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7/25/2019 Choice 6000 Service Manual
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MMED6000DP/S6-CSN801
Service Manual
Copyright @ 2005 Choice Electronic Technology Co. Ltd.
Edition: MMED6000DP-CSN801
Issued date: Aug.2005
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COPYRIGHT
Beijing Choice Electronic Technology Co., Ltd.(hereinafter called Beijing Choice) owns all
right to this unpublished work and intends to maintain this work as confidential. Beijing Choice
may also seek to maintain this work as an unpublished copyright. This publication is to be
used solely for the purpose of reference, operation, maintenance, or repair of Choice
equipment. No part of this can be disseminated for other purposes.
In the event of inadvertent or deliberate publication, Beijing Choice intends to enforce its right
to this work under copyright laws as a published work. Those having access to this work may
not copy, use, or disclose the information in this work unless expressly authorized by Beijing
Choice to do so.
All information contained in this publication is believed to be correct. Choice shall not be liablefor errors contained herein nor for incidental or consequential damages in connection with the
furnishing, performance, or use of this material. This publication may refer to information and
protected by copyrights or patents and does not convey any license under the patent rights of
Beijing Choice, nor the rights of others. Beijing Choice does not assume any liability arising
out of any infringements of patents or other rights of third parties.
Content of the manual is subject to changes without prior notice.
PROPERTY OF BEIJING CHOICE ELECTRONIC TECHNOLOGY CO., LTD.
ALL RIGHTS RESERVED
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CONTENT
Chapter 1 Introduction
5
General 5
Description of abbreviation 5
Explanation of symbols 5
Special feature 6
Appearance of monitor 7
Specification 13
Chapter 2 Special operation in menu 17
Chapter 3 Monitor function and principle 19
Power supply unit 19
CSN801 board 19
Chapter 4 Component and structure 21
Component 21
Structure 21Chapter 5 Troubleshooting 30
Diagram of solutions to various troubles 30
Troubleshooting 40Error Message 43
Chapter 6 Calibration of monitor 44
Required testing tool 44
Power on the monitor 44
Front panel test 44
Audio system test 45
Test of automatic storage 45
Alarm test 45
ECG test 46
Respiration test 47
Temperature test 47
NIBP test 47
SPO2 test 49
Chapter 7 Adjustment procedure 50
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ECG adjustment50
NIBP adjustment50
SpO2 adjustment50
IBP Calibration52
ET-CO2 calibration54
Chapter 8 Disassembly procedure55
Monitor Disassembly55
Battery Removal55
Chapter 9 Cleaning and Disinfection 57
Maintenance check57
General cleaning57
Sterilization58
Precondition and cleaning59
TEMP sensor cleaning and disinfection59
SpO2 sensor cleaning and disinfection60
Chapter 10 Warranty61
Warranty and repair61
Exemption and restriction62
Customer guarantee62
Non-warranty and non-replacement policy 62
Customer special warranty period62
Repackaging62
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CHAPTER 1 INTRODUCTION
1.1 General
MMED6000DP is a Portable Patient Monitor that has abundant monitoring functions and is
used for the clinical monitoring of adult, pediatric and neonate. Besides, the user may select
the different parameter configuration according to different requirements.
MMED6000DP can be connected to the central working station to form a network monitoring
system.
MMED6000DP can monitor vital signals as ECG, RR, SpO2, PR, NIBP, TEMP, Dual-channel
IBP (optional), CO2 (optional). It integrates parameter measuring modules, display and
recorder in one device, featuring in compactness, lightweight and portability. Large true color
display provides clear view of 6 waveforms and full monitoring parameters.
1.2 Description of Abbreviation
HR: heart rate2-channel ECG waveform
SPO2: arterial oxygen saturationNIBP: non-invasive blood pressureIBP: invasive blood pressureS: systolic
M: mean blood pressureD: diastolicPR: pulse rateRR: respiration rateTEMP1: temperature channel 1TEMP2: temperature channel 2CO2: end-tidal CO2 concentration
1.3 Explanation of Symbols
Attention Refer to the relevant
the prompt.
Class II Equipment
Resistant defibrillator
BF type equipmentHeart Beat Detected
Power on/off
Rotated knobCounter-clockwiseand clockwise
Alarm on Alarm off
Sound on Silence
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System setup menu Trend menu
Equipotential grounding
terminal
AC
50/60 HZ
Fuse
This symbol indicates that the instrument is IEC 60601-1 Type CF equipment. The
unit displaying this symbol contains an F-type isolated (floating) patient applied part
providing a high degree of degree of protection against shock, and is suitable for
use during defibrillation.
This item is compliant with Medical Device Directive 93/42/EEC of 14 June
1993, a directive of the European Economic Community.
1.4 Special Features
l Portable, compact, AC power and internal rechargeable battery;
l Automatically and rapid charge, 80-90% power will be recharged within 3 hours;
l Resistant high-frequency electrotome design, reliable and special module is used in
operation room;
l Optional inner printer with 3 channels wave or external printer;
l Adjust volume more accurately by digital system;
l Menu design adopts Huffman decode, operating more effectively;
l Support Ethernet, wireless LAN and could connect with Central monitoring system.
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1.5 Appearance of Monitor
1.5.1. Screen display
u 4 channels
Fig.1-1
The display of MMED6000DP patient monitor is TFT LCD, which displays the patient
parameters, waveforms, historical data and monitor status.
The screen is divided into five areas: (1) monitor status, (2) waveforms, (3)the table of
historical data, (4) parameters (5) menu as well as (6) frame of menu status.
Fig. 1-2
(1)
(2)
(3)
(4)
(5)(6)
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l Monitoring status frame
Bed No.: indicates the bed number of the patient being monitored when the patient
monitor is connected with the workstation.
DEMO: indicates the device is in DEMO monitoring mode now. In clinical application,
this function is not recommended because the DEMO will mislead the hospital
workers to treat the waveform and parameter as actual data of the patient, which may
result in delay of treatment or mistreatment.
Start time: indicates the time powered on the monitor, it shows in 16:25.
Current time: indicates the current date and time, it shows in 05/16/2004, 10:10
l Waveforms displaying area
The waveform area can maximally display 6 waveforms. The colour of waveforms
matches with the parameters on the right of the screen. For the maximum
configuration, the waveforms provided by the system for selection are (from up to
bottom):
2-lead ECG waveforms
SpO2 waveform
RESP waveform
There are two means to gain RESP waveform, trans-thoracic impedance and Et-CO2
(optional).
If operator selects Et-CO2 (side stream) to monitor the patients respiration, the CO2
waveform will instead of the RESP waveform acquired by Trans-thoracic impedance.
2 IBP waveforms(option)
If operator selects IBP operation, the table of historical data will be instead of 2 IBP
waveforms.
l Numeric displaying area
The parameter area lies to the right side of the graphic area, which includes:
ECG: heart rate (unit: beats/minute)
NIBP: from left to right, there are Systolic pressure, Mean pressure and Diastolic
pressure (unit: mmHg or kPa)
IBP: the BP of channel 1 and 2. From left to right, there are Systolic pressure, Mean
pressure and Diastolic pressure (unit: mmHg or kPa)
SpO2: SpO2(unit: %) pulse rate (unit: beats/minute)
RESP: respiration rate (unit: breaths/minute)
TEMP: temperature of channel 1 and 2 (unit: or )
Et CO2: unit: mmHg or kPa
l Menu
The menu always occupies the fixed position on the bottom of the screen, user can
set the system and perform operation.
l Frame of menu status
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Silence on/off: showing the status of silence on or off
Alarm on/off: shows the status of alarm on or off ,
Trend: the function is for operator observing the patients latest 72 hours change,
including historical data table, HR, NIBP, SpO2, ST segment.
