This manual provides detailed information about the assembling, disassembling, 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.
Refer to the Accutorr V Operating Instructions: P/N 0070-00-0699-XX for information for
operating this instrument.
This manual is based on the maximum configuration. Therefore, some contents may not be
applicable. For questions, contact Service.
This manual is for biomedical engineers, authorized technicians, or service representatives
responsible for troubleshooting, repairing, and maintaining the monitors.
Contents of this manual are subject to change without prior notice.
A password is required to access the service mode. The service password is 321.
The Accutorr V configurations are:
• Accutorr V with Nellcor® Pulse Oximetry—
includes NIBP, Nellcor SpO
• Accutorr V with Nellcor
includes NIBP, Nellcor SpO
a Trend Display, and Recorder
2,
®
Pulse Oximetry and SmarTemp™—
SmarTemp, a Trend Display, and Recorder
2,
• Accutorr V with Masimo SET® Pulse Oximetry—
includes NIBP, Masimo SpO2, a Trend Display, and Recorder
• Accutorr V with Masimo SET® Pulse Oximetry and SmarTemp™—
includes NIBP, Masimo SpO2, SmarTemp, a LCD, and Recorder
• Accutorr V with DPM Pulse Oximetry—
includes NIBP, DPM SpO2, a Liquid Crystal Display (LCD), and Recorder
• Accutorr V with DPM Pulse Oximetry and SmarTemp™—
includes NIBP, DPM SpO
SmarTemp, a Liquid Crystal Display (LCD), and Recorder
2,
• Accutorr V with DPM NIBP and SmarTemp™—
includes NIBP, SmarTemp, a Trend Display, and Recorder
• Accutorr V with DPM NIBPonly—
includes NIBP, a LCD, and Recorder
All Accutorr V configurations can be upgraded with a barcode scanner.
Masimo Patents: This device (MASIMO SpO2 Module) is covered under one or more of the
following U.S. Patents 5,758,644, 5,823,950, 6,011,986, 6,157,850, 6,263,222,
6,501,975, and other applicable patents listed at: www.masimo.com/patents.htm.
Possession or purchase of this device does not convey any express or implied license to use
the device with replacement parts which would, alone, or in combination with this device,
fall within the scope of one or more of the patents relating to this device.
Accutorr V Service Manual0070-10-0702v
IntroductionPreface
Nellcor Patents: This device (Nellcor SpO2 Module) is covered under one or more of the
following U.S. Patents Patent No. 5,485,847, 5,676,141, 5,743,263, 6,035,223,
6,226,539, 6,411,833, 6,463,310, 6,591,123, 6,708,049, 7,016,715, 7,039,538,
7,120,479, 7,120,480, 7,142,142, 7,162,288, 7,190,985, 7,194,293, 7,209,774,
7,400,919, and 7,212,847. Possession or purchase of this device does not convey any
express or implied license to use the device with replacement parts which would, alone, or in
combination with this device, fall within the scope of one or more of the patents relating to
this device.
vi0070-10-0702Accutorr V Service Manual
Warnings, Cautions, and NotesIntroduction
Warnings, Cautions, and Notes
Read and adhere to all of the warnings and cautions listed throughout this manual.
A WARNING is provided to alert the user to potentially serious outcomes (death, injury or
serious adverse events) to the patient or the user.
A CAUTION is provided to alert the user that special care should be taken for the safe and
effective use of the device. They will include actions to be taken to avoid effects on patients
or users that will not be potentially life threatening or result in serious injury, but about which
the user should be aware.
A NOTE is provided when additional general information is available.
Warnings
WARNING: Internal Electrical Shock Hazard - This unit does not contain
any user-serviceable parts. Do not remove instrument
covers. Refer servicing to qualified personnel. When the
integrity of the protective earth conductor, in the installation
or its arrangement, is in doubt, the equipment should be
operated from its internal battery. Observe all CAUTION and
WARNING labels on the unit.
WARNING: Possible explosion hazard. Do not operate machine near
flammable anesthetic agents or other flammable
substances. Do not use flammable anesthetic agents (i.e.,
ether or cyclopropane.)
WARNING: Always place the unit on a flat, rigid surface or onto a
WARNING: To ensure proper performance and safety and to prevent
WARNING: Use only cuffs with approved quick connect type connectors.
WARNING: The Accutorr V is not intended for use in a magnetic
WARNING: Danger of explosion if battery is incorrectly replaced.
WARNING: Do not use a damaged or broken unit or accessory.
Mindray approved stable mounting bracket.
the voiding of the warranty, only use authorized parts and
accessories with the Accutorr V. Use of unauthorized
accessories may result in erroneous readings.
resonance imaging (MRI) environment and may interfere
with MRI procedures.
Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used
batteries according to the manufacturers instructions and
local regulations. Batteries used in this device may present a
risk of fire or chemical burn if mistreated. Do not incinerate
battery, possible explosion may occur.
WARNING: Operation of the Accutorr V below the minimum amplitude
or value of patient physiological signal may cause
inaccurate results.
Accutorr V Service Manual0070-10-0702vii
IntroductionCautions
WARNING: Use of accessories, transducers, and cables other than those
WARNING: Perform the decontamination or cleaning process with the
WARNING: Electrical safety tests are a proven means of verifying the
WARNING: Commercially available test equipment such as a safety
WARNING: Electrical safety tests should meet the requirements of the
WARNING: These electrical safety tests do not supersede local
WARNING: All devices using the AC mains and connected to medical
specified in the manual may result in increased
Electromagnetic Emissions or decreased Electromagnetic
Immunity of the Accutorr V. It can also cause delayed
recovery after the discharge of a cardiac defibrillator.
unit powered down and power cord removed.
electrical safety of the monitor. They are intended for
determining potential electrical hazards. Failure to identify
these hazards in a timely manner may cause personnel
injury.
analyzer can be used for electrical safety tests. Verify that
the test equipment can be safely and reliably used with the
monitor before use. The service personnel should acquaint
themselves with the use of the test equipment.
latest editions of EN 60601-1 and UL 60601.
requirements.
equipment within patient environments must meet the
requirements of the IEC 60601-1-1 medical electrical
systems standard and should be put under electrical safety
tests at the frequency recommended for the monitor.
Cautions
CAUTION:Observe extreme caution when a defibrillator is in use. Do
not touch any part of the patient, table, or monitor when a
defibrillator is in use. The Accutorr V should not be used
adjacent to or stacked with other equipment. If adjacent or
stacked use is necessary, the Accutorr V should be observed
to verify normal operation in the configuration in which it
will be used.
CAUTION:The unit should be checked periodically for obstructed vents.
CAUTION:At the end of their life, dispose of the Accutorr V,
CAUTION:When equipped with Nellcor
CAUTION:When equipped with MASIMO
If an obstruction is found, refer the unit to qualified service
personnel.
accessories, and single use supplies in accordance with local
regulations. Dispose of packaging waste in accordance with
local regulations.
®
oxygen transducers including Nellcor
dedicated adhesive sensors. Use of other oxygen
transducers may cause improper oximeter performance.
oxygen transducers including MASIMO LNOP
®
LNCS
patient dedicated adhesive sensors and MASIMO PC
Series Patient Cable. Use of other oxygen transducers may
cause improper Oximetry performance.
SpO2, use only Nellcor®
®
Oxisensor® patient
®
SpO2, use only MASIMO®
®
and MASIMO
viii0070-10-0702Accutorr V Service Manual
CautionsIntroduction
CAUTION:Inaccurate readings may be caused by incorrect sensor
CAUTION:Route cables neatly. Ensure cables, hoses, and wires are
CAUTION:When cleaning sensors, do not use excessive amounts of
CAUTION:Recharge the Lithium ion battery while in the unit at room
application or use; significant levels of dysfunctional
hemoglobins (i.e. carbohemoglobins or methemoglobin); or
intra-vascular dyes such as indocyanine green or methylene
blue; exposure to excessive illumination, such as surgical
lamps (especially ones with a Xenon light source), bilirubin
lamps, fluorescent lights, infrared heating lamps, or direct
sunlight; excessive patient movement; venous pulsations;
electro-surgical interference; and placement of a sensor on
an extremity that has a blood pressure cuff, arterial
catheter, or intra-vascular line.
kept away from patient’s neck to avoid strangulation. Keep
floors and walkways free of cables to reduce risk to
hospital personnel, patients, and visitors. If the sensor or
patient cable is damaged in any way, discontinue use
immediately.
liquid. Wipe the sensor surface with a soft cloth, dampened
with the cleaning solution. To prevent damage, do not soak
or immerse the sensor in any liquid solution. DO NOT
ATTEMPT TO STERILIZE.
temperature. If using the Accutorr V in a hot environment,
the Lithium ion battery may not charge when the unit is
connected to the AC mains.
CAUTION:Remove the battery if the Accutorr V is not used for an
extended period of time.
CAUTION:The Communications Connectors on the Accutorr V are only
for use with IEC 60601-1-1 compliant equipment.
CAUTION:Never place fluids on top of this monitor. If fluid spills on the
unit, wipe clean immediately and refer the unit to qualified
service personnel.
CAUTION:Before disassembling the monitor, eliminate static charges.
CAUTION:Properly connect the cables or wires when reassembling the
CAUTION:All tests should be performed by qualified personnel only.
CAUTION:Disconnect the monitor from the patient and make sure that
When disassembling the parts labeled with static-sensitive
symbols, wear electrostatic discharge protection such as
antistatic wristband or gloves. Follow the correct sequence
to disassemble the monitor. Otherwise, the monitor may be
damaged permanently. Disconnect all the cables before
disassembling any parts. Take care not to damage any
cables or connectors.
monitor to avoid short circuit. When assembling the
monitor, select proper screws. If the wrong size screw is
tightened by force, the monitor may be damaged and the
screw or the part may not function as expected.
important data is saved before upgrading the monitor.
CAUTION:Do not shut down or power off the equipment when
upgrading the bootstrap program. Otherwise, it may cause
the equipment to break down.
Accutorr V Service Manual0070-10-0702ix
IntroductionNotes
CAUTION:Program upgrades should be performed by qualified
service personnel only.
Notes
NOTE:The Accutorr V should be operated only by trained and
qualified personnel.
NOTE:Use disposable and single use accessories only once.
