Datex-Ohmeda S-5 Light Technical reference manual (2005)

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S/5

Datex-Ohmeda

Light Monitor, F-LM1, F-LMP1

Technical Reference Manual

CAUTION: U.S. Federal law restricts this device to sale by or on the order of a licensed medical practitioner.

Datex-Ohmeda, Inc.

P.O. Box 7550

Madison, WI 53707-7550, USA Tel. +1-608-221-1551

Fax +1-608-222-9147

All specifications are subject to change without notice.

Outside the USA, check local laws for any restriction that may apply.

Order Code M1037863

October 2005

Healthcare Finland Oy

Helsinki, Finland

P.O. Box 900

FIN-00031 GE, FINLAND

Tel: +358 10 39411

Fax : +358 9 146 3310

www.datex-ohmeda.com www.gehealthcare.com

Intended purpose

Datex-Ohmeda S/5 Light Monitor, F-LM1, F-LMP1 is intended for stationary and mobile monitoring of patient’s ECG, SpO2, body temperature, invasive and non-invasive blood pressures as well as respiration and CO2 in hospitals and ambulances. When used outdoors, the monitor must be in the protective case. The monitor is intended for use by qualified medical personnel only. The S/5 Light Monitor is intended for patients with weight from 5 kg (11 lb.) up. Respiration monitoring is intended for patients three years old and up.

Classification according to IEC 60601-1

• CLASS I EQUIPMENT and INTERNALLY POWERED EQUIPMENT according to the type of protection against

electrical shock.

• TYPE BF or CF equipment according to the degree of protection against electric shock is indicated with a

symbol beside each patient connector.

• Degree of protection against harmful ingress of water as detailed in the IEC 60529: Monitor: IPX1,

vertically falling water drops shall have no harmful effects (applicable when the monitor is in upright position, or tilted backwards). In the protective case IPX4, splash proof, when the case is closed properly, the monitor is intact and operates on battery power. Power adapter: IPX0, ordinary equipment.

• EQUIPMENT not suitable for use in the presence of a FLAMMABLE ANESTHETIC MIXTURE with air or with

oxygen or nitrous oxide.

• CONTINUOUS OPERATION according to the mode of operation.

• CSPR 11: Group 1, Class A

Classification according to EU Medical Device Directive

• The monitor is classified as IIb.

Responsibility of the manufacturer

GE Healthcare Finland Oy (GE) is responsible for the safety, reliability and performance of the equipment only if:

• assembly, operations, extensions, readjustments, modifications, service and repairs are carried out by

authorized personnel.

• the electrical installation of the relevant room complies with appropriate requirements.

• the equipment is used in accordance with the User’s Reference Manual and serviced and maintained in

accordance with the Technical Reference Manual.

The CO2 measuring option (N-LCM) is manufactured for GE Healthcare Finland Oy by Welch Allyn OEM Technologies, 8500 SW Creekside Place, Beaverton, OR 97008 USA.

Trademarks

Trademarks Datex, Ohmeda, S/5, MemCard, ComWheel and Oxytip+ are property of GE Healthcare Finland Oy. All other product and company names are property of their respective owners.

Master table of contents

Datex-Ohmeda S/5TM Light Monitor

Technical Reference Manual, M1037863

PART I, General Service Guide

Document No.

M1051339

8001934-2

M1051339

8000060-1

890201-5

M1051340

890200-5

896192-1

8000060-1

M1051358

896551-2

896552-2

896553-2

896554-2

Updated Updated

Description

Introduction, Safety, Architecture, Functional check, Service check, General

troubleshooting, Service Menu, General specifications

Planned Maintenance Instructions

PART II, Product Service Guide

CPU

Power Supply Unit

Hemodynamic Unit

CO2 Unit

Isolation Power Supply Unit for CO2 Unit

Datex-Ohmeda Light Monitor Recorder, N-LREC

Datex-Ohmeda Light Monitor Power Adapter, N-LPOW

Datex-Ohmeda Light Monitor Battery Module, F-LBAT

Datex-Ohmeda Light External Battery Charger, N-LCHGR

DataCard and Network Options, N-LDATA, N-LNET, N-LDNET

Spare Parts, Upgrade Kits and Exploded Views

Optional N-LCM Upgrade for Light Monitor

Optional N-LDNET Upgrade for Light Monitor

Optional N-LDATA Upgrade for Light Monitor

Optional N-LNET Upgrade for Light Monitor

Method of Replacing the Lamp Unit (LCD Backlight)

Document No. M1037863

Datex-Ohmeda S/5 Light Monitor

Document No. M1037863

TABLE OF CONTENTS

PART 1 - GENERAL SERVICE GUIDE

TABLE OF CONTENTS i

Part 1 - General Service Guide i

TABLE OF FIGURES iii

1 INTRODUCTION 1

1.1 Notes to the reader............................................................................................................................... 2

1.2 About this manual................................................................................................................................ 2

1.3 Related documents .............................................................................................................................. 2

1.4 Installation .......................................................................................................................................... 3

1.4.1 Choosing the location .................................................................................................................. 3

1.4.2 Warnings.....................................................................................................................................3

1.5 Symbols .............................................................................................................................................. 4

1.5.1 Symbols on equipment ................................................................................................................ 4

1.5.2 Symbols on transport packaging................................................................................................... 6

2 SAFETY 8

2.1 Safety precautions ...............................................................................................................................8

2.1.1 Warnings.....................................................................................................................................8

2.1.2 Cautions....................................................................................................................................11

2.2 ESD precautionary procedures............................................................................................................ 12

2.3 Safety test ......................................................................................................................................... 13

3 ARCHITECTURE 14

3.1 Monitor structure................................................................................................................................ 14

3.2 Power supply unit...............................................................................................................................16

3.3 CPU...................................................................................................................................................16

3.4 NIBP unit ...........................................................................................................................................17

3.5 ECG unit ............................................................................................................................................ 17

3.6 STP unit .............................................................................................................................................17

3.7 CO2 unit............................................................................................................................................. 17

3.8 Display unit........................................................................................................................................ 18

3.8.1 Slave display.............................................................................................................................18

3.9 Power adapters..................................................................................................................................18

3.9.1 N-LPOW..................................................................................................................................... 18

3.10 Host serial communications ...........................................................................................................18

3.10.1 Module bus ........................................................................................................................... 18

3.10.2 Computer interface (RS-232) ................................................................................................. 18

3.10.3 CO2 module........................................................................................................................... 19

3.10.4 Power board .......................................................................................................................... 19

3.10.5 Recorder ...............................................................................................................................19

4 CLEANING 20

5 FUNCTIONAL CHECK 21

5.1 General functional inspection .............................................................................................................21

5.1.1 Recorder test.............................................................................................................................23

5.1.2 PCMCIA card test.......................................................................................................................23

5.1.3 Network test .............................................................................................................................. 24

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Datex-Ohmeda S/5 Light Monitor

ECG board tests......................................................................................................................... 25

5.1.4

5.1.5 STP board tests ......................................................................................................................... 25

5.1.6 NIBP board test ......................................................................................................................... 26

5.1.7 Mainstream CO2 test.................................................................................................................. 26

5.2 Performance checks........................................................................................................................... 27

6 SERVICE CHECK 30

6.1 General service information................................................................................................................ 30

6.2 Service check procedure .................................................................................................................... 30

6.2.1 Visual inspection ....................................................................................................................... 31

6.2.2 Recorder test............................................................................................................................. 35

6.2.3 PCMCIA card test....................................................................................................................... 35

6.2.4 Network test.............................................................................................................................. 35

6.2.5 ECG measurement..................................................................................................................... 36

6.2.6 Respiration measurement.......................................................................................................... 37

6.2.7 Temperature measurement ........................................................................................................ 39

6.2.8 Invasive blood pressure measurement........................................................................................ 39

6.2.9 SpO2 measurement ................................................................................................................... 40

6.2.10 Non Invasive Blood Pressure measurement ............................................................................ 41

6.2.11 Mainstream CO2 measurement .............................................................................................. 43

6.2.12 For Light Monitor.................................................................................................................... 44

7 ADJUSTMENTS AND CALIBRATIONS 45

7.1 Pressure safety level detection “OFFSET”............................................................................................. 45

7.2 NIBP calibrations ............................................................................................................................... 45

7.2.1 Calibration check....................................................................................................................... 45

7.2.2 Calibration ................................................................................................................................ 46

7.3 Temperature calibration ..................................................................................................................... 47

7.4 Invasive pressure calibration .............................................................................................................. 48

8 GENERAL TROUBLESHOOTING 49

8.1 Troubleshooting flowchart .................................................................................................................. 49

9 SERVICE MENU 50

9.1 SW version / unit ID ........................................................................................................................... 50

9.2 Language selection ............................................................................................................................ 51

9.3 Monitor configuration......................................................................................................................... 51

10 GENERAL SPECIFICATIONS 52

10.1 Parameter specifications................................................................................................................ 52

10.1.1 ECG ...................................................................................................................................... 52

10.1.2 Impedance respiration...........................................................................................................52

10.1.3 Pulse oximetry (SpO2)/Pleth.................................................................................................. 53

10.1.4 Temperature.......................................................................................................................... 53

10.1.5 Non-invasive blood pressure.................................................................................................. 54

10.1.6 Invasive blood pressure (LMP1 models only)........................................................................... 54

10.1.7 CO2 (option N-LCM) ............................................................................................................... 55

10.2 General ......................................................................................................................................... 55

10.2.1 Environmental conditions ...................................................................................................... 56

10.3 Option codes ................................................................................................................................. 56

10.4 Display .......................................................................................................................................... 56

10.4.1 Slave display......................................................................................................................... 56

10.4.2 Trends................................................................................................................................... 57

10.4.3 Alarms .................................................................................................................................. 57

10.5 Light Monitor battery module (optional) (w/2 battery slots) .............................................................. 57

10.6 Light Monitor backup battery (optional)........................................................................................... 57

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Table of contents

External power adapter...................................................................................................................57

10.7

10.8 Light External Battery Charger (optional) .......................................................................................... 58

10.9 Output specifications .....................................................................................................................58

10.9.1 Nurse Call and Defibrillator Synchronization Signals ................................................................ 58

APPENDICES 59

FUNCTIONAL CHECK form A-1

SERVICE CHECK form B-1

EMC Guidance C-1

TABLE OF FIGURES

Figure 1 S/5 Light Monitor with battery module and power adapter ..................................................................... 1

Figure 2 Main block diagram of Light Monitor, revision 03 .................................................................................14

Figure 3 General troubleshooting chart............................................................................................................. 49

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iii

Datex-Ohmeda S/5 Light Monitor

Document No. M1051339

1 INTRODUCTION

The S/5 Light Monitor is a portable factory configurated compact monitor designed for stationary and mobile indoor monitoring of a patient’s vital signs. The monitor is available in two configurations; F-LM1 and F-LMP1. The difference between the configurations is illustrated in

table 1. Additionally, the monitor can be equipped with an optional recorder and battery module.

An external power adapter is provided for power supply. The Light Monitor has also data card option and Ethernet interface which enables connecting the monitor to the network for remote monitoring the patient and data collection.

Introduction

l ll

Figure 1 S/5 Light Monitor with battery module and power adapter

Table 1 Basic parameter configurations

ECGR NIBP SpO2 TEMP InvBP

F-LM1

F-LMP1

number of channels

• • •

Parameters

Parameter explanations:

ECGR ECG and respiration NIBP Non-invasive blood pressure

Pulse oximetry

SpO

TEMP Temperature InvBP Invasive blood pressure

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Datex-Ohmeda S/5 Light Monitor

The following factory configurable parameters and functions are available:

• N-LNET; Network option

• N-LDATA; DataCard option

• N- LDNET; Network and DataCard options

• N-LCM; Mainstream CO

To all monitors following options are available:

• N-LREC; Thermal printer

• N-LPOW; External power supply, input: 110/230 VAC

• F-LBAT; Battery Module w/ two batteries

• N-LCHGR; External battery charger w/ two batteries

• N-LBB; Rechargeable built-in backup battery

1.1 Notes to the reader

GE Healthcare reserves the right to make changes in product specifications without prior notice. The information in this manual is believed to be accurate and reliable; however, the manufacturer assumes no responsibility for its use.

GE Healthcare assumes no responsibility for the use or reliability of its software on equipment that is not furnished by GE Healthcare.

1.2 About this manual

This technical reference manual is intended for service personnel who will perform service and maintenance procedures on the Light Monitor.

option

This technical reference manual is divided into two parts:

• Part I contains a general description of the monitor and service procedures.

• Part II contains detailed descriptions of the component parts of the monitor.

1.3 Related documents

S/5 Light Monitor User's Reference Manual

The User’s Reference Manual provides detailed instructions and references for the operation and configuration of the monitor. Everyday service, maintenance procedures and troubleshooting hints are also included.

Patient Monitor Supplies and Accessories

The Patient Monitor Supplies and Accessories Catalogue provides information on all supplies and accessories available for the monitor.

Document No. M1051339

Introduction

1.4 Installation

1.4.1 Choosing the location

The monitor can be placed on a flat surface or hung with the handle from the bed or wall rails. Make sure that the surface or rail holds up to at least 10 kg/22 lb.

1.4.2 Warnings

WARNING The monitor or its components should not be used adjacent to or stacked with

other equipment. If adjacent or stacked use is necessary, the monitor and its components should be observed to verify normal operation in the configuration in which it will be used.

When choosing the location, refer to the appendix C later in this document.

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Datex-Ohmeda S/5 Light Monitor

1.5 Symbols

1.5.1 Symbols on equipment

on the rear panel indicates the warning:

Attention, consult accompanying documents.

Electric shock hazard. Do not open monitor frame. Refer servicing to qualified personnel. Do not touch any part of monitor or patient connections during defibrillation procedure. Disconnect power supply before servicing. Use only external power adapter N-LPOW.

on the rear panel dust filter indicates the reminder:

on the patient connector panel indicates the cautions:

on the external power adapter indicates the cautions:

on the battery unit indicates the warnings and cautions:

on the CPU board indicates the caution:

Check rear panel dust filter regularly, and clean at least once a month.

Use only the specified cables and accessories.

Ensure proper contact of the return electrode of the electrosurgery unit to your patient to avoid possible burns at ECG electrode or other probe sites.

For continued protection against fire hazard, replace only with same type and rating of fuse.

Make sure voltage selector is set according to local voltage.

