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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MMED60000DP (S6) Service Manual

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right to this unpublished work and intends to maintain this work as confidential.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may also seek to maintain this work as an unpublished copyright.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.


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


No RESP waveform orRESP waveform isabnormal.

Electrodes areconnected incorrectly.

Patient is movingconstantly.


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


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


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


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


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.


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


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.





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





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


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


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]

Choice 6000 Service Manual

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Transcript of Choice 6000 Service Manual