NOTE:Place the equipment in a location where the screen can
easily be seen and the operating controls can easily be
accessed.
NOTE:The instructions in this manual are based on the maximum
configuration.
NOTE:The optional Temperature module kit must be installed only
by trained personnel, and proper ESD prevention methods
must be followed.
NOTE:Only devices specified by Mindray DS USA, Inc.
Bio-Medical Electronics Co. , Ltd shall be connecte
NOTE:When
NOTE:Disconnect the Accutorr V from the mains to isolate it from
the RS-232 connector is used for DIAP, barcode power
must be set to OFF.
the mains power during an emergency.
/Shenzhen Mindray
d the RS-232 port.
x0070-10-0702Accutorr V Service Manual
Safety DesignationsIntroduction
Safety Designations
Safety designations per IEC 60601-1 Standard:
Type of protection against electric shockClass 1 with internal electric power source.
Where the integrity of the external protective
earth (ground) in the installation or its
conductors is in doubt, the equipment shall be
operated from its internal electric power
source.
Degree of protection against electric shockMonitor - Type B applied part.
NIBP - Type BF defibrillation protected
applied part.
SpO
- Type BF protected applied part.
2
Temp - Type BF protected applied part.
Supply Connection100 – 240 V
50/60 Hz
0.85 – 0.5 A
Mode of OperationContinuous
Protection Against Hazard of ExplosionNot Protected (Ordinary)
Protection Against Ingress of LiquidsIPX1
Degree of Electrical Connection Between
Equipment and Patient
Degree of MobilityPortable
Equipment designed for direct electrical and
non-electrical connection to the patient.
AC
Accutorr V Service Manual0070-10-0702xi
IntroductionProduct Limitations
Product Limitations
Non-invasive blood pressure (NIBP) accuracy depends on the application of the proper cuff
size. See Chapter 3.0 of the Operating Instructions for detailed information.
The Accutorr V will not operate effectively on patients who are experiencing convulsions or
tremors.
The Accutorr V is a portable device intended for intra-hospital use.
If the pressure cuff is not placed at the patient’s heart level, the NIBP measurement may be
subject to error, due to the hydrostatic effect.
The pulse rate data displayed on the Accutorr V is computed from the measurement of
peripheral pulses (peripheral pulses taken only during a measurement cycle). The rate
measured by the Accutorr V may differ from the rate of an ECG monitor. This is because the
ECG is an electrical signal that may not always result in a peripheral pulse.
Administration of certain vasoconstrictor drugs (for example, norepinephrine), may reduce
peripheral perfusion to a level that prevents the Accutorr V from taking pulse rate
measurements.
Arterial compression, tricuspid regurgitation, or other conditions may reduce perfusion to a
level that prevents the Accutorr V from taking pulse rate measurements.
The presence of arrhythmias may increase the time required to complete a measurement and
may extend this time so that a measurement cannot complete.
The Accutorr V is not intended for use during CPR. The monitor uses an oscillometric
technique based on normal peripheral circulation to compute blood pressure.
xii0070-10-0702Accutorr V Service Manual
UnpackingIntroduction
T1
Unpacking
Remove the instrument from the shipping carton and examine it for signs of shipping
damage. Save all packing materials, invoice, and bill of lading. These may be required to
process a claim with the carrier. Check all materials against the packing list. Contact the
Customer Service Department (800) 288-2121 or (201) 265-8800 for prompt assistance in
resolving shipping problems.
NOTE:The Accutorr V should only be shipped in its original
packing materials to avoid shipping damage.
Symbols and Descriptions
SYMBOLDESCRIPTIONSYMBOLDESCRIPTION
Attention, Consult
Accompanying Documents /
Refer to Manual
Equipotentiality
Equipotential grounding
Alternating Current (AC)Adult
Predictive Thermometer
Connector
Type BF Equipment
Defibrillator-proof Type BF
Equipment
Pediatric/Child
SpO
SpO
2
Accutorr V Service Manual0070-10-0702xiii
ConnectorNeonate
2
Electrical connectorsOperating on battery power
BatteryManufacturer
Connected to AC mains
NIBP Connector
Power On/Off – StandbyRecycle
Serial numberUp key
IntroductionSymbols and Descriptions
SYMBOLDESCRIPTIONSYMBOLDESCRIPTION
REF
Part NumberConfirm key
Patient Information keyDown key
Main menu keyDeflate Cuff key
Set alarms keyPatient Size key
Start NIBP keyAlarm Silence key
Display Tabular Trends/Pleth
Wav e
NIBP interval keySP1
NC1Nurse Call connector
RS-232 connector
(Serial Port 1)
Print key (front panel)CS1Network connector
Print key (recorder)
Alarm Silenced indicator on
LCD display
Alarm Disabled indicator on
LCD display
Audio Alarm Off indicator on
LCD display
Classified by Underwriters Laboratories Inc. with respect to electric shock, fire and
mechanical hazards, only in accordance with UL 60601-1, CAN/CSA C22.2
NO.601-1, IEC 60601-1-1, IEC 60601-2-30, IEC 60601-2-49.
The Accutorr V monitors the following patient vital signs: non-invasive blood pressure (NIBP),
pulse oxygen saturation (SpO2), pulse rate (PR), and temperature (Temp) for a single adult,
pediatric, or neonatal patient. Temperature is measured using the optional Temperature
Module.
1.2Controls and Indicators
For information on controls, connectors, and indicators, refer to the Accutorr V Operating
Instructions, Part Number 0070-10-0699-02.
1.3System Overview
FIGURE 1-1 shows the relationship of the Accutorr V monitoring system’s mechanical,
hardware, and software components.
FIGURE 1-2 shows the Accutorr V monitoring system’s PC board connections.
SYSTEM
MECHANICAL
MAIN UNIT
RECORDER
BATTERY
CHAMBER
TEMP
MODULE
CHAMBER
BARCODE
SCANNER
SUPPORT
HARDWARE
MAIN BOARD
POWER
BOARD
KEY &
DISPLAY
PAR AME TER
BOARDS
RECORDER
BOARD
BARCODE
SCANNER
SOFTWARE
FIGURE 1-1 System Mechanical, Hardware, and Software Overview
SYSTEM
SOFTWARE
PARAMETER
SOFTWARE
UPGRADE
SOFTWARE
PRINT
SOFTWARE
GATEWAY
SOFTWARE
1 - 20070-10-0702Accutorr V Service Manual
Theory of OperationSystem Overview
PARAMETER RECEPTACLE
J6
RECORDER
J2
J3
AC
INLET
J2
POWER
J4J5
FAN
J1
J6
BATTERY
J2J3J4J5
J1
J8J9
J7
P3P4
P5
KEY & DISPLAY
BOARD
P2
LCD
FIGURE 1-2 The System PCBA Connections
J1
SpO
2
J2
P2
ISOLATION
POWER BOARD
P1
MAIN BOARD
BDM
PORT
TEMP
ISOLATION
POWER BOARD
J10
SPEAKER
J2
NIBP
J4
J4
J3
J11 J12J13
NETWORK CONNECTOR
NURSE CALL
J2
RS232
Accutorr V Service Manual0070-10-07021 - 3
Hardware StructureTheory of Operation
1.4Hardware Structure
FIGURE 1-3 shows the Accutorr V’s Hardware Structure. The core of the system is the main
board, which supplies power for all parameter modules. The parameter modules directly
communicate with the main board. The the main board processes measurements and the
status of all modules, and displays them through the key and display board.
SpO
NIBP MODULE
MODULE
2
TEMP MODULE
ISOLATION
POWER BOARD
POWER BOARD
COMMUNICATIONS
/POWER SUPPLY
BATTERY
KEY &
DISPLAY
BOARD
LED &
KEY
LCD
POWER
SUPPLY
SPEAKER
COMMUNICATIONS
/POWER SUPPLY
RECORDER
ISOLATION
POWER BOARD
MAIN BOARD
FAN
ACCUTORR V
FIGURE 1-3 The Accutorr V’s Hardware Structure
NOTE:The SpO2 isolation power board does not apply to models
with DPM Pulse Oximetry.
ETHERNET
RS232
NURSE CALL
AC
1 - 40070-10-0702Accutorr V Service Manual
Theory of OperationHardware Structure
1.4.1Main Board
FIGURE 1-4 shows the main board, which provides resources and support for the overall
system. It controls the LCD, LED, keyboard, speaker, and recorder. It also communicates with
parameter modules and connectors. The main board also controls communication with the
speaker, the recorder, and all external connectors.
WATCHDOG
RTCE2 PROM
ETHERNET
NURSE CALL
SPEAKER
PHY RTL8201
CPU
AUDIO PROCESS
CIRCUIT
FLASHSDRAM
1.5V
LINEAR POWER
3.3VLCD
5.0V12VLEDKEY
SERIAL PORT 0
FPGA
RS232 IC
RS232
SERIAL PORT 1:
NIBP
SERIAL PORT 2:
SpO
2
SERIAL PORT 3:
TEMP
SERIAL PORT 4:
RECORDER
FIGURE 1-4 Main Board Principle Diagram
The main board communicates with all parameter modules and the recorder through an
FPGA extended serial port.
The main board supplies information using FPGA to the key and display board. It drives the
display, detects the keys, and implements the user interface.
The main board controls the alarm indicator using FPGA.
The main board controls the speaker to give audible alarms, key tones, and Pitch Tone.
The main board provides the nurse call connection, network connection, and R232
connection.
The real-time clock is implemented by the RTC chip. The RT clock is powered by the AC
mains, battery, or button cell on the main board. The button cell ensures the continuous
working of the clock in the event that the AC mains and batteries are not available.
SDRAM stores running program instructions and data temporarily. The system memory and
trend data memory is flashed. The device configuration memory is EEPROM.
Accutorr V Service Manual0070-10-07021 - 5
Hardware StructureTheory of Operation
1.4.2Power Board
The power board, shown in FIGURE 1-5, converts the input power (AC mains or battery) to
different working voltages for other boards. It also charges the battery.
