Mindray DPM7 User manual

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DPM 7 Patient Monitor

Service Manual

Intellectual Property Statement

Mindray DS USA, Inc. (hereinafter called Mindray DS) owns the intellectual property rights

to this product and this manual. This manual may refer to information protected by

copyrights or patents and does not convey any license under the copyright or patent rights of

Mindray DS, nor the rights of others. Mindray DS does not assume any liability arising out of

any infringements of patents or other rights of third parties.

Mindray DS intends to maintain the contents of this manual as confidential information.

Disclosure of the information in this manual in any manner whatsoever without the written

permission of Mindray DS is strictly forbidden. Release, amendment, reproduction,

distribution, rent, adaptation and translation of this manual in any manner whatsoever without

the written permission of Mindray DS is strictly forbidden.

is a trademark or a registered trademark of Shenzhen Mindray

Bio-Medical Electronics Co., Ltd. All third-party trademarks that appear in this manual are

used solely for editorial purposes and are the property of their respective owners.

Contents of this manual are subject to changes without prior notice.

Revision History

This manual has a revision number. This revision number changes whenever the manual is

updated due to software or technical specification change. Contents of this manual are subject

to change without prior notice.

 Revision number: 5.0  Release time: 2012-02

FOR YOUR NOTES

Preface

Manual Purpose

This manual provides detailed information about the assembling, dissembling, testing and

troubleshooting of the equipment to support effective troubleshooting and repair. It is not

intended to be a comprehensive, in-depth explanation of the product architecture or technical

implementation. Observance of the manual is a prerequisite for proper equipment

maintenance and prevents equipment damage and personnel injury.

This manual is based on the maximum configuration; Therefore, some contents may not

apply to your monitor. If you have any question, please contact our Customer Service

Department.

Intended Audience

This manual is for biomedical engineers, authorized technicians or service representatives

responsible for troubleshooting, repairing and maintaining the patient monitors.

III

Abbreviations

Abbreviations used in this manual are:

MPM multi-parameter module

SMR satellite module rack

CMS central monitoring system

PCB printed circuit board

Passwords

A password may be required to access different modes within the monitor. The passwords are

listed below:

 User maintenance: 888888  Factory maintenance: 332888  Demo mode: 2088

Contents

1 Safety ................................................................................................................................. 1-1

1.1 Safety Information ..........................................................................................................1-1

1.1.1 DANGER ........................................................................................................... 1-2

1.1.2 Warnings............................................................................................................. 1-2

1.1.3 Cautions ............................................................................................................. 1-2

1.1.4 Notes .................................................................................................................. 1-3

1.2 Equipment Symbols ........................................................................................................ 1-3

2 Theory of Operation ........................................................................................................ 2-1

2.1 Introduction..................................................................................................................... 2-1

2.2 System Connections ........................................................................................................ 2-2

2.2.1 Mounting the Patient Monitor ............................................................................ 2-2

2.2.2 Connectors for Peripheral Devices..................................................................... 2-3

2.3 Main Unit ........................................................................................................................ 2-4

2.3.1 Input System ...................................................................................................... 2-5

2.3.2 Output System.................................................................................................... 2-6

2.3.3 Processing and Communications System........................................................... 2-7

2.3.4 Power Management System ............................................................................... 2-9

2.3.5 Equipment Interface System ............................................................................ 2-12

2.4 Parameter Module ......................................................................................................... 2-14

2.4.1 Module Infrared Communication Board .......................................................... 2-14

2.4.2 Module Power Board ....................................................................................... 2-14

2.4.3 Parameter Board............................................................................................... 2-14

2.5 Satellite Module Rack ................................................................................................... 2-15

3 Testing and Maintenance................................................................................................. 3-1

3.1 Introduction..................................................................................................................... 3-1

3.1.1 Test Equipment................................................................................................... 3-1

3.1.2 Test Report ......................................................................................................... 3-2

3.1.3 Preventative Maintenance .................................................................................. 3-2

3.1.4 Recommended Frequency .................................................................................. 3-2

3.2 Preventative Maintenance Procedures ............................................................................ 3-4

3.2.1 Visual Inspection................................................................................................ 3-4

3.2.2 NIBP Tests and Calibration ................................................................................ 3-5

3.2.3 Sidestream and Microstream CO

3.2.4 AG Tests ........................................................................................................... 3-10

3.2.5 Preventative maintenance test report................................................................ 3-12

3.3 Power On Test ...............................................................................................................3-14

Module Tests................................................ 3-8

3.4 Module Performance Tests............................................................................................ 3-15

3.4.1 ECG Tests and Calibration ............................................................................... 3-15

3.4.2 Resp Performance Test..................................................................................... 3-16

3.4.3 SpO

Test.......................................................................................................... 3-16

3.4.4 NIBP Tests........................................................................................................ 3-16

3.4.5 Temp Test ......................................................................................................... 3-17

3.4.6 IBP Tests........................................................................................................... 3-17

3.4.7 C.O. Test........................................................................................................... 3-19

3.4.8 Mainstream CO

3.4.9 Sidestream and Microstream CO

Tests...................................................................................... 3-20

Module Tests.............................................. 3-21

3.4.10 AG Tests ......................................................................................................... 3-21

3.4.11 ICG Test ......................................................................................................... 3-22

3.4.12 BIS Test .......................................................................................................... 3-22

3.4.13 RM Test .......................................................................................................... 3-23

3.4.14 CCO/SvO

Tests ............................................................................................. 3-24

3.5 Nurse Call Relay Performance Test .............................................................................. 3-25

3.6 Analog Output Performance Test .................................................................................. 3-25

3.7 Electrical Safety Test..................................................................................................... 3-26

3.8 Touchscreen Calibration................................................................................................ 3-26

3.9 Recorder Check............................................................................................................. 3-26

3.10 Network Print Test ...................................................................................................... 3-27

3.10.1 Equipment Connection and Setup .................................................................. 3-27

3.10.2 Print Function Test ......................................................................................... 3-27

3.11 Battery Check..............................................................................................................3-28

3.12 Factory Maintenance ................................................................................................... 3-29

3.12.1 Accessing Factory Maintenance Menu........................................................... 3-29

3.12.2 Drawing Waves .............................................................................................. 3-29

3.12.3 Recorder ......................................................................................................... 3-29

3.12.4 Software Version ............................................................................................ 3-30

3.12.5 Monitor Information....................................................................................... 3-31

3.12.6 Calibrate NIBP ............................................................................................... 3-31

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

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

4.2 Part Replacement ............................................................................................................4-1

4.3 Patient Monitor Status Check.......................................................................................... 4-1

4.4 Software Version Check.................................................................................................. 4-2

4.5 Technical Alarm Check ................................................................................................... 4-2

4.6 Troubleshooting Guide.................................................................................................... 4-2

4.6.1 Power On/Off Failures ....................................................................................... 4-2

4.6.2 Display Failures ................................................................................................. 4-3

4.6.3 Module Rack Failures ........................................................................................ 4-4

4.6.4 Alarm Problems.................................................................................................. 4-6

4.6.5 Button and Knob Failures .................................................................................. 4-7

4.6.6 Recorder Failures ............................................................................................... 4-7

4.6.7 Interface Failures................................................................................................ 4-8

4.6.8 CF Card Problems .............................................................................................. 4-8

4.6.9 Power Supply Failures ....................................................................................... 4-9

4.6.10 Network Related Problems............................................................................. 4-10

4.6.11 Software Upgrade Problems............................................................................4-11

4.6.12 Technical Alarm Messages ..............................................................................4-11

4.6.13 M51A Self Test Information........................................................................... 4-12

5 Repair and Disassembly .................................................................................................. 5-1

5.1 Tools................................................................................................................................ 5-1

5.2 Preparations for Disassembly.......................................................................................... 5-1

5.3 Basic Disassembly .......................................................................................................... 5-2

5.3.1 Disconnecting the Base ...................................................................................... 5-2

5.3.2 Separating the Front and Rear Half of the Monitor............................................ 5-4

5.4 Further Disassembly........................................................................................................ 5-6

5.4.1 Removing the Power Switch & LED Board ...................................................... 5-6

5.4.2 Disconnecting the Encoder Assembly................................................................ 5-7

5.4.3 Removing the Button Board............................................................................... 5-7

5.4.4 Removing the Touchscreen Control Board ........................................................ 5-8

5.4.5 Removing the Inverter........................................................................................ 5-9

5.4.6 Removing the LCD Screen .............................................................................. 5-10

5.4.7 Removing the Alarm Lamp Board ................................................................... 5-12

5.4.8 Removing the Wireless AP............................................................................... 5-13

5.4.9 Removing the CF Assembly............................................................................. 5-15

5.4.10 Removing the Main Board ............................................................................. 5-16

5.4.11 Removing the Fan .......................................................................................... 5-18

5.4.12 Removing the Speaker ................................................................................... 5-18

5.4.13 Removing the Interface Board Assembly....................................................... 5-19

5.4.14 Removing the Power Supply Assembly ......................................................... 5-20

5.4.15 Removing the Integral Module Rack ............................................................. 5-24

5.4.16 Removing the Recorder.................................................................................. 5-28

5.5 Removing the SMR Assembly...................................................................................... 5-33

5.6 Disassembling Modules ................................................................................................ 5-37

5.6.1 Disassembling the ICG Module ....................................................................... 5-37

5.6.2 Disassembling CO

Module ............................................................................. 5-40

5.6.3 Disassembling the New MPM Module ............................................................ 5-46

6 Parts .................................................................................................................................. 6-1

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

6.2 Main Unit ........................................................................................................................ 6-2

6.3 Base Assembly................................................................................................................ 6-3

6.4 Front housing Assembly.................................................................................................. 6-4

6.4.1 17” LCD with Anti-glare Screen........................................................................ 6-4

6.4.2 17” LCD Touchscreen........................................................................................ 6-6

6.5 Rear Housing Assembly.................................................................................................. 6-8

6.5.1 Rear Housing Assembly..................................................................................... 6-8

6.5.2 Power module................................................................................................... 6-10

6.5.3 Integral Module Rack....................................................................................... 6-12

6.5.4 Interface Board Assembly ................................................................................ 6-13

6.5.5 Main Support Assembly................................................................................... 6-15

6.5.6 Main Control Board Assembly......................................................................... 6-17

6.5.7 6800 Internal Wireless AP Assembly ............................................................... 6-18

6.5.8 Others ............................................................................................................... 6-18

6.6 SMR Assembly ............................................................................................................. 6-20

6.6.1 SMR Assembly................................................................................................. 6-20

6.6.2 SMR Inside Assembly...................................................................................... 6-21

6.7 Parameter Modules........................................................................................................ 6-22

6.7.1 MPM Module ................................................................................................... 6-22

6.7.2 New MPM Module .......................................................................................... 6-24

6.7.3 C.O. Module..................................................................................................... 6-26

6.7.4 RM Module ...................................................................................................... 6-28

6.7.5 ICG Module ..................................................................................................... 6-29

6.7.6 AG Module....................................................................................................... 6-31

6.7.7 BIS Module ...................................................................................................... 6-33

6.7.8 IBP Module ...................................................................................................... 6-34

6.7.9 Mindray CO

6.7.10 Oridion CO

Module....................................................................................... 6-35

Module ...................................................................................... 6-37

6.7.11 CCO Module .................................................................................................. 6-38

6.8 Remote Display Box ..................................................................................................... 6-40

6.9 Wireless AP................................................................................................................... 6-41

6.10 Replaceable Parts ........................................................................................................ 6-42

Main Unit ................................................................................................................ 6-42

6.10.1......................................................................................................................... 6-42

SMR ........................................................................................................................ 6-44

6.10.2......................................................................................................................... 6-44

6.10.3 New MPM Material ....................................................................................... 6-44

6.10.4 Parameter Modules......................................................................................... 6-46

6.10.5 Cables............................................................................................................. 6-47

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

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

7.2 Upgrading Parameter Modules........................................................................................ 7-2

7.3 Upgrading Functional Assemblies .................................................................................. 7-4

7.3.1 Upgrading SMR ................................................................................................. 7-5

7.3.2 Upgrading Wireless Network Function.............................................................. 7-5

7.3.3 Upgrading Recorder ........................................................................................... 7-5

7.3.4 Upgrading Analog Output.................................................................................. 7-5

7.3.5 Upgrading CIS ................................................................................................... 7-5

7.4 Upgrading Software ........................................................................................................ 7-6

7.4.1 How to Upgrade Software.................................................................................. 7-7

A Electrical Safety Inspection ........................................................................................... A-1

A.1 Power Cord Plug ........................................................................................................... A-2

A.2 Device Enclosure and Accessories................................................................................ A-2

A.3 Device Labeling ............................................................................................................ A-3

A.4 Protective Earth Resistance ........................................................................................... A-3

A.5 Earth Leakage Test ........................................................................................................ A-5

A.6 Patient Leakage Current ................................................................................................ A-6

A.7 Mains on Applied Part Leakage .................................................................................... A-8

A.8 Patient Auxiliary Current .............................................................................................A-11

A.9 Functional test .............................................................................................................A-12

FOR YOUR NOTES

1 Safety

1.1 Safety Information

DANGER

z Indicates an imminent hazard that, if not avoided, will result in death or serious

injury.

