Nellcor OxiMax N-650 User manual

Ops.ai 1/24/06 9:31:41 AMOps.ai 1/24/06 9:31:41 AM

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This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 Canada.
Nellcor Puritan Bennett Inc. is an affiliate of Tyco Healthcare. Nellcor, Oxiband, Durasensor,

OxiCliq, OxiBand, Dura-Y, MAX-FAST, SatSeconds, PediCheck, Oxismart and O

XIMAX are

trademarks of Nellcor Puritan Bennett Inc.
To obtain information about a warranty, if any, contact Nellcor’s Technical Services Department,

or your local representative.
Purchase of this instrument confers no express or implied license under any Nellcor Puritan

Bennett patent to use the instrument with any sensor that is not manufactured or licensed by
Nellcor Puritan Bennett.

Covered by one or more of the following US patents and foreign equivalents: 4,802,486;
4,869,254; 4,928,692; 4,934,372; 4,960,126; 5,078,136; 5,485,847; 5,743,263; 5,865,736; 6,035,223;
6,298,252; 6,463,310; 6,591,123; 6,675,031; 6,708,049; 6,801,797; Re 35,122.

Contents

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i

Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Warnings ................................................................................................................1

Cautions .................................................................................................................1

Notes ......................................................................................................................2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Intended Use for the N-560 ....................................................................................3

How to Use this Manual .........................................................................................3

Description of Controls, Indicators, and Symbols . . . . . . . . . . . . . . . . . . 5

Identification of Front Panel Buttons and Symbols ................................................5

Identification of Rear Panel Components ...............................................................6

N-560 Symbols .......................................................................................................6

Description of Controls ...........................................................................................7

Description of Displays and Indicators ...................................................................9

Interference Explained ....................................................................................11

Description of Audible Indicators ..........................................................................13

Setting up the N-560 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

List of Components ..............................................................................................16

Connecting the N-560 to AC Power .....................................................................17

Connecting a Sensor to the N-560 .......................................................................17

Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Operating the N-560 on Battery Power ................................................................19

Low Battery Indicator ...........................................................................................20

Using the N-560 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Turning on the N-560 ...........................................................................................21

Discussion .......................................................................................................21

Procedure ........................................................................................................22

Sensor Attached ..............................................................................................24

N-560 Operator’s Manual i

Contents

No Sensor Attached ........................................................................................ 26

Sensor Message .................................................................................................. 26

Setting the Pulse Beep Volume ........................................................................... 27

Setting the Alarm Volume .................................................................................... 28

Setting Alarm Silence Duration ............................................................................ 28

Discussion ....................................................................................................... 28

Procedure .......................................................................................................29

Disabling Audible Alarms ..................................................................................... 30

Discussion ....................................................................................................... 30

Procedure .......................................................................................................31

Verify Patient Settings ......................................................................................... 32

Alarm Limits Changed Indicator .......................................................................... 34

Setting Alarm Limits ............................................................................................. 34

Discussion ....................................................................................................... 34

Procedure .......................................................................................................34

Setting SatSeconds Duration .............................................................................. 37

Discussion ....................................................................................................... 37

Procedure .......................................................................................................37

Setting the Data Port Baud Rate ......................................................................... 37

Discussion ....................................................................................................... 37

Procedure .......................................................................................................38

Setting the Data Port Protocol ............................................................................. 39

Clearing Trend Information .................................................................................. 40

N-560 Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Trend Data Operation .......................................................................................... 43

Trend Data ........................................................................................................... 44

#1: Trend Print ................................................................................................ 44

#2: Trend Clear ............................................................................................... 44

#3: Not Used ................................................................................................... 44

#4: Baud Rate ................................................................................................. 44

#5: Data Port Printout ..................................................................................... 45

Option 1 ................................................................................................... 45

Option 2 ................................................................................................... 45

Using the Data Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Overview ..............................................................................................................47

ii

Contents

Connecting to the Data Port .................................................................................47

Data Port Pinouts .................................................................................................48

Data Port Setup ....................................................................................................49

Discussion .......................................................................................................49

Procedure ........................................................................................................49

Nurse Call Interface .............................................................................................53

Setting Nurse Call RS-232 Polarity .................................................................54

Setting Nurse Call Relays Normally Open/Closed ..........................................54

Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Printing N-560 Real-Time Data ............................................................................55

Trend Data Printout ..............................................................................................57

Column Headings ............................................................................................58

Data Source ....................................................................................................58

Device/Software Revision Level ......................................................................58

Alarm Limits .....................................................................................................58

N-560 Mode .....................................................................................................59

Data Column Headings ...................................................................................59

Time ................................................................................................................59

Patient Data .....................................................................................................60

Operating Status .............................................................................................60

Sensors and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Selecting a Sensor ...............................................................................................63

Biocompatibility Testing .......................................................................................66

Optional Accessories ...........................................................................................66

Visual Alarm Indicator .....................................................................................66

Pole Mount Bracket .........................................................................................67

Performance Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Performance Verification ......................................................................................69

N-560 Performance Considerations .....................................................................69

Dysfunctional Hemoglobins .............................................................................69

Anemia ............................................................................................................70

Saturation ........................................................................................................70

Pulse rates ......................................................................................................70

Sensor Performance Considerations ...................................................................70

N-560 Operator’ Manual iii

Contents

Operator’s Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Error Codes ......................................................................................................... 75

Corrective Action ................................................................................................. 76

EMI (Electro-magnetic Interference) .................................................................... 79

Obtaining Technical Assistance .......................................................................... 80

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Returning the N-560 ............................................................................................ 83

Service ................................................................................................................. 83

Periodic Safety Checks ....................................................................................... 83

Cleaning .............................................................................................................. 84

Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Description of Alarms .......................................................................................... 85

Factory Defaults .................................................................................................. 86

SatSeconds Display ............................................................................................ 87

Describing SatSeconds ....................................................................................... 87

SatSeconds “Safety Net” ..................................................................................... 89

Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Oximetry Overview .............................................................................................. 91

Automatic Calibration .......................................................................................... 92

Functional versus Fractional Saturation .............................................................. 93

Measured versus Calculated Saturation .............................................................. 93

Functional Testers and Patient Simulators .......................................................... 94

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

Performance ........................................................................................................ 95

Electrical .............................................................................................................. 99

Environmental Conditions .................................................................................. 100

Physical Characteristics .................................................................................... 101

Compliance ........................................................................................................ 102

Manufacturer’s Declaration ................................................................................ 103

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

iv

Figures

Figure 1: Front Panel Buttons and Symbols ......................................................... 5

Figure 2: Rear Panel Symbols .............................................................................. 6

Figure 3: Data Port Pin Layout ............................................................................ 49

Figure 4: Real-Time Data Printout ...................................................................... 56

Figure 5: Trend Data Printout ............................................................................. 57

Figure 6: Alarm Response with SatSeconds ...................................................... 89

Figure 7: Oxyhemoglobin Dissociation Curve ..................................................... 93

v

Tables

Table 1: Data Port Pinouts ...................................................................................48

Table 2: Nellcor Oximetry Sensor Models and Patient Weights ...........................64

Table 3: Operator’s Menu .....................................................................................73

Table 4: Error Codes ............................................................................................76

Table 5: Factory Default Settings .........................................................................86

Table 6: Tone Definition .......................................................................................96

Table 7: Cable Compliance ................................................................................104

Table 8: Electromagnetic Emissions ..................................................................105

Table 9: Electromagnetic Immunity ....................................................................106

Table 10: Recommended Separation Distances Between Portable and

Mobile RF Communication Equipment and the N-560 .........................109

vi

Safety Information

Warnings

Warnings are identified by the WARNING symbol shown above.

Warnings alert the user to potential serious outcomes (death, injury, or
adverse events) to the patient or user.

WARNING: Explosion hazard. Do not use the N-560™ pulse
oximeter in the presence of flammable anesthetics or gases.

WARNING: Pulse oximetry readings and pulse signals can be
affected by certain ambient environmental conditions, sensor
application errors, and certain patient conditions. See the
appropriate sections of the manual for specific safety information.

WARNING: Ensure that the speaker is clear of any obstruction.
Failure to do so could result in an inaudible alarm tone.

Cautions

Cautions are identified by the CAUTION symbol shown above.

Cautions alert the user to exercise care necessary for the safe and effective
use of the N-560.

N-560 Operator’s Manual 1

Safety Information

CAUTION: When connecting the N-560 to any instrument, verify
proper operation before clinical use. Both the N-560 and the
instrument connected to it must be connected to a grounded outlet.
Accessory equipment connected to the N-560's data interface must be
certified according to IEC Standard 60950 for data-processing
equipment or IEC Standard 60601-1 for electromedical equipment.
All combinations of equipment must be in compliance with IEC
Standard 60601-1-1 systems requirements. Anyone who connects
additional equipment to the signal input port or signal output port
(N-560 data port connector) configures a medical system and is
therefore responsible for ensuring that the system complies with the
requirements of system standard IEC Standard 60601-1-1 and the
electromagnetic compatibility system standard IEC Standard
60601-1-2. The N-560 accuracy may degrade if it is connected to
secondary I/O devices when the instrument is not connected to earth
reference.

CAUTION: Do not lift the N-560 by the sensor cable or power cord
because the cable or cord could disconnect from the N-560, causing
damage to the N-560 or injuring the patient.

Notes

2

CAUTION: Federal law (U.S.A.) restricts this device to sale by or on
the order of a physician.

Notes are identified by the Note symbol shown above.

Notes provide additional useful information.

Note: Sensor LED light emissions fall within Class 1 level, according to
IEC 60825-1:2001. No special safety precautions are required.

Introduction

WARNING: The N-560 is intended only as an adjunct in patient
assessment. It must be used in conjunction with clinical signs and
symptoms. Do not make any clinical judgments based on the
oximeter's measurements only.

Intended Use for the N-560

The N-560 Pulse Oximeter is indicated for the continuous noninvasive
monitoring of functional oxygen saturation of arterial hemoglobin (SpO
and pulse rate. The N-560 is intended for use with neonatal, pediatric, and
adult patients who are well or poorly perfused, in hospitals, hospital-type
facilities, intra-hospital transport, and home environments. For
prescription use only.

Introduction

2)

Note: Hospital use typically covers such areas as general care floors,

operating rooms, special procedure areas, intensive and critical

care areas, within the hospital plus hospital-type facilities.

Hospital-type facilities include physician office-based facilities,

sleep labs, skilled nursing facilities, surgicenters, and sub-acute

centers.