System setup: you can configure various aspects of the monitor, including system
time, simulation, print setup, color, display wave, language, color, etc..
Menu bar: it shows the different menus of every operation.
Other modes:
IBP EXT:
ECG EXT:
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1.5.2 Function buttons
Fig.1-3
1 Alarm
ALARM button, pressing the button will prohibit all the technically audio alarm and
physically audio alarm for 3 minutes. The audio alarm function will be restored
automatically after 3 minutes or be activated when new alarm occurs.As pressing the
button, the icon in menu status shows which indicates all the audio alarms
have been shut off.
NOTE
When mark appears, the system can not give out the audio alarm
prompt. Therefore, the operator should use this function carefully.
2
Silence
SILENCE button, when pressing the button, this mark appears in the menu
status, indicating that all kinds of sound including the audio alarm and heart beep have
been manually muted until the button has been pressed again, the system willimmediately restore the normal status, and the icon shows as
NOTE
When pressing SILENCE, the system cannot give out the audio alarm and
heart beep; therefore, the operator should be considerate in using the
function.
3 Freeze
FREEZE button, pressing the button can freeze the waveform of ECG. The screen
displays two traces of ECG waveform. When one trace is active, pressing the FREEZE
(1)
(2)
(3)
(4)
(8)
(5)
(6)
(7)
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button will freeze another trace. Pressing FREEZE button again will restore the normal
monitor status.
4 Start/Cancel
START/CANCEL BP measuring button, pressing the button will inflate the cuff to start a
new NIBP measurement. When measuring, press it to cancel the measurement and
deflate the cuff, including the CYCLE and STAT (NOT STOP) measuring mode.
5 Print
PRINT button, pressing this button will motivate the recorder or desktop printer to output
the result if the monitor is equipped with them.
(6) Menu
Main MENU button, pressing the button will exit the submenu and refresh the screen.
7
Rotary Knob The operator uses the rotary knob to select the menu
item and modify the setup. It can be rotated clockwise
or counter-clockwise and pressed like other buttons.
The operator uses the knob to realize the operations.
The method of using the knob to execute the operation:
Rotary knob is just like the cursor of computer. When operator rotates the knob on
the icon where the operation is wanted, the icon will be automatic highlight. Then
pressing the knob, operator will open the setup menu of the correspondingparameter so as to set up the menu.
(8) Power Supply Indicator
Indicating the power supplying state of the monitor
Orange: 220Vac main power supplying
Orange and flash: 220Vac main power supplying and battery charging
Green and flash: internal battery power supplying and 50% power has been
consumed.
1.5.3. Side Panel
Fig. 1-4
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Fig.1-5
(1) ECG socket connect ECG 5-lead wire with 6 PIN connector
(2) NIBP socket
connect NIBP cuff with extension tube
(3)(4) IBP (IBP1, IBP2) socket: Single, Dual channel (optional)
(5)(6) Temperature socket: connecting the TEMP probe
(7)SPO2socket connect the SpO2 sensor with extension cable
(8) Et CO2 socket
connect the nasal cannula with connector.
Fig.1-6 Fig.1-7
1.5.4 Recorder
Fig. 1-8
(1)
(2)
(4)
(3)
(5) (6)
(7)
(8)
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A thermal dot matrices recorder with standard 50mm (+1/-1) wide printout paper is used for
MMED6000DP portable patient monitor.
NOTE
The thermal array recorder should be installed by the adequate technician.
1.5.5 Rear panel
Fig.1-9
(1) Power switch
(2) NET: Internet access point: connecting with the central monitoring system through the
standard RJ-45.
(3) CRT: exteriorly connectingscreen and standard VGA.
(4) Printer: exteriorly connecting printer, which type is designated by the manufacturer.
(5)AC Power supply: 100-230 (VAC), 50/60(Hz); Fuse: standard T 1.6A
(6) Equivalent electric ground access for connecting with the hospitals grounding system.
1.6 Specification
Environment
The operation environment should comply with the following conditions:Operating Temperature: 5 to 45
Relative Humidity: 0 to 80%, non-condensingHeight of sea level: -500m ~ 4600mThe transport and storage environment should comply with the following conditions:Storage Temperature: -20
to 70
Relative Humidity: 0 to 93%, non-condensingHeight of sea level: -500 m~ 13100m
(1)
(2)
(3)
(4)
(5)
(6)
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Display
Type: 640X480 pixel color TFTScreen Size: 10.4 inch diagonal
Disp layed Parameters
Time: Battery-backed quartz crystal clockAlarms: High and low limits selectable on patient parametersECG: ECG Waveform Scale, displayed leadHeart Rate: Derived from ECG OR Spo2NIBP: Pressure (systolic, mean and diastolic)Pulse Oximeter: Pulse Rate, Pulse waveform, and percent saturation.Respiration Rate: Respiration rate derived from ECG.Trends: Heart rate, respiration rate, NIBP (systolic, mean, diastolic),
Temperatures and SpO2Temperatures: Two channelsTrace Freeze Traces A or B
ECG
Protected against defibrillator and electro surgery potentialsStandard Lead I
II
III
aVL
aVR
aVF
V1
V2
V3
V4
V5
V6
Display Gain Scales 5mm/mV 7mm/mV 10mm/mV 15mm/mV 20mm/mV
25mm/mVSweep Speed 12mm/s 25mm/s 50mm/s
Input Resistance > 5M Ohm (at 10 Hz, not including patient cable)Frequency Response 0.05Hz-100Hz (3dB)Common ModeRejection Ratio
>60dB
Electrode Offset
Potential
Maximum 0.3V
Baseline Recovery
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Pulse Rate
NIBP
Technique Oscillometric method (with inflatable cuff)Determines systolic, diastolic and mean arterial pressures.
Patient Types Adult, Pediatric and NeonateCuff Inflation Time 3-15 seconds depending on cuff size.Cuff Inflation Pressure Initially 180mmHg for Adult/Pediatric (100 or 70 mmHg for
Neonate). Subsequent inflation pressures determined by lastmeasured systolic pressure.
Measurement Modes Manual: Immediate upon operator commandAUTO: Determinations automatically made with selectable
intervalsSTAT: Determinations continues in 5 minutes
MeasurementInterval Time
1-240min
Step:1min(1-10min) 5min(10-30min) 10min(30-90min)
30min(90-240min)
Measurement Range Adult
Systolic 30-255mmHg
Diastolic 15-220mmHg
Mean Arterial 20-235mmHg
Infant
Systolic 25-220mmHg
Diastolic 10-150mmHg
Mean Arterial 15-160mmHgPressure Resolution 1mmHgAccuracy Cuff Pressure Range: 0 to 275mmHg
Pressure Span Accuracy: 3mmHg
Mean difference: 5mmHg
Standard deviation: 8mmHgDetermination Time Typically 25seconds.Varies with patients pulse rate, pulse
pressure and amount of artifact present.Overpressure ValveAdult/Neonate
Automatically releases cuff pressure if inflation pressureexceeds 280mmHg/150mmHg
Overtime ProtectionAdult/Neonate
Stop determinates if the measurement time exceeds 120s/90s.