WARNING

z Indicates a potential hazard or unsafe practice that, if not avoided, could result in

death or serious injury.

CAUTION

z Indicates a potential hazard or unsafe practice that, if not avoided, could result in

minor personal injury or product/property damage.

NOTE

z Provides application tips or other useful information to ensure that you get the

most from your product.

1-1

1.1.1 DANGER

There are no dangers that refer to the product in general. Specific “Danger” statements may

be given in the respective sections of this manual.

1.1.2 Warnings

WARNING

z All installation operations, expansions, changes, modifications and repairs of this

product are conducted by Mindray authorized personnel.

z There is high voltage inside the equipment. Never disassemble the equipment

before it is disconnected from the AC power source.

z When you disassemble/reassemble a parameter module, a patient leakage current

test must be performed before it is used again for monitoring.

z The equipment must be connected to a properly installed power outlet with

protective earth contacts only. If the installation does not provide for a protective

earth conductor, disconnect it from the power line and operate it on battery power,

if possible.

z Dispose of the package material, observing the applicable waste control regulations

and keeping it out of children’s reach.

1.1.3 Cautions

CAUTION

z Make sure that no electromagnetic radiation interferes with the performance of the

equipment when preparing to carry out performance tests. Mobile phone, X-ray

equipment or MRI devices are a possible source of interference as they may emit

higher levels of electromagnetic radiation.

z Before connecting the equipment to the power line, check that the voltage and

frequency ratings of the power line are the same as those indicated on the

equipment’s label or in this manual.

z Protect the equipment from damage caused by drop, impact, strong vibration or

other mechanical force during servicing.

1-2

1.1.4 Notes

NOTE

z Refer to Operation Manual for detailed operation and other information.

1.2 Equipment Symbols

Attention: Consult

accompanying documents

(this manual).

CIS connector

Danger: High-voltage

Alternating current(AC)

Power ON/OFF

Battery indication

Zero key

Calibrate key

Measure/Standby

Check sensor

ESD warning symbol for Electrostatic sensitive devices.

Network connector

Defibrillator connector

Connector for satellite

module rack

Video output

Auxiliary output connector

USB connector

Equipotential terminal

CE marking

Type CF applied part. Defibrillator-proof protection against electric shock.

Type BF applied part. Defibrillator-proof protection against electric shock.

1-3

FOR YOUR NOTES

1-4

2 Theory of Operation

2.1 Introduction

This patient monitor is designed to monitor a fixed set of physiological parameters including

ECG, heart rate (HR), respiration (Resp), temperature (Temp), SpO

non-invasive blood pressure (NIBP), invasive blood pressure (IBP), cardiac output (C.O.),

carbon dioxide (CO

bispectral index (BIS) and respiration mechanics (RM) of single adult, pediatric and neonatal

patients.

), oxygen (O2), anesthetic gas (AG), impedance cardiograph (ICG),

, pulse rate (PR),

The patient monitor also:

 Provides audible and visual alarm indications in case of patient or equipment problems.  Enables displaying, reviewing, storing and transferring of real-time data.  Incorporates multiple input devices such as buttons, knob, touchscreen, keyboard and

mouse.

 Interfaces a clinical information system or central monitoring system.  Enables program upgrade over the network.

2-1

2.2 System Connections

2.2.1 Mounting the Patient Monitor

The patient monitor can be mounted on a wall bracket or on a trolley support. The wall

bracket or trolley support can be ordered optionally. Each type of mounting bracket is

delivered with a complete set of mounting hardware and instructions. Refer to the

documentation delivered with the mounting hardware for instructions on assembling mounts.

CAUTION

z Use mounting brackets we supply or approve. If other compatible mounting

bracket is used, be sure it can be safely used on the patient monitor.

z The mounting bracket should be installed by our qualified service personnel, or

engineers who have adequate knowledge on it.

z If other mounting solution is used, the installation personnel and the customer

should verify if it can be safely used on the patient monitor, and the customer

assume the responsibility for any risk resulting from that.

2-2

2.2.2 Connectors for Peripheral Devices

On the back of the patient monitor you will find all connectors for peripheral devices.

1. AC Power Connector: used to connect an AC power source (100 to 240 VAC, 50/60Hz).

2. Equipotential Terminal: used to connect the equipotential terminal of other equipment,

eliminating potential difference between different pieces of equipment.

3. SMR Connector: It outputs a 12V DC, used to connect the SMR.

4. Video Output: It is a DVI-D connector used to connect a secondary display.

5. CIS Connector: It is a RJ45 connector used to connect a CIS.

6. Network Connector: It is a RJ45 connector used to connect an ethernet network or a PC.

7. Analog Output and Defibrillator Connector: It is a Micro-D connector used to output

analog signals and defibrillator synchronization signals.

8. Auxi Output Connector: It is a BNC connector used to output nurse call signals.

9. Secondary USB Connector: used to connect the mouse and keyboard of the secondary

display.

10. General USB Connector: used to connect any USB-compatible peripheral device.

2-3

2.3 Main Unit

The patient monitor consists of:

 Input system: button board, knob, touchscreen, power switch and LED board  Output system: LCD panel, alarm LED board, recorder, speaker  Processing and communications system: main board, CIS assembly, integral module

rack

 Power management system: battery, battery interface board, power module  Equipment interface system: USB interface board, DVI interface board, CF card

assembly and internal wireless network card.

Additionally, the patient monitor can also connect a satellite module rack (SMR), parameter

modules, mouse, keyboard, etc.

The following diagram illustrates the structure of the patient monitor.

2-4

2.3.1 Input System

Button board

The button board, located at the lower part of the monitor’s front panel, contains 6 keys and

provides connections for the following components to the main board:

 Knob  Power switch & LED board  Touchscreen control board  Backlight board  Alarm LED board

The following diagram shows the button board connections.

Knob

The knob can be pressed, or rotated both clockwise and counter-clockwise. It is connected

with the button board.

Touchscreen

The touchscreen enables touch operations and can be calibrated. It is connected with the

touchscreen control board and main board.

Power switch & LED Board

The power switch & LED board controls the power supply for the main unit. It has three

LEDs, which respectively indicate the AC power status, battery status and monitor power

on/off status. It is connected with the button board.

2-5

2.3.2 Output System

LCD

The patient monitor adopts a high-resolution LCD. The LCD is connected with the main

board. Signals and power supply of the backlight board are transferred by the button board.

Alarm Lamp

The patient monitor has two alarm lamps: alarm lamp and technical alarm lamp. Alarm lamp

lights either red or yellow whereas technical alarm lamp lights blue only. The signals from

the alarm lamps are transferred by the button board and are controlled directly by the main

board.

Recorder

The recorder receives data coming form the main board and then sends them to the thermal

printhead for printing. The recorder has a hardkey (starting/stopping recordings) and a green

LED on its front. It is connected with the main board.

The following diagram shows its operating principle.

2-6

Module Description

Power interface Introduces a DC from the main board.

Power module

CPU Control the communications between modules.

Signal interface

Motor drive circuit

Button & LED

board

Converts the input power into voltages that fit each module and then

forwards them to each module.

Control the communications between the main board and the

recorder CPU.

Receives the control signals from the CPU and then forwards them to

the step engines.

Includes one button and one LED which are directly controlled by

the CPU.

Speaker

The speaker provides sound for alarms, key strokes, heart beats and pulse, and allows PITCH

TONE and multi-level tone modulation. It is connected with the main board and is directly

driven by the main board.

2.3.3 Processing and Communications System

Main Board

The main board is the heart of the patient monitor. It implements a series of tasks including

input & output control, data storage and processing, display processing, system control,

communication management, printing management and alarming, etc.

The main board comprises the CPU board and mother board. The following diagram shows

interfaces to other components.

2-7

The CPU board is an essential CPU system containing the CPU, FLASH, memory, realtime

clock, EEPROM, etc. It interfaces to the mother board only, which then provides interfaces to

all other external devices.

The mother board is in charge of connections and communications with other components

and provides the following interfaces:

 LCD port: connects a built-in display.  Video output+network+IO+IIC: connects the digital video interface board.  USB×2+UART: connects the USB interface board.  Button board port: connects the button board.  Integral module rack port: connects integral module rack communication board.  Fan port: connects the fan.

2-8

 Speaker port: connects the speaker.  Power module port: connects the power module.  CIS port: located at the back of the mother board for connecting the CIS components.  CF port: connects the CF card assembly.  Recorder port: connects the recorder.  Internal wireless network card port: connects the internal wireless network card

Integral Module Rack

The patient monitor has two kinds of integral module rack: 2-slot and 5-slot. The control

board includes a NIOS II FPGA. It implements protocol conversion and infrared

communication between the main unit and the parameter modules.

The module rack communication board can be a 2-slot type or a 3-slot type. The 3-slot

communication board communicates the main board directly. The 2-slot communication

board is connected with and is controlled by the 3-slot communication board. The 3-slot

communication board has the function of communication control. The 2-slot communication

board consists of the infrared circuit and module power circuit. The RS422 drive circuit is

located on the 3-slot communication board.

2.3.4 Power Management System

Battery

The patient monitor uses two chargeable lithium-ion batteries (11.1 V, 4500 mAh). The

battery compartment door is located at the bottom of the patient monitor. The battery power

is introduced to the power module via the battery interface board, and then processed and

distributed to each component by the power module.

NOTE

z Two batteries must be used simultaneously when the patient monitor operates on

battery power. Otherwise, it may cause power supply protection.

Battery Interface Board

The battery interface board connects batteries to the power module, enabling charging and

discharging between the batteries and the power board.

2-9

Power Module

The power module is located at the back of the patient monitor. The main part of the power

module is the power board, which contains 4 PCBs: charging & power management board,

voltage drop DC inverter, voltage rise and drop DC inverter, and voltage drop 5 V CIS power

board.

