Nihon Kohden CNS 9701 User manual
CNS-9701A
CNS-9701J
CNS-9701K
CENTRAL MONITOR
CNS-9701
0634-001842C
Model: CNS-9701
Manual code no.: 0634-001842C
We welcome your comments about this manual. Your comments and suggestions help us improve
our manuals. Please circle the number for each of the following statements corresponding to your
evaluation and add comments in the space provided.
Fax or send your completed comment card to:
Fax: +81 (3) 5996-8100
International Div., Sales Promotion Section, Nihon Kohden Corp., 1-31-4, Nishiochiai Shinjuku-ku,
Tokyo 161-8560, Japan
This manual is organized. 1 2 3 4 5
I can find the information I want. 1 2 3 4 5
The information is accurate. 1 2 3 4 5
I can understand the instructions. 1 2 3 4 5
The illustrations are appropriate and helpful. 1 2 3 4 5
cutting line
The manual length is appropriate. 1 2 3 4 5
Reader Comment Card
Strongly Agree Neutral Disagree Strongly
Agree Disagree
Comments:
Thank you for your cooperation. We appreciate it very much.
Name:
Occupation/Position:
Hospital/Company:
Address:
Phone:
CONTENTS
Contents
GENERAL HANDLING PRECAUTIONS ......................................................................... i
WARRANTY POLICY .................................................................................................... ii
EMC RELATED CAUTION............................................................................................ iii
Conventions Used in this Manual and Instrument ......................................................... v
Warnings, Cautions and Notes ............................................................................v
Explanations of the Symbols in this Manual and Instrument...............................v
Section 1 General .................................................................................. 1C.1
Introduction .......................................................................................................................... 1.1
General Information on Servicing .........................................................................................1.2
Service Policy, Service Parts and Patient Safety Checks ....................................................1.4
Service Policy ............................................................................................................1.4
Service Parts ............................................................................................................. 1.4
Maintenance Equipments and Tools ........................................................................... 1.4
Important Safety Information ............................................................................................... 1.5
General .......................................................................................................................1.5
Installation ................................................................................................................. 1.6
UPS ........................................................................................................................... 1.6
Network ...................................................................................................................... 1.7
Turning the Power On/Off ...........................................................................................1.8
Discharge and Receiving Channel Change ................................................................. 1.8
Temporary Discharge ..................................................................................................1.9
Patient Transfer ..........................................................................................................1.9
Alarm ......................................................................................................................... 1.9
ECG Monitoring ........................................................................................................1.10
NIBP Measurement ..................................................................................................1.10
Maintenance ............................................................................................................ 1.11
Specification ...................................................................................................................... 1.12
Display ..................................................................................................................... 1.12
Waveform Display Items .......................................................................................... 1.12
Alphanumeric Display Items .................................................................................... 1.12
Sound ....................................................................................................................... 1.12
Alarm Function .........................................................................................................1.12
Trend ........................................................................................................................ 1.13
Waveform Sensitivity ............................................................................................... 1.13
Overview .................................................................................................................. 1.13
Remote Setting ........................................................................................................ 1.13
Full Disclosure ......................................................................................................... 1.13
File Saving ...............................................................................................................1.13
2-ch recorder, WS-971R (option) ............................................................................... 1.14
Laser Printer (local purchase)................................................................................... 1.14
Power Requirements ................................................................................................ 1.14
Environment ............................................................................................................. 1.15
Electromagnetic Compatibility .................................................................................. 1.15
Service Manual CNS-9701 C.1
CONTENTS
Safety ...................................................................................................................... 1.15
Dimensions and Weight ............................................................................................ 1.15
Panel Descriptions..............................................................................................................1.16
Central Monitor Main Unit MU-971RA/RJ/RK ........................................................... 1.16
Front Panel ..................................................................................................... 1.16
Rear Panel ..................................................................................................... 1.17
LCD Unit VL-971R/RK .............................................................................................. 1.18
Front ............................................................................................................... 1.18
Rear ............................................................................................................... 1.18
Recorder Unit WS-971R............................................................................................ 1.19
Composition ....................................................................................................................... 1.20
Options..................................................................................................................... 1.20
Connection Diagram ........................................................................................................... 1.21
Section 2 Troubleshooting ................................................................... 2C.1
General ................................................................................................................................. 2.1
System ................................................................................................................................. 2.3
Network ................................................................................................................................ 2.4
Measurement Value .............................................................................................................. 2.5
Alarm .................................................................................................................................... 2.5
Admitting/Discharging .......................................................................................................... 2.6
All Beds Screen/Individual Bed Screen ................................................................................2.7
Trend Window .......................................................................................................................2.8
Tabular Trend Window ........................................................................................................... 2.8
Hemodynamics List Window .................................................................................................2.8
Arrhythmia Recall Window ....................................................................................................2.9
ST Recall Window ................................................................................................................ 2.9
Full Disclosure Window....................................................................................................... 2.10
ECG 12 Lead Analysis Window ..........................................................................................2.10
Report Window ................................................................................................................... 2.11
Recording ...........................................................................................................................2.11
Overview Bed Screen ......................................................................................................... 2.12
Parameter Setup ................................................................................................................ 2.12
Power Problem ................................................................................................................... 2.13
Display Problem ................................................................................................................. 2.14
Touch Screen Problem ....................................................................................................... 2.16
Sound Problem ................................................................................................................... 2.16
Keyboard Problem .............................................................................................................. 2.17
Mouse Problem .................................................................................................................. 2.17
Hard Disk Problem ............................................................................................................. 2.17
CD-ROM Drive or Floppy Disk Drive Problem .................................................................... 2.18
2-channel Recorder Unit Problem ....................................................................................... 2.18