Intra-hospital transport includes transport of a patient within the

hospital or hospital-type facility.

Use with any particular patient requires the selection of an appropriate
oxygen transducer (sensor) as described in this Operator's Manual.

How to Use this Manual

All users should read this manual thoroughly. More experienced users of
the N-560 can directly go to topics for the information they require. This
manual is available on the internet at:

http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/ProductManuals.html

N-560 Operator’s Manual 3

Introduction

4

Description of Controls, Indicators, and Symbols

Description of Controls, Indicators, and
Symbols

Identification of Front Panel Buttons and Symbols

Figure 1: Front Panel Buttons and Symbols

1. SpO2 Sensor Port

2. Power On/Off Button 13. SpO2 Alarm Limit Button

3. %SpO2 Display 14. Interference Indicator

4. Pulse Amplitude Indicator 15. Sensor Off Indicator

5. Pulse Rate Display 16. Sensor Message Indicator

6. Alarm Silence Button 17. Pulse Search Indicator

7. Alarm Silence Indicator 18. Data In Sensor Indicator

8. Adjust Up Button 19. Low Battery Indicator

9. Adjust Down Button 20. AC Power Indicator

10. Pulse Rate Alarm Limit Button 21. Speaker

TM

11. SatSeconds

Display

12. SatSeconds Alarm Limit

Button

N-560 Operator’s Manual 5

Description of Controls, Indicators, and Symbols

Identification of Rear Panel Components

1. Data Port Connector 3. AC Power Connector

N-560 Symbols

2. Visual Alarm Connector

Figure 2: Rear Panel Symbols

4. Equipotential Connector
(ground)

The symbols that are located on the rear panel of the N-560 are as
follows:

1. Data Interface

2. Caution - Do not connect while

power is on

3. Equipotential Terminal
(ground)

The symbols that are located on the front panel of the N-560 are as
follows:

6

Description of Controls, Indicators, and Symbols

1. Type BF Applied Part - Not

Defibrillator Proof

2. Pulse Rate 7. Data In Sensor

3. Interference 8. Low Battery

4. Sensor Off 9. AC Power/Battery Charge

5. Sensor Message

Description of Controls

Note: Each button press, except the Power On/Off button, should result

in either a valid or an invalid button tone. If the button pressed fails
to emit a tone, contact qualified service personnel.

Power On/Off button is used to turn the N-560 on or off.

The

6. Pulse Search

The

Alarm Silence button is used to silence current alarms for the alarm

silence duration period. When an alarm has been silenced, pressing the
button again reactivates, or “unsilences” the alarm. It is also used to view
and adjust alarm silence duration and alarm volume.

N-560 Operator’s Manual 7

Description of Controls, Indicators, and Symbols

The

Adjust Up button is used to increase alarm limit values, alarm silence

duration, pulse beep volume, alarm volume, and data port baud rate. The

Adjust Up button is used to select the communication protocol and time

settings. Press the
one digit. Holding the

Adjust Up button one time to increase the display by

Adjust Up button down for more than one second

cause the display digits to scroll.

Adjust Down button is used to decrease alarm limit values, alarm

The
silence duration, pulse beep volume, alarm volume, and data port baud
rate. The

Adjust Down button is used to select the communication

protocol and time settings. Press the
decrease the display by one digit. Holding the
for more than one second cause the display digits to scroll.

SpO2 Alarm Limit button is used to view the SpO2 alarm limit.

The
When the

Pulse Rate Alarm Limit button for approximately three seconds, the

SpO2 Alarm Limit button is pressed at the same time as the

menu options are enabled.

Pulse Rate Alarm Limit button is used to view the pulse rate alarm

The
limit. When the
time as the

Pulse Rate Alarm Limit button is pressed at the same

SpO2 Alarm Limit button for approximately three seconds,

the menu options are enabled.

Adjust Down button one time to

Adjust Down button down

SatSeconds Alarm Limit button is used to view the SatSeconds

The
alarm limit. When pressed, the SatSeconds limit options are enabled. The

Adjust Up and Adjust Down buttons are used to change the SatSeconds

limit settings.

8

Description of Controls, Indicators, and Symbols

Description of Displays and Indicators

The Pulse Amplitude Indicator (blip bar). A 10-segment LED that
indicates pulse beat and shows the relative (non-normalized) pulse
amplitude. As the detected pulse becomes stronger, more bars light with
each pulse.

The %SpO

2 Display. Shows the saturation level of oxygenated

hemoglobin. The display value flashes zero during loss-of-pulse alarms
and flashes the SpO

2 value in red when the SpO2 is outside the alarm

limits. During pulse search, the N-560 continues to update the display. If
alarm limits have been changed from their power-on defaults, a decimal
point (.) is displayed after the SpO

The

Pulse Rate Display. Shows the pulse rate in beats per minute. It

2 value (100.).

flashes zeros during loss-of-pulse alarms and flashes the beats per minute
value in red when the pulse rate is outside of the alarm limit. During pulse
search, the N-560 continues to update the display. Pulse rates outside of
the pulse rate range (20 to 250 bpm) are displayed as the closest value
within the range. If alarm limits have been changed from their power-on
defaults, a decimal point (.) is displayed after the pulse rate value (112.).

AC Power Indicator. Lights continuously when the N-560 is

The
connected to AC power. It also indicates that the battery is charging. It is
off when the N-560 is being powered by its internal battery.

Low Battery Indicator. Lights continuously to indicate that 15 or

The
fewer minutes of battery capacity remain. The

Low Battery indicator

flashes when the battery is critically low.

N-560 Operator’s Manual 9

Description of Controls, Indicators, and Symbols

The

Alarm Silence Indicator. Lights continuously when an audible alarm

has been silenced. It flashes when the alarm silence duration has been set
to OFF.

Interference Indicator. Lights whenever the OXIMAX software detects

The
that the incoming signal quality is degraded due to interference (see
Interference Explained on page 11).

An intermittently lit
monitoring, and indicates that the O
adjusting the amount of data required for measuring SpO

When lit continuously, it indicates that the O
extended the amount of data required for measuring SpO

Interference indicator is common during patient

XIMAX algorithm is dynamically

and Pulse Rate.

2

XIMAX algorithm has

and Pulse Rate,

2

and, consequently, fidelity in tracking rapid changes in these values may
be reduced (see Description of Displays and Indicators on page 9).

Pulse Search Indicator. Lights continuously prior to initial

The
acquisition of a pulse signal and during prolonged and challenging
monitoring conditions. It flashes during a loss-of-pulse signal.

The

Sensor Off Indicator is lit when either the sensor is invalid, or no

longer on the patient’s finger. It usually indicates that the sensor is not on
the patient.

Sensor Message Indicator. Lights when the N-560 cannot determine

The
an SpO

2 level or a pulse rate. The sensor message recommendations for

improving the signal are:

• Reposition sensor

• Check or change adhesive wrap

• Choose alternate site

10

• Warm site

• Cover sensor

• Use forehead, nasal, or ear sensor (adult patients only)

•Use O

XIMAX adhesive sensor

• Secure cable

• Secure with headband (M

AX-FAST)

• Remove nail polish

Description of Controls, Indicators, and Symbols

• Loosen sensor (too tight)

• Isolate external interference (electrosurgical device, cell phone)

• Clean site (MAX-R)

The

Data In Sensor Indicator. The indicator blinks for approximately one

minute when initially connected to the N-560 to indicate that the attached

O

XIMAX sensor contains a patient sensor event record. The indicator lights

continuously to indicate that the attached sensor memory is full. The
indicator does not light when there is no data in the sensor, even though a
valid sensor is connected to the N-560.

TM

The SatSeconds
management approaches the SatSeconds alarm limit threshold. All
segments of the SatSeconds indicator flash during a SatSeconds alarm.
When a SatSeconds setting other than OFF is selected, the green LED at
the top of the SatSeconds indicator will light. The green LED at the
12-o'clock position indicates that SatSeconds alarm management is
engaged.

Indicator. Fills in clockwise as the SatSeconds alarm

Interference Explained

Interference is a term that was formally introduced in
ISO9919:2005, “Medical electrical equipment — Particular
requirements for the basic safety and essential performance of pulse
oximeter equipment for medical use”. Interference may arise from a
number of sources, alone or in combination, and the term refers to
the effects on the incoming red and IR signals caused by
physiological conditions, medical procedures, or external agents.
The effect of interference on a pulse oximeter is due only to the
amount of interference, and is generally nondiscriminatory as to its
source. Interference may or may not affect the accuracy of
measurements, depending upon its severity, nature, or duration.

Factors which may result in interference include but are not limited
to:

N-560 Operator’s Manual 11

Description of Controls, Indicators, and Symbols

• incorrect sensor application
– sensor placement on an extremity with a blood pressure cuff,

arterial catheter, or intravascular line
– sensor applied too tightly
– incorrect sensor for placement site

• intravascular dyes, such as indocyanine green or methylene blue

• externally applied coloring agents, such as nail polish, dye, or
pigmented cream

• failure to cover the sensor with opaque material in high ambient
light conditions, for example, conditions created from one or
more of the following sources:

– surgical lights, especially xenon light sources
– bilirubin lamps
– fluorescent lights
– infrared heating lamps
– direct sunlight

• physical movement, either patient or imposed activity

12

• venous pulsation

• dysfunctional hemoglobin

• low perfusion

• intermittent pulsatility or arrhythmia

• electromagnetic interference (EMI)

• ventilator-induced pressure changes

Description of Controls, Indicators, and Symbols

Description of Audible Indicators

Following are descriptions of N-560 audible indicators.

Power-On Self-Test Pass A 1-second tone indicating that the N-560 has been

Valid Button Press A short, medium-pitched tone indicating that an

Invalid Button Press A short, low-pitched tone indicating that a button

High Priority Alarm A high-pitched, fast-pulsating tone indicating loss

Medium Priority Alarm A medium-pitched, normal-pulsating tone

Low Priority Alarm A low-pitched, slow-pulsating tone indicating a

turned on and has successfully completed the
power-on self-test

appropriate button has been pressed

has been pressed that is not appropriate for the
current state of the N-560

of pulse

indicating an SpO

2 or pulse rate limit violation

sensor disconnect, low battery, or N-560 failure

Alarm Silence Reminder Three beeps that sound approximately every

3 minutes when alarms are silenced with the alarm
silence duration set to OFF

Pulse Beep A single beep sounds for each detected pulse. The

pitch changes as monitored SpO

2 values increase or

decrease.