AC
INPUT
EMI
FILTER
RECTIFIER
& FILTER
PMW
CONTROLLER
FLYBACK
CONVERTER
CURRENT
DETECTION
COUPLER
FEEDBACK &
ISOLATION
CIRCUIT
FIGURE 1-5 Power Board Principle Diagram
RECTIFIER
& FILTER
0VP&0PP
16.8V
DC/DC
CONVERTER
DC/DC
CONVERTER
CHARGING
CIRCUIT
DC/DC
CONVERTER
SWITCH
CIRCUIT
PCON
0VP&0CP
BATTERY
0VP&0CP
12V
OUTPUT
5V
OUTPUT
3.3V
OUTPUT
The AC flows through the EMI filter and the rectifier and filter. The rectifier and filter converts
the AC to 16.8V DC voltage by the Flyback converter. The 16.8V DC voltage is the main
input to the DC/DC converters and charging circuit. The DC/DC converters convert 16.8V
DC to 12V, 5V, and 3.3V DC. The charging circuit charges the lithium battery. When the
Accutorr V is not connected to the AC mains, the battery supplies power to the DC/DC
converters.
The 16.8V DC output is protected against over-voltage and over-power. The 12V, 5V, and
3.3V DC outputs are protected against over-voltage, short-circuit, and over–current.
1 - 60070-10-0702Accutorr V Service Manual
Theory of OperationHardware Structure
1.4.3Key and Displays Board
The key and displays board, shown in FIGURE 1-6, provides the user interface. The board
contains the LCD module, 7-segment digital display, LED indication lamp, and keys.
LCD
SIGNAL
ADV
3.3V
VSB
FSTN LCD
MODULE
KEY MATRIX
3.3V
DISABLE
LED
CPLD
Switch
START-UP
CIRCUIT
LED&KEY
DETECTION
FIGURE 1-6 Key and displays Board Principle Diagram
The LCD module adjusts brightness and contrast (only for black-and-white LCD display).
NOTE:The monitor with color LCD does not have “Contrast ”
setting item in the common setup menu.
The 7-segment digit units display parameter data.
The AC indicator is driven by the ADV output from the power board, and the working status
indicator (built in the Power On/Off key) is driven by 3.3V voltage. The battery indicator is
jointly controlled by the flash control signal, ADV signal, and VBC signal.
The keypad contains the power ON/OFF key and the other 13 function keys.
Accutorr V Service Manual0070-10-07021 - 7
Hardware StructureTheory of Operation
1.4.4Parameter Boards
1.4.4.1SpO
FIGURE 1-7 shows the SpO2 module parameter board diagram.
WATC HDOG
DRIVE DAC
Module
2
LED DRIVE
CIRCUITRY
SENSOR
/RST
WDI
GAIN CONTROL
CIRCUITRY
PROGRAMMABLE
GAIN CIRCUITRY
CPU
OFFSET DAC
OFFSET
AMPLIFIER
DRAM
FLASH
ISOLATED SERIAL
IN/OUTPUT PORT
4KV ISOLATED
POWER SUPPLY
+3.3V
+5V
-5V
A/D
CONVERTER
HOST
+12V
FIGURE 1-7 SpO
The SpO
sensor collects the pulsing red and infrared light signals transmitting through the
2
Module Principle Diagram
2
finger or toe, and processes the collected signals to create the measured result. The SpO2
module controls the LED drive circuit and the amplifying circuit gain corresponding to the
finger or toe perfusions and transmittances.
1 - 80070-10-0702Accutorr V Service Manual
Theory of OperationHardware Structure
1.4.4.2NIBP Module
FIGURE 1-8 shows the NIBP module parameter board diagram.
CUFF
MANIFOLD
VALVES
AND PUMP
PRESSURE
SENSOR
FOR
PROTECT
PRESSURE
SENSOR
PRESSURE
SIGNAL
AMPLIFIER
CIRCUITS
FOR
PROTECT
VALV E
CIRCUIT
PRESSURE
SIGNAL
PRESSURE
SIGNAL
AMPLIFIER
CIRCUITS
MOTOR CONTROL
FEEDBACK SIGNAL
PUMP AND
CONTROL
OVER
PRESSURE
PROTECT
CIRCUIT
WATC HDOG
A/D
CONVERTER
FLASHDRAM
CPU
ASYCHRONOUS
SERIAL
COMMUNICATION
FIGURE 1-8 NIBP Module Principle Diagram
The Accutorr V calculates NIBP values using the oscillometric method of noninvasive blood
pressure measurement. These measurements correspond to comparisons with auscultatory
values, measured using the fifth Korotkoff sound within ANSI/AAMI SP10 standards for
accuracy.
1.4.4.3Optional Temperature Module
FIGURE 1-9 shows the Temperature module parameter board diagram.
PROBE
RECOGNIZE
CIRCUIT
TEMPERATURE
DETECT
CIRCUIT
A/D
CIRCUIT
PROBE
HEAT
CIRCUIT
CPU SYSTEM
(ROM & RAM
WATCHDOG)
FIGURE 1-9 Optional Temperature Module Principle Diagram
The Temperature Module uses a thermistor as a sensor for measuring temperature. The
resistance of a given thermistor is nonlinearly relative to the temperature. The Temperature
Module measures the resistance of the thermistor and converts it into temperature.
Accutorr V Service Manual0070-10-07021 - 9
POWER
&
SIGNAL
ISOLATE
CIRCUIT
MAIN
BOARD
Hardware StructureTheory of Operation
1.4.5Recorder
The recorder receives data from the main board and sends it to the thermal printhead for
printing. It has a button to start or stop printing and a green LED to indicate the presence or
absence of paper.
1.4.6Bar Code Scanner
The bar code scanner reads one-dimensional and two-dimensional bar codes to simplify
admitting a patient. The bar code scanner communicates with the monitor. The serial port
supplies it with power. The scanner’s serial port is defined in the following table:
PINDEFINITION
2Barcode_RX
3Barcode_TX
5GND
9VCC5VDC
The monitor’s serial port is defined in the following table:
PINDEFINITION
2Monitor_TX
3Monitor_RX
5GND
9VCC5VDC
Basic settings of the bar code scanner are listed in the following table:
HOST PARAMETERS BAR CODE SCANNERFACTORY DEFAULT
Baud Rate 96009600
Data Bits 88
Stop Bits 11
Calibration bit 00
Handshaking NoneNone
USER PARAMETERSBAR CODE SCANNERFACTORY DEFAULT
Beeper Tone MediumMedium
Beeper Volume MediumHigh
Trigger Mode LevelAuto Aim
Parameter ScanningDisableEnable
DATA FORMATBAR CODE SCANNERFACTORY DEFAULT
Prefix Value7013 <CR><LF>7013 <CR><LF>
Suffix 1 Value
Suffix 2 Value
Scan Data Transmission Format <PREFIX><DATA><SUFFIX 1><SUFFIX 2>Data only
7013 <CR><LF>7013 <CR><LF>
1 - 100070-10-0702Accutorr V Service Manual
Theory of OperationHardware Structure
To change parameter settings, scan the following bar codes in sequence.
The Accutorr V monitors patient vital signs (including non-invasive blood pressure (NIBP),
pulse oxygen saturation (SpO2), and pulse rate (PR)) for a single adult, pediatric, or neonatal
patient. It also monitors oral or rectal mode temperature (Temp) for a single adult or pediatric
patient; or axillary mode temperature for a single neonate, adult, or pediatric patient using
the optional Temperature Module.
2.2NIBP Measurement
The NIBP module is used to measure the systolic pressure, diastolic pressure, and mean
pressure in the neonatal, pediatric, and adult modes. The Accutorr V calculates NIBP values
using the oscillometric method of noninvasive blood pressure measurement. These
measurements correspond to comparisons with auscultatory values, measured using the fifth
Korotkoff sound within ANSI/AAMI SP10 standards for accuracy.
2.2.1Blood Pressure
PARAMETERPATIENT SIZERANGE
Systolic pressure measurementAdult
Pediatric
Neonate
Diastolic pressure measurementAdult
Pediatric
Neonate
Mean pressure measurementAdult
Pediatric
Neonate
Measurement accuracyMean error:<±5 mmHg
Standard deviation: <±8 mmHg
Measurements outside of the stated ranges are not guaranteed to be accurate.
In normal use, the over-pressure detection is controlled by software. Once the cuff pressure
exceeds the threshold, the software enables the system to deflate the cuff.
Adult300 mmHg
Pediatric200 mmHg
Neonate150 mmHg
Single Fault Over-pressure protection
2 - 20070-10-0702Accutorr V Service Manual
SpecificationsNIBP Measurement
In single fault conditions, the hardware controls the cuff deflation to prevent the cuff
pressure from exceeding the following ranges:
Adult330 mmHg
Pediatric220 mmHg
Neonate165 mmHg
2.2.4Cuff Inflation
The Non-Invasive Blood Pressure inflation source brings a volume of 200 ccs to a pressure of
300 mmHg in less than or equal to 10 seconds
2.2.5Maximum Leakage
The Non-Invasive Blood Pressure Cuff driver allows a pressure drop to be, at most, 1 mmHg
in 10 seconds as measured with a 200 cc volume at differential pressures of 250 mmHg,
150 mmHg, and 50 mmHg.
2.2.6Deflation Rate
The Non-Invasive Blood Pressure Cuff venting mechanism in adult mode vents a volume of
500 cc, reduced from a pressure of 260 mmHg to a pressure of 15 mmHg in a maximum of
10 seconds.
The Non-Invasive Blood Pressure Cuff venting mechanism in neonatal mode vents a volume of
500 cc, reduced from a pressure of 150 mmHg to a pressure of 5 mmHg in a maximum of
5 seconds.
2.2.7Update Period
The Non-Invasive Blood Pressure Parameter has an update period of one (1) second.
2.2.8Initial NIBP Pressure Setup and Range
The initial pressure is adjustable, and should be set to the following default values:
PATIENT TYPEDEFAULT INITIAL PRESSUREADJUST RANGE
Adult180 mmHg100 – 280 mmHg
Pediatric140 mmHg60 – 180 mmHg
Neonate100 mmHg40 – 120 mmHg
Manual pressure changes in increments of 5 mmHg.
Accutorr V Service Manual0070-10-07022 - 3
NIBP Measurement CycleSpecifications
2.3NIBP Measurement Cycle
There are two different modes of measurement operation: manual and interval modes. The
manual mode requires the operator to initiate the measurement cycle.