Error Messages .................................................................................................................. 2.19
Messages From Bedside Monitors/Multiple Patient Receiver ...................................2.19
Messages about Measurement Conditions of Each Parameter ...................... 2.19
Other ..............................................................................................................2.24
Messages From Central Monitor .............................................................................. 2.25
WS-971R Recorder Unit ................................................................................. 2.25
C.2 Service Manual CNS-9701
CONTENTS
Laser Printer .................................................................................................. 2.25
Other ..............................................................................................................2.25
Hard Disk Replacement Flow ............................................................................................. 2.26
How to Recover the BIOS Initial Settings .......................................................................... 2.27
BIOS Default Setting (Vorax5000) .................................................................. 2.28
BIOS Default Setting (Vorax5001) .................................................................. 2.30
Section 3 Board/Unit Description ........................................................ 3C.1
Power Supply Unit (by NIPRON) .......................................................................................... 3.1
Motherboard (by A-OPEN) ....................................................................................................3.1
CPU (1 GHz Pentium 3 or 2.4 GHz Pentium 4) Box .............................................................3.1
256 MB Memory DIMM S-DRAM or DDR266 .......................................................................3.2
40 GB Hard Disk (by IBM) .................................................................................................... 3.2
CD-ROM Drive (by SAMSUNG) ........................................................................................... 3.2
Graphic Board RADEON 32 or RADEON 7000 (by ATI)........................................................3.2
PC Chassis IW-V500 or IW-V500G ....................................................................................... 3.3
Fan for Chassis .................................................................................................................... 3.3
Mouse ..................................................................................................................................3.3
RS232C Interface Board CYBER SERIAL ............................................................................ 3.3
Section 4 Disassembly and Assembly............................................... 4C.1
Before You Begin ..................................................................................................................4.1
Warnings and Caution .................................................................................................4.1
Required Tools ............................................................................................................ 4.1
Disassembling the Main Unit ................................................................................................ 4.2
Replacing the Motherboard .........................................................................................4.2
Replacing the Lithium Battery on the Motherboard ................................................... 4.10
Replacing the CPU ................................................................................................... 4.10
Replacing the Internal Memory ................................................................................. 4.10
Replacing the Hard Disk ...........................................................................................4.11
Replacing the Graphic Board .................................................................................... 4.11
Replacing the Fans...................................................................................................4.11
Replacing the Floppy Disk Drive .............................................................................. 4.12
Replacing the Power Supply Unit ............................................................................. 4.12
Replacing the CD Drive ............................................................................................ 4.12
Disassembling the Optional VL-971R Display Unit ............................................................. 4.13
Replacing the LCD Assembly................................................................................... 4.13
Removing the Display Unit Chassis ......................................................................... 4.15
Replacing the Touch Screen ..................................................................................... 4.19
Disassembling the Optional WS-971R Recorder Unit.......................................................... 4.20
Removing the Recorder Sub Assy ........................................................................... 4.20
Removing the AC Inlet Socket .................................................................................4.21
Removing the RS232C Interface Board ....................................................................4.22
Removing the Power Supply Unit ............................................................................. 4.22
Removing the Front Panel ........................................................................................ 4.22
Replacing the LED ................................................................................................... 4.23
Replacing the Platen Roller/Bushings/Gear .............................................................. 4.24
Service Manual CNS-9701 C.3
CONTENTS
Cleaning the Thermal Array Head/Paper Sensor .......................................................4.25
Operation Check after Assembling the Recorder Unit .............................................. 4.25
Section 5 Maintenance ......................................................................... 5C.1
To Be Replaced Periodically .................................................................................................5.1
Maintenance Check Items and Schedule ............................................................................. 5.1
External and Connection ............................................................................................5.2
Display .......................................................................................................................5.2
Sound ......................................................................................................................... 5.2
Operation ................................................................................................................... 5.3
Data Storage .............................................................................................................. 5.3
Network Communication ............................................................................................. 5.4
Recorder ..................................................................................................................... 5.4
Laser Printer .............................................................................................................. 5.4
UPS ........................................................................................................................... 5.5
Safety ........................................................................................................................ 5.5
Section 6 Adjustment............................................................................ 6C.1
Adjusting the VL-971R Display Unit ......................................................................................6.1
Automatic Adjustment ................................................................................................ 6.1
Manual Adjustment .................................................................................................... 6.2
Section 7 Replaceable Parts List......................................................... 7C.1
MU-971RA/RJ/RK Main Unit (Vorax5000) .............................................................................7.2
MU-971RA/RJ/RK Main Unit (Vorax5001) .............................................................................7.4
VL-971R/RK Optional Display Unit ....................................................................................... 7.6
WS-971R Optional Recorder Unit .........................................................................................7.8
Section 8 Network Settings .................................................................. 8C.1
Network Setting Flowchart ................................................................................................... 8.2
Setting the IP Address on Each Instrument .........................................................................8.3
Manually Setting the IP Address of the Central Monitor .............................................8.3
Installing the Laser Printer (Network Printer) ........................................................................8.6
Connecting the Network System ........................................................................................ 8.12
Start the System ................................................................................................................ 8.12
Checking the Network Connection on the Central Monitor .................................................. 8.13
Assigning the Group Name and Bed Name ........................................................................ 8.14
Assigning a Bed Name/CNS Name .......................................................................... 8.15
Assigning a CNS Name to a Central Monitor ................................................. 8.15
Registering Group Names in the Central Monitor ...................................................... 8.15
Assigning a Group Name ......................................................................................... 8.16
Checking the Bed Name and Group Name Setting ................................................... 8.16
Selecting the Monitored Beds ............................................................................................ 8.17
Changing Settings of System Setup, Patient Setting and Setup ........................................8.19
Adding an Instrument to the Network During System Operation ......................................... 8.20
C.4 Service Manual CNS-9701
CONTENTS
Section 9 Connector Pin Assignment ................................................ 9C.1
Sockets at the Rear of the Main Unit ................................................................................... 9.1
SOUND Socket ..........................................................................................................9.1
TOUCH1/TOUCH2 Socket .......................................................................................... 9.1
VIDEO1/VIDEO2 Socket ........................................................................................... 9.2
RECORDER Socket ...................................................................................................9.2
PROTECT KEY Socket .............................................................................................. 9.2
Service Manual CNS-9701 C.5
CONTENTS
This page is intentionally left blank.