Alarm delay Pressure high and low limits alarm delay
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TEMP
CO2 (Option al)
Measurement Range 0-99mmHg
Respiration rate 1-99 breaths per minute
Accuracy +/- 3 mmHg 0 - 40 mmHg+/- 8% of reading 41 - 76 mmHg+/- 10% of reading 77 - 99 mmHg
Flow rate range User-selectable, variable from 90 to 200 ml/min (defaultsto 175 ml/min)
IBP
Power Requirements
Technique Resistance
Channel 2 (T1 and T2)
Scales F. Or
Probes Resistive; recta and skin (reusable and disposable)YSI 400 Series types
Range 0-50
Revolution 0.1
Accuracy 0.1
Alarm delay Body temperature high and low limits alarm delay
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CHAPTER 2 SPECIAL OPERATION IN MENU
Some operations of monitor aim at the dealer but not the doctor, such as Language setup or
Hz selection, the dealer should note the following points before monitor getting end user.
NOTE: you must keep the correct setup according customers condition before using
the equipment.
In monitoring status, rotate the knob to highlight the MENU icon, and then press the
knob, the menu bar of system setup appears on the bottom of screen.
Fig.2-1Rotate the knob and select EXTEND item to access the sub-menu shown as below Fig.1-2
Fig.2-2
The functions of the items in the submenu please refer to section 6.5 of chapter 6 system
menu in Operators manual.
Select SYS-ACC item to access the sub-menu shown as Fig.2-3,
Fig.2-3
Then Input 2 in each of the items, press PW-ENTER to enter another sub-menu shown as
Fig.2-5:
Fig.2-4
Fig.2-5
USE TIME ,RUN TIME, relate with the password of opening equipment. For instance, set
USE TIME to 10, as powered on equipment at 11thtime, the monitor will require you to input
password, just pressing function button START twice, PRINT once you are able to enter
the normal monitoring status.
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Rotate the knob to select USEDATE menu to enter in the sub-menu shown as Fig.2-6
Fig.2-6Set the USEYEAR,USEMON,USEDAY for expiring date,CLR LOG means clear the record.
Rotate the knob to select SETUP menu to enter in the sub-menu shown as Fig.2-7
Fig.2-7
Language SetupThe system offers two languages: English and Chinese. Technician is able to set the required
menu as per customers demand.
Screen Selection
If the screen of monitor is 12.1 inch, you should select 800*600 for the item, otherwise
please select 640*480 for 10.4 inch.
SPO2 CFG
There are two options offering to you: 201&801 , if your monitor use CSN801 module to
supply SPO2,please select 801 option, if your monitor use BCI sop2 module to supply
SPO2 ,please select 201 option.
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CHAPTER 3 MONITOR FUNCTION and PRINCIPLE
3.1 Power supply unit
Power supply unit consist of AC-DC adapter, battery and Power board. The AC-DC
adapter converts 220VAC into 15VDC, and the Power board provides 5VDC to mainboard
and CSN801 board, 12VDC to TFT displayer and fan, power Supply Indication signal to
LED, charge battery port to battery, and speaker signal to speaker.
3.2 CSN801 board
3.2.1 Power
Board input voltage is 5-6v, through the DC-DC, the voltage is changed into 9v, though
manostat voltage is changed into 5v and +3.3v.
3.2.2 CPU
The board includes ECG part, SpO2 part, respiration part, temperature part, NIBP part, and
there are 3 CPU in the board altogether. ATEMEGA128L (clock 8MHz) is used as major
CPU. 128K Bytes of In-System programmable Flash, it can endure 1,000 Write/Erase
Cycles.4K Bytes EEPROM, and endure 100,000 Write/Erase Cycles. It is responsible for
the whole control of the board. Using the timer interrupt, CPU is detecting the R wave and
ST segment from ECG waveform input by ADC, calculating heart rate, the respiration rate,
and receiving the data from NIBP part, temperature part and SpO2 part, and transferring
the data to the host computer.
Z80 is another CPU, and responsible for NIBP measurement .The third CPU is 8051F007;
it is responsible for SpO2 measuring.
3.2.3 Serial communication
There are two serial RS232 I/O ports, one for transferring data to the host computer, and
another is for receiving the NIBP data from the NIBP part.
3.2.4 ECG module
3.2.4.1 Input device
Signal through the ECG lead wires is inputted into three multiplexer. One multiplexer can
selects the I, II, III, avR, avL, avF, V1, V2, V3, V4, V5, V6 lead and CAL(1mV scale voltage),
the second multiplexer can select filter mode including monitor mode, diagnosis mode,
operation mode, the software filter mode, and the third select feedback and driver. After
through the low pass filter and high pass filter, the signal made 1000 times as large by the
amplifier, and then output to the A/D Conversion of CPU.
3.2.4.2 Leadoff detector
There are two ways to detect the leadoff. One is from the input circuits, and the other is
from the feedback circuits. When one of two conditions occurs, the leadoff is detected.3.2.4.3 Filter
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Hardware filter consists of the low pass filter and the high pass filter. The bandwidths are
different according the various filter modes. In Diagnosis mode it is 0.05-100Hz, in Monitor
mode is 0.5-75Hz, in Operation mode is 1-25Hz.
After calculating and processing from the CPU, the ECG data are transferred to the host
board.
3.2.5 NIBP
Blood pressure measurement module can be used for monitoring the blood pressure from
neonates to adults. Measurement adopts the oscillimetric method, CPU controls the pump,
valve to inflate and deflate the cuff, and the sensor transforms the pressure signals into the
electrical signals. After that, the signals are amplified by the AD623, and sampled by
1293AD. At the same time, 1293A/D converter sampled the pluses wave. Based on the
pluses wave, the systolic, diastolic and mean pressures are confirmed. According to the
difference of Neonate mode and Adults mode, overpressure protection circuit resets the
pressure value of blood pressure module to ensure the patients safety.
3.2.6 SpO2
Pulse oximetry works by applying a sensor to a pulsating arteriolar vascular bed. The
sensor contains a dual light source and photodetector. Bone, tissue, pigmentation, and
venous vessels normally absorb a constant amount of light over time. The arteriolar bed
normally pulsates and absorbs variable amounts of light during systole and diastole, as
blood volume increases and decreases. The ratio of light absorbed at systole and diastole
is translated into an oxygen saturation measurement. This measurement is referred to
SpO2. Based on this principle, the CPU (C8051F007) controls the MOS IRF 7303,
IRF7304 to light on the red and infrared. After the signals are received, filtered, andamplified, they are transferred to inner A/D conversion of C8051F007 and calculated. So
Spo2 and pluses rate values are obtained.
3.2.7 TEMP
The resistances is sampled by ADS1100, and transferred into the CPU, through matching
the resistance values, the temperature values are calculated.
3.2.8 RESP
Respiration wave is inputted by ECG lead. Through amplifying, filtering, the signals are
sampled by ADS1100. The digital signals are transferred to CPU by IIC bus. CPU calculatesrespiration rate, transfers the respiration wave value and respiration rate to the host computer,
the host computer reappearances the respiration wave.