The interval mode follows a configured plan of automatically initiated measurement cycles,
using the follow selections:
OFF (manual), STAT, or 1, 2, 3, 5, 10, 15, 20, 30, 60, 120, 240 minutes
NOTE:When the NIBP STAT interval is selected, the Accutorr V
takes back to back (one right after the other) blood pressure
readings. As a safety precaution, there is a five minute or
10 measurement limit for continuous NIBP measurements.
After 5 minutes or 10 measurements, the NIBP module
automatically switches to the mode in use before NIBP STAT
was selected. This reduces the chance of surface vessel
rupture (petechia).
The maximum adult and pediatric measurement cycle is 180 seconds.
The maximum neonatal measurement cycle is 90 seconds.
The NIBP module adjusts the inflation pressure automatically according to the systolic
pressure of the last measurement. If the first measurement is unsuccessful, the subsequent
inflation pressures change to 50 mmHg higher than the previous systolic pressure in adult or
pediatric mode, and 40 mmHg higher than the previous systolic pressure in neonate mode.
(The subsequent inflation pressure should be greater than the systolic pressure in the previous
measurement).
2.3.1Cuff Inflation Time
If the cuff pressure does not attain 15 mmHg within 20 seconds for adult and pediatric
patients, or 15 mmHg within 10 seconds for neonate patients from the start of inflation, the
Accutorr V retries measuring up to three times. If the target pressure is not reached after three
retries, the cuff is deflated, and a status code displays.
2.3.1.1Cuff Pressure Automatic Check Algorithm
If the monitor cannot inflate the cuff to the Pressure Threshold within the expected time period,
the monitor deflates the cuff, cancels the measurement, shuts off the pump, and displays the
message “Unable to Measure”. The cancellation occurs based on the following tables.
OPERATING MODEPRESSURE THRESHOLDDURATION
Adult and Pediatric15 mmHg20 sec.3
Neonate15 mmHg10 sec.3
NUMBER OF
RETRIES
OPERATING MODE
Adult, Pediatric, Neonate60 mmHg3
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TARGET INFLATION
PRESSURE
NUMBER OF
RETRIES
SpecificationsNIBP Measurement Cycle
2.3.2Automatically Adjusted Inflation Value after First Measurement
In the Interval and Stat modes, the inflation value of the next measurement will be
automatically adjusted by the NIBP module based on the systolic value of the previous
reading. After the first unsuccessful measurement, the subsequent inflation value will be the
previous systolic pressure reading plus P2:
Adult Mode:P2 = 50
Pediatric Mode:P2 = 50
Neonate Mode:P2 = 40
2.3.3Pulse Rate
Accuracy: ±3 BPM or ±3%, whichever is greater.
Resolution: 1 BPM
PATIENT TYPEPULSE RANGE
Adult35 – 245 BPM
Pediatric35 – 245 BPM
Neonate70 – 245 BPM
Measurements outside of the stated ranges are not
guaranteed to be accurate.
±10 mmHg
±10 mmHg
±10 mmHg
Accutorr V Service Manual0070-10-07022 - 5
SpO2 MeasurementSpecifications
2.4SpO2 Measurement
When configured with the DPM SpO2 module, NELLCOR NELL-3 SpO2 module, or MASIMO
MS-2013 SpO2 module, the Accutorr V can perform SpO2 measurements.
The SpO2 measurement function complies with the requirements of ISO9919.
2.4.1DPM SpO2 Module Performance
The DPM SpO2 accuracy has been validated in human studies against arterial blood sample
reference measured with a CO-oximeter. Pulse oximeter measurements are statistically
distributed, and only about two-thirds of the measurements can be expected to fall within the
specified accuracy compared to CO-oximeter measurements.
This section details the performance measurements of the Masimo MS-2013, which is
designed in accordance with the requirements of the interface of the Masimo MS-2013
board. The Accutorr V interface complies with the requirements of the Masimo MS-2013
board communication protocol.
2.4.2.1SpO
Compatible Sensors:
See Section 6.6 for a list of compatible sensors.
Measurement range: 1 – 100%
Resolution:
Accuracy no motion conditions:
PATIENT TYPE
Adult±2 digitsUndefined
Pediatric±2 digitsUndefined
Neonate±3 digitsUndefined
Accuracy During motion conditions:
PATIENT TYPE
Adult±3%Undefined
Pediatric±3%Undefined
Neonate±3%Undefined
2
1%
SPO
RANGE: 70% – 100%SPO2 RANGE: 1% – 69%
2
SPO
RANGE: 70% – 100%SPO2 RANGE: 1% – 69%
2
SpO
response time:
2
Under the condition that the PR is 75 BPM and the averaging is 8 seconds, the maximum
response time for the SpO
1The Masimo MS-2013 pulse oximeter with an LNOP- Adt sensor was validated for no motion accuracy
in human blood studies on healthy adult volunteers in induced hypoxia studies in the range of 70% to
100% SpO
one standard deviation. Plus or minus one standard deviation encompasses 68% of the population.
2The Masimo MS-2013 pulse oximeter with LNOP- Adt sensor has been validated for motion accuracy in
human blood studies on healthy adult volunteers in induced hypoxia studies while performing rubbing
and tapping motions at 2 to 4 Hz. At an amplitude of 1 to 2 cm and non-repetitive motion between 1 to
5 Hz at an amplitude of 2 to 3cm in induced hypoxia studies in the range of 70% to 100% SpO
a laboratory co-oximeter and ECG monitor. This variation equals plus or minus one standard deviation. Plus or minus one standard deviation encompasses 68% of the population.
3The Masimo MS-2013 pulse oximeter with LNOP-Neo and Neo Pt sensors has been validated for neona-
tal motion accuracy in human blood studies on neonates while moving the neonate’s foot at 2 to 4 Hz
at an amplitude of 1 to 2 cm against a laboratory co-oximeter and ECG monitor. This variation equals
plus or minus one standard deviation. Plus or minus one standard deviation encompasses 68% of the
population.
4The Masimo MS-2013 pulse oximeter has been validated for low perfusion accuracy in bench top test-
ing against a Biotek Index 2 simulator and Masimo’s simulator with signal strengths of greater then
0.02% and transmission of greater than 5% for saturations ranging from 70 to 100%. This variation
equals plus or minus one standard deviation. Plus or minus one standard deviation encompasses 68%
of the population.
against a laboratory co-oximeter and ECG monitor. This variation equals plus or minus
2
2.4.2.3Alarm Setting Range
ACCURACY IN
STATIC
CONDITION
1
ACCURACY IN
MOTION
CONDITION
against
2
2,3,4
SPO2 MODULE
MS-2013 SpO
2 - 80070-10-0702Accutorr V Service Manual
module50 – 10020 – 250 bpm
2
SPO
2
PR
SpecificationsSpO2 Measurement
2.4.3Nellcor NELL-3 SpO2 Performance
This section details the performance measurements of the NELL-3 pulse oximeter (integrated
OxiMax measurement technique), which is designed in accordance with the requirement of
the interface of the Nellcor NELL-3 board. The SHIP (Standard Host Interface Protocol) mode
is used.
2.4.3.1SpO
Compatible Sensors:
See Section 6.6 for a list of compatible sensors
Measurement Range and Accuracy:
SENSOR
MAX-A, MAX-P, and MAX-I± 2%Undefined
OxiCliq A, OxiCliq N, OxiCliq P and OxiCliq I±2.5%Undefined
D-YS, DS-100A, OXI-A/N and OXI-P/I± 3%Undefined
MAX-R, D-YSE and D-YSPD± 3.5%Undefined
1When sensors are used on neonatal subjects as recommended, the specified accuracy range
2Neonatal accuracy specifications are based upon testing neonatal sensors on healthy adult volun-
2
ACCURACY
70% – 100%0% – 69%
increases by ± 1 digit, to account for the theoretical effect on oximeter measurements of fetal
hemoglobin in neonatal blood.
teers in induced hypoxia studies, in the range of 70-100% SpO
into account published literature which predicts that there may be a small difference in % SpO
reported by the oximeter when measurements from adult and fetal blood with 100% fetal hemoglobin are compared. Fetal hemoglobin is present in concentrations varying from 10% to 90% in neonatal blood, and this percentage declines over time. As the percentage of fetal hemoglobin in
neonatal blood declines, the theoretical effect on accuracy due to this source is reduced
. The specified accuracy also takes
2
1,2
2
2.4.3.2Pulse Rate
MEASUREMENT RANGEACCURACY
20 – 250 BPM±3 BPM
251 – 300 BPMUndefined
2.4.3.3Alarm Setting Range
SPO2 MODULE SPO
Nell-3 SpO
Accutorr V Service Manual0070-10-07022 - 9
module50 – 10020 – 250 bpm
2
2
PULSE RATE
Temp er at ur eSpecifications
2.5Temperature
MODE
monitor25
predict35
MEASUREMENT
RANGEACCURACY
º
C – 44
º
(77
F – 111.2º F)
º
C – 43
º
(95
F – 109.4º F)
º
C
º
C
º
C (77º F) – 32º C
25
º
(89.6
F), not including
º
C (89.6º F)
32
º
32
C (89.6º F) – 44ºC
º
(111.2
F), including
º
C (89.6º F)
32
Not definedtypically 10 s – 12 s
º
±0.2
C (±0.4ºF)<60 s
º
±0.1
C (±0.2ºF)
2.6Display Area, Indicator, and Controller
On the front panel of the Accutorr V, there are a panel display area, a red/yellow LED group
(on the top of the device), a set of buttons, and patient cable connectors. Refer to Chapter 2
of the Accutorr V Operating Instructions (P/N 0070-10-0699-XX).
2.6.1Display Area
The display area includes 1 LCD, 7 groups of 7-segment digit display, and 7 groups of
monochrome LED indicators.
TYP ICAL
MEASUREMENT
TIME
from the moment
when temperature
“----” displays
dynamically
2.6.1.1LCD
Monochrome FSTNMatrix: 320×160
Color TFTMatrix: 480×272
LCD type
SIZE AND
RESOLUTIONDISPLAYED CONTENTSNOTE
2
2
The brightness
and contrast of
the LCD are
adjustable.