C.6 Service Manual CNS-9701
GENERAL HANDLING PRECAUTIONS
This device is intended for use only by qualified medical personnel.
Use only Nihon Kohden approved products with this device. Use of non-approved products or in
a non-approved manner may affect the performance specifications of the device. This includes,
but is not limited to, batteries, recording paper, pens, extension cables, electrode leads, input
boxes and AC power.
Please read these precautions thoroughly before attempting to operate the instrument.
1. To safely and effectively use the instrument, its operation must be fully understood.
2. When installing or storing the instrument, take the following precautions:
(1) Avoid moisture or contact with water, extreme atmospheric pressure, excessive humidity and temperatures, poorly
ventilated areas, and dust, saline or sulphuric air.
(2) Place the instrument on an even, level floor. Avoid vibration and mechanical shock, even during transport.
(3) Avoid placing in an area where chemicals are stored or where there is danger of gas leakage.
(4) The power line source to be applied to the instrument must correspond in frequency and voltage to product
specifications, and have sufficient current capacity.
(5) Choose a room where a proper grounding facility is available.
3. Before Operation
(1) Check that the instrument is in perfect operating order.
(2) Check that the instrument is grounded properly.
(3) Check that all cords are connected properly.
(4) Pay extra attention when the instrument is in combination with other instruments to avoid misdiagnosis or other
problems.
(5) All circuitry used for direct patient connection must be doubly checked.
(6) Check that battery level is acceptable and battery condition is good when using battery-operated models.
4. During Operation
(1) Both the instrument and the patient must receive continual, careful attention.
(2) Turn power off or remove electrodes and/or transducers when necessary to assure the patient’s safety.
(3) Avoid direct contact between the instrument housing and the patient.
5. To Shutdown After Use
(1) Turn power off with all controls returned to their original positions.
(2) Remove the cords gently; do not use force to remove them.
(3) Clean the instrument together with all accessories for their next use.
6. The instrument must receive expert, professional attention for maintenance and repairs. When the instrument is
not functioning properly, it should be clearly marked to avoid operation while it is out of order.
7. The instrument must not be altered or modified in any way.
8. Maintenance and Inspection:
(1) The instrument and parts must undergo regular maintenance inspection at least every 6 months.
(2) If stored for extended periods without being used, make sure prior to operation that the instrument is in perfect
operating condition.
Service Manual CNS-9701 i
(3) Technical information such as parts list, descriptions, calibration instructions or other information is available for
qualified user technical personnel upon request from your Nihon Kohden distributor.
9. When the instrument is used with an electrosurgical instrument, pay careful attention to the application and/or
location of electrodes and/or transducers to avoid possible burn to the patient.
10. When the instrument is used with a defibrillator, make sure that the instrument is protected against defibrillator
discharge. If not, remove patient cables and/or transducers from the instrument to avoid possible damage.
WARRANTY POLICY
Nihon Kohden Corporation (NKC) shall warrant its products against all defects in materials and workmanship for one year
from the date of delivery. However, consumable materials such as recording paper, ink, stylus and battery are excluded from
the warranty.
NKC or its authorized agents will repair or replace any products which prove to be defective during the warranty period,
provided these products are used as prescribed by the operating instructions given in the operator’s and service manuals.
No other party is authorized to make any warranty or assume liability for NKC’s products. NKC will not recognize any other
warranty, either implied or in writing. In addition, service, technical modification or any other product change performed by
someone other than NKC or its authorized agents without prior consent of NKC may be cause for voiding this warranty.
Defective products or parts must be returned to NKC or its authorized agents, along with an explanation of the failure.
Shipping costs must be pre-paid.
This warranty does not apply to products that have been modified, disassembled, reinstalled or repaired without Nihon
Kohden approval or which have been subjected to neglect or accident, damage due to accident, fire, lightning, vandalism,
water or other casualty, improper installation or application, or on which the original identification marks have been
removed.
In the USA and Canada other warranty policies may apply.
CAUTION
United States law restricts this device to sale by or on the order of a physician.
ii Service Manual CNS-9701
EMC RELATED CAUTION
This equipment and/or system complies with the International Standard IEC 60601-1-2 for electromagnetic
compatibility for medical electrical equipment and/or system. However, an electromagnetic environment
that exceeds the limits or levels stipulated in the IEC 60601-1-2, can cause harmful interference to the
equipment and/or system or cause the equipment and/or system to fail to perform its intended function or
degrade its intended performance. Therefore, during the operation of the equipment and/or system, if
there is any undesired deviation from its intended operational performance, you must avoid, identify and
resolve the adverse electromagnetic effect before continuing to use the equipment and/or system.
The following describes some common interference sources and remedial actions:
1. Strong electromagnetic interference from a nearby emitter source such as an authorized radio station
or cellular phone:
Install the equipment and/or system at another location if it is interfered with by an emitter source such
as an authorized radio station. Keep the emitter source such as cellular phone away from the
equipment and/or system.
2. Radio-frequency interference from other equipment through the AC power supply of the equipment
and/or system:
Identify the cause of this interference and if possible remove this interference source. If this is not
possible, use a different power supply.
3. Effect of direct or indirect electrostatic discharge:
Make sure all users and patients in contact with the equipment and/or system are free from direct or
indirect electrostatic energy before using it.
4. Electromagnetic interference with any radio wave receiver such as radio or television:
If the equipment and/or system interferes with any radio wave receiver, locate the equipment and/or
system as far as possible from the radio wave receiver.
If the above suggested remedial actions do not solve the problem, consult your Nihon Kohden Corporation
subsidiary or distributor for additional suggestions.
The CE mark is a protected conformity mark of the European Community. The products herewith comply
with the requirements of the Medical Device Directive 93/42/EEC.
The CE mark only applies to the CNS-9701K series central monitors.
This equipment complies with EUROPEAN STANDARD EN-60601-1-2 (1993) which requires EN-55011, class
A. Class A EQUIPMENT is allowed in domestic establishments when used under the jurisdiction of a
health care professional.
Service Manual CNS-9701 iii
In IEC 60601-1-2 Medical Electronic Equipment, Part 1: General Requirements for Safety, 2. Collateral
Standard: Electromagnetic compatibility-Requirements and test. Section 36. 202. 2 Radiated radio-
frequency electromagnetic fields, PATIENT COUPLED EQUIPMENT and/or SYSTEMS applicable IMMUNITY
test methods are under consideration at SC62A/WG13. The 3 V/m IMMUNITY level may be inappropriate
especially when measuring SpO2 because physiological signals can be much smaller than those induced
by a 3 V/m electromagnetic field.
When measuring SpO2, various interference may produce false waveforms which look like pulse
waveforms. SpO2 value and pulse rate may be measured from these false waveforms, causing the alarm to
function improperly.
When installing the monitor, avoid locations where the monitor may receive strong electromagnetic
interference such as radio or TV stations, cellular phone or mobile two-way radios.
iv Service Manual CNS-9701
Conventions Used in this Manual and Instrument
Warnings, Cautions and Notes
Warnings, cautions and notes are used in this manual to alert or signal the reader to specific information.
WARNING
A warning alerts the user to possible injury or death associated with the use or misuse of the instrument.
CAUTION
A caution alerts the user to possible injury or problems with the instrument associated with its use or
misuse such as instrument malfunction, instrument failure, damage to the instrument, or damage to other
property.
NOTE
A note provides specific information, in the form of recommendations, prerequirements, alternative
methods or supplemental information.
Explanations of the Symbols in this Manual and Instrument
The following symbols found in this manual/instrument bear the respective descriptions as given.
On MU-971RA/RJ/RK central monitor main unit
Symbol Description Symbol Description
Power ON Hard disk lamp
Power OFF Reset
Attention, consult operator’s
manual
Mouse socket
System start/shutdown Keyboard socket
(Only for CNS-9701K)
The CE mark is a protected
conformity mark of the European
Power lamp (Power ON)
Service Manual CNS-9701 v
Community. The products herewith
comply with the requirements of the
Medical Device Directive
93/42/EEC.
On Screen
Symbol Description Symbol Description
Overview Adjust setting/Scroll data
Help Alarm
Print Stop Speaker
Delayed recording start Electrocardiogram
Alarm suspend/silence with
Print mark/Print
remaining minutes at the central
monitor
Menu (System Setup) Alarm suspend at the transmitter
Previous All alarm off, vital sign alarm off
All Beds Alarm recording off
Deletion mark QRS sync mark
Close a window
On VL-971R/RK LCD unit
Symbol Description Symbol Description
Power on
Attention, consult operator’s
manual
Power off
On WS-971R Recorder Unit
Symbol Description Symbol Description
Power on Fuse
Power off Type B applied part
For the symbol marks on the locally purchaced LCD display, laser printer and UPS, refer to each instruction manual.
vi Service Manual CNS-9701
Section 1 General
Introduction ......................................................................................................................... 1.1
General Information on Servicing ........................................................................................1.2
Service Policy, Service Parts and Patient Safety Checks ...................................................1.4
Service Policy ...........................................................................................................1.4
Service Parts ............................................................................................................ 1.4
Maintenance Equipments and Tools ..........................................................................1.4
Important Safety Information .............................................................................................. 1.5
General ......................................................................................................................1.5
Installation ................................................................................................................ 1.6
UPS .......................................................................................................................... 1.6
Network .....................................................................................................................1.7
Turning the Power On/Off ..........................................................................................1.8
Discharge and Receiving Channel Change ................................................................ 1.8
Temporary Discharge .................................................................................................1.9
Patient Transfer .........................................................................................................1.9
Alarm ........................................................................................................................ 1.9
ECG Monitoring .......................................................................................................1.10
NIBP Measurement .................................................................................................1.10
Maintenance ........................................................................................................... 1.11
Specification ..................................................................................................................... 1.12
Display .................................................................................................................... 1.12
Waveform Display Items ......................................................................................... 1.12
Alphanumeric Display Items ................................................................................... 1.12
Sound ...................................................................................................................... 1.12
Alarm Function ........................................................................................................1.12
Trend ....................................................................................................................... 1.13
Waveform Sensitivity .............................................................................................. 1.13
Overview ................................................................................................................. 1.13
Remote Setting ....................................................................................................... 1.13
Full Disclosure ........................................................................................................ 1.13
File Saving ..............................................................................................................1.13
2-ch recorder, WS-971R (option) .............................................................................. 1.14
Laser Printer (local purchase).................................................................................. 1.14
Power Requirements ............................................................................................... 1.14
Service Manual CNS-9701 1C.1
Environment ............................................................................................................ 1.15
Electromagnetic Compatibility ................................................................................. 1.15
Safety ..................................................................................................................... 1.15
Dimensions and Weight ........................................................................................... 1.15
Panel Descriptions.............................................................................................................1.16
Central Monitor Main Unit MU-971RA/RJ/RK .......................................................... 1.16
Front Panel .................................................................................................... 1.16
Rear Panel .................................................................................................... 1.17
LCD Unit VL-971R/RK ............................................................................................. 1.18
Front .............................................................................................................. 1.18
Rear .............................................................................................................. 1.18
Recorder Unit WS-971R........................................................................................... 1.19
Composition ...................................................................................................................... 1.20
Options.................................................................................................................... 1.20
Connection Diagram .......................................................................................................... 1.21
1C.2 Service Manual CNS-9701
Introduction
1. GENERAL
This service manual provides useful information to qualified service personnel to
understand, troubleshoot, service, maintain and repair the CNS-9701A/J/K Central
Monitor (referred to as “monitor” in this service manual).
All replaceable parts or units of this monitor and its optional units are clearly listed
to help you locate the parts quickly.
The “Maintenance” section in this service manual only describes the maintenance
that should be performed by qualified service personnel. The Maintenance section
in the operator’s manual describes the maintenance that can be performed by the
user.
The information in the operator’s manual is primarily for the user. However, it is
important for service personnel to thoroughly read the operator’s manual and
service manual before starting to troubleshoot, service, maintain or repair this
monitor. This is because service personnel need to understand the operation of the
monitor in order to effectively use the information in the service manual.
Service Manual CNS-9701 1.1
1. GENERAL
General Information on Servicing
Note the following information when servicing the monitor.
To avoid the possibility of injury to yourself or damage to the
monitor, do not install or remove any component while the power is
on. When disassembling, make sure that the monitor is turned off
and the power cord is disconnected from the monitor and AC outlet.
There is a high voltage circuit on the power unit.
Safety
• There is the possibility that the outside surface of the monitor, such
as the operation keys, could be contaminated by contagious germs
so disinfect and clean the monitor before servicing it. When
servicing the monitor, wear rubber gloves to protect yourself from
infection.
WARNING
CAUTIONS
• There is the possibility that when the lithium battery or LCD unit is
broken, a solvent could flow out or a toxic substance inside it could
come out. If the solvent or toxic substance contacts the eyes or skin,
wash immediately and thoroughly with water and see your physician.
Never rub your eyes, otherwise you may lose your eyesight.
• To avoid accidental electrostatic discharge which could damage the
components of the monitor, use a grounded wrist strap when
installing or removing any component of the monitor.
• Use a pair of clean cotton gloves when replacing the LCD unit. If it is
damaged, your hand may get injured.
Liquid ingress
The monitor is not waterproof, so do not install the monitor where
water or liquid can get into or fall on the monitor. If liquid
accidentally gets into the monitor or the monitor accidentally falls
into liquid, disassemble the monitor, clean it with clean water and dry
it completely. After reassembling, do the patient safety checks and
function/performance checks to verify that there is nothing wrong. If
there is something wrong with the monitor, contact your Nihon
Kohden representative for repair.
1.2 Service Manual CNS-9701
1. GENERAL
Environmental Safeguards
Depending on the local laws in your community, it may be illegal to
dispose of the lithium battery in the regular waste collection. Check
with your local officials for proper disposal procedures.
Disinfection and cleaning
To disinfect the outside surface of the monitor, wipe it with a non-
abrasive cloth moistened with any of the disinfectants listed below.
Do not use any other disinfectants or ultraviolet rays to disinfect the
monitor.
- Chlorohexidine gluconate solution: 0.5%
- Benzethonium chloride solution: 0.2%
- Glutaraldehyde solution: 2.0%
- Benzalkonium chloride: 0.2%
- Hydrochloric alkyl diaminoethylglycine: 0.5%
Transport
• Use the specified shipment container and packing material to
transport the monitor. If necessary, double pack the monitor. Also,
put the monitor into the shipment container after packing so that the
buffer material does not get inside the monitor.
• When transporting a board or unit of the monitor, be sure to put it in
a conductive bag. Never use an aluminum bag to transport a board
or unit. Also, never use a styrene foam or plastic bag which
generates static electricity to wrap the board or unit of the monitor.
Handling the monitor
• Because the outside surface of the monitor is made of resin, the
outside surface of the monitor is easily damaged. So when handling
the monitor, remove clutter from around the monitor and be careful
to not damage the monitor or get it dirty.
• Because most of the boards in the monitor are multilayer boards with
surface mount electrical devices (SMD), a special tool is required to
remove and solder the electrical devices on it. To avoid damaging
other electrical components, do not remove and solder SMD
components yourself.
Measuring and Test Equipment
Maintain the accuracy of the measuring and test equipment by
checking and calibrating it according to the check and calibration
procedures.
Lithium Battery
• Before disposing of the battery, check with your local solid waste
officials for details in your area for recycling options or proper
disposal. The battery is recyclable. At the end of its useful life, under
various state and local laws, it may be illegal to dispose of this
battery into the municipal waste stream.
Service Manual CNS-9701 1.3
1. GENERAL
Service Policy, Service Parts and Patient Safety Checks
Service Policy Our technical service policy for this monitor is to replace the faulty unit, board or
part or damaged mechanical part with a new one. Do not perform electrical device
or component level repair of the multilayer board or unit. We do not support
component level repair outside the factory for the following reasons:
• Most of the boards are multilayer boards with surface mount electrical
devices, so the mounting density of the board is too high.
• A special tool or high degree of repair skill is required to repair the multilayer
boards with surface mount electrical devices.
Only disassemble the monitor or replace a board or unit in an environment where
the monitor is protected against static electricity.
As background knowledge for repair, pay special attention to the following:
• To reduce the repair time, consider the problem before starting repair.
• To clarify the source of the troubles, use the information from the diagnostic
check function of the monitor and the information described in the
troubleshooting section.
Service Parts
Maintenance Equipments
and Tools
Refer to “Replaceable Parts List” of this manual for the service parts for technical
service that we provide.
NOTE
When ordering parts or accessories from your Nihon Kohden
representative, please quote the NK code number and part name
which is listed in this service manual, and the name or model of the
unit in which the required part is located. This will help us to
promptly attend to your needs. Always use parts and accessories
recommended or supplied by Nihon Kohden Corporation to assure
maximum performance from your monitor.
Test equipment
When repairing or calibrating the monitor, the following test equipment is required.
• Digital voltmeter: standard type (An oscilloscope can be used instead of the
digital voltmeter.)
1.4 Service Manual CNS-9701
Important Safety Information
General
••
• Never use the central monitor in the presence of any flammable
••
anesthetic gas, concentrated oxygen or hyperbaric oxygen. Failure
to follow this warning may result in explosion.
••
• Never use the central monitor in a high-pressure oxygen medical
••
care tank. Failure to follow this warning may cause explosion or fire.
••
• Do not install any software other than specified by Nihon Kohden
••
and run it in the central monitor. Otherwise Nihon Kohden does not
warrant normal operation of the CNS-9701 system program.
••
• Do not install the CNS-9701 system software into a personal
••
computer which is not specified by Nihon Kohden and use it for
monitoring.
- If the personal computer does not satisfy the performance
specifications which are required by Nihon Kohden, the system
software may not function normally.
- If the personal computer does not satisfy the safety standards
which are required by Nihon Kohden, the patient and operator may
get electrical shock through another instrument in the network.
••
• While the central monitor is on, do not insert any CD-ROM or floppy
••
disk into it. Nihon Kohden does not warrant the normal operation of
the central monitor in the case that an application or software
installation starts automatically.
1. GENERAL
WARNING
CAUTION
••
• If any liquid might have gotten into the central monitor, take it out of
••
service and contact your Nihon Kohden distributor or
representatives.
••
• While the central monitor is on, do not touch unused sockets.
••
Failure to follow this caution may damage the monitor by static
electricity and may cause malfunction.
Service Manual CNS-9701 1.5
1. GENERAL
Installation
WARNING
Install the central monitor and external instruments outside the
patient environment (IEC 60601-1-1 2.204). If they are installed inside
the patient environment, the patient or operator may receive
electrical shock. For installation, contact your Nihon Kohden
distributor or representative.
CAUTION
••
• Only use the provided power cord. Using other power cords may
••
result in electrical shock or other injury to the patient and operator.
••
• Before connecting or disconnecting instruments, turn each
••
instrument off and disconnect each power cord from the AC socket.
Failure to follow this caution may cause electrical shock.
••
• Connect only the specified instruments to the central monitor by
••
following the specified procedure. Otherwise, electrical leakage
current may harm the patient and operator.
••
• Do not let connection cables stick out; run them along the floor or
••
wall. If people trip over the cable, the monitor may tip over and it
may cause injury.
UPS
WARNING
••
• Install the UPS outside the patient environment (IEC 60601-1-1 2.204).
••
If it is installed inside the patient environment, the safety standards
which are required by Nihon Kohden are not satisfied and it may
cause electrical shock to the patient or operator.
••
• Use a UPS which satisfies the safety standards specified by IEC and
••
UL. Otherwise, lack of safety may cause electrical shock to the
patient or operator.
••
• Periodically check the life of the UPS battery. Replace the battery
••
when the lifetime expires. If the battery is used beyond its lifetime,
liquid leakage, smoke, fire or explosion may occur.
CAUTION
••
• Make sure that the UPS is properly grounded. Otherwise the
••
operator may receive electrical shock.
••
• To assure an uninterrupted power supply, we recommend using the
••
specified UPS. A sudden loss of power supply or an extreme power
surge can damage the central monitor and delete stored data.
1.6 Service Manual CNS-9701
Network
1. GENERAL
WARNING
••
• Connect the central monitor to the network as specified in the
••
Network and System Installation Guide. Otherwise the patient and
operator may get electrical shock or other injury. For connecting the
network, contact your Nihon Kohden distributor or representatives.
••
• Check the software version number of the monitor before connecting
••
it to the network. Different software versions have different
communication methods. When there is more than one
communication method in the network, communication may
malfunction.
••
• Install the external instruments including the printer and hubs
••
outside the patient environment (IEC 60601-1-1 2.204). If they are
installed inside the patient environment, the patient or operator may
receive electrical shock. For installation, contact your Nihon Kohden
distributor or representatives.
CAUTION
••
• Network settings and Windows 2000 system settings must only be
••
set by a qualified service personnel. Contact your Nihon Kohden
distributor or representatives.
••
• The network must be managed by the network administrator. Make
••
sure that each monitor in the network has a different IP address.
Otherwise, data communication cannot be performed properly and it
causes incorrect monitoring. When adding a monitor to an already
operating network, set the IP address on the monitor before
connecting the monitor to the network.
Service Manual CNS-9701 1.7
1. GENERAL
Turning the Power On/Off
WARNING
••
• Do not turn off the display to which the sound cable is connected.
••
Otherwise there is no alarm sound.
••
• Do not adjust the sound volume at the display unit. If you decrease
••
the display unit volume to the minimum, there is no alarm sound.
••
• When monitoring with two displays, do not turn off either display.
••
Otherwise some monitored beds cannot be monitored.
CAUTION
••
• Follow the specified procedure to turn off the central monitor.
••
Otherwise, patient data will be deleted and data in the hard disk and
the hard disk itself may be damaged.
••
• After turning the power on, confirm that there is a test sound from
••
the built-in speaker of the display.
Discharge and Receiving
Channel Change
WARNING
••
• Check that the channel number of the appropriate transmitter is
••
displayed on the central monitor screen. Otherwise data of a
different patient will be monitored or no signal will be received by the
central monitor.
••
• Do not use the same channel for different patients. Otherwise two
••
patients’ data will be lost due to mutual modulation interference or
another patient’s data may appear on the monitor screen.
CAUTION
••
• When admitting a new patient, first delete all data of the previous
••
patient. Otherwise, the data of the previous patient and new patient
will be mixed together and cause misunderstanding of the patient
history.
••
• When you change the receiving channel to monitor a new patient,
••
first delete all data of the previous patient. Otherwise, the data of the
previous patient and new patient will be mixed together and cause
misunderstanding of the patient history.
1.8 Service Manual CNS-9701
Temporary Discharge
Patient Transfer
1. GENERAL
WARNING
When a temporarily discharged patient comes back, resume
monitoring for the patient. During temporary discharge, there is no
display of measurement values, alarm function and data saving.
CAUTION
••
• Keep the original bedside monitor and the destination bedside
••
monitor power on and connected to the network until the transfer
completes. Otherwise transfer fails and the data is lost. After
transfer, confirm that the data was correctly transferred to the
destination bedside monitor.
••
• When the patient is transferred more than once between different
••
central monitors in the network, the data saved on the original
central monitor is deleted.
Alarm
WARNING
••
• When the Alarm Suspend key on the transmitter is pressed, all alarm
••
functions for the patient are suspended.
••
• Even if the alarm is set to ON, there is no arrhythmia alarm when
••
arrhythmia analysis is turned OFF at the bedside monitor and/or
central monitor.
••
• Before you start monitoring a new patient, confirm alarm settings.
••
Alarm settings return to Alarm Master 1 settings when a bed is
discharged or a receiving channel is changed.
••
• Securely connect the sound cable. There is no sound if the cable
••
comes off.
CAUTION
••
• When the upper or lower alarm limit is set to OFF, there will be no
••
upper or lower alarm for that limit. When it is set to OFF, frequently
observe the patient.
••
• Alarm does not occur for an arrhythmia whose alarm is set to OFF.
••
There is no indication that the alarm is set to OFF. Be careful when
you set the alarm to OFF.
Service Manual CNS-9701 1.9
1. GENERAL
ECG Monitoring
CAUTION
••
• If there is any doubt about the arrhythmia analysis, make the central
••
monitor relearn the patient’s VPC. Otherwise, an important
arrhythmia may be overlooked.
••
• The central monitor does not perform ECG analysis. Therefore, the
••
QRS sound at the central monitor may not synchronize with patient’s
actual QRS when complicated arrhythmias occur or during pacing.
••
• The ST level transmitted from a transmitter is not designed to be
••
accurate enough for diagnosis. Do not rely on the ST level displayed
on the central monitor.
••
• The QRS sound at the central monitor has a delay of approximately
••
several seconds because of network connection.
••
• When the full disclosure waveform is expanded to actual size, it may
••
be distorted because it has been compressed then expanded. When
reading the expanded ECG waveforms, be aware of this distortion.
••
• Turn the pacing detection to ON when monitoring a pacemaker
••
patient. Otherwise QRS and pacemaker spike may not be
distinguished and pacemaker failure may not be recognized.
NIBP Measurement
WARNING
••
• When performing long term measurements at intervals less than 2.5
••
minutes, periodically check the state of the patient, blood vessels
and limb for adequate circulation. Congestion may occur at the
measurement site.
••
• When performing periodic measurements for a long term,
••
periodically check the circulation condition.
CAUTION
Before you remotely start and stop NIBP measurement from the central
monitor, confirm the state of the patient at the bedside monitor.
Carefully start and stop NIBP measurement from the central monitor.
1.10 Service Manual CNS-9701
Maintenance
1. GENERAL
CAUTION
••
• Before maintenance (inspection, cleaning, disinfection), turn the
••
central monitor power off and disconnect the power cord from the
AC outlet. Otherwise the operator may receive electrical shock or the
central monitor may malfunction.
••
• Do not disassemble or repair the central monitor. Disassembly and
••
repair must be performed by qualified service personnel.
••
• Software upgrade must only be done by qualified service personnel
••
or a person with technical knowledge. If upgrade is not done
correctly, the central monitor may freeze.
••
• Do the regular inspection according to the cycle specified by Nihon
••
Kohden. Otherwise, deterioration and loss of function are
overlooked and it results in incorrect monitoring.
••
• Restart the central monitor once every three months. Otherwise the
••
operation becomes unstable and monitoring may stop. During
restarting, patients monitored by the central monitor must be
monitored by another instrument.
••
• Replace the hard disk once every two years. If the hard disk gets
••
damaged, monitoring is incorrect and all data saved in the central
monitor is lost.
For the VL-971R/RK LCD unit
••
• Follow your hospital regulations to handle blood or bodily fluids on
••
the display.
••
• Be careful not to let any liquid get inside the display.
••
Service Manual CNS-9701 1.11
1. GENERAL
Specification
Display
Waveform Display Items
Number of patients on the display 16 patients max
With overview bed function, 16 patients plus
one other patient.