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CHAPTER 4 COMPONENT and STRUCTURE
4.1 Component
4.1.1 Main components of monitor
Standard:
No. Production Description Standard Quantity1 Main board 1 piece2 SSD (solid state disk) 1 piece3 CSN801 board 1 piece4 Power board 1 piece5 Power inverter 1 piece6 Build-in power adapter 1 piece7 Build-in battery 1 piece8 040 program chip 2 piece9 TFT screen 1 piece
10 Deflation valve 2 piece12 Inflation pump 1 piece
13 Keyboard 1 piece 14 Fan 1 piece
Option:
No. Production Description Standard Quantity1 IBP module 1 piece2 Et-CO2 module (side-stream) 1 piece3 Thermal array recorder 1 piece
4.1.2 Standard accessaries
No. Production Description Standard Quantity
1 MMED6000DP(S6) Portable patient monitor 1 set
2 Choice reusable adult SpO2 sensor with extension cable 1 piece
3 Choice adult NIBP cuff with connector(25~35cm) 1 piece
4 Choice NIBP extension hose with connector (1.5m) 1 piece
5 Choice ECG cable with 5 lead wire and 6PIN connector( AHA) 1 piece
6 Choice TEMP skin probe 1 piece
7 Choice ECG electrodes (10 pieces/ pack) 1 pack
8 Triphase power wire 1 piece
9 Ground wire 1 piece
10 Build-in battery 1 piece
11 Wired net card 1 piece
4.2 Structure
4.2.1 Front panel
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Fig.4-1 Front panel
1. Power Supply Indicator(LED)
2. TFT display screen
3. Rotary Knob (Optical encoder)
4. Keyboard
5. Inverter
1
2
3
4
5
Fig. 4-2 Panel structure
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Fig.4-3 Circuit diagram of front panel
Fig.4-4 Circuit diagram of keyboard
4.2.3 Side panel
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Fig.4-5 Side panel
Fig.4-6 Side panel structure
4.2.4 inside parts
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Fig.4-7 Inside view
1. Pump and valve fix board
2. Power board
3. Side Panel board
4. AC-DC adapter
Output: 15V, 3A
5. Battery:
Sealed lead acid battery, 12V, 7Ah
6. Recorder
7. Mainboard
Fig. 4-8 Connection of inside board
1
2
3
456
7
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Fig.4-9 Profile
1. CSN801 board
2. Pump and valve fix board
3. Power board4. Mainboard
5. SSD
Fig. 4-10 Structure of profile
4.2.5 Pump & Valve fix board connection
12345
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Fig.4-11
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4.2.6 FLOW-CHART DIAGRAMS
(1) Signal Flow
General Block Diagram
PUMP
VALVE
DATA Main board
Indication
LED
DATA
Rotary Knob Keyboard
DOC
Inverter
ETCO2 module
IBP Module
COM1
COM4
COM3
Recorder
PRN
CSN801 board
ECG, NIBP, SpO2,
Respiration,
Temperature
TFT
Displayer
DATA
TXD
RXD
TXD
RXD
TXD
RXD
SSD
P2
Pc104
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(2) Power Flow
DC 5V DC 5V
AC 220V DC 15V Power
Board DC 5V
DC 5V DC 12V
DC 12V
LED
&Volume
Signal
LED
DC 12V
AC/DC
Power Supply
CSN801 BOARD
Main board
Key
Board
Inverter
Fan
Battery
charge
circuit
Battery
SSD
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CHAPTER 5 TROUBLESHOOTING
5.1 Diagram of solutions to various troubles
A.
NO DISPLAY WITH AC MAIN POWER ON
Is fuse blown?
Replace fuse
Is fuse blown again?
Change
AC/DC power supply
Is Power SupplyIndicator (LED)lighted?
Are there anyloose connectors?
Reconnect the connectors
Is TFT screenbacklightlighted?
YES
YES
YES
NO
YES YES
Replace the
inverter.
NO
A2
NO
NO
NO
A1
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Does AC/DCpower supplyoutput 15V?
A1
Change
the power board
YES
NOChange
AC/DC POWER SUPPLY
A2
Can you hear the voiceof mainboard power-onself-checking?
YES
Change the TFT
displayer
NOChange
the power board
Is mainboardsupply voltageOK?
YES
Change the
mainboard
NO
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B.
NO BLOOD PRESSURE READING
Is connector
connectedproperly?
Does cuff inflate? Does PUMP work?
YES
NO
YES
B1
Reconnect cuff/hose
connectors.
NO
YES
NO
Is there air leak?
YES
B2
B3
NOChange the CSN801
board
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B1
B2
Are CUFF andAIR HOSE OK?
Is pressure inflated topre-set valve?
Is deflation speedOK?
Change the CSN801
oard
Is there air leak?
YES
NO
YES
NO
YES
NO
NO
Change the CSN801
oard
Is 5V supplied to
the valves?
Change CUFF and AIR
HOSE
YES
YES
Change CUFF and
AIR HOSE
Change the CSN801
oard
NO
B2
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B3
Turn power OFF and
ON again.
Does PUMP work?NO
Is 5V supplied tothe pump?
END
YES
Change the pump
NOChange the CSN801
board
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C.
Are ECG cable andlead wires OK?
NO
YES
Are electrodesplaced OK?
YES
Change CSN801 board
Change ECG cable and
Lead wire
NO
NO ECG MEASUREMENT
Is there ECGERROR alarm?
NO
YES
Is 5V suppliedvoltage is OK?
YES
Change
CSN801 board
NO Change
Power board
Replace the electrodes
refer to operation manual
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D.
NO
YES
Replace PROBE
NO TEMPERATURE READING
Is temperaturePROBE OK?
NO
YES
Is connection OK?
YES
Change
CSN801 board
NO
Reconnect connector
Is supply voltageOK?
Check power source
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E.
NO
YES
Replace PROBE
NO RESPIRATION READING
Are ECG cable andlead wires OK?
NO
YES
Are electrodes be
placed OK?
YES
Change
CSN801 board
NO
Replace electrodes
Is respiration typesame as theinternal setup?
Select the respiration
type correctly
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F.
NO
YES
Replace SPO2 sensor
NO SPO2 READING
Is SPO2 sensorOK?
NO
YES
Is connection OK?
YES
Change
CSN801 board
NO
Reconnect connector
Is supply voltageOK?
Change power source
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5.2 Troubleshooting
5.2.1 The main trouble of ECG/HR
Failure Possible cause Solution
Display shows ECG
ERROR when you turn onthe equipment
CSN801 board has
problem.
Replace the CSN801 board
No ECG waveform Poor connection of ECG
electrode films
RL electrode issuspended
CSN801 board isdamaged.
The patients skin is toodry.
Use new electrode toensure good contact.
Connect RL electrode.
Replace it.
Note the precondition ofskin.
ECG waveform is abnormal
or has interference.
Electrodes are connected
incorrectly. There is suspending
electrode.
AC power has nogrounding wire.
CSN801 board isdamaged.
Correctly connect
electrode. Remove electrode that
are not used.
Use 3-wire power
Replace it.
Only one or some leadscould display waves, someleads display straight lines.
Some electrodes arenot contacted well.
The lead wires aredamaged.
The CSN801 board has
problem.
Connect the lead with ECGsimulator, if the signal isnormal, the trouble lies inthe electrodes or leads(identify which electrode
should be changed) if thesignal is abnormal still,change the CSN801 board.
ECG waveform displaysdisorderly
Patient is movingconstantly.
Position of electrode
The mode of monitor
Grounded receptacle
Keep patient quiet.
The electrodes shouldnot be too close.
Select the right mode ofmonitor
Connected withgrounded receptacle
HR data fluctuate
remarkably
Patient is moving
constantly.
Keep patient quiet.
ECG base line is notsmooth
Power supply is inferior Do not use the same powerpanel with high powerequipment.
5.2.2 The main trouble with RESP
Failure Possible cause Solution
No RESP waveform orRESP waveform isabnormal.