The power module transforms the input power into DC and then forwards them to each

component of the patient monitor. The input power comes from either the batteries or an AC

source. The patient monitor will run power from the AC source whenever an AC source is

available. If the AC source becomes unavailable, the patient monitor will automatically

switch to the battery power. This does not affect the monitor’s operating status.

Power module has an AC input socket at its backside, and a socket at its front provides 4

connections to the batteries, main board, CIS components and USB interface board

respectively. The power module protects itself and the patient monitor by switching off AC

input or DC output in case of overcurrent, short circuit and overvoltage.The power module

provides 4 DC outputs:

Outputs Description

+3.3 V

+5.0 V

+5.0 V CIS Goes to the CIS assembly.

+12 V

The systematic principle diagram of the power module is as follows:

Goes to the LCD, mother board, CPU board, DVI interface board and

integral module rack.

Goes to the DVI interface board, recorder, CF storage card board and

USB interface board.

Goes to the recorder, LCD inverter, integral module rack, parameter

modules and USB interface board.

2-10

The following diagram shows the pins of the power module socket (excluding the pins of the

battery power socket. On power board, pin 1 has a triangle symbol):

Pin ID Marking Description Cable

color

2, 4, 6, 7,

13, 15, 17

GND The output grounding terminal of the power board. Black

8 RXD Receives serial communications (the main board sends). Purple

9 TXD Sends serial communications (the main board receives). Brown

Power on/off control signal. It is a TTL pulse signal

inputted from the back board. Every time when the power

10 PCON

on/off switch is pressed (pulse of falling edge), a switch

between power “on” and “off” happens. The pulse

Blue

duration is no less than 0.1 s for power-on and no less

than 2 s for power off.

Backlight on/off control signal. The main board sends a

backlight on/off control signal to the power board through

11 LCD-EN

the serial interface. The power board processes the

Green

received signal and then outputs a high or low level

depending on the received signal.

12, 1 12 V

14, 3 5 V CIS

The positive end of the 12 V DC coming from the power

board.

The positive end of the 5 V CIS coming from the power

board.

Ye ll o w

Purple

16, 5 5 V

18, 19 3.3 V

The positive end of the 5 V DC coming from the power

board.

The positive end of the 3.3 V DC coming from the power

board.

Red

Orange

20 LED- AC AC power status indication signal White

21 LED- BAT Battery status indication signal. Grey

22 LCD-BR Backlight brightness control voltage. Brown

2-11

2.3.5 Equipment Interface System

USB Interface Board

The USB interface board is compatible with such USB interfaces as USB2.0, USB1.1 and

USB1.0. It is connected with the main board and the power module. It receives two USB

differential signals coming from the main board and then distributes them to ten USB

interfaces via two ISP1521 chips. The UART signal output by the main board is converted

into RS422 signal by the USB interface board. The USB interface board receives 5 VDC and

12 VDC inputs from the power module, of which the 5 VDC goes to the USB interface board

and the 12 VDC outputted to the SMR connector through a fuse.

2-12

DVI Interface Board

The DVI interface board is connected with the mother board and the CIS mother board. The

following diagram shows its interfaces to other components.

Interface Description

CIS Connector Connects the CIS mother board.

BNC connector Outputs nurse call signals.

Micro-D connector Outputs analog signals and defibrillator synchronization signals.

RJ 45 connector

(network)

RJ 45 connector (CIS) It is a standard RJ45 connector for connecting a CIS network.

DVI-D connector Connects a secondary display.

It is a standard RJ45 connector, providing 10/100 BASE-TX Ethernet

communications channels. It connects an Ethernet network or a PC.

CF Card assembly

The CF assembly serves the non-volatile CF storage card which is used for data storage and

transfer. It is connected with the mother board.

Internal wireless network card

The internal wireless network card connects with the mother board. User can set network

type as LAN or WLAN through user interface and can set the internal wireless network card

through PC.

2-13

2.4 Parameter Module

Each parameter module consists of the module infrared communication board, module power

board, module button board, parameter board, etc.

2.4.1 Module Infrared Communication Board

The module infrared communication board allows a short delay when powering up the

module and adopts FPGA to enable infrared communications between the module and the

module rack. An ID is integrated into the module infrared communication board. When a

module is inserted in the module rack, the ID is automatically sent to the module rack.

2.4.2 Module Power Board

Some modules have no power board. There are two kinds of module power board:

1. Isolated power board: converts the 12 V DC into a 12 V isolated DC and a 5 V isolated

DC.

2. Non-isolated power board: converts the 12 V DC into a 5 V DC.

2.4.3 Parameter Board

The parameter board is a parameter measurement component, which is the most important

component of the parameter module.

2-14

2.5 Satellite Module Rack

The satellite module rack (SMR) is independent of the patient monitor, provides 8 slots for

mounting parameter modules. It has the following features:

 It allows a parameter module to be plugged and unplugged with the patient monitor on.

This allows function extension and patient transfer.

 It does not have its own power. It introduces 12 V DC from the patient monitor and then

supplies power to each parameter module via the contact screw.

 It accomplishes communications protocol conversions between the patient monitor and

each parameter module, provides infrared communications for parameter modules, and

is responsible for detecting infrared communications malfunction for each parameter

module.

The following diagram shows the structure of the SMR.

2-15

FOR YOUR NOTES

2-16

3 Testing and Maintenance

3.1 Introduction

To ensure the patient monitor always functions normally, qualified service personnel should

perform regular inspection, maintenance and test. This chapter provides a checklist of the

testing procedures for the patient monitor with recommended test equipment and frequency.

The service personnel should perform the testing and maintenance procedures as required and

use appropriate test equipment.

The testing procedures provided in this chapter are intended to verify that the patient monitor

meets the performance specifications. If the patient monitor or a module fails to perform as

specified in any test, repairs or replacement must be done to correct the problem. If the

problem persists, contact our Customer Service Department.

CAUTION

z All tests should be performed by qualified service personnel only. z Care should be taken to change the settings in [User Maintenance] and [Factory

Maintenance] menus to avoid loss of data.

z Service personnel should acquaint themselves with the test tools and make sure

that test tools and cables are applicable.

3.1.1 Test Equipment

See the following sections.

3-1

3.1.2 Test Report

Upon completion of the tests, the table of preventative maintenance test reports and the table

of maintenance test reports in this chapter should be kept properly.

3.1.3 Preventative Maintenance

Below are preventative maintenance tests which need to be performed on the monitor. See

the following sections for detailed maintenance procedures.

 Visual inspection  NIBP test and calibration  Microsteam and Sidestram CO  AG test and calibration

test and calibration

3.1.4 Recommended Frequency

Check/Maintenance Item Frequency

Preventative Maintenance Tests

Visual inspection 1. When first installed or reinstalled.

NIBP test

Sidestream and

Microstream

tests

AG tests

Pressure check

Leakage test

Calibration

Leakage test

Performance test

Calibration

Leakage test

Performance test

Calibration

1. If the user suspects that the measurement is

incorrect.

2. Following any repairs or replacement of relevant

module.

3.At least once a year is recommended.

Performance Tests

calibration

Resp

performance test

Performance test ECG test and

Calibration

1. If the user suspects that the measurement is

incorrect.

2. Following any repairs or replacement of relevant

module.

3. At least once every two years.

3-2

SpO2 test /

NIBP test and

calibration

Temp test /

calibration

C.O. test /

Mainstream

test and

calibration

Sidestream and

Microstream

tests and

calibration

Pressure check

Leakage test

Calibration

Performance test IBP test and

Pressure calibration

Leakage test

Performance test

Calibration

Note: At least once a year is recommended for NIBP,

and AG.

AG tests

Leakage test

Performance test

Calibration

ICG test /

BIS test /

RM test /

CCO/SvO2 test

Interconnecting

function

Output calibration

Nurse call relay

performance test

Analog output

performance test

Electrical Safety Tests

If the user suspects that the nurse call or analog output

does not work well.

3-3

Electrical

safety tests

Other Tests

Power on test

Touchscreen

calibration

Recorder check / Following any repair or replacement of the recorder.

Network print test /

Battery check

Refer to A Electrical

Safety Inspection.

Functionality

test

Performance

test

1. Following any repair or replacement

2. After the monitor drops.

3. At least once every two years.

1. When first installed or reinstalled.

2. Following any maintenance or the replacement of

any main unit parts.

1. When the touchscreen appears abnormal.

2. After the touchscreen is replaced.

1. When first installed.

2. Whenever the printer is serviced or replaced.

1. When first installed.

2. Whenever a battery is replaced.

Once a year or if the battery run time reduced

significantly.

3.2 Preventative Maintenance Procedures

3.2.1 Visual Inspection

Inspect the equipment for obvious signs of damage. The test is passed if the equipment has no

obvious signs of damage. Follow these guidelines when inspecting the equipment:

 Carefully inspect the case, display screen, buttons and knob for obvious signs of

damage.

 Inspect the SMR and parameter modules for obvious signs of damage.  Inspect the power cord, wall-mount bracket and module accessories for obvious signs of

damage

 Inspect all external connections for loose connectors, bent pins or frayed cables.  Inspect all connectors on the equipment for loose connectors or bent pins.  Make sure that safety labels and data plates on the equipment are clearly legible.

3-4

3.2.2 NIBP Tests and Calibration

NIBP Accur acy Test

Tools required:

 T-shape connector  Appropriate tubing  Balloon pump  Rigid Vessel with volume 500 ± 25 ml  Reference manometer (calibrated with accuracy equal to or better than 0.75 mmHg)

Follow this procedure to perform the test:

1. Connect the equipment as shown below.

Monitor

Tubing

Connector for NIBP cuff

Balloon pump

2. Before inflation, check that the reading of the manometer should be 0. If not, turn off the

balloon pump to let the whole airway open to the atmosphere. Turn on the balloon pump

after the reading is 0.

3. Select [Main Menu]→ [Maintenance >>]→ [NIBP Accuracy Test].

4. Check the manometer values and the monitor values. Both should be 0mmHg.

5. Raise the pressure in the rigid vessel to 50 mmHg with the balloon pump. Then, wait for

10 seconds until the measured values become stable.

6. Compare the manometer values with the monitor values. The difference should be

within ±3 mmHg. If it is beyond ±3 mmHg, calibrate the monitor by referring to NIBP Calibration.

Manometer

Rigid vessel

7. Raise the pressure in the rigid vessel to 200 mmHg with the balloon pump. Then, wait

for 10 seconds until the measured values become stable and repeat step 6.

3-5

NOTE

z You can use an NIBP simulator to replace the balloon pump and the reference

manometer to perform the test.

z You can use an appropriate cylinder and a cuff instead of the rigid vessel.

NIBP Leakage Test

NOTE

z You should perform NIBP lea kage test before any other NIBP concerned test and

calibration.

Tools required:

 An air tubing  Metal container or vessel

Follow this procedure to perform the test:

1. Set [Patient Cat.] to [Adu].

2. Connect a rigid metal container or vessel with a capacity of 500 ml ± 5% to the NIBP

cuff connector of the monitor.

Monitor

Connector for

NIBP cuff

3. Select [Main Menu]→ [Maintenance>>]→ [NIBP Leakage Test]. The NIBP display shows [Leakage Testing…].

4. After about 20 seconds, the monitor will automatically deflate. This means the test is

completed.

If no message is displayed in the NIBP parameter area, it indicates that the system has no

leakage. If the message [NIBP Pneumatic Leak] is displayed, it indicates that the system

may have a leakage. In this case, check if all connections are good and the cuff and tubing

have no leakage. Perform the test again after making sure all connections are good and the

cuff and tubing have no leakage.