Only brightness
of LCD is
adjustable.
dot pitch: 0.24×0.24
dot pitch:
0.16125×0.16125
Startup screen, menus/
dialogs, time and date,
prompt messages, patient ID,
patient size, trend data
(including scroll bar), SpO
waveform, and time to the
next NIBP measurement
Startup screen, menus/
dialogs, time and date,
prompt messages, patient ID,
patient size, trend data
(including scroll bar), SpO
waveform, and time to the
next NIBP measurement
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SpecificationsDisplay Area, Indicator, and Controller
2.6.1.27-Segment Digit Display
Seven groups of 7-segment digit displays display the systolic pressure (red LED), diastolic
pressure (red LED), mean pressure/cuff pressure (red LED), SpO
temperature (red LED), and NIBP interval(red LED).
(green LED), PR (red LED),
2
2.6.1.3Monochrome LED Indicator
Seven groups of monochrome LED indicators display or indicate the pulse strength (green
LED), ADULT–PEDIATRIC–NEO (patient type)–(green LED), Pulse Rate Source (SpO
NIBP)–(green LED), F/C (unit of temperature)–(red LED), silence function (yellow LED), NIBP
measurement status (green LED), and temperature measurement type (red LED).
2
or
2.6.1.4Power Indicator
AC power indicatorGreen LED
Illuminates when the Accutorr V is connected to the AC
mains.
Battery indicatorGreen LED
On/Standby indicatorGreen LED
2.6.2Overlay and labeling
• The front panel overlays are displayed in English and extended to other languages.
• The labeling is displayed only in English.
• Startup screen, menu fonts, and LCD prompting characters can be changed through a
software upgrade. The default start logo is Accutorr V.
• The format of the date can be set in the maintenance mode: Chinese style (year - month day), European style (day - month - year), American style (year - day - month).
• Display of NIBP data:
• The LCD display order is: systolic pressure data, diastolic pressure data, and mean
pressure data. For legibility, a “/” separates the data of the three pressures.
• Data displayed by LED digit displays: The systolic pressure data and diastolic pressure
data (in the same fonts) are displayed in parallel. The font of the mean pressure data is
smaller than the systolic pressure data and diastolic pressure data, and displays next
to them.
Illuminates when the unit is on and the battery is inserted.
Flashes when the battery voltage is too low.
Illuminates when the device is powered on or in standby
mode.
Darkens when the device is shut down.
Accutorr V Service Manual0070-10-07022 - 11
Display Area, Indicator, and ControllerSpecifications
2.6.3Alarm Lamp
• The monitor provides 2 alarm priority levels: high level alarms or low level alarms.
• The Alarm lamp is on the front panel of the monitor. It is a group of (red/yellow) LED
indicators.
• During a high alarm, the red LED, of which the duty cycle is 50%, flashes at a frequency
of 1.4 – 2.8 Hz (84 times per minute).
• During a low alarm, the yellow LED illuminates continuously.
• In case a high alarm and a low alarm occur simultaneously, only the red LED flashes.
NOTE:The audio alarm indication complies with EN60601-1-8.
2.6.4Keys
There are 14 keys on the front panel of the monitor.
KEYSDESCRIPTION
Turn the monitor on, off, or switch to standby. In the operating state,
press and hold for less than 1 second to switch the device to the
On/Standby indicator
Start NIBP
standby or press and hold for 2s to turn the device off.
Press to start an NIBP measurement.
Deflate
Print
Silence
Set Alarms
Interval
Menu
Display
Patient Info
Patient Size
Up Arrow
During an NIBP measurement, stops the measurement. Also, suspends
interval mode until the next time NIBP Start is pressed.
Start recording trend data/real-time waveform. Press again to stop
recording. When recording trend data, press and hold for less than 1
second to record the current data displaying on the LCD, or press and
hold for 2 seconds to record all data of the current patient.
This button has dual functions:
Press and hold for less than 1 second to pause an audio alarm
(parameters in alarm continue to flash).
Press and hold for 2 seconds to silence an alarm.
Sets alarm parameters.
Sets the measurement mode and time interval. Option: STAT mode,
Off, and interval mode (options: 1, 2, 3, 5,10, 15, 20, 30, 60, 120,
and 240 minute intervals). In the Off mode, perform measurement
manually.
Press to view the menu options.
Press to switch between the normal views, PLETH waveform.
Press to automatically create a patient ID.
Press to change patient size
Press to perform menu operations on the LCD.
OK
Down Arrow
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SpecificationsDisplay Area, Indicator, and Controller
2.6.5Patient Cable Connectors
The patient cable connectors include the NIBP connector, SpO2 connector, and the optional
thermometer connector.
CABLE
CONNECTORDESCRIPTION
NIBP Cuff
The NIBP cuff connector label is .
SpO
2
Temperature
probe
The SpO2 connector label is SpO2.
• Connects the DPM, Masimo, or Nellcor cable. The Label is SpO
manufacturer name.
with the
2
• Apply standard round DPM 6 pin connector (same as used on Trio) to the
monitor configured with the DPM SpO
board.
2
• Apply the Masimo connector to the monitor configured with the MS-2013
board.
SpO
2
• The monitor configured with the Masimo SpO
the Masimo SET registered trademark.
board must be labeled with
2
• Apply the Nellcor connector to the monitor configured with the Nell-3 SpO
board.
• The monitor configured with the Nellcor SpO
Nellcor mark.
board must be labeled with the
2
The Temperature probe connector label is T1.
• Uses optional Mindray Smartemp predictive temperature module.
• The connector of temperature probe (oral/axillary or rectal) is labeled “T1”.
• The oral/axillary probe is blue, and the rectal probe is red.
2
Accutorr V Service Manual0070-10-07022 - 13
Audio IndicatorSpecifications
2.7Audio Indicator
A built-in speaker sounds audio alarms, button tones, and pulse tones.
The Accutorr V supports pitch tone and multiple-level volume.
2.7.1Pulse Tone Function
The pitch of the pulse tone is modulated according to the SpO2 value, and the frequency
increases as the SpO
The monitor can perform automatic 22-level modulation of the pulse tone’s pitch.
value increases.
2
2.7.2Multiple-Level Volume
There are 11 alarm levels. The alarm may be disabled or set to a level between 1 and 10.
2.8Real-time Clock
Range0:0:0, 2001 – 23:59:59, 2099
o
AccuracyAt 21 ±3
Resolution1second
The real-time clock is powered by an independent battery and functions when the device is powered off.
C, ±1 min/month
2 - 140070-10-0702Accutorr V Service Manual
SpecificationsStandby Mode
2.9Standby Mode
• To enter the standby mode, the monitor must be disconnected from the patient and
receive no physiological signals from a patient with no low-battery alarm.
• To enter the standby mode, press and confirm the operation in the pop-up dialog.
• After the monitor enters the standby mode:
• The LCD and the LEDs no longer display data.
• The SYS. LEDs Display flashes — — —.
• The current monitoring configuration and history data are saved.
• All current alarms are cleared.
• The NURSE CALL function is disabled. The NURSE CALL function is re-enabled when
the monitor resumes in normal mode.
• The connection with the central monitoring system stays the same as before entering
the standby mode.
• To resume normal mode:
1. Press any key on the front panel.
2. Confirm the resume operation at the confirm dialog. After confirming the resume
operation, the monitor exits the standby mode and enters the normal mode. If the
operation is not confirmed within 30 seconds, the system automatically selects Cancel,
and the monitor stays in the standby mode.
• In the following conditions, the monitor exits the standby mode and enters the normal
mode:
• The monitor receives SpO
• The predictive temperature sensor is removed from its sheath.
• The monitor is powered by battery, and a low-battery alarm occurs.
• Once the monitor enters the normal mode:
• The alarm function is re-enabled.
• The history data, patient information, and other settings from before the monitor
entered the standby mode are restored.
• Data communication is restored.
• The LCD displays.
• The LEDs display parameter data.
• Saving trend data starts.
physiological signals for 5 seconds.
2
Accutorr V Service Manual0070-10-07022 - 15
Alarm InformationSpecifications
2.10Alarm Information
2.10.1Basics
• There are two types of alarms:
• Physiological alarms: The physiological parameters of the monitored patient
exceed the specified ranges, or the physiological exceptions of the patient cannot be
judged according to a single physiological parameter.
• Technical alarms: The patient cannot be monitored normally and accurately due to
faults in manual operation, technical faults, or faults in the monitor.
• The high priority alarm indicates only physiological alarms and a low battery alarm.
• The low priority alarm indicates only technical alarms, other than low battery.
• The Accutorr V provides functionality for selecting the upper limit and lower limit of each
physiological alarm.
2.10.2Alarm Notification
1. When an alarm occurs, the system notifies the user through the speaker, alarm indicator,
relevant 7-segment LED digit displays, and LCD status bar.
2. When alarms of multiple levels occur simultaneously, the system notifies the user of the
alarm with the highest level through the speaker and alarm indicator.
3. If the hospital Nurse Call system is available and connected to the monitor, the user can
be notified of relevant alarms through the Nurse Call system.
2.10.3Audio Alarm Pause, Audio Alarm Off, and Audio Alarm Silencing
The monitor provides functionality for pausing (disabling) an audio alarm for 120 seconds.
After 120 seconds, the audio alarm notification functionality resumes. The user can resume
the audio alarm notification at any time. An alarm causes the monitor to terminate the
paused state.
• The monitor provides the ability to turn the audio alarm off globally. During audio alarm
off, a remind signal reminds the user every minute.
• The monitor provides the ability to silence an alarm. The monitor automatically exits the
alarm silenced status if a new technical or physiological alarm occurs.
2.11Configuration management
The monitor provides a factory configuration and a user configuration. The monitor loads the
selected configuration when it is switched on. If no user configuration exists, the factory
configuration is automatically loaded.
2.12Barcode scanner
The monitor can admit a patient using the barcode scanner.
This chapter details potential monitor issues with possible causes and corrective actions. For
additional information on troubleshooting, contact service.
3.2Part Replacement
Printed circuit boards (PCBs), major parts, and components in the monitor are replaceable.
Isolate a PCB suspected to be defective, follow the instruction to replace it, and retest. If the
trouble remains, exchange the replacement PCB with the original suspicious PCB and
continue troubleshooting as directed in this chapter.
3.3Monitor Status Check
Some troubleshooting tasks may require identifying the hardware version and status of the
monitor.