Volume Setting Tone A continuous tone that is used to adjust the alarm

volume

Confirmation Tone Three beeps sound to indicate that default settings

have been saved or reset to factory defaults or trend
data has been deleted

N-560 Operator’s Manual 13

Description of Controls, Indicators, and Symbols14Setting up the N-560

Setting up the N-560

WARNING: Explosion hazard. Do not use the N-560 pulse oximeter
in the presence of flammable anesthetics or gases.

WARNING: Pulse oximetry readings and pulse signals can be
affected by certain ambient environmental conditions, sensor
application errors, and certain patient conditions. See the
appropriate sections of the manual for specific safety information.

WARNING: To ensure patient safety, do not place the N-560 in any
position that might cause it to fall on the patient.

WARNING: As with all medical equipment, carefully route patient
cabling to reduce the possibility of patient entanglement or
strangulation.

WARNING: Disconnect the N-560 and Nellcor sensor from the
patient during magnetic resonance imaging (MRI) scanning. Induced
current could potentially cause burns. The N-560 may affect the MRI
image; the MRI unit may affect the accuracy of oximeter
measurements.

WARNING: To ensure accurate performance and prevent device
failure, do not subject the N-560 to extreme moisture, such as direct
exposure to rain. Such exposure may cause inaccurate performance
or device failure.

N-560 Operator’s Manual 15

Setting up the N-560

WARNING: Do not use an N-560, sensor, cables, or connectors that
appear to be damaged.

WARNING: The N-560 is not defibrillator-proof. However, it may
remain attached to the patient during defibrillation or while an
electrosurgical unit is in use, but the readings may be inaccurate
during use and shortly thereafter.

WARNING: In the USA, do not connect the N-560 to an electrical
outlet controlled by a wall switch because the N-560 may be
accidentally turned off.

WARNING: Use only the DOC-10 pulse oximetry cable with the
N-560. Use of another sensor cable will have an adverse effect on
performance. Do not attach any cable that is intended for computer
use to the sensor port. Do not connect any device other than a
Nellcor-approved sensor to the sensor connector.

List of Components

•N-560 Pulse Oximeter

• Nellcor Sensor or Assortment Pack

•DOC-10 Pulse Oximeter Cable

•N-560 Operator's Manual

• Hospital-Grade Power Cord or power cord appropriate for
country of sale

• Sensor Accuracy Grid

• Quick Guide

16

Connecting the N-560 to AC Power

1. Plug the female connector of the power cord into the N-560
AC power connector (1).

2. Plug the male connector of the power cord into a properly grounded
AC outlet.

Setting up the N-560

1. Power Connector

3. Verify that the

AC Power Indicator is lit.

Connecting a Sensor to the N-560

WARNING: Use only the DOC-10 pulse oximetry cable with the
N-560. Use of another sensor cable will have an adverse effect on
performance. Do not attach any cable that is intended for computer
use to the sensor port. Do not connect any device other than a
Nellcor-approved sensor to the sensor connector.

N-560 Operator’s Manual 17

Setting up the N-560

.

1. SpO2 Sensor Port

1. Connect a DOC-10 pulse oximetry cable to the SpO2 Sensor Port (1)

on the front of the N-560.

2. Connect an SpO

2 Sensor to the other end of the DOC-10 pulse

oximetry cable. Plug the sensor connector firmly into the DOC-10
pulse oximetry cable.

18

Battery Operation

WARNING: Dispose of an old battery by following local guidelines
for disposal of nickel metal hydride batteries.

Operating the N-560 on Battery Power

The N-560 has an internal battery that may be used to power the N-560
during transport or when AC power is not available. A new, fully charged
battery will provide at least 8 hours of monitoring time under the
following conditions: no audible alarms sound and no serial output
devices are attached.

Note: Whenever the N-560 is connected to AC power, the battery is being

charged. Therefore, it is recommended that the N-560 remain
connected to AC power when not in use. This will make a fully
charged battery available for use at any time.

Battery Operation

The N-560 cannot operate with a dead battery. Before attempting to turn
on an N-560 with a depleted battery, first plug the N-560 into an AC
outlet. The N-560 may then be powered on.

To charge a low or dead battery, connect the N-560 to AC power. A full
charge of a dead battery takes 6 hours.

When all of the following conditions are present for 15 minutes, the
N-560 will automatically shut down:

• N-560 is running on battery power

• No buttons have been pressed

• No pulse has been detected (for example, when no patient is

connected to the sensor or the sensor is disconnected)

• No alarms are present (other than low battery or a non-correctable

error)

N-560 Operator’s Manual 19

Battery Operation

Low Battery Indicator

The Low Battery Indicator lights and a low priority alarm begins to sound
when 15 minutes but not more than 20 minutes of monitoring time remain
on the existing battery charge. This alarm cannot be silenced while
running on battery power. Connecting the N-560 to AC power will silence
the alarm. If the N-560 is not connected to AC power within
approximately 15 minutes, the N-560 will shut off.

Note: As the battery is used and recharged over a period of time, the

It is recommended that qualified service personnel replace the internal
battery every 24 months.

amount of time between the onset of the low battery alarm and the
N-560 shutoff may become shorter.

CAUTION: If the N-560 is to be stored
service personnel to remove the battery from the N-560 prior to
storage. Recharge the battery when it has not been charged fo
more months.

The

Low Battery Indicator flashes and a high priority alarm begins to

sound when the battery reaches the lowest battery voltage at which an
N-560 can support normal operation. This alarm cannot be silenced while
running on battery power. If the N-560 is not connected to AC power, the
N-560 will shut off after 10 seconds.

for 3 months or longer, notify

r 3 or

20

Using the N-560

Turning on the N-560

Discussion

Before using the N-560 in a clinical setting, you must verify that the
N-560 is working properly and is safe to use. Proper working condition
can be verified by successful completion of the Power-On Self-Test
(POST), described in the following section.

WARNING: The N-560 should not be used adjacent to or stacked
with other equipment. If adjacent or stacked use is necessary, the
N-560 should be observed to verify normal operation in the
configuration in which it is used.

Using the N-560

CAUTION: If any indicator or display element does not light, or the
speaker does not sound, do not use the N-560. Instead, contact
qualified service personnel, your local Nellcor representative, or
Nellcor's Technical Services Department, 1.800.635.5267.

Note: The N-560 should complete the POST function within

12 seconds.

N-560 Operator’s Manual 21

Using the N-560

Procedure

1. Turn on the N-560 by pressing and holding the Power On/Off button

for more than one second.

2. The N-560 displays/sounds:

Display Sound

5 (in pulse rate left window) one beep tone

6 (in pulse rate center window) one beep tone

0 (in pulse rate right window) one beep tone

n (in SpO

n (in SpO

2 left window) none

2 center window) none

3. The N-560 automatically starts the Power-On Self-Test (POST),

which tests N-560 circuitry and functions.

CAUTION: During POST (immediately after power-up), confirm
that all display segments and indicators light, and the speaker sounds
a 1-second pass tone.

22

4. While performing POST, the self-test display appears for

approximately 2 to 4 seconds. During this time:

Using the N-560

• All indicators illuminate

• All segments of all numeric digits light and change from red to

green

• All segments of the

Pulse Amplitude Display light

• All segments of the SatSeconds indicator light

5. Once the display test portion of POST is complete, the N-560
software version is displayed for approximately 2 seconds.

Note: The device version illustrated is only a sample. The device version

identifies the hardware configuration and the software revision.

Device version numbers are often needed when calling Nellcor's
Technical Services Department, 1.800.635.5267, or your local
Nellcor representative for technical assistance. Write down the
numbers and have them available prior to requesting technical
assistance.

6. If the N-560 detects an internal problem during the self-test, an alarm
tone sounds and the N-560 displays an Error Code and the
corresponding number. See Troubleshooting on page 75.

N-560 Operator’s Manual 23

Using the N-560

7. Upon successful completion of the POST, the N-560 sounds a
one-second tone indicating that the N-560 has passed the test.

WARNING: If you do not hear the POST pass tone, do not use the
N-560.

WARNING: Ensure that the speaker is clear of any obstruction.
Failure to do so could result in an inaudible alarm tone.

Sensor Attached

24

Note: In addition to serving as the POST pass verification, the POST pass

tone also functions as an audible confirmation that the speaker is
performing properly. If the speaker does not function, the alarm
sounds cannot be heard.

The Pulse Search indicator and the Sensor Off indicator light and the
N-560 displays dashes in the %SpO

2 and Pulse Rate displays while the

N-560 is searching for a valid pulse.

Using the N-560

1. Sensor Off Indicator 2. Pulse Search Indicator

When a valid pulse is detected, the N-560 enters the Monitoring Mode
and displays patient parameters. Look for movement of the blip bar and, if
the pulse beep volume is not 0, listen for pulse beeps to verify that
displayed measurement values are current and accurate.

When a sensor is connected to the N-560 and is not connected to a patient,
the display reads dashes and the N-560 remains in the Pulse Search mode.

N-560 Operator’s Manual 25

Using the N-560

No Sensor Attached

Sensor Message

When the sensor is not attached the N-560 displays dashes (---) and the

Pulse Search indicator is not lit, indicating that the N-560 failed to detect

a sensor.

The Sensor Message feature is an indication that the sensor position or
site needs to be considered. The
the N-560 cannot determine an SpO

Sensor Message indicator lights when

2 level or a pulse rate. The Sensor

Message recommendations for improving the signal are:

26

• Reposition sensor

• Check or change adhesive wrap

• Choose alternate site

• Warm site

• Cover sensor

• Use forehead, nasal, or ear sensor (adult patients only)

•Use O

XIMAX adhesive sensor

• Secure cable

• Secure with headband (M

AX-FAST)

• Remove nail polish

• Loosen sensor (too tight)

• Isolate external interference (electrosurgical device, cell phone)

• Clean site (MAX-R)

Setting the Pulse Beep Volume

WARNING: Use only Nellcor-approved sensors and sensor cables.

Using the N-560

1. SpO2 Sensor Port

1. Connect a DOC-10 pulse oximetry cable to the SpO

on the front of the N-560.

2. Connect an SpO

2 Sensor to the other end of the DOC-10 pulse

oximetry cable.

3. Place the SpO

2 Sensor on the patient or yourself.

4. Turn on the N-560.

5. Press and hold the

Adjust Up or Adjust Down button to increase or

decrease the pulse beep tone volume.

