Welch Allyn Spot Vital Signs LXi Service manual
Welch Allyn Spot Vital Signs LXi
BP
SYS
mmg
DIA
mmg
TEMP
SpO2
Patient ID 0 2 4
Weight
Height
Respiration
4 WEST
7
21
7
9
8
AM
Reading
01
3
F
5
PULSE
/min
%
62
Pain
Clear
Send/Next Reading
Enter
Service Manual
BP
SYS
mmg
DIA
mmg
TEMP
SpO2
PatientID 0 2 4
Weight
Height
Respiration
4 WEST
7
21
7
9
8
AM
Reading
01
3
F
5
PULSE
/min
%
62
Pain
Clear
Send/Next Reading
Enter
BRAUn
Welch Allyn Spot Vital Signs LXi
Service Manual
iv Welch Allyn Spot Vital Signs LXi
Copyright 2012 Welch Allyn. All rights are reserved. To support the intended use of the product described
in this publication, the purchaser of the product is permitted to copy this publication, for internal
distribution only, from the media provided by Welch Allyn. No other use, reproduction, or distribution of
this publication, or any part of it, is permitted without written permission from Welch Allyn.Welch Allyn
assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that
may result from failure to use this product in accordance with the instructions, cautions, warnings, or
statement of intended use published in this manual.
Welch Allyn, Spot Vital Signs, SureBP Technology, and SureTemp are registered trademarks of Welch
Allyn.
Braun ThermoScan is a registered trademark of the Braun Company.
LNCS is a trademark of, and SET, LNOP, and Masimo are registered trademarks of, Masimo Corporation.
Possession or purchase of a Masimo SpO2-equipped device does not convey any express or implied
license to use the device with unauthorized sensors or cables which would, alone or in combination with
this device, fall within the scope of one or more of the patents relating to this device.
Nellcor and Oxi-Max are registered trademarks of Nellcor Puritan Bennett Inc.
Health o meter is a registered trademark of Sunbeam Products, Inc. used under license.
Software in this product is Copyright Welch Allyn or its vendors. All rights are reserved. The software is
protected by United States of America copyright laws and international treaty provisions applicable
worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with
this instrument as intended in the operation of the product in which it is embedded. The software may not
be copied, decompiled, reverse-engineered, disassembled, or otherwise reduced to human-perceivable
form. This is not a sale of the software or any copy of the software; all right, title, and ownership of the
software remain with Welch Allyn or its vendors.
For information about any Welch Allyn product, call Welch Allyn Technical Support:
USA +1 800 289 2501 Australia +61 2 9638 3000
Canada +1 800 561 8797 China +86 21 6327 9631
European Call Center +353 46 90 67790 France +33 15 5695 849
Germany +49 695 098 5132 Japan +81 3 6383 0852
Latin America +1 305 669 9003 Netherlands +31 202 061 360
Singapore +65 6419 8100 South Africa +27 11 777 7555
United Kingdom +44 207 365 6780 Sweden +46 85 853 6551
Reorder #4500-89
Manual Material No. 718440 Ver. A
Welch Allyn
4341 State Street Road
Skaneateles Falls, NY
13153 USA
Printed in USA
Regulatory Affairs Representative
Welch Allyn Limited
Navan Business Park
Dublin Road
Navan, County Meath, Republic of Ireland
Service Manual v
1 - Safety Summary .........................................1
Introduction......................................................1
Warnings and Cautions.............................................1
General Warnings..............................................1
Blood Pressure Warnings........................................3
Temperature Warnings..........................................4
SpO2Warnings................................................5
General Cautions ..............................................6
Blood Pressure Cautions ........................................7
Temperature Cautions ..........................................7
SpO2Cautions ................................................7
Electrostatic Discharge (ESD) ........................................8
Symbols ........................................................9
Safety Symbols ...............................................9
Button Symbols ...............................................9
Connection Symbols ...........................................9
Agency Symbols .............................................10
2 - Overview ..............................................11
Purpose and Scope...............................................11
Other Applicable Documents .......................................11
Miscellaneous Mounting Accessories ................................12
Wall Mount Kit ...............................................12
Mobile Stand Kit .................................................14
Radio Mounting Accessory.........................................16
Barcode Reader Mounting Accessory ................................17
Warranty .......................................................18
Spot Vital Signs LXi ...........................................18
Accessories .................................................18
Service ........................................................19
User Serviceable Parts .........................................19
Technical Assistance ..........................................19
Field Replacement Units .......................................19
Service Loaners ..............................................19
Service Intervals ..............................................19
Spot Vital Signs LXi Configurations...................................20
Controls .......................................................20
Display Window .................................................22
Connections ....................................................24
Braun ThermoScan PRO 4000 Lock...............................25
Blood Pressure Hose and Cuff...................................25
Thermometer ................................................26
SpO2Sensor ................................................27
Radio ......................................................27
Quick Reference Card .........................................27
AC Power Transformer.........................................28
Printer......................................................28
Battery .....................................................29
vi Welch Allyn Spot Vital Signs LXi
3 - Functional Overview .....................................31
Self Test .......................................................31
Internal Configuration Mode ........................................32
4 - Spot Vital Signs LXi Technical Overview ....................37
System Description ..............................................37
Battery System ..............................................37
Battery Charger ..............................................37
“CPU I/O” Power Supply .......................................37
Standby Mode ...............................................38
CPU Core Power Supply .......................................38
+5V Supply ..................................................38
Clock/Calendar Power .........................................38
Mod F NIBP Power ...........................................38
SpO2and Thermometer Power ..................................38
LCDPower..................................................38
External Load (RS-232) Power ...................................39
SureTemp Plus Thermometer Interface............................39
Braun ThermoScan PRO 4000 Thermometer Interface ................39
SpO2Description ................................................39
Radio Description ................................................40