For indoor use only. For patient transport outdoors use the monitor in protective case and battery powered.

Do not immerse in liquid or allow any liquid to enter the interior.

Do not put in fire. Do not short-circuit any terminals. Do not disassemble or mutilate. Use only with Battery Module or External Battery Charger. Discharge and charge batteries fully every 3 months or more often, if required, to restore full capacity.

Sealed NiCd battery must be recycled or disposed of properly. Discharge before disposing.

There is a lithium battery on the CPU board. Discard useless battery according to local regulations.

on the CO

Document No. M1051339

sensor Do not immerse the sensor in liquids or autoclave it.

Introduction

SpO

: Type BF (IEC-60601-1) protection against electrical shock, not defibrillation proof.

: Type CF (IEC-60601-1) protection against electrical shock, not defibrillation proof.

NIBP: Type BF (IEC-60601-1) defibrillator-proof protection against electrical shock.

ECG, P

, P2: Type CF (IEC-60601-1) defibrillator-proof protection against electrical shock.

Battery packs contain heavy metal cadmium (chemical symbol Cd) and, in case of disposal, must be separated from other waste according to local regulations.

Ni-Cd

Ni-C

This symbol indicates that the waste of electrical and electronic equipment must not be disposed as unsorted municipal waste and must be collected separately. Please contact an authorized representative of the manufacturer for information concerning the decommissioning of your equipment.

Battery packs contain Ni-Cd and they can be recycled.

Protective earth terminal

Input voltage

Output voltage

Power ON/STANDBY

IPX-class:

IPX0

Alternating current

Direct current

Degree of protection against harmful ingress of water as detailed in the IEC 60529:

– ordinary equipment

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Datex-Ohmeda S/5 Light Monitor

IPX1 IPX4

– vertically falling water drops shall have no harmful effects. – splash proof

SN, S/N Serial number

Battery charging LEDs: LEDs will blink while batteries are being charged, and will stay illuminated when batteries are fully charged and the monitor is connected to mains.

The monitor is connected to the network (optional).

The DataCard (option) is inserted. If symbol is blinking the card is faulty, or it is not inserted properly.

A blinking heart next to the heart rate or pulse rate value indicates the beats detected

A lung next to the respiration rate value indicates that respiration rate is calculated from the impedance respiration measurement.

Silence alarm indicator. When displayed on the upper left corner of the screen, indicates that all the alarms are silenced. When in the menu or digit fields, indicates that the alarm source has been turned off.

Ethernet connectors

Printer connector

Sample gas outlet

Do not immerse the sensor in liquids.

ESD warning symbol for electrostatic sensitive devices. Pins of connectors identified with the ESD warning symbol should not be touched. Connections should not be made to these connectors unless ESD precautionary procedures are used. See section ”

ESD precautionary procedures“ in this Technical Reference Manual for details.

Symbol for non-ionizing electromagnetic radiation. Interference may occur in the vicinity of equipment marked with this symbol.

1.5.2 Symbols on transport packaging

The contents of the transport package are fragile and have to be handled with care.

This symbol indicates the correct upright position of the transport package.

2.2

Document No. M1051339

The transport package must be kept in a dry environment.

Introduction

This symbol is to indicate the temperature limitations within which the transport package should be kept and handled.

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Datex-Ohmeda S/5 Light Monitor

2 SAFETY

2.1 Safety precautions

2.1.1 Warnings

WARNING Indicates situations in which the user or the patient may be in danger of injury

or death.

Explosion hazard

• Do not use the monitor in presence of flammable anesthetics.

Electrical shock hazard

• Use only hospital grade grounded electrical outlets and power cord. Grounding reliability

can only be achieved when the equipment is connected to a receptacle marked ‘hospital grade’.

• Do not remove cover. Refer servicing to qualified service personnel.

• Avoid any conductive contact to the probes and sensors.

• Disconnect the monitor from the electrical outlet before cleaning. Let it dry completely

before reconnecting it to the electrical outlet.

• Do not autoclave any part of the monitor with steam or ethylene oxide. Do not immerse in

liquid or allow liquid to enter the interior of any part.

• Make sure that external equipment is hospital grade grounded before connecting it to the

monitor. Do not connect any external equipment to the monitor, except that specified by GE Healthcare.

• When connecting external equipment to the monitor, make sure that the whole combination

complies with safety standard IEC 60601-1-1 for the medical electrical systems and with the requirements of local authorities. Non-medical electrical equipment connected to the monitor shall be supplied from an extra isolating transformer which has a protectively earthed outlet.

• Do not leave loose any sensor cables connected to patient. Either connect them to the

monitor or detach them from the patient.

• Do not use the monitor, any parts thereof or any accessories, if they have become wet or

exposed to liquid.

• Where the integrity of the external protective conductor installation or arrangement is in

doubt, equipment shall be operated from its internal power source.

Document No. M1051339

Patient safety

Safety

• Always make sure that necessary alarm limits are set and operative when you start

monitoring.

• When the alarms are suppressed, observe the patient frequently.

• Connect only one patient to one monitor at a time.

• Constant attention by a qualified professional is needed whenever a patient is under

anesthesia or connected to a ventilator. Some equipment malfunctions may pass unnoticed in spite of the monitor alarm.

• Do not use antistatic or electrically conductive breathing tubes. They may increase the risk

of burns when electrosurgery unit is utilized.

• Do not use the monitor during magnetic resonance imaging (MRI).

• ECG, Impedance Respiration, InvBP: Ensure proper contact of the return electrode of the

electrosurgery unit to your patient to avoid possible burns at sensor sites.

• ECG, Impedance Respiration, InvBP: Make sure that no part of the patient connections

touches any electrically conductive material including earth.

• Impedance Respiration: In obstructive apnea, thoracic movements and impedance

variations may continue.

• NIBP: The monitor sets the inflation pressure automatically according to the first

measurement. Reset the case to reset the inflation limit before measuring a new patient.

• PATIENTS WITH PACEMAKERS OR ARRHYTHMIAS: Monitor may count the pacemaker pulses

as heart beats during cardiac arrest, some arrhythmias, and with certain types of pacemakers particularly in ON R mode. Do not rely entirely upon rate meter alarms. Keep patients with pacemakers and arrhythmias under close surveillance.

• PACEMAKER PATIENTS: The impedance respiration measurement may cause rate changes

in Minute Ventilation Rate Responsive Pacemakers. Set the pacemaker rate responsive mode off or turn off the impedance respiration measurement on the monitor.

• SpO

: A damaged sensor, or a sensor soaked in liquid, may cause burns during

electrosurgery.

• SpO

: Change measuring site frequently. Change sensor site and check skin and circulatory

status every 2-4 hours with adults, and every hour with small children.

• The output signals are not floating and they must not be connected directly to a patient.

• Do not use delayed analog signals for defibrillator or intra-aortic balloon bump

synchronization.

• The monitor is intended for use by qualified medical personnel only.

• InvBP: All invasive procedures involve risks to the patient. Use aseptic technique. Follow

catheter manufacturer’s instructions.

• InvBP: Use only defibrillator proof cables and transducers.

• Operation of the monitor outside the specified values may cause inaccurate results.

• The monitor or its components should not be used adjacent to or stacked with other

equipment. If adjacent or stacked use is necessary, the monitor and its components should be observed to verify normal operation in the configuration in which it will be used.

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Datex-Ohmeda S/5 Light Monitor

WARNING Use only approved accessories, mounts and defibrillator-proof cables and

invasive pressure transducers. For a list of approved supplies and accessories, see the Supplies and Accessories catalog. Other cables, transducers and accessories may cause a safety hazard, damage the equipment or system, result in increased emissions or decreased immunity of the equipment or system or interfere with the measurement. Protection against cardiac defibrillator discharge is due in part to the accessories for pulse oximetry

), temperature (T) and invasive pressure (P) measurement.

(SpO

Single-use accessories are not designed to be re-used. Re-use may cause a risk of contamination and affect the measurement accuracy.

Service

• Only trained personnel with proper tools and test equipment should perform the tests and

repairs described in this manual. Unauthorized service may void the monitor warranty.

• Switch the power off, unplug the power cord, and remove the batteries before service.

• The monitor is always energized with 12 V when the batteries are connected, even though

the power cord is removed and ON/STBY switch is in STBY position.

• Do not touch any exposed wire or conductive surface while covers are off and the monitor is

energized. The voltages present can cause injury or death.

• Electrostatic discharge through the PC boards may damage the components. Before

replacing PC boards, wear a static control wrist strap. Handle all PC boards by their nonconductive edges and use anti static containers when transporting them.

• Do not break or bypass the patient isolation barrier when testing LM-STP and LM-ECG

boards.

• Do not perform any testing or maintenance on the monitor while they are being used on a

patient.

• There are special components used in this monitor, which are vital to assure reliability and

safety. GE Healthcare assumes no responsibility for damage if replacement components not approved by GE Healthcare are used.

• Replace the fuse with a fuse of the same type and the same rating.

• Perform electrical safety checks and current leakage tests to the monitor after service.

Document No. M1051339

2.1.2 Cautions

CAUTION Indicates situations in which the unit or devices connected to it may be

damaged.

• Use licensed patient cables and accessories only, see Datex-Ohmeda Catalogue Patient

Monitor Supplies and Accessories. Other cables and accessories may damage the system or interfere with measurement.

• Before connecting power cord, ensure that the input voltage selector is set correctly in the

external power adapter.

• Use the monitor outdoors with the battery power only.

• Do not store the monitor beyond the specified temperature range.

• Do not use hypochlorite, ammonia-, phenol- or acetone-based cleaners. They may damage

the monitor.

• Clean rear panel fan dust filter once a month or whenever needed.

• Leave space around the monitor for ventilation to prevent the monitor from overheating.

• Do not apply pressurized air to any outlet, or tubing connected to the monitor. Pressure may

destroy sensitive elements.

Safety

Battery cautions

• When used in moving vehicle mount the monitor properly.

• Dispose of the device and parts thereof in accordance with local regulations.

• Vibrations during transport may disturb SpO

, ECG, impedance respiration and NIBP

measurements.

• CO

• DataCards: Do not subject cards to excessive heat, bending, or magnetic fields.

• InvBP: Mechanical shock to invasive blood pressure transducer may cause severe shifts in

, SpO2: Do not apply force to sensors or sensor cables.

: Do not force the water-trap into place.

zero balance and calibration, and produce erroneous readings.

• Electromagnetic interference from radio-frequency transmitting devices in ambulances may

affect the performance of this medical device.

• Do not put in fire.

• Do not short-circuit any terminals.

• Do not use damaged or leaking batteries.

• Do not disassemble or break the batteries.

• Use only with Battery Module.

• Charge and discharge batteries fully every 3 months or more often, if required, to restore full

capacity.

• Sealed NiCd battery must be recycled or disposed properly. Discharge before disposing.

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Datex-Ohmeda S/5 Light Monitor

Storage and transport

• For allowed storage and transport conditions refer to the documentation delivered with the monitor.

Points to note

• Medical electrical equipment needs special precautions regarding electromagnetic compatibility and

needs to be installed and put into service by qualified personnel according to the electromagnetic compatibility information provided in the Appendix C.

• Portable and mobile RF communications equipment can affect the medical electrical equipment.

• The allowed cables, transducers and accessories for the system are listed in the Supplies and

Accessories catalog delivered with the monitor.

• The equipment is suitable for use in the presence of electrosurgery. Please notice the possible

limitations in the parameter sections and in the "Safety precautions" section.

• Service and reparations are allowed for authorized service personnel only.

• CISPR 11 classifications:

− Group 1 contains all ISM (Industrial, scientific and medical) equipment in which there is

intentionally generated and/or used conductively coupled radio-frequency energy which is necessary for the internal functioning of the equipment itself.

− Class A equipment is suitable for use in all establishments other than domestic and those directly

connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

2.2 ESD precautionary procedures

• To avoid electrostatic charges to build up, it is recommended to store, maintain and use the

equipment at a relative humidity of 30% or greater. Floors should be covered by ESD dissipative carpets or similar. Non-synthetic clothing should be used when working with the component.

• To prevent applying a possible electrostatic discharge to the ESD sensitive parts of the

equipment, one should touch the metallic frame of the component or a large metal object located close to the equipment. When working with the equipment and specifically when the ESD sensitive parts of the equipment may be touched, a grounded wrist strap intended for use with ESD sensitive equipment should be worn. Refer to the documentation provided with the wrist straps for details of proper use.

ESD precautionary procedure training

It is recommended that all potential users receive an explanation of the ESD warning symbol and training in ESD precautionary procedures.

The minimum contents of ESD precautionary procedure training should include an introduction to the physics of electrostatic charge, the voltage levels that can occur in normal practice and the damage that can be done to electronic components if they are touched by an operator who is electrostatically charged. Further, an explanation should be given of methods to prevent build-up of electrostatic charge and how and why to discharge one’s body to earth or to the frame of the equipment or bond oneself by means of a wrist strap to the equipment or the earth prior to making a connection.

Document No. M1051339

2.3 Safety test

Measure leakage current according to following procedures:

• Connect the GND electrode of the test device to the body of the 9-pin D-connector of the Light

Monitor. The nuts that are for locking the male cable connector can be used as well.

Safety

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Datex-Ohmeda S/5 Light Monitor

3 ARCHITECTURE

The Light Monitor is a compact patient monitor with fixed configuration. The monitor is designed for stationary and mobile indoor monitoring of a patient’s vital signs. The monitor can be equipped with an optional recorder and battery module. An external power adapter is provided for power supply.

3.1 Monitor structure

Keyboard

Patient

connector

panel

NIBP

ECG &

Respiration

InvBP(S),

TEMP(S) &

SpO2

MS-CO2

NESTPR

NIBP UNIT

Pwr data

ECG UNIT

STP UNIT

CO2 UNIT

Buttons &

ComWheel

POWER SUPPLY

Alarm leds

BOARD

Data buffers

Module bus

ECG

direct output

CO2 data

DSYNC,

NCALL

RS-232

Backlight

Inverter

CPU

BOARD

Display

Slave

Display

Speaker

Recorder

PCMCIA

ISA bus

Ethernet

Patient

isolated

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Battery data (12C)

Battery module

ECG Direct,

DSYNC, NCALL

Computer

Interface

Ext. power

supply: mains

or DC/DC

Battery #1

Battery #2

Figure 2 Main block diagram of Light Monitor, revision 03

The monitor can be divided into the following parts:

1. CPU board

The CPU board controls display and slave display, loudspeaker and recorder according the data collected from the other units.