To view the system software version and FPGA version:
1. Press .to display the SYSTEM SETUP dialog as shown in FIGURE 3-1.
2. Press or to highlight MAINTENANCE.
FIGURE 3-1SYSTEM SETUP Dialog
3. Once MAINTENANCE is highlighted, press to display the MAINTENANCE
dialog as shown in FIGURE 3-2.
FIGURE 3-2MAINTENANCE dialog
4. Press or to highlight VERSION.
3 - 20070-10-0702Accutorr V Service Manual
TroubleshootingTechnical Alarm Check
5. Once VERSION is highlighted, press to display the VERSION dialog as shown
in FIGURE 3-3.
FIGURE 3-3Example VERSION dialog
6. Press or to highlight TOTAL RUN TIME or MODULE VERSION.
7. Once the selection is highlighted, press to display the data.
8. Press to exit to the MAINTENANCE dialog.
3.4Technical Alarm Check
If a technical alarm message displays on the LCD, eliminate the technical alarm first, then
troubleshoot according to the following instructions. For additional information on technical
alarm messages, possible causes, and corrective actions, refer to the Accutorr V Operating
Instructions.
Accutorr V Service Manual0070-10-07023 - 3
Troubleshooting GuideTroubleshooting
3.5Troubleshooting Guide
3.5.1Power On/Off Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
The monitor fails to
start. AC LED or
battery LED does not
light
AC mains not connected or
battery too low
Power supply protectionRefer to Power Supply Failures.
Cables defective or poorly
connected
Power switch and LED board
defective
Power module defectiveReplace the power module.
Main board DefectiveReplace the main board.
Confirm that the AC mains is properly connected and that
the battery capacity is sufficient.
• Confirm that the cables from the power switch and the
LED board to the keyboard, keyboard to the main
board, and the power module to the main board are
correctly connected.
• Confirm that the cables and connectors are not
damaged.
Replace the power switch and LED board.
3.5.2Display Failure
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
The display is black or
blank, but the monitor
still works correctly.
Images overlapped or
distorted
Cables defective or poorly
connected
Backlight defectiveReplace the LCD.
LCD defectiveReplace the LCD.
FPGA errorUpdate or upgrade FPGA.
Cables defective or poorly
connected
• Confirm that the cables from the display to the main
board are correctly connected.
• Confirm that the cables and connectors are not
damaged.
• Confirm that the cable from the display to the main
board is correctly connected.
• Confirm that the cables and connectors are not
damaged.
3.5.3LED Digital Display and Indication Lamp Failure
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
LED digital display or
indication lamp
display abnormally.
Signal wires damaged• Confirm that the LED signal wires are correctly
LED digital display or
indication lamp damaged
connected.
• Confirm that the cables and connectors are not
damaged.
Replace the LED digital display or indication lamp.
3 - 40070-10-0702Accutorr V Service Manual
TroubleshootingTroubleshooting Guide
3.5.4Alarm Problems
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
The alarm lamp does
not light or is
extinguished, but alarm
sounds
Alarm does not sound,
but alarm lamp lights
properly
Cables defective or
poorly connected
Key and display board
failure
Main board failure Replace the main board.
Audio alarm disabled
Cable defective or
poorly connected
Audio program error
identified in the system
program
Speaker failureReplace the speaker.
Main board failureReplace the main board,
• Confirm that the cables from alarm LED board to keyboard
and keyboard to main board are properly connected.
• Confirm that the connecting cables and connectors are not
damaged.
Replace the key and display board.
1. Press to display the SYSTEM SETUP dialog as shown
in FIGURE 3-1.
2. Press or to highlight MAINTENANCE.
3. Once MAINTENANCE is highlighted, press to
display the MAINTENANCE dialog as shown in FIGURE 3-2.
4. Press or to select USER MAINTENANCE.
5. Once USER MAINTENANCE is highlighted, press to
display the USER MAINTENANCE dialog.
6. Enter the required password.
7. In the pop-up menu, set the [MIN ALARM VOL] to a value
other than zero.
• Confirm that the cable between speaker and main board is
properly connected.
• Confirm that the connecting cables and connectors are not
damaged.
Upgrade system programs.
3.5.5Key Failure
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Keys do not workCables defective or
poorly connected
Keyboard failureReplace keyboard.
Accutorr V Service Manual0070-10-07023 - 5
• Confirm that the cable between keyboard and main board
is properly connected.
• Confirm that the connecting cables and connectors are not
damaged.
Troubleshooting GuideTroubleshooting
3.5.6Recorder Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTION
No printoutRecorder module
disabled
Paper reversely installedRe-install the paper roll.
Cable defective or
poorly connected
Recorder power supply
failure
Recorder failureReplace the recorder.
Poor print quality or
paper not feeding
properly
Paper roll not properly
installed
Dirty thermal print head• Confirm that the thermal print head and the paper roller do
Recorder failureReplace the recorder.
• Confirm that the recorder status LED is on.
• If yes, reset the recorder. If no, check for other possible
causes.
• Confirm that the cable between recorder and main board is
appropriately connected.
• Confirm that the connecting cables and connectors are not
damaged.
Confirm that the power module outputs 5V DC and 16.8V DC
correctly.
Stop the recorder and re-install the paper roll.
not contain foreign matter.
• Clean the thermal print head with an appropriate detergent.
3.5.7Interface Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTION
No nurse call signals are
issued
Bar code scanner unable
to be used
Incorrect function settings
Main board failureReplace the main board.
Bar code scanner failureRefer to Bar Code Scanner Failures.
Serial port failureReplace the main board.
1. Press to display the SYSTEM SETUP dialog as
shown in FIGURE 3-1.
2. Press or to highlight MAINTENANCE.
3. Once MAINTENANCE is highlighted, press to
display the MAINTENANCE dialog as shown in
FIGURE 3-2.
• Confirm that the cable between battery interface
board and power module is correctly connected.
• Confirm that the cables and connectors are not
damaged.
3 - 60070-10-0702Accutorr V Service Manual
TroubleshootingTroubleshooting Guide
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTION
Battery fails to be fully
charged
Battery unable to be
recharged
No +3.3 V output• Power supply protection
No +5.0 V output
No +12 V output
Battery failureReplace battery.
Cable defective or poorly
connected
Power board failureReplace the power board.
Battery damagedReplace battery and recharge the replacement battery.
Cable defective or poorly
connected
Power board failureReplace the power board.
• Power board failure
• Confirm that the cable between battery interface
board and the power module is properly
connected.
• Confirm that the connecting cables and connectors
are not damaged.
If the replacement battery can be recharged, the
original one fails.
• Confirm that the cable between battery interface
board and the power module is properly
connected.
• Confirm that the connecting cables and connectors
are not damaged.
• Turn off the monitor then restart it.
• If the problem remains, disconnect the AC mains
for 5 seconds and reconnect it, then restart the
monitor.
• If the problem still remains, replace power board.
NOTE:If the power module fails, it may damage other components
NOTE:If the parameter module, recorder, or bar code scanner
(e.g. the monitor suddenly shuts down during the start-up).
In this case, troubleshoot the power module using the
procedure described in the previous table.
malfunctions, check if the operating voltage is correct.
3.5.9Network Related Problems
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
The monitor can not
connect to the CMS.
Frequent dropouts and
network disconnections
No connection to LAN• Confirm that the cables and connectors are in good
condition and that the monitor is connected to the
network.
• Confirm that the hub and switch facilities are
correctly configured.
Improper LAN cable
connection
Incorrect IP address
configuration
Confirm that the LAN cable is connected. The LAN
cable must not be longer than 50 m.
Check for IP address conflict. Reconfigure IP address.
Accutorr V Service Manual0070-10-07023 - 7
Troubleshooting GuideTroubleshooting
3.5.10Software Upgrade Problems
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Bootstrap upgrade failsPower failure or unintended
power off during bootstrap
upgrade
Program upgrade failsIncorrect network connection• Confirm that the monitor is connected to the
Wrong upgrade package has
been downloaded
Incorrect IP address
configuration
Return the main board to the factory for repair.
network.
• Confirm that the hub or the switcher is functioning.
• Confirm that the net cables are of the right type and
have been connected correctly.
Incorrect upgrade package .mup files were used. Select
package according to the program to upgrade.
Configure a fixed IP address in range as specified for
the monitor. Do not upgrade a program while the
monitor is connected to a network.
3.5.11Bar Code Scanner Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Bar code scanner does
not work
Bar code scanner cannot
decode the target bar
codes
Scanned characters
incorrectly displayed on
the monitor
Bar code scanner not
powered on
Incorrect interface cables
used
Loose Interface cablesConfirm that the interface cables are attached securely.
Bar code scanner not
programmed correctly.
Unreadable bar codeCheck if bar codes of the same type can be decoded.
Scanner and bar code at
improper distance and
angle
The monitor’s bar code
recognition configuration
does not meet the format of
the target bar code.
Scanner serial port output
incorrectly set
1. Press to display the SYSTEM SETUP dialog as
shown in FIGURE 3-1.
2. Press or to highlight MAINTENANCE.
3. Once MAINTENANCE is highlighted, press to
display the MAINTENANCE dialog as shown in
FIGURE 3-2.
4. Press or to select USER MAINTENANCE.
5. Once USER MAINTENANCE is highlighted, press
to display the USER MAINTENANCE dialog.
6. Enter the required password.
7. Set [BARCODE POWER] to [ON] in the menu to switch
on the bar code scanner.
Replace interface cables.
Re-program the bar code scanner to decode the specified bar
codes.
Aim the scanner at the bar code and adjust the distance
between the scanner and the bar code.
Download the correct bar code recognition configuration for
the monitor.
Configure the scanner’s serial port output according to the
host serial port settings.
3 - 80070-10-0702Accutorr V Service Manual
TroubleshootingTroubleshooting Guide
3.5.12NIBP Measurement Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Unable to start NIBP
measurement
Cuff inflation/deflation
failure
Cables detectiveConfirm that the cables between NIBP module and the
main board are in good condition.
Main board failureReplace the main board.
Pump or valve damaged Replace the NIBP module.
Air tubing occludedReplace the air tubing.
3.5.13SpO
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Unable to measure SpO
Measurement Failure
2
SpO2 sensor failureReplace the SpO2 sensor.
2
Cables defectiveConfirm that the cable between the SpO
SpO
module failureReplace the SpO2 module.