Bar Code Scanner Description ......................................40
Interface ....................................................40
Printer Description ...............................................41
Interconnect Diagram .............................................42
5 - Maintenance and Service .................................43
Cleaning .......................................................43
Spot Vital Signs LXi ...........................................43
Blood Pressure Cuff ...........................................43
Blood Pressure Hose and Cable..................................43
SureTemp Plus Thermometer ...................................44
Braun ThermoScan PRO 4000 Thermometer .......................44
SpO2Sensors................................................45
Radio ......................................................45
Printer......................................................45
Battery Replacement .............................................46
Spot Vital Signs LXi ...........................................46
Braun ThermoScan PRO 4000 ...................................46
Printer......................................................47
Spot Vital Signs LXi Firmware Upgrade CD ............................48
Spot Vital Signs LXi Radio Configuration CD ...........................48
Product Disposal.................................................48
6 - Calibration and Verification ...............................49
Terms .........................................................49
Required Test Equipment ..........................................50
Pneumatic test assembly setup .....................................50
Power Supply Test Setup ..........................................52
Service Manual vii
Battery Removal / Power Shutdown .................................53
Voltage Calibration ...............................................55
Pressure verification test ..........................................57
Blood pressure calibration .........................................62
NIBP board Initialization ........................................62
Functional tests .................................................67
Temperature Functional Check......................................77
Temperature test setup ........................................77
Changing the Calibration Set Point Temperature on the 9600 Plus Calibration
Tester ......................................................78
Welch Allyn SureTemp Plus Thermometers............................78
Braun ThermoScan Pro 4000 ....................................82
Changing the Calibration Set Point Temperature .....................85
7 - Specifications ..........................................89
Performance ....................................................89
Blood Pressure Accuracy .......................................89
Temperature Specifications .....................................90
SpO2Specifications ..............................................91
Masimo Sensor Accuracy Guide .................................91
Masimo Patents ..............................................91
Nellcor Sensor Accuracy Guide ..................................92
Nellcor Patents ...............................................92
Mechanical .....................................................93
Electrical .......................................................93
Patents ........................................................93
Batteries .......................................................93
Environmental...................................................93
Radio..........................................................94
Mechanical ..................................................94
Configuration Options .........................................94
Guidance and Manufacturer’s Declaration For Spot Vital Signs LXi Radio .....95
8 - Troubleshooting ........................................99
Error Codes.....................................................99
Radio Test.....................................................110
Service Work Checklist...........................................111
Spot LXi Radio Configuration Tool ..................................112
9 - Supplies and Accessories................................113
Blood Pressure .................................................113
Temperature ...................................................114
Pulse Oximetry .................................................115
Masimo Accessories .........................................115
Nellcor Accessories ..........................................117
Miscellaneous..................................................118
Service Contracts ...............................................119
viii Welch Allyn Spot Vital Signs LXi
10 - Field Replaceable Units ................................121
11 - Disassembly and Repair ................................127
Tool list .......................................................127
Key Pad Disassembly ............................................132
SpO2Circuit Board Disassembly ...................................133
Masimo ...................................................133
Nellcor ....................................................134
Blood Pressure Circuit Board Disassembly ...........................136
LCD Inverter Ballast Board Disassembly .............................137
LCD Disassembly ...............................................137
Pump Disassembly ..............................................138
RS232-Communication Circuit Board Disassembly .....................138
Fan and Power Circuit Board Disassembly............................139
Thermometry Circuit Board Disassembly .............................139
SureTemp Plus ..............................................139
Braun ThermoScan PRO 4000 ..................................141
12 - Repair Test Specifications ..............................143
General Unit Test ...............................................143
A-D Noise Test ..............................................143
Leak Test ..................................................143
Inflation Test ...............................................143
Dump Test .................................................143
Pneumatic Accuracy Test......................................143
Valve Control Test ...........................................144
Voltage Calibration ...........................................144
Blank Mode Current Test ......................................144
Back Light (Idle) Current Test...................................144
Valve/Pump Mode Current Test .................................144
Interface Test ...............................................144
Temperature Option Requirements .................................144
Accuracy Test...............................................144
Temperature Probe Test ......................................145
SpO2Option Requirements .......................................145
SpO2Functional Test .........................................145
SpO2Mode Current Test ......................................145
Fail Safe Test ..................................................145
Over Pressure Test ..........................................145
Over 15 mmHg .............................................145
Interconnect Diagram 1 ..........................................147
Interconnect Diagram 2 ..........................................148
1
1
Safety Summary
Introduction
All users of the Spot Vital Signs LXi must read and understand the safety summary, and
all additional specific warnings and cautions located throughout the documentation.