You can either perform a manual leakage test:

1. Perform procedures 1 to 4 in the NIBP Accuracy T est section.

Air tubing

Metal

vessel

3-6

2. Raise the pressure in the rigid vessel to 250 mmHg with the balloon pump. Then, wait

for 5 seconds to let the measured values becoming stable.

3. Record the current pressure value, and meanwhile use a time counter to count the time.

Then, record the pressure value after 60s.

4. Compare the two pressure values and make sure the difference should not be greater

than 6 mmHg.

NIBP Calibration

Tools required:

 T-shape connector  Approprating tubing  Balloon pump  Metal Vessel with volume 500 ± 25 ml  Reference manometer (calibrated with accuracy equal to or better than 0.75 mmHg)

Follow this procedure to perform a NIBP calibration:

1. Perform procedures 1 to 4 in the NIBP Accuracy Test section.

2. Select [Main Menu]→ [Maintenance >>]→ [Factory Maintenance >>]→ enter the

required password→ [Calibrate NIBP >>].

3. Set [NIBP Pressure] to 150 mmHg in the [NIBP Measurement Circuit]. Raise the

pump pressure to 150 mmHg. After the pressure value is stabilized, select the

[Calibrate] button to start a calibration.

5. Set patient category to [Adu/Ped] in the [Overpressure Protection Circuit], and raise

the pressure to 330 mmHg. After the pressure value is stabilized, select [Calibrate] to

start a calibration.

6. Set the patient category to [Neo] in the [Overpressure Protection Circuit], and raise

the pressure to 165 mmHg. After the pressure value is stabilized, select [Calibrate] to

start a calibration.

All calibration results are displayed in the [Calibrate NIBP] menu. If the calibration fails,

check the test system for leakage and perform another calibration.

3-7

3.2.3 Sidestream and Microstream CO2 Module Tests

Leakage test

Follow this procedure to perform the test:

1. Plug the module into the module rack.

2. Wait until CO

warmup is finished and then use your hand or other objects to

completely block the gas inlet of the module or watertrap. The sidestream and

microstream CO

 Sidestream: The alarm message [CO

modules will behave as follows:

after certain time. Block the gas inlet for another 30 s. If the alarm message does

not disappear, it indicates that the module does not leak.

 Microstream: The alarm message [CO

certain time. Block the gas inlet for another 30s. If alarm message [CO

Err] is shown, it indicates that the module does not leak.

Accuracy Test

Tools required:

 A steel gas cylinder with 6±0.05% CO  T-shape connector  Tubing

Follow this procedure to perform the test:

FilterLine Err] is displayed on the screen

Purging] is displayed on the screen after

FilterLine

and balance gas N2

1. Plug the module into the module rack.

2. Wait until the CO

module warmup is finished, and check the airway for leakage and

perform a leakage test as well to make sure the airway has no leakage.

3. Enter [User Maintenance]→ [Maintain CO

4. Connect the test system as follows:

Open to the air

Tubing

Relief valve

Gas cylinder

3-8

Purging]→ [Calibrate CO2>>].

Monitor

5. Open the relief valve to vent standard CO

and make sure that there is an excess gas

flow through the T-shape connector to air..

6. Check the realtime CO

value is within 6.0±0.3％ in the [Calibrate CO

] menu.

Calibration

Tools required:

 A steel gas cylinder with 6±0.05% CO  T-shape connector  Tubing

Follow this procedure to perform a calibration:

1. Make sure that the sidestream or microstream CO

started up.

2. Check the airway for leakage and perform a leakage test as well to make sure the airway

has no leakage.

3. Select [Main Menu]→ [Maintenance >>]→ [User Maintenance >>]→ enter the

required password→ [Maintain CO

and balance gas N2

module has been warmed up or

>>]→ [Calibrate CO2 >>].

4. In the [Calibrate CO

] menu, select [Zero].

5. After the zero calibration is finished successfully, connect the equipment as follows:

Open to the air

Tubing

Relief valve

T-shape connector

Monitor

Gas cylinder

6. Open the relief valve to vent standard CO2 and make sure that there is an excess gas

flow through the T-shape connector to air.

7. In the [Calibrate CO

8. In the [Calibrate CO

measured CO

module.

concentration becomes stable, select [Calibrate CO2] to calibrate the

] menu, enter the vented CO2 concentration in the [CO2] field.

] menu, the measured CO2 concentration is displayed. After the

If the calibration is finished successfully, the message [Calibration Completed!] is

displayed in the [Calibrate CO

] menu. If the calibration failed, the message [Calibration

Failed!] is displayed. In this case, perform another calibration.

3-9

3.2.4 AG Tests

Leakage Test

1. Plug the AG module into the module rack.

2. Wait for a minute until the AG module warmup is finished and then use your hand or

other objects to completely block the gas inlet of the AG module. An alarm message

[AC Airway Occluded] will be displayed.

3. Block the gas inlet for another 60 seconds. Then select [User Maintenance >>] →

[Maintain AG >>] → [Calibrate AG >>] and check that the current flow rate is less

than 10 ml/min. If the alarm message does not disappear, it indicates that the module

does not leak.

Accuracy Test

Tools required:

 Gas cylinder with a certain standard gas (such as 6 ± 0.05% CO

, Bal N2), or standard

gas mixture. Gas concentration should meet the following requirements : AA ≥ 1.5%,

≥ 1.5%, N2O ≥ 40%, O2 ≥ 40%, of which AA represents an anesthetic agent (Des,

Sev, Enf, Iso, or Hal). a/c ≤ 0.01 (a is the gas absolute concentration accuracy; c is the

gas concentration)

 T-shape connector  Appropriate tubing

1. Plug the AG module into the module rack.

2. Wait for at least 10 min and then perform a leakage test to make sure the airway has no

leakage.

3. Check if the fan inside the AG module works correctly.

4. Connect the test system as follows:

Open to the air

Tubing

Relief valve

Monitor

Gas cylinder

3-10

5. Adjust the relief valve and make sure the flowmeter reading is stable and within 10 and

50 L/min.

6. Check that the concentration of each composition meets the specification stated in the

Operator's Manual.

Calibration

Tools required:

 Gas cylinder with a certain standard gas (such as 6 ± 0.05% CO

, Bal N2), or standard

gas mixture. Gas concentration should meet the following requirements: AA ≥ 1.5%,

≥ 1.5%, N2O ≥ 40%, O2 ≥ 40%, of which AA represents an anesthetic agent (Des,

Sev, Enf, Iso, or Hal). a/c ≤ 0.01 (a is the gas absolute concentration accuracy; c is the

gas concentration)

 T-shape connector  Appropriate tubing

Follow this procedure to perform the pressure calibration:

1. Select [Main Menu]→ [Maintenance >>]→ [User Maintenance >>]→ enter the

required password→ [Calibrate AG >>] to access the [Calibrate AG] menu.

2. Check the airway and make sure that there are no occlusions or leaks.

 Vent the sampling tubing to the air and check if the [Current FlowRate] and [Set

FlowRate] are approximately the same. If the deviation is great, it indicates that

there is an occlusion in the tubing. Check the tubing for an occlusion.

 Check the airway and make sure that the airway has no leakage.

3. Connect the test system as follows:

Relief valve

Flowmeter

Cylinder

Sampling line

T-shape connector

3-11

Monitor

4. Open the relief valve and vent a certain standard gas or gas mixture. Then adjust the

relief valve and make sure the flowmeter reading is stable and within 10 and 50 L/min.

5. In the [Calibrate AG] menu, the concentration and flowrate of each measured gas are

displayed.

 If the difference between the measured gas concentration and the actual one is t

very small, a calibration is not needed.

 If the difference is great, a calibration should be performed. Select [Calibrate >>]

to enter the calibrate menu.

6. Enter the vented gas concentration. If you use only one gas for calibration, set other

gases’ concentration to 0.

7. Select [Start] to start calibration.

8. If the calibration is finished successfully, the message [Calibration Completed!] is

displayed. If the calibration failed, the message [Calibration Failed!] is displayed. In

this case, perform another calibration.

CAUTION

z Calibrate the O

module, If it has been transported for long distance.

3.2.5 Preventative maintenance test report

Customer name

Customer address

Servicing person

Servicing company

3-12

Equipment under test

(EUT)

Model of EUT

SN of EUT

Hardware version

Software version

Test equipment Model/No. Effective date of calibration

Test items Test records Test

results(Yes/No)

Visual inspection

The case, display screen, buttons, knob, SMR, modules, power

cord, wall-mount bracket and accessories have no obvious signs

of damage.

The external connecting cables are not frayed and the connector

pins are not loose and bent.

The external connectors are not loose or their pins are not bent.

The safety labels and data plate are clearly legible.

NIBP test

The difference is within ±3 mm when 0, 50 or 200 mmHg is set

for NIBP accuracy test.

There is no leakage with NIBP, or the manual leakage test result

does not exceed 6mmHg/min.

Sidestream CO2 test

Block the gas inlet of the module or watertrap. The sidestream

flowrate is slower than 10ml/min and an alarm of CO2

Ye s No

Filterline Err is given. It indicates that there is no leakage.

The displayed CO2 value is within 6±0.05％.

Ye s No

Microstream CO2 test

Block the gas inlet of the module or watertrap. An alarm of CO2

Filterline Err is given. It indicates that there is no leakage.

3-13

Ye s No

The displayed CO2 value is within 6±0.05％.

AG test

When AG flowrate is slower than 10ml/min, an alarm of AG

Airway Occluded is given. It indicates that there is no leakage.

The fan inside the AG module works properly.

The measurement accuracy of CO2, N2O, O2 and AA (AA

represents an anaesthetic agent) meets the product specifications

in the Operator’s Manual.

Ye s No

3.3 Power On Test

This test is to verify that the patient monitor can power up correctly. The test is passed if the

patient monitor starts up by following this procedure:

1. Insert two batteries in the battery chamber and connect the patient monitor to the AC

mains, the AC mains LED and battery LED light.

2. Press the power on/off switch to switch on the patient monitor. The operating status

LED lights up, and the technical and physiological alarm lamps light blue and red

respectively.

3. After the start-up screens are displayed, the system sounds a beep indicating the self test

on alarm sounds is passed. At the same time, the alarm lamp turns from yellow to red,

and then turns off together with the technical alarm lamp. This indicates that the self test

on alarm lamps is passed.

4. The patient monitor enters the main screen and start-up is finished.

3-14

3.4 Module Performance Tests

3.4.1 ECG Tests and Calibration

ECG Performance Test

Tool required:

 Fluke Medsim 300B patient simulator recommended

Follow this procedure to perform the test:

1. Connect the patient simulator with the ECG module using an ECG cable.

2. Set the patient simulator as follows: ECG sinus rhythm, HR=80 bpm with the amplitude

as 1mV.

3. Check the ECG waves are displayed correctly without noise and the displayed HR value

is within 80 ± 1 bpm.

4. Disconnect each of the leads in turn and observe the corresponding lead off message

displayed on the screen.

5. Set that the simulator outputs paced signals and set [Paced] to [Yes] on the monitor.

Check the pace pulse marks on the monitor screen.

ECG Calibration

Tool required:

 Vernier caliper

Follow this procedure to perform a calibration:

1. Select the ECG parameter window or waveform area→ [Filter]→ [Diagnostic].

2. Select [Main Menu]→ [Maintenance>>].

3. Select [Calibrate ECG]. A square wave appears on the screen and the message [ECG

Calibrating] is displayed.

4. Compare the amplitude of the square wave with the wave scale. The difference should

be within 5%.

