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.
CA UTION
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.
Service Manual BSM-9510i
Explanations of the Symbols in this Manual and Instrument
The following symbols found in this manual/instrument bear the respective descriptions as given.
On panels
SymbolDescriptionSymbolDescription
Standby lamp
“On” only for a part of
equipment
“Off” only for a part of
equipment
Alternating current
Equipotential terminal
Attention, consult operator’s
manual
Alarm off/suspend
IPX4
IPX7
Type BF applied part
Splash-proof equipment
Watertight equipment
Year of manufacture
Serial number
Fuse
High voltage
Output terminal
Defibrillation-proof
type CF applied part
Type CF applied part
Defibrillation-proof
type BF applied part
Protective earth
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.
This service manual provides useful information to qualified personnel to
understand, troubleshoot, service, maintain and repair the BSM-9510J/K Bedside
Monitor (referred to as “the instrument” in this service manual).
All replaceable parts or units of this instrument are clearly listed with
exploded illustration to help you locate the parts quickly.
The “Maintenance” section in this service manual 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 instrument. This is because service personnel need to understand the
operation of the instrument in order to effectively use the information in the
service manual.
Service Manual BSM-95101.1
1. GENERAL
General Information on Servicing
Note the following information when servicing the instrument.
Safety
••
•There is the possibility that the outside surface of the instrument,
••
such as the operation keys, could be contaminated by contagious
germs, so disinfect and clean the instrument before ser vicing it. When
servicing the instrument, wear rubber gloves to protect yourself from
infection.
••
•There is the possibility that when the lithium battery is broken, a
••
solvent inside the lithium battery could flow out or a toxic substance
inside it could come out. If the solvent or toxic substance touches your
skin or gets into your eye or mouth, immediately wash it with a lot of
water and see a physician.
CAUTIONS
Liquid ingress
The instrument is not drip-proof, so do not install the instrument
where water or liquid can get into or fall on the instrument. If liquid
accidentally gets into the instrument or the instrument accidentally
drops into liquid, disassemble the instrument, clean it with clean water
and dry it completely. After reassembling, verify that there is nothing
wrong with the patient safety checks and function/performance checks.
If there is something wrong with the instrument, contact your Nihon
Kohden representative to repair .
Environmental Safeguar ds
Depending on the local laws in your community, it may be illegal
to dispose of the lithium battery and CRT unit in the regular waste
collection. Check with your local officials for proper disposal
procedures.
Disinfection and cleaning
T o disinfect the outside surface of the instrument, 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
instrument.
- Chlorohexidine gluconate solution:0.5%
- Benzethonium chloride solution:0.2%
- Glutaraldehyde solution:2.0%
- Benzalkonium chloride:0.2%
- Hydrochloric alkyl diaminoethylglycine:0.5%
1.2Service Manual BSM-9510
1. GENERAL
Transport
••
• Use the specified shipment container and packing material to
••
transport the instrument. If necessary, double pack the instrument.
Also, put the instrument into the shipment container after packing so
that the buffer material does not get into the inside of the instrument.
••
• When transporting the board or unit of the instrument, be sure to use
••
a conductive bag. Never use an aluminum bag when transporting the
power board, power unit or board on which a lithium battery is
mounted. Also, never use a styrene foam or plastic bag which
generates static electricity to wrap the board or unit of the instrument.
Handling the instrument
••
• Because the outside surface of the instrument is made of resin, the
••
outside surface of the instrument is easily damaged. So when handling
the instrument, remove clutter from around the instrument and be
careful to not damage the instrument or get it dirty .
••
• Because most of the boards in the instrument are multilayer boards
••
with surface mounted electrical devices (SMD), when removing and
soldering the electrical devices, a special tool is required. 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.
Service Manual BSM-95101.3
1. GENERAL
Service Policy, Service Pa rts and Patient Safety Checks
Service PolicyOur technical service policy for this instrument 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 mounted 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 mounted electrical devices.
Disassemble the instrument or replace a board or unit in an environment where the
instrument is protected against static electricity.
As background knowledge for repair, pay special attention to the following:
• You can reduce the repair time by considering the problem before starting repair.
• You can cla rify the source of most of the troubles using the information from the
diagnostic check function of the instrument. Refer to “Diagnostic Check “ of
this manual.
Service Parts
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 promptl y attend
to your needs. Always use parts and accessories recommended or
supplied by Nihon Kohden Corporation to assure maximum
performance from your instrument.
1.4Service Manual BSM-9510
1. GENERAL
Patient Safety ChecksPeriodic maintenance procedures and diagnostic check procedures are
provided in this manual to ensure that the instrument is operating in
accordance with its design and production specifications. To verify that the
instrument is working in a safe manner with regard to patient safety, patient
safety checks should be performed on the instrument before it is first installed,
periodically after installation, and after any repair is made on the instrument.
For patient safety checks, perform the following checks as described in the
International Electrotechnical Commission’s standard, IEC60601-1 (1988):
• Protective earth resistance check
• Earth leakage current check
• Enclosure leakage current check
• Patient leakage current check
• Withstanding voltage check
Service Manual BSM-95101.5
1. GENERAL
Composition
Bedside Monitor Main Unit
MU-950RJ/RK
Main unit
CD-219P
UR-3510
UR-3486
UR-3511
Chassis Unit
MAIN & EXT JA Board
UR-3485MAIN Board
UR-3489
JA Motherboard
IR DETECT & LCD JUNC Board
UR-3487
UR-3504
EXT JA Board
IR DETECT Board
LCD JUNC Board
UR-3393
UR-3506
SC-036R
YS-022R4
YS-022R5
LED Board
OPERA TION Board
Power Supply Unit
MU-950RJ Panel
MU-950RK Panel
1.6Service Manual BSM-9510
Specifications
Bedside Monitor Main Unit, MU-950RJ/RK
For other details, refer to the specifications of the respective module and unit.
Sound
Sound type:Alarm, synchronization, click
Alarm sound:Volume variable
Synchronization sound:Volume variable, pitch variable for SpO2 or BP
Click sound:Volume variable
Analysis method:Multi-template matching method
No. of channels:2 channels
VPC counting range: 0 to 99 beats/min
Arrhythmia analysis:ASYSTOLE, V FIB, Vf/VT, V T ACHY , VPC RUN, COUPLET , EARL Y
V, BIGEMINY, FREQ VPC, T ACH Y , BRAD Y, PROLONGED RR
• Arrhythmia recall
Number of recall files:32
Storage time per file:8 s
Counting range:0 to 150 breaths/min
Apnea setting range:5 to 40 s (set on the main unit)
• Defibrillation proof:Respiration input protected against 400 J discharge
• Waveform display
Display sensitivity:10 mm/Ω (at × 1 sensitivity)
Sensitivity control:×1/4, ×1/2, ×1, ×2, ×4 or A UT O
• Respiration rate display update cycle:Every 3 s or when alarm is generated
• Alarm
Upper limit range:2 to 150 breaths/min in 2 breaths/min steps, OFF
Lower limit range:OFF, 0 to 148 breaths/min in 2 breaths/min steps
Apnea time:5 to 40 s in 5 s steps, OFF
SpO2 and Pulse W ave (Arterial Pleth ysmographic Wavef orm)
With Nihon Kohden probe
• Measuring range
SpO2:1 to 100% SpO2 in 1% SpO2 steps
Pulse rate:30 to 300 beats/min
• SpO
accuracy
2
• SpO
display
2
80 to 100% SpO2:±2% SpO
50 to 79% SpO2:±3% SpO
Pulse rate display update cycle:Every 3 s or when alarm is generated
Sync tone modulation:Changes in 20 steps at 81 to 100% SpO
2
2
2
• Alarm
Upper limit range:OFF , 51 to 100% SpO2 in 1% SpO2 steps
Lower limit range:OFF, 50 to 99% SpO2 in 1% SpO2 steps
Service Manual BSM-95101.9
1. GENERAL
Non-invasive Blood Pressure, NIBP
• Measuring method:Oscillometric
• Cuff pressure display range:0 to 300 mmHg (0 to 40 kPa)
• Accuracy
0 to 200 mmHg: ±3 mmHg
200 to 300 mmHg: ±4 mmHg
• Safety
Maximum pressurization value cuff inflation limiter:Adult 300 mmHg
Neonate 150 mmHg
Cuff inflation time limiter:Adult 150 s
Neonate 80 s
• Measurement mode:Manual (Single measurement)
Continuous (Successive repetition or at 1 min interval for 15 min
period)
Periodic (In OR mode at 2, 2.5, 5, 10, 15, 30 min interval)
(In ICU mode at 5, 10, 15, 30 min, 1, 2, 4, 8 h interval)
• NIBP data display update cycle:Updated every measurement
• Measurement end sound:Generated when measurement ends (Set on the System Setup screen)
• Alarm (Systolic, Diastolic, Mean)
Upper limit range:22 to 250 mmHg in 2 mmHg steps, OFF
Lower limit range:OFF, 20 to 248 mmHg in 2 mmHg steps
• Frequency response:DC to 10/20 Hz, set on the main unit (Digital filter processing by
software)
• Blood pressure display range:0 to 300 mmHg
• Display update cycle:Every 3 s or when alarm is generated
• BP tone:Provided, systolic value 20 to 120 mmHg, changes in 20 steps every
5 mmHg
1.10Service Manual BSM-9510
• Alarm (Systolic, Diastolic, Mean)
Upper limit range: 2 to 300 mmHg in 2 mmHg steps, OFF
Lower limit range:OFF , 0 to 298 mmHg in 2 mmHg steps
Temperature
• Measuring range:0 to 45°C (32 to 113°F)
• Measuring accuracy
Sensor:±0.1°C
Module:±0.1°C (25 to 45°C, 77 to 113°F)
±0.2°C (Other range)
• Noise:≤ 0.014°C at 37°C (99°F)
• Temperature drift:±0.005°C/°C
• Temperature display
Display range:0 to 45°C (32 to 113°F)
Display update cycle:Every 3 s
• Alarm
1. GENERAL
Upper limit range:0.1 to 45°C (33 to 113°F) in 0.1°C (0.5°F) steps, OFF
Lower limit range:OFF, 0 to 44.9°C (32 to 112°F) in 0.1°C (0.5°F) steps
Cardiac Output, CO
• Measuring method: Thermodilution method
• Measuring range
Injectate temperature (Ti):0 to 27°C (32 to 81°F)
Blood temperature (Tb):15 to 45°C (59 to 113°F)
Thermodilution curve (∆ Tb):0 to 2.5°C (32 to 36.5°F)
Cardiac output (CO):0.5 to 20 L/min
• Measuring accuracy (catheter sensor accuracy is not included)
Ti:±0.1°C
Tb 25 to 45°C:±0.1°C
Tb 15 to 25°C:±0.2°C
CO:±5%
• Noise
Ti:≤ 0.025°C
Tb:≤ 0.016°C at 37°C (99°F)
∆Tb:≤ 0.005°C at 37°C (99°F)
• Temperature drift
Ti:±0.005°C/°C
Tb:±0.005°C/°C
• Frequency response (∆Tb):0 to 3 Hz (Digital filter processing)
• Catheter size:5F , 7F or 7.5F
• Injectate volume range:3, 5, 10 cc
• Cardiac output display
CO value display update cycle:Every measurement
Thermodilution curve display time:45 s
Service Manual BSM-95101.11
1. GENERAL
• Alarm limits
CO:None
Blood temperature:15 to 45°C in 0.1°C steps, OFF
Respiration (Thermistor probe pneumography)
• Respiration rate counting range:0 to 150 resp/min
Apnea, 5 to 40 s
• Accuracy:±1 resp/min
• Temperature measuring range:10 to 40°C (50 to 104°F)
• Maximum detection resistance range:1 kΩ
• Recorder sensitivity:∆100 Ω/400 digits ±10%
(400 digits is equivalent to 1 cm on paper at ×1 recorder sensitivity)
• Noise:≤1.0 Ω (referred to input)
• Frequency response:0.1 to 3 Hz (Digital filter processing)
• Waveform display
Display sensitivity:10 mm/100 Ω (at ×1 sensitivity)
Sensitivity control:×1/4, ×1/2, ×1, ×2, ×4 or A UT O
• Respiration rate display update cycle:Every 3 s or when alarm is generated
• Alarm
Upper limit range:2 to 150 breaths/min in 2 breaths/min steps, OFF
Lower limit range:OFF, 0 to 148 breaths/min in 2 breaths/min steps
Apnea time:5 to 40 s in 5 s steps, OFF
Inspired Oxygen Fractional Concentration, FiO
• Measuring range:10 to 100% O
2
in 1% steps
2
• Amplifier accuracy : ±1% full scale
• Accuracy including sensor
21% O2 calibration:±3% full scale
100% O2 calibration:±2% full scale
• Noise:≤ 0.12% O
• T emperature drift:±0.12% O
• FiO
display update cycle:Every 3 s or when alarm is generated
2
2
2
/°C
• Alarm
Lower limit range:OFF , 18 to 100% in 1% steps, OFF
Expired Carbon Dioxide Tension, CO
2
• Measurement method:Main stream method
• Measuring range:0 to 76 mmHg
• Warm-up time:Main stream method: none
• Response time:200 ms (typ.) for step from 10 to 90%
1.12Service Manual BSM-9510
• Detectable respiration rate:Main stream: 3 to 60 breaths/min
• Measuring accuracy (When 1 atmospheric pressure, air inspiration, non condensation)
0 to 40 mmHg:±4 mmHg
41 to 76 mmHg:±10% reading
O2 gas effects: Approx. −10% reading (When 100% oxygen is inspired)
CO2 gas, N2O anesthetic gas effects: Effects when 1 mmHg CO2 gas is inspired, approx. 10% reading
Accuracy in using N2O anesthetic gas is not guaranteed
• CO
value display update cycle:Every 3 s or when alarm is generated
2
• Alarm
EtCO2 upper limit range:2 to 99 mmHg in 1 mmHg steps, OFF
EtCO2 lower limit range:OFF , 1 to 98 mmHg in 1 mmHg steps, O FF
Apnea time:5 to 40 s in 5 s steps, OFF
ECG/BP Output
• Output impedance
1. GENERAL
ECG:100 Ω
BP:100 Ω
• Output waveform
ECG:≥ ±4.096 V (at 1 mV/V)
BP:−0.64 to +4.48 V (at 100 mmHg/V)
HT:Open collector output (Maximum sink current 3 mA, pulse width 100
• Frequency response
ECG:DC to ≥35 Hz
BP:DC to ≥15 Hz
• Sensitivity accuracy
ECG:±5%
BP:±1%
• Delay
ECG:≤ 35 ms
BP:≤ 35 ms
HT:≤ 100 ms
ms)
Multi Parameter Module, AY-910PA
Same as AY-900PA Multi Parameter Module, except for SpO2.
SpO2 and Pulse W ave (Arterial Pleth ysmographic Wavef orm)
With Nellcor probe
• Measuring range
SpO2:1 to 100% SpO2 in 1% SpO2 steps
Pulse rate:20 to 250 beats/min
• SpO
accuracy
2
70 to 100% SpO2:±2% SpO
Service Manual BSM-95101.13
2
1. GENERAL
• SpO
display
2
Display update cycle:Every 3 s or when alarm is generated
Sync tone modulation:Changes in 20 steps at 81 to 100%
• Alarm
Upper limit range:OFF, 51 to 100% in 1% steps
Lower limit range:OFF, 50 to 99% in 1% steps
Recorder Module, WS-920PA
• Recorder
Recording method:Thermal array recording
Number of channels:2 channels (maximum)
Maximum recording width:≥ 45 mm
Paper speed:5, 25 or 50 mm/s, ±2%
Recording paper:FQW50-3-100
Po wer Requirement
Line voltage:MU-950RJ: AC 100 to 127 V ±10%
Line frequency:50 or 60 Hz
Power consumption:120 VA maximum, including the color display unit
En vir onment for All Units and Modules
• Operating environment
Temper ature:10 to 40°C (50 to 104°F) excluding recording paper
Humidity:30 to 90% RH (0 to 40°C, 32 to 104°F non-condensing)
Atmospheric pressure:70 to 106 kPa
• Storage environment
Temper ature:−20 to 65°C (−4 to 149°F) excluding recording paper
Humidity:15 to 90% RH (non-condensing)
Atmospheric pressure:70 to 106 kPa
MU-950RK: AC 220 to 240 V ±10%
Recording paper: −15 to 55°C (5 to 131°F)
Dimensions and Weight (Approximate)
MU-950RJ/RK Main Unit:345 W × 300 H × 205 D, 6.5 kg
AY-900PA/910PA Multi Parameter Module:
113 W × 117 H × 160 D, 1.5 kg
AA-900PA Smart Module:37 W × 117 H × 160 D, 0.4 kg
RY-002PA Remote Control:50 W × 22 H × 162 D, 0.09kg
WS-920PA Recorder Module:113 W × 117 H × 160 D, 0.9 kg
EK-900P Blank Module:37 W × 117 H × 160 D, 0.17 kg
1.14Service Manual BSM-9510
Electromagnetic Compatibility
IEC 60601-1-2 (1993)
Safety Standard
Safety Standard:IEC 60601-1 (1988)
According to the type of protection against electrical shock:
According to the degree of protection against electrical shock:
AY-900PA/910PA: Defibrillator-proof type CF applied part: ECG, Resp (impedance),
AA-900PA:Defibrillator-proof type CF applied part: IBP, Temp, Resp
According to the degree of protection against harmful ingress of water:
According to the degree of safety of application in the presence of a FLAMMABLE ANAESTHETIC
MIXTURE WITH AIR, OR OXYGEN OR NITR OUS OXIDE:
According to the mode of operation:
1. GENERAL
IEC 60601-1 (1991) Amendment 1
IEC 60601-1 (1995) Amendment 2
IEC 60601-1-1 (1992)
IEC 60601-1-1 (1995) Amendment 1
IEC 60601-2-27 (1994) Particular requirements for the safety of
electrocardiographic monitoring
IEC 60601-2-30 (1995) Particular requirements for the safety of
automatic cycling in direct blood pressure monitoring equipment
IEC 60601-2-34 (1994) Particular requirements for the safety of
direct blood pressure monitoring equipment
CLASS I EQUIPMENT
SpO2, NIBP, IBP, Temp, Resp (thermistor), FiO
2
CF applied part: CO
BF applied part: CO2 (main stream)
(thermistor), FiO
2
CF applied part: CO
BF applied part: CO2 (main stream)
IPX0 (Ordinary EQUIPMENT)
EQUIPMENT not suitable for use in the presence of FLAMMABLE
ANAESTHETIC MIXTURE WITH AIR, OR WITH OXYGEN OR
NITROUS OXIDE
CONTINUOUS OPERA TION
Service Manual BSM-95101.15
1. GENERAL
Panel Description
Control Panel
SILENCE
ALARMS
SILENCE ALARMS key
Silences the alarm sound.