Warnings and Cautions
Familiarize all operating personnel with the general safety information in this summary.
Specific warnings and cautions are also found throughout this manual.
General Warnings
A warning statement in this manual identifies a condition or practice, which if not
corrected or discontinued immediately, could lead to patient injury, illness, or death.
These warnings pertain entirely to Spot Vital Signs LXi.
WARNING The information in this manual is a comprehensive guide to the
operation of Spot Vital Signs LXi. For best results, read this manual thoroughly
before using the device.
WARNING Spot Vital Signs LXi is designed for medical clinician use. Although
this manual may illustrate medical spot-check techniques, only a trained clinician
who knows how to take and interpret a patient’s vital signs should use this
device.
WARNING Spot Vital Signs LXi is not intended for use in environments that are
without health care practitioner supervision.
WARNING Spot Vital Signs LXi is not intended for continuous monitoring. Do
not leave the device unattended while taking measurements on a patient.
WARNING To ensure data integrity, save readings and clear the Spot Vital Signs
LXi display between patients.
WARNING The Spot Vital Signs LXi is not defibrillator proof.
WARNING Spot Vital Signs LXi is not intended for use during patient transport.
WARNING This device is not suitable for use in the presence of a flammable
anesthetic mixture with air or oxygen or nitrous oxide. An explosion may result.
2 Safety Summary Welch Allyn Spot Vital Signs LXi
WARNING To ensure patient safety, use only accessories and supplies (i.e.,
cuffs, hoses, temperature probes, SpO2sensors, etc.) recommended for or
supplied with Spot Vital Signs LXi. Using unapproved accessories with Spot Vital
Signs LXi can affect patient and/or operator safety.
WARNING Prevent fluid from entering any connectors on the device. Should
this occur, dry the connectors with warm air. Check the accuracy of all operating
functions.
WARNING Every three months, inspect the blood pressure cuff, SpO2cable,
and other accessories for fraying or other damage. Replace as necessary.
WARNING Do not use Spot Vital Signs LXi on patients who are on heart/lung
machines.
WARNING Electric shock hazard. There are no user-serviceable parts inside Spot
Vital Signs LXi other than battery replacement (see “Battery Replacement” on
page 46). Only an individual specifically trained and approved for the repair and/or
verification of this specific Welch Allyn product may perform maintenance
procedures specifically described in this manual. For service, refer the device to
an Authorized Service Center.
WARNING This device is not intended for hand-held use during operation.
WARNING Do not autoclave.
WARNING This device complies with current required standards for
electromagnetic interference and should not present problems to other
equipment or be affected by other devices. As a precaution, avoid using this
device in close proximity to other equipment.
WARNING Welch Allyn is not responsible for the integrity of any mounting
installation. Welch Allyn recommends that the customer contact their Biomedical
Engineering Department or maintenance service to ensure professional
installation for safety and reliability of any mounting accessory.
WARNING The Spot Vital Signs LXi consists of high-quality precision parts.
Protect it from severe impact and shock. A qualified service technician must
check any Spot Vital Signs LXi that is dropped or damaged for proper operation
prior to further use. Do not use the Spot Vital Signs LXi if you notice any signs of
damage. Contact the Welch Allyn Technical Support Department for assistance.
