Nellcor N-70 Service manual

SERVICE MANUAL

NPB-70 Handheld Capnograph

Caution: Federal law (U.S.) restricts this device to sale by or on the order of a physician.
To contact Mallinckrodt, Inc. representative: In the United States, call 1-800-635-5267: outside the United States,

call your local Mallinckrodt representative.

© 1999 Mallinckrodt Incorporated. All rights reserved. 061230A-1099

Mallinckrodt Inc.
675 McDonnell Boulevard
PO. Box 5840
St. Louis, MO 63134
Tel [phone]
Toll Free 1.800.635.5267

Nellcor Puritan Bennett
4280 Hacienda Drive
Pleasanton, CA 94588

Mallinckrodt
Europe BV
Hambakenwetering 1

‘

5231 DD

s-

Hertogenbosch

The Netherlands

Tel. [phone]

To obtain information about a warranty, if any, for this product, contact Mallinckrodt Technical Services or your local Mallinckrodt representative.

Purchase of this instrument confers no express or implied license under any Mallinckrodt patent to use the instrument with any sensor that is not
manufactured or licensed by Mallinckrodt.

Capnography covered by one or more of the following U.S. Patents and foreign equivalents: 4,755,675; 5,063,275; 5,300,859; and 5,657,750

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TABLE OF CONTENTS

List of Figures
List of Tables

Section 1: Introduction........................................................................1-1

Section 2: Required Equipment

Section 3: Cleaning

Section 4: Service Mode

Section 5: Troubleshooting

Section 6: Flow Calibration Check.....................................................6-1

Section 7: Disassembly Guide

1.1 Manual Overview...............................................................1-1

1.2 Warnings, Cautions, and Notes.........................................1-1

1.2.1 Warning..............................................................1-1

1.2.2 Caution...............................................................1-1

1.2.3 Note....................................................................1-1

1.3 Product Description ...........................................................1-2

..........................................................2-1

2.1 Required Equipment..........................................................2-1

...........................................................................3-1

3.1 Cleaning ...........................................................................3-1

3.1.1 Procedure...........................................................3-1

......................................................................4-1

4.1 Introduction........................................................................4-1

4.2 Service Level 1..................................................................4-1

4.2.1 Information Screen.............................................4-1

4.2.2 Event Messages Screen....................................4-1

4.2.3 Interface Test Screen.........................................4-2

4.2.4 Accessing Service Mode and Service Level 1...4-3

4.3 Service Level 2..................................................................4-5

4.3.1 Default Alarm Limits...........................................4-7

4.3.2 Default Settings..................................................4-8

4.3.3 Flow Calibration .................................................4-9

.................................................................5-1

5.1 Introduction........................................................................5-1

5.2 Who Should Perform Repairs............................................5-1

5.3 Repair Level Supported.....................................................5-1

5.4 How to Use This Section ...................................................5-1

5.5 Obtaining Replacement Parts............................................5-1

5.6 Troubleshooting Guide ......................................................5-2

6.1 Introduction........................................................................6-1

6.2 Flow Rate Check ...............................................................6-1

6.3 Flow Calibration Process...................................................6-2

............................................................7-1

7.1 Introduction........................................................................7-1

7.2. Opening the Handheld Capnograph Case.........................7-2

7.3 Replacing the CO

7.4 Replacing the Pump Assembly..........................................7-5

7.5 Replacing the Flow System...............................................7-6

7.5.1 Replacing the lines to the pump.........................7-7

7.5.2 Replacing the lines to the solenoid ....................7-8

7.6 Replacing LCD and 7-Segment Display..........................7-10

7.6.1 Replacing the LCD...........................................7-10

7.6.2 Replacing the 7-Segment Display....................7-10

Board ..................................................7-4

2

iii

Table of Contents

7.7 Replacing Housing Components.....................................7-11

7.7.1 ON/OFF Button and Gas outlet........................7-11

7.7.2 Keypads...........................................................7-11

7.7.3 Front Cover......................................................7-11

7.74 Rear Cover.......................................................7-11

7.8 Updating Software Version..............................................7-12

Section 8: Electrical Safety Tests.......................................................8

8.1 Electrical Safety Tests.......................................................8-1

-1

Section 9: Periodic Maintenance........................................................9-1

9.1 Periodic Maintenance........................................................9-1

Section 10: Performance Verification...............................................10-1

10.1 Flow System Leak Check................................................10-1

10.1.1 Flow System Leak Check Procedure...............10-1

10.2 Performance Verification Procedure................................10-2

Section 11: Packing For Shipment ................................................... 11-1

11.1 General Instructions.........................................................11-1

11.2 Packing Handheld Capnograph in Original Carton..........11-1

11.3 Packing in a Different Carton...........................................11-1

Section 12: Specifications

12.1 Physical .........................................................................12-1

12.1.1 Size..................................................................12-1

12.1.2 Weight..............................................................12-1

12.1.3 Noise Emission ................................................12-1

12.2 Environmental..................................................................12-1

12.2.1 Temperature.....................................................12-1

12.2.2 Relative Humidity.............................................12-1

12.2.3 Pressure and Altitude.......................................12-1

12.3 Safety Standards.............................................................12-1

12.4 Performance....................................................................12-2

12.5 Power Specifications .......................................................12-3

12.5.1 External Power Source ....................................12-3

12.5.2 Internal Power Source......................................12-3

12.6 Components and User interface......................................12-3

12.6.1 Displays............................................................12-3

12.6.2 Controls and Indicators....................................12-3

12.6.3 Connections.....................................................12-3

Section 13: Spare Parts

13.1 Spare Parts List...............................................................13-1

.................................................................12-1

.....................................................................13-1

Glossary of Terms

iv

Table of Contents

LIST OF FIGURES

LIST OF TABLES

1-1 Handheld Capnograph.......................................................1-2

1-2 LCD Screen and 7-Segment Digital Display......................1-2

7-1 Removing the Battery Pack...............................................7-2

7-2 Removing Mounting Screws..............................................7-3

7-3 Separating Rear and Front Covers....................................7-3

7-4 Replacing CO

Board and Housing Components..............7-4

2

7-5 Replacing the Pump..........................................................7-5

7-6 Flow System......................................................................7-6

7-7 Main Line...........................................................................7-7

7-8 Exhaust Line ......................................................................7-7

7-9 Lines to Solenoid (Zeo line, Input line 1, Input line 2.........7-8

7-10 Zero line.............................................................................7-9

7-11 Replacing LCD and 7-Segment Display..........................7-10

7-12 Replacing EPROM...........................................................7-12

10-1 Leak Test Jig Connection.................................................101

10-2 Initialization Screen..........................................................10-2

10-3 Measuring Mode..............................................................10-2

10-4 Quick Guide.....................................................................10-3