5. After completing the calibration, select [Stop Calibrating ECG].

3-15

3.4.2 Resp Performance Test

Tool required:

 Fluke Medsim 300B patient simulator recommended

Follow this procedure to perform the test:

1. Connect the patient simulator to the module using a non ESU-proof cable and set lead II

as the respiration lead.

2. Configure the simulator as follows: lead II as the respiration lead, base impedance line

as 1500 Ω; delta impedance as 0.5 Ω, respiration rate as 40 rpm.

3. Check the Resp wave is displayed without any distortion and the displayed Resp value is

within 40 ± 2 rpm.

3.4.3 SpO2 Test

Tool Required:

 None.

Follow this procedure to perform the test:

1. Connect SpO

and [PR Source] to SpO

2. Apply the Measure SpO

sensor to the SpO2 connector of the monitor. Set [Patient Cat.] to [Adu]

on the monitor.

sensor to on your ring finger. (Assume that you stay healthy)

3. Check the Pleth wave and PR reading on the screen and make sure that the displayed

is within 95% and 100%.

SpO

4. Remove the SpO

sensor from your finger and make sure that an alarm of SpO2 Sensor

Off is triggered.

NOTE

z A functional tester cannot be used to assess the accuracy of a pulse oximeter

monitor. However, it can be used to demonstrate that a particular pulse oximeter

monitor reproduces a calibration curve that has been independently demonstrated

to fulfill a particular accuracy specification.

3.4.4 NIBP Tests

Refer to 3.2.2 NIBP Tests and Calibration.

3-16

3.4.5 Temp Test

Tool required:

 Resistance box (with accuracy above 0.1Ω)

Follow this procedure to perform the test:

1. Connect the two pins of any Temp connector of a module to the two ends of the

resistance box using 2 wires.

2. Set the resistance box to 1354.9Ω (corresponding temperature is 37ºC).

3. Verify that the displayed value is within 37 ± 0.1ºC.

4. Repeat steps 1 to 3 and verify another temperature channel.

3.4.6 IBP Tests

IBP Performance Test

Tool required:

 Medsim300B patient simulator, MPS450, or other equivalent device  Dedicated IBP adapter cable for test (P/N 009-002199-00 for Medsim 300B, P/N

009-002198-00 for MPS450)

Follow this procedure to perform the test:

1. Connect the patient simulator with the pressure module.

2. Make the patient simulator outputs 0 to an IBP channel.

3. Press the Zero Key on the module to make a zero calibration.

4. Configure the patient simulator as P (static) = 200 mmHg.

5. The displayed value should be within 200 ± 4 mmHg.

6. If the error is beyond ±4 mmHg, calibrate the pressure module. If the IBP module was

calibrated with a dedicated reusable IBP sensor, check the calibration together with this

IBP sensor.

7. Make the patient simulator output 120/80 mmHg ART signal and 120/0 mmHg LV

signal to the IBP channel and check that the IBP wave is displayed correctly.

8 Repeat the steps above for all the IBP channels.

3-17

IBP Pressure Calibration Method 1

Tools required:

 Medsim300B patient simulator, MPS450, or other equivalent device

IBP adapter cable for test (P/N 009-002199-00 for Medsim 300B, P/N 009-002198-00 for

MPS450)

Follow this procedure to perform the test:

1. Connect the patient simulator to the pressure connector on the module.

2. Set the patient simulator to 0 for the desired IBP channel.

3. Press the Zero Key on the module to make a zero calibration.

4. Configure the patient simulator as P (static) = 200 mmHg.

5. Select [Main Menu]→ [Maintenance >>]→[User Maintenance >>]→[Cal. IBP

Press. >>]. In the [Cal. IBP Press.] menu, set the calibration value to 200 mmHg.

6. Select the [Calibrate] button next to the desired IBP channel to start a calibration.

7. If the calibration is completed successfully, the message [Calibration Completed!] will

be displayed. Otherwise, a corresponding message will be displayed.

Method 2

Tools required:

 Standard sphygmomanometer  Balloon pump  Tubing  T-shape connector

To perform a calibration:

1. Connect the 3-way stopcock, the sphygmomanometer and the balloon pump through a

T-shape connector, as shown below.

2. Vent the transducer to the atmospheric pressure by turning on the 3-way stopcock to the

air. Zero the transducer, and then open the stopcock to the sphygmomanometer.

3. Select [Main Menu]→[Maintenance >>]→[User Maintenance >>]→enter the

required password → [Cal. IBP Press. >>] In the [Cal. IBP Press.] menu, set the

calibration value to 200 mmHg.

4. Inflate using the balloon pump until the reading of sphygmomanometer approximates

the preset calibration value.

3-18

Pressure transduce

3-way stopcoc

T-shape connector

Sphygmomanometer

5. Adjust the calibration value in the [Maintain IBP] menu until it is equal to the reading

of sphygmomanometer

6. Select the [Calibrate] button to start a calibration

7. The message [Calibration Completed!] is displayed after a successful calibration. If

the calibration failed, the prompt [Calibration Failed!] will be displayed.

Pressure adapter cable

IBP Module

3.4.7 C.O. Test

Tools required:

 Medsim300B Patient simulator, or MPS450, or equivalent equipment  C.O. adapter box (CI-3 module/cable, P/N: 3010-0289 for 300B, P/N: 5180500 for

MPS450)

 C.O. trunk cable (PN: 0010-21-42716)

Follow this procedure to perform the test:

1. Connect the patient simulator and the C.O. module using a C.O. trunk cable and a C.O.

adapter box.

2. Set the blood temperature (BT) to 37ºC on the patient simulator and check the

temperature value displayed on the monitor is 37 ± 0.2ºC.

3. On the patient monitor, set [Auto IT] to [Off], [IT] to 2ºC, and [Comp. Const.] to

0.595 in the [C.O. Setup] menu. Select [C.O. Measure] to enter the C.O. measurement

window.

4. Select [Start] in the C.O. measurement window to start C.O. measurements.

5. On the patient simulator, set C.O. to 5L/min and wait for 3 to 10 seconds.

6. Verify that the C.O. value displayed on the monitor is 5±0.25L/min.

3-19

3.4.8 Mainstream CO2 Tests NOTE

z Select [Main Menu]→[Maintenance >>]→ [User Maintenance >>]→enter the

required password→[Maintain CO

Pressure] is correct before performing mainstream CO

Tools required:

], make sure that the setting of [Barometric

tests.

 A steel gas cylinder with 6±0.05% CO  A steel gas cylinder with compressed air or N

(with standard concentration)

 Two 3-way valves (power supply controlled)  Flowmeter  Power supply  Tube

Follow this procedure to perform the test:

1. Wait until CO

warmup is finished and then select [Start Zero Cal.]from [CO2 Setup]

menu to start a zero calibration. If the zero calibration fails, the prompt message [CO

Zero Failed] is displayed. Otherwise, the baseline of waveform recovers to zero.

2 Set [Apnea Delay] to 10 s in the [Adjust CO

3 Blow to the CO

Check if the alarm message [CO

sensor to generate a CO2 waveform and then place the sensor in the air.

Apnea] is displayed on the screen.

Limits] menu.

4 Connect the test system as follows

3-20

In the figure above,

1 A steel gas cylinder with 6±0.05% CO

2 Flowmeter

3 3-way valve (power supply controlled)

4 Open to air

5 Power supply (controlling two 3-way valves)

6 Compressed air or N

7 Mainstream CO

with standard concentration

sensor

8 Patient monitor

9 Tube (preventing back flow)

5 Adjust the power supply and turn on/off 3-way valves to ensure that that only one

cylinder is connected to the Mainstream CO

sensor via the 3-way valves at one time

and the flowmeter reading is stable and within 2 and 5L/min.

6 Switch between the two cylinders to connect Mainstream CO

to 10s and check if the displayed CO

value is within 6.0±0.3％.

sensor at an intervals of 6

3.4.9 Sidestream and Microstream CO2 Module Tests

See section 3.2.3 Sidestream and Microstream CO2 Module Tests.

3.4.10 AG Tests

See section 3.2.4 AG Tests.

3-21

3.4.11 ICG Test

Tool required:

 ICG simulator (BZ-4575)  BioZ Dx patient cable (PN: 040-000543-00）  BioZ Dx lead wire (PN: 040-000544-00)

1. Connect the ICG simulator and the patient monitor using ICG patient cable and lead

wire.

2. Select [ICG setup]→ [Patient Demographics >>] and then input parameter values as

follows:

Height 180 cm CVP 6 mmHg

Weight 75 kg PAmean 8 mmHg

PAWP 10 mmHg

3. Switch on the simulator and set as follows: HR=60±1 bpm, VI=61±4/1000s,

TFC=32±2/kOhms. Then, start ICG monitoring.

4. After the measurement becomes stable and check that the measured results are as

follows: HR=60±2 bpm, VI=61±4/1000s, TFC=32±2/kOhms.

5. Set on the simulator as follows: HR=70±1 bpm, VI=48±4 /1000s, TFC=32±2 / kOhms,

and then start ICG monitoring. After the measurement becomes stable and check that the

measured results are as follows: HR=70±2 bpm, VI=48±4 /1000s, TFC=32±2 / kOhms.

3.4.12 BIS Test

You can choose either of the following methods to perform the test:

Method 1:

Tools required:

 BIS cable (PN: 6800-30-50761）  BIS sensor (PN: 0010-10-42672)

1. Connect the BIS sensor to a healthy, wide-awake adult as directed in the Operator’s

Manual.

2. Check the EEG wave and BIS numerics displayed on the screen and make sure the BIS

value is within 80-100.

3-22

Method 2:

Tools required:

 BIS simulator (with flexible cable)  BIS cable (PN: 6800-30-50761）

1. Connect the BIS sensor with the BIS simulator and select [BIS Setup]→ [BIS Sensor

Check] to perform a cyclic impedance check.

2. After the cyclic impedance check is finished, check that the result for each electrode is

pass.

3. Check the EEG wave and BIS numeric displayed on the screen.

3.4.13 RM Test

Tool required:

 Gas source  Ventilator (calibrated)  Adult artificial lung (PN: 040-000744-00）  RM connector (PN: 6800-20-50328）  Adult/pediatric flow sensor (PN: 0010-30-42678)

Monitor

Ventilator

Flow sensor

Follow this procedure to perform the test:

1. Connect the equipment as shown above. Make sure that the blue sensing tube on the

flow sensor is connected with the artificial lung.

2. Set [Patient Cat.] to [Adu]. In the [RM Setup] menu, select [Sensor Type] according

to the used sensor and set [Ventilation Mode] to [Mechanical].

Artificial lung

3. Enter the [RM Setup] menu and select [Calibrate >>]. Input the constant marked on

the sensor and calibrate the flow sensor.

4. Configure the ventilator as follows: TV=500 ml, RR =20 rpm, I:E=1:2.

5. Select [Respiratory Loop] in the [RM Setup] menu. Verify that the displayed TV is

within 500±50ml and RR is within 20±1rpm.

3-23

3.4.14 CCO/SvO2 Tests

Interconnecting Function

Tools required:

 CCO/SvO

cable (PN: 115-004083-00)

1. Connect and set the patient monitor and Vigilance monitor per the procedures in the

Operator’s Manual.

2. Set the Vigilance monitor to Demo mode.

3. Check that the CCO/SvO

numerics displayed on the patient monitor and Vigilance

monitor are consistent.

Output Performance

Tools required:

 Oscillograph (Recommanded model: Agilent DSO5052A)  CCO/SvO

1. Connect the signal output end of the connecting cables of the CCO/SvO

oscillograph.

