EDAN M3 User manual

EDAN INSTRUMENTS, INC.
Manual Ver: V1.0
Release Date: Aug. 2008
Part Number: MS1R-109399-V1.0

I
Copyright
EDAN INSTRUMENTS INC. 2008
Statement
EDAN INSTRUMENTS INC. (hereinafter called EDAN) owns all rights to this unpublished
work and intends to maintain this work as confidential. EDAN mayalsoseek to maintain this
work as an unpublishedcopyright. This publication is to be used solelyforthe purposes of
reference, operation, maintenance, or repair of our equipment. No part of this work can be
disseminated for other purposes.
Intheevent of inadvertent or deliberate publication, EDAN intends to enforce its rights to this
work under copyright laws as apublished work. Those havingaccess to this work maynot copy,
use, or disclose the information in this work unless expresslyauthorized byour companyto do
so.
All information contained in this publication is believed to becorrect. EDAN shall not be liable
for errors contained herein nor for incidental or consequential damages in connection with the
furnishing,performance,or use of thismaterial. This publication mayrefer to information and
protected bycopyrights or patents and does notconveyanylicense under the patent rights of
EDAN, nor the rights of others.EDAN doesnot assume anyliabilityarising out of any
infringements of patents or other rights of third parties.
Content of this manual is subject to changes without prior notice.
Responsibility on the Manufacturer Party
EDAN is responsible for safety,reliabilityandperformance of this equipment onlyin the
condition that:
•All installation, expansion, change, modification and repair of this equipment are conducted by
EDAN qualified personnel; and,
•Applied electrical appliance is in compliance with relevant National Standards; and,
•The monitor is operated under strict observance of this manual.
NOTE
This equipment is not intended for familyusage.
WARNING
This monitor is not a device for treatment purpose.

II
Using This Label Guide
This guide is designed togive keyconcepts on safetyprecautions.
WARNING
A WARNING label advises against certain actions or situations that could result in
personal injuryor death.
CAUTION
A CAUTION label advises against actions or situations that could damage equipment,
produce inaccurate data, or invalidate a procedure.
NOTE: A NOTE provides useful information regardinga function or procedure.
Revision History
This service manual shall be revised whenever changes in regulatoryrequirements dictate.
Date ECO Version Revision history
5th Aug. 2008 V1.0 1
st edition

III
Table of Contents
1 Introduction.................................................................................................................1
1.1 General Information................................................................................................1
1.2 Screen Display.......................................................................................................2
1.3 Button Functions.....................................................................................................5
1.4 Interfaces................................................................................................................7
1.5 Built-in Rechargeable Battery.................................................................................9
2 Principle....................................................................................................................12
2.1 General Parts....................................................................................................12
2.1.1 Parameter Measuring Part.............................................................................12
2.1.2 Main Control Part...........................................................................................13
2.1.3 Interface Part.................................................................................................13
2.1.4 Power SupplyPart.........................................................................................13
2.1.5 Other AuxiliaryParts......................................................................................13
2.2 Hardware Functional Principle..........................................................................13
2.2.1 Power Module................................................................................................14
2.2.2 Main Control Board........................................................................................16
2.2.3 Keyboard........................................................................................................17
2.2.4 Recorder Module...........................................................................................18
2.3 Software Function Principle...............................................................................19
2.3.1 System Software............................................................................................19
2.3.2 System Software Function.............................................................................20
2.4 System Parameters...........................................................................................21
2.4.1 General..........................................................................................................21
2.4.2 NIBP...............................................................................................................22
2.4.3 SpO2...............................................................................................................22
3 Installation of Monitor..............................................................................................24
3.1 Open the Package and Check..............................................................................24
3.2 Connect the Power Cables...................................................................................24
3.3 Power on the Monitor...........................................................................................24
3.4 Connect Sensor to Patient....................................................................................25
3.5 Check the Recorder..............................................................................................25
3.6 Other Notes..........................................................................................................25

IV
4 Test and Calculation.................................................................................................26
4.1 Check the Monitor.............................................................................................26
4.2 NIBP Calibration................................................................................................26
5 DisassemblyGraph..................................................................................................28
5.1 DisassemblyGraph...........................................................................................28
5.2 Front Shuck Assembly......................................................................................28
5.3 Rear Shuck Assembly.......................................................................................30
5.4 Bracket Assembly.............................................................................................30
6 Troubleshooting........................................................................................................32
6.1 Device Failures.................................................................................................32
6.2 DisplayFailures.................................................................................................33
6.3 Operation, Recording, Network Linking Failures...............................................33
6.4 Power Board Failures........................................................................................34
6.5 Parameter Failures............................................................................................34
7 Maintenance and Cleaning......................................................................................36
7.1 General Cleaning..............................................................................................36
7.1.1 Cuff Maintenance and Cleaning.....................................................................37
7.1.2 SpO2Sensor Maintenance and Cleaning.......................................................38
7.2 Maintenance Menu............................................................................................39
8Accessories and Ordering Information...................................................................41
9 Warrantyand Service...............................................................................................43
AppendixⅠProduct Specification..............................................................................46
A1.1 Classification......................................................................................................46
A1.2 Specifications.....................................................................................................46
A1.2.1 Size and Weight...........................................................................................46
A1.2.2 Environment.................................................................................................46
A1.2.3 Display.........................................................................................................46
A1.2.4 Battery..........................................................................................................47
A1.2.5 Recorder......................................................................................................47
A1.2.6 Review.........................................................................................................47
A1.2.7 NIBP.............................................................................................................47
A1.2.8 SpO2.............................................................................................................48