10-5 Connecting the monitor to Printer/PC with

Communication Adapter Kit.............................................10-7

11-1 Packing the NPB-75 in Original Packing .........................11-2

4-1 Accessing Service Mode and Changing Parameter

Settings...................................................................4-3

4-2 Accessing Service Level 2.................................................4-5

4-3 Changing Default Alarm Limits..........................................4-7

4-4 Changing Default Settings.................................................4-8

4-5 Accessing Flow Calibration................................................4-9

5-1 Troubleshooting Guide......................................................5-2

5-2 Advisory Message ............................................................5-4

5-3 Event Messages................................................................5-5

6-1 Flow Calibration.................................................................6-2

10-1 CO

Calibration Check.....................................................10-3

2

10-2 Calibration Process..........................................................10-5

10-3 Calibration Process -Troubleshooting..............................10-6

10-4 Accessing Handheld Capnograph Print Functions..........10-8

13-1 Spare Parts List...............................................................13-1

v

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SECTION 1: INTRODUCTION

1.1 Manual Overview

1.2 Warnings, Cautions, and Not es

1.3 Product Description

1.1 MANUAL OVERVIEW

This manual contains information for servicing the Handheld
Capnograph (the monito r). Only qualified service personnel sh ould

service this product. The H andheld Capnograph Oper ator’s Man ual is an
integral part of the service procedures. Before servic ing the monitor, read
the Operator’s Manual carefully for a thorough understanding of how to
operate the unit.

Only use the tools and test equipment as specified in this manual. Only
use original spare parts available from your local distributor.

Warning: Incorrect procedures may harm the patient, or damage
the monitor.

1.2 WARNINGS, CAUTIONS, AND NOTES

1.2.1 Warning

1.2.2 Caution

1.2.3 Note

A warning precedes an action that may result in injury or death to the
patient or user. Warning s are boxed and highlighted in boldface type.

A caution precedes an acti on that may result in damage to, or malf unction
of, the monitor. Cautions are highlighted in boldface type.

A note gives information that requires special attention.

1-1

Section 1: Introduction

1.3 PRODUCT DESCRIPTION

The device is a Handheld Capnograph that continuously monitors end
tidal carbon dioxide (EtCO
attended moni toring onl y and must be us ed in the contin uous pres ence o f
a qualified healthcare provider . It is intended for us e in any en vironment
where continuous, noninvasive monitoring of these parameters is desired,
including hospital and mob ile use (when protected from excessive
moisture such as direct rainfall).

The monitor is intended for use on adult, pediatric, and infant/neonatal
patients.

2) and respiratory rate. The monitor is for

Figure 1-1: Handheld Capnograph

The monitor is operated using a four-key keypad. Measurements are
displayed on the front panel on the 7-segmen t LED digital displays (LED)
and on the Liquid Crystal graphic display (LCD) as shown in Figure 1-2.

Refer to the Handheld Capnograph Operator’s Manual for complete
operating instructions.

Figure 1-2: LCD Screen and 7-Segment Digital Display

1-2

SECTION 2: REQUIRED EQUIPMENT

2.1 Required Equip ment

2.1 REQUIRED EQUIPMENT

You will need the followin g equipment to disassemble, replace parts,
check, adjust, or calibrate the monitor.

Note: For ordering spare parts, contact your local distributor.
For Disassembly and Reasssembly:

• Phillips-head screwdriver (medium)

• IC Extractor for PLCC socket

• Threadlocker glue e.g. Loctite® 222 super screw lock
For Calibration, Checks and Adju stments:

• Calibration Gas (5% CO

• FilterLine or FilterLine H

• Leak Test Jig

• Vacuum manometer wit h a range of 0-500 mBar
e.g. MPB-3200-DM, Digital Manometer MicroPneumatic Logic, Inc.

• Communication Adapter Kit (only necessary to verify print and
PC functions)

• Seiko DPU-414 printer (only necessary to verify print functions)

• External power supply

• Handheld Capnograph Operator’s Manual

• Flow Meter e.g. Top Track Mass Flow Meter,
model: 822-13-OV1-PV1-V1, Sierra Instruments, Inc.

Warning: Observe ESD (electrostatic discharge) precautions
when handling, adjusting or performing any procedure with the
monitor internal components.

2 in air)

2-1

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SECTION 3: CLEANING

3.1 Cleaning

3.1 CLEANING

Always clean the outer surface of the monitor before servicing.

Warning: Always wear latex or surgical gloves when cleaning
or servicing the Handheld Capnograph monitor after hospital
use.

Warning: Do not allow liquids to drip inside the housing.

Warning: Do not clean internal components.

Warning: Do not use cleaning materials based on: phenols,
halogen producing compounds, strong organic acids, or oxygen
producing compounds.

3.1.1 Procedure

1. Unplug the unit from AC mains supply.

2. With a damp cloth, gently wipe the outer case of the monitor with

a disinfectant basd on aldheyde, alcohol o r quaternary a mmonium
producing c ompounds.

3-1

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SECTION 4: SERVICE MODE

4.1 Introduction

4.2 Service Level 1

4.3 Service Level 2

4.1 INTRODUCTION

The monitor supports a service mode built into the instrument’s firmware.
The architecture of the monitor’s service mode divides the service mode
into two levels as described in the sections below.

• Service Level 1

• Service Level 2

To access the service mode ( levels 1 and 2), refer to Tables 4-1 and 4-2.

4.2 SERVICE LEVEL 1

The Service Level 1 provides information and tools on three service
screens to test and calibra te spec ific f unc tion s withou t disa ssemb li ng the
monitor.

• Information Screen

• Event Messages Screen

• Interface Test Screen

From these display screens the service techni cian can check the operating
hours counter and event messages, test the Human Interface functions
(HMI), set the light detection threshold, adju st the LCD contrast middle
point and do a calibration chec k and a calibration process, if necessary.
Refer to Table 4-1.

4.2.1 Information Screen

The information screen displays the monitor’s serial
CO

2 board number, the number of operating hours, and the

CO

2 board’s software version.

4.2.2 Event Messages Screen

The monitor automatically performs a series of built-in tests (BITs) at
start-up and during operation to check sub-systems and modules for
errors. The event messages screen lists the last five event messages, the
time each occurred relative to the unit’s operating hours, and a
recommended service action. There are two event messages an d each has
a specific response as follows:

Event Message: Action:

CO

2 board Replace CO2 board

Flow Replace Flow System and/or Pump

Refer to Section 5: Troubleshooting

4-1

Section 4: Service Mode

Note: To exit the service mode and save event messages, turn off the

4.2.3 Interface Test Screen

The interface test screen shows four parameters (listed below) that

provide tools for the user to test, adjust, an d ca librate the unit’s
interfacing systems.

•HMI Test

• Light Detector

• Contrast Cal. (Calibration)

monitor. Event messages will be erased when exiting the service
mode by a long press of .