2
Main board failureReplace the main board.
the main board is in good condition.
3.5.14Temperature Measurement Failures
SYMPTOMSPOSSIBLE CAUSE CORRECTIVE ACTIONS
Unable to measure patient
temperature
Temperature probe damagedReplace the Temperature probe.
Cables detectiveConfirm that the cable between the Temperature
Disassembling the NIBP Module .......................................................................4 - 20
Accutorr V Service Manual0070-10-07024 - 1
ToolsRepair and Disassembly
4.1Tools
During disassembly and replacement, the following tools may be required:
• Phillips screwdrivers
• Wire cutters
• Sharp nose pliers
• Metric wrenches
• Metric nut drivers
4.2Preparation for Disassembly
Before disassembling the monitor: stop monitoring patients, turn off the monitor, disconnect
all the accessories and peripheral devices, remove the battery, and disconnect the monitor
from the mains power supply.
CAUTION:Before disassembling the monitor, eliminate static charges.
CAUTION:Properly connect the cables or wires when reassembling the
When disassembling the parts labeled with static-sensitive
symbols, wear electrostatic discharge protection such as
antistatic wristband or gloves. Follow the correct sequence
to disassemble the monitor. Otherwise, the monitor may be
damaged permanently. Disconnect all the cables before
disassembling any parts. Take care not to damage any
cables or connectors.
monitor to avoid short circuits. When assembling the
monitor, select proper screws. If the wrong size screw is
tightened by force, the monitor may be damaged and the
screw or the part may not function as expected.
4 - 20070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3 Disassembly
4.3.1Separating the Front and Rear Halves of the Monitor
1. If the monitor is not configured with an Optional Temperature module, proceed to
step 2. If the monitor is configured with an Optional Temperature module:
a. Remove the two (2) M3×6 cross-head screws (as shown in Figure 4-1).
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-1 Remove two (2) M3x6 cross-head screws.
b. Disconnect the Temp cable connector from the PCBA as shown in Figure 4-2.
Temp cable connector
FIGURE 4-2 Disconnect the Temp cable connector.
Accutorr V Service Manual0070-10-07024 - 3
DisassemblyRepair and Disassembly
2. Remove the four (4) M3×8 cross-head screws (as shown in Figure 4-3).
M3x8 cross-head screw
M3x8 cross-head screw
M3x8 cross-head screw
M3x8 cross-head screw
FIGURE 4-3 Remove four (4) M3x8 cross-head screws.
3. Release the clips (as shown in Figure 4-4) on the front and rear housings.
FIGURE 4-4 Release the clips.
Clips
4 - 40070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4. Disconnect the cables and air tubing connecting the front and the rear housings.
5. Separate the front and the rear housings (Figure 4-5).
Cable Connector
Cable Connector
Cable Connector
Tubing Connection
Cable Connector
FIGURE 4-5 Separate the front and rear housings.
NOTE:Exercise care when separating the front and the rear
housings. Be sure not to damage the cables and connectors.
Accutorr V Service Manual0070-10-07024 - 5
DisassemblyRepair and Disassembly
4.3.2Disassembling the Front Housing Assembly
1. Remove the six (6) M3×6 cross-head screws (as shown in Figure 4-6), and remove the
key board.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
Black-and-White LCD Front Housing Assembly
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
Color LCD Front Housing Assembly
FIGURE 4-6 Remove six (6) M3x6 cross-head screws.
4 - 60070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
2. Remove the four (4) M3×8 cross-head screws (as shown in Figure 4-7).The monitor with
color LCD does not need this step.
M3x8 cross-head screw
M3x8 cross-head screw
M3x8 cross-head screw
M3x8 cross-head screw
FIGURE 4-7 Remove four (4) M3x8 cross-head screws.
3. Disconnect the flexible cables on the button board.
4. Remove the LCD.
5. Remove the two (2) M3×6 cross-head screws (as shown in FIGURE 4-8), and take out
the SpO
2
rack.
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-8 Remove two (2) M3x6 cross-head screws.
Accutorr V Service Manual0070-10-07024 - 7
DisassemblyRepair and Disassembly
6. Remove the screw (as shown in FIGURE 4-9) to remove the SpO2 module from the SpO2
rack.
Screw
DPM SpO
Module
2
Masimo SpO
FIGURE 4-9 Remove the screw.
7. Remove the two (2) screws for the
8. Take out the SpO
signal cable.
2
Screw
Module
SpO2 signal cable (as shown in Figure 4-10).
2
Screw
Screw
Nellcor SpO2
Module
Screw
FIGURE 4-10 Remove two (2) screws.
9. For DPM SpO
only, unscrew the plastic nut for the DPM SpO2 signal cable (as shown in
2
Figure 4-11).
Plastic Nut
FIGURE 4-11 For DPM SpO
4 - 80070-10-0702Accutorr V Service Manual
only, unscrew the plastic nut.
2
Repair and DisassemblyDisassembly
4.3.3Removing the Main Rack Assembly
1. Remove the two (2) M3×6 cross-head screws (as shown in Figure 4-12).
2. Take out the recorder by pushing the clips inward.
M3x6 cross-head screw
M3x6 cross-head screw
Clip
Clip
FIGURE 4-12 Remove two (2) M3x6 cross-head screws.
3. Unplug the two (2) cable connectors (as shown in Figure 4-13) from the recorder.
Cable Connector
Cable Connector
FIGURE 4-13 Unplug two (2) cable connectors.
Accutorr V Service Manual0070-10-07024 - 9
DisassemblyRepair and Disassembly
4. If the device is not configured with an optional Temperature module, skip to Step 6.
5. If the device is configured with an optional Temperature module, remove the
Temperature module board.
FIGURE 4-14 Remove optional temperature module board.
6. Remove the six (6) M3×6 cross-head screws (as shown in Figure 4-15).
7. Take out the main rack assembly.
FIGURE 4-15 Remove six (6) M3x6 cross-head screws.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
4 - 100070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3.4Removing NIBP Module
1. Unplug the NIBP module from the CPU Board (as shown in Figure 4-16).
Unplug the NIBP module
FIGURE 4-16 Unplug the NIBP module.
2. Remove the three (3) M3×6 cross-head screws (as shown in Figure 4-17).
3. Take out the NIBP rack.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-17 Remove three (3) M3x6 cross-head screws.
Accutorr V Service Manual0070-10-07024 - 11
DisassemblyRepair and Disassembly
4.3.5Removing the Main (CPU) Board
1. Unplug the Main board power cable from the power supply as shown in FIGURE 4-18.
2. Cut the tie wrap to the speaker as shown in FIGURE 4-18.
Cable Connector
Cable Tie
FIGURE 4-18 Unplug the Main board cable connector and cut one (1) tie wrap.
3. Unplug the speaker cable (J10) from the Main board (see FIGURE 4-19).
4. Unplug the recorder cable (J8) from the Main board (see FIGURE 4-19).
5. Take out the main board by removing the four (4) M3×6 cross-head screws (as shown in
FIGURE 4-19).
M3x6 cross-head screw
Recorder Cable
Speaker Cable
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-19 Unplug (2) two cable connectors and remove four (4) M3x6 cross-head
screws.
4 - 120070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3.6Removing the Power Board
1. Unplug the battery connector cable.
2. Remove the power board by removing the three (3) M3×6 cross-head screws (as shown
in Figure 4-20).
3. Unplug the remaining cable connectors (fan, AC mains connector, and Main (CPU)
board) from the Power board.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-20 Remove three (3) M3x6 cross-head screws.
4.3.7Removing the Battery Connector Assembly
Remove the three (3) M3×6 cross-head screws (as shown in Figure 4-21).
FIGURE 4-21 Remove three (3) M3x6 cross-head screws.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
Accutorr V Service Manual0070-10-07024 - 13
DisassemblyRepair and Disassembly
4.3.8Removing the Fan and Speaker
1. Cut the cable ties on the fan, speaker, and the main rack.
2. Remove the fan cushion (as shown in Figure 4-22).
Fan Cushion
FIGURE 4-22 Remove the Fan Cushion.
3. Remove the three (3) M3×25 cross-head screws (as shown in Figure 4-23).
4. Remove the fan.
5. Remove the speaker from the main rack.
FIGURE 4-23 Remove Three (3) M3x25 cross-head screws.
M3x25 cross-head screw
M3x25 cross-head screw
M3x25 cross-head screw
4 - 140070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3.9Removing the Power Socket
1. Remove the retaining nut securing the grounding post (as shown in Figure 4-24).
2. Remove the grounding terminal.
Retaining Nut
FIGURE 4-24 Remove the retaining nut.
3. Remove the two (2) M3×8 cross-head screws (as shown in Figure 4-25).
4. Remove the power socket.
M3x8 cross-head screw
M3x8 cross-head screw
FIGURE 4-25 Remove Two (2) M3x8 cross-head screws.
Accutorr V Service Manual0070-10-07024 - 15
DisassemblyRepair and Disassembly
4.3.10Disassembling the Temperature Module
1. Remove the two (2) M3×6 cross-head screws (as shown in Figure 4-26).
2. Take the cover plate off.
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-26 Remove Two (2) M3x6 cross-head screws
3. Remove the three (3) M3×6 cross-head screws (as shown in Figure 4-27).
4. Remove the Temperature module board.
5. Remove the mylar sleeve.
M3x6 cross-head screw
M3x6 cross-head screw
M3x6 cross-head screw
FIGURE 4-27 Remove three (3) M3x6 cross-head screws.
4 - 160070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3.11Disassembling SpO2 Modules
4.3.11.1Disassembling a DPM SpO
1. Remove the M3×6 cross-head screw (as shown in FIGURE 4-28).
M3x6 cross-head screw
FIGURE 4-28 Remove one M3 X 6 cross-head screw
2. Remove the SpO
board. (as shown in FIGURE 4-29)
2
module
2
FIGURE 4-29 DPM SpO
Accutorr V Service Manual0070-10-07024 - 17
board and isolated power supply.
2
DisassemblyRepair and Disassembly
4.3.11.2Disassembling a Masimo SpO2 module
1. Remove the isolation power board by removing the three (3) M3 nuts (as shown in
Figure 4-30).