M3 Vital Signs Monitor Service Manual
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1 Introduction
General Information
Screen Display
Button Functions
Interfaces
Built-in Chargeable Battery
1.1 General Information
M3 Vital Signs Monitor (hereinafter called monitor) monitors parameters such as SpO2(Areterial
oxygen saturation for pulse oximetry)and NIBP(Non-invasive blood pressure), and is adaptable
to adult, pediatric, and neonatal in ahospital environment and duringpatient transport both inside
and outside hospitals. The user can select different parameters configuration accordingto
different requirements in clinic, hospital or operatingroom.
The monitor centralizes the function of parameter measurement modules, display,record and
output to compose acompact, portable device. Its built-in replaceable batteryprovides
convenience forpatientmovement. On theLCDdisplayscreen, SpO2waveform andall the
monitoringparameters can be displayed clearly.
M3 monitor is auser-friendlydevice with operations conducted byafew buttons on the front
panel. Refer to Button Functions for details.
Figure1-1 M3 Vital Signs Monitor

M3 Vital Signs Monitor Service Manual
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M3 Vital Signs Monitor can monitor:
NIBP: Systolic Pressure (SYS);
Diastolic Pressure (DIA);
Mean Pressure (MAP);
SpO2:Arterial oxygen saturation (SpO2);
Pulse Rate (PR);
SpO2PLETH (Plethysmogram)
The M3 monitor providesextensive functions asvisual and audible alarm, recorder and storage
for trenddata,SpO2/NIBPmeasurements review,net connection, nurse call, alarm events andso
on. The recorder, wireless net connection and mobile storage are optional functions for monitor.
1.2 Screen Display
M3 Monitor is equippedwith LCD.The patientparameters, waveforms,alarm messages, bed
number, time, monitor status and other data can be reflected from the screen.
The screen is divided into three areas:
1 Parameter area
2Waveform / Trend table / Alarm list area ②
3Information area ③④
Figure1-2 Main displaywith waveform
②
③
④

M3 Vital Signs Monitor Service Manual
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Figure1-3 Main displaywith data
The icons on the interface and their meanings are as follows:
Batterystatus indicator
Connected to mains power supply
Network connection indicator
Network connection off
Medium/Low alarm icon
High alarm icon
Audio system off icon
Audio alarm paused icon
Parameter alarm off
②

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Patient type: ADU
Patient type: PED
Patient type: NEO
NIBPmanual mode
NIBPinterval mode
NIBPcontinual mode
Heart beat
IDCurrent patient ID
18 18 55 Current time
Parameter Area ()
Parameter area is on the right of Waveform area, and parameters are displayed:
SpO2:
SpO2(Unit: %)
PR (Pulse Rate, unit: BPM)
NIBP:
SYS, MAP, DIA(Unit: mmHgor kPa)
Waveform/Trend Tab/Alarm List Area ()②
Itcan displaySpO2waveform, Trend tab or Alarm list. You can select it in the SELECTION of
SYSTEM MENU.
Information Area (③④)
The Information Area is at the bottom and right part of the screen, displayingoperatingstate of
the monitor and status of the patient.
The information area contains followingdata:
Patient type and ID;
NIBPmeasuringmode;

M3 Vital Signs Monitor Service Manual
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Signs indicatingthe net connection status;
Signs indicatingthe Batteryor mains power supplystatus;
Current time;
Signs indicatingthe sensor off or alarm off.
Alarm Indicator and Alarm Status
Under normal status, the alarm indicator does not light.
When alarming,the alarm indicator lights or flashes. Thecolor of light represents the alarm
level. Refer to Chapter Alarm for details.
Refer to relative content of parameter for Alarm information and prompt in User manual.
Charge Indicator andCharge Status
Toindicate the status of charging:when the batteryis charging, the light turns to yellow; after the
charge is finished, the light will be off.
1.3 Button Functions
Figure1-4 Buttons
⑦
⑥
③④
⑤
②
①
⑧
⑨