•CO

2 Calib. (Calibration)

4.2.3.1 HMI Test

When the HMI Te s t is turned on, the monitor performs a self-test of the
following sub-systems:

• Buzzer (sounds for one second)

• LCD graphic screen shows a checkerboard pattern

• 7-segment digital display (8s scroll left to right )

• Alarm bar (lights red, yellow, off)

• Backlight (turns on and off)

• Alarm silence indicator (light turns on and off)
When the HMI test is completed the status field returns automatically to

“OFF”.

4.2.3.2 Light Detector

The Light Detector parameter allows the service technician to set the
threshold value of the phototransistor. Th e default value is 1 and the
range is from 1 to 5 with 1 as the most sensitiv e (backlight on at all times)
and 5 as the least sensitive (backlight off). The threshold value should be
set according to the lighting conditions of the working enviroment. A
higher threshold value saves on battery power consumption.

4-2

Note: When the monitor’s power management is set to Low, the backlight

is off.

Section 4: Service Mode

4.2.3.3 Contrast Cal. (calibration)

The Contrast Cal. gives the service technician the option to change the
middle point default value of the contrast intensity of the LCD.

Table 4-1 describes how to change the contrast cal. settings.

4.2.3.4 CO

The CO

2 Calib. (calibration)

2 Calib. allows the service technician to perform a calibration

check and calibration process to ensure the accuracy of the monitor.
Section 10: Performance Verification describes the calibration check and
calibration process procedure.

4.2.4 Accessing Service Mode and Service Level 1.

Table 4-1 describes how to access the service mode, change parameter
settings and how to change Contrast Cal. settings.

Table 4-1: Accessing Service Mode and

Objective Action Response

To access Service Mode During self-test,

press and hold
simultaneously

Changing Parameter Settings

Self-test occurs and the
Information Screen
appears:

and

To access Event
Messages

To access Interface
Test Screen

To change the
parameter setting or
value

long press

long press

short press

4-3

Section 4: Service Mode

Table 4-1: Accessing Service Mode and

Changing Parameter Settings (Continued)

To move to the next

short press
parameter (moving to
the next parameter
accepts and save s
changed values)

To change Contrast

short press
Cal. setting to set

To start Contrast Cal. short press “Contrast Cal.” flashes.

To Adjust Contrast
Cal. middle point

press

Screen lightens or
darkens

until desired
setting is reached.
(Pressing on the left
lightens the screen,
and pressing on the
right darkens the
screen.)

To accept new setting short press

4-4

To reset and return to
measuring mode
(automatically erasing
the event messages
memory)

To exit service mode
from any service
screen without erasing
the event messages
memory

long press

Turn off the
monitor

4.3 SERVICE LEVEL 2

Section 4: Service Mode

The Service Level 2 gives the service technician tools on three service
screens:

• Default Alarm Limits

• Default Settings

• Flow Calibration
To access this service level, the service technician must enter a valid

password (1627), refer to Table 4-2.
Note: The password should not be disclosed to avoid unauthorized setting

of parameters.

Table 4-2: Accessing Service Level 2

Objective Action Response

To access Service
Level 2

Enter Password: 1627
Enter the 1st digit short press (right)

Move to the next digit short press

After entering the
service mode

long press x3

x1

Pressing on the
right arrow scrolls
the numbers up,
the left arrow
scrolls the numbers
down.

Password Screen
appears

Enter the 2nd digit short press (right)

x6

Repeat the same procedure as above for the next two digits (2, 7).

4-5

Section 4: Service Mode

Table 4-2: Accessing Service Level 2 (Continued)

Objective Action Response

To access the Alarm
Limits Menu after
entering last password
digit

In case you entered a
wrong digit

To restart password
validation process

To reset and return to
measuring mode
(automatically erasing
event messages)

short press

long press

long press

To exit service mode
and save event
messages

Turn off the
monitor.

4-6

4.3.1 Default Alarm Limits

The service technician can change the default alarm limits for either
patient mode (Adult or Neonatal).

The monitor has the follow ing alarms with adjustable level settings:

Section 4: Service Mode

• EtCO

•FiCO

2 high and low levels (mmHg)

2 high level (mmHg)

Refer to Table 4-3 for changing the settings of the above mentioned
parameters.

Warning: Changing default settings will permanently change the

user’s start up value and should be verified with the responsible
clinical personnel.

Table 4-3: Changing Default Alarm Limits

Objective Action Response

To access the Alarm

short press
Limits Menu after
entering last password
digit

To change the pati ent

short press
mode

To access a new

short press
parameter

To change the value short press

To reset and return to

long press

measuring mode

To exit service mode
and save event

Turn off the

monitor.

messages

4-7

Section 4: Service Mode

4.3.2 Default Settings

The service technician can change two default settings (refer to Table 4-4):

• 3 Min Alert

• BTPS (body temperature, pressure, saturation)
When the 3 min Alert is ON, the unit will beep every three minutes to

remind the user that an alarm (or all alarms) are set to OFF.
When BTPS is ON, the CO

Table 4-4: Changing Default Settings

Objective Action Response

To access the Default
Settings Menu (after
accessing the Alarm
Limits Menu)

To change the setting short press

To access BTPS
parameter (and save
the changed setting)

2 value is corrected for this factor.

long press

short press

4-8

To reset and return to
measuring mode

To exit service mode
and save event
messages

long press

Turn off the
monitor.

4.3.3 Flow Calibration

Section 4: Service Mode

The Flow Calibration screen allo ws the service technician to perform flow
calibration after flow ad justment and/or pump or flow system
replacement, refer to Table 4-5.

Table 4-5: Accessing Flow Calibration

Objective Action Response

To access the Flow
Calibration screen

To change the
parameter setting or
value

To move to the next
parameter (and save
the changed setting)

At any screen after
the password
long press
simultaneo u sly

and

short press

short press

4-9

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SECTION 5: TROUBLESHOOTING

5.1 Introduction

5.2 Who Should Perform Repairs

5.3 Repair Level Supported

5.4 How to Use This Section

5.5 Obtaining Replacement Parts

5.6 Troubleshooting Guide

5.1 INTRODUCTION

This section provides information f or troubleshooting for the monitor
isolating a failure of the monitor.

5.2 WHO SHOULD PERFORM R EPAIRS

Only qualified service personnel should remove and replace components
of the monitor. If your facility does not have qualified service personnel,
contact your local distributor.

5.3 REPAIR LEVEL SUPPORTED

The monitor has the following replaceable components: CO2 board, Flow
System, Pump Assembly, Housing Components, LCD, 7-segment displays
and Software Assembly.

The procedures for disassembling and replacing the above mentioned
components are described in Section 7: Disassembly Guide.

5.4 HOW TO USE THIS SECTION

Failures of the Housing Compon ents; front cover, rear cover, gas outlet,
ON/OFF button and keypads, a re determined by visually i nspecting these
components for cracks or deformations, and checking for mechanical
failures.

Use the Troubleshooting Guide in Section 5.6 to isolate failures of the CO
board, Flow System, Pu mp Assembly, LCD and 7- segment displa ys. Once
a failure has been isolated, refer to Section 7: Disassembly Guide for
instructions for removing and replacing a component of the monitor.