2. Make the monitor to perform an ECG calibration. Check that the ECG waves displayed

on the oscillograph are consistent with the ECG calibration waves displayed on the

monitor screen.

cable (PN: 115-004083-00)

module to the

3. Select [CCO Setup]→ [Signal Output Setup >>] and then select [Simulated High

Value] from the pop-up menu. Check that the amplitude of electrical level at the signal

output port of MAP, CVP and SpO

are 5±0.25V, 5±0.25V and 10±0.5V respectively.

3-24

3.5 Nurse Call Relay Performance Test

Tools required:

 Oscilloscope

1. Connect the nurse call cable to the Nurse Call Connector of the patient monitor.

2. Enter [Demo] mode. Then, select [Main Menu]→ [Maintenance >>]→ [User

Maintenance >>]→ enter the required password→ [Others >>].

3. In the [Others >>] menu, select [Nurse Call Setup >>] and then in the [Nurse Call

Setup] menu, select all optional [Alm Lev] and [Alm Cat.], and set [Contact Type] to

[Normally Open]

4. In [Nurse Call Setup >>] menu, set [Signal Type] to [Pulse]. Make the monitor to

generate an alarm and check that the oscillograph displays positive pulses of 1s width

when there is an alarm.

5. In [Nurse Call Setup >>] setup menu, set [Signal Type] to [Continuous].Make the

monitor to generate an alarm and check that the oscillograph outputs continuous high

level when there is an alarm.

3.6 Analog Output Performance Test

Tool required:

 Medsim300B patient simulator, or MPS450, or equivalent equipments  Oscillograph

Connect the patient simulator to the monitor using an ECG or IBP cable and connect the

oscillograph to the Auxiliary Output Connector of the patient monitor. Verify that the waves

displayed on the oscillograph are identical with those displayed on the monitor.

3-25

3.7 Electrical Safety Test

See A Electrical Safety Inspection for electrical safety tests.

3.8 Touchscreen Calibration

Tools required:

 None.

1. Select the [Cal. Screen] QuickKey or select [Main Menu]→ [Maintenance >>]→

[User Maintenance >>]→ enter the required password→ [Cal. Touchscreen].

2. The

3. Select, in turn, the central point of the

4. After the calibration is completed, the message [Screen Calibration Completed!] is

displayed. Select [Ok] to confirm the completion of the calibration.

symbol will appear at different positions of the screen.

symbol.

3.9 Recorder Check

Tools required:

 None.

1. Print ECG waveforms. The recorder should print correctly and the printout should be

clear.

2. Set the recorder to some problems such as out of paper, etc. the patient monitor should

give corresponding prompt messages. After the problem is removed, the recorder should

be able to work correctly.

3. Switch automatic alarm recording for each parameter ON and then set each parameter’s

limit outside set alarm limits. Corresponding alarm recordings should be triggered when

parameter alarms occur.

3-26

3.10 Network Print Test

Note

z HP LaserJet 1505n or 2035n laser printer is recommended for BeneView series of

patient monitors.

Tools required:

 Hub and network cable

3.10.1 Equipment Connection and Setup

1 Connect the patient monitor and network printer to a HUB using common network

cables as follows:

BeneView

monitor

Cable Cable

HUB

2 Set IP address as follows: Select [Main Menu]→ [Maintenance >>]→ [User

Maintenance >>]→ enter the required password→ [IP Address Setup >>] and set the

IP address of the patient monitor in the same network segment with that of the network

printer. (See the instructions for use accompanying the printer)

3 Search for printer by selecting [Main Menu]→ [Print Setup >>]→ [Printer Setup

>>]→ [Search Printer]. After a while, the printer’s model and IP address will appear in

the box beside [Printer].

Network

printer

3.10.2 Print Function Test

1 Enter the Demo mode of the patient monitor.

2 Select [Main Menu]→ [Print Setup >>]→ [Realtime Reports >>]→ [Normal Report]

and then select [Print]. The network printer shall print out the report correctly.

3-27

3.11 Battery Check

Tools required:

 None.

Function Test

1. If the patient monitor is installed with batteries, remove the batteries first.

2. Verify that the patient monitor works correctly when running powered form an AC

source.

3. Insert two batteries per the procedures provided in the Operator’s Manual.

4. Remove the AC power cord and verify that the patient monitor still works correctly.

5. For T5 only: Remove one battery and verify that the patient monitor continues to work

correctly. Verify that the patient monitor can also work independently from another

battery.

Performance Test

Perform the test by referring to the Battery chapter in the Operator’s Manual and verify the

operating time of the battery meets the product specification.

3-28

3.12 Factory Maintenance

3.12.1 Accessing Factory Maintenance Menu

To access the factory maintenance menu, select [Main Menu]→ [Maintenance >>] →

[Factory Maintenance]and then enter the required password.

The [Factory Maintenance] menu is shown below.

3.12.2 Drawing Waves

There are two methods to draw waves.

 Color: selecting Color will have smoother waveforms.  Mono: selecting Mono will have a wider viewing angle.

3.12.3 Recorder

To enable/disable the recorder, select [Recorder] and toggle between [On] and [Off].

CAUTION

z The recorder is disabled if [Recorder] is switched off in the [Factory Maintenance]

menu.

3-29

3.12.4 Software Version

Selecting [Software Version] will show software version information. The [Software

Ve rs io n] menu is as follows:

3-30

3.12.5 Monitor Information

Selecting [Monitor Information] will show the status of the patient monitor. Monitor

information is displayed as follows:

3.12.6 Calibrate NIBP

For details, refer to section 3.2.2 NIBP Tests and Calibration.

3-31

Maintenance and Test Report

(See the above sections for detailed test procedures and contents)

Customer name

Customer address

Servicing person

Servicing company

Equipment under test (EUT)

Model of EUT

SN of EUT

Hardware version

Software version

Test equipment Model/No. Effective date of calibration

Test items Test records Test

results(Yes/No)

Visual inspection

The case, display screen, buttons, knob, SMR, modules, power

cord, wall-mount bracket and accessories have no obvious signs

of damage.

The external connecting cables are not frayed and the connector

pins are not loose and bent.

The external connectors are not loose or their pins are not bent. Yes No

The safety labels and data plate are clearly legible. Yes No

Power-on test

Yes N o

The power-on test is passed. The power indicator and alarm

system work correctly and the monitor start up properly.

Performance test

ECG performance test and calibration

3-32

Yes N o

ECG waves are displayed correctly without noise and the HR

Yes N o

value is within 80±1 bpm.

ECG Lead Off alarm behaves correctly. Yes No

Paced signals are detected and pace pulse marks are displayed

Yes N o

when [Paced] is set to [Ye s ]

The difference between the amplitude of the ECG calibration

Yes N o

square wave and that of the wave scale is not greater than 5%.

Resp test

The Resp wave is not distorted and the Resp value is within

Yes N o

40±2 rpm.

SpO2 test

Measure SpO2 on a healthy person’s finger and a Pleth wave and

PR value are displayed. The displayed SpO

value is within 95%

Yes N o

and 100%

NIBP test and calibration

The difference is within ±3 mm when 0, 50 or 200 mmHg is set

Yes N o

for NIBP accuracy test.

There is no leakage with NIBP, or the manual leakage test result

Yes N o

does not exceed 6mmHg/min.

Temp test

The value displayed for each Temp channel of the monitor is

Yes N o

within 37±0.1ºC.

IBP test

The static pressure value displayed for each IBP channel is

Yes N o

within 200±2 mmHg.

The ART and LV waves for each IBP channel are displayed

Yes N o

correctly.

C.O. test

The TB value displayed on the monitor is within 37±0.2ºC. Yes No

The displayed C.O. value is within 5±0.25L/min. Yes No

Mainstream CO2 test

The mainstream CO2 is zeroed successfully and the waveform

Yes N o

baseline recovers to zero.

CO2 Apnea alarm behaves correctly. Yes No

The displayed CO2 value is within 6.0±0.3％.

Sidestream CO2 test and calibration

Yes N o

3-33

Block the gas inlet of the module or watertrap. The sidestream

flowrate is slower than 10ml/min and an alarm of CO

Yes N o

Filterline Err is given. It indicates that there is no leakage.

The displayed CO2 value is within 6±0.05％.

Yes N o

Miscrostream CO2 test and calibration

Block the gas inlet of the module or watertrap. An alarm of CO2

Yes N o

Filterline Err is given. It indicates that there is no leakage.

The displayed CO2 value is within 6.0±0.3％

Yes N o

AG test and calibration

When AG flowrate is slower than 10ml/min, an alarm of AG

Yes N o

Airway Occluded is given. It indicates that there is no leakage.

The fan inside the AG module works properly. Yes No

The measurement accuracy of CO2, N2O, O2 and AA (AA

Yes N o

represents an anaesthetic agent) meets the product specifications

in the Operator’s Manual.

ICG test

The measured results are as follows: HR=60±2 bpm,

Yes N o

VI=61±4/1000s, TFC=32±2/kOhms.

The measured results are as follows: HR=70±2 bpm, VI=48±4

/1000s, TFC=32±2 / kOhms.

BIS test (you can select either method to perform the test)

Method 1: The BIS value measured on healthy, wide-awake

adult is within 80-100.

Method 2: Connect to the BIS simulator to perform a cyclic

impedance check. The EEG wave and BIS numeric are displayed

on the monitor.

RM test

The displayed TV is within 500±50ml and RR is within

20±1rpm.

CCO/SvO2 test

The CCO/SvO2 numerics displayed on the patient monitor and

Vigilance monitor are consistent.

The waves (at the ECG signal output port) displayed on the

oscillograph are consistent with the ECG calibration waves

displayed on the monitor screen.

Yes N o

The amplitude of electrical level at the signal output port of

MAP, CVP and SpO

are 5±0.25V, 5±0.25V and 10±0.5V

3-34

Yes N o

respectively.

Nurse call relay performance test

The relay contacts are close when an alarm occurs. Yes No

Analog output performance test

The waves displayed on the oscillograph are identical with those

Yes N o

displayed on the monitor.

Electrical safety tests

Refer to A Electrical Safety Inspection. All the electrical safety

tests should be passed.

Yes N o

Touchscreen calibration

The touchscreen is calibrated successfully. Yes No

Recorder check

The recorder can print ECG waves correctly and the printout is

Yes N o

clear.

Set the recorder to some problems such as out of paper, paper

Yes N o

jam, etc. the monitor gives corresponding prompt messages.

After the problem is removed, the recorder is able to work

correctly.

Automatic alarm recording for each parameter functions

Yes N o

correctly when parameter alarms occur.

Network print test

The network printer can print out ECG reports correctly. Yes No

Battery check

The monitor can operates correctly from battery power when an

Yes N o

AC power failure accidentally occurs.

T5 patient monitor can operate independently on a single battery. Yes No

The operating time of the battery meets the product

Yes N o

specification.

Test conclusion:

Tested by:

Test Date:

3-35

FOR YOUR NOTES

3-36

4 Troubleshooting

4.1 Introduction

In this chapter, patient monitor problems are listed along with possible causes and

recommended corrective actions. Refer to the tables to check the patient monitor, identify and

eliminate the troubles.

The troubles we list here are frequently arisen difficulties and the actions we recommend can

correct most problems, but not all of them. For more information on troubleshooting, contact

our Customer Service Department.