2 Sensor Port (1)

N-560 Operator’s Manual 27

Using the N-560

Setting the Alarm Volume

With the N-560 in the normal monitoring mode:

1. Press and hold the
display appears.

2. While continuing to press the

Up

button or Adjust Down button to increase or decrease the alarm

volume.

Setting Alarm Silence Duration

Discussion

Alarm Silence button until the alarm volume

Alarm Silence button, press the Adjust

28

WARNING: Do not silence an audible alarm or decrease its volume if
patient safety could be compromised.

Alarms can be silenced for a preset period called alarm silence duration.
To view the current setting, press and hold the

Alarm Silence button until

30 SEC, 60 SEC, 120 SEC, or OFF is displayed. To adjust the settings,
press and hold the
or OFF is displayed. Continue holding the

Adjust Up button or Adjust Down button to increase or decrease the

the

Alarm Silence button until 30 SEC, 60 SEC, 120 SEC,

Alarm Silence button, and use

value. Possible values are 30, 60, 90, or 120 seconds, or OFF. The OFF
selection is discussed under Disabling Audible Alarms on page 30.

Procedure

Using the N-560

If the

Alarm Silence button is pressed during the alarm silence duration,

the alarm silence duration is ended and the audible alarms are re-enabled.

Visual indications of an alarm condition cannot be turned off. For
example, if the %SpO
silenced for the alarm silence duration, but the %SpO

2 lower alarm limit is exceeded, the alarm can be

2 value will continue

to flash.

If the alarm condition is still present when the alarm silence duration has
elapsed, the alarm will sound.

The power-on default setting for audible alarm silence duration is set at
the factory to 60 seconds. The default setting can be adjusted by service
personnel as described in the N-560 service manual.

With the N-560 in the normal monitoring mode:

1. Press the

Alarm Silence button until XX SEC is displayed. Durations

are: OFF, 30, 60, 90, and 120 seconds.

Note: For steps 2 and 3, the

pressed while pressing the

2. While pressing the

Adjust Up button to increase alarm silence duration to Off, 30, 60,

Adjust Up and Adjust Down buttons must be

Alarm Silence button.

Alarm Silence button, press and hold the

90, or 120 seconds.

N-560 Operator’s Manual 29

Using the N-560

3. While pressing the

Adjust Down button to decrease alarm silence duration to OFF, 30,

60, 90, or 120 seconds.

Note: Releasing the

silence duration.

Disabling Audible Alarms

Discussion

Setting the alarm silence duration to OFF means that the N-560 will
produce no audible alarms.

Visual indications of an alarm condition are not affected by disabling the
audible alarms.

The ability to set the alarm silence duration to OFF can be enabled or
disabled by qualified service personnel as described in the service
manual.

Alarm Silence button, press and hold the

Adjust Up or Adjust Down button sets the alarm

30

WARNING: Do not silence the audible alarm or decrease its volume
if patient safety could be compromised.

Procedure

Using the N-560

With the N-560 in the normal monitoring mode:

1. Press the

2. While pressing the

Adjust Up button until OFF is displayed. Release buttons.

Alarm Silence button until XX SEC is displayed.

Alarm Silence button, press and hold the

3. The

Alarm Silence indicator will flash, indicating that the alarm

sounds are disabled. The N-560 will sound three beeps approximately
every three minutes to warn the user that the alarm sound has been
silenced.

N-560 Operator’s Manual 31

Using the N-560

Verify Patient Settings

With the N-560 in the normal monitoring mode:

1. Press the

SpO2 Alarm Limit button to view the current %SpO2 upper

alarm limit.

2. Press the SpO2 Alarm Limit button twice to view the current %SpO2
lower alarm limit.

32

3. Press the

Pulse Rate Alarm Limit button to view the current Pulse

Rate upper alarm limit.

Using the N-560

4. Press the

Pulse Rate Alarm Limit button twice to view the current

Pulse Rate lower alarm limit.

5. Press the

SatSeconds Alarm Limit button to view the current

SatSeconds setting.

Note: The SatSeconds (12 O’clock) indicator lights, indicating that

SatSeconds units are being reviewed. The SatSeconds (12 O’clock)
indicator lights for all SatSeconds except Off.

N-560 Operator’s Manual 33

Using the N-560

Alarm Limits Changed Indicator

If an alarm limit is changed from the N-560’s power-on default setting, a
decimal point appears after the applicable displayed value, during patient
monitoring and when alarm limits are viewed. The decimal point remains
on the display until the N-560 is turned off or the limit is returned to the
default value.

Alarm limits that have been changed from the default setting are
identified by a decimal point (.) after the displayed reading (%SpO
Pulse Rate).

2 or

Setting Alarm Limits

Discussion

Alarm limits determine the upper and lower points of patient data at
which the N-560 will sound an alarm.

Procedure

With the N-560 in the normal monitoring mode:

1. Press
alarm limit.

SpO2 Alarm Limit button to view the current %SpO2 upper

34

Using the N-560

2. Press the
decrease the alarm limit setting.

Adjust Up button or Adjust Down button to increase or

Note: When an alarm limit is changed from power-on default, the
N-560 displays a decimal point (.) after the changed parameter.

3. Press the SpO2 Alarm Limit button twice to view the current %SpO2
lower alarm limit.

4. Press the
decrease the alarm limit setting.

N-560 Operator’s Manual 35

Adjust Up button or Adjust Down button to increase or

Using the N-560

5. Press the

Pulse Rate Alarm Limit button to view the current upper

alarm limit for Pulse Rate.

6. Press the

Adjust Up button or Adjust Down button to increase or

decrease the alarm limit setting.

7. Press the

Pulse Rate Alarm Limit button twice to view the current

lower alarm limit for Pulse Rate.

36

8. Press

Adjust Up button or Adjust Down button to increase or

decrease the alarm limit setting.

Setting SatSeconds Duration

Discussion

Refer to Describing SatSeconds on page 87 for a description of the
SatSeconds function.

Procedure

With the N-560 in the normal monitoring mode:

Using the N-560

1. Press the
setting is displayed.

SatSeconds Alarm Limit button. The current SatSeconds

Note: The possible settings for SatSeconds are Off, 10, 25, 50, and
100 seconds.

2. Press the Adjust Up button or Adjust Down button to select the
desired SatSeconds setting.

Setting the Data Port Baud Rate

Discussion

The baud rate determines the speed at which the N-560 sends data to the
attached equipment (printer or computer). The baud rate is determined by
the capabilities of the attached equipment.

N-560 Operator’s Manual 37

Using the N-560

Procedure

With the N-560 in the normal monitoring mode:

1. Simultaneously, press the

Alarm Limit

2. Press the

button for 3 seconds. Menu option 1 will be displayed.

Adjust Up button until menu item option 4 is displayed.

SpO2 Alarm Limit button and Pulse Rate

38

3. Press the
displayed.

SatSeconds Alarm Limit button. Current baud rate is

Using the N-560

Press the

Adjust Up button or Adjust Down button to select the desired

baud rate. Possible settings are:

• 24 (2,400 bps)

• 96 (9,600 bps)

• 192 default (19,200 bps).

Setting the Data Port Protocol

With the N-560 in the normal monitoring mode:

1. Simultaneously, press the

Alarm Limit

displayed.

button for three seconds. Menu option 1 will be

SpO2 Alarm Limit button and Pulse Rate

2. Press the

Adjust Up button until menu item option 5 is displayed.

N-560 Operator’s Manual 39

Using the N-560

3. Press the

SatSeconds Alarm Limit button. Current protocol is

displayed.

4. Press the

Adjust Up button or Adjust Down button to select the

desired protocol. Possible settings are:

1 - ASCII
2 - External equipment communications. Refer to the external equip-

ment manuals for the interfacing instructions.

Clearing Trend Information

40

With the N-560 in the normal monitoring mode:

1. Simultaneously press and hold the

Pulse Rate Alarm Limit button for at least three seconds. Option 1

SpO2 Alarm Limit button and

will be displayed.

Using the N-560

2. Press the

3. Press the

Adjust Up button to select Option 2.

SatSeconds Alarm Limit button to clear the trend data.

4. The N-560 emits 3 beeps, indicating that data is cleared.

N-560 Operator’s Manual 41

Using the N-560

42

N-560 Trend

Trend Data Operation

From the initial measurement of a patient, trend data (a data point) is
stored in memory every 4 seconds. Up to 50 alarm limit changes can also
be stored in trend data. The N-560 can store up to 24 hours of trend data.

The N-560 trend data will be lost if the coin cell battery fails or is
removed. The coin cell battery is located on the main circuit board.

CAUTION: Changing alarm limit settings uses trend memory space.
Change alarm limits only as needed.

Note: Trend memory always contains the most recent 24 hours of

data, with newly collected data overwriting the oldest data on a
rolling basis. The N-560 continues to record data points as long as
the N-560 is powered on and an initial patient measurement has
been made, with “blank” data points collected if no sensor is
connected to the N-560 or patient. “Blank” data will overwrite
older patient data if the memory becomes full. Therefore, if you
want to save old patient data, it is important that you turn your
N-560 off when you are not monitoring a patient, and that you
download the trend memory before it fills up and overwrites the old
data with new data (or “blank” data).

N-560 Trend

N-560 Operator’s Manual 43

N-560 Trend

Trend Data

Trend data information may be retrieved or cleared through the N-560
data port using options available in a display menu.

#1: Trend Print

To access the menu options, simultaneously press the

Pulse Rate Alarm Limit buttons until Option 1 appears on the

and
display.

Then, using the
scroll through the available menu options as follows:

Allows printing of the existing trend data. The output may be viewed on a
PC using the Hyper Terminal program. You must press the

Alarm Limit

page 57.

Adjust Up button and Adjust Down button, you may

button to initiate printing. Refer to Trend Data Printout on

SpO2 Alarm Limit

SatSeconds

#2: Trend Clear

#3: Not Used

#4: Baud Rate

44

Clears the existing trend data. To activate, press the SatSeconds Alarm

Limit

button.

Allows the interconnection to various printers. Refer to Setting the Data
Port Baud Rate on page 37. The baud rate selections are:

#5: Data Port Printout

Selections are as follows:

Option 1

Printout in ASCII characters.

Option 2

External equipment communications. Refer to the external equipment
manual for the interfacing instructions.