5.5 OBTAINING REPLACEMENT PARTS

Your local distributor provides technical assistance informatio n and
replacement parts. Refer to parts by the part name listed in Section 13:
Spare Parts.

2

5-1

Section 5: Troubleshooting

5.6 TROUBLESHOOTING GUIDE

If you encounter a problem that cannot be resolved through a visual
inspection, refer to Table 5-1 which provides a list of symptoms, pr obable
causes, and recommended actions to correct the proble m. It is
recommended that corrective actions be performed in the order presented.
For a symptom that is not listed in Table 5-1, contact your local
distributor.

If an Advisory mess age is displaye d on th e LCD, ref er to Table 5-2 for the
indicated failure and corrective action. Caution messages appear on the
display screen followed by !! and Advisory messages are followed by !.

Check in the Service Mode for any Event Messages and refer to Table 5-3
for the indicated failure and corrective action.

Symptom Probable Cause Corrective Action

Table 5-1: Troubleshooting Guide

The unit does not
turn on when the
ON/OFF button
is switched
when the unit is
operated with
batteries.

The unit does not
turn on when the
ON/OFF button
is switched
when the
monitor is
connected to
mains power.

ON

ON

The battery pack is
missing or is installed
incorrectly.

The battery pack’s
charge is low.

The battery pack’s
contacts are defective.

The contacts for the
battery pack on the

are defective or a

board

CO2

CO2 board component

has failed.
The ON/OFF button has

a mechanical defect.

Check if there is a
battery pack in the
monitor, if not, place
one in the monitor. Be
sure the battery pack
is installed correctly.

Install a fully charged
battery pack; charge
the empty battery
pack.

Install a new battery
pack and check the
monitor functions.

Connect the monitor
to mains line power
and if the monitor
functions, repla c e the
CO

2 board.

Inspect the button for
cracks, deformations
or other damage.
Replace with a new
button.

5-2

A CO

2 boa rd com ponent

has failed.

Replace with a new

2 board.

CO

Section 5: Troubleshooting

Table 5-1: Troubleshooting Guide (Continued)

Symptom Probable Cause Corrective Action

The unit does not
turn on when the
ON/OFF button
is switched

ON

when the
monitor is
connected to
mains power.

One or more
buttons on the
upper or lower
keypad do not
work.

No information
is displayed on
the LCD.

The wall socket is not
receiving power or is
defective.

Check the wall socket
for power supply or
mechanical defects. If
necessary, use a
different wall socket.

The AC adapter is
defective.

A CO

2 boa rd com ponent

has failed.

Replace with new AC
adapter.

Replace with a new

2 board.

CO

The keypad is defective. Inspect the keypad for

cracks, deformations
or other damage.
Replace with a new
keypad.

A CO

2 boa rd com ponent

has failed.
The contrast default

value is set too lo w or
high.

Replace with a new

2 board.

CO
Check the contrast

value in the Service
Mode using the

Contrast Cal. option

and correct
accordingly.

LCD Backlight
does not come on
when the
monitor is placed
in a dark
environment.

An LCD component has
failed.

2 boa rd com ponent

A CO
has failed.

The Power
Management option is
set at

LOW.

An LCD component has
failed.

A CO

2 boa rd com ponent

has failed.

Replace with a new
LCD.

Replace with a new
CO

2 board.

Refer to the Handheld
Capnograph
Operator’s manual to

change the Power
Management option
to

NORMAL or

HIGH.

Replace with a new
LCD.

Replace with a new

2 board.

CO

5-3

Section 5: Troubleshooting

Table 5-1: Troubleshooting Guide (Continued)

Symptom Probable Cause Corrective Action

7-Segment
Display does not
light when the
unit is
functioning.

Beeper does not
beep.

The Power
Management option is
set at

LOW.

A 7-Segment display
has failed.

A CO

2 boa rd com ponent

has failed.
One or more of the

Alarm Silence options
has been turned OFF.

2 component has

A CO
failed.

Refer to the Handheld
Capnograph
Operator’s manual to

change the Power
Management option
to

NORMAL or

HIGH.

Replace with new 7­Segment display.

Replace with a new

2 board.

CO
Turn the respective

alarm

ON. Refer to

the Handheld
Capnograph
Operator’s manual.

Replace with a new
CO

2 board.

Table 5-2: Advisory Message

Message Probable Cause Corrective Action

Check Unit

! A CO2 boar d comp onent

has failed.

Check Event
Messages screen in
Service Mode.

5-4

Section 5: Troubleshooting

Table 5-3: Event Messages

Event Message Probable Cause Corrective Action

CO

2 board

- Component Failed

Flow - Loose connections

- Kinks or twists in
tubing

- Flow system blocked

- Pump Malfunction - Replace pump

- A CO

2 board

component has failed

- Replace CO2 board

- Inspect all tubing
ends for loose
connections and
ensure tight
connections

- Straighten kinks
and undo any twists
in the tubing.

- Check flow rate and
if necessary change
Flow System, refer
to Section 6: Flow

Calibration Check

- Replace with a new

2 board

CO

5-5

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SECTION 6: FLOW CALIBRATION CHECK

6.1 Introduction

6.2 Flow Rate Check

6.3 Flow Calibration Process

6.1 INTRODUCTION

Perform a Flow Calibration Chec k after replacing the Flow System and/or
Pump. Flow Calibration Check includes Flow Rate Check and Flow
Calibration Process.

6.2 FLOW RATE CHECK

To perform the Flow Rate Check, follow the steps below:

1. Connect the FilterLine to the Handheld Capnogr aph.

2. Turn on the monitor.

3. Connect the other end of the FilterLine to the Flow meter gas
outlet.

4. Access the Flow Calibration screen of the Service Mode, refer to
Section 4.3.3: Flow Calibration.

5. Check that the Flow Meter reading is 50 ±5 ml/min. (at sea level)

If the Flow Meter reading is 50 ±5 ml/min:
5a Perform Flow Calibration Process, refer to Section 6.3: Flow

Calibration Process.
If the Flow Meter reading is not 50 ±5 ml/min:
5b Change the pump voltage value until the flow rate displayed

in the flow meter is 50 ±5 ml/min, refer to Section 4: Service

Mode, Table 4-5: Accessing Flow Calibration.

5c Perform Flow Rate Check
5d Perform Flow Calibration Process.
If you cannot set the flow rate to 50 ±5 ml/min after adjusting the

pump voltage value:
5e Change the Flow System, refer to Section 7.5: Replacing the

Flow System.
5f Perform Flow Rate Check
5g Perform Flow Calibration Proc ess.
If after changing the Flow System you still cannot set the flow rate

display in the flow meter to 50 ±5 ml/min:
5h Change the Pump, refer to Section 7.4: Replacing the Pump.