LM_blck_rev03_dgrm.vsd

2. STP unit

The STP unit is a parameter board that measures invasive blood pressure(s), body temperature and oxygen saturation of the blood (SpO2).

3. ECG unit

The ECG unit is a parameter board that measures 3-lead ECG.

4. NIBP unit

The NIBP unit is a parameter board that measures non-invasive blood pressure.

Architecture

5. CO

unit

The CO

unit measures carbon dioxide consentration of the respiration gases. Measurement

is performed by an OEM product manufactured by Welch Allyn.

6. Network unit

The unit enables connecting the Light Monitor to the network for remote monitoring the patient and data collection.

7. Memory unit

The memory unit is an optional data storage module. It is used for storing patient related physiological data by removable PC-card.

8. Power supply board

Board delivers power from one of the power sources, external power supply or one of the two batteries. The other operations are:

• battery management: secondary battery charge/discharge control and capacity

gauge

• keyboard and ComWheel reading

• alarm and charge led control/drive

• buffering serial communication

9. Display

The display is 8.4” Active Matrix Color TFT LCD. The resolution is 640 x 480 pixels.

10. Printer

The built-in thermal printer provides a real time waveform printing, numerical data and trend data printout up to 24 hours.

11. Battery module

Two rechargeable and removable secondary batteries are located in the separate battery module.

12. Keyboard and Comwheel

Keyboard and ComWheel actions are read by the power supply board.

13. Backup Battery

Built-in NiCd battery is located inside the monitor. It provides typically up to 30 min operation time to the monitor.

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3.2 Power supply unit

The power supply board functions can be summarized as follows:

• Charge the batteries.

• Choose between battery and mains operation.

3.3 CPU

• Distribute power to the CPU, CO

• Control the alarm LEDs.

• Read the input from the keyboard and ComWheel.

The CPU, CO

, STP, ECG, and NIBP boards are connected to the power supply board for centrally

, STP, ECG, and NIBP boards.

distributed power. Thus all signals transmitted between these boards are transmitted via the power supply board. The power supply board controls the reset of the CPU board via the startup key.

The CPU board functions can be summarized as follows:

• Process the data transmitted from the CO

• Control the CO

• Control the display, loudspeaker and recorder.

• Generate alarm signals.

• Generate nurse call signal.

, STP, ECG, and NIBP boards.

, STP, ECG, NIBP and power supply boards.

The display, the loudspeaker and the recorder, are all connected directly to the CPU board. The CPU board includes the circuitry required to control these units. The CPU board communicates with the power supply board over a 9600 baud serial communication channel. The ECG, STP and NIBP boards are connected to the CPU board via the power supply board. The CPU board communicates with these boards over a 500 kbaud serial communications channel. The reset of the ECG, STP and NIBP boards is controlled separately.

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The CPU board generates a nurse call signal in the event of an alarm situation. The signal is transmitted via the power supply board to the serial I/O connector on the monitor rear panel.

3.4 NIBP unit

The NIBP unit consists of the NIBP board, an air pump, and pneumatic valves. The NIBP board functions can be summarized as follows:

• Control the function of the air pump and the pneumatic valves.

• Measure the pressure variation of the NIBP cuff.

The pressure variation of the NIBP cuff is analyzed on the NIBP board and transmitted to the CPU board over a serial communication channel.

3.5 ECG unit

The ESTP board functions can be summarized as follows:

• Measure ECG

• Generate defibrillation synchronization signal

The ECG signal is monitored and analyzed on the ECG board and transmitted to the CPU board over a serial communication channel.

The ECG board is electrically patient isolated. The operating voltage 10...16 V is generated from the + 12 V received from the power supply board. The ECG board is reset by the CPU board.

Architecture

The ECG board generates a defibrillation synchronization signal. The signal is transmitted via the CPU and power supply board to the serial I/O connector on the monitor rear panel. The defibrillation synchronization signal is available also on the patient connector on the patient connector panel.

3.6 STP unit

The STP board functions can be summarized as follows:

• Measure SpO

The signals from the parameters being monitored are analyzed on the STP board and transmitted to the CPU board over a serial communication channel.

The STP board is patient isolated. The operating voltage is generated from the +12 V voltage received from the power supply board. The STP board is reset by the CPU board.

3.7 CO2 unit

The CO2 unit consists of the CO2 board, an isolated power supply, and a pump. The CO2 board functions can be summarized as follows:

• Process the CO

• Generate end tidal and inspiratory CO

• Control the Mainstream CO

The waveform data is processed on the CO communication channel.

, temperature and invasive blood pressure.

waveform generated by the mainstream CO2 sensor.

values, and breaths per minute data.

sensor motor and heater.

board and transmitted to the CPU board over a serial

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3.8 Display unit

The main CPU directly controls the monitor display, an 8.4 inch color LCD. Supply voltages for the display are connected via the CPU board. The inverter board provides high voltage for the display backlights. The CPU controls the display brightness by adjusting the backlight voltage.

NOTE: The LCD display backlight circuit runs on a high voltage. Do not touch the inverter board or the backlight tube leads when powered.

3.8.1 Slave display

Internal VGA compatible display controller with 640 × 480 resolution. The slave display can be connected to external VGA connector, X7.

3.9 Power adapters

3.9.1 N-LPOW

The external power adapter N-LPOW is connected to the power connector on the monitor rear panel. The adapter includes a switch for the voltage range and a LED indicating energization. The power adapter supplies 12.5 V to operate the monitor and 18.5 V to charge the batteries. Fuses are located on the primary side of the adapter for overvoltage protection. See the part II/7 for more information.

3.10 Host serial communications

3.10.1 Module bus

The module bus is an asynchronous, CMOS-level serial communication between host processor and Datex-Ohmeda based parameter modules and CO and RXDM signals are used. The TXDM signal is module bus transmit line from host to modules and the RXDM signal is a receive line from modules to host. Modules are wired-OR connected to RXDM line.

The module communication link is also provided in the D15 male connector on the rear panel.

3.10.2 Computer interface (RS-232)

The computer interface is an asynchronous, RS-232-level serial communication between the Light Monitor and external device e.g. PC. External device is connected to the D15 male connector on rear panel.

measurement by Welch Allyn. Only TXDM

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3.10.3 CO2 module

The CO2 module, manufactured by Welch Allyn is used in the Light Monitor for CO2 mainstream measurement. Communication with the host is provided by an asynchronous serial link. Signals used in the communication are TXDC, RXDC. The TXDC signal is transmit line from host to CO module and the RXDC signal is a receive line from CO

3.10.4 Power board

Host communicates with the power board on an asynchronous serial link. TXDP and RXDP signals are used. The TXDP signal is transmit line from host to power board and the RXDP signal is a receive line from power board to host.

3.10.5 Recorder

The host sends data to the printer via an asynchronous serial link. TXDR, RXDR, CTSR and RTSR signals are used. The TXDR signal is transmit line from host to recorder and the RXDR signal is a receive line from recorder to host CTSR and RTSR lines are used for handshaking.

module to host.

Architecture

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4 CLEANING

Before cleaning:

• Turn the power to Standby

• Disconnect the power cord from the mains power supply

After cleaning:

• Let dry completely

• Reconnect the power cord and turn the power ON

CLEANING CASING / SURFACE when needed

Wipe gently with a cloth, moistured with a mild detergent.

Let dry completely before reconnecting the power cord.

CLEANING DUST FILTER at least once a month

Pull out the filter frame on the rear panel. Do not remove any screws!

Shake the filter and blow out the dust.

If the filter is damaged, replace it with a new one (p/n 888260).

PERMITTED CLEANERS PERMITTED DISINFECTANTS

Datex-Ohmeda cleaning fluid

Other mild detergents

For more detailed information see User’s Reference Manual.

Ethanol

Isopropyl alcohol

Chlorite compounds

Glutaraldehyde

CLEANING PATIENT ACCESSORIES

See the instructions delivered with the accessory.

NOT ALLOWED

Do not use Hypochlorite, acetone-, phenol- or ammonia based cleaners.

Do not autoclave the device.

Do not immerse the device in liquids or allow liquids to enter the interior of any part.

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5 FUNCTIONAL CHECK

These instructions include complete procedures for functional check (FC) for Datex-Ohmeda Light Monitors. The functional check is recommended to be performed after monitor installation and after long storage.

The first part of the instructions contains check procedures that are done through the service menu. These checks are especially recommended if the monitor has been stored for a long time without using it.

When installing a new monitor, the performance checks with a simulator and accessories are typically enough to ensure the correct function of the monitor. We recommend however always performing the complete check to confirm that no hardware failures occurred during transportation.

The instructions are planned for the maximum functional configuration. Perform the procedures in the ascending order and skip the items that do not correspond to your monitor configuration.

The instructions include a check form (Appendix A) to be filled in when performing the corresponding procedures.

Functional check

The symbol

checklist.

All menu selections related to

Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8) – Modules - ESTP - ECG

Menu selections related to other products e.g. simulators are written in following typeface:

" in the instructions means that the performed procedure should be signed in the

Datex-Ohmeda products are written in following typeface:

RESP - WAVE - NORM

- RATE - 20

Recommended tools:

Tool Order No.

Simulator capable of simulating ECG, RESP and invBP -

SpO2 finger probe SAS-F4

Adult NIBP cuff 572435

Adult NIBP hose 877235

MemCard- Data (only for monitors with data card option)

Temperature test plug set 884515

Mainstream CO2 sensor (only for monitors with CO2 option) 902300

Mainstream CO2 airway adapter (only for monitors with CO2 option) 902301/902302/902303

5.1 General functional inspection

1. Connect the power cord to the power adapter and the power adapter cable to the Light Monitor. Check that the green LED turns on in the power adapter and the LED in the lower right-hand corner of the monitor turns on or starts flashing. If the monitor contains a battery module, check that both battery charge status LEDs turn on or start flashing.

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2. Switch the monitor on. Check that the monitor starts up properly, i.e.

− both alarm LED’s turn on and off

− the fan starts running

− the start-up sound is heard from the loudspeaker

− the normal monitoring screen appears

− no error messages appear on the screen *)

− If the monitor contains a recorder, two lines of start-up information should be

− check that the time and date are correct, adjust if necessary

− if the monitor contains an F-LBAT or N-LBB, check that the battery symbol is

3. Check the loudspeaker by adjusting the alarm volume in the Alarms Setup menu:

Press the

Select Alarms Setup - Alarm Volume

Test the whole volume scale from 1 to 10 by turning the ComWheel and check that the alarm volume changes correspondingly. The alarm sound should be clear and audible at all settings.

Select Main Menu

recorded

displayed

*) NOTE: “Check network connectors” will appear if the N-LNET or N-LDNET option is installed.

Menu button.

4. Select Service View – Keyboard - Dummy Press.

Press the function keys one by one. Check that each key generates a sound from the loudspeaker and the corresponding text.

5. Check that the time and date are correct, adjust if necessary.

Select Monitor Setup – Set Time and Date

NOTE: You cannot change the monitor’s time settings after a case has started. This prevents losing the trend data. NOTE: If the clock shows time 0:00 continuously after start-ups, the SRAM/Timekeeper’s battery on the CPU board needs to be replaced. Return to Main Menu by selecting Previous Menu - Main Menu

6. Check the battery (If F-LBAT or N-LBB option included):

Disconnect the power cord (without switching the monitor to standby).

Check that the monitor continues to run normally with battery. The battery indicator should appear in the upper right hand corner of the screen:

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5.1.1 Recorder test

7. Open the paper compartment cover. Check that the message “Recorder: Cover open”

8. Select Main Menu - Record/Print- Record Wave

Functional check

Reconnect the power cord and check that during charging, the charging symbol is displayed and the Battery charge status LED starts flashing:

appears on the screen, then close the cover.

and check that the recorder starts recording. Select Stop Wave to stop recording. Check that the quality of the recordings is acceptable.

5.1.2 PCMCIA card test

9. Insert the Memory card labeled “Data” in the DataCard slot. Check that the message “Data Card inserted” appears in the message field and the white data card symbol in the upper right hand corner of the screen appears within one minute.

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5.1.3 Network test

10. Connect the Mon-Net cable and the Identification plug to the monitor.

11. Check that the monitor connects to the Datex-Ohmeda Network, i.e. the network symbol

A message regarding the connection to Datex-Ohmeda Information Center should appear in

the message field on the screen.

12. Press the Menu button to enter the Network service menu:

Monitor Setup - Install/Service (Password 16-4-34) - Service View (Password 26-23-8) - Monitor - Communication

Check that:

− the “location ID number” matches with the ID plug connected to X3

− the packets and bytes IN is increasing slowly

− the packets and bytes OUT is increasing quickly.

− the “connections” shows the names of the connected networks

− the counters for data errors (“CRC”, “Frame”, “Transm.”) are stable

NOTE: The counters may show values greater than 0. However, any values increasing

continuously indicate a problem.

is displayed on the upper right-hand corner of the screen.

13. Check that the counters for hardware errors (“Intern.”, “Missed”, “FIFO”, “Overrun”) all show 0. If any of the counters show a value greater than 0, it indicates a problem on the CPU board.

Return to the Monitor Setup menu by selecting Previous Menu repeatedly.

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5.1.4 ECG board tests

14. Enter the ESTP : ECG service menu:

Press the

Monitor Setup - Install/Service (Password 16-4-34) - Service View (Password 26-23-8) - Modules - ESTP : ECG

Check from the Service Data that:

− the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not increasing

− the ECG/RESP board memories have passed the internal memory test, i.e. “RAM”,

15. Check that the module mains power frequency “Power Freq” value has been set according

to the supply frequency. If necessary, change the setting by selecting Power Freq.

16. Check that the “Resp Available” and “Resp measurement” both show ON.

NOTE: The Resp measurement shows OFF, if Resp is not selected to the screen setup. To

setup the screen, press the Digit Fields.

Functional check

Menu button and select:

faster than by 50 per second.

“ROM” and “EEPROM” all state OK.

Menu key and select: Monitor Setup - Waveform Fields or

5.1.5 STP board tests

17. Enter the ESTP : STP service menu:

− Check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not

increasing faster than by 50 per second.

− Check that the STP board memories have passed the internal memory test, i.e. “RAM”,

“ROM” and “EEPROM” all show OK.