Electrodes areconnected incorrectly.
Patient is movingconstantly.
CSN801 board isdamaged.
Use RL-LL electrode,connect to the correctposition.
Keep patient quiet
Replace it.
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The data changeremarkably and havedeviation from the real data.
The dryness of skin
Inferior quality ofelectrode
The position ofelectrodes
Note the precondition ofskin
Replace the newelectrodes.
The electrodes shouldnot be too close.
No RESP wave The mode of RESP iswrong.
Select Impedance type inRESP mode.
5.2.3 The main trouble with TEMP
Failure Possible cause SolutionTEMP value is incorrect. Measuring sensor is poorly
connected.Connect TEMP sensorstably.
The measuring data is low.
The measuring time isshort.
The position of probe
The measuring timeshould be long.
Move the position of
probe.
5.2.4 The main trouble of Blood pressure
Failure Possible cause Solution
NIBP cuff cannot be inflated 1,Air way is folded or hasleakage.2,The keyboard is bad
1,Adjust or repair the airway.2, check the cable or replace it
Blood pressure cannot bemeasured occasionally.
Cuff becomes loose orpatient is moving.
Keep the patient quiet; bindthe cuff correctly and safely.
Error of blood pressuremeasurement is too great.
Cuff size does not fit thepatient.
Use the cuff withappropriate size.
Cuff inflates repeatedly butno data
Pressure board or thedeflation valve have trouble,cuff and the inner pipe ofmonitor have leakage.
Using other cuff check if thecuff is leak. If the cuff isexcellent, you should checkif the gas pipe is leak.Finally replace the pressureboard and deflation valve.
5.2.5 The main trouble of SpO2
Failure Possible cause Solution
No SpO2 waveform Sensor is damaged. Replace the sensor andconfirm the failure.
SpO2 waveform has strong
interference.
Patient is moving.
Environment light isvery intensive.
Keep the patient quiet.
Weaken the lightintensity in theenvironment.
SpO2 value is inaccurate. Coloring agent has beeninjected into patient body.
Remove the coloring agentbefore performmeasurement.
SpO2 sensor is hot. SpO2 sensor is damaged. Replace the SpO2 sensor.
SpO2 wave displays asinfill, no SpO2 data.
CSN801 board hasproblem.
Replace the board.
SpO2 wave displays aszigzag waveform.
The problem of ground wire Reconnect the ground wire.
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5.2.6 Display failures
Failure Possible cause Solution
When powering on thedevice, power supply is innormal operation, however,screen goes black duringnormal operation.
Backlight board damage
Bad connecting wire ofdisplay
Damage of main board
The battery isundercharge.
Connect external VGAdisplay and confirm thefailure.
Repair or replaceconnecting wire
Replace main board
Charge the battery.
5.2.7 Operation, recording, network linking failure
5.2.8 Other troubles
Failure Possible cause Solution
Rechargeable battery doesnot charge.
The battery isexhausted.
The power board isdamaged.
Charge for over 24hours.
Replace the battery andthe power board.
Some parameter areas areblank.
The color setup is incorrect. Reset the color ofparameter.
Not enter the monitor status Password is locked Pressing START twice,PRINT once release lock.
Start the monitor, themonitor can checkautomatically, but it stillstays starting Rom-Dos
Mainboards BIOS isdamaged
rewrite BIOS programmeor replace the main board
User Limited. Enterpassword
1,the expire date is earlierthan the current date2, the runtime is over theusetime
3. the mainboard is bad
1,change the setting2,change the setting3,replace it
Failure Possible cause SolutionKey or rotary encoder isdisabled.
Keyboard or rotaryencoder is damaged.
Connecting wire ofkeyboard is damaged.
Replace keyboard orrotary encoder.
Replaced or repairconnecting wire ofkeyboard.
Sound is raucous or there isno sound.
Keyboard failure
Speaker or connectingwire failure.
Replace keyboard.
Replace speaker orconnecting wire.
Recorder cannot executeprinting operation.
Recorder has no paper.
Recorder failure
Connecting wire of therecorder is damaged.
The model of printer has
been set incorrectly.
Install paper.
Replace the recorder.
Replace or repair theconnecting wire of therecorder.
Set the mode of printercorrectly.
Record paper goes outskew.
Bad recorder installing orpositioning.
Adjust the installation ofrecorder.
Cannot be linked intonetwork.
Network linking wire isdamaged.
Main board failure
Check and repairnetwork-linking wire.
Replace main board.
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Boot failureInsert disk in unit A
Mainboard is damaged replace
5.3 Error Message
Message Cause of Error
ECG ERRORCannot communicate with ECG part ofCSN801 board
LDOFF ECG cable or electrodes are off
PLETH ERRORCannot communicate with SPO2 part ofCSN801 board
PROBE OFF SPO2 sensor is off
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CHAPTER 6 CALIBRATION OF MONITOR
6.1 Required testing tools
The following tools are required to perform calibration and verification on the
MMED6000DP monitor.
l Mercury Manometer
l Patient Simulator(ECG: 30 to 300bpm 0.5-2.0mV amplitude, 1mV squarewave at 10Hz)
l Temperature Simulator 25 to 45
l NIBP Simulator (0 to 250 mmHg)
l Respiration testing tool (Respiration: 30bpm, 0.1 to 3.0 Ohm impedance,baseline impedance 500 Ohm).
l SPO2 signal Simulator
6.2 Power on the monitor
l For AC operation, confirm that AC Power wire is plugged in the connector onthe rear panel, and LED Power Indicator is lit Orange.
l For internal battery Operation, confirm that the LED Power Indicator isilluminated Green.
l Confirm that the Screen is displayed without any error messages whenpowering monitor on.
6.3 Front panel test
6.3.1 Rotary knob test
Rotate the knob in the clockwise direction while verifying that the highlight movesfrom icon to icon with a clockwise movement.
Rotate the knob in the counter-clockwise direction while verifying that the highlightmoves from icon to icon with a counterclockwise movement.
Highlight any parameter icon, rotate the knob clockwise in the parameter area, verifythat the movement of cursor is from up to down.
Highlight any parameter icon, rotate the knob counter-clockwise in the parameterarea, verify that the movement of cursor is from down to up.
Highlight the RETURN menu item, press the knob and verify that the menu is returnto the superior menu.
6.3.2 Verification of Keyboard control
PressALARMkey, observe that the alarm icon in frame of menu status will change.
Press SILENCE key, observe the silence icon in frame of menu status will change.
PressFREEZE key, one channel of the ECG waveform should be frozen,
PressSTART key will start NIBP measurement, and press the key again will cancel
this measurement.
Press PRINT key, it can print the relevant waveform and measured data if the printer
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is installed.
Press MENU key, the display is refreshed.
6.4 Audio system test
l Set the simulation item ON, the detailed operation please refer to the Section9.5 ECG Menu of Operators Manual
l Select ON for SOUND in ECG menu, the detailed operation please refer to theSection 9.5 ECG Menu of Operators Manual
l You will hear the simulated heart beep
6.5 Test of automatic storage
l Enter the ECG setup menu.
l Change the lead setup, e.g. select aVF for LEAD.
l Turn off the monitor, and power on it after 5 minutes.
l The lead should be the value you set up just now.
6.6 Alarm test
6.6.1 ECG alarm test
Connect the ECG Patient Simulator to the ECG input on the monitor side panel.