5i Perform Flow Rate Check
5j Perform Flow Calibration Process.

6-1

Section 6: Flow Calibration Check

6.3 FLOW CALIBRATION PROCESS

To perform the Flow Calibration Process, refer to Table 6-1.

Objective Action Response

Table 6-1: Flow Calibration

To access Flow
Calibration screen

Simultaneously
long press

and

To select Flow Cal. short press

To start Calibration short press

short press

6-2

Wait until either a Fail or Pass message is displayed
If FAIL is displayed Replace Flow

System and/or
Pump
(refer to Section 5:
Troubleshooting)
and repeat above
procedure

If PASS is displayed Exit Service Mode

Section 6: Flow Calibration Check

Table 6-1: Flow Calibration(Continued)

Objective Action Response

To reset and return to
measuring mode

To exit service mode
and save event
messages

long press

Turn off the
monitor

6-3

[This page intentionally left blank]

SECTION 7: DISASSEMBLY GUIDE

7.1 Introduction

7.2 Opening the Handheld Capnograph Case

7.3 Replacing the CO

7.4 Replacing the Pump As se m b ly

7.5 Replacing the Flowing System

7.6 Replacing the LCD and 7-Segment Display

7.7 Replacing the Housing Components

7.8 Updating the Software Version

7.1 INTRODUCTION

The monitor can be disassembled and the following components can be
replaced:

2 Board

•CO

• Pump Assembly

•Flow System

• Housing components

• EPROM

• Liquid Crystal Display (LCD)

• 7-segment displays

Caution: Observe ESD (electrostatic discharge) precautions when
disassembling and reassembling the moni tor a nd when handli ng
any of its components.

Use the following procedures to disassemble the monitor and replace
parts as needed. Reassemble the monitor in reverse order. The
manufacturer recommends that you follow the disassembly procedure in
the order p r esented.

Note: After replacing the Flow System and/or Pump, perform a flow

Note: After reassembling any part of the monitor, be sure to complete the

2 board

calibration check as described in Section 6:

performance verification as described in Section 10: Performance
Verification.

Flow Calibration Check.

7-1

Section 7: Disassembly Guide

7.2 OPENING THE HANDHELD CAPNOGRAPH CASE

1. Be sure the monitor is disconnected from mains power and remove
the battery pack from the monitor; push the release button at the
bottom of the monitor and pull out the battery pack as shown in
Figure 7-1.

7-2

Figure 7-1: Removing the Battery Pack

Section 7: Disassembly Guide

2. Place the monitor on a clean, dry nonabrasive su rface with the back
of the monitor facing up.

3. Remove the two bottom and two back mounting screws from the
rear panel of the monitor as sh own in Figure 7-2.

Figure 7-2: Removing Mounting Screws

4. Carefully lift the rear case cover up as shown in Figure 7-3.

Figure 7-3: Separating Rear and Front Covers

7-3

Section 7: Disassembly Guide

7.3 REPLACING THE CO2 BOARD

1. Open the monitor case as de scribed in Section 7.2.

2. Remove the two CO

3. Remove the CO

2 board mounting screws.

2 connector screw from the CO2 input connector.

4. Remove the ON-OFF button and save for reassembly.

5. Remove the gas outlet from the tubing and save for reassembly.

6. Remove the CO

2 board and replace with a new CO2 board and

reassemble in reverse order .

Warning: The scrubber on the CO

2 board is a lithium based

compound. Follow local governing ordinances for disposal.

7-4

Figure 7-4: Replacing CO2 Board and Housing Components

7.4 REPLACING THE PUMP (REFER TO FIGURE 7-5)

1. Open the monitor case de scribed in Section 7.2.

2. Remove the damping cover from the pump.

3. Locate the two tubings, Main line and Exhaust line, connected to
the pump, refer to Figure 7-6.

4. Locate the purple Main line restrictor and the green Exhaust line
restrictor.

5. Disconnect both tubings from their restrictors.

Note: Both restrictors must remain with their flow system lin es attached

to the CO

2 board.

Section 7: Disassembly Guide

6. Disconnect the pump connector from it’s CO

7. Remov e the CO

2 board from the front cover, refer to Section 7.3.

2 board socket.

8. Unscrew and remove the pump mounting screws.

9. Remove the lower damping and damping holder.

10. Remove the pump and the upper damping .

11. Place the new Pump.

12. Reassemble the unit, using the new assembly parts, in reverse
order.

Note: Before replacing the pump mounting screws, first dip them into

Loctite

®

glue or any other threadlocker glue. Carefully twist the
screws into the lower damping, gently pressing against the
CO

2 board..

Figure 7-5: Replacing the Pump

7-5

Section 7: Disassembly Guide

7.5 REPLACING THE FLOW SY STEM

1. Open the monitor case as de scribed in Section 7.2.
The Flow System has 5 lines, refer to Figure 7-6.
Two lines go from the pump:

• M ai n li ne

•Exhaust line
Three lines go from the solenoid :

•Zero line

• Input Line1

• Input Line2

7-6

Figure 7-6: Flow System

7.5.1 Replacing the lines to the pump

7.5.1.1 Replacing the Main line (Refer to Figure 7-7)

1. Locate the purple restrictor.

2. Carefully disconnect the main line from the tubing
connected to the pump, leaving the purple restrictor in the main
line.

Section 7: Disassembly Guide

3. Remove the tubing from the CO

2

sensor.

4. Remove the tubing from the pressure sensor.

Note: When replacing the main line, in order to fit the main line on the

board without twists and kinks, coil

the tubing around the

pressure sensor (refer to Figu re 7-8).

5. Reassemble the new Main line in reverse order.

Figure 7-7: Main line

7.5.1.2 Replacing the Exhaust line (Refer to Figure 7-8)

1. Locate the green restrictor.

2. Carefully disconnect the Exhaust line, at the green restrictor,
from the tubing connected to the pump. Leave the green
restrictor in the exhaust line.

3. Reassemble the new Exhaust line in reverse order.

Figure 7-8: Exhaust line

7-7

Section 7: Disassembly Guide

7.5.2 Replacing the lines to the solenoid (Refer to Figure 7-9)

7.5.2.1 Removing lines to the solenoi d

1. Carefully disconnect the Zero line from the solenoid.

Warning: The scrubber on the Zero line is a lithium based
compound. Follow local governing ordinances for disposal.

2. Remove Input line 1 from the solenoid and the other end from
the FilterLine input connector.

3. Remove Input line 2 from the solenoid and the other end from
the sensor connector.

Figure 7-9: Lines to Solenoid (Zero line, Input line 1, Input line 2)

7-8

Section 7: Disassembly Guide

7.5.2.2 Reassembly of the new solenoid lines.

1. Attach the new Input line1 to the upper solenoid connector.

2. Locate the lower solenoid connector which is closest to the
sensor and attach the new Input line 2 to this connector.

3. Bring the Input line 2 tubing over Input line 1, and attach to the
sensor connector.

4. Lead the Input line 1 under the FRS cables (connected to the
FilterLine input connector, not viewed in Figure 7-9) and
connect to the FilterLine input tubing connector.