WARNING Do not use an SpO2finger clip sensor and a blood pressure cuff
simultaneously on the same limb. Doing so may result in inaccurate pulse rate
and perfusion readings.
WARNING All signal input and output (I/O) connectors are intended for
connection of only devices complying with IEC 60601-1, or other IEC standards
(for example, IEC 60950) as appropriate to the device. Connecting additional
devices to the Spot LXi may increase leakage currents. To maintain operator and
patient safety, it is necessary to consider the requirements of IEC 60601-1-1.
WARNING For proper patient electrical isolation, use only a Welch Allyn power
supply (4500-101A) to charge Spot Vital Signs LXi.
WARNING Do not use the manufacturer supplied charger for the weight scale
while it is attached to Spot LXi.
Service Manual Safety Summary 3
Blood Pressure Warnings
These warnings pertain to the Spot Vital Signs LXi blood pressure feature.
WARNING Spot Vital Signs LXi is not intended to measure BLOOD PRESSURE
on neonatal patients. The AAMI SP10:2002 standard defines neonates as children
28 days or less of age if born at term (37 weeks gestation or more); otherwise up
to 44 gestational weeks.
WARNING To ensure pediatric blood pressure accuracy and safety, the Child
Reusable Two-Piece Blood Pressure Cuff (4500-01), Infant Durable One-Piece
Cuff (5082-82-4MQ), and the Infant Disposable One-Piece Cuff (5082-92-4MQ)
are the smallest cuffs approved for use with young children and infants. The
child’s arm must fit within the range markings on the cuff.
WARNING Avoid compression of the blood pressure hose or cuff tubing of Spot
Vital Signs LXi. This may cause system errors to occur in the device.
WARNING Patients who are experiencing moderate to severe arrhythmias may
give inaccurate blood pressure measurements.
WARNING Spot Vital Signs LXi does not operate effectively on patients who are
experiencing convulsions or tremors.
WARNING Use only Welch Allyn blood pressure cuffs and/or hoses. Using other
manufacturers’ blood pressure cuffs and/or hoses may produce inaccurate blood
pressure readings.
WARNING When several blood pressure measurements are taken on the same
patient, regularly check the cuff site and extremity for possible ischemia, purpura,
and/or neuropathy.
WARNING Do not place the cuff on any extremity that is used for intravenous
infusions or any area where circulation is compromised.
WARNING Excessive cuff tightness may cause venous congestion and
discoloration of the limb.
WARNING Wrapping the cuff too loosely (preventing proper inflation) may result
in errors.
WARNING Do not change the connector(s) on the blood pressure cuff tubing of
this device to luer type. Luer type connectors are commonly used in intravenous
infusion systems. Using the luer connectors on blood pressure cuff tubing
creates the risk that the blood pressure tubing could be mistakenly connected to
a patient's intravenous line, resulting in the introduction of air into the patient's
circulatory system.
4 Safety Summary Welch Allyn Spot Vital Signs LXi
Temperature Warnings
These warnings pertain to the Spot Vital Signs LXi temperature feature.
SureTemp®Plus
These warnings are specific to the SureTemp Plus thermometer option.
WARNING Use only Welch Allyn probe covers. Using other manufacturers’
probe covers or no probe cover may produce temperature measurement errors
and/or inaccuracy.
WARNING Always use a probe cover whenever coming into contact with a
patient.
WARNING Long-term continuous monitoring beyond three to five minutes is
not recommended in any mode.
WARNING Oral/axillary probes (blue ejection button at top of probe) and blue
removable probe wells are used for taking oral and axillary temperatures only.
Rectal probes (red ejection button) and red removable probe wells are used for
taking rectal temperatures only. Use of the probe at the wrong site will result in
temperature errors. Use of the incorrect removable probe well could result in
patient cross-contamination.
WARNING The thermometer connectors and probe are not waterproof. Do not
immerse or drip fluids on these items. Should this occur, dry the connectors and
probe with warm air. Check all functions for proper operation and accuracy.
WARNING Do not take an axillary temperature through patient’s clothing. Direct
probe cover to skin contact is required.
WARNING Do not autoclave.
WARNING Use Welch Allyn single-use disposable probe covers to limit patient
cross-contamination.
WARNING Incorrect insertion of probe can cause bowel perforation.
WARNING Washing hands greatly reduces the risk of cross-contamination and
nosocomial infection.
WARNING To ensure optimal accuracy, always confirm that the correct mode is
selected.
Service Manual Safety Summary 5
Braun Thermoscan PRO 4000
These warnings are specific to the Braun ThermoScan PRO 4000 thermometer option.