18. Check that the protection for temperature calibration is on:

“Protect key” text in the menu should state OFF. “Protect mode” text should state ON.

If necessary, change the protection mode in the Calibrations menu.

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5.1.6 NIBP board test

19. Enter the NIBP service menu:

Check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not

increasing faster than by 50 per second. Check that the NIBP board memories have passed the internal memory test, i.e. “RAM”, “ROM” and “EEPROM” all show OK.

5.1.7 Mainstream CO2 test

20. Enter the CO2 service menu:

Press the

Monitor Setup - Install/Service (Password 16-4-34) - Service View (Password 26-23-8) - Modules – CO2

Check from the Service Data that: “Timeouts”, “Bad checksums” and “send queue full”

values are not increasing faster than by 50 per second. A value increasing faster than this indicates a failure in Module Bus communication.

Menu button and select:

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5.2 Performance checks

1. Connect a 5-lead cable to the monitor. Configure the monitor screen so that all parameter information is displayed, for example for the maximum configuration:

Press the

Monitor Setup - Waveform Fields/Digit Fields

Waveform Fields Digit Fields

Field 1 - ECG1 Field 1 -Temp

Field 2 - P1 Field 2 – NIBP

Field 3 – P2 Field 3 – Pleth

Menu button to enter the Main Menu and select:

Functional check

Field 4 - Resp Field 4 - CO

Return to

Connect the patient simulator and check that all parameter information is displayed as configured on the screen.

NOTE: InvBP waveforms are not shown without a patient simulator.

Preset measurement settings for parameters, for example as follows:

Normal Screen.

ECG & Resp - ECG Setup - HR Source – AUTO

- Resp Setup - Size - 1.0

- Resp Rate Source - AUTO

- Detection Limit - AUTO

NOTE: The RESP waveform or Digit Field has to be selected on the screen before the respiration measurement can be turned on.

NIBP & Inv. Press - P1 Setup&Alarm - Label - ART

- P2 Setup&Alarm - Label - CVP Press the

- Pleth Scale - AUTO

Menu button to enter the SpO2 & Temp and select

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2. Connect the patient simulator to the ECG and InvBP connectors, SpO connector and temperature test plug to the Temp connector. Attach the SpO finger and check that:

− the simulated waveforms are good

− the SpO

− the Pleth waveform is normal.

3. Set the InvBP simulator to +100 mmHg static pressure. Push the Zero All button and check that:

− the InvBP waveforms set on the baseline

− the digital values go to zero

Set the simulator to 0 mmHg and press

the zeroing, turn the simulator to dynamic mode and check that the waveform is normal.

4. Check that the message “No probe” is displayed when there is no SpO Connect a SpO displayed when the probe is not connected to finger.

value is in expected range

Zero All button. After the monitor has completed

finger probe to the monitor and check that the message “Probe off” is

probe to the SpO2

probe on your

sensor connected.

5. Attach the SpO pleth waveform is displayed and the SpO Check that the HR value is calculated from SpO connected.

sensor to your finger and check that after the message “Pulse search” the

value is in the expected range (95-99 %).

when ECG and InvBP (P1) cables are not

6. Remove the SpO2 sensor from your finger and check that the message “Probe off” is displayed. Disconnect the sensor from the monitor and check that “No probe” message is displayed.

7. Attach an adult NIBP cuff onto your arm and perform one NIBP measurement. Check that the module identifies the cuff, i.e. the text “Adult” appears in the NIBP digit field for a short time.

Check that the module gives a reasonable measurement result.

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Functional check

8. Check that the message “No CO2 sensor” is displayed when there is no CO connected. Connect a CO displayed.

9. Wait until the “warming” message disappears and the CO Breathe at least 5 times to the CO are reasonable and the Respiratory value is calculated.

• Fill in all necessary documents.

sensor to the monitor and check that the message “warming” is

value appears on the screen.

sensor adapter and make sure that the measured values

sensor

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Datex-Ohmeda S/5 Light Monitor

6 SERVICE CHECK

6.1 General service information

Field service of the Light Monitor is limited to replacing faulty printed circuit boards or mechanical parts. Faulty printed circuit boards should be returned to GE Healthcare for repair.

GE Healthcare is always available for service advice. Please provide the unit serial number, full type designation, and a detailed description of the fault.

The instructions are planned for the maximum functional configuration. Perform the procedures in the ascending order and skip the items that do not correspond to your monitor configuration.

CAUTION Only trained personnel with appropriate equipment should perform the tests and

repairs outlined in this section. Unauthorized service may void warranty of the unit.

6.2 Service check procedure

These instructions include complete procedures for service check. The service check is recommended to be performed after any service repair, however, the service check procedures

can be used also for determining possible failures.

The procedures should be performed in ascending order.

The instructions include a check form (Appendix B) which should be filled in when performing the procedures.

Names of the keys are written in bold Helvetica typeface, for example

Selectable menu items are written in bold and italic typeface, for example Previous Menu.

Informative messages displayed on the screen are written in normal typeface, but separated with quotation mark, for example ‘Please wait’.

The mark

check form.

The procedures are designed for monitors with monitor software of level 894727-4.1. However, for the most part they apply to monitors with older monitor software as well.

Recommended tools

Tool Order No.

Patient simulator for ECG, Impedance Resp and BP -

Pressure manometer -

Temperature test set 884515

3- and 5-lead ECG cable -

SpO2 finger probe OXY-F4-N

InvBP transducer 78000

Adult NIBP cuff 572435

Adult NIBP hose 877235

Infant NIBP hose 877514

Infant NIBP cuff 877407

Mainstream CO2 sensor (only for monitors with 902300

Normal Screen.

" in the instructions means that the performed procedure should be signed in the

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Tool Order No.

CO2 option)

Mainstream CO2 airway adapter (only for monitors with CO2 option)

Screwdriver -Pozidrive- type

MemCard- Data (only for monitors with data card option)

Recommended parts

Service check

902301/902302/ 902303

Part Order No.

Fan filter 886841

Recorder paper 74205 if N-LREC option

6.2.1 Visual inspection

• Switch the monitor to standby

• Disconnect all the connection cables from the monitor’s rear panel.

1. Check internal parts:

− Make visual inspection for all external parts of the monitor. Check e.g. that the power

− Connect the power cord to the power adapter and check the supply voltage from the

Pin Signal

Notes

installed

cord receptacle is intact in the power adapter.

power adapter’s connector. PIN 1 voltage must be 12.7 V without load (Figure 1). If necessary, adjust the 12.7 V with trimmer R23 (Figure 2).

1 2 3 4

12.7 V GND

18.5 V GND

Figure 1 Power adapter’s voltages

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Datex-Ohmeda S/5 Light Monitor

Figure 2 Adjustment trimmer R23 in N-LPOW

− Clean or replace the fan filter.

− Clean the recorder unit, if necessary.

− Check that all shielding flaps (6 pcs) are properly closed. (Figure 3)

R23

Shielding Flaps (6 pcs)

Figure 3 LM1-STP board EMC covers

2. Check external parts:

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− the patient panel sticker is intact

− all connectors are intact and attached properly

− both screws on the patient panel are tightened properly

3. General functional inspection

− Connect the power cord to the Power Adapter and the Power Adapter cable to the Light

Monitor. Check that the green LED turns on in the power adapter and the LED on the lower right-hand corner of the monitor turns on or starts flashing. Check that both Battery charge status LEDs turn on or start flashing.

− Switch the monitor on. Check that the monitor starts up properly, i.e.

− both alarm LEDs turn on and off

− the fan starts running

− the start-up sound is heard from the loudspeaker

− the normal monitoring screen appears

− no error messages appear on the screen *)

− if the monitor contains a recorder, two lines of start-up information should be recorded

Service check

− check that the time and date are correct, adjust if necessary

− if the monitor contains an F-LBAT or N-LBB, check that the battery symbol is displayed:

*) NOTE: ”Check network connectors" will appear if the N-LNET or N-LDNET option is installed.

− Enter the service menu and select Dummy Press.

Press the function keys one by one. Check that each key generates a sound from the loudspeaker and the corresponding text.

4. Screen setup

− Configure the monitor screen according to the monitor configuration so that all necessary

parameter information is displayed, for example as follows:

Menu - Monitor Setup- Waveform Fields - Field 1 - ECG1

- Field 2 – P1

- Field 3 – P2

- Field 4 - Resp

- Digit Fields - Lower Field 1 - NIBP

- Lower Field 2 – CO2

- Lower Field 3 – Pleth

- Lower Field 4 – Temp

− Connect the patient simulator to the monitor and check that all needed parameter

information is shown on the screen.

NOTE: The RESP waveform or Digit Field has to be selected on the screen before the respiration measurement can be turned on.

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5. Preset ECG, Respiration, InvBP and SpO

measurement settings:

ECG & Resp - ECG Setup - Hr Source - Auto

- Pacemaker - Show

- Resp Setup - Size - 1.0

- Resp Rate Source - Auto

- Measurement - On

- Detection Limit - Auto

NIBP & Inv. Press - P1 Setup&Alarm - Label - Art

P2 Setup&Alarm - Label - Cvp

SpO2 & Temp - Pleth Scale – Auto

6. Press the Menu button and check the loudspeaker by adjusting the alarm volume in the

Alarms Setup menu:

− Test the whole volume scale from 1 to 10 by turning the ComWheel and check that the

alarm volume changes correspondingly. The alarm sound should be clear and audible at all settings.

7. Select Service View – Keyboard – Dummy Press.

Press the function keys one by one. Check that each key generates a sound from the loudspeaker and the corresponding text.

8. Check that the time and date are correct, adjust if necessary:

Menu – Monitor Setup – Set Time and Date

− NOTE: You cannot change the monitor’s time settings after a case has started. This

prevents losing the trend data.

− NOTE: If the clock shows time 0:00 continuously after start-ups, the SRAM/Timekeeper’s

battery on the CPU board needs to be replaced.

9. Check the battery (If F-LBAT or N-LBB option included): Disconnect the power cord (without switching the monitor to standby).

Check that the monitor continues to run normally with battery. The battery indicator should appear in the upper right hand corner of the screen:

Reconnect the power cord and check that during charging, the charging symbol is displayed and the Battery charge status LED starts flashing:

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6.2.2 Recorder test

10. Open the paper compartment cover. Check that the message “Recorder: Cover open”

appears on the screen, then close the cover.

11. Select Main Menu - Record/Print- Record Wave

and check that the recorder starts recording. Select Stop Wave to stop recording. Check that the quality of the recordings is acceptable.

6.2.3 PCMCIA card test

12. Insert the Memory card labeled “Data” in the DataCard slot. Check that the message “Data

Card inserted” appears in the message field and the white data card symbol in the upper right hand corner of the screen appears within one minute.

6.2.4 Network test

Service check

13. Connect the Mon-Net cable and the Identification plug to the monitor.

14. Check that the monitor connects to the Datex-Ohmeda Network, i.e. the network symbol

is displayed on the upper right-hand corner of the screen.

A message regarding the connection to Datex-Ohmeda Information Center should appear in

the message field on the screen.

15. Press the Menu button to enter the Network service menu:

Monitor Setup - Install/Service (Password 16-4-34) - Service View (Password 26-23-8) - Monitor - Communication

Check that:

− the “location ID number” matches with the ID plug connected to X3

− the packets and bytes IN is increasing slowly

− the packets and bytes OUT is increasing quickly.

− the “connections” shows the names of the connected networks

− the counters for data errors (“CRC”, “Frame”, “Transm.”) are stable

NOTE: The counters may show values greater than 0. However, any values increasing

continuously indicate a problem.

16. Check that the counters for hardware errors (“Intern.”, “Missed”, “FIFO”, “Overrun”) all show

0. If any of the counters show a value greater than 0, it indicates a problem on the CPU board.

Return to the Monitor Setup menu by selecting Previous Menu repeatedly.

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6.2.5 ECG measurement

17. Enter the service menu:

Menu - Monitor Setup - Install/Service (Password 16-4-34) -

Service View (Password 26-23-8)

Take down the information regarding monitor software and unit id by selecting Scroll Vers and turning the ComWheel or choose Record Vers if the recorder is installed.

18. Enter the ESTP : ECG service menu:

Menu - Monitor Setup - Install/Service (Password 16-4-34) -

Service View (Password 26-23-8) - Modules - ESTP : ECG

Check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not increasing faster than by 50 per second. Check also that the ECG/RESP board memories have passed the internal memory test, i.e. the “RAM”, “ROM” and “EEPROM” state all OK.

19. Check that the power frequency value has been set according to the current mains power

frequency. Change the setting by selecting Power Freq, if necessary.

20. Connect a 5-lead ECG cable to the module. Check that the “Cable type” shows 5 lead. If it shows 3 lead, make sure the used 5-lead ECG cable contains the necessary wiring for cable recognition (pins 0, 8 and 9 connected together).

21. Check that all the electrodes show OFF in the service menu and the message “Leads Off” is shown on the screen.

Connect all the leads together, for example to a suitable screwdriver. Check that all the electrodes show ON and the message “Asystole” appears.

Disconnect one of the leads and check that the corresponding electrode in the service menu shows OFF within 10 seconds from the disconnection, then reconnect the lead. Check the rest of the leads using the same method.

NOTE: When the ground lead (black) is disconnected all the electrodes should show OFF.

NOTE: The asystole and different leads off -messages are shown using certain priority, so even if only appear on the screen.

one of the leads is disconnected, the lead related leads off -message may not

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22. Connect a 3-lead cable to the monitor.

Connect the leads together (e.g. to a screwdriver).

Select one lead (I, II or III) for display.

Detach a lead from the screwdriver, and see that the monitor responds as described in the table below. Connect the lead again and check that “Leads off” message disappears.

Lead selection Lead to be detached Message

Lead I L/LA

R/RA N/LL

Lead II L/LA

R/RA N/LL

Lead III L/LA

R/RA N/LL

Leads off Leads off Leads off

Check that in any case the correspondence electrode (RA, LA or LL) shows off. Electrodes V and RL show off all the time. In cases I and N, II and R, III and L all electrodes show off.

23. Connect the leads to a patient simulator. The settings and checks with Dynatech NevaIIda MedSim 300 Patient Simulator:

ECG - BASE - BPM - 160 PACE - WAVE – NSR

Service check

Check that normal ECG waveform is shown, the HR value is 160 (±5) and the “Pacer count” value is not increasing in the service menu

ECG - PACE - WAVE – ASNC

Check that pacemaker spikes are shown on the ECG waveform, the HR value changes to 75 (±5) and the “Pacer count” value is increasing according to shown pacemaker spikes.