NIBP
MENU
HELP
INTERVAL
START/STOP
NIBP INTERVAL key
Selects NIBP measurement mode. Pressing this key changes the mode.
NIBP START/STOP key
Starts NIBP measurement in the selected mode.
Pressing the key during measurement stops measurement.
MENU key
Opens the Main menu window.
, , , keys
Center key
Selects the items and menus on the screen and
performs various operations.
HELP key
Displays help on the screen.
Not available in this version.
1.16Service Manual BSM-9510
Remote Control
1. GENERAL
Power button
When the main power switch on
the rear panel is on, press this
button to turn the monitor
power on.
MENU key
Opens the Main menu
window.
MENU
SILENCE
ALARMS
Selection knob
Move this knob up/down/left/right and
press to select items and menus on the
screen.
SILENCE ALARMS key
Silences the alarm sound.
Numerical keys
For entering numbers and performing
shortcut key operations.
Monitor selection dial
Selects the monitor.
Loop
Attach a string or strap to hang the remote control.
Service Manual BSM-95101.17
1. GENERAL
Main Unit
Front Panel
Alarm indicator
Blinks or lights when an
alarm is activated.
Remote control
sensor
Receives signal from
the remote control.
Always keep it clean.
Remote control channel label
Corresponds to the monitor selection
dial on the remote control.
SILENCE
ALARMS
INTERVAL
NIBP
START/STOP
MENU
HELP
Front power switch
When the main power switch on the
rear panel is on, press this switch to
turn the monitor power on.
Press and hold the front power switch
for more than 1 second to turn the
power off.
Power lamp
Lights when the main
power switch on the
rear panel and the front
power switch on the
front panel are on.
Control panel
Main power lamp
Lights when the main power switch
on the rear panel is on.
1.18Service Manual BSM-9510
Left Side Panel
1. GENERAL
Memory card slot
For a memory card for upgrading the monitor software.
Do not eject the memory card or turn off the monitor while the
memory card lamp is lit. This may damage the memory card
and stored data.
Only use the specified memory card.
Only use the AY-900PA/910PA multi parameter module,
AA-900PA smart module, AG-900PA CO
WA-920PA recorder module and EK-900P blank module.
module,
2
Module connectors
Connect to the sockets on the module.
CAUTION
Do not open the connectors.
Otherwise you may receive
electrical current or the monitor
Slots
For the modules.
Insert EK-900P blank modules
in empty slots to prevent dust from
accumulating on the connectors.
may be damaged.
Refer to the cautions in "Connecting the System" in
Section 3.
JA output socket ( )
Connects to an input box or unit using the JA connection cable.
Not available in this version.
NOTE
Cover the socket when not in use to prevent dust from
getting inside the monitor.
Service Manual BSM-95101.19
1. GENERAL
Rear Panel
Main power switch
Turns the main power on or off.
Equipotential terminal
Connects to the equipotential ground cable.
SERIAL socket
Connects to a PC.
Not available in this version.
ALARM socket
Connects to the optional alarm pole.
Power socket
Connects to a wall outlet using the
power cord to supply AC to the
monitor.
Refer to the cautions in "Connecting
the Power Cord and Grounding
the Monitor" in Section 3.
NETWORK socket
Connects to the 10 BASE-T cable of the network.
Not available in this version.
NOTE
Do not touch the NETWORK socket when you have static
electricity on your hand.
Cover the NETWORK socket when not in use.
1.20Service Manual BSM-9510
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