (the maximum memory saved) is transferred
in approximately 1 minute. After all the data is transferred, the 8500M
should be shut off before collecting new patient data. Patient information
is held in memory as long as the batteries are good, so if the memory has
to be cleared, remove the battery door for 60 seconds or longer.
Outputting the memory does not clear any data from the memory.

NOTE:

The memory is cleared each time the batteries are changed.

" is displayed

19

Specifications

1. Oxygen Saturation Range (SpO2)

2. Pulse Rate Range

3. Displays
Patient Indicator
Digital Displays

4. Measurement Wavelengths
Red
Infrared

5. Accuracy
SpO2

(± 1 Standard Deviation)

♦

Pulse Rate

6. Temperature
Operating
Non-operating

7. Humidity
Operating
Non-operating

8. Power Requirements

9. Patient Isolation

10. Leakage Current

11. Dimensions

12. Weight

♦

Standard Deviation is a statistical measure: up to 32% of the readings may fall outside these limits.

0 to 100%

18 to 300 Pulses Per Minute

Perfusion LED
3-digit 7-segment LEDs

660 nanometers
910 nanometers

•

70 - 95% ± 3 digits for neonates using
infant or neonatal sensors

• 70 - 100% ± 2 digits for adults using the

Finger Clip sensor

• 70 - 100% ± 3 digits for adults using Flex

or Reflectance sensors

• 70 - 100% ± 4 digits using Ear Clip

sensor

• Below 70% is not specified for all sensors

±

3% ± 1 digit

-20 to +50 °C

-30 to +50 °C

10 to 90% non-condensing
10 to 95% non-condensing

6 AA alkaline batteries
100 hours typical operation
(maximum display brightness)
200 hours typical operation
(minimum display brightness)

> 12 MΩ

Not applicable

3" wide x 6" high x 1" deep
8 cm x 15 cm x 2 cm

10 oz. (280 g) with batteries

20

Service

CAUTION! The 8500 Handheld Pulse Oximeters must be repaired by

trained NONIN personnel only. Any evidence of opening the
system, field service by non-NONIN personnel, tampering,
or any kind of system misuse or abuse shall void the warranty.

The solid state circuitry within the 8500 requires no periodic maintenance
or calibration other than battery replacement.

NONIN does not recommend field repair of the 8500 Handheld Pulse Oximeter.
The circuit board in the 8500 series is a multi-layer board using traces

0.01" wide. Due to the very small trace size, extreme care must be used
when replacing components to prevent permanent non-repairable damage
to the circuit board. Most components are surface-mounted and require
special hot air jet soldering and desoldering equipment. After any repairs
are made, the pulse oximeter must be tested to ensure correct operation.

NOTE:

All non-warranty work shall be done according to NONIN standard rates
and charges in effect at the time of delivery to NONIN. All repairs
include a complete retest of the pulse oximeter using factory test fixtures.

All repair work on the 8500 should be done by trained NONIN
personnel. For NONIN Customer Support, contact:

NONIN Medical, Inc.
2605 Fernbrook Lane North
Plymouth, Minnesota 55447 - 4755 USA

[phone]
[phone] (USA and Canada Only)
FAX: [phone]

21

Warranty

NONIN MEDICAL, INCORPORATED, (NONIN) warrants to the
purchaser, for a period of three years from the date of delivery, each
system exclusive of sensors, cables, and batteries. NONIN shall repair all
systems found to be defective in accordance with this warranty, free of
charge, for which NONIN has been notified by the purchaser by serial
number that there is a defect, provided said notification occurs within the
applicable warranty period. This warranty shall be the sole and exclusive
remedy by the purchaser hereunder for any systems or accessories
delivered to the purchaser which are found to be defective in any manner
whether such remedies be in contract, tort, or by law.

This warranty excludes cost of delivery to and from NONIN. All
repaired units shall be received by the purchaser at NONIN. For any
system or accessory sent to NONIN for warranty repair which is found to
be within specification, the purchaser agrees to pay $100.00.

These systems are sensitive and must be repaired by trained NONIN
personnel only. Accordingly, any evidence of opening the system, field
service by non-NONIN personnel, tampering, or any kind of system
misuse or abuse shall void the warranty.

All non-warranty work shall be done according to NONIN standard rates
and charges in effect at the time of delivery to NONIN.

DISCLAIMER/EXCLUSIVITY OF WARRANTY

THE EXPRESS WARRANTIES SET FORTH IN THIS MANUAL
ARE EXCLUSIVE, AND NO OTHER WARRANTIES OF ANY
KIND, WHETHER STATUTORY, WRITTEN, ORAL, OR IMPLIED,
INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR
PURPOSE OR MERCHANTABILITY, SHALL APPLY.