5. Connect the Zeroline to its sole noi d connector and place the
scrubber close to the pump under the coiled main line tubing,
refer to Figure. 7-10.

Figure 7-10: Zero line

7-9

Section 7: Disassembly Guide

7.6 REPLACING LCD AND 7-SEGMENT DISPLAY (REFER TO FIGURE 7-11)

7.6.1 Replacing the LCD

1. Remove the CO2 board as described in 7.3.

2. Unscrew and remove the four LCD mounting screws.

3. Carefully remove the LCD and replace with a new LCD.

7.6.2 Replacing the 7-Segment Display

1. Remove the CO2 board as described in Section 7. 3.

2. Carefully remove the faulty 7-segment display from its socket and
replace with a new 7-segment display. Note the correct
orientation of the 7-segment display when replacing it.

7-10

Figure 7-11: Replacing LCD and 7-Segment Display

7.7 REPLACING HOUSING COMPONENTS

The Housing kit includes the following replaceable components:

• Front cover

• Rear cover

•ON/OFF switch

• Upper Keypad (Alarm silence button and Contrast/Value change
button)

• Lower Keypad (Print/Home button and Next/Menu button)

• Gas outlet

•Screws

•Washers

Note: When reassembling the monitor after replacing any part, be sure to

follow the disassembly steps in reverse order.

7.7.1 ON/OFF Button and Gas Outlet (Figure 7-4)

1. Open the monitor as described in Section 7.2.

2. Remove the gas outlet from the tubing and replace with a new gas

outlet.

Section 7: Disassembly Guide

3. Remove the ON/OFF button from the CO

Section 7.3 and replace with a n ew button.

7.7.2 Keypads (Figure 7-4)

1. Open the monitor as described in Section 7.2.

2. Remove the CO

3. Remove the old keypad. When replacing the new keypad, be sure

the icons are facing the correct direction, refer to
Figure 1-1.

7.7.3 Front Cover (Figure 7-4)

1. Open the monitor as described in Section 7.2.

2. Remove the CO

3. Remove the keypad and ON/OFF button. Place them in the new

front cover. When replacing the keypad, be sure the icons are fac­ing the correct direction, refer to Figure 1-1.

4. Place the CO

7.7.4 Rear Cover (Figure 7-3)

1. To replace the rear cover, open the monitor as described in

Section 7.2. and replace the old rear cover with a new rear cover.

2 board as described in

2 board as described in Section 7.3.

2 board as described in Section 7.3.

2 board in the new cover.

7-11

Section 7: Disassembly Guide

7.8 UPDATING SOFTWARE VERSION

Caution: Observe ESD (electrostatic discharge) precautions when
disassembling and reassembling the monitor and when handling
any of the components of the monitor.

1. Open the monitor as described in Section 7.2.

2. Remove the EPROM from its socket (on the CO

2 board) using an IC

extractor, refer to Figure 7-12.

3. Insert the new EPROM.
Note: When replacing the EPROM, be sure it is positioned correctly.
Note: When operating the monitor for the first time after updating the

software version, the warm-up and the self-test periods will be
longer than usual.

7-12

Figure 7-12: Replacing EPROM

SECTION 8: ELECTRICAL SAFETY TESTS

8.1 Electrical Safety Tests

8.1 ELECTRICAL SAFETY TESTS

Do not return the monitor to the user until the conditions in the following

“Warning” statement are met.

Warning: After servicing the monitor, always verify product
performance per the procedures in Section 10: Performance
Verification and perform any safety tests required by local
regulatory bodies or mandated by your institution.

8-1

[This page intentionally left blank]

SECTION 9: PERIODIC MAINTENANCE

9.1 Periodic Maintenance

9.1 PERIODIC MAINTENANCE

Periodic maintenan ce is recommended according to ope rating hours (r efer
to section 4.2 "Service Level 1"):

The Pump and Flow System should be replaced every 7,000 operating
hours.

For replacing the pump, refer to section 7.5 "Replacing the Pump".
For replacing the flow system, refer to section 7.6 "Replacing the Flow

System".
The monitor should be returned to the manufacturer for periodic

maintenance every 14,000 operating hours.

9-1

[This page intentionally left blank]

SECTION 10: PERFORMANCE VERIFICATION

10.1 Flow System Leak Check

10.2 Performance Verification Procedure

The performance of the monitor must be verified after all service procedures. Perform all
procedures in this section to verify the correct functioning of the monitor.

10.1 FLOW SYSTEM LEAK CHECK

Perform the Flow System Leak Check after all service procedures
described in this manual.

10.1.1 Flow System Leak Check Procedure

1. Connect the vacuum manometer to the Leak Test Jig as shown in

Figure 10-1.

Figure 10-1: Leak Test Jig Connection

2. Open the Leak Test Jig clamp and empty the syringe’s contents.

3. Connect the open-ended tubing ( as shown in Figure 10-1) of the

Leak Test Jig to the Gas Outlet of the monitor.

4. Connect the other open-ended tubing of the Leak Test Jig to the

CO

input connector.

2

5. Pull the syringe valve out until the pressu re drops (as displayed on

the vacuum manometer) to approximately -300 mBar (or
equivalent) and close the clamp.

6. Wait 30 seconds.

7. The change in reading should be less tha n 20 mBar (or equi val ent).

10-1

Section 10: Performance Verification

8. If the reading drops more than 20 mBar, there is a leak in the flow

system.

•Open the unit.

• Check for loose fittings and if any are found, reconnect
them.

• Repeat the above process (steps 1-7).

• If the readin g continues to show a drop of more than 20

mBar, replace the Flow System, refer to Section 7-5.

10.2 PERFORMANCE VERIFICATION PROCEDURE

Verify the performance of the monitor using the following procedure.

1. Connect the monitor to mains supply using the AC adapter.

2. Connect the FilterLine to the monitor.

3. Turn ON the monitor.

4. The Initialization Screen appears and the
Self-Test bar fills, refer to Figure 10-2.

5. Verify that an audio tone sounds. This
verifies proper operation of the Alarm
interfacing. Check that the LEDs on the

Figure 10-2:

Initialization Screen

alarm bar turn red, yellow and th en off. The
7-segment display shows 8s moving from
left to right.

6. After initialization, the monitor
automatically goes to Measuring Mode. The
message CO

2 Warmup appears on the Silent

Advisory Message area, refer to
Figure 10-3.

7. After CO
changes to Ready.

2 Warmup, verify that the message

Figure 10-3: Measuring

Mode

Note: If BTPS is on, then the message will read BTPS ON-Ready.

8. Disconnect the FilterLine and verify that the message FilterLine
is displayed on the Silent Advisory Message Area and verify that
the pump stops.