Set the Patient Simulator to output a 1mV QRS pulse at 60bpm, set the lead ofECG submenu as II
Set the heart rate high limit as 58bpm, low limit as 30bpm.
Set the heart rate alarm as on.
Verify the heart rate visual and auditory alarms, the heart rate data should flashand dudu voice should be heard.
Disconnect the ECG Patient Simulator
6.6.2 NIBP alarm test
Connect the NIBP Patient Simulator to the NIBP input on the monitor side panel.
Set the Patient Simulator to output Systolic: 120, Diastolic: 80
Set the systolic high limit as 110, low limit as 60.
Set the NIBP alarm as on.
Verify the systolic visual and auditory alarms, the systolic data should flash anddudu voice should be heard.
6.6.3 SPO2 alarm verification
Connect SPO2 Probe to the SPO2 connector on the monitor side panel.
Insert the operators finger into the finger sensor, the SPO2 measured value ofhealthy person should be 96%.
Set the SPO2 high limit as 90, low limit as 80.
Set the SPO2 alarm as on.
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Verify the SPO2 visual and auditory alarms, the SPO2 data should flash anddudu voice should be heard.
Disconnect the ECG Patient Simulator
6.7 ECG test
Attach the lead to the ECG patient simulator.
Set the patient simulator to output a 1mV
10Hz sine wave, set the wave of ECGsubmenu as 10mm/Mv, the ECG waveform should show the sine wave that theheight is 10mm.
Set the patient simulator to output a 1mV QRS pulse at 60bpm, set the lead ofECG submenu as II.
Verify the ECG waveform moving QRS pulses without jittering, the numberindicate an ECG count of 60bpm.
Set the patient simulator to output a 1mV QRS pulse at 120bpm, verify the ECG
waveform moving QRS pulses without jittering and the number indicate an ECGcount of 120bpm.
Set the patient simulator to output a 1mV QRS pulse at 240bpm, verify the ECGwaveform moving QRS pulses without jittering and the number indicate an ECGcount of 240bpm.
Set the patient simulator to output a 0.5mV QRS pulse at 30bpm, verify the ECGwaveform moving QRS pulses without jittering and the number indicate an ECGcount of 30bpm.
Set the patient simulator to output a 2mV QRS pulse at 240bpm, verify the ECG
waveform moving QRS pulses without jittering and the number indicate an ECG
count of 240bpm.
6.7.1 ECG LEAD OFF test
Perform the following procedure to verify if the function of ECG Lead Off works
orderly.
Attach the lead to the ECG patient simulator.
Set the patient Simulator to output a 1.0mV QRS pulse at 60BPM.
Select ECG Lead for
Remove one lead from simulator in turn (that pertains to the selected lead) until
all the leads have been tested. In this situation, verify that LEADOFF
message appears in ECG displaying frame of parameter area in 12S. Disconnect the Patient Simulator from the monitor front panel, the LEADOFF
message appears.
6.7.2 ST segment test
Perform the following procedure to verify if ST segment program works orderly.
Rotate and press the knob to enter ECG menu.
Rotate knob to select the lead item.
Set Patient Simulator to 1mV, 60bpm, POS at 0.8 setting.
Verify ST reading of +0.8 ( 0.05).
Set Patient Simulator to 1mV, 60bpm, POS at -0.8 setting.
Verify ST reading of -0.8 (
0.05).
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6.8 Respiration test
Attach the lead to the ECG patient simulator.
Rotate and press the knob to enter RESP menu.
Select INDEP for RESPTYPE item in the RESP submenu.
Set the Respiration Simulator to 0.5 Ohms impedance with baseline impedance
of 1000 Ohms
Set the Respiration Simulator to 15bpm, verify the RESP waveform correct and
the number indicate an RESP count of 15bpm.
Set the Respiration Simulator to 30bpm, verify the RESP waveform correct and
the number indicate an RESP count of 30bpm.
Set the Respiration Simulator to 60bpm, verify the RESP waveform correct and
the number indicate an RESP count of 60bpm.
6.9 Temperature test Connect a Temperature Simulator to the T1 input on the monitor side panel.
Verify the following readings:
1) 30
0.1
2) 35
0.1
3) 40 0.
Connect a Temperature Simulator to the T1 input on the monitor side panel.
Verify the following readings:
1) 30 0.1
2) 35
0.1
3) 40 0.
6.10 NIBP test
Connect the manual mercury manometer to the NIBP socket.
Set the CAL ON at the NIBP submenu of the monitor.
Inflate the cuff pressure manually to 50mmHg according to the reading of the
manual mercury manometer, then the cuff reading of the monitor should be 50
3mmHg.
Verify the following points
Reading of the manual mercury manometer: 100mmHg
Cuff reading of the monitor : 100 3mmHg
Reading of the manual mercury manometer: 150mmHg
Cuff reading of the monitor : 150 3mmHg
Reading of the manual mercury manometer: 250mmHg
Cuff reading of the monitor : 250 3mmHg
If an NIBP Simulator is available, test the NIBP range and accuracy as follows:
Adult range and accuracy verification:
Systolic Diastolic Tolerance
60 30 5mmHg80 50 5mmHg
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120 80 5mmHg
150 100 10mmHg
200 150 10mmHg
NOTE: the uncertainty specifications of the NIBP Simulator must be added to
the monitor tolerances for proper accuracy verification.
Test of over pressure:
1) Connect a sphygmomanometer to the NIBP inflate port
as following figure.
2) If the patient selection is NEONATTE (located under the NIBP icon),
perform the following to select ADULT:
a) Turn the Rotary Knob to highlight NIBP icon.
b) Press the Rotary Knob to select NIBP menu.
c) Turn the Rotary Knob to highlight MODE selection
d) Press the Rotary Knob and select AUTO selection.
3) Perform the following to set CAL ON:
a) Turn the Rotary Knob to highlight NIBP icon.
b) Press the Rotary Knob to select NIBP menu.
c) Turn the Rotary Knob to highlight ALARM selectiond) Press the Rotary Knob to select ALARM selection.
e) Turn the Rotary Knob to highlight CAL selection
f) Press the Rotary Knob to select CAL selection.
g) Turn the Rotary Knob to select ON selection.
4) Inflating the cuff manually by pressing the rubber ballonet. With the
pressure rising, the reading of sphygmomanometer is higher. When the
pressure over 280mmHg, the valve should deflate.
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6.11 SPO2 test
Connect SPO2 Probe to the SPO2 connector on the monitor side panel.
Insert the operators finger into the finger sensor, the SPO2 measured value of
healthy person should be from 95% to 99%, and the pulse rate is same as heart
rate, the waveform of the SPO2 is smooth with no step.
If SPO2 Simulator is available, verify the accuracy of Oxygen Saturation Value
with BCI probes as follows:
Oxygen Saturation Tolerance
96% 2%
86% 2%
76% 3%
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CHAPTER 7 ADJUSTMENT PROCEDURE
NOTE
The MMED6000DP Monitor contains a great number of Static Sensitive circuits. All
service procedures must be done by grounded personnel.
7.1 ECG adjustment
ECG gain is fixed. User cannot adjust it. If ECG gain dose not meet the standard
demand. Please contact the service person of Choice Co.
7.2 NIBP adjustment
7.2.1 Cuff pressure calibration
Perform cuff pressure calibration as follows:
Connect a manometer with the NIBP inflating port as Fig. 7-1
Fig. 7-1
Perform the following to set CAL ON:
a) Rotate and press the knob to enter NIBP menu.
b) Then highlight ALARM to select the submenu.
c) Select ON for CAL.