4.2 Part Replacement

Printed circuit boards (PCBs), major parts and components in the patient monitor are

replaceable. Once you isolate a PCB you suspect defective, follow the instructions in 5 Repair and Disassembly to replace the PCB with a known good one and check that the

trouble disappears or the patient monitor passes all performance tests. If the trouble remains,

exchange the replacement PCB with the original suspicious PCB and continue

troubleshooting as directed in this chapter. Defective PCB can be sent to us for repair.

To obtain information on replacement parts or order them, refer to 6 Parts .

4.3 Patient Monitor Status Check

Some troubleshooting tasks may require you to identify the hardware version and status of

your patient monitor.

1. To view the information on system start time, self check, etc., select [Main Menu]→

[Maintenance >>]→[Monitor Information >>].

2. You can also view the information on the monitor’s current status by selecting [Main

Menu]→[Maintenance>>]→[Factory Maintenance>>]→enter the required password →[Monitor Information >>].

4-1

4.4 Software Version Check

Some troubleshooting tasks may require you to identify the configuration and software

version of your patient monitor.

1. To view information on the system configuration and system software version, Select

[Main Menu]→[Maintenance>>]→[Software Version>>].

2. You can also view the information on system software version and module software

version by selecting [Main Menu]→[Maintenance>>]→[Factory Maintenance>>]→ enter the required password →[Software Version>>].

4.5 Technical Alarm Check

Before troubleshooting the patient monitor, check for technical alarm message. If an alarm

message is presented, eliminate the technical alarm first. For detailed information on

technical alarm message, possible cause and corrective action, refer to the patient monitor’s

Operation Manual.

4.6 Troubleshooting Guide

4.6.1 Power On/Off Failures

Symptoms Possible Cause Corrective Action

The patient

monitor fails to

start. AC LED

or battery LED

does not light

AC mains not connected

or battery too low

Power supply protection Refer to 4.6.9 Power Supply Failures .

Cables defective or

poorly connected

Power switch & LED

board defective

Power module defective Replace the power module.

Mother board Defective Replace the mother board.

Check that AC mains is properly connected or

battery capacity is sufficient.

1. Check that the cables from power switch & LED

board to button board, button board to main board,

and power module to main board are correctly

connected.

2. Check that cables and connectors are not

damaged.

Replace the power switch & LED board.

4-2

4.6.2 Display Failures

Symptoms Possible Cause Corrective Action

Integrated display

is blank but the

patient monitor

still works

correctly.

Secondary display

does not function.

Secondary display

displays snows or

flashing specks

Cables defective or

poorly connected.

Backlight board

defective

Power module defective Replace the power module.

Display defective Replace the display.

Cables defective or

poorly connected.

DVI interface board

defective

Cables defective or

poorly connected.

1. Check that cables from the display to the mother

board and from the backlight board to the button

board/display are correctly connected.

2. Check that the cables and connectors are not

damaged.

Replace the backlight board.

1. Check that the cable between the display and the

patient monitor is correctly connected.

2. Check that the cables and connectors are not

damaged.

Replace the DVI interface board.

1. Check that the cable between the display and the

patient monitor is correctly connected.

2. Check that the cables and connectors are not

damaged.

overlapped or

distorted

Touchscreen does

not response

DVI interface board

defective

The mother board is

damaged.

FPGA error. Update or upgrade FPGA. Images

Cables defective or

poorly connected.

Touchscreen disabled

Replace the DVI interface board.

Replace the mother board.

1. Check that the cable between the display and

mother board is correctly connected.

2. Check that the cables and connectors are not

damaged.

Check if there is a symbol

[Main Menu] QuickKey. If yes, press the [Main

Menu] QuickKey for more than 3s to enable the

touchscreen.

shown above the

4-3

Touch position

invalid

Cables defective or

poorly connected.

Touchscreen control

board defective

Button board defective. Replace the button board.

Touchscreen defective. Replace the touchscreen

Mother board defective Replace the mother board

Touchscreen not

calibrated

1. Check that the cables from the touchscreen to the

touchscreen control board, the touchscreen control

board to the button board, and the button board to

the mother board are correctly connected.

2. Check that the cables and connectors are properly

connected

Replace the touchscreen control board

Calibrate the touchscreen

4.6.3 Module Rack Failures

Symptoms Possible Cause Corrective Action

SMR

SMR cannot

identify

parameter

modules

Extension Cable

defective or poorly

connected

Defective parameter

module

Wrong communication

board software revision

Module (in some slots)

unrecognized

1. Check that the cable between SMR and main unit

is properly connected

2. Check that the connecting cables and connectors

are not damaged.

3. Check that contact screws on SMR are tightly

screwed and properly contact the SMR.

Replace the suspicious parameter module with a

known good module. Check if the patient monitor

identifies the replacement module. If yes, it means

that the original one is defective.

Upgrade the program of the module or SMR.

1. Replace the Nios II module.

2. Replace the 8-slot module rack communication

board.

4-4

Power supply failure 1. Check if the voltage between two contact screws

in any slot reaches 12V DC. If yes and the

parameter module functions, the PCB assembly in

SRM might fail.

2. If there is no 12 V sent to the SMR, check that

the power module output voltage to the USB

interface board reaches 12V. If yes, the fuse on the

USB interface board might blow. Replace the USB

interface board.

Cable defective or

poorly connected

Nios II module loose or

failure

SMR interface board

failure

SMR communication

board failure

USB interface board

failure

Mother board failure Replace the mother board.

Integral module rack

Integral module

Module failure Replace parameter module. If a new module is

rack cannot

identify

parameter

Cable defective or

poorly connected

modules

1. Check that the cable between SMR interface

board and communication board is properly

connected.

2. Check that connecting cables and connectors are

not damaged.

1. Check that Nios II module is correctly plug ed

2. If the symptom persists, replace the Nios II

module.

Replace the SMR interface board.

Replace the SMR communication board.

Replace the USB interface board.

identified, the original one is defective.

1. Check that the cables from 3-slot module rack

communication board to MPM module rack

communication board, module rack to mother board

are properly connected.

2. Check that connecting cables and connectors are

not damaged.

Wrong communication

board software revision

Module (in some slots)

unrecognized

Upgrade the program of the module or Integral

module rack.

Replace the corresponding module rack

communication board.

4-5

Power supply to integral

module rack abnormal

3-slot or MPM module

rack communication

board failure

Nios II module failure Replace the Nios II module.

Mother board failure Replace the mother board.

1. Check if voltage between two contact screws in

any slot reaches 12VDC. If yes and the parameter

module functions, PCB assembly in the SMR might

fail.

2. If there is no 12V sent to the integrated module

rack, check that power module output voltage to

mother board reaches 12V DC. If yes, mother board

might fail.

Replace the 3-slot or MPM module rack

communication board.

4.6.4 Alarm Problems

Symptoms Possible Cause Corrective Action

The alarm lamp

is not light or

extinguished

but alarm

sound is issued

Cable defective or

poorly connected

1. Check that cables from alarm LED board to

button board and button board to mother board are

properly connected.

2. Check that connecting cables and connectors are

not damaged.

No alarm

sound is issued

but alarm lamp

is light

Alarm LED board

failure

Button board failure Replace the button board.

Mother board failure Replace the mother board.

Audio alarm disabled

Cable defective or

poorly connected

FPGA audio logic error Upgrade the audio logic part of the FPGA program.

Speaker failure Replace the speaker.

Mother board failure Replace the mother board.

Replace the alarm LED board.

Select [Main Menu]→[Maintenance >>]→[User Maintenance >>]→enter the required password→

[Alarm Setup >>], and then in the popup menu, set

[Minimum Alarm Volume] to appropriate setting.

In the [Others] window of the [Alarm Setup]

menu, set [Alm Volume] to appropriate setting.

1. Check that cable between speaker and mother

board is properly connected.

2. Check that connecting cables and connectors are

not damaged.

4-6

4.6.5 Button and Knob Failures

Symptoms Possible Cause Corrective Action

Buttons do

not work

Knob does

not work

Cable defective or

poorly connected

Button board failure Replace button board.

Cable defective or

poorly connected

Knob failure Replace the knob encoder.

Button board failure Replace the button board

1. Check that cable between button board and mother

board is properly connected.

2. Check that connecting cables and connectors are not

damaged.

1. Check that cables from knob to button board, and button

board to mother board are properly connected

2. Check that connecting cables and connectors are

undamaged.

4.6.6 Recorder Failures

Symptoms Possible Cause Corrective Action

No printout

Recorder module

disabled

1. Check if the recorder status LED lights

2. If yes, enable the module in [Factory Maintenance]

menu. Otherwise, check for other possible causes.

Poor print

quality or

paper not

feeding

properly

Paper reversed Re-install the paper roll.

Cable defective or

poorly connected

Recorder power

supply failure

Recorder failure Replace the recorder.

Paper roll not

properly installed

Print head dirty 1. Check the thermal print head and the paper roller for

Print head failure Replace the print head.

Recorder failure Replace recorder.

1. Check that cable between recorder and mother board is

properly connected.

2. Check that connecting cables and connectors are not

damaged.

Check if the power module outputs 5 V DC and 12V DC

correctly.

Stop the recorder and re-install the paper roll.

foreign matter.

2. Clean the thermal print head with an appropriate clean

solution.

4-7

4.6.7 Interface Failures

Symptoms Possible Cause Corrective Action

No analog signals or

nurse call signals are

issued

Device with USB port

does not function

(Assume that the

peripheral devices are

good)

Respective output

disabled

DVI interface board

cable loose

DVI interface board

failure

Mother board failure Replace the mother board.

Cable defective or

poorly connected

USB interface board

failure

Mother board failure Replace the mother board.

1. Select [Main Menu]→[Analog Output Setup]→set [Analog Output] to [On].

1. Check that cable between DVI interface

board and mother board is properly

connected.

2. Check that connecting cables and

connectors are not damaged.

Replace the DVI interface board.

1. Check that cable between USB interface

board and mother board is properly

connected.

2. Check that connecting cables and

connectors are not damaged.

Replace the USB interface board.

4.6.8 CF Card Problems

Symptoms Possible Cause Corrective Action

CF card malfunctions

Wrong CF card or small

memory space

CF card full; data error;

CF card error

CF card failure Replace the CF card.

Cable defective or

poorly connected

CF card board failure Replace the CF card board.

Mother board failure Replace the mother board.

Use only SanDisk-manufactured CF storage

cards. Those with 4GB memory space are

recommended.

Format CF card on PC.

1. Check that the cable between CF card

board and mother board is correctly

connected.

2. Check that connecting cables and

connectors not damaged.

4-8

4.6.9 Power Supply Failures

Symptoms Possible Cause Corrective Action

Different battery

voltages

Battery capacity is too

low

Battery cannot be

recharged

Battery failure Replace battery.

Cable defective or

poorly connected

Power board failure Replace the power board.

Battery failure Replace battery.

Cable defective or

poorly connected

Power board failure Replace the power board.

Battery failure Replace battery and recharge the replacement

Cable defective or

poorly connected

1. Check that the cable between battery

interface board and power module is

correctly connected.

2. Check that cables and connectors are not

damaged.

1. Check that the cable is correctly

connected.

2. Check that connecting cables and

connectors are not damaged.

battery. If the replacement battery can be

recharged, the original one fails.

1. Check that cable between battery interface

board and power module is correctly

connected.

2. Check that cables and connectors are not

damaged.

No +3.3 V output

No +5.0 V output

No +5.0 V CIS output

No +12 V output

Power board failure Replace power board

Power supply protection

Power board failure

1. Turn off the monitor then restart it.

2. If the problem remains, disconnect the AC

mains for 5 s and reconnect it, then restart the

patient monitor.