Set the pacemaker option off:

ECG - PACE - WAVE - NSR

6.2.6 Respiration measurement

24. Check that the “Resp Available” and “RESP Measurement” show both ON in the ESTP : ECG service menu. Do the following settings:

Menu - ECG & Resp – ECG Lead – II

and use a 3-lead ECG cable.

25. Check the respiration measurement with a patient simulator.

The settings and checks with Dynatech Nevada MedSim 300 Patient Simulator:

BASELINE IMPEDANCE LEAD SELECT-

switch - II/RL-LL

switch - 500

RESP - WAVE - NORM RATE - 20 OHMS - 1.0

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RATIO - 1/1 APNEA - OFF SHIFT – OFF

Check that the Resp waveform is shown and the RR value is 20 (±5). Change the position of the BASELINE IMPEDANCE -switch and check that appropriate RESP waveform and RR value are shown again within 30 seconds.

RESP - APNEA - 32 S

Check that the monitor gives the APNEA alarm.

NOTE: Make sure that only the ECG leads are connected to the simulator during the apnea test. If other cables are connected at the same time, the respiration signal from the simulator may be disturbed, and therefore, the APNEA alarm may not be activated.

NOTE: When you have the ECG service menu open, spikes will appear on the respiration waveform. These spikes represent the threshold level for detecting inspiration and expiration.

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6.2.7 Temperature measurement

26. Enter the ESTP : STP service menu:

Modules - ESTP : STP

Check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not increasing faster than by 50 per second. Check also that the STP board memories have passed the internal memory test, i.e. the “RAM”, “ROM” and “EEPROM” show all OK.

27. Check that the “Cable” and “Probe” show OFF for channel T1 when no probe is connected.

Connect a temperature test plug into the connector T1. Check that the “Cable” and “Probe” for T1 show ON and the corresponding temperature value appears on the monitor screen.

28. Check the temperature calibrations using temperature test plugs. If the deviation on a temperature reading on the screen is more than 0.1 °C, calibrate the temperature channels according to the instructions in the Technical Reference Manual.

Service check

29. Activate the temperature test by selecting Temp Test from the menu and pressing the ComWheel twice. When the message “Performing temp test” disappears from the digit field, check that no error messages appear and “Temp error” shows OFF for both channels in the service menu.

30. Check that the module configuration has been set correctly. The configuration in use is shown beside the text “Configuration” in the service menu and it can be either STP, ST or TP. Change the configuration in the Calibrations menu, if necessary.

6.2.8 Invasive blood pressure measurement

31. Check that the “Cable” and “Probe” for P1 show OFF. Plug a cable with an invasive blood pressure transducer into the front panel connector P1 and check that the “Cable” and “Probe” show ON and the corresponding pressure waveform appears on the screen.

Perform the same check also for the InvBP channel P2.

32. Calibrate the InvBP channels P1 and P2 according to the instructions in the Technical Reference Manual.

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33. Check the InvBP channels with a patient simulator.

The settings and checks with Dynatech Nevada MedSim 300 Patient Simulator:

SENSITIVITY -

ECG - BASE - BPM - 60 - BP - 1 - WAVE - ATM 2 - WAVE - ATM

switch - 5 µV/V/mmHg

Restore the normal monitoring screen by pressing the key

Connect cables from the channels BP1 and BP2 to the patient connectors P1 and P2. Zero the InvBP channels by pressing the ZERO ALL button on the monitor front panel.

Check that appropriate InvBP waveforms are shown and the InvBP values are approximately 120/80 (±3 mmHg) for the channel P1 and 15/10 (±2 mmHg) for the channel P2.

Check that the HR value is calculated from P1 when ECG is not measured (ECG cable disconnected).

6.2.9 SpO2 measurement

34. Check that the message “No probe” is shown when no SpO2 sensor is connected to the module. Connect an SpO is shown when the probe is not connected to a finger.

35. Connect the SpO waveform appear. Check that the HR value is calculated from SpO (P1) are not measured.

BP - 1 - WAVE - ART 2 - WAVE - CVP

probe onto your finger. Check that the reading of 95-99 and SpO2

Normal Screen.

finger probe to the module. Check that the message “Probe off”

when ECG and InvBP

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6.2.10 Non Invasive Blood Pressure measurement

36. Enter the NIBP module service menu:

Monitor Setup - Install/Service (Password 16-4-34) -

Service (Password 26-23-8) - Modules - NIBP

Check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not increasing faster than by 50 per second. Check also that the NIBP board memories have passed the internal memory test, i.e. the “RAM”, “ROM” and “EEPROM” show all OK.

37. Check the pump and valves.

Highlight Pneumatics from the NIBP menu. Connect a pressure manometer to the NIBP module cuff connector.

Select Start Pump and press the ComWheel. Check that the pump turns on and the pressure inside the tubing system starts to increase. Stop the pump by pressing the ComWheel again when the pressure reaches 280 mmHg.

Highlight Open Exh1. Press the ComWeel and check that the pressure inside the tubing system starts to drop, then press the ComWheel again. Check the other exhaust valve in the same way by selecting Open Exh2 from the menu. If necessary, turn the pump on again for a moment to increase the pressure inside the tubing system.

Highlight SET VALVE. Press the ComWheel and set the value under the text “Pulse Valve” to number 120 by turning the ComWheel. Press the ComWheel again and check that the pressure inside the tubing system starts to drop. Finish the test by selecting Previous Menu.

Service check

38. Check the NIBP tubing system for leakages.

Select Calibrations from the NIBP service menu.

Connect the pressure manometer to the NIBP module cuff connector. Start the active leak test from the menu by pressing the ComWheel. The module pumps a pressure of about 265 mmHg and then the pump stops. Wait for 15 seconds for the pressure to stabilize, then check that the pressure does not drop more than 6 mmHg per one minute. Release the pressure by pressing the ComWheel once more.

39. Calibration check.

Recalibrate the NIBP measurement. Remember to set the calibration protection back on after calibration.

Disconnect the pressure manometer. Select Calibrations and then highlight Calibration Check. Press the ComWheel and take down the zero offset values for both pressure transducers, B1 and B2. The values should be within ±10 mmHg.

Connect the pressure manometer to the cuff connector and check the calibration with pressures 100 mmHg, 200 mmHg and 260 mmHg. The zero offset value must be added to

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the displayed pressure value in order to determine the real pressure.

40. Check the watchdog timer activation pressure.

Select Pneumatics from the NIBP service menu.

Keep the pressure manometer connected to the cuff connector. Pump up the pressure very slowly and note the value on the manometer when you hear a signal from the loudspeaker. The pressure at where the watchdog timer should activate with an audible signal is

13 mmHg (11…15 mmHg).

Adjust the limit with the trimmer on the NIBP board, if necessary.

41. Check the watchdog timer.

Select Watchdog from the NIBP service menu.

Check the watchdog timer in the adult mode. Activate the timer by highlighting Test Adult and then pressing the ComWheel. Check that the time beside the text “Watchdog Interval” starts to run. Wait until you hear a signal from the loudspeaker and then check the time again. The time from the adult test should fall within 120-140 seconds.

Check the watchdog timer also in the infant mode by first selecting Test Infant from the menu. The time from the infant test should fall within 60-70 seconds.

42. Check the safety valve.

Select Safety Valve from the NIBP service menu. Keep the pressure manometer connected to the cuff connector.

NOTE: Make sure your pressure manometer can be used to measure pressures over 300 mmHg. If such a pressure manometer is not available, perform the check with an adult cuff that is connected around some round object, for example a calibration gas bottle.

Highlight Start Test. Start the adult safety valve test by pressing the ComWheel. Wait until the pump stops and the pressure is deflated. Check the pressure values “Max press” and “2 s after stop” for both transducers. All the values should be within 290 - 330 mmHg.

Highlight Adult. Press the ComWheel and check that the text changes now to INFANT. Select Start Test and wait until the pump stops and the pressure values on the screen have been updated. Check that the values “Max press” and “2 s after stop” are all now within

154...165 mmHg.

Return to the normal monitoring mode by pressing

Normal Screen.

43. Connect an adult NIBP cuff to the cuff connector and disconnect one of its hoses. Start NIBP measurement by pressing the key

NIBP, highlight Start Manual and press the

ComWheel and check that the message “Cuff loose” appears on the screen within 30 seconds. Reconnect the hose and then bend it with your fingers. Restart the measurement and check

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Service check

that the message “Cuff occlusion” appears on the screen within 30 seconds.

Check that automatic inflation limits are in use:

Menu – NIBP & Inv.Press - NIBP Setup&Alarm - Inflation Limits – Auto

Previous Menu

44. Connect the cuff onto your arm, highlight START VEN.STASIS in the NIBP & Inv.Press menu

and press the ComWheel. Check the module identifies the cuff, i.e. the text “Adult” appears in the NIBP digit field for a short moment.

Keep the pressure inside the cuff for about half a minute in order to see that the cuff is not leaking, then press the ComWheel again. Select

45. Keep the cuff on your arm and perform one NIBP measurement. Check that the monitor gives a reasonable measuring result.

46. Connect an infant cuff to cuff connector and wrap it around your fingers. Start NIBP measurement and check that the module identifies the cuff, i.e. the text “Infant” appears in the NIBP digit field. Cancel the measurement after the cuff identification.

Normal Screen.

6.2.11 Mainstream CO2 measurement

47. Enter the CO2 service menu and check that the “Timeouts”, “Bad checksums” and “send queue full” values are not increasing faster than by 50 per second.

48. Check that the message “No CO2 sensor” is displayed when there is no CO2 sensor connected. Connect a CO2 sensor to the monitor and check that the message “warming” is displayed.

49. Wait until the “warming” message disappears and the CO2 value appears on the screen. Breathe at least 5 times to the CO2 sensor adapter and make sure that the measured values are reasonable and the Respiratory value is calculated.

50. Perform the CO2 calibration check, if necessary.

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6.2.12 For Light Monitor

51. Perform electrical safety check and leakage current test.

52. Check that the monitor functions normally after the performed electrical safety check.

53. Clean the monitor with suitable detergent.

• Fill in all necessary documents.

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7 ADJUSTMENTS AND CALIBRATIONS

7.1 Pressure safety level detection “OFFSET”

Check from the service view (Modules - NIBP) that AD0 = 0 ±1. If it is not: remove the back panel and adjust the trimmer located NIBP boards upper edge AD0 to zero. Pump up the pressure very slowly and check that the value of AD5 changes from negative value to positive value under pressure 11..15 mmHg.

7.2 NIBP calibrations

The electronics of NIBP pressure measurement is calibrated at the factory. Zeroing pressure is automatically maintained by the processor. If the zero point of the pressure transducer drifts more than specified, an error message is given and the NIBP board should be recalibrated or replaced.

The calibration can be checked and recalibrated in the NIBP service menu.

The calibration of the primary pressure channel can also be checked from the NIBP setup menu (NIBP, NIBP Setup, Calibration Check). In this case the auto zeroing is performed at start - remove hose before entering to ensure atmospheric pressure to the pressure transducers - the primary pressure is displayed. The zero-offset value should then be zero.

Adjustments and calibrations

7.2.1 Calibration check

1. Enter Calibration menu.

2. Select Calibration Check and press the ComWheel.

3. Connect an external precision manometer to the monitor.

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4. Pump the following pressures to manometer and check the difference between the manometer and monitor pressure display:

Table 2 NIBP calibration check pressures

Pressure Max. error Example

0 mmHg

100 mmHg

200 mmHg

If the error of pressure channel B1 is larger than specified above, the module should be recalibrated. The error of B2 is allowed to be even twice as large because it has no effect on blood pressure measurement accuracy. However, it is recommended to recalibrate the module also when the error of B2 is larger than specified above to ensure best possible operation.

7.2.2 Calibration

1. Enter Calibration menu.

2. Remove hoses from front panel connector to enable proper zeroing.

3. Select Calibration. If it is not available, perform the steps A, B, and C.

NOTE: If there is the battery module in the monitor, remove it before calibration.

±9 mmHg (=zero offset)

100 + zero offset ±2 mmHg 98 ±2

200 + zero offset ±3 mmHg 198 ±2

-2

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A) Push the switch at the bottom (marked with the N letter) of the device to enable the

calibration. This enables menu selection “Protection”. The message “Calibration switch ON!” appears.

B) Select Protection OFF in the Calibration menu and push the ComWheel while pressing the

calibration switch.

C) Release the switch. Menu selection “Calibration” is now enabled, and “Protection” is

disabled. When the calibration is enabled, a message “Calibration not protected” appears.

• Start Calibration by pressing the ComWheel. Messages “ZEROING” and “ZEROED” will

appear in the NIBP message field. After this a pressure bar will appear.

• Connect an external mercury manometer with pump to device through the both tubes of the

hose - both transducers B1 and B2 must be calibrated simultaneously. Pump up to a pressure about 200 mmHg according to the manometer. Calibration is possible in the range 150 to 300 mmHg.

• Verify that both pressure values in the prompt field match the manometer reading. If not,

adjust by turning the ComWheel. When the values of the pressure bar and the manometer are equal, press the ComWheel to confirm the calibration. The message “Calibrating” will appear in the NIBP digit field. After a few seconds it is followed by “Calibrated”, which means that the calibration has succeeded, and the new calibration data has been saved into EEPROM.

− To set the protection on:

Push the calibration switch to the bottom and keep it at the bottom. Select “Protection” ON, push the ComWheel and release the switch.

• Switch off the monitor and then turn it on. Then perform Calibration Check (see the

preceding page) to verify the new calibration.

7.3 Temperature calibration

NOTE: For the temperature calibration, separate, accurate test plugs (25 °C and 45 °C) are needed. A test set of two plugs is available from GE Healthcare, order code 884515.

Adjustments and calibrations

Calibrate temperature when measured test values deviate more than ±0.1 °C, and always after LM-STP board replacement.

1. Enter ESTP : STP service menu. (Monitor Setup - Install/Service (password 16-4-34), Service (password 26-23-8), Modules).

2. Enter Calibrations menu.

3. Press the protect button at the bottom of the monitor and choose OFF in protect mode. Release the button.

4. Select Calibrate T1 in the service view.

5. Insert calibration plug (25 °C) into Temp connector.

6. Press the ComWheel two times.

7. Insert calibration plug (45 °C) into Temp connector.

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8. Press the ComWheel two times.