2. Remove the three (3) M3×6 cross-head screws.
M3 Nut
M3x6 cross-head screw
M3 Nut
M3x6 cross-head screw
M3 Nut
M3x6 cross-head screw
FIGURE 4-30 Remove three (3) M3 nuts, and three (3) M3x6 cross-head screws.
3. Remove the SpO
FIGURE 4-31 Masimo SpO
board.
2
board and isolated power supply.
2
4 - 180070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
FIGURE 4-32 Masimo isolated power supply.
4.3.11.3Disassembling a Nellcor SpO2 module
1. Remove the M3×6 cross-head screw (as shown in FIGURE 4-33) to separate the SpO2
module from its isolated power supply (as shown in FIGURE 4-34).
M3x6 cross-head screw
FIGURE 4-33 Remove one (1) M3x6 cross-head screw.
FIGURE 4-34 Nellcor SpO
board and isolated power supply.
2
Accutorr V Service Manual0070-10-07024 - 19
DisassemblyRepair and Disassembly
4.3.12Disassembling the NIBP Module
4.3.12.1Removing the NIBP Pump
1. Unplug the pump cable connector from the NIBP board.
2. Disconnect the tubing.
3. Cut the two tie wraps holding the NIBP pump as shown in FIGURE 4-35.
4. Remove the pump.
Pump Tubing
Tie Wraps
FIGURE 4-35 Cut two (2) tie wraps.
4.3.12.2Removing the NIBP Dump Valve
1. Unplug the dump valve cable connector from the NIBP board.
2. Disconnect the tubing.
3. Remove the two (2) screws on the bottom of the NIBP rack as shown in FIGURE 4-36.
4. Remove the dump valve.
Pump Cable Connector
Screw
Screw
FIGURE 4-36 Remove two (2) screws.
4 - 200070-10-0702Accutorr V Service Manual
Repair and DisassemblyDisassembly
4.3.12.3Removing the NIBP Bleed Valve
1. Unplug the bleed valve cable connector from the NIBP board.
2. Disconnect the tubing.
3. Remove the two (2) screws as shown in FIGURE 4-37.
4. Remove the bleed valve.
Screws
FIGURE 4-37 Remove two (2) screws.
Accutorr V Service Manual0070-10-07024 - 21
DisassemblyRepair and Disassembly
This page intentionally left blank.
4 - 220070-10-0702Accutorr V Service Manual
5.0
Parts
Main Assembly .............................................................................................. 5-2
Front Assembly (Color LCD) ............................................................................. 5-3
—115-016544-00 *Front Assembly Service Kit (Color LCD) Includes all parts
below:
110010-20-12194Machine Pneumatic Socket Subassembly
12043-001894-00Front Bezel (Color LCD)
136101-20-46722Alarm Light Cover (6101)
146101-20-46723Silicon Keypad (6101)
156101-20-46762Key Pad Fixer 2
16M04-051003- - -Screw, Pan Head Phillips PT2.0X6
17M04-021000- - -Flat Washer
186101-20-46743Key Pad Fixer (6101)
12
13
14
15
16
18
17
PartsFront Assembly (Color LCD)
5.2Front Assembly (Color LCD)
FIGURE 5-2 Front Bezel Assembly
5 - 40070-10-0702Accutorr V Service Manual
NOTE:* To upgrade the Black & White LCD requires FRU# 801-6101-00023-00. Included in this FRU are: FRU# 801-
6101-000211-00 (Main board), 009-002037-00 (LCD signal cable), 042-004637-00 (Ferrite Fixer Plate),
051-000875-00 (Display and Key panel), 049-000280-00 (Color LCD Rubber), 021-000056-00 (LCD) for the
new assembly, and 115-016544-00. Please refer to the figures 5 -2, 5-4, 5-5 and 5-12.
390000-10-10996Spring Strip
* Upgrading the Black-and-White LCD assembly to the new Color LCD assembly requires FRU#
801-6101-00021-00(Main board),009-002037-00(LCDsignal cable), 042-004637-00(Ferrite
Fixer Plate), 051-000875-00(Display and Key panel), 049-000280-00(Color LCD Rubber),
021-000056-00(LCD) for the new assembly. Please refer to the figures 5 -2, 5-4, 5-5 and 5-12.
Front Overl
Front Overlay (6101), Italy
Front Overlay (6101), French
Front Overlay (6101), German
Front Overlay (6101), Spanish
Front Overlay (6101), Portuguese
Front Overlay (6101), Dutch
ay (6101), English
* Upgrading the Black-and-White LCD assembly to the new Color LCD assembly
requires FRU# 801-6101-00021-00 (Main board), 009-002037-00 (LCD
signal cable), 042-004637-00 (Ferrite Fixer Plate), 051-000875-00 (Display
and Key panel), 049-000280-00 (Color LCD Rubber), 021-000056-00 (LCD)
for the new assembly. Please refer to the figures 5 -2, 5-4, 5-5 and 5-12.
FIGURE 5-5 Front Shell Assembly
5 - 80070-10-0702Accutorr V Service Manual
11
ITEMPART NUMBERDESCRIPTION
—115-016543-00 Front Assembly Service Kit (Black &
White) Includes all parts below:
110010-20-12194Machine Pneumatic Socket Subassembly
446101-20-46710Front Bezel (6101)
136101-20-46722Alarm Light Cover (6101)
146101-20-46723Silicon Keypad (6101)
156101-20-46762Key Pad Fixer 2
16M04-051003- - -Screw, Pan Head Phillips PT2.0X6
17M04-021000- - -Flat Washer
186101-20-46743Key Pad Fixer (6101)
44
13
14
15
16
18
17
Front Assembly (Black and White LCD)Parts
5.3Front Assembly (Black and White LCD)
FIGURE 5-6 Front Bezel Assembly
Accutorr V Service Manual0070-10-07025 - 9
19
ITEMPART NUMBERDESCRIPTION
196101-20-46734SpO
2
Mounting Bracket (6101)
206101-30-46622Nellcor SpO
2
module package
21
801-0010-00002-00
Nellcor SpO
2
Board
22801-6101-00017-00Nellcor Power Isolation Board
23
801-0010-00018-00
Nellcor SpO
2
Flex Cable
246101-20-46719-51Nellcor SpO
2
Interface Bracket
256101-30-46621Masimo SpO
2
Module Package
26801-6101-00016-00Masimo SpO
2
Board
25
19
26
27
28
29
30
23
22
21
20
24
19
ITEMPART NUMBERDESCRIPTION
27801-6101-00015-00Masimo Power Isolation Board PCBA
28
801-0010-00019-00
Masimo SpO
2
Flex Cable
296101-20-46720-51Masimo SpO
2
Interface Bracket
306101-30-46620DPM SpO
2
Module Package
32
801-9006-00001-00
DPM SpO
2
Board
33
801-6006-00029-00
DPM SpO
2
Signal Cable
346101-20-46718-51DPM SpO
2
Interface Bracket
356101-20-46733DPM SpO
2
Interface Bracket Plate
32
33
34
35
PartsFront Assembly (Black and White LCD)
FIGURE 5-7 SpO2 Assembly
5 - 100070-10-0702Accutorr V Service Manual
46
3
47
48
49
50
51
45
Front Assembly (Black and White LCD)Parts
52
ITEMPART NUMBERDESCRIPTION
3M04-004012- - -Screw, Crosshead M3×6
45M04-011002- - -Hex Locknut with Conical Washer M3
460000-10-10997 LCD Module FSTN 320x160 LED White Backlight
476101-30-46609Display Keyboard PCBA
486101-20-46752Ferrite Fixer Plate
496101-20-46763Ferrite Fixer Plate Isolation Sheet
50M04-004015- - -Screw, Pan Head Phillips with Washer M3X8
51M04-021024- - -Large Washer
526006-20-39502LCD Display Back Plate
Front Overlay (6101), English
Front Overlay (6101), French
Front Overlay (6101), German
Front Overlay (6101), Spanish
Front Overlay (6101), Portuguese
Front Overlay (6101), Dutch
PartsFront Assembly (Black and White LCD)
FIGURE 5-9 Front Shell Assembly
ITEMPART NUMBERDESCRIPTION
—801-6101-00010-00Complete Rear Cover
Service Kit. Includes all
parts below, except 8016101-00009-00.
51M04-021024- - -Large Washer
55DA6H-20-22831Foot Cushion
56801-6101-00009-00Battery Door (6101) and
Main Board (for B&W LCD)
Main Board (for color LCD)*
* Upgrading the Black-and-White LCD assembly to the new Color LCD assembly requires FRU#
801-6101-00021-00 (Main board),009-002037-00 (LCD signal cable), 042-004637-00 (Ferrite
Fixer Plate), 051-000875-00 (Display and Key panel), 049-000280-00 (Color LCD Rubber),
021-000056-00 (LCD) for the new assembly. Please refer to the figures 5 -2, 5-4, 5-5 and 5-12.
45
86
3
96
3
97
87
88
90
89
3
91
92
93
94
95
Main Bracket AssemblyParts
FIGURE 5-12 Main Bracket Assembly
Accutorr V Service Manual0070-10-07025 - 15
NOTE: **After replacing the Main Board, a System Reconfiguration should be performed by following this
procedure:
While the monitor is powered on, press and hold the MENU key for two seconds. While the MENU key is
still depressed, press and hold the power ON/OFF key. Verify that the message “Clear system config and
restarting” appears. Release the MENU and ON/OFF keys. The monitor will shutdown and restart. Then the
message “Checking system config...” appears. After the monitor is successfully configured, the message
“System configure succeed. Restarting...” is displayed and the monitor shuts down and restarts
automatically.
* Upgrading the old pump (082-000056-00) to the new rolling pump (M6Q-100003- - -) requi
FRU# 801-6101-00018-00 (pump kit), 047-001582-00 (label), and 042-001417-00 (bracke
See section 5.7 (pg. 5-19) ‘‘NIBP Assembly (Pump 082-000056-00)’’ for the old pump assem
* Upgrading the old pump (082-000056-00) to the new rolling pump (M6Q-100003- - -)
requires FRU# 801-6101-00018-00 (pump kit), 047-001582-00 (label), and 042-00141700 (bracket). See section 5.6 (pg. 5-16) ‘‘NIBP Assembly (Pump M6Q-100003- - -)’’ for the
new rolling pump assembly.