9. Reconnect the FilterLine and verify that the message FilterLine
disappears and the pump is operating.

10-2

Section 10: Performance Verification

10. Verify that all buttons on the unit work properly. Refer to the
Quick Guide for their applicati ons, see Figure 10-4.

Power On

Short Press

Changes Displays /
Selects Par a me ters

Event Mark

Changes
Values / Contrast

Sound ON / OFF

Long Press

Accesses
Menus

Home /
Erase Trend

Quick Scroll

Accesses
Alarm Menu

Data Trans fe r

ON / OFF

Figure 10-4: Quick Guide

11. Verify the CO

2 Calibration Check process functions. Fol low the

procedure as described below. When completed, return to the
Measuring Mode screen.

CO

2 Calibration Check

Caution: Do not check CO

2 values from the measurin g mode if th e

BTPS setting is ON (factory default). This mode corrects the CO
value for BTPS. The calibration check mode disables this
correction.

In order to ensure accuracy, a CO

2 calibration check nee ds to be done once

a year. Calibration gas and a FilterLine are needed for this procedure.
Start the process from the Interface Test Screen (refer to Table 4-2) as
follows in Table 10-1.

2

Note: Connect the FilterLine to the monitor be fore starting CO

Table 10-1: CO2 Calibration Check

Objective Action Result

Access CO

2

short press (x3)

Calib.

Change option

short press

to start.

2 Calibration Check.

10-3

Section 10: Performance Verification

Table 10-1: CO

2 Calibration Check (Continued)

Objective Action Result

Start Check

short press
Cal. An
Autozero
process
automatically
occurs.

Autozero is
complete;

“Connect Gas”
is displayed.

1. Wait 20
minutes to
reach steady
state of
temperature.

2. Connect the
FilterLine to
calibration
gas.

Check the
measured
values shown in
Vol% in the
EtCO

2 digital

Press the gas
valve for 15
seconds until
the readings
stabilize.

display.

PLQ

Calibration is not required if the measured value is the
same as the concentration of the calibration gas (±0.5%)
e.g. Concentration of calibration gas used is 5% (CO

2); the

measured value should be between 4.8%-5.2%, therefore,
calibration is not required.

To reset and

long press
return to
measuring
mode

To exit service
mode and save

Turn off the
monitor.

event messages

If the reading is outside these limits, calibration is
required. Refer to Table 10-2 for the calibration process
procedure.

10-4

Section 10: Performance Verification

Calibration Process

If calibration is required, perform the Calibration Process (after
performing Calibratio n Check) as shown in Table 10-2

Note: The manufacturer recommends using calibration gas, 5% CO

air.

Table 10-2: Calibration Process

Objective Action Result

To start
Calibration

No action
required.

PLQ

Process after
calibration check.

To activate

long press
Calibration
Process.

To adjust the

short press
display value to
the gas
concentration you
are using.

2 in

To start
calibration.

Monitor performs
an internal
calculation.

Calibration
succeeded.

Return to
calibration check
mode.

Press the gas
valve and
long press

Continue
pressing the
gas valve until

the “Disconnect
Gas” appears.

Disconnect Gas
from the
FilterLine.

No action
required.

long press

10-5

Section 10: Performance Verification

Objective Action Result

Table 10-2: Calibration Process (Continued)

To reset and
return to
measuring mode

To exit service
mode and save
event messages

long press

Turn off the
monitor.

Calibration Errors

Table 10-3 describes calibration problems that can occur, the message
displayed and the corrective action.

Table 10-3: Calibration Process - Troubleshooting

Message Possible Causes Action

• Gas concentra tion
does not match the
concentration value
selected in the first
calibration screen.

• Problems wi th gas
sampling

•Flow system
problems (purging,
blockage or no
FilterLine)

Check setup,
correct
probable
causes, and
recalibrate
unit as
above.

10-6

•CO

2 Sensor problem

• Calibration process
exceeds 3 minutes

•Contact
your local
distributor.

•Restart. If
the
problem
persists,
contact
your local
distributor.

12. Disconnect the monitor from the AC mains supply. Verify the unit
continues to work from its ba ttery pack and the battery icon appear s
on the lower right corner of the display.

13. Reconnect the monitor to mains power with the AC adapter. Verify

that the unit functions, and the plug icon appears.
Note: If the battery pack has a l ow charge level, the battery i con will

appear instead of the plug. The battery icon will fill indicating the
battery charging process.

Section 10: Performance Verification

To verify printing functions:

14. Adjust the printer to the following communication settings:
Input Serial
Data Length 8 bits
Parity Settings None
Baud 9600 bps

15. Using the Communication Adapter Kit, connect the printer to the
monitor, refer to Figure: 10-5.

Figure 10-5: Connecting the monitor to Printer/PC with

Communication Adapter Kit

16. Turn the printer ON and select on-line mode.

10-7

Section 10: Performance Verification

17. Access the monitor print functions as d escribed in Ta ble 10 -4 below:

Table 10-4: Accessing Handheld Capnograph Print Functions

Objective Action Result

To access the
Instrument Setup
menu (first access
the Alarm Limits
menu from any
measuring display)

To select Print short press (x2)

Be sure the Print
option shows

long press (x2)

short press

Screen; if it doesn’t,

change to the
option

To return to
Measuring Mode

Screen

long press

To print long press

simultaneo usly

and

(printout)

10-8

SECTION 11: PACKING FOR SHIPMENT

11.1 General Instructions

11.2 Packing Handheld Capnograph in Original Carton

11.3 Packing in a Different Carton

11.1 GENERAL INSTRUCTIONS

To ship a monitor or one of its compo nents for any reason, follow the
instructions in this section. Failure to follow the instructions in this
section may result in loss or damage not covered by any applicable
manufacturer warranty.

Pack the monitor or co mponent(s) carefully. If available, use the original

carton and packing materials and follow the instructions in “Packing
monitor in Original Carton. ” If th e ori ginal sh ipp ing carton and mate rial
are not available, u se other suitable shi pping materials an d container and
follow the instructions in “Packing in a Different Carton.”

Prior to shipping the monitor or a component, contact your local
representative for a Returned Material Authorization (RMA) number.
Mark the shipping carton and any shipping forms with the RMA and the
monitor’s seria l number.

Caution: Observe ESD (elect rostatic discharge) precautions when
packing any monitor components.

11.2 PACKING HANDHELD CAPNOGRAPH IN ORIGINAL CARTON

If the original carton and packing material are available, repack the
monitor as follows. (Refer to Figure 11-1.)

1. Place the unit in a plastic bag. Place it into the co rresponding

space, in the original foa m padding, wi th th e fron t panel fa cin g up.

2. Place the foam padding cover over the top of the unit.

3. Seal the carton with packing tape.

4. Label the carton with the correct shipping address, return address

and RMA number.

11.1 PACKING IN A DIFFERENT CARTON

If the original carton and packing materi al are not available or if shipping
any monitor component not in its original carton:

1. Place the monitor in a plastic bag or component in a plastic anti-

static bag.