9. Press in the protect button at the bottom of the module and choose ON in protect mode. Release the button.

7.4 Invasive pressure calibration

Calibrate invasive pressure when the pressure transducer (probe) is replaced with a different type of transducer, and when LM-STP board is replaced.

1. Enter ESTP : STP service menu. (Monitor Setup Modules).

2. Enter Calibrations menu.

3. Connect a pressure transducer with a pressure manometer to the P1/P2 connector. Choose Calibrate P1 or Calibrate P2. Leave the transducer to room air pressure.

4. Press the ComWheel to start zeroing.

5. Supply a pressure of 100 mmHg to 300 mmHg to the transducer. The recommended pressure is 200 mmHg.

- Install/Service (password 16-4-34) - Service (password 26-23-8) -

6. Set the pressure on the display to match the pressure reading on the manometer and press the ComWheel. A tolerance of ±1 mmHg is allowed.

The text “Calibrated” will appear in the display.

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8 GENERAL TROUBLESHOOTING

8.1 Troubleshooting flowchart

Monitor does not start

Remove mains cable and

batteries and switch

monitor OFF

Connect mains cable

back and switch monitor

General troubleshooting

Power/CPU board may be

Yes

faulty. See power/CPU

board troubleshooting.

Backlight may be faulty. Replace the backlights.

OK?

Fan is

running?

Yes

Over voltage or over

current protector triggered

MAINS led

lit?

Yes

Try with full

batteries

OK?

NoNo

Yes

Check mains

cable

Faulty external power

supply, check fuses

Power

adapter output voltage

> 12.3 V?

Yes

MAINS led

lit?

Yes

Now OK?

Faulty power supply board

(check connectors)

LM_troublesh.vsd

Figure 3 General troubleshooting chart

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9 SERVICE MENU

9.1 SW version / unit ID

Software version and Unit ID are shown in the Service View menu.

1. Press

2. Enter Monitor Setup - Install/Service (password 16-4-34) - Service View

Software strings have the following format:

XXXX SW PPPPPP-N.N YYYY-MM-DD

Menu key.

(password 26-23-8).

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where:

XXXX = [MAIN] / [ESTP] / [NIBP] / [BOOT] / [PWR] PPPPPP = Program code N.N = Program version YYYY = Year MM = Month DD = Day

Hardware strings have the following format:

XXXXXXXX YYYY-MM-DD NNNNNNNN LLL

where:

XXXXXXXX = Control number of the board YYYY = Year MM = Month DD = Day NNNNNNNN = Code of the board LLL = Level

9.2 Language selection

Language can be selected in the Monitor menu.

Service menu

1. Press

2. Enter Monitor Setup - Install/Service (password 16-4-34) - Service View

Menu key.

(password 26-23-8) - Monitor.

9.3 Monitor configuration

Monitor configuration can be selected in the Monitor menu.

1. Press

2. Enter Monitor Setup - Install/Service (password 16-4-34) - Service View

NOTE: MS+SS- CO

Menu key.

(password 26-23-8) - Monitor.

should always be set to “NO”.

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10 GENERAL SPECIFICATIONS

Safety standards

Designed to meet IEC 60601-1 and CAN/CSA C22.2 No 601.1

10.1 Parameter specifications

10.1.1 ECG

Measured leads: I, II or III

Frequency response: 0.5...30 Hz (-3 dB, with 50 Hz reject filter)

0.5...40 Hz (-3 dB, with 60 Hz reject filter)

Sweep speed: 12.5, 25, or 50 mm/s

Heart rate/Pulse rate

Measurement range: 30...250 bpm

Measurement accuracy:

Display resolution: 1 bpm

Averaging time: 10 s

Display update time: 5 s

Alarms: asystole, leads-off detection, adjustable high and low alarm limits for heart

Gain range: 0.2...5.0 cm/mV

Allowable DC differential offset:

Pacemaker pulse detection: detection level: 5...500 mV, pulse duration: 0.5...2 ms

± 5 % or ± 5 bpm whichever is greater

rate

± 300 mV

10.1.2 Impedance respiration

Measuring range: impedance, 0.2...6 ohm

Max. base impedance: 5 kOhm

Respiration range: 4...120 resp/min

Accuracy:

± 5% or ± 5 resp/min whichever is greater

Averaging: 30 s

Update interval: 10 s

Display resolution: 1 resp/min

Sweep speed (trace): slow 0.62 mm/s, fast 6.25 mm/s

Alarms: apnea, adjustable high and low alarm limits for respiration rate

Gain range: 0.1...5 cm/ohm

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General specifications

10.1.3 Pulse oximetry (SpO2)/Pleth

Measurement method: red and infrared light absorption SpO2

Measurement range: 40...100%

Calibration range: 50...100 %; calibrated against functional oxygen saturation

Display resolution: 1 digit (1 % of SpO

Measurement accuracy

100...80 %, ± 2 digits (± 1SD)

)

80...50 %, ± 3 digits (± 1SD)

50...40%, unspecified

Display averaging time: adjustable 20 s, 10 s, or beat-to-beat

Display update time: 1 second

Display range: 40 to 100%

Wavelength of SpO2 probe LEDs:

Infrared LED: 900 nm

Red LED: 660 nm

Maximum energy of SpO2 probe LEDs

Infrared LED: 42 µJ/pulse

Red LED: 62 µJ/pulse

Alarms: probe off, no probe, no pulse, adjustable high and low, alarm limits for

SpO

Pulse rate

Measurement range: 30...250 bpm

Display resolution: 1 digit (1 bpm)

Measurement accuracy:

± 5 % or ± 5 bpm

Alarms: adjustable high and low alarm limits for pulse rate

Plethysmographic pulse waveform

Scales: proportional scaling: 2, 5, 10, 20, 50 mod % or automatic scaling

Accuracy is based on deep hypoxia studies using Datex-Ohmeda Finger Sensors on volunteered subjects. Arterial blood samples have been analyzed by a Radiometer OSM Co-oximeter. Refer to Datex-Ohmeda Sat Sensor directions for specific SpO

accuracy.

10.1.4 Temperature

Measurement units:

Measurement range:

Measurement resolution:

Measurement accuracy:

Probe type: Compatible with YSI 400 series

°C or °F

10...45 °C (50...113 °F)

0.1°C (0.1°F)

±0.1 °C (25...45.0 °C) ±0.2 °C (10...24.9 °C)

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10.1.5 Non-invasive blood pressure

Measurement principle: Oscillometric with linear deflation

Deflation speed: Heart rate dependent, 5...13 mmHg/s

Measurement range: Adult 25...260 mmHg

child 25...190 mmHg infant 15...140 mmHg

Pulse rate range: 30...250 bpm

Measurement intervals: manual and selectable intervals 1, 2.5, 3, 5, 10, 15, 30, 60 min or

continuous STAT mode

Numeric display: systolic, diastolic and mean arterial pressure

Alarms: cuff loose, cuff occlusion, adjustable high and low alarm limits for systolic,

diastolic, mean or off

Typical measurement time: adult 23 s and infant 20 s

Safety features: adult child infant

Initial inflation pressure (mmHg): 185 150 120

Max. inflation pressure (mmHg): 280 200 150

Overpressure limit (max. 2 s; mmHg): 320 220 165

Max. inflation time (>15 mmHg, min):

Safety valve (mmHg): 320 220 165

2 2 1

10.1.6 Invasive blood pressure (LMP1 models only)

Measurement range: -40...320 mmHg

Measurement accuracy:

Numeric display

Range: 40...320 mmHg

Resolution: 1 mmHg

Averaging: over 5 s or end-expiratory filtering

Display update: every 5 s

Alarms: adjustable high and low alarm limits for systolic, diastolic and mean

Waveform display

Range: -30...300 mmHg

Scales: adjustable in 10 mmHg increments

Pulse rate

Measurement range: 30...250 bpm

Resolution: 1 bpm

± 5 % or ± 2 mmHg

pressures, or off

Accuracy:

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± 5 % or 5 bpm

General specifications

Transducer sensitivity:

5 µV/V/mmHg, 5 Vdc, max.20 mA

Pressure filter: 22 Hz (-3 dB) for P1, Art

9 Hz (-3dB) for P2, CVP, PA, ICP

10.1.7 CO2 (option N-LCM)

Principle of operation: Mainstream, non-dispersive infrared, single beam, single frequency, fully

chopped, ratiometric

Measurement range: 0-99 mmHg / 0-13 vol-% / 0-13 kPa

Measurement rise time: 100 ms

Accuracy

Respiration rate measurement

range:

Pressure compensation: automatic, continuous

Gas compensations: User selectable O

Calibration: No routine calibration required; automatic self-calibration every 30 ms

Alarms: adjustable high and low alarm limits for Et/Fi CO

Cable length: 3 meters

Warm-up time: < 80 seconds from 25°C

Response time: 100 ms

**) typical value in conditions 22.5°C, 760 mmHg, CO2 in balance air.

**)

0-40 mmHg /0-5.3 vol-%: ± 2 mmHg / ±0.3 vol-% 41-76 mmHg /5.3-10%: ± 5% of reading 77-99 mmHg /10-13%: ± 10% of reading

4-150 breaths/minute

, N2O or OFF

sensor weight: < 18,5 g (excluding cable)

and respiration rate

10.2 General

Monitor (WxDxH): 325 x 160 x 210 mm / 12.8 x 6.3 x 8.3”

Battery module (WxDxH): 290 x150 x 40 mm / 11.4 x 5.9 x 1.6”

Weight w/o batteries: 4.2 kg/9.3 lb.

Weight w/ batteries: 6.1 kg/13.5 lb.

Input voltage: 12.5 V DC

Power consumption 17.5 ... 37 W depending on the options used

Safety standards: Designed to meet IEC 60601-1, CAN/CSA C22.2 No. 601.1-M90 and UL

2601-1, CE-marking according to Directive 93/42/EEC

Output specifications: RS-232 computer serial output

Defibrillation synchronization signal (According to ANSI/AAMI EC13-1992. Time interval from R peak to sync pulse output Nurse Call Analog output, 2 fixed and 2 freely configurable outputs

Printing: Local printing with laser printer (PCL5), or via network.

Recorder option: Built-in three channel thermal array recorder.

< 35 ms.)

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10.2.1 Environmental conditions

Operating temperature:

0...40 °C (32...104 °F),

CO2 option +5…40 °C (41…104 °F) mainstream sensor +10...40 °C (50...104 °F)

Battery charging temperature 10...40 °C (50...104 °F),

Storage and transport temperature:

-30...70 °C (-22...158 °F),

-30...70 °C (-22...158 °F) with CO

-30...50 °C (-22...122 °F) for batteries

Relative humidity: 5...95 % non-condensing

Atmospheric pressure: 660 to 1060 mbar (500 to 800 mmHg)

For accessories, please refer to the Supplies and Accessories catalogue. Specifications subject to change without notice.

10.3 Option codes

Description Order code

S/5 Light Monitor F-LM1 w/ ECG, Resp, NIBP, SpO2, Temp

S/5 Light Monitor F-LMP1 w/ ECG, Resp, NIBP, SpO

Light Monitor Power Adapter N-LPOW Power adapter, 110/220 V

Light Monitor Battery Module F-LBAT Battery module w/ two batteries

Light Monitor Recorder N-LREC Built-in 3-channel thermal array recorder

S/5 Light Monitor CO

Mainstream CO

Option N-LCM Mainstream CO2

sensor 902300

DataCard Option N-LDATA

Network Option N-LNET

DataCard & Network Option N-LDNET

External Battery Charger w/two batteries N-LCHGR

, Temp, 2xIBP

10.4 Display

Display size and type: 8.4” Active Matrix Color TFT LCD

Number of traces: Up to 4

Display resolution: 640 x 480

Display layout: User-configurable

Backlight: 2 x CCFT, Backlight lifetime 50,000 h

Integrated direct function keys, menu key and ComWheel

10.4.1 Slave display

Type VGA

Display resolution: 640 x 480

Dot clock 25 MHz. Black level 0 V, full intensity 0.7 V

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for selections and adjustments in menus.

General specifications

10.4.2 Trends

Graphical: 2, 4, 12 and 24 h

Numerical: all parameters, sampled every 5 min and after NIBP measurement

Trend cursor: Both in graphical and numerical trends

10.4.3 Alarms

• Adjustable high and low alarms for HR, Resp, NIBP, SpO2, Temp, CO2 (Et/Fi) and Invasive

Pressures Alarm system classified according to priority; visually with color and audio tone coded

• Central alarm display and adjustment page

• 10 min graphical mini trends referenced to set alarm limits

• Automatic alarm limits function; alarm limits automatically calculated from current

parameter reading when selected.

• Alarms history displaying 10 latest alarms

• The maximum alarm delay of the alarm at the monitor signal output to network is 1.1

seconds.

• The invasive pressure alarm delay does not comply with the requirements of the invasive

pressure standard IEC 60601-2-34.

10.5 Light Monitor battery module (optional) (w/2 battery slots)

Type: NiCd battery Capacity:

Recharging: When connected to line power or DC (N-LPOW) Charging time: 3.5 h / battery to full capacity

Up to 2 hours (1 h/batt) typical on full charge at 23 °C /73 °F

10.6 Light Monitor backup battery (optional)

Type: NiCd battery Capacity:

Recharging: When connected to line power or DC (N-LPOW) Charging time: 1.5 h / battery to full capacity

Up to 30 min typical on full charge at 23 °C /73 °F

10.7 External power adapter

AC voltage range:

Allowed AC voltage fluctuations: 100 V -10%...120 V +10%, 220 V -10%...240 V +10% DC output voltage: 12.5 V and 18.5 V Protection class: Class I Grounding: Hospital grade

220-240 V /100-120 V ∼ 50/60 Hz

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

10.8 Light External Battery Charger (optional)

Mains voltage 100...240 VAC

Max. input power 90 VA

Mains frequency 50...60 Hz

Charge current

Discharge current

Typical charging time 1 h per battery / 1.8 Ah

1.7 A, ± 10 %

0.6 A, ± 10 %

1.5 h per battery / 2.8 Ah

10.9 Output specifications

WARNING Use only cables with shielding against electromagnetic interference.

10.9.1 Nurse Call and Defibrillator Synchronization Signals

The nurse call signal is generated when the alarm is activated. Alarm silencing suppresses the nurse call signal.