Inflate the cuff manually by pressing the rubber ballonet.
Inflate the cuff to 200mmHg and observe the NIBP value displayed on the
monitor, if which equals to the value displayed on the manometer.
If the error exceeds 3mmHg, adjust the VR1 on the CSN801 board shown as Fig.
7-2.
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Fig. 7-2
7.2.2 Setup of deflection and offset
Rotate the knob to call up ALARM submenu of NIBP, set the high limit and low limit to
maximum. For example, if you want to adjust systolic, set the high limit of systolic to 255,
low limit to 220, then press RETURN to return the superior menu, next press RETURN of
the superior menu again back the main menu, at that time, you will find NIBP menu haschanged as Fig.7-3:
Fig.7-3
SYSQUTY: quotiety of diastolic and systolic value
SYSOFFS: offset of diastolic and systolic value
7.3 SpO2 adjustment
Rotate the knob to highlight the SPO2 icon in the displaying area, pick the SpO2
icon to call up the SpO2 setup menu as Fig. 7-4
Fig.7-4
Then press ALARM icon to enter ALARM submenu, set the high limit to
100(maximum), and low limit to 99(maximum).
Fig.7-5
Press RETURN to enter the SpO2 main menu, which has changed as Fig.7-6,
OFFSET item displays on the screen. You can adjust the value in this item. For
Example, if the SpO2 value is 3 lower than standard, you can adjust OFFSET
value as 3 (Figure 4); If the value is higher than standard, you can adjust value
as 2.
Fig.7-6
VR1
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7.4 IBP Calibration
7.4.1 Zeroing the Transducer
WARNING
Close the one way of the transducers three-way connected to the patient before zeroing.
l Transducer should be connected with air before zeroing
l Put the transducer at the same level with the patients cardio, namely
approximately mid-axillary lines level.
l The zeroing must be done before the monitor used to monitor the patients and
at least one time everyday. (The zeroing must be done after inserting or taking
out the power supply wire.)
1. Connect the transducer with cable, install DOME. The both ends of DOME should be
connected with air (e.g.: IBP1)
2. Set the pressure revising value to zero.3. The pressure value will be shown on the IBP channel1, S, D value also will be shown,
and please take the shown S value as criterion
4. The S value should be 0, 1, 2, or 3. The tolerance is 0.4 kPa (3mmHg).
5.If the error exceeds the tolerance, please enter into IBP1 pressure revising item to
adjust IBP1 revising value and let S value be zero.
Fig.7-7
7.4.2 Mercury manometer calibrations
Keys
Mercury manometer calibration should be processed when starting to use the new
transducer or regularly be processed according to hospitals rules.
l The purpose of the calibration is to insure that the system can give accurate
measure result.
l You must zero the transducer before the mercury manometer calibration.
l If you want to calibrate the transducer by yourself, required equipment should
be:Standard sphygmomanometer
3-way switch
About 25 centimeter pipeline
Calibration steps
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Fig.7.8 IBP calibration
WARNING
Never perform this calibration while patient is being monitored.
1. Close the 3-way that was open to atmospheric pressure for the zero calibration
2. Connect the pipeline to the sphygmomanometer
3. Ensure the patient isnt connected with the transducer.
4. Connect another 3-way switch with the 3-way that disconnects with the patients
pipeline (when patient is being monitored). Connect injector to one port of the 3-way,
then the sphygmomanometer and pipeline be connected the other port, open one way of
the 3-way which connect with sphygmomanometer. Ensure pressure value is zero, press
ZERO item in the menu of pressure revise value.
Fig.7.9
When presses ZERO, the menu shows as follow:
Fig.7.10
5
Inflating the mercury to the 200mmHg(or other appointed value)6. The pressure value will be shown on the IBP channel 1, S, D value also will be
shown. And take the S value as criterion.
7.The S value should be 200mmHg, The tolerance is 0.4Kpa(3mmHg).
8 If exceed the tolerance, setup TWO menu. Under TWO item, the pressure setup
value can be adjusted between 0-400mmHg(step distance: 20mmHg) .
WARNING:
The pressure value should be as same as mercury pressure value. For example: setup
this calibration to 200mmHg under TWO item, then return.
9
After one time calibration the mercury manometer can be deflated, then add pressure
renewably, checking the transducers veracity after calibration. If not correct, please
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repeat the above steps and redoing calibration operation.
10
Remove the blood-pressure pipeline and the additive 3-way.
7.5 Et-co2 adjustment
7.5 ET-CO2 calibration
7.5.1 Rotate the knob to highlight the RESP icon in the displaying area, pick the RESP
icon to call up the RESP setup menu as Fig. 7-11, then select CO2 for the type
item.
Fig.7-11
7.5.2 Then press ALARM icon to enter ALARM submenu, set the high limit to 75(maximum), and low limit to 70(maximum), next please press RETURN to back
the former menu.
Fig.7-12
7.5.3 Enter into the CO2SETUP again, OFFSET item is appeared on the menu, then
you can adjust the offset from 20 to +20 to calibrate the CO2 value.
Fig.7-13
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CHAPTER 8DISASSEMBLY PROCEDURE
8.1 Monitor disassembly
NOTE
The disassembly procedures should be performed by qualified person.
Perform the following procedure to open external cabinet:
Disconnect AC power wire from monitor rear panel.
Unscrew the 3 screws from the rear panel of monitor.
Fig.8-1
After unscrewing 3 screws, the front panel and rear panel are separated.
8.2 Battery disassembly
After opening the front panel, the inside components are exposed.
Screw 1
Screw 2
Screw 3
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Fig.8-2
Unscrew the 6 screws on the metal shell; the battery and adapter are disassembled
together from inner. Draw the battery out the shell.
Unplug the battery cable from the power board, the battery can be removed.
Fig.8-3
Battery
AC-DC
adapter
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CHAPTER 9 CLEANING AND DISINFECTION
NOTE
Before cleaning the monitor or the sensor, make sure to turn off the power and
disconnect the AC power.
9.1 Maintenance checks
Before using the monitor, do the following:
1. Check if there is any mechanical damage;
2. Check all the outer cables, inserted modules and accessories;
3. Check all the functions of the monitor to make sure that the monitor is in good
condition.
If finding any damage on the monitor, stop using the monitor on patient.
6. The overall check of the monitor, including the safety check, should be performed
only by qualified person once every 6 to 12 month and each time after fix up.
9.2 General cleaning
1. MMED6000DP Patient Monitor must be kept dust-free.
2. It is recommended to regularly cleaning the monitor shell and the screen. Use only
non-caustic detergents such as soap and water.
NOTE
Please pay special attention to the following items to avoid damaging
MMED6000DP:
1. Avoid using ammonia-based or acetone-based cleaners such as acetone.
2. Most cleaning agents must be diluted before use. Follow the manufacturer's
directions carefully for dilution.
3. Do not use the grinding material, such as steel wool etc.
4. Do not let the cleaning agent enter into the chassis of the system. Do not
emerge any part of the device into any liquid.
5. Do not leave the cleaning agents on any part of the device surface.
6. Except for those cleaning agents listed in NOTE part, following disinfectants
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can be used on the instrument:
l Diluted Ammonia Water
l Diluted Sodium Hyoichlo (Bleaching agent).