WARNING Keep the probe window clean, dry, and undamaged at all times to
ensure accurate measurements. To protect the probe window, always keep the
thermometer in the storage cover while transporting or when not in use.
WARNING Only use Braun ThermoScan probe covers with this thermometer.
Using other manufacturer’s probe covers or no probe cover may produce
temperature measurement errors and/or inaccuracies. If the thermometer is used
without a probe cover attached, clean the lens (see “Braun ThermoScan PRO
4000 Thermometer” on page 44).
WARNING Do not autoclave.
WARNING The thermometer is not waterproof. Do not immerse or drip fluids
on it. Should this occur, dry the thermometer with warm air. Check for proper
operation and accuracy.
SpO2Warnings
These warnings pertain to the Spot Vital Signs LXi SpO2feature.
WARNING Only use Spot Vital Signs LXi with Masimo or Nellcor SpO2option
with Masimo or Nellcor brand sensors and accessories, respectively. Using the
wrong or unapproved sensors or cables may cause improper performance.
WARNING The SpO2sensor and extension cables are intended for use only for
pulse oximetry measurements. Do not attempt to connect these cables to a PC
or any similar device.
WARNING Before using, carefully read the sensor Directions for Use, including
all warnings, cautions, and instructions.
WARNING Do not use a damaged sensor or pulse oximetry cable or a sensor
with exposed optical components.
WARNING Incorrect application or a long duration of use of an SpO2sensor may
cause tissue damage. Inspect the sensor site periodically as directed in the
sensor’s Directions for Use.
WARNING Certain ambient environmental conditions, sensor application errors,
and certain patient conditions may affect SpO2readings and pulse signal.
WARNING Do not immerse the sensor or patient cables in water, solvents, or
cleaning solutions (the sensors and connections are not waterproof). Do not use
irradiation, steam, or ethylene oxide for sterilization.
WARNING The SpO2in the Spot Vital Signs LXi device is not intended for use
as an apnea monitor.
WARNING Consider the SpO2an early warning device. As a trend toward
patient deoxygenation is indicated, use laboratory instruments to analyze blood
samples to completely understand the patient’s condition.
6 Safety Summary Welch Allyn Spot Vital Signs LXi
WARNING Tissue damage can be caused by incorrect application or duration of
use of a Nellcor OxiMax sensor. Inspect the sensor site as directed in the sensor
Directions for Use.
WARNING Do not use the sensors during magnetic resonance imaging (MRI)
scanning. Induced current could potentially cause burns. The MS board pulse
oximeter may affect the MRI image, and the MRI unit may affect the accuracy of
the oximetry measurements.
WARNING Carefully route patient cabling to reduce the possibility of patient
entanglement or strangulation.
WARNING Failure to cover the Nellcor OxiMax sensor site with opaque material
in high ambient light conditions may result in inaccurate measurements.
General Cautions
A caution statement in this manual identifies a condition or practice, which if not
corrected or discontinued immediately, could lead to equipment failure, equipment
damage, or data loss.
These cautions pertain to the entire Spot Vital Signs LXi device.
Caution If the accuracy of any measurement is in question, check the patient’s
vital sign(s) with an alternate method and then check to verify the device is
functioning properly.
Caution Place the device on a secure surface or use one of the optional
mounting accessories.
Caution Do not place fluids on or near the device.
Caution It is recommended that the device is used within stated operating
temperature ranges (see “Environmental” on page 93). The device will not meet
its performance specifications if used outside these temperatures ranges.
Caution Always unplug the AC power transformer from the outlet before
moving the mobile stand to a new location.
Caution The basket has a three-pound weight limit. Take care not to exceed
this limit.
Caution When connecting a Health o meter®weight scale, only operate the
scale with battery power. Remove and discard the scale's AC power cord.
Caution When using the Health o meter scale, remove the two hex nuts on the
RS-232 cable, as supplied, before screwing the cable into the scale base.
Service Manual Safety Summary 7
Blood Pressure Cautions
These cautions pertain to the Spot Vital Signs LXi blood pressure feature.
Caution Minimize extremity and cuff motion during blood pressure readings.
Caution If the blood pressure cuff is not at heart level, note the difference in
reading due to the hydrostatic effect. Add the value of 1.80 mmHg (.2 kPa) to the
displayed reading for every inch (2.5 cm) above heart level. Subtract the value of
1.80 mmHg (.2 kPa) from the displayed reading for every inch (2.5 cm) below
heart level.
Caution Proper blood pressure cuff size and placement is essential to the
accuracy of the blood pressure determination. See Reusable Two-Piece Cuff
Measurements or Durable One-Piece Cuff Measurements of the Directions for
Use for sizing information.