The defibrillator synchronization digital signal is generated by ECG. The pulse will be given on each rising R-wave edge on QRS-complex. The pulse amplitude is 5 V and width is 10 ms. When the def sync signal is active, the signal is set to state 1. After 10 ms the state is set to 0. A new pulse will not be generated before the previous pulse is deactivated.

Document No. M1051339

APPENDICES A-C

APPENDICES

APPENDIX A, Functional check form

APPENDIX B, Service check form

APPENDIX C, EMC Guidance

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

Document No. M1051339

FUNCTIONAL CHECK FORM

APPENDIX A, Functional check form

Datex Ohmeda S/5

Customer

Service

Service engineer

Light Monitor

Date

Monitor configuration

Monitor model:

F-LM1

Parameter measurement options Data collecting and data management options

N-LCM Mainstream CO

N-LNET Network

N-LDATA DataCard

N-LDNET DataCard + Network

Model with 2 InvBP measurements, F-LMP1

N-LREC Recorder

OK = Test OK N.A. = Test not applicable Fail = Test Failed

General functional inspection

5.1 General functional inspection

5.1.1 Recorder test

5.1.2 PCMCIA card test

5.1.3 Network test

5.1.4 ECG board test

5.1.5 STP board test

5.1.6 NIBP board test

5.1.7 Mainstream CO2 test

OK N.A. Fail

A-1(2)

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

Performance checks

1. Monitor screen configuration

2. SpO2 check

3. InvBP simulation

4. SpO2: No probe and Probe off messages

5. SpO2 value (95-99 %) and HR value

6. SpO2: No probe message

7. NIBP measurement

8. CO2 sensor

9. CO2 check

Notes

OK N.A. Fail

Signature

-2(2)

Document No. M1051339

SERVICE CHECK FORM

APPENDIX B, Service Check Form

Datex Ohmeda S/5

Customer

Service

Service engineer

Light Monitor

Date

Monitor configuration

Monitor model:

F-LM1

Parameter measurement options Data collecting and data management options

N-LCM Mainstream CO

N-LNET Network

N-LDATA DataCard

N-LDNET DataCard + Network

Model with 2 InvBP measurements, F-LMP1

N-LREC Recorder

OK = Test OK N.A. = Test not applicable Fail = Test Failed

6.2.1 Visual inspection

6.2.2 Recorder test

6.2.3 PCMCIA card test

6.2.4 Network test

6.2.5 ECG measurement

6.2.6 Respiration measurement

6.2.7 Temperature measurement

6.2.8 InvBP measurement

6.2.9 SpO2 measurement

6.2.10 NIBP measurement

OK N.A. Fail

B-1(2)

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

6.2.11 Mainstream CO2 measurement

OK N.A. Fail

6.2.12 For Light Monitor

Electrical safety check and leakage current test

Monitor functions after electrical safety check and leakage current test

Cleaning

Notes

Signature

B-2(2)

Document No. M1051339

APPENDIX C, EMC Guidance

EMC GUIDANCE

Guidance and manufacturer’s declaration – electromagnetic emissions

The S/5 Light Monitor is intended for use in the electromagnetic environment specified below. The

customer or the user of the S/5 Light Monitor should assure that it is used in such an environment.

Emissions test Compliance Electromagnetic environment - guidance

RF emissions

CISPR 11

RF emissions

CISPR 11

Harmonic emissions

IEC 61000-3-2

Voltage fluctuations/

flicker emissions

IEC 61000-3-3

Group 1

Class A

Complies

The S/5 Light Monitor uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

The S/5 Light Monitor is suitable for use in all establishments other than domestic and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

C -1(4)

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

Guidance and manufacturer’s declaration – electromagnetic immunity

The S/5 Light Monitor is intended for use in the electromagnetic environment specified below. The customer or the user of the S/5 Light Monitor should assure that it is used in such an environment.

Immunity test IEC 60601 test

level

Electrostatic discharge (ESD) IEC 61000-4-2

Electrical fast transients/bursts IEC 61000-4-4

±6 kV contact

±8 kV air

±2 kV for power

supply lines ±1 kV for input/output lines

Surge IEC 61000-4-5

±1 kV differential mode ±2 kV common mode

Voltage dips, short interruptions and voltage variations on power supply lines IEC 61000-4-11

<5 % U (>95 % dip in U for 0.5 cycle

40 % U (60 % dip in U for 5 cycles

70 % U

(30 % dip in U for 25 cycles

<5 % U

(>95 % dip in U for 5 sec

Compliance level Electromagnetic environment -

guidance

±6 kV contact

±8 kV air

Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30 %.

±2 kV or ±1 kV power supply lines ±1 kV for input/output lines

for

Mains power quality should be that of a typical commercial or hospital

environment. In case of disturbance it is recommended to use transient filter on power input lines.

±1 kV differential mode ±2 kV common

Mains power quality should be that of a typical commercial or hospital environment.

mode

<5 % U

)

(>95 % dip in U

for 0.5 cycle

40 % U

)

(60 % dip in U

)

for 5 cycles

70 % U (30 % dip in U

)

Mains power quality should be that of a typical commercial or hospital

)

environment. If user of the S/5 Light Monitor requires continued operation during power mains interruptions, it is recommended that the S/5 Light Monitor be powered from an uninterruptible power supply or a battery.

for 25 cycles

<5 % U

)

(>95 % dip in U

)

for 5 sec

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

3 A/m 3 A/m

Power frequency magnetic field should be at levels characteristic of a typical location in a typical commercial or hospital environment.

NOTE UT is the a.c. mains voltage prior to application of the test level.

±1 kV for mainstream CO2 measurement

C-2(4)

Document No. M1051339

APPENDIX C, EMC Guidance

Guidance and manufacturer’s declaration – electromagnetic immunity

The S/5 Light Monitor is intended for use in the electromagnetic environment specified below. The customer or

the user of the S/5 Light Monitor should assure that it is used in such an environment.

Immunity test IEC 60601 test

level

Compliance

level

Electromagnetic environment - guidance

Portable and mobile RF communications equipment should be used no closer to any part of the S/5 Light Monitor, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

Recommended separation distance

Conducted RF

IEC 61000-4-6

Radiated RF

IEC 61000-4-3

3 V

rms

3 Vrms

d = 1.2

150 kHz to 80 MHz

3 V/m

d = 1.2

80 MHz to 2.5 GHz

d = 2.3

where P is the maximum output power rating of

P 80 MHz to 800 MHz

P 800 MHz to 2.5 GHz

the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in metres (m).

Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, should be less than the compliance level in each frequency range.

Interference may occur in the vicinity of equipment marked with the following symbol:

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by

absorption and reflection from structures, objects and people.

Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land

mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicated theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the S/5 Light Monitor is used exceeds the applicable RF compliance level above, the S/5 Light Monitor should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the S/5 Light Monitor.

Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

C -3(4)

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

Recommended separation distances between portable and mobile RF communications equipment and the S/5 Light Monitor.

Recommended separation distances between portable and mobile RF communications

equipment and the S/5 Light Monitor.

The S/5 Light Monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the S/5 Light Monitor can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the S/5 Light Monitor as recommended below, according to the maximum output power of the communications equipment.

Rated maximum

output power of

transmitter

0.01 0.12 0.12 0.23

0.1 0.38 0.38 0.73

1 1.2 1.2 2.3

10 3.8 3.8 7.3

100 12 12 23

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.

NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range

applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is

affected by absorption and reflection from structures, objects and people.

150 kHz to 80 MHz

Separation distance according to frequency of transmitter

d = 1.2

80 MHz to 800 MHz

d = 1.2

800 MHz to 2.5 GHz

d = 2.3

C-4(4)

Document No. M1051339

Datex-Ohmeda S/5

Light Monitor

Planned Maintenance Instructions

Datex-Ohmeda, Inc.

P.O. Box 7550, Madison WI 53707-7550, USA Tel. +1-608-221-1551

Fax +1-608-222-9147

All specifications are subject to change without notice.

Document No. 8001934-2

September 2005

GE Healthcare Finland Oy

Helsinki, Finland

P.O. Box 900

FIN-00031 GE, FINLAND

Tel: +358 10 39411

Fax : +358 9 146 3310

www.datex-ohmeda.com www.gehealthcare.com

TABLE OF CONTENTS

S/5 Light Monitor Planned Maintenance Instructions

TABLE OF CONTENTS i

1. PLANNED MAINTENANCE 1

1.1 Introduction......................................................................................................................................... 1

1.2 Recommended tools and accessories................................................................................................... 1

1.3 Recommended parts ........................................................................................................................... 1

2. INSTRUCTIONS 2

2.1 Visual inspection .................................................................................................................................2

2.2 General functional inspection............................................................................................................... 3

2.3 Screen setup ....................................................................................................................................... 4

2.4 Hemodynamic tests ............................................................................................................................. 4

2.5 Trend test ............................................................................................................................................6

2.6 Recorder unit test ................................................................................................................................ 6

2.7 Network test ........................................................................................................................................6

2.8 DataCard test ...................................................................................................................................... 7

2.9 Service Log.......................................................................................................................................... 7

2.10 Electric safety check ............................................................................................................................ 7

APPENDIX A 9

Planned maintenance form A-1

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

Document No. 8001934-2

1. PLANNED MAINTENANCE

1.1 Introduction

These instructions include procedures for planned maintenance (PM) for Datex-Ohmeda S/5 Light Monitor. The planned maintenance is recommended to be performed once a year after the monitor installation.

The instructions are planned for the maximum functional configuration. Perform the procedures in the ascending order and skip the items that do not correspond to the monitor configuration.

The instructions include a check form to be filled in when performing the corresponding procedures.

Planned maintenance

The symbol

" in the instructions means that the performed procedure should be signed in the

check form.

All menu selections related to

Datex-Ohmeda products are written in following typeface:

Monitor Setup - Install/Service (Password 16-4-34) -

Service (Password 26-23-8) – Modules - ESTP - ECG

Menu selections related to other products e.g. simulators are written in following typeface:

1. RESP - WAVE - NORM

- RATE - 20

1.2 Recommended tools and accessories

Tool Order No.

Patient simulator for ECG, Impedance Resp and BP

Pressure manometer -

Temperature test set 884515

5-lead ECG cable -

SpO2 finger probe OXY-F4-N

InvBP transducer 78000

Adult NIBP cuff 572435

Adult NIBP hose 877235

Infant NIBP hose 877514

Infant NIBP cuff 877407

Screwdriver -Pozidrive- type

1.3 Recommended parts

Part Order No. Notes

Fan filter 886841

Recorder paper 74205 if N-LREC option installed

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

2. INSTRUCTIONS

• Switch the monitor to standby.

• Disconnect all the connection cables from the monitor’s rear panel.

2.1 Visual inspection

1. Make visual inspection for all external parts of the monitor. Check e.g. that the power cord receptacle is intact in the power adapter.

2. Connect the power cord to the power adapter and check the supply voltage from the power adapter’s connector. PIN 1 voltage must be 12.7 V without load (Figure 1). If necessary, adjust the 12.7 V with trimmer R23 (Figure 2).

Pin Signal

1 2 3 4

12.7 V

18.5 V

Figure 1 Power adapter’s voltages

R23

Figure 2 Adjustment trimmer R23 in N-LPOW

GND

Document No. 8001934-2

3. Clean or replace the fan filter.

4. Clean the recorder unit, if necessary.

5. Check that all shielding flaps (6 pcs) are properly closed. (Figure 3)

Shielding Flaps (6 pcs)

Figure 3 LM1-STP board EMC covers

Planned maintenance

2.2 General functional inspection

6. Connect the power cord to the power adapter and the power adapter cable to the Light Monitor. Check that the green LED turns on in the power adapter and the LED on the lower right-hand corner of the monitor turns on or starts flashing. Check that both Battery charge status LEDs turn on or start flashing.

7. Switch the monitor on. Check that the monitor starts up properly, i.e.

− both alarm LEDs turn on and off

− the fan starts running

− the start-up sound is heard from the loudspeaker

− the normal monitoring screen appears

− no error messages appear on the screen *)

− if the monitor contains a recorder, two lines of start-up information should be

recorded

− check that the time and date are correct, adjust if necessary

− if the monitor contains an F-LBAT or N-LBB, check that the battery symbol is

displayed:

*) “Check network connectors” will appear, if the N-LNET or N-LDNET option is installed.

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

8. Enter the keyboard menu and select Dummy Press.

Monitor Setup - Install/Service (Password 16-4-34) -

Service (Password 26-23-8) –Keyboard – Dummy Press

Press the function keys one by one. Check that each key generates a sound from the loudspeaker and the corresponding text.

2.3 Screen setup

Configure the monitor screen according to the monitor configuration so that all necessary parameter information is displayed.

NOTE: The RESP waveform or Digit Field has to be selected on the screen before the respiration measurement can be turned on.

2.4 Hemodynamic tests

ECG measurement tests

9. Enter the ECG service menu and check that the “Timeouts”, “Bad checksums” and “Bad c-s by mod” values are not increasing faster than by 50 per second and the ECG/RESP board memories have passed the internal memory test, i.e. “RAM”, “ROM” and “EEPROM” all state OK.

10. Connect a 5-lead ECG cable to the monitor. Check that the “Cable type” shows 5 lead. If it shows 3 lead, make sure the 5-lead ECG cable being used contains the necessary wiring for cable recognition (pins 0, 8 and 9 connected together).

11. Check that all the electrodes show OFF in the service menu and the message “Leads Off” is shown on the screen.

Connect the patient simulator and check that all parameter information is displayed as

configured on the screen, and that the waveforms correspond to the simulator settings. Switch off the simulator and check that “Asystole” and “Apnea” are displayed.

Temperature measurement tests

12. Enter the STP service menu and check that the STP board memories have passed the internal memory test, i.e. “RAM”, “ROM” and “EEPROM” all show OK.

13. Check the temperature calibrations with the temperature test plugs. Calibrate if necessary.

14. Check that the protection for temperature calibration is on: “Protect key” text in the menu should state OFF “Protect mode” text should state ON.

Document No. 8001934-2

Non invasive blood pressure measurement tests

15. Enter the NIBP service menu and check that the NIBP board memories have passed the internal

memory test, i.e. “RAM”, “ROM” and “EEPROM” all show OK.

16. Check the NIBP tubing system for leakages in Calibrations - Active Leak Test menu. The

pressure must not drop more than 6 mmHg per one minute.