NOTE
The diluted sodium hyoichlo from 500ppm(1:100 diluted bleaching agent) to
5000ppm (1:10 bleaching agents) is very effective. The concentration of the diluted
sodium hyocihlo depends on how many organisms (blood, mucus) on the surface
of the chassis to be cleaned.
l Diluted Mindrayhylene Oxide 35% -- 37%
l Hydrogen Peroxide 3%
l Alcohol
l Isopropanol
NOTE
l MMED6000DP monitor and sensor surface can be cleaned with hospital-grade
ethanol and dried in air or with soft and clean cloth.
l Choice Co. has no responsibility for the effectiveness of controlling infectious
disease using these chemical agents. Please contact infectious disease
experts in your hospital for details.
9.3 Sterilization
To avoid extended damage to the equipment, sterilization is only recommended when
stipulated as necessary in the Hospital Maintenance Schedule. Sterilization facilities
should be cleaned first.
Recommended sterilization material: Ethylate, and Acetaldehyde.
CAUTION
1. Follow the manufacturers instruction to dilute the solution, or adopt the lowest
possible density.
2. Do not let liquid enter the monitor.
3. No part of this monitor can be subjected to immersion in liquid.
4. Do not pour liquid onto the monitor during sterilization.
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5. Use a moistened cloth to wipe off any agent remained on the monitor.
6. To avoid extended damage to the equipment, disinfecting is only recommended
when stipulated as necessary in the Hospital Maintenance Schedule.
Disinfecting facilities should be cleaned first.
7.Appropriate disinfecting materials for ECG lead, SpO2 sensor, blood pressure
cuff, TEMP probe, IBP sensor are introduced Operators Manual respectively.
8. Do not use EtO gas or formaldehyde to disinfect the monitor.
9.4 Precondition and cleaning
NOTE
Before cleaning the monitor or the sensor, make sure to turn off the power and
disconnect the AC power.
If ECG cable is damaged or aged, replace with a new ECG cable.
1 Cleaning
MMED6000DP monitor and sensor surface can be cleaned with hospital-grade ethanol
and dried in air or with soft and clean cloth.
2 Sterilization
To avoid extended damage to the equipment, sterilization is only recommended when
stipulated as necessary in the Hospital Maintenance Schedule. Sterilization facilities
should be cleaned first.
3 Materials recommended for use in sterilization
Ethylate: 70%
ethanol: 70%
Acetaldehyde
4 Disinfection
To avoid extended damage to the equipment, disinfection is only recommended when
stipulated as necessary in the Hospital Maintenance Schedule. Disinfection facilities
should be cleaned first.
9.5 TEMP sensor cleaning and disinfection
1. The TEMP probe should not be heated above 100 (212). It should only be
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subjected briefly to temperatures between 80 (176) and 100 (212).
2. The probe must not be sterilized in steam.
3. Only detergents containing no alcohol can be used for disaffection.
4. The rectal probes should be used, if possible, in conjunction with a protective rubber
cover.
5. To clean the probe, hold the tip with one hand and with the other hand rubbing the
probe down in the direction of the connector using a moist lint-free cloth.
NOTE
l Disposable TEMP probe must not be re-sterilized or reused.
l For protecting environment, the disposable TEMP probe must be recycled or
disposed of properly.
9.6 SpO2 sensor cleaning and disinfection
NOTE
Do not subject the sensor to autoclaving.
Do not immerse the sensor into any liquid.
Do not use any sensor or cable that may be damaged or deteriorated.
1. Use a cotton ball or a soft mull moistened with hospital-grade ethanol to wipe the
surface of the sensor, and then dry it with a cloth. This cleaning method can also be
applied to the luminotron and receiving unit.
2. The cable can be cleaned with 3% hydrogen dioxide, 7% isopropanol, or other active
reagent. However, connector of the sensor shall not be subjected to such solution.
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CHAPTER 10 WARRANTY
10.1 Warranty and repair
Repair response time: AM9:00 to PM17: 30 on Monday to Friday except legal holiday.
Repair time: AM9:00 to PM17: 30 on Monday to Friday except legal holiday.
Repair service: Including telephone support, field inspecting, fittings replacement.
l Telephone support: we can give guidance to customers engineer to inspecting
the instrument when you dial our service line (86-10-86863551). Professional
repair engineer online provides technical support.
l Field inspecting: we will send engineers to repair the instrument if necessary.
Certified engineers of our company or local repair team trained by our companyprovide this service.
l Fittings replacement: if necessary, we will replace the damaged fittings according
to contract. The damaged fittings should be returned to us expect for special
reason.
Spare machine for repair: it is used to replace the damaged machine for customer
using, customer should send the damaged machine to us to repair.
Repair for sponsoring and contributing machine: customer should send the machine
to us to repair.
Updating software is free.
10.2 Exemption and restriction
Warranty does not apply to the damage or loss sustained due to well-known act
of god, such as fire, earthquake, f lood, thunder, cyclone,
hail, electrical storm, blast, building collapse, commotion,
etc.
Non-service items:
The cost and insurance of dismantling and testing, overhauling, reinstall, transfer,
moving the instrument or parts.
Damage or loss sustained due to inspected or repaired by other institute that is not
certified
Damage or alteration by anyone other than our company authorized service
personnel.
The damage or lose sustained due to connection to peripheral equipment (such as
printer, computer etc.), that are not provided by our company are not covered by the
warranty.
Obligation restriction: In the duration of warranty, if the operators use other fittings that
are not provided by us, we reserve the right to cancel warranty.
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10.3 Customer guarantee
Read the user manual in details before operation.
Operation and maintenance according to the user manual, and guarantee the
requests of power and environment.
10.4 Non-warranty and non-replacement policy
The work environment is not eligible. For example, if the relative humidity
exceeds 70%, circuit boards of the instrument may be damaged due to
condensate.
If voltage of power supply is fluctuant and exceeds 240VAC, the power
adapter may be damaged.
There is smear or marks that are not belong to the instrument and cannot
be removed from the outside surface of the instrument.
The instrument or its fittings are mechanically damaged.
The circuit is short and damaged due to liquor or other stuff flow in the
instrument or its fittings.
All probe and its accessories are not free replacement.
Leakage of air cell of blood pressure sleeve due to improper storage or
operation is not free replacement.
The malfunction with result form improper repair by anyone other than our
company authorized service personnel.
The malfunction with result from improper use.
10.5 Customer special warranty periodDue to we stipulate the warranty period according to the relevant electronic regulation of
country, which we stipulate is on year, accessory is three months. When customer
requires to extending the warranty period, you should consider whether it is reasonable.
Because electronic product quickly replace, as to the warranty period over three years,
purchased accessories may be out of stock. In this case, we will adopt to entirely
upgrade or replace the old, you should pay the minimum acceptable cost of renewed
device.
10.6 Repackaging
Remove all the detectors, leads and accessories and put them into the plastic bag.
Try to use the original packaging case and materials. Any damage due to the improper
packaging during the transportation shall be responsible by the user.
If you are still within the period of warranty, please present the warranty card and one
copy of the invoice or receipt.
Please present a written note detailing all the troubles when repairing theinstrument.
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For further information or assistance with this product:
Beijing Choice Electronic Technology Co., Ltd.
Room 1126-1127,BuildingB, BAILANGYUAN No.A36, Fuxing Road, Beijing ChinaZip Code: 100039
Tel: +86-10-88203551 +86-10-88203520
Fax: +86-10-88204632
E-mail:[email protected] ;[email protected]
http://www.choicemmed.com
mailto:E-mail:[email protected]:[email protected]://www.choicemmed.com/http://www.choicemmed.com/mailto:[email protected]:E-mail:[email protected]