Caution The position and physiologic condition of the subject can affect a blood
pressure reading.
Temperature Cautions
These cautions pertain to the Spot Vital Signs LXi temperature feature.
SpO2Cautions
These cautions pertain to the Spot Vital Signs LXi SpO2feature.
Caution The SureTemp Plus feature only operates with the probe well in place.
Caution Do not use alkaline batteries in the Braun ThermoScan PRO 4000.
Caution Biting the probe tip may result in damage to the probe.
Caution The pulse oximeter is calibrated to determine the percentage of
arterial oxygen saturation of functional hemoglobin. Significant levels of
dysfunctional hemoglobin such as carboxyhemoglobin or methemoglobin may
affect the accuracy of the measurement.
Caution Some sensors may not be appropriate for a particular patient. If at
least 10 seconds of perfusion pulses cannot be observed for a given sensor,
change sensor location or sensor type for perfusion to resume.
Caution Physiological conditions, medical procedures, or external agents that
may interfere with the pulse oximeter’s ability to detect and display
measurements include dysfunctional hemoglobin, arterial dyes, low perfusion,
dark pigment, and externally applied coloring agents such as nail polish, dye, or
pigmented cream.
Caution When selecting a sensor, consider the patient’s weight and activity
level, the adequacy of perfusion, the available sensor sites, the need for sterility,
and the anticipated duration of monitoring.
8 Safety Summary Welch Allyn Spot Vital Signs LXi
Electrostatic Discharge (ESD)
Electrostatic discharge is a sudden current flowing from a charged object to another
object or to ground. Electrostatic charges can accumulate on common items such as
foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging
material, and untreated plastic bags and work folders, to name only a few.
Electronic components and assemblies, if not properly protected against ESD, can be
permanently damaged or destroyed when near or in contact with electrostatically charged
objects. When you handle components or assemblies that are not in protective bags and
you are not sure whether they are static-sensitive, assume that they are static-sensitive
and handle them accordingly.
• Perform all service procedures in a static-protected environment. Always use
techniques and equipment designed to protect personnel and equipment from
electrostatic discharge.
• Remove static-sensitive components and assemblies from their static-shielding bags
only at static-safe workstations - a properly grounded table and grounded floor mat and only when you are wearing a grounded wrist strap (with a resistor of at least 1
megohm in series) or other grounding device.
• Use only grounded tools when inserting, adjusting, or removing static-sensitive
components and assemblies.
• Remove or insert static-sensitive components and assemblies only with monitor
power turned off.
• Insert and seal static-sensitive components and assemblies into their original staticshielding bags before removing them from static-protected areas.
Always test your ground strap, bench mat, conductive work surface, and ground cord
before removing components and assemblies from their protective bags and before
beginning any disassembly or assembly procedures.
Service Manual Safety Summary 9
Symbols
The following symbols are associated with the Spot Vital Signs LXi.
Safety Symbols
Button Symbols
Identifies information within the
manual to avoid injury.
Caution: consult accompanying
documents
Handle with Care Transport Temperature
Storage Humidity Recycle
MAX
Class II Equipment Equipment is not protected against
Type BF Equipment On/Off
Recycle the product separate from
other disposables, see “Product
Disposal” on page 48.
Mode of Operation: Continuous DC Power In
Pb
IPXØ
Identifies information within the
manual to avoid equipment failure.
Internally Powered, Lead Acid
Battery
the ingress of liquid.
Non-ionizing radiation (RF
transmitter)
Connection Symbols
Navigation Buttons Select
Blood Pressure Memory
MEM
Power On/Off
USB Connection Serial Port Connection
10 Safety Summary Welch Allyn Spot Vital Signs LXi
Agency Symbols
CONFORMS TO:
UL STD 60601-1
IEC 60601-1
The CE mark on this product indicates that it has been tested to and conforms with
the provisions noted within the 93/42/EEC Medical Device Directive.
0297
Regulatory Affairs Representative
Welch Allyn Limited
Navan Business Park
Dublin Road
Navan, County Meath, Republic of Ireland
11
2
Overview
Purpose and Scope
The Spot Vital Signs LXi Service Manual is intended as a reference for maintenance and
repair to the field replaceable unit (FRU) level and are listed on page 121.
Note
This manual provides the technical qualified service person with troubleshooting
information, repair procedures, and calibration and performance verification instructions. A
technical overview of the Spot Vital Signs LXi subsystems is provided as an introduction
to the device’s circuitry and pneumatics.
This manual is intended for the technical qualified service personnel. Service training
classes on Welch Allyn’s products are available. Contact Welch Allyn Technical Support for
information.
Opening the Spot Vital Signs device case requires recalibration of specific
functions. This includes any internal components that were replaced. Calibration
requires the use of the Welch Allyn Spot LXi Tool.
Other Applicable Documents
The Spot Vital Signs LXi Directions for Use manual is also available. Refer to this
document for information other than maintenance and repair.
Welch Allyn 9600 Plus Calibration Tester Directions for Use - for all models.
Braun ThermoScan PRO 4000 User’s Guide - for models 450E0, 45NE0, 45ME0.
Masimo Directions for Use - for models 45MT0, 45ME0.
Nellcor Directions for Use - for models 45NT0, 45NE0.
MOUNT KIT
a
12 Overview Welch Allyn Spot Vital Signs LXi
Miscellaneous Mounting Accessories
Wall Mount Kit
2
EF: 4701-62
terial #: 711890 Rev. B
1
3
Attach bracket to wall before
assembling basket.
4
}
Welch Allyn is NOT responsible for the integrity of any wall
mounting interface.
5
hardware to mount the device to a surface.
recommends that the customer contact their Biomedical
Engineering Department or maintenance service to ensure
professional installation, safety, and reliability of any
mounting accessory.
Ensure you are using the appropriate
Welch Allyn
Service Manual Overview 13
14 Overview Welch Allyn Spot Vital Signs LXi
Mobile Stand Kit
Service Manual Overview 15
16 Overview Welch Allyn Spot Vital Signs LXi
Radio Mounting Accessory
A
2
B
1
3
5
4
Service Manual Overview 17
Barcode Reader Mounting Accessory
18 Overview Welch Allyn Spot Vital Signs LXi
Warranty
Spot Vital Signs LXi
Welch Allyn warrants that the Spot Vital Signs LXi Radio products meet the labeled
specifications of the products and will be free from defects in materials and workmanship
that occur within one year after the date of purchase.
The date of purchase is: 1) the date specified in our records if you purchased the Product
directly from us, 2) the date specified in the warranty registration card that we ask you to
send to us, or 3) the date of purchase of product from the authorized Welch Allyn
distributor as documented from a receipt from said distributor.
This warranty does not cover damage caused by: 1) handling during shipping, 2) use or
maintenance contrary to labeled instructions, 3) alteration or repair by anyone not
authorized by Welch Allyn, and 4) accidents.
If a Product or accessory covered by this warranty is determined to be defective because
of defective materials, components, or workmanship, and the warranty claim is made
within the warranty period described above, Welch Allyn will, at its discretion, repair or
replace the defective Product or accessory free of charge.
You must obtain a service notification number from Welch Allyn to return your Product
before you send it to Welch Allyn’s designated service center for repair. Contact Welch
Allyn Technical Support.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. WELCH ALLYN’S OBLIGATION UNDER
THIS WARRANTY IS LIMITED TO REPAIR OR REPLACEMENT OF PRODUCTS
CONTAINING A DEFECT. WELCH ALLYN IS NOT RESPONSIBLE FOR ANY INDIRECT OR
CONSEQUENTIAL DAMAGES RESULTING FROM A PRODUCT DEFECT COVERED BY
THE WARRANTY.
Accessories
Refer to the manufacturer’s Directions for Use for the Masimo and Nellcor finger sensor
and cable warranty.
Refer to the Directions for Use provided with the Welch Allyn Blood Pressure Cuff for
warranty information.
The SureTemp Plus probe is covered by a one-year warranty and the SureTemp Plus probe
well is covered by a 90-day warranty against original defects in material and workmanship.
Probe covers are intended for single-use only.
The Braun ThermoScan PRO 4000 is covered by a three-year warranty against original
defects in material or workmanship.
The printer is covered by a one-year warranty against original defects in material or
workmanship.
The barcode scanner is covered by a five-year warranty against original defects in material
or workmanship.
Service Manual Overview 19
Service
Caution Unauthorized repairs will void the warranty.
All repairs on products under warranty must be completed by Welch Allyn or Welch Allyn
certified service personnel in accordance with warranty guidelines. See the Welch Allyn
Partners In Care™web site (http://www.welchallyn.com/promotions/services/default.htm)
for a description of the different levels of services offered.
User Serviceable Parts
For user serviceable parts available see “Supplies and Accessories” on page 113.
Technical Assistance
If you have an equipment problem that you cannot resolve, call the Welch Allyn Service
Center nearest you for assistance. Technical service telephone support is available on
normal business days.
If you are advised to return a product to Welch Allyn for repair or routine maintenance,
schedule the repair with the service center nearest you.
Before returning a product for repair, you must obtain authorization from Welch Allyn.
Service personnel will give you a Service Notification number. Please note this number on
the outside of your shipping box. Returns without a Service Notification number will not
be accepted for delivery.
Field Replacement Units
See “Field Replaceable Units” on page 121.
Service Loaners
Service loaners or exchanges may be provided depending on the specific Partners In
Care™agreement in place for the device. Loaners for products repaired while under the
original warranty, may be provided free of charge and are shipped within 48 hours of
notification of need.
For service repairs outside of warranty or outside of service agreement are available for a
nominal charge and shipment is subject to availability. Loaners are shipped pre-paid;
however, this charge is added to the service charges.
Service Intervals
Calibrate the Spot Vital Signs LXi on an annual basis for blood pressure, temperature, and
SpO2 accuracy.
20 Overview Welch Allyn Spot Vital Signs LXi
Spot Vital Signs LXi Configurations
Table 1. Available Versions of Spot Vital Signs LXi
REF Description
450T0 SureBP with SureTemp Plus Thermometer
450E0 SureBP with Braun ThermoScan PRO 4000 Thermometer
45MT0 SureBP with Masimo SpO
45ME0 SureBP with Masimo SpO
45NT0 SureBP with Nellcor SpO
45NE0 SureBP with Nellcor SpO
and SureTemp Plus Thermometer
2
and Braun ThermoScan PRO 4000 Thermometer
2
and SureTemp Plus Thermometer
2
and Braun ThermoScan PRO 4000 Thermometer
2
Controls
Figure 1. Spot Vital Signs LXi Front Panel with SureTemp Plus Thermometer
SureTemp Plus
thermometer:
remove the probe
from the probe well to
BP
SYS
mm g
DIA
mm g
TEMP
SpO2
9
21
7
8
4 WEST
7
Reading
01
AM
3
F
5
PULSE
%
/min
take a temperature.
Removable probe
well: store the
temperature probe
here when not in use;
remove to clean or
replace to eliminate
cross-contamination.
62
Patient ID 0 2 4
Navigation button: move
throughout the options in
the Navigation Window or
to increase/decrease
parameter units.
Weight
Height
Respiration
Pain
Clear
Send/Next Reading
Enter
Probe cover
storage area:
storage space for one
box of probe covers.
Select button:
accepts the current
option.
Power button: controls
power to the device.
Charging LED: indicates
when device is plugged in and
charging the battery.
Blood Pressure Start/Stop button:
initiates a new blood pressure cycle.
Pressing again aborts an active blood
pressure measurement.
Memory button:
recalls up to 50 most
recent readings.
Service Manual Overview 21
Figure 2. Spot Vital Signs LXi Front Panel with Braun ThermoScan PRO 4000 Thermometer
Braun ThermoScan PRO 4000
thermometer: store the probe
covers toward the back of the
thermometer housing; remove the
BP
SYS
mm g
DIA
mm g
TEMP
SpO2
9
21
7
8
4 WEST
7
Reading
01
AM
3
F
5
PULSE
%
/min
thermometer to access the covers.
Navigation button: move
throughout the options in
the Navigation Window or
to increase/decrease
parameter units.
Power button: controls
power to the device.
Patient ID 0 2 4
Weight
Height
Respiration
Charging LED: indicates
when device is plugged in
and charging the battery.
Pain
Clear
Send/Next Reading
62
Enter
BRAUn
Memory button:
recalls up to 50 most
recent measurements.
Blood Pressure Start/Stop button:
initiates a new blood pressure cycle.
Pressing again aborts an active blood
pressure measurement.
Select button:
accepts the current
option.
Charging LED: indicates
the thermometer battery
is charging.
22 Overview Welch Allyn Spot Vital Signs LXi
Display Window
Note
Before using Spot Vital Signs LXi for the first time, you must program it using
the initial configuration screen.
1. Press the Power button. The display window shows the initial configuration screen.
Figure 3. Initial Configuration Screen
Change Local Defaults Menu
Model No.: 4 NTO
Serial No. 200 040004
Language:
BP Units:
Temperature Units:
eight Units:
Weight Units:
Date Format:
Date:
Time Format:
Time:
Select
2. Use the Select button to access the options and accept the entries, and use the
Navigation buttons to move through the menu.
3. The word “Exit” appears at the bottom of the list after you have programmed all
items in the menu. You must program all items before you can start to use the device.
4. Scroll to Exit and press the Select button to save the entries.
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