N-560 Trend

• 24 (2,400 baud rate)

• 96 (9,600 baud rate)

• 192 default (19,200 baud rate)

N-560 Operator’s Manual 45

N-560 Trend

46

Using the Data Port

Overview

Patient data can be obtained through the data port on the back of the
N-560 by connecting it to an attached PC or serial printer.

When connecting the N-560 to a printer or PC, verify proper operation
before clinical use. Both the N-560 and the printer or PC must be
connected to a grounded AC outlet. The N-560 protocol setting must be
ASCII.

Any printer or PC connected to the N-560's data port must be certified
according to IEC Standard 60950. All combinations of equipment must be
in compliance with IEC Standard 60601-1-1 systems requirements.
Anyone who connects a printer or PC to the data output port configures a
medical system and is therefore responsible for ensuring that the system
complies with the requirements of system standard IEC Standard
60601-1-1 and the electromagnetic compatibility system standard IEC
Standard 60601-1-2.

Using the Data Port

Connecting to the Data Port

The N-560 data port may be connected to the printer or PC by using a
cable terminated with an AMP connector (AMP part number 747538-1),
ferrule (AMP part number 1-747579-2), and compatible pins (AMP part
number 66570-2). The cable should be no more than 25 feet (7.6 meters)
in length. The external ITE (Information Technology Equipment) device
must be certified to UL-1950 or IEC-60950.

The cable used must have a braided shield providing 100% coverage,
such as a Belden cable (Belden part number 9609) or equivalent. The
shield must have a 360-degree connection to the metal shell on the
N-560's DB-15 connector and to the connector on the PC or serial printer.
Do not create sharp bends in the cable, as this may tear or break the
shielding.

N-560 Operator’s Manual 47

Using the Data Port

No hardware flow control is used. However, in the ASCII mode, XON/
XOFF flow control is supported.

Data Port Pinouts

TXD represents the Transmit Data line, and RXD is the Receive Data
line.

The pinouts for the data port are listed in Table 1.

Table 1: Data Port Pinouts

Pin Signal Name

1 RXD+ (RS-422 positive input)

2RXD (RS-232 input)

3TXD (RS-232 output)

4 TXD+ (RS-422 positive output))

5 Signal Ground (isolated from Earth Ground)

6 NC (No connection)

7 Normally Open (relay closure nurse call, normally open)

8 Normally Closed (relay closure nurse call, normally closed)

9 RXD- (RS-422 negative output)

10 Signal Ground (isolated from earth ground)

11 Nurse Call (RS-232 level output)

12 TXD- (RS-422 negative output)

13 NC

14 NC

15 Nurse Call Common

The pin layouts (as viewed from the rear panel of the N-560) are
illustrated in Figure 3. The conductive shell is connected to earth ground
when connected to a PC or printer.

48

Data Port Setup

Discussion

Using the Data Port

Figure 3: Data Port Pin Layout

Pins 2, 3, 5, and 11 provide data in RS-232 format.

Pins 1, 4, 9, and 12 provide data in RS-422 format. TXD+ and TXD- are
the differential transmit data pair. RXD+ and RXD- are the differential
receive pair.

Use the Data Port Setup procedure to configure the N-560 data port baud
rate and protocol.

Procedure

With the N-560 in the normal operating mode:

1. Simultaneously press and hold the

Pulse Rate Alarm Limit button for at least 3 seconds. Option 1 will

be displayed.

N-560 Operator’s Manual 49

SpO2 Alarm Limit button and

Using the Data Port

2. Press the

3. Press the

Adjust Up button until Option 4 is displayed.

SatSeconds Alarm Limit Button to select Option 4. The

selected baud rate will be displayed.

50

Note: The available selections are:

• 24 = 2400 baud rate

• 96 = 9600 baud rate

• 192 = 19200 baud rate

4. Press the

Adjust Up button or the Adjust Down button to select the

desired baud rate.

5. Press the

SatSeconds Alarm Limit button to save the desired baud

rate.

Using the Data Port

6. Simultaneously press and hold the

Pulse Rate Alarm Limit button for at least 3 seconds. Option 1 will

SpO2 Alarm Limit button and

be displayed.

7. Press the

Adjust Up button until Option 5 is displayed.

8. Press the

SatSeconds Alarm Limit Button to select Option 5. The

selected protocol will be displayed.

N-560 Operator’s Manual 51

Using the Data Port

Note: The available selections are:

• 1 = Real time ASCII

• 2 = External equipment communications. Refer to the external

equipment manuals for the interfacing instructions.

9. Press the
desired protocol.

10. Press the
protocol.

Adjust Up button or the Adjust Down button to display the

SatSeconds Alarm Limit button to save the desired

52

Nurse Call Interface

WARNING: The nurse call feature should not be used as the primary
source of alarm notification. The audible and visual alarms of the
pulse oximeter, used in conjunction with clinical signs and symptoms,
are the primary sources for notifying medical personnel that an
alarm condition exists.

WARNING: The nurse call feature is not functional whenever the
pulse oximeter alarms are silenced.

Caution: The nurse call function needs to be tested after it has been
set up in your facility. The nurse call feature should be tested
whenever setting up the N-560 pulse oximeter in a location that uses
nurse call. If an attached O
patient, the N-560 remains in the Pulse Search Mode for awhile, then
the N-560 displays “--- “ (3 dashes) in the %SpO
display. One way to test the nurse call function is to create an alarm
condition (for example, sensor disconnect) and verify that your
facility's nurse call system is activated.

Using the Data Port

XIMAX sensor is disconnected from the

2 and pulse rate

The nurse call feature of the N-560 is operational when the N-560 is
powered by AC power or battery power. The nurse call feature of the
N-560 works in conjunction with the nurse call system of your institution
when the N-560 sounds an audible alarm.

The N-560 provides two different types of nurse call interfaces: an
RS-232 format and relay closure. Both interfaces function when the
N-560 is operating either on AC power or battery power.

The remote location is signaled anytime there is an audible alarm. If the
audible alarm has been turned off or silenced, the nurse call function is
also turned off.

N-560 Operator’s Manual 53

Using the Data Port

Pin 11 on the data port is the RS-232 level nurse call signal and pin 5 or
10 is ground (see Table 1 on page 48). When there is no alarm condition,
the voltage between pins 10 and 11 is -5 to -12 VDC. Whenever the
N-560 is in an alarm condition, the output between pins 10 and 11 is +5 to
+12 VDC. This is the default condition (normally low). There is a service
menu to change the default condition. Refer to the N-560 service manual
for the procedure.

Pins 7 and 15 provide a relay that closes when an alarm is sounding on the
N-560. Pins 8 and 15 provide a relay that opens when an alarm is
sounding. Pin 15 is a common lead for both relays.

Note: When the relay is closed there is approximately 27 ohms of

resistance.

Setting Nurse Call RS-232 Polarity

The nurse call polarity can be set to a high signal on an N-560 alarm
condition or a low signal on an N-560 alarm condition. Refer to the N-560
service manual for setting the Nurse Call RS-232 polarity.

Setting Nurse Call Relays Normally Open/Closed

Data port pins 7 and 15 provide a relay that closes (nominally 27 ohms)
when an alarm is sounding on the N-560. Pins 8 and 15 provide a relay
that opens when an alarm is sounding. Pin 15 is a common lead for both
relays. The relay operates whether the N-560 is operating on AC power or
battery.

54

Printing

Printing N-560 Real-Time Data

Real-time data is continuously sent to the data port on the back of the
N-560. Patient data can be obtained through the data port by connecting
to a computer or serial printer. When a real-time printout or display is
being transmitted to a printer or computer, a new line is printed/displayed
every 2 seconds. Column headings are printed/displayed every 25 lines,
or if one of the values in the column heading is changed.

Note: If the data output stops transmitting, the N-560 must be turned off

and then turned back on.

When connecting the N-560 to a printer or computer, verify proper
operation before clinical use. Both the N-560 and the printer or PC must
be connected to a grounded AC outlet.

Printing

Any printer or computer connected to the N-560's data port must be
certified according to IEC Standard 60950. All combinations of
equipment must be in compliance with IEC Standard 60601-1-1 systems
requirements. Anyone who connects a printer or PC to the data output
port configures a medical system and is therefore responsible that the
system complies with the requirements of system standard IEC Standard
60601-1-1 and the electromagnetic compatibility system standard IEC
Standard 60601-1-2.

1. Data Port Connector

N-560 Operator’s Manual 55

Printing

1. Connect the serial printer to the N-560's Data Port connector (1).

2. Turn on the printer.

3. Connect the N-560 to an AC outlet.

4. Turn on the N-560.

The printer will start printing real time trend data or the PC will start
displaying real time data at a rate of one line every 2 seconds.

56

Figure 4: Real-Time Data Printout

Trend Data Printout

The format of data displayed when a trend printout is requested is the
same as the real-time data. The only differences are that “TREND” is
displayed in the top row instead of the “CRC: XXXX” software
verification number and there is no “Status” column.

Readings are displayed in 4-second intervals. The values on each row are
an average for the 4-second period.

At the end of the printout, an “Output Complete” line indicates that the
transmission was successful. If the “Output Complete” line is not present,
a corruption of the data may have been detected and the data should be
ignored.

Printing

Figure 5: Trend Data Printout

Once a trend printout has begun, the N-560 must be turned off and back
on again before a new trend printout can begin.

N-560 Operator’s Manual 57

Printing

Column Headings

Data Source

Column headings are displayed or printed after every 25 lines, or if one of
the values in the column heading changes.

Data in the highlighted box above represents the model number of the
N-560, in this case the N-560.

Device/Software Revision Level

The next data field tells the user the software level (Version 1.00.00) and a
software verification number (CRC: XXXX). Neither of these numbers
should change during normal operation. The numbers may change if the
N-560 is serviced and receives a software upgrade.

Alarm Limits

58

The last data field in the top line indicates the upper and lower alarm
limits for %SpO
setting (OFF). The SatSeconds setting may be OFF, 10, 25, 50, or 100
depending on the SatSeconds alarm setting. In the example above, the low
alarm limit for SpO
alarm limits are 40 to 170 bpm. SatSeconds alarm limit is set to off.

N-560 Mode

The N-560 mode is ADULT.

Data Column Headings

Printing

2 and for the pulse rate (PR), and the SatSeconds alarm

2 is 85% and the upper alarm limit is 100%. Pulse Rate

Actual column headings are in the third row of the column heading line.
Patient data that is presented in the chart, from left to right, are the time
that the patient data on the row was obtained, the current %SpO

2 value

being measured, the current Pulse Rate in beats per minute (bpm), the
current Pulse Amplitude (PA), and the operating status of the N-560.

Time

The Time column represents the N-560 real-time clock. Refer to the
N-560 service manual to set the N-560 real-time clock.

N-560 Operator’s Manual 59

Printing

Patient Data

Operating Status

Patient data is highlighted in the display above. Parameter values are
displayed directly beneath the heading for each parameter. In this
example, the %SpO

2 is 100, and the pulse rate is 190 beats per minute. An

asterisk indicates that the parameter is outside the set limits. If no data for
a parameter is available, three dashes (- - -) are displayed.

PA represents pulse amplitude. The number can range from 0 to 254.
There are no alarm parameters for this value. It can be used for trending
information as an indication of a change in pulse volume, relative pulse
strength, or circulation.

60

The Status column indicates alarm conditions and operating status of the
N-560. In this example, Pulse High (PH) means that the pulse rate upper
alarm limit has been exceeded. The status codes are listed in the following
table. As many as four codes can be displayed at one time in the Status
column.

Code Meaning

AO Alarm Off

AS Alarm Silence

LB Low Battery

LM Loss of Pulse w/Interference

LP Loss of Pulse

MO Interference Detected

PH Pulse Rate Upper Limit Alarm

PL Pulse Rate Lower Limit Alarm

PS Pulse Search

SH Saturation Upper Limit Alarm

SL Saturation Lower Limit Alarm

SD Sensor Disconnect

SO Sensor Off

Printing

Note: A sensor disconnect and sensor off will also cause three dashes

( - - - ) to be displayed in the patient data section of the printout.

N-560 Operator’s Manual 61

Printing

62

Sensors and Accessories

Selecting a Sensor

WARNING: Before use, carefully read the sensor directions for use,
including all warnings, cautions, and instructions.

WARNING: Do not use a damaged sensor or pulse oximetry cable.
Do not use a sensor with exposed optical components.

WARNING: Use only Nellcor sensors and pulse oximetry cables with
the N-560. Other sensors or pulse oximetry cables may cause
improper N-560 performance.

Sensors and Accessories

WARNING: Use only one pulse oximetry cable to increase the length
of the sensor. Use of more than one pulse oximetry cable may have an
adverse effect on performance. Do not attach any cable that is
intended for computer use to the sensor port.

WARNING: Pulse oximetry readings and pulse signal can be affected
by certain ambient environmental conditions, sensor application
errors, and certain patient conditions.

WARNING: Tissue damage can be caused by incorrect application or
duration of use of an SpO
in the sensor directions for use.

WARNING: Do not immerse or wet the sensor.

N-560 Operator’s Manual 63

2 sensor. Inspect the sensor site as directed

Sensors and Accessories

When selecting a sensor, consider the patient's weight and activity level,
the adequacy of perfusion and the available sensor sites, the need for
sterility, and the anticipated duration of monitoring. For more
information, refer to Table 2 or contact your local Nellcor representative.

For a complete and up-to-date listing of all sensors applicable to the
N-560, refer to the Sensor Accuracy Grid posted on the Internet at:

http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/ProductManuals.html

Follow the sensor sterilization procedures in the applicable sensor
directions for use (DFU).

Table 2: Nellcor Oximetry Sensor Models and Patient Weights

OXIMAX Sensor

OXIMAX MAX-FAST adhesive
forehead sensor, single-patient-use

O

XIMAX Softcare nonadhesive

sensor, single-patient-use, preterm
infant

XIMAX Softcare nonadhesive

O

sensor, single-patient-use, neonate

O

XIMAX Softcare nonadhesive

sensor, single-patient-use, adult

O

XIMAX adhesive sensor,

single-patient-use, adult

O

XIMAX adhesive sensor,

single-patient-use, adult, longer cable
36 inches (91.44 cm)

XIMAX adhesive sensor,

O

single-patient-use, neonatal/adult

O

XIMAX adhesive sensor,

single-patient-use, pediatric

O

XIMAX adhesive sensor,

single-patient-use, infant

Model

Patient Size

MAX-FAST >10 kg (>22 lbs)

SC-PR <1.5 kg (<3.3 lbs)

SC-NEO 1.5 to 5 kg (3.3 to

11 lbs)

SC-A >40 kg (>88 lbs)

MAX-A >30 kg (>66 lbs)

MAX-AL >30 kg (>66 lbs)

MAX-N <3 kg or >40 kg

(<6.6 lbs or >88 lbs)

MAX-P 10 to 50 kg (22 to

110 lbs)

MAX-I 3 to 20 kg (6.6 to

44 lbs)

1

64

Sensors and Accessories

Table 2: Nellcor Oximetry Sensor Models and Patient Weights

(Cont.)

OXIMAX Sensor

OXIMAX adhesive sensor,
single-patient-use, adult nasal

O

XIMAX OxiCliq

sensor, single-patient-use, adult,
reusable cable

XIMAX OxiCliq nonadhesive sensor,

O

single-patient-use, neonatal/adult,
reusable cable

XIMAX OxiCliq nonadhesive sensor,

O

single-patient-use, pediatric, reusable
cable

XIMAX OxiCliq nonadhesive sensor,

O

single-patient-use, infant, reusable
cable

XIMAX Durasensor

O

sensor, reusable, adult

O

XIMAX Oxiband

neonatal/adult

O

XIMAX Oxiband sensor, reusable,

pediatric/infant

O

XIMAX Dura-Y

reusable

®

nonadhesive

®

finger-clip

®

sensor, reusable,

®

multisite sensor,

Model

Patient Size

MAX-R >50 kg (>110 lbs)

OxiCliq A >30 kg (>66 lbs)

OxiCliq N <3 kg or >40 kg

(<6.6 lbs or >88 lbs)

OxiCliq P 10 to 50 kg (22 to

110 lbs)

OxiCliq I 3 to 20 kg

(6.6 to 44 lbs)

DS-100A >40 kg (>88 lbs)

OXI-A/N <3 kg or >40 kg

(<6.6 lbs or >88 lbs)

OXI-P/I 3 kg to 40 kg

(6.6 lbs to 88 lbs)

D-YS >1 kg (>2.2 lbs)

1

For use with the Dura-Y sensor:

• Ear clip (Reusable, non-sterile) D-YSE >30 kg (>66 lbs)

TM

• Pedi-Check

pediatric spot-check

clip (Reusable, non-sterile)

D-YSPD 3 kg to 40 kg

(6.6 lbs to 88 lbs)

1. The symbol > means greater than and the symbol < means
less than.

N-560 Operator’s Manual 65

Sensors and Accessories

Biocompatibility Testing

Biocompatibility testing has been conducted on Nellcor OxiMax sensors
in compliance with ISO 10993-1, Biological Evaluation of Medical
Devices, Part 1: Evaluation and Testing. The OxiMax sensors have passed
the recommended biocompatibility testing and are therefore in
compliance with ISO 10993-1.

Optional Accessories

Several optional accessories are offered with the N-560. Contact Nellcor's
Technical Services Department, 1.800.635.5267, or your local Nellcor
representative for information about these accessories.

• Visual alarm indicator

• Pole mount bracket

Accessories for the N-560 are listed on the Internet at:

http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/Apartweb/main/

Visual Alarm Indicator

An optional visual alarm indicator is available for the N-560. The visual
alarm indicator mounted on the top of the N-560 with double-back tape.
The visual alarm indicator is connected to the rear of the N-560.

CAUTION: The N-560 must be turned off when connecting or
disconnecting the visual alarm indicator.

66

Pole Mount Bracket

Sensors and Accessories

1. Visual alarm indicator

An optional pole mount bracket is available for the N-560. The pole
mount bracket may be used to attach the N-560 to an IV pole. The pole
mount bracket is attached to the rear of the N-560.

N-560 Operator’s Manual 67

Sensors and Accessories

68

Performance Considerations

Performance Considerations

WARNING: Pulse oximetry readings and pulse signals can be
affected by certain ambient environmental conditions, sensor
application errors, and certain patient conditions. See the
appropriate sections of the manual for specific safety information.

Performance Verification

The performance of the N-560 can be verified by following the
procedures outlined in the Performance Verification section of the N-560
service manual. Qualified service personnel should perform these
procedures before using the N-560 for the first time in a clinical setting.

N-560 Performance Considerations

Certain patient conditions can affect the measurements of the N-560 and
cause the loss of the pulse signal.

Inaccurate measurements can be caused by:

• excessive patient movement

• venous pulsations

• intravascular dyes, such as indocyanine green or methylene blue

• defibrillation

Dysfunctional Hemoglobins

Dysfunctional hemoglobins such as carboxyhemoglobin, methemoglobin,
and sulphemoglobin are unable to carry oxygen. SpO
appear normal; however, a patient may be hypoxic because less
hemoglobin is available to carry oxygen. Further assessment beyond
pulse oximetry is recommended.

N-560 Operator’s Manual 69

2 readings may

Performance Considerations

Anemia

Anemia causes decreased arterial oxygen content. Although SpO2
readings may appear normal, an anemic patient may be hypoxic.
Correcting anemia can improve arterial oxygen content. The pulse
oximeter may fail to provide an SpO
5 gm/dl.

Saturation

The N-560 will only measure saturation levels between 1 and 100%.

Pulse rates

The N-560 will only measure pulse rates between 20 and 250 beats per
minute. Detected pulse rates outside the range of 20 to 250 beats per
minute are displayed as the closest value within the range.

Sensor Performance Considerations

2 if hemoglobin levels fall below

70

WARNING: Pulse oximetry readings and pulse signal can be affected
by certain ambient conditions, sensor application errors, and certain
patient conditions.

Inaccurate measurements can be caused by:

• incorrect application of the sensor

• placement of the sensor on an extremity with a blood pressure
cuff, arterial catheter, or intravascular line

• ambient light

• excessive patient movement

Loss-of-pulse signal can occur for the following reasons:

• the sensor is applied too tightly

Performance Considerations

• a blood pressure cuff is inflated on the same extremity as the one
with the sensor attached

• there is arterial occlusion proximal to the sensor

Use only Nellcor sensors and sensor cables.

WARNING: The use of accessories, sensors, and cables other than
those specified may result in increased emission and/or decreased
immunity and inaccurate readings of the N-560 pulse oximeter.

Select an appropriate sensor, apply it as directed, and observe all warnings
and cautions presented in the directions for use accompanying the sensor.
Clean and remove any substances such as nail polish from the application
site. Periodically check to ensure that the sensor remains properly
positioned on the patient.

WARNING: Tissue damage can be caused by incorrect application or
inappropriate duration of use of an SpO

2 sensor. Inspect the sensor

site as directed in the sensor directions for use.

High ambient light sources such as surgical lights (especially those with a
xenon light source), bilirubin lamps, fluorescent lights, infrared heating
lamps, and direct sunlight can interfere with the performance of an SpO

2

sensor. To prevent interference from ambient light, ensure that the sensor
is properly applied and cover the sensor site with opaque material.

Caution: Failure to cover the sensor site with opaque material in high
ambient light conditions may result in inaccurate measurements.

If patient movement presents a problem, try one or more of the following
remedies to correct the problem.

• verify that the sensor is properly and securely applied

• move the sensor to a less active site

• use an adhesive O

XIMAX sensor that improves patient skin contact

• use a new sensor with fresh adhesive backing

N-560 Operator’s Manual 71

Performance Considerations

• Keep the patient still, if possible

If poor perfusion affects performance, consider using the O

XIMAX

MAX-R sensor; it obtains measurements from the nasal septal anterior
ethmoid artery, an artery supplied by the internal carotid artery. This
sensor may obtain measurements when peripheral perfusion is relatively
poor.

72

Operator’s Menu

This operator’s menu (Table 3) provides a quick reference to the functions
on the N-560. The functions that are in Bold are the default settings.

Operator’s Menu

Table 3: Operator’s Menu

Menu

1 — Trend print (tabular

2 — Trend clear Clearing Trend

3 — Language English —

4 — Baud rate: Setting the Data Port

— 24 2400 baud —

— 96 9600 baud —

— 192 19200 baud —

5 — Data Port Protocol: Setting the Data Port

—1ASCII —

— 2 External equipment

Sub-

Menu

Function Reference Paragraph

N-560 trend only)

communications.

Trend Data Printout on
page 57

Information on page 40

Baud Rate on page 37

Protocol on page 39

Refer to the external
equipment manuals for
the interfacing
instructions.

N-560 Operator’s Manual 73

Operator’s Menu

74

Troubleshooting

WARNING: If you are uncertain about the accuracy of any
measurement, check the patient's vital signs by alternate means; then
make sure the N-560 is functioning correctly.

WARNING: The cover should be removed only by qualified service
personnel. There are no user-serviceable parts inside.

CAUTION: Do not spray, pour, or spill any liquid on the N-560, its
accessories, connectors, switches, or openings in the chassis.

Error Codes

Troubleshooting

When the N-560 detects an error condition, it may display the letters
“EEE” followed by an error code.

When an error code is displayed, turn the N-560 off, wait 10 seconds, and
turn the N-560 on. If the error code is listed in Table 4, follow the
action(s) listed. If the action does not correct the error condition, notify
service personnel. If the error code is not listed in Table 4, notify service
personnel.

When the N-560 detects a defective sensor connected to the N-560 the
N-560 displays an error code of “Sen Err.” The sensor should be replaced
and the N-560 power should be recycled.

N-560 Operator’s Manual 75

Troubleshooting

Table 4: Error Codes

Corrective Action

If you experience a problem while using the N-560 and are unable to
correct it, contact Nellcor’s Technical Services Department or your local
Nellcor representative. The N-560 service manual, which is for use by
qualified service personnel, provides additional troubleshooting
information.

Error
Code

513 1 — Charge the battery.

2 — Notify service personnel.

514 1 — Restart the N-560.

2 — Notify service personnel.

525 1 — Restart the N-560.

2 — Notify service personnel.

526 1 — Restart the N-560.

2 — Notify service personnel.

528 1 — Restart the N-560.

2 — Notify service personnel.

Action

76

Following is a list of possible problems and suggestions for correcting
them.

Troubleshooting

1. There is no response to the

Power On/Off button.

• If the N-560 is operating on AC power, the fuse may be blown.
Notify service personnel to check and, if necessary, replace the
fuse.

• If the N-560 is on battery power, the battery fuse may require
replacement, the battery may be missing, or the battery may be
discharged. Charge the battery or notify service personnel to
replace the battery or the battery fuse, as required.

2. One or more display segments or indicators do not light during
the power-on self-test.

• Do not use the N-560; contact qualified service personnel or your

local Nellcor representative.

3. The N-560 does not sound a tone indicating successful completion
of the Power-On Self-Test (POST).

• The N-560 has failed the power-on self-test. Do not use the

N-560. This tone not only indicates the successful completion of
POST, but it confirms that the audible alarm is functional.
Contact qualified service personnel or your local Nellcor
representative.

4. The Pulse Search indicator is lit for more than 10 seconds while
the sensor is connected to the patient.

• Check the sensor directions for use to determine if an appropriate

sensor is being used and if it is applied properly. Check sensor
and sensor cable connections. Test the sensor on someone else.
Try another sensor or sensor cable.

N-560 Operator’s Manual 77

Troubleshooting

• Perfusion may be too low for the N-560 to track the pulse. Check

the patient. Test the N-560 on someone else. Change the sensor
site. Try another type of sensor.

• Interference may be preventing the N-560 from tracking the
pulse. Verify that the
replace it if necessary. Change the

OXIMAX sensor that maintains better contact with the patient’s

of
skin, such as an adhesive

OXIMAX sensor is securely applied and

OXIMAX sensor site. Use a type

OXIMAX sensor.

• Electromagnetic interference may be preventing the N-560 from
tracking the pulse. Remove the source of interference (e.g.,
isolate the electromagnetic source or stabilize the sensor site). See
the caution in the EMI (Electro-magnetic Interference) section on
page 79.

• The sensor may be too tight, there may be excessive ambient
light, or the sensor may be on an extremity with a blood pressure
cuff, arterial catheter, or intravascular line. Reposition the sensor,
as necessary.

5. The

Pulse Search indicator lights after successful measurements

have been made.

• Check the patient.

• Perfusion may be too low for the N-560 to track the pulse. Test
the N-560 on someone else. Change the sensor site. Try another
type of sensor. Refer to Sensor Performance Considerations on
page 70.

• Interference may be preventing the N-560 from tracking the
pulse. Verify that the
replace it if necessary. Change the
of

OXIMAX sensor that maintains better contact with the patient’s

skin, such as an adhesive

OXIMAX sensor is securely applied and

OXIMAX sensor site. Use a type

OXIMAX sensor.

• Electromagnetic interference may be preventing the N-560 from
tracking the pulse. Remove the source of interference (e.g.,
isolate the electromagnetic source or stabilize the sensor site). See
the caution in the EMI (Electro-magnetic Interference) section on
page 79.

78

Troubleshooting

•The

OXIMAX sensor may be too tight, there may be excessive

ambient light, or the

OXIMAX sensor may be on an extremity with

a blood pressure cuff, arterial catheter, or intravascular line.
Reposition the sensor, as necessary.

6. The letters EEE, followed by a number, appear on the display.

• This is an error code. To confirm, press the

Power On/Off button

to turn the N-560 off, then press the button again to turn it back
on. If the display shows the error code once again, record the
number and provide that information to qualified service
personnel, or your local Nellcor representative.

• Error Code “EEE 513" is displayed when the battery is
discharged to a critically low level. Turn the N-560 off and let it
charge for about 10 minutes and then turn the N-560 back on. If
the error code is still present, turn the N-560 off and let it
continue to charge. If the N-560 has been charged for 30 minutes
and the error code is still present, notify service personnel.

Refer to the N-560 service manual for a complete listing of error codes.

EMI (Electro-magnetic Interference)

CAUTION: This device has been tested and found to comply with the
limits for medical devices to the IEC 60601-1-2, EN60601-1-2, and the
Medical Device Directive 93/42/EEC. These limits are 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 health care
environments (for example, electrosurgical units, cellular phones, mobile
two-way radios, electrical appliances, and high-definition television), it is
possible that high levels of such interference due to close proximity or
strength of a source may result in disruption of performance of this
device.

N-560 Operator’s Manual 79

Troubleshooting

The N-560 is designed for use in environments in which the pulse can be
obscured by electromagnetic interference. During such interference,
measurements may seem inappropriate or the N-560 may not seem to
operate correctly.

Disruption may be evidenced by erratic readings, cessation of operation,
or other incorrect functioning. If this occurs, the site of use should be
surveyed to determine the source of this disruption, and the following
actions taken to eliminate the source:

• Turn equipment in the vicinity off and on to isolate the offending
equipment.

• Reorient or relocate the interfering equipment.

• Increase the separation between the interfering equipment and
this equipment.

The N-560 generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with these instructions, may cause
harmful interference with other devices in the vicinity.

If assistance is required, contact Nellcor’s Technical Services
Department, 1.800.635.5267, or your local Nellcor representative.

Obtaining Technical Assistance

For technical information and assistance, or to order parts or a service
manual, contact Nellcor’s Technical Services Department,

1.800.635.5267, or your local Nellcor representative. The service manual
includes block diagrams and a parts list required by qualified personnel
when servicing the N-560.

When calling Nellcor’s Technical Services Department, 1.800.635.5267,
or your local Nellcor representative, you may be asked to tell the
representative the software version number of your N-560.

The device version appears in the N-560 display each time the N-560
successfully completes the power-on self-test. Write the number down
and have it available whenever requesting technical assistance.

80

Troubleshooting

The most recent revision of this manual and the service manual are
available on the Internet at:

http://www.mallinckrodt.com/respiratory/resp/Serv_Supp/ProductManuals.html

N-560 Operator’s Manual 81

Troubleshooting

82

Maintenance

CAUTION: Follow local governing ordinances and recycling instructions
regarding the disposal or recycling of device components and accessories.

Returning the N-560

Contact Nellcor’s Technical Services Department, 1.800.635.5267, or
your local Nellcor representative for shipping instructions including a
Returned Goods Authorization (RGA) number. Unless otherwise
instructed by Nellcor’s Technical Services Department, it is not necessary
to return the sensor or other accessory items with the N-560. Pack the
N-560 in its original shipping carton. If the original carton is not
available, use a suitable carton with appropriate packing material to
protect it during shipping.

Return the N-560 by any shipping method that provides proof of delivery.

Maintenance

Service

WARNING: The cover should be removed only by qualified service
personnel. There are no user-serviceable parts inside.

The N-560 requires no routine service or calibration other than changing
the battery at least every 24 months. Refer to the N-560 service manual
for the battery changing procedure.

If service is necessary, contact qualified service personnel or your local
Nellcor representative.

Periodic Safety Checks

It is recommended that the following checks be performed every
24 months:

N-560 Operator’s Manual 83

Maintenance

Cleaning

• Inspect the equipment for mechanical and functional damage.

• Inspect the safety-relevant labels for legibility.

CAUTION: Do not spray, pour, or spill any liquid on the N-560, its
accessories, connectors, switches, or openings in the chassis.

For surface cleaning and disinfecting the N-560, follow your institution's
procedures or:

•The N-560 may be surface cleaned by using a soft cloth
dampened with either a commercial, nonabrasive cleaner or a
solution of 70% alcohol in water, and lightly wiping the surfaces
of the N-560.

•The N-560 may be disinfected using a soft cloth saturated with a
solution of 10% chlorine bleach in tap water.

Before attempting to clean an SpO
enclosed with the sensor. Each sensor model has cleaning instructions
specific to that sensor.

2 sensor, read the directions for use

84

Technical Information

Description of Alarms

The N-560 has three levels of audible alarms.

1. High-priority alarm: A high-pitched, fast-pulsating tone indicating

loss of pulse with no patient motion.

2. Medium-priority alarm: A medium-pitched, normal-pulsating tone

indicating an SpO

During a medium-priority alarm, the green display turns red and
flashes with the patient parameter that violated the limit (%SpO
Pulse Rate). If the alarm is a SatSeconds alarm, the SatSeconds
indicator (clock) will flash.

2 or pulse rate limit violation.

Technical Information

2 or

3. Low-priority alarm: A low-pitched, slow-pulsating tone indicating a

sensor disconnect, low battery, or N-560 failure.

During a low-battery alarm, the
and the alarm tone sounds immediately, even if the alarms are
silenced or set to OFF.

N-560 Operator’s Manual 85

Low Battery indicator illuminates

Technical Information

Factory Defaults

The N-560 is shipped with factory default settings. Authorized technical
personnel using the procedures described in the N-560 service manual can
change default settings.

Table 5: Factory Default Settings

Parameter Range

%SpO2 Upper Alarm
Limit

%SpO

2 Lower Alarm

Limit

Pulse Rate Upper Alarm
Limit

Pulse Rate Lower Alarm
Limit

Alarm Silence Reminder On or Off On

Alarm Silence Duration Off, 30, 60, 90, 120

Alarm Silence
Restrictions

Alarm Sound Selector 1, 2, 3 1

Alarm Volume 1 to 10 4

Data Port Baud Rate 2400, 9600, 19200 19200

Lower Alarm Limit plus 1
to 100%

20% to Upper Alarm
Limit minus 1

Lower Alarm Limit plus 1
to 250 bpm

30 bpm to Upper Alarm
Limit minus 1

seconds

• Audible reminder

• No audible reminder

• Do not allow alarms off

Factory Default

100%

85%

170 bpm

40 bpm

60 seconds

Audible reminder

Setting

86

Data Port Protocol 1, 2 1 (ASCII)

Display 0, 1 0 (On)

In-Sensor Trend Mode 0, 1, 2 0 (Event SpO

Language English English

Pulse Beep Volume 0 to 10 4

RS-232 Nurse Call
Priority

SatSeconds Off, 10, 25, 50, 100 Off

Normally high, normally
low

Normally low

2)

Technical Information

Table 5: Factory Default Settings (Cont.)

Silence Alarms 0, 1 1 (Off)

SatSeconds Display

When the N-560 SatSeconds technology detects an SpO2 value outside
the alarm limit, the SatSeconds indicator LEDs begin to light (fill)
clockwise. When the SpO
indicator LEDs will extinguish counterclockwise.

When all of the SatSeconds indicator LEDs are lit, indicating that the

SatSeconds setting has been reached, an audible alarm sounds and the
SatSeconds indicator LEDs flash. As with traditional alarm management,

the audible alarm may be silenced by pressing the

Note: When a SatSeconds setting other than OFF is selected, the green

LED at the top of the SatSeconds indicator will light. The green
LED indicates that SatSeconds have been engaged.

Describing SatSeconds

Parameter Range

2 value is within the set limits, the SatSeconds

Factory Default

Setting

Alarm Silence button.

With traditional alarm management, upper and lower alarm limits are set
for monitoring oxygen saturation. During monitoring, as soon as an alarm
limit is violated by as little as one percentage point, an audible alarm
immediately sounds. When the %SpO

2 level fluctuates near an alarm

limit, the alarm sounds each time the limit is violated. Such frequent
alarms can be distracting.

The N-560 utilizes Nellcor SatSeconds alarm management. With the
SatSeconds technique, upper and lower alarm limits are set in the same
way as traditional alarm management. However, the clinician also sets a
SatSeconds limit that allows monitoring of %SpO

2 below the selected

lower alarm limit and above the selected upper alarm limit for a period of
time before an audible alarm sounds.

The SatSeconds limit controls the time that the %SpO

2 level may fall

below the alarm limit before an audible alarm sounds.

N-560 Operator’s Manual 87

Technical Information

The method of calculation is as follows:

The number of percentage points that the %SpO
limit is multiplied by the number of seconds that the %SpO

2 falls outside the alarm

2 level remains

outside that limit. This can be stated as an equation:

Points x Seconds = SatSeconds

Where:

Points = SpO

Seconds = number of seconds that SpO

2 percentage points outside of the limit

2 remains at that point

outside of the limit

The alarm response time, assuming a SatSeconds limit set at 50 and a
lower alarm limit set at 90, is described and illustrated below.

In this example, the %SpO
for a period of 2 seconds (2 points x 2 seconds = 4). The %SpO

2 level drops to 88 (2 points) and remains there

2 then

drops to 86 for 3 seconds and then to 84 for 6 seconds. The resulting
SatSeconds are:

%SpO2 Seconds SatSeconds

88

2x2= 4

4x3= 12

6x6= 36

Total Sat Seconds = 52

After approximately 10.9 seconds, the SatSeconds alarm will sound,
because 50 SatSeconds will have been exceeded. See arrow (

↑) in

Figure 6.

Technical Information

Figure 6: Alarm Response with SatSeconds

Saturation levels may fluctuate rather than remaining steady for a period
of several seconds. Often, %SpO

2 levels may fluctuate above and below

the alarm limit, reentering the non-alarm range several times.

During such fluctuation, the N-560 integrates the number of %SpO

2

points, both positive and negative, until either the SatSeconds limit
(SatSeconds setting) is reached, or the %SpO

2 level returns within a

normal range and remains there.

SatSeconds “Safety Net”

The SatSeconds “Safety Net” is for patients whose saturation levels
frequently go below the limit but do not stay below the limit long enough
for the SatSeconds setting to be reached. When 3 or more limit violations
occur in 60 seconds, an alarm will sound even if the SatSeconds setting
has not been reached.

N-560 Operator’s Manual 89

Technical Information

90

Principles of Operation

Oximetry Overview

The N-560 uses pulse oximetry to measure functional oxygen saturation
in the blood. Pulse oximetry works by applying a sensor to a pulsating
arteriolar vascular bed, such as a finger or toe. The sensor contains a dual
light source and a photo detector.

Bone, tissue, pigmentation, and venous vessels normally absorb a
constant amount of light over time. The arteriolar bed normally pulsates
and absorbs variable amounts of light during the pulsations. The ratio of
light absorbed is translated into a measurement of functional oxygen
saturation (SpO

2).

Principles of Operation

Because a measurement of SpO
excessive ambient light can interfere with this measurement.

Specific information about ambient conditions, sensor application, and
patient conditions is contained throughout this manual.

Pulse oximetry is based on two principles: that oxyhemoglobin and
deoxyhemoglobin differ in their absorption of red and infrared light
(spectrophotometry), and that the volume of arterial blood in tissue (and
hence, light absorption by that blood) changes during the pulse
(plethysmography). A pulse oximeter determines SpO
and infrared light into an arteriolar bed and measuring changes in light
absorption during the pulsatile cycle. Red and infrared low-voltage
light-emitting diodes (LED) in the oximetry sensor serve as light sources;
a photo diode serves as the photo detector.

Because oxyhemoglobin and deoxyhemoglobin differ in light absorption,
the amount of red and infrared light absorbed by blood is related to
hemoglobin oxygen saturation. To identify the oxygen saturation of
arterial hemoglobin, the N-560 uses the pulsatile nature of arterial flow.
During systole, a new pulse of arterial blood enters the vascular bed, and
blood volume and light absorption increase. During diastole, blood
volume and light absorption reach their lowest point. The N-560 bases its

2 is dependent upon light from the sensor,

2 by passing red

N-560 Operator’s Manual 91

Principles of Operation

SpO

2 measurements on the difference between maximum and minimum

absorption (measurements at systole and diastole). By doing so, it focuses
on light absorption by pulsatile arterial blood, eliminating the effects of
nonpulsatile absorbers such as tissue, bone, and venous blood.

There are various matrixes within the O
to assess the severity of conditions presented to the N-560 in measuring
SpO

2 and pulse rate. These individual matrixes or combinations of these

matrixes are used to drive the LED indicators on the N-560 front panel.

During challenging measurement conditions, which could be caused by
low perfusion, interference, external interference, like ambient light, or a
combination of these, the O
amount of data required for measuring SpO
the measurement conditions. During normal measurement conditions in
the Normal response mode, the averaging time is 6 to 7 seconds. If the
resulting dynamic averaging time exceeds 20 seconds, the
indicator is continuously illuminated and SpO
every second. As measurement conditions become even more
challenging, the amount of data required continues to extend. If the
dynamic averaging time reaches 40 seconds, the
begins flashing and the SpO
indicating a loss-of-pulse condition.

Automatic Calibration

Because light absorption by hemoglobin is wavelength dependent and
because the mean wavelength of LEDs varies, an oximeter must know the
mean wavelength of the sensor's red LED to accurately measure SpO

XIMAX algorithm. Some are used

XIMAX algorithm automatically extends the

2 and pulse rate, depending on

Pulse Search

2 and pulse rate is updated

Pulse Search indicator

2 and pulse rate display flashes zeros

2.

92

During monitoring, the N-560's software selects coefficients that are
appropriate for the wavelength of that individual sensor's red LED; these
coefficients are then used to determine SpO

2.

Additionally, to compensate for differences in tissue thickness, the light
intensity of the sensor's LEDs is adjusted automatically.