2. Locate a corrugated cardboard shipping carton (approximately the

size of the monitor or component) with at least 200 pounds per
square inch (psi) bursting strength.

3. Fill the bottom of the carton with at least 2 inches of packing

material.

11-1

Section 11: Packing For Shipment

4. Place the bagged monitor or component on the layer of packing

5. Seal the carton with packing tape.

6. Label carton with shipping address, return address and RMA

material and fill the box completely with packing material such
that there is at least 2 inches of packi ng material around all sides
of the item.

number.

Top padding

Plastic bag

Handheld Capnograph

Foam padding

Shipping Carton

Figure 11-1: Packing the Handheld Capnograph in

Original Packing

11-2

SECTION 12: SPECIFICATIONS

12.1 Physical

12.2 Environmental

12.3 Safety Standards

12.4 Performance

12.5 Power Specifications

12.6 Components and User Interface

12.1 PHYSICAL

12.1.1 Size

206 mm H x 88 mm W x 53 mm D (8.11”H x 3.46” W x 2.06”D)

12.1.2 Weight (including battery pack)

750 grams (1.66 lb.)

12.1.3 Noise Emission

maximum 45 dB(a)

12.2 ENVIRONMENTAL

12.2.1 T e mperature

Operating
Storage

12.2.2 Relative Humidity

o

C to 45oC (32oF to 113oF)

0

o

C to 70oC (-31oF to 158oF)

-35

10 to 95% (noncondensing)

12.2.3 Pressure and Altitude (for operating and storage).

Pressure 430 mmHg to 795 mmhg
Altitude -380m to 4,570m (-1,250 ft. to 15,000 ft)

12.3 SAFETY STANDARDS

The monitor was designed to comply with EN60601-1/1990, A1/1993,
A2/1995, EN60601-1-1/1992, A1/1996, UL 2601-1 and CSA 22.2 No. 601.1­M90, EN864/1997.

12-1

Section 12: Specifications

12.4 PERFORM ANCE

Sampling Ra te 50 ±7.5 ml/min
CO

2 Range 0-99 mmHg (0-13.2 kPa and 0-13.0 Vol%) at sea

level

Accuracy

EtCO

2 readings

The CO

2 reading reaches its steady state accuracy

20 minutes after power up.
0 - 38 mmHg: (±2 mmHg)

39 - 76 mmHg: (±5% of reading)
77 - 99 mmHg: (±8% of reading)

From power-up until steady state is reached, the
CO

2 reading accuracy is:

0 - 38 mmHg: (±4 mmHg)
39 - 76 mmHg: (± 12% of reading)
77 - 99 mmHg: (± 12% of reading)

Equivalent values for kPa and Vol%

Respiration Rate

0-150 breaths/min.

Warm-up Time 30 seconds (typical)
Frequency

Response

EtCO

2 accuracy is maintained up to 80 breaths/

min. (For maintaining accura cy for respirat ion rate
over 60 bpm, use the neonatal mode.) From 81 to
150 bpm accuracy is ±12%, if the EtCO

2 is higher

than 18.8 mmHg in neonatal mode.

System

2.45 seconds (typical), 2.9 seconds maximum
Response Time
(delay time)

Ambient

Compensated internally - automatic

Pressure
Alarms EtCO

2 high*, EtCO2 low*, FiCO2 high*, Apnea

message

* The accuracy of these alarms is the same as the accuracy of the EtCO2

readings.

12-2

12.5 POWER SPECIFICATIONS

12.5.1 External Pow er Sourc e

12V DC Medical Grade Adapter

12.5.2 Internal Power Source

Ni-MH Rechargeable Battery Pack 7.2V 2.1 A/h (intended for continuous
operation)

Section 12: Specifications

Operating Time
(fully charged)

Recharging
Period

Charger Type Internal

12.6 COMPONENTS AND USER INTERFACE

12.6.1. Displays

Graphic LCD
display

Two numeric
fields

Two-color alarm

3 digits each, using 7-segment LED dimension
22mm x 14 mm.

yellow, red

bar

12.6.2 Controls and Indicators

Between 3 and 6 hours, depending on power
management.These values refle ct the pe rformance
of a new battery; age and usage will degrade
capacity.

Approximately 4.5 hours internal recharging

(128 x 64 dots) with LED backlight dimension
75 mm x 53 mm.

12.6.3 Connections

Front Panel ON/OFF switch; Alarm Silence button; Contrast/

Value change button; Event/Home button; Next/
Menu button.

Front Panel CO

2 Input connector

Rear Panel Clamp connector
Side Panel Power Supply/Communication Adapter Port, Gas

output connector

12-3

[This page intentionally left blank]

SECTION 13: SPARE PARTS

13.1 Spare Parts List

13.1 SPARE PARTS LIST

Spare parts are shown belo w in Table 13-1. For spare part numbers
contact your local distributor.

Item Description

Table 13-1: Spare Parts List

1

CO

2 board - includes electronic board, sensor, pump

and scrubber, solenoid, LCD, 7-segment display, flow
system, CO

2 input connector, software EPROM and

screws.

2 Software Assembly - includes EPROM chip and last

updated software version.

3 Housing Kit - includes front cover, rear cover,

ON/OFF button, keypads, gas outlet, screws
4 7-Segment Digital Display (x2)
5 LCD Assembly - Graphic Display Screen and PC

driver
6 Calibration Gas (5% CO

2 in air)

7 Leak Test Jig - vacuum test accessories

8 Communication Adapter Kit
9 Battery Pack
10 Pump Assembly
11 Flow System

13-1

GLOSSARY OF TERMS

BIT: Built in Tests.
BTPS: Body Temperature, Pressure and Saturation

EPROM: Erasable Programmable Read Only Memory.

Compensation.
Where Body Temperature is assumed 37°C with

vapor pressure 47mmHg

The Calculations are made according to:

P

CO2

= F

x (Pb - 47)

CO2

Where:

F

is the Fractional concentration of CO2 in

CO2

Dry gas, F

= % CO2/100

CO2

Pb = the ambient pressure
P

= the partia l p r es sure of CO2 at BTPS

CO2

ESD: Electrostatic Discharge.
EtCO

: End Tidal Carbon Dioxide: amount of CO2 present

2

at the end of the exhalation.

FiCO

: Fractional Inspired Carbon Dioxide: amount of

2

present during inhalation.

CO

2

FRS: FilterLine Recognition Safeguard .
LCD: Liquid Crystal Display.
HMI: Human Machine Interface.
Respiration Rate: Number of respiratory cycles (inhal ation and

exhalation) per minute.

7-segments LED: Graphic display of seven segments of light emitter

diodes.

Solenoid: 2-way electro-pneumatic valve controlling the

directional flow either from th e patient or from the
CO

Scrubber (during Autozero).

2

Scrubber: Lithium compound CO

absorber.

2