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All the operations to the monitor can be finished byseveral buttons.
①ON/OFF
When the monitor is off, press this button to turn on it.
When the monitor is on,press this button and hold for 3s
to turn offthe monitor; Or press this button for less than
1s, the monitor will enter Sleep mode.
②SILENCE
Press this button for lessthan 2s topause audio alarm for
2min, then the icon displays. When repress it or the
pause time is over,the audio alarm can resume to the
normal monitoringstatus.
Press this button for more than 2s can turn offthe audio
system, includingaudio alarm, keyvolume and pulse tone.
The icon displaysin Information area. Press the
button again can resume the audio system.
③NIBPSTART/STOP
Press to fill air into cuffand start blood measuring.During
the measuringprocess, press the button to stop measuring.
④TREND/WAVEFORM
Press this button to change the displayscreen fordata list.
⑤RECORD
Press to print out current displayed trend list or alarm list.
⑥MENU
Press to call up the SYSTEM MENU. Refer to Chapter
SYSTEM MENU for details in User manual.
⑦
UP
OK
DOWN
Select the itemsin menu, or decrease or increase the
items. Confirm the selection byOK button.
Above the ON/OFF button are the charge indicator ⑧and power indicator ⑨.

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1.4 Interfaces
For theconvenience ofoperator,interfaces ofdifferent function are indifferent sitesof the
monitor.
Left Side of the Monitor
At the left side of the monitor, there is the recorder’s paper inlet cover ( ).
Figure1-5 Left Panel
Sensor port on the front panel
Connectors for cables and sensors are as shown inFigure 1-5.
1. SpO2sensor connector ②
2. NIBPcuffconnector ③
WARNING
Onlyconnect the device to EDAN supplied or recommended accessories.
Rear Panel
This symbol means “BE CAREFUL". Refer to the manual.
①
②
③
！

M3 Vital Signs Monitor Service Manual
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This symbol indicates that the instrument is IEC/EN60601-1 Type BF equipment.The unit
displayingthis symbol contains an F-Type isolated (floating) patient applied part providinga high
degree of protection against shock, and is suitable for use duringdefibrillation.
Figure1-6 Rear Panel ofM3
Sockets on the rear panel are shown in Figure1-6,
①Equipotential groundingterminal for connection with the hospital’s groundingsystem.
②Power supplysocket: AC100 ~ 240 V, 50/60 Hz.
③Network Interface (reserved): Standard RJ45 Socket, for connectingto MFM-CMS of EDAN.
Bottom panel
There are batterycompartment and fuse boxat the bottom panel.
①
②
③

M3 Vital Signs Monitor Service Manual
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Figure1-7 Bottom panel
1.5 Built-in Rechargeable Battery
The monitor is equipped with abuilt-inrechargeable lithium-ion battery(hereinafter called
battery). When switch on AC power supply,the batterywill be recharged automaticallyuntil full
electric energy.There is a sign “ ” or “ ” in the lower right corner of screen.
－when the monitor is workingwith AC mains power,and it has no batteryor the batteryhas
full electric quantity, it displays ;
－when the monitor is workingwith AC mains power,and the batteryisrecharging,it displays
;
－when the monitor isworkingwith battery,it displays . Ifthe batteryis empty,it
displays .
Ifthemonitor is off, youcan see rechargingstatus from the charger indicator.Batterystatus light
is yellow when recharging, off when full.
Battery
compartment
cover
Fuse
box

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For recharging, the batteryis 90% to 100% charged after 300min of recharging.
Replace Battery
Duringmonitoringstate or communication state, when the electric energyof batteryis low or
empty, the batterystate icon will displayand flash.
When the lifespan of batteryis over,or foul odor and leakagehas been detected, pleasecontact
with manufacturer or local distributor for replacement of battery.
WARNING
Do not take offthe batterywhen monitoring.
The unexpected power supplyoffcan not impact the monitor normal working, for it has
batteryfor standby.
WARNING
Stop using the battery if abnormal heat, odor,discoloration, deformation or abnormal
condition is detected during use, recharge, orstorage. Keep it awayfrom the monitor.
WARNING
Make sure the monitor is used in the appointed range ofvoltage, the effect ofpower
supplycan be not noticeable.
WARNING
Before using the rechargeable battery,be sure to read the usermanual and safety
precautions thoroughly.
WARNING
Do not place batteryin the monitor with the (+) and (-) in the wrong wayaround.
WARNING
Do not connect the positive(+) and negative(-) terminalswith metal objects, and do not
put the batterytogether with metal object, which can result in short circuit.
WARNING
Do not heat or throwbatteryinto a fire.
Do not use, leavebatteryclose to fire or other placeswhere temperature maybe above
60.℃
WARNING
Do not immerse, throw, and wet batteryin water/seawater.
WARNING
Do not destroythe battery:Do not piercebatterywith asharp object such asaneedle;
do not hit with ahammer,step on or throwor drop to cause strong shock; do not

M3 Vital Signs Monitor Service Manual
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disassemble or modifythe battery.
WARNING
Before transporting, the batteryshould be taken off from monitor.
WARNING
Please take out the batterybefore storing the monitor for more than 1 month.