17. Calibrate the NIBP measurement and check the calibration with 200mmHg pressure.

18. Check the Watchdog timer activation pressure in the Pneumatics service menu. The audible

signal must activate at 11..15 mmHg pressure. If necessary, adjust the limit with the trimmer on the NIBP board.

NOTE: If the limit was adjusted, recalibration is needed.

19. Check the NIBP watchdog timer in the Watchdog service menu in the infant mode. The time for

the infant test should be 60-70 seconds.

20. Check the safety valve functions in the Safety Valve service menu.

NOTE: Make sure the pressure manometer can be used to measure pressures over 300 mmHg. If such a pressure manometer is not available, perform the check with an adult cuff that is wrapped around some round object, for example a calibration gas bottle.

The pressure values “Max press” and “2 s after stop” for both transducers should be within 290

- 330 mmHg for Adult and 154 - 165 mmHg for Infant.

21. Connect an infant cuff to the monitor, start the measurement and check that the infant cuff is identified correctly. Cancel the measurement.

22. Attach an adult NIBP cuff onto your arm and perform one NIBP measurement. Check that the module identifies the cuff, i.e. the text “Adult” appears in the NIBP digit field for a short time. Check that the monitor gives a reasonable measurement result.

Planned maintenance

SpO2 measurement tests

23. Check that the message “No probe” is displayed when no SpO2 sensor is connected. Connect a

finger probe to the monitor and check that the message “Probe off” is displayed when the

SpO

probe is not connected to a finger.

24. Attach the SpO waveform is displayed and the SpO Check that the HR value is calculated from SpO connected.

25. Remove the SpO Disconnect the sensor from the monitor and check that “No probe” message is displayed.

sensor to your finger and check that after the message “Pulse search” the pleth

value is in the expected range.

when ECG and InvBP (P1) cables are not

sensor from your finger and check that the message “Probe off” is displayed.

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

Invasive blood pressure measurement tests

26. Check the InvBP channels with a patient simulator. The values and waveforms should correspond to the simulator settings.

Note: In case you evaluate the measurement accuracy with the simulator, add simulator's accuracy specification to the one of the monitor.

Mainstream CO2 test

27. Enter the CO2 service menu and check that the “Timeouts”, “Bad checksums” and “send queue full” values are not increasing faster than by 50 per second.

28. Check that the message “No CO Connect a CO

29. Wait until the “warming” message disappears and the CO2 value appears on the screen. Breathe at least 5 times to the CO reasonable and the Respiratory value is calculated.

30. Perform the CO

sensor to the monitor and check that the message “warming” is displayed.

calibration check if necessary.

sensor” is displayed when there is no CO2 sensor connected.

sensor adapter and make sure that the measured values are

2.5 Trend test

31. Check that the monitor is capable of storing the trend information and temporary settings over 2 minute standby.

2.6 Recorder unit test

32. Open the paper compartment cover. Check that the message ‘Recorder: Cover open’ appears on the screen, then close the cover.

33. Push the “Recorder Start/Stop” button on the recorder unit and check that the recorder starts

recording the selected waveforms. Push the button again to stop recording. Check that the quality of the recordings is acceptable.

2.7 Network test

34. Check that the Mon-Net cable connector and the Identification plug are clean and intact, then connect them to the monitor.

Document No. 8001934-2

Planned maintenance

35. Check that the monitor connects to the Datex-Ohmeda Network, i.e. the network symbol

is displayed on the upper right-hand corner of the screen.

A message regarding the connection to Datex-Ohmeda Central should appear in the message field on the screen.

36. Check in the Monitor - Communication service menu that:

− the “location ID number” matches with the ID plug connected to X3

− the packets and bytes IN is increasing slowly

− the packets and bytes OUT is increasing fast

− “connections” shows the names of the connected networks

− the counters for data errors (“CRC”, “Frame”, “Transm.”) are stable

NOTE: The counters may show values greater than 0. However, any values increasing

continuously indicate a problem.

37. Check that the counters for hardware errors (“Intern.”, “Missed”, “FIFO”, “Overrun”) all show 0.

2.8 DataCard test

Insert a DataCard labeled “Data” in the DataCard slot. Check that the message “Data Card

inserted” appears in the message field and the DataCard symbol upper right-hand corner of the monitor.

2.9 Service Log

38. Check the Service Log for possible problems. If the monitor contains a recorder unit, record the Service Log onto the recorder by selecting Record Log.

39. Clear the content of the Service Log by selecting Reset Log from the menu.

2.10 Electric safety check

40. Perform the electrical safety check and leakage current test.

41. Check that the monitor functions normally after the performed electrical safety check.

42. Switch the monitor to standby, disconnect the power cord and perform final cleaning.

43. Fill in all necessary documents.

is displayed on the

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

Document No. 8001934-2

Appendix A, Planned maintenance form

APPENDIX A

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

Document No. 8001934-2

PLANNED MAINTENANCE FORM

Datex Ohmeda S/5™ Light Monitor

Planned maintenance form

Customer

Service

Service engineer

Date

Monitor configuration

Monitor model:

F-LM1

Parameter measurement options Data collecting and data management options

N-LCM Mainstream CO2

N-LNET Network

N-LDATA DataCard

N-LDNET DataCard + Network

OK = Test OK N.A. = Test not applicable Fail = Test Failed

Model with 2 InvBP measurements, F-LMP1

N-LREC Recorder

2.1. Visual inspection

2.2. General functional inspection

2.3. Screen setup

2.4. Hemodynamic tests

ECG

Temperature

Non Invasive

SpO2

Invasive

CO2

2.5. Trend test

OK N.A. Fail

A-1(2)

Document No. 8001934-2

Datex-Ohmeda S/5 Light Monitor

2.6. Recorder unit test

2.7. Network test

2.8. DataCard test

2.9. Service Log

2.10. Electric safety check

Notes

Used spare parts

Fan filter

Recorder paper

OK N.A. Fail

Signature

A-2(2)

Document No. 8001934-2

CPU

Datex-Ohmeda, Inc.

P.O. Box 7550, Madison WI 53707-7550, USA Tel. +1-608-221-1551

Fax +1-608-222-9147

GE Healthcare Finland Oy

Helsinki, Finland

P.O. Box 900

FIN-00031 GE, FINLAND

Tel: +358 10 39411

Fax : +358 9 146 3310

www.datex-ohmeda.com www.gehealthcare.com

TABLE OF CONTENTS

CPU

TABLE OF CONTENTS i TABLE OF FIGURES i 1 FUNCTIONAL DESCRIPTION 1

1.1 General................................................................................................................................................ 1

1.1.1 386EX processor (D8) .................................................................................................................. 2

1.1.2 Real time clock and battery back-up RAM (D15)............................................................................ 2

1.1.3 Serial controller, UART (D19) ........................................................................................................ 3

1.1.4 Audio generator (D6, D14, N4) ..................................................................................................... 3

1.1.5 Display controller (D1) ................................................................................................................. 3

1.1.6 ROM (D18, D21) .......................................................................................................................... 3

1.1.7 RAM (D4-D7) ...............................................................................................................................3

1.1.8 Loading a new main software ....................................................................................................... 3

1.2 Connectors and signals ........................................................................................................................ 4

1.2.1 Backlight inverter connector (X1) .................................................................................................. 4

1.2.2 CO2 connector (X2)...................................................................................................................... 4

1.2.3 JTAG connector (X3) ..................................................................................................................... 4

1.2.4 ISA bus connector (X4) ................................................................................................................. 5

1.2.5 Loudspeaker connector (X5)......................................................................................................... 6

1.2.6 Power supply board connector (X6) ...............................................................................................7

1.2.7 Recorder connector (X7) ............................................................................................................... 8

1.2.8 Module bus connector (X8)........................................................................................................... 9

1.2.9 Display connector (X9) ............................................................................................................... 10

2 SERVICE PROCEDURES 11

2.1 General service information ................................................................................................................11

2.2 Replacing the real time clock battery................................................................................................... 11

2.3 Replacing the CPU board .................................................................................................................... 12

3 TROUBLESHOOTING 13

3.1 Troubleshooting flowchart................................................................................................................... 13

3.2 Troubleshooting chart.........................................................................................................................14

3.3 Error messages ..................................................................................................................................14

4 SERVICE MENU 15

TABLE OF FIGURES

Figure 1 CPU board block diagram .....................................................................................................................1

Figure 2 Detaching the battery and the battery location..................................................................................... 11

Figure 3 CPU board troubleshooting chart ........................................................................................................ 13

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

Document No. M1051339

1 FUNCTIONAL DESCRIPTION

1.1 General

The CPU board performs the central data processing of the Light Monitor.

Functional description

The operating principle of the CPU board is illustrated in

figure 1. The CPU board is based around

an embedded 386EX processor. Additionally, the CPU board includes a real time clock, battery back-up RAM, serial controller, audio generator, D/A converter and display controller connected to the external processor bus.

The CPU board includes two flash memory circuits. One of the circuits contains the boot code and the other contains the main software code. The CPU board also includes 4 MB dynamic RAM.

The display, recorder and loudspeaker are all connected directly to the CPU board. The ESTP and NIBP board are connected to the CPU board via the power supply board. There is also an ISA connector for PC/E board (PCMCIA & Ethernet board).

The CPU board uses 3.3 V, 5 V and 12 V operating voltages.

512Kbyte

FLASH

boot&trend

2Mbyte FLASH

(code)

RTC

& NVRAM

(setup)

Quart

386 ex

DRAM address & ctrl

4Mbyte

DRAM

(code & data)

data bus

address & ctrl

PLD

DRAM & ISA

ctrl signals

bus buffers

D/A

converter

VGA

controller

display memor y

µP

supervisor

E2PROM

(config.)

Audio

attenuator

ISA

connector

Figure 1 CPU board block diagram

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

1.1.1 386EX processor (D8)

The 386EX processor is based on a 386SX core. Additionally the processor includes the following features:

Programmable chip select lines

• Boot block flash

• Code flash

• DRAM

• Real time clock

• Audio generator

• Serial controller

• DAC

Interrupt controller

• Serial controller

• ISA connector

Timer/counter

• Audio generator

I/O lines

• Code Program enable

• Parameter Unit reset

• Nurse call

• Recorder reset

• Defibrillator synchronization

• Watchdog Refresh

• CO

shutdown

Serial controller

• Parameter Unit bus

• Recorder

Bus interface unit

Refresh unit

• DRAM refresh

1.1.2 Real time clock and battery back-up RAM (D15)

The real time clock is a surface mounted circuit with a removable battery backup. The clock integrates 32 kbyte RAM containing the monitor setup. The battery lifetime is approximately 7 years.

Document No. M1051339

CAUTION Discard lithium battery according to local regulations.

1.1.3 Serial controller, UART (D19)

The serial controller is a four channel UART used for serial communication with the following units:

• Serial I/O

• CO

• Power supply unit

Unit

1.1.4 Audio generator (D6, D14, N4)

The audio frequency signal is generated by a timer integrated to the processor. The signal is first attenuated and then transmitted to the output amplifier.

1.1.5 Display controller (D1)

The display controller is a single chip controller connected directly to the external processor bus. A 256k × 16 DRAM circuit (D2) is used as display memory. The memory is directly connected to the display controller. Display controller drives the LCD display and the external VGA-CRT connector simultaneously.

Functional description

1.1.6 ROM (D18, D21)

The ROM consists of two flash memory circuits. One of the circuits contains the boot code and the nonvolatile trends memory, the other contains the main software code. The main software can be reloaded through the serial I/O.

1.1.7 RAM (D4-D7)

The RAM consists of 2 × 16 M DRAM circuits controlled by a PLD circuit. The address bus is multiplexed for the RAS and CAS addresses.

1.1.8 Loading a new main software

The main software is loaded with a PC connected to the serial I/O connector. The main software code is transmitted from the PC memory to the CPU board. The program is stored into the flash memory. The loading takes approximately 5 minutes when 115 kbps transfer rate is used.

Document No. M1051339

Datex-Ohmeda S/5 Light Monitor

1.2 Connectors and signals

1.2.1 Backlight inverter connector (X1)

Pin Signal I/O Description

1 +5V O Supply voltage

2 +5V O Supply voltage

3 GND Ground

4 GND Ground

5 SLEEP 0 Inverter SLEEP mode, fixed value

6 BRITE 0 Brightness control, fixed value

7 SET1 0 Lamp current, fixed value

8 SET2 0 Lamp current, fixed value

1.2.2 CO2 connector (X2)

CO2 connector is for Welch Allyn’s CO2sensor.

Pin Signal I/O Description

1 Shutdown O, TTL Control of the isolation power supply

2 RXDCO2 I, TTL Serial receiving

3 TXDCO2 O, TTL Serial transmission

4 +5V O +5V Supply

5 GND - Ground

6 +12V O +12V Supply

7 WTP# na Water Trap Present

8 GND - Ground

1.2.3 JTAG connector (X3)

Pin Signal I/O Description

1 TDI I Test Data Input

2 TDO O Test Data Output

3 TMS I Test Mode Select

4 TCK I Test Clock Input

5 GND - Ground

6 Test RST I Test Reset

7 +5VD O +5V supply

8 NC - Not connected

Document No. M1051339

Datex-Ohmeda S-5 Light Technical reference manual (2005)

Specifications and Main Features

Frequently Asked Questions

User Manual

Technical Reference Manual

Master table of contents

PART I, General Service Guide

PART II, Product Service Guide

Table of contents

PART 1 - GENERAL SERVICE GUIDE

TABLE OF FIGURES

Introduction

Functional check

Adjustments and calibrations

General troubleshooting

APPENDICES

APPENDIX C, EMC Guidance

FUNCTIONAL CHECK FORM

SERVICE CHECK FORM

EMC GUIDANCE

Table of contents

1. PLANNED MAINTENANCE

1.1 Introduction

1.2 Recommended tools and accessories

1.3 Recommended parts

2. INSTRUCTIONS

2.1 Visual inspection

2.2 General functional inspection

2.3 Screen setup

2.4 Hemodynamic tests

ECG measurement tests

Temperature measurement tests

Non invasive blood pressure measurement tests

SpO2 measurement tests

Invasive blood pressure measurement tests

Mainstream CO2 test

2.5 Trend test

2.6 Recorder unit test

2.7 Network test

2.8 DataCard test

2.9 Service Log

2.10 Electric safety check

APPENDIX A

PLANNED MAINTENANCE FORM

Table of contents

TABLE OF FIGURES

Functional description