Number of transmitters 16 transmitters max
Display type 18 inch color TFT
Waveform display method Non-fade, fixed method
Number of waveform traces Single display: 24 traces max (On the All
Beds screen, displaying 12
patients)
Dual display: 32 traces max (On the All
Beds screen, displaying 16
patients)
Sweep speed 25 mm/s, 50 mm/s, 6.25 mm/s (respiration
measurement)
Sweep time All Beds screen (8 patients): 4.48 s
All Beds screen (4 patients): 11.56 s
Individual Bed screen: 10.28 s
ECG1 - 12, IBP (1- 8), respiration wave, EEG, CO2, external input, pulse (SpO2),
Flow/Paw, anesthetic gas (O2, CO2, N2O, Agent), others depending on the
connected bedside monitor or transmitter
Alphanumeric Display
Items
Sound
Alarm Function
Heart rate, VPC rate, respiration rate, pulse rate, IBP (systolic, diastolic, mean),
NIBP (systolic, diastolic, mean), temperature or ∆T or blood temperature, EtCO2,
tcPO2, tcPCO2, SpO2, ST level, FiO2, CO, CCO, respirator, anesthetic gas, BIS,
Sv_O2, Flow/Paw, N2O, O2, agent, others depending on the connected bedside
monitor or transmitter
Synchronization source ECG
Alarm sound Crisis, Warning, Advisory
Sound volume changeable for Heart rate sync mark and sound
Alarm decision is done at each bedside monitor and multiple patient receiver. The
central monitor only displays the alarm and generates sound by receiving the alarm
information from bedside monitors and multiple patient receivers.
Alarm type Crisis, Warning, Advisory
Alarm items Vital Sign: Heart rate, VPC rate, Respiration rate, Pulse
rate, ST level, BP (sys, dia, mean), NIBP (sys,
dia, mean), temperature or ∆T or blood
temperature, EtCO2, tcPO2, tcPCO2, SpO2, FiO2,
CCO, others depending on the connected
bedside monitor or transmitter
1.12 Service Manual CNS-9701
1. GENERAL
Arrhythmia: ASYSTOLE, V FIB, V TACHY, EXT TACHY,
EXT BRADY, VPC RUN, COUPLET, MULTI
FORM, EARLY VPC, BIGEMINY, TACHY,
BRADY, PROLONGED RR, FREQ. VPC
Apnea
Alarm display Highlighted numeric display, highlighted message for
arrhythmia
Alarm occurrence Alarm occurs when any one of the bedside monitors that the
central monitor are monitoring generates alarm.
Alarm suspend Available (for beds connected via the QI-910R interface)
Alarm silence Available (except for beds connected via the QI-910R
interface)
Alarm recording Available
Trend
Waveform Sensitivity
Overview
Trend parameters Depends on the connected bedside monitor or
transmitter
Trend display times 1, 8, 24, 72 h
Trend display formats Trendgraph and tabular trend
Events related to trendgraph ASYSTOLE, V FIB, V TACHY, VPC RUN,
COUPLET, Off/Noise
ECG display sensitivity ×1/4, ×1/2, ×3/4, ×1, ×1.5, ×2, ×4
Respiration curve sensitivity ×1/4, ×1/2, ×3/4, ×1, ×1.5, ×2, ×4
BP display scale (mmHg) 0-20, 0-50, 0-100, 0-200, 50-200, 50-250, 0-300
mmHg
Displays user-selectable vital signs, up to 12 ECG waveforms, trend data, alarm
events, and status messages associated with the selected overview bed.
The overview bed can be any bed in the network that the central monitor is not
continuously monitoring.
Remote Setting
Full Disclosure
File Saving
Service Manual CNS-9701 1.13
Alarm setting of bedside monitors and multiple patient receivers
Individual setting of bedside monitors and multiple patient receivers
Channel setting of multiple patient receivers
Saves 72 hours of full disclosure waveform data for up to six waveforms and
displays them on the Full Disclosure window.
(When the QP-973P Full Disclosure Filing Program Kit is installed.)
Trend
Arrythmia recall file
Hemodynamic data list
ST recall
1. GENERAL
Full disclosure data (only when the QP-973P Full Disclosure Filing Program Kit is
installed.)
ECG 12Lead analysis result filing (only when the QP-974P 12 Lead ECG
Interpretation Filing Program Kit is installed.)
Caliper data
2-ch recorder, WS-971R
(option)
Laser Printer (local
purchase)
Recording method Thermal array recording
Number of channels 2
Recording paper 50 mm width (FQW50-3-100)
Paper speed 25 mm/s
Printed items Patient information, date and time, waveform and
measurement data, record type, paper speed
Record type
Manual recording: Delayed waveform recording, Freeze recording, Dual
delayed waveform recording, Dual delayed waveform
freeze recording, Arrhythmia recall recording, ST recall
recording, Expanded full disclosure waveform
recording
Automatic recording: Periodic recording, Alarm recording
Call recording
Remote delayed waveform recording
Paper size A4/Letter
Record type
Manual recording: Multi-Wave printing, Multi-Wave Freeze printing, ECG
12 Lead printing, Trendgraph printing, Tabular Trend
printing, Arrhythmia Recall recording, Hemodynamics
List printing, ST Recall recording (ST recall files with
printing mark), Full Disclosure Waveform printing,
Expanded Full Disclosure Waveform printing, ECG 12
Lead Analysis Result printing, Report printing
Power Requirements
1.14 Service Manual CNS-9701
MU-971RA/RJ/RK Main Unit
Line voltage AC 100 to 240 V ± 10%
Line frequency 50 or 60 Hz
Power consumption AC 230VA or less
VL-971R/RK LCD Unit
Line voltage AC 100 to 240 V ± 10%
Line frequency 50 or 60 Hz
Power consumption AC 150VA or less
Loading...