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2 Principle
2.1 General Parts
The monitor has been designed to measure physiological parameters includingNIBPand SpO2.
There are five parts in monitor, see figure 2-1.
•Parameter measuringpart
•Main control part
•Interface part
•Power supplypart
•Other auxiliaryparts
Figure2-1 Monitor Structure
2.1.1Parameter Measuring Part
The monitor acquires the physiological signals of Non-invasive blood pressure (NIBP), Oxygen
saturation of the blood (SpO2). The Parameter measuringpart can transform physiological signals
to electrical signals, process and transfer the values, waveforms andalarm information to Main
control part, and then displaythem byInterface part.
Main
control
part
Interface part
Power
supply
part
Parameter
measuring part
Other auxiliaryparts

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2.1.2Main Control Part
Main control board consists of Core board and Interface board. Ithas CPU/memory,display
circuit, network circuit and I/O interface. Main control board of the integrated board is used to
drive man-machine interface, manageparameter measurement and provide other specific
functions to the user suchas configuration storage,waveform and data review, etc.
2.1.3Interface Part
The man-machine interfaces are LCD display,recorder, speaker, indicator,keysand encoder.
The LCD displayis the most primaryoutput interface, displayingreal-time or historydata and
waveforms, various patient information andalarm prompts on the screenfor the user’s
observation.
Recorder is an auxiliarydevice to the display,which could print out varioususer-selected data for
use and preservation.
Speaker gives heart beat tone and audio alarm.
Indicator provides additional information about power supply, batteryand alarm.
Keysand encoder are user-input interfacesof the monitor,user could input information and
instructions into the monitor byusingthem.
2.1.4Power SupplyPart
Power supplyis an important part of the system, consistingof power board, power switch board,
batteryand fan.
The main power board converts the AC mains supplyinto 5Vand 12VDC to energize other parts
of the system. Thepower switch board can supplyspecial power supplyto LCD display.The
batterycould maintain the formal function of the system for ashort period whenAC mains
supplyis disconnected. A small fan requiringDC input is used to realize superior ventilation.
2.1.5Other AuxiliaryParts
RJ45 on-line upgrade port is available on the monitor,which allows the service engineer to
upgrade the system software without necessarilyopeningthe enclosure ofthe monitor.This port
is NETfunction.
2.2 Hardware Functional Principle
The followingfigure shows the hardware structure of the whole monitor aswell as the connection
relationships between different parts. Theboard in the center of the figure is the core part of the
monitor,i.e., integrated board for main control andparameter measurement, which, thoughbeing
asingle board, could realize the measurements of all the parameters; accordinglyuniformA/D
conversion and digital processingsystem is used.

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Figure2-2 Structure and Part Relationship
NOTE:
The Nursecall board and the Network boardare optional configuration, theycan not be
installed at the same time. Ifyou want to usethe Nurse call function, you should install
the Nurse call board, otherwise you should install the Network board.
2.2.1Power Module
This module provides DC supplies to other board.
Schematic Diagram
Alarm
board
USB board
Power
control board
Keyboard
Network
board
Recorder
SpO2sensor
Air pump,
Valve, Cuff
Wireless
module
Speaker
Fan
Battery
SpO2module
NIBPmodule
2410
Main control
board
Power
module
Nurse call
RJ45
Port
LCD backlight
LCD data
Slave keyboard

M3 Vital Signs Monitor Service Manual
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Figure2-3 Schematic Diagram of Power Board
Principle Introduction
This module converts 220VAC mains power supplyor batterypower into 5V,12Vand -12VDC
supplies to power other boards. IfAC mains andbatterycoexist, the former take the priorityto
power the system and charge the latter at the same time.
AC/DC
Converts high-voltageAC supplyinto low-voltage DC supplyto power subsequent circuits and
charge the battery.
BatteryControl Circuit
IfAC supplyand batterycoexist, this circuit controls the output from AC/DC part to chargethe
battery.IfAC supplyis disconnected,this circuitcontrols the batterytopower the subsequent
circuits.
5V DC/DC
Convert the DC supplyfrom the previous circuit into stable 5VDC supplyto power other boards.
12V/-12V DC/DC
Convert the DC supplyfrom the previous circuit into stable 12V/-12VDC supplyto power other
boards.
Power Switch Circuit
Control the workingstatus of 5VDC/DC and12VDC/DC in order tocontrol ON/OFF action of
the monitor.
Power board
Power
control board
Fan
Battery