22

Accessories

The following NONIN accessories function with the 8500 Handheld
Pulse Oximeter:

Model Description

8000K2 Adult Finger Clip Sensor
8000AA-1 Adult Articulated Finger Clip Sensor (1 meter)
8000AA-3 Adult Articulated Finger Clip Sensor (3 meters)
8000AP Pediatric Finger Clip Sensor
8000J Adult Flex Sensor
8008J Infant Flex Sensor
8001J Neonatal Flex Sensor
8000Q Ear Clip Sensor
8000R Reflectance Sensor

7000A Adult Finger Flexi-Form
7000P Pediatric Finger Flexi-Form
7000I Infant Toe Flexi-Form
7000N Neonatal Foot Flexi-Form
7000D Flexi-Form

8000H Reflectance Sensor Holder System
8000S Patient Simulator
8500CC-B Carrying Case – Black
8500CC-Y Carrying Case – Yellow
8500I Patient Extension Cable (1 meter)
8500MB Mounting Bracket (Wall or Pole Mount System)
8500MC Memory Transfer Cable (for use with PC)
8500RTC Real-Time Transfer Cable (for use with PC)
8500RB Rubber Bumper
8500YC Real-Time Cable
NVISION nVISION software for Microsoft Windows 95/98/

For more information about NONIN parts and accessories, contact your
distributor, or contact NONIN at [phone] (USA and Canada) or
[phone].

Pulse Oximeter Reusable Sensors

Pulse Oximeter Disposable Sensors

®

II Sensor, 10 per box

®

II Sensor, 10 per box

®

II Sensor, 10 per box

®

®

Sensor Assortment Pack, 10 per box

II Sensor, 10 per box

Accessories

2000/NT 4.0 operating systems

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Troubleshooting Guide

Symptom Possible Cause Possible Solution

8500 will not power up Batteries are depleted Replace all six batteries.
Incorrect battery

installation

Battery door is missing

metal contact

Numeric displays are

Battery voltage is low Replace all six batteries of the
blinking at once per
second

Incorrect battery

installation
Minus sign appears in

SpO2 display

Sensor fault exists. Sensor

may have become

dislodged from 8500 or

from the patient
Segments of SpO2 or

♥

display are missing

Displayed pulse rate
does not correlate to
pulse rate displayed on
ECG monitor

Defective LED displays Displayed values may not be

Excessive motion at

sensor site may be

prohibiting the 8500 from

acquiring a consistent

pulse signal
Patient may have an

arrhythmia resulting in

some heart beats that do

not yield a perfusion signal

at sensor sight

Non-NONIN sensor is

being used.
ECG monitor may not be

functioning properly

Erratic ♥ display
and/or yellow
perfusion LED during
use of electrosurgical
equipment (ESU)

Perfusion is blinking
yellow with each pulse

ESU may be interfering

with oximeter

performance

Perfusion signal at sensor

site is marginal

Verify battery sequence.

Replace the battery door

8500

Verify battery sequence.

Verify sensor is connected to
the 8500 and the patient
correctly; Try a new sensor if
condition persists

reliable; discontinue use of 8500

Eliminate or reduce cause of
motion artifact or

reposition
sensor to new sensor site where
motion is not present

Examine the patient: Condition
may persist even though both
monitors are functioning
properly if patient's arrhythmia
persists

Replace sensor with a NONIN
sensor

Examine the patient: Replace ECG
monitor or refer to operator's
manual for ECG monitor

Examine the patient: move
oximeter, cables, and sensor as
far away from ESU as possible
or refer to the ESU operator's
manual

Examine the patient: reposition
sensor or select alternate sensor
site

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Symptom Possible Cause Possible Solution

Unable to obtain green
perfusion

Sensor site poorly perfused
Sensor not correctly

Sensor attached too tightly

Circulation reduced due to

Excessive ambient light Reduce ambient light
Excessive patient motion Reduce patient motion
Sensor applied to a

Interference from:

Low patient pulse strength Reposition sensor on patient

positioned

Reapply sensor, select alternate
or tape or other items are
restricting perfusion at
sensor site

excess pressure between
the sensor and a hard
surface

polished fingernail

•

arterial catheter

•

blood pressure

cuff

sensor site, or remove restrictive

material from sensor site

Allow sensor and finger to rest

comfortably on surface

Remove fingernail polish

Reduce or eliminate interference

• electrosurgical

procedure

•

infusion line

Perfusion LED is
blinking red and SpO2

and ♥ displays show
dashes Excessive motion at

Printer not printing out
after changing Prn
mode

If any of these solutions do not correct the problem, please contact NONIN Customer
Support at [phone] (USA and Canada) or [phone].

Inadequate perfusion
signal at sensor site

sensor site may be
prohibiting 8500 from
acquiring a consistent
pulse signal

Printer mode did not get
updated internally

Examine the patient: reposition

sensor or select alternate sensor

site

Eliminate or reduce cause of

motion artifact or reposition

sensor to sensor site where

motion is not present

Reset pulse oximeter by turning

it off and then on

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