3. If the problem still remains, replace power

board.

4-9

NOTE

z When the power module has a failure, it may cause problems to other components,

e.g. the monitor suddenly breaks down during start-up, as the power module may

have a power supply protection. In this case, troubleshoot the power module per

the procedure described in the table above.

z Components of the main unit, SMR and parameter modules are powered by the

power module. In the event that a component malfunctions, check if the operating

voltage is correct. Refer to 2 Theory of Operation for the operating voltage and

measurement points of each component.

4.6.10 Network Related Problems

Symptoms Possible Cause Corrective Action

The patient monitor

cannot be connected to

a CIS.

No connection to LAN 1. Check that the cables and connectors are in

good condition and that the network is

correctly connected.

2. Check that the hub or switch is correctly

configured.

CIS assembly failure 1. Restart the patient monitor, check that a

beep is heard and the CIS fan runs normally

after the system starts up.

2. After starting, select [Main Menu]→ [Maintenance>>]→[User Maintenance>>]

→ enter the password required. In the [User

Maintenance] menu, [CIS Maintenance]

shall be enabled and switching between

normal monitor screen and CIS screen is

possible.

3. If step 1 and 2 fail, check the CIS fan

assembly for damage and if the power supply

to the CIS assembly is correct. If both of

them work correctly, replace the CIS

assembly.

Frequent dropouts and

network disconnects

DVI interface board

failure

Incorrect LAN cable

connection

Replace DVI interface board.

Check LAN cable connection. LAN cable

shall not be longer than 50 m.

4-10

The patient monitor is

connected to a LAN

but cannot view other

patients under the

View Others mode

Incorrect IP address

configuration

Incorrect LAN cable

connection

Excessive requests for

viewing the patient

monitor at the same time

Incorrect IP

configuration

CIS assembly failure Replace CIS assembly.

Check for IP address conflict. Reconfigure IP

address.

Check LAN cable connection. LAN cable

shall not be longer than 50m.

A patient monitor can only be viewed by 4

other patient monitors at the same time under

the View Others mode. The excessive view

requests system will be ignored.

Check for IP address conflict. Reconfigure IP

address.

4.6.11 Software Upgrade Problems

Symptoms Possible Cause Corrective Action

Boot file upgrade fails Power failure or

unintended power off

during boot file upgrade

Return the CPU board to factory for repair.

Program upgrade fails

Incorrect network

connection

Wrong upgrade package

has been downloaded

Incorrect IP address

configuration

4.6.12 Technical Alarm Messages

Please refer to the Operator’s manual.

1. Check that network connector, not CIS

connector, on the patient monitor is used.

2. Make sure that the hub or switch run

normally. Check that net twines are of the

right type and have been connected correctly.

Upgrade package shall be .pkg files. Select

package according to system requirement.

Configure a fixed IP address in range C as

specified for the patient monitor. We

recommend not to upgrade a program when

the patient monitor is connected to a network

with multiple PCs.

4-11

4.6.13 M51A Self Test Information

New MPM module applies the integrative parameter board (ECG ASIC).

MPM Selftest Item Test Value

DSP selftest

information

7024 selftest

information

2131 selftest

information

ECG module selftest

information

Not F

Not 7F

Not 1F

Normal value：7 for 3/5

lead module; FF for

12-lead module

Test Value (New

MPM module)

Not FF Replace the module

Corrective Action

4-12

5 Repair and Disassembly

5.1 Tools

During disassembly and replacing, the following tools may be required:

 Phillips screwdrivers  Small flat-bladed screwdrivers  Contact spanner  Tweezers  Sharp nose pliers  Sleeve

5.2 Preparations for Disassembly

Before disassembling the monitor, finish the following preparations:

 Stop monitoring the patient, turn off the monitor and disconnect all the accessories and

peripheral devices.

 Disconnect the AC power source and take out both of the batteries.  Pull off all the modules in the integral module rack. If the SMR is connected, disconnect

the SMR from the monitor and then remove all the modules in it.

WARNING

z Before disassembling the monitor, be sure to eliminate the static charges first.

When disassembling the parts labeled with static-sensitive symbols, make sure you

are wearing electrostatic discharge protection such as antistatic wristband or

gloves to avoid damaging the equipment.

z Put the cables or wires in place when reassemble the monitor to avoid short circuit. z When assembling the monitor, be sure to select proper screws. If an unfit screw is

tightened by force, the monitor may be damaged and the screw or the part may fall

off during use to cause unpredictable damage or human injury.

z Be sure to follow the correct sequence to disassembly the monitor. Otherwise, the

monitor may be damaged permanently.

z Be sure to disconnect all the cables before disassembling any parts. Be sure not to

damage any cables or connectors.

z Be sure to place the monitor face up when disassembling it. Otherwise, the screen

or the knob may be scratched or damaged.

5-1

5.3 Basic Disassembly

5.3.1 Disconnecting the Base

NOTE

z Be sure to disassemble the base first before proceeding with other parts. z Be sure to place the monitor face up when disassembling it. If lay the monitor face

down, be sure the surface is non-abrasive and static-free. Otherwise, the screen or

the knob may be scratched or damaged.

1. The hook that prevents the power plug off is located beside the AC port in the rear case

of the monitor. Remove this hook and then place the monitor face up and unscrew the

four M4×12 screws, as shown in the figure below.

5-2

2. Pull out the base and then unplug the two cables marked in the picture, one connecting

the Power Switch & LED board and the button board, and the other connecting the

battery interface board and the power supply assembly.

NOTE

z Exercise care when pulling the base out. Be sure not to damage the cables and

connectors.

5-3

5.3.2 Separating the Front and Rear Half of the Monitor

1. Keep the monitor (without the base) face up. Disconnect the cables marked in the

picture, one connecting the LCD panel and the mother board, and the other connecting

the button board and the mother board.

NOTE

z Release the clip before disconnecting the cable between the button board and the

mother board.

2. Carefully place the monitor face down. Pry up the four screw covers with a small

flat-bladed screwdriver and unscrew the four M3×12 screws exposed. Then unscrew the

M3×12 screw in the handle.

5-4

Avoid pressing the

knob on the table.

NOTE

z Press the cover with a thumb when prying it. z Avoid pressing the knob on the table.

3. Lift the rear cover assembly to separate it from the front cover assembly.

5-5

5.4 Further Disassembly

5.4.1 Removing the Power Switch & LED Board

1. Locate the cable marked in the picture and disconnect it from the power switch & LED

board.

Left Clip

Right Clip

2. Release the clips with fingers. At the same time pinch the power switch & LED board,

push it to the left and take it out along with the power switch.

NOTE

z Exercise care whe releasing the clips. z When installing the LED board along with the power switch, put it on the left clip,

unclench the right clip to the right direction slightly, and then press it down.

5-6

5.4.2 Disconnecting the Encoder Assembly

1. Disconnect the cable that connects the knob encoder and the button board. Then

unscrew the two M3×6 screws and take out the encoder assembly.

5.4.3 Removing the Button Board

1. Disconnect the cables from the button board to the power switch & LED board, knob

encoder, alarm LED board, backlight board and, touchscreen control board and the

mother board.

5-7

2. Remove the grounding spring and then unscrew the three PT3×8 screws and take out the

button board.

NOTE

z Do not forget the grounding spring when reassembling.

5.4.4 Removing the Touchscreen Control Board

Unplug the touchscreen cable and the cable from the button board to the touchscreen control board. Then, unscrew the two M3×6 screws and remove the touchscreen control board.

5-8

5.4.5 Removing the Inverter

1. Unscrew the six M3×6 screws and remove the inverter shield.

2. Unplug the cables respectively from the button board and the LCD to the inverter. Then,

unscrew the two M3×6 screws to remove the inverter.

Heat-conductive insulator

NOTE

z Release the clip (if any) before disconnecting the cable between the LCD and the

inverter.

z When reassembling, check whether the two heat-conductive insulators are in place.

5-9

5.4.6 Removing the LCD Screen

CAUTION

z Do not touch the LCD screen. z Disassemble the LCD screen in an environment as dust-free as possible.

1. Unscrew the eight M3×6 screws and take the screen assembly out carefully. To prevent

the screen from being contaminated by dust, do not touch the screen.

Do not touch the

LCD panel

2. Unscrew the four M3X6 screws and take out the LCD screen.

5-10

3. Unscrew the four M3X6 screws and separate the LCD screen from the two supporters.

5-11

5.4.7 Removing the Alarm Lamp Board

1. After removing the LCD panel, disconnect the cable that connects the alarm lamp board

and the button board, and then remove the alarm lamp board on which there is no screw.

NOTE

z Exercise care when removing the alarm lamp board because it may be adhered to

the LCD assembly (as shown in the above figure).

5-12

5.4.8 Removing the Wireless AP

5.4.8.1 Removing the Internal Wireless AP

1. Unplug the wireless AP cable from the main board. Then unscrew the three M3X6

screws and take out the wireless AP assembly.

2. Unscrew the M3 nut and then remove the wireless AP.

5-13

5.4.8.2 Removing the External Wireless AP

1. Disconnect the network cable and the power cord

2. Press the leaf on the fix board with forceps; push the AP and installation board upwards.

Then remove the AP and installation board.

Press the leaf with a

forceps

Installation board

3. Unscrew the two M3×8 screws and take out the fix board.

5-14

5.4.9 Removing the CF Assembly

1. Disconnect the cable between the CF driving board and main board. Unscrew the two

M3X6 screws and take out the CF assembly.

2. Unscrew the two M3X6 screws and take out the CF driving board.

5-15

5.4.10 Removing the Main Board

1. Pull out all the connectors on the mother board. There are numbers beside the

connectors, which are listed below.

Number Connected to

J1 Power module

J2 Speaker

J3 Fan

J4 Integral module rack

J5 Button board

J6 DVI interface board

J7 LCD panel

J8 Recorder

J16 Wireless AP

J10 CIS assembly

J11 USB interface board

J12 CF assembly

J22/J23 CPU board, which is connected to the mother board with a socket

5-16

2. Unscrew the four M3×6 screws as shown in the figure above and take out the main

board that includes the mother board and the CPU board.

3. Unscrew the four M2.5×6 screws and separate the mother board from the CPU board.

Be sure not to damage the socket that connects the two boards. There is a battery on the

CPU board.

Battery

5-17

5.4.11 Removing the Fan

1. Disconnect the connector that connects the fan and the mother board. Then unscrew the

three M3×6 screws and remove the fan.

5.4.12 Removing the Speaker

1. Disconnect the connector that connects the speaker and the mother board. Then unscrew

the two M3×6 screws and remove the speaker.

CAUTION

z When installing a speaker, be sure to keep the cable from the press bar. Otherwise,

the speaker may be short-circuited.

5-18

5.4.13 Removing the Interface Board Assembly

1. Unscrew the four M3×6 screws and remove the interface board assembly.

2. Unscrew the screws beside the DVI socket and micro-D socket. Then unscrew the two

M3×6 screws in the holes. After that, pull out the DVI interface board.

Screws beside DVI socket

Two M3×6 Screws in Holes

5-19

Screws beside micro-D socket

3. Unscrew the two M3×6 screws and take out the USB interface board upwards.

NOTE

z Before removing the USB interface board, the DVI interface board must be

removed first.

z Be careful not to damage the insulation between the DVI interface board and the

USB interface board. If it is damaged, stick a new one.

5.4.14 Removing the Power Supply Assembly

1. Disconnect the cables from the socket of the power supply.

NOTE

z For some cables, you have to release the clips on it before disconnecting them.

5-20

Mindray DPM7 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual