Welch Allyn CONNEX User manual

Welch Allyn CONNEX User manual

Welch Allyn Connex

®

Wall System

Integrated

Service manual

Software version 2.3X

© 2018 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, Connex, SureTemp, and SureBP are registered trademarks of Welch Allyn.

Oridion is a registered trademark of Oridion Medical 1987 Ltd. No implied license. Possession or purchase of this device does not convey any express or implied license to use the device with unauthorized CO2 sampling products which would, alone, or in combination with this device, fall within the scope of one or more of the patents relating to this device and/or CO2 sampling products.

RRa is a trademark of; and SET, SpHb, rainbow, and Masimo are registered trademarks of Masimo

Corporation. Possession or purchase of a Masimo-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 is a registered trademark of Covidien, PLC.

Braun and ThermoScan are registered trademarks of Braun GmbH.

Nonin is a registered trademark of Nonin Medical, Inc.

Bluetooth is a registered trademark of Bluetooth SIG.

Welch Allyn has provided Clinical Dynamics of CT, LLC, the calibration tables (CALTables) for use in its

AccuPulse and AccuSim NIBP Simulators. For more information, click this link .

Software in this product is Copyright 2018 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.

This product may contain software known as “free” or “open source” software (FOSS). Welch Allyn uses and supports the use of FOSS. We believe that FOSS makes our products more robust and secure, and gives us and our customers greater flexibility. To learn more about FOSS that may be used in this product, please visit our FOSS website at www.welchallyn.com/opensource . Where required, a copy of

FOSS source code is available on our FOSS website.

For patent information, please visit www.welchallyn.com/patents .

For information about any Welch Allyn product, contact your local Welch Allyn representative: www.welchallyn.com/about/company/locations.htm

.

DIR 80021577 Ver. A

Revision date: 2018-02

Welch Allyn, Inc.

4341 State Street Road

Skaneateles Falls, NY 13153 USA www.welchallyn.com

Regulatory Affairs Representative

Welch Allyn Limited

Navan Business Park

Dublin Road

Navan, County Meath

Republic of Ireland

Contents

Symbols ................................................................................................... 1

Safety ....................................................................................................... 5

Warnings and cautions ......................................................................................... 5

General safety considerations .............................................................................. 6

Electrostatic discharge (ESD) ............................................................................... 6

Overview .................................................................................................. 9

Purpose and scope .............................................................................................. 9

Technical support services ................................................................................. 10

Recommended service intervals ........................................................................ 14

The Welch Allyn Service Tool ............................................................................ 14

Battery performance .......................................................................................... 16

Controls, indicators, and connectors ................................................... 19

Service menu ......................................................................................... 23

Access the Service screens ............................................................................... 23

General tab ......................................................................................................... 23

Self-tests tab ...................................................................................................... 26

Logs tab ............................................................................................................. 26

Device tab .......................................................................................................... 27

Licensing tab ...................................................................................................... 27

Power-up sequence ............................................................................... 29

Troubleshooting .................................................................................... 31

Symptoms and solutions ................................................................................... 31

Technical alarm messages ................................................................................. 45

Disassembly and repair ........................................................................ 59

Required tools and equipment ........................................................................... 61

Disassembly overview ....................................................................................... 62

Section A ................................................................................................ 63

Power down the device ..................................................................................... 63

Exploded view, front exterior ............................................................................. 64

Exploded view, rear interior ............................................................................... 71

Section B .............................................................................................. 103

Power down the device ................................................................................... 103

iii

iv Contents Welch Allyn Connex

®

Integrated Wall System

Exploded view, front exterior ........................................................................... 105

Exploded view, rear interior ............................................................................. 112

Functional verification and calibration .............................................. 145

Functional verification tests ............................................................................. 145

Basic functional verification checks ................................................................. 148

Electrical safety testing ....................................................................... 163

Ground stud connector .................................................................................... 164

Options, upgrades, and licenses ........................................................ 165

Available options, upgrades, and licenses ....................................................... 166

Install options ................................................................................................... 168

Host firmware requirements ............................................................................ 170

Masimo parameter upgrades ........................................................................... 171

Configure options ............................................................................................. 171

Field replaceable units ........................................................................ 173

Front housing, handle module assembly, and modules - front exterior exploded

view ................................................................................................................. 173

Front housing, handle housing, and chassis - rear interior exploded view ....... 177

Miscellaneous parts ......................................................................................... 185

Licenses ........................................................................................................... 186

Partners in Care service and support agreements ........................................... 186

Service and repair training ................................................................................ 186

Appendices .......................................................................................... 187

Decontamination and cleaning requirements .................................................. 187

Configuration options ....................................................................................... 188

Factory defaults ............................................................................................... 190

Disassembly and repair reference ................................................................... 201

Connex Integrated Wall System interconnect diagram ................................... 209

Service record .................................................................................................. 211

Symbols

For information on the origin of these symbols, see the Welch Allyn symbols glossary: www.welchallyn.com/symbolsglossary .

Documentation symbols

WARNING

The warning statements in this manual identify conditions or practices that could lead to illness, injury, or death.

CAUTION

The caution statements in this manual identify conditions or practices that could result in damage to the equipment or other property, or loss of data. This definition applies to both yellow and black and white symbols.

WARNING

Hot surface. Do not touch.

Follow the operating instructions/directions for use (DFU) — mandatory action.

A copy of the DFU is available on this website.

A printed copy of the DFU can be ordered from Welch Allyn for delivery within 7 days.

Power symbols

Power on/Display power-saving

[recent models]

Equipotential terminal

Power on/Display power-saving

[older models]

(on the display) monitor is plugged into Alternating Current power

Battery absent or faulty

1

2 Symbols

(on the monitor, green indicator)

Alternating Current power present, battery fully charged

(on the monitor, amber indicator)

Alternating Current power present, battery is charging

Alternating Current (AC)

Li-ion battery

Connectivity symbols

USB

Wireless signal strength

• Best (4 bars)

• Good (3 bars)

• Fair (2 bars)

• Weak (1 bar)

• No signal (no bars)

• No connection (blank)

Connected to central station

Miscellaneous symbols

CO2 sampling input

Manufacturer

Reorder number

Do not reuse

Welch Allyn Connex

®

Integrated Wall System

Battery charge level

Battery cover

Rechargeable battery

AC input power

Ethernet RJ-45

Nurse call

[recent models]

Nurse call

[older models]

Disconnected from central station

CO2 sampling output/exhaust

Limited rotation/Turn completely to right

Serial number

China RoHS markings for control of pollution caused by electronic information products. XX indicates

Environmentally Friendly Use

Period in years.

Service manual

Nonionizing electromagnetic radiation

Restrictions for use of wireless device in Europe. European

Community's Class 2 radio equipment.

Defibrillation-proof Type BF applied parts

Atmospheric pressure limitation

Transport and storage temperature range

Maximum safe working load limits

(specific values presented with symbol)

Recycle

Symbols 3

Recycle the product separate from other disposables

Call for maintenance

Defibrillation-proof Type CF applied parts

Not for injection

Authorized Representative of the

European Community

Mass in kilograms (kg)

IPX1

(Vital Signs

Monitor)

IPX0

(Integrated Wall

System)

Degree of protection provided by the enclosure with respect to harmful ingress of liquids

Do not expose to open flame

4 Symbols Welch Allyn Connex

®

Integrated Wall System

Safety

All users of the system must read and understand all safety information presented in this manual before using or repairing the system.

United States federal law restricts this device to sale, distribution, or use by or on the order of a licensed medical practitioner.

Warnings and cautions

WARNING

Safety risk. Make frequent electrical and visual checks on cables, sensors, and electrode wires. All cables, sensors, and electrode wires must be inspected and properly maintained and in proper working order to allow the equipment to function properly and to protect patients.

WARNING

Safety risk. Place the system and accessories in locations where they cannot harm the patient should they fall from a shelf or mount.

WARNING

Fire and explosion hazard. Do not operate the system in the presence of a flammable anesthetic mixture with air, oxygen, or nitrous oxide; in oxygen-enriched environments; or in any other potentially explosive environment.

WARNING

Inaccurate measurement risk. Dust and particle ingress can affect the accuracy of blood pressure measurements. Use the system in clean environments to ensure measurement accuracy. If you notice dust or lint build-up on the system’s vent openings, have the system inspected and cleaned by a qualified service technician.

CAUTION

Before disassembling the device or installing options, disconnect the patient from the system, power down the device, and disconnect the AC power and any attached accessories (for example, SpO2 sensors, blood pressure hoses and cuffs, and temperature probes) from the device.

CAUTION

To ensure that the system meets its performance specifications, store and use the system in an environment that maintains the specified temperature and humidity ranges.

CAUTION

The system may not function properly if dropped or damaged.

Protect it from severe impact and shock. Do not use the system if you notice any signs of damage.

5

6 Safety Welch Allyn Connex

®

Integrated Wall System

CAUTION

Do not connect more than one patient to a system or connect more than one system to a patient.

CAUTION

Do not operate the system in the presence of magnetic resonance imaging (MRI) or hyperbaric chambers.

CAUTION

Do not autoclave the system. Autoclave accessories only if the manufacturer’s instructions clearly approve it.

General safety considerations

• If the system detects an unrecoverable problem, it displays an error message. For more information see “Troubleshooting.”

• To ensure patient safety, use only accessories recommended or supplied by Welch

Allyn. (See the accessories list in the

Welch Allyn Connex Integrated Wall System

Directions for use

on the user documentation CD or http://www.welchallyn.com

.

Always use accessories according to your facility’s standards and according to the manufacturer’s recommendations and instructions. Always follow the manufacturer’s directions for use.

• Welch Allyn recommends that only Welch Allyn service personnel or an authorized repair center perform warranty service. Performing unauthorized service on a device that is within warranty may void the warranty.

Electrostatic discharge (ESD)

CAUTION

Electrostatic discharge (ESD) can damage or destroy electronic components. Handle static-sensitive components only at static-safe workstation.

CAUTION

Assume that all electrical and electronic components of the system are static-sensitive.

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 staticsensitive 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.

Service manual Safety 7

• 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 system 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.

8 Safety Welch Allyn Connex

®

Integrated Wall System

Overview

Purpose and scope

This manual is a reference for periodic preventive maintenance and corrective service procedures for the Welch Allyn Connex Integrated Wall System, firmware version 2.3X.

It is intended for use only by trained and qualified service personnel.

Corrective service is supported to the level of field-replaceable units. These include circuit-board assemblies and some subassemblies, case parts, and other parts.

CAUTION

No component-level repair of circuit boards and subassemblies is supported. Use only the repair procedures described in this manual.

WARNING

When performing a service procedure, follow the instructions exactly as presented in this manual. Failure to do so could damage the device, invalidate the product warranty, and cause serious personal injury.

Find instructions for functional testing and performance verification in the Welch Allyn

Service Tool help files.

This manual applies only to this device. For servicing of any other device, see the service manual for the specific device.

Service work not described in this manual must be performed by qualified service personnel at the factory or at an authorized Welch Allyn service center.

Related documents

When using this manual, refer to the following:

Welch Allyn Connex® Devices Directions for use, Software version 2.3X

(on the user documentation CD)

• Welch Allyn Service Tool http://www.welchallyn.com/en/service-support/service-center/service-tool.html

Welch Allyn Service Tool Installation and configuration guide

http://www.welchallyn.com/en/service-support/service-center/service-tool.html

Welch Allyn Braun ThermoScan® PRO 6000 Ear Thermometer, Service manual

(80020325) click here to download the PDF

Welch Allyn 9600 Plus Calibration Tester Directions for use

Welch Allyn Radio Configuration guide

click here to download the PDF

• Welch Allyn website: www.welchallyn.com

9

10 Overview Welch Allyn Connex

®

Integrated Wall System

Technical support services

Welch Allyn offers the following technical support services:

• Telephone support

• Loaner equipment

• Service agreements

• Service training

• Replacement service parts

• Product service

For information on any of these services, go to www.welchallyn.com

.

Service loaners

For warranty or non-warranty repairs not covered under a support agreement, loaners are available for a nominal charge, subject to availability. Payment is required prior to shipment for all loaners not covered under a support agreement.

Welch Allyn Service Centers that provide repair service for this product can, on request, loan a device for use while the device is being repaired. Loaned devices are provided free of charge for products repaired while under a support agreement that includes a free loaner provision.

Loaner equipment for the individual component modules is not available.

Service options

Partners in Care service agreements

While product warranties provide basic assurance of Welch Allyn hardware quality, they may not include the full range of services and support you need. Welch Allyn offers premium service and support through our

Partners in Care

program. Whether you service your own devices and require a minimum of support or rely on us to service your device, Welch Allyn provides a program that will meet your needs. A list of available service and support agreements is presented in the "Field replaceable units" section of this manual. For more information, visit our web site at www.welchallyn.com

or call your sales representative.

Warranty service

All repairs on products under warranty must be performed or approved by Welch Allyn.

Refer all warranty service to Welch Allyn Product Service or another authorized Welch

Allyn Service Center. Obtain a Return Material Authorization (RMA) number for all returns to Welch Allyn Product Service.

CAUTION

Unauthorized repairs will void the product warranty.

Non-warranty service

Welch Allyn product service and authorized service centers support non-warranty repairs.

Contact any Welch Allyn regional service center for pricing and service options.

Service manual Overview 11

Welch Allyn offers modular repair parts for sale to support non-warranty service. This service must be performed only by qualified end-user biomedical/clinical engineers using this service manual.

Service training is available from Welch Allyn for biomedical/clinical engineers. Follow this link for more information.

Repairs

A Welch Allyn Service Center must perform all repairs on products under warranty, unless you have purchased a Welch Allyn Partners in Care Biomed agreement allowing you to service the device while under warranty.

CAUTION

Unauthorized repairs will void the product warranty.

Qualified service personnel or a Welch Allyn Service Center should repair products out of warranty.

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.

Welch Allyn Technical Support

If you have a problem with the device that you cannot resolve, call the Welch Allyn

Technical Support Center nearest you for assistance. A representative will assist you in troubleshooting the problem and will make every effort to solve the problem over the phone, potentially avoiding an unnecessary return.

To expedite response to your issue, be prepared to provide details on how (steps executed) and when (time and date) the problem occurred. Also, log and configuration files captured on the device can assist with diagnosis and troubleshooting. You can easily save these files from the device to a flash drive using controls on the Service tab.

See the "Service menu" section of this manual for details.

If your product requires warranty, extended warranty, or non-warranty repair service, a

Welch Allyn Technical Support representative will record all necessary information to issue an RMA number. The support representative will provide you with the address of the Welch Allyn Service Center to send your device to.

Technical support is available during local business hours.

Returning products

When returning a product to Welch Allyn for service, ensure that you have the following information:

• Product name, model number, and serial number. This information may be found on the product and serial number labels on the bottom of the device.

12 Overview Welch Allyn Connex

®

Integrated Wall System

• A complete return shipping address.

• A contact name and phone number.

• Any special shipping instructions.

• A purchase order number or credit card number if the product is not covered by a warranty.

• A Partners in Care contract number if product is covered under a service agreement.

• A full description of the problem or service request.

Unless noted in the RMA, the device will be updated to the current software version. If you prefer that the device not be updated, please state "Do not update software" in the service request.

Note

When requesting an upgrade, check the "Options, upgrades, and licenses" section to determine if a software upgrade is required.

1. Obtain an RMA number:

• Visit us on the web at www.welchallyn.com/customer-self-service.htm

, or

• Contact Welch Allyn to make a request.

Note

Welch Allyn does not accept returned products without an

RMA.

2. Ship the device to Welch Allyn, observing these rules: a. Remove from the package the battery, all hoses, connectors, cables, sensors, power cords, and other ancillary products and equipment, except those items that might be associated with the problem.

b. Follow shipping and handling requirements regarding Lithium-ion batteries to comply with new IATA regulations.

Requirements for returning Lithium-ion batteries

• Remove the Lithium-ion battery from the device. You cannot ship these devices with batteries installed.

• Follow packaging requirements (presented next in this section)

• Do not ship any battery that has been physically damaged or shows signs of leakage.

• Do not ship any battery that has been recalled by the supplier or manufacturer.

• Do not ship any waste batteries that should be recycled or discarded.

• Do not ship multiple batteries together.

• Use ground transportation only to ship Lithium-ion batteries.

Packaging requirements for Lithium-ion batteries and associated devices

Service manual Overview 13

• Use packaging provided by Welch Allyn or the battery manufacturer to pack the battery. Seal the battery in the anti-static bag and place it in the shipping box. Return shipments without approved packing materials will not be accepted.

Note

If the original shipping carton or replacement battery shipping box is unavailable, consult the manufacturer website for information regarding shipping Lithiumion batteries: http://www.iata.org/lithiumbatteries

• If returning both the battery and the device, pack the battery and the device separately.

• If returning multiple batteries, pack and ship each battery individually. Do not consolidate multiple batteries in a single package.

c. Clean the device.

Note

To ensure safe receipt of your device by the service center and to expedite processing and return of the device to you,

thoroughly clean all residues from the device before you ship it to Welch Allyn

. For decontamination and cleaning requirements, see the appendices.

If a returned device is found to be contaminated with bodily fluids, it will be returned at the owner’s expense.

United States federal regulations prohibit the processing of any device contaminated with blood-borne pathogens.

Welch Allyn thoroughly cleans all returned devices on receipt, but any device that cannot be adequately cleaned cannot be repaired.

d. Pack the device. Put the device, enclosed in a plastic bag

with a packing list

, into the original shipping carton with the original packing materials or into another appropriate shipping carton, and seal appropriately for shipping.

Remember that the device and any batteries must be packed and shipped separately.

e. Write the Welch Allyn RMA number with the Welch Allyn address on the outside of the shipping carton.

WARNING

Safety risk. Do not ship any battery that has been physically damaged or shows signs of leakage unless you receive specific instructions which meet the requirements for the shipment of Lithium batteries.

Dispose of damaged or leaking batteries in an environmentally safe manner consistent with local regulations.

Note

WARNING

Safety risk. Do not pack a defective battery in checked or carry-on baggage if traveling by air.

In the United States, the applicable regulations can be found in the Code of Federal Regulations (CFR). Refer to

49 CFR 173.185 for shipping lithium batteries by air or ground. Use 49 CFR 172.102 sections 29, 188, 189, A54,

A55, A100, A101, A103, and A104 to find the special provisions for shipping lithium batteries.

14 Overview Welch Allyn Connex

®

Integrated Wall System

Recommended service intervals

To confirm that the device is functioning within the design specifications, perform periodic service as indicated in the following table. Customers who have the Standard unlicensed edition of the Welch Allyn Service Tool can perform the basic functional verification and calibration procedures referenced in the table by following the instructions in this manual. If you have the Gold licensed edition of the service tool, use the tool to perform a complete functional verification and calibration of the device in lieu of performing the basic tests.

Component

NIBP module

SpO2 module

SpHb parameter

RRa parameter

SureTemp Plus

ECG

Braun ThermoScan PRO 6000

Braun ThermoScan PRO 4000

Battery

Service interval

Annually

Annually

Annually

N/A

Annually

N/A

Annually

Annually

300 charge cycles

Service procedure

Basic functional verification

Basic functional verification

Basic functional verification

N/A

Basic functional verification

N/A

Basic functional verification

Basic functional verification

Replace the battery

Use the service tool, Gold licensed edition, to perform a complete functional verification and calibration of the device whenever any of the following conditions exist:

• Based on the basic functional verification, the device does not meet specifications

• The device has been dropped or otherwise damaged

• The device is malfunctioning

• The case has been opened

• An internal part has been replaced (battery excluded)

Note

For instructions on using the Gold licensed edition, see the service tool help files.

Maintenance

For device maintenance information, see “Maintenance and service” in the wall system's directions for use. Covered topics include the following:

• Inspecting and cleaning the system and accessories

• Changing the battery

The Welch Allyn Service Tool

The Welch Allyn Service Tool is available in the following editions:

Service manual Overview 15

Standard unlicensed

: Download from http://www.welchallyn.com/service tool .

Gold licensed

: Required to perform complete functional verification and calibration.

This edition requires an additional license. For more information about acquiring this license, contact Welch Allyn.

Note

To qualify for the Gold license, you must attend the

Welch Allyn technical training course or complete online training for the device.

Clinicians and technical service personnel can use the service tool to manage and maintain supported Welch Allyn products. You can use the service tool to do the following:

Review device information

. When connected to the device, the service tool lists installed modules, installed firmware and hardware versions, warranty and repair information, status, and usage history.

Receive notifications when periodic maintenance is needed

. The service tool can help you manage and maintain your entire inventory of supported Welch Allyn products. Through the remote service function, the service tool can connect to

Welch Allyn Customer Service. With this functionality you can automatically receive firmware updates and feature upgrades for your supported products, including software upgrades for the service tool.

Install updates and upgrades

. The service tool can read the firmware version for each module and check for available updates or upgrades.

Create a work list

. The work list provides information about service actions— referred to as work orders—that are waiting for you to perform on your maintained devices. Work orders may include periodic calibrations, upgrades, or license installations.

Schedule periodic maintenance

. You can use the service tool to set the service interval for each maintained device.

View and save logs

. You can download and save log files from the device for analysis to help diagnose and identify reported issues.

Create user accounts

. Administrators can create user accounts and set permission levels to control access to the features, allowing one group to perform administrative tasks and another to perform service tasks. Restricting access prevents the service tool from being used to make unauthorized changes on a connected device.

Perform functional verification and calibration

. The service tool can check any device requiring calibration and, if necessary, calibrate the device to match the design specifications. This feature is not supported for all products and requires the service tool, Gold licensed edition, for each supported product.

Recover devices

. In the rare case where a device can no longer boot because of corrupted firmware, the service tool can connect the device to Welch Allyn Technical

Support to reinstall the firmware.

Extensible

. The service tool software accepts new plug-ins to support future Welch

Allyn products.

Some of these features are enabled for any user (Standard unlicensed edition). Others require special user account privileges or a Welch Allyn service contract (Gold licensed edition). If you require gold-level support for a Welch Allyn product, please contact

Welch Allyn technical support.

16 Overview Welch Allyn Connex

®

Integrated Wall System

Battery performance

About the battery

Note

The battery in the wall system provides backup power during a power outage, not power for normal use. Except during cleaning and maintenance activities, the wall system should remain connected to AC power at all times.

The device uses a rechargeable Lithium-ion smart battery. Internal circuitry enables the battery to report its condition to the device. The device displays the battery status via the

LED power indicator, icons on the screen, and status messages appearing in the Device

Status area of the display. Battery information may be collected using the service tool.

New batteries are shipped from the manufacturer with a 30 percent charge to extend shelf life. When installing a new battery in the device, you must plug the device into AC power to wake up the battery. If the AC power is not applied to the device, the new battery will appear discharged.

The Device Status area displays a low-battery status message when 30 minutes of power remain and again when 5 minutes remain.

Battery charging is provided by the device’s internal power supply.

For a complete list of battery specifications, see the device’s directions for use.

Best practices

The following practices help to extend the life of the battery and the device.

WARNING

Safety risk. When handling and storing Lithium batteries: Avoid mechanical or electrical abuse. Batteries may explode or cause burns, if disassembled, crushed or exposed to fire or high temperatures. Do not short or install with incorrect polarity.

• Whenever possible, keep the monitor plugged in to charge the battery.

• Remove the battery when storing the device for an extended amount of time.

• Replace batteries that trigger a low battery status message when fully charged.

• Do not use damaged or leaking batteries.

• Store batteries with a 30 to 50 percent charge.

• Store batteries within the temperature range indicated for each period:

○ For storage less than 30 days: Maintain temperature between –4 °F and 122 °F

(–20 °C and 50 °C).

○ For storage between 30 days and 90 days: Maintain temperature between –4 °F and 104 °F (–20 °C and 40 °C).

○ For storage more than 90 days up to 2 years: Maintain temperature between –4

°F and 95 °F (–20 °C and 35 °C).

• Recycle batteries where ever possible. In the United States call 1-877-723-1297 for information about recycling your Lithium-ion battery or go to the Call2Recycle website at http://www.call2recycle.org

for additional information.

• When recycling is not an option dispose of batteries in an environmentally safe manner consistent with local regulations.

Service manual

Factors affecting battery operating time

The following settings and conditions affect the battery operating time:

• The display brightness setting

• The display power-saver setting

• The device power-down setting

• Frequency and duration of alarms and alerts

• Amount of motion artifact during NIBP measurements

• Radio searching for an access point

Overview 17

18 Overview Welch Allyn Connex

®

Integrated Wall System

Controls, indicators, and connectors

Your model might not contain all of these features.

Note

Front View

No. Feature Description

1 Physical assessment instruments - Handles and handle cradles

Handles accept any 3.5V Welch Allyn instrument head.

Handle cradles support using one handle at a time. A handle turns on automatically when you remove it from a cradle and turns off when you return it.

2 Rheostat

3 Exhaust vents

4 LCD screen

5 Storage compartment

Light output adjustment located on each handle. Turn clockwise to increase light output; turn counterclockwise to decrease light output.

Provide openings for heat to escape and cool the device.

1024 x 600 color touchscreen provides a graphical user interface.

6 Expansion slots

Provides covered storage for additional probe covers and other small accessories.

Provide space to add modules.

7 SureTemp® Plus thermometer probe cover storage area

Provides storage for thermometer probe covers.

8 SureTemp® Plus thermometer probe Supports temperature measurements from oral, axillary, and rectal sites.

19

20 Controls, indicators, and connectors Welch Allyn Connex

®

Integrated Wall System

No. Feature Description

9 Braun ThermoScan® PRO thermometer and dock

Support temperature measurements from the ear. Dock charges the thermometer battery.

10 SureTemp® Plus thermometer connector Secures the probe connection to the wall system.

11 Blood pressure and pulse oximetry

12 Power switch and LED

See front underside view for more detail.

Power-on/Standby switch.

The LED indicates the charging status when connected to AC power:

• Green: The battery is charged.

• Amber: The battery is charging.

13 USB/Comms cover

14 Light bar

15 Speaker

16 Specula dispenser

Houses light bar.

Provides access to host USB connections for optional accessories and some routing for cords and cables.

Provides a visual alarm with red and amber LEDs.

Provides tones. A piezo beeper inside the monitor provides backup.

Dispenses KleenSpec® disposable specula in pediatric (2.75 mm) and adult (4.25 mm) sizes.

Front underside views

(Left: USB/Comms cover attached; Right: USB/Comms cover removed)

No. Feature

1 Retention screws

2 Blood pressure

3 Pulse oximetry

4 USB-to-computer connector

5 Power connection

Description

Attach USB/Comms cover.

Self-contained module for easy replacement. Supports duallumen or single-lumen hoses.

Optional Nellcor (SpO2) or Masimo Rainbow SET (SpO2 or combined SpO2/SpHb) in a self-contained module for easy replacement.

Provides a connection to an external computer for testing, data transfer, and software upgrades.

Provides an external AC power connection.

Service manual Controls, indicators, and connectors 21

Back view

No. Feature

6 Ground lug (equipotential terminal)

7 USB connectors

8 USB cable retainer

Description

Supports electrical safety testing; terminal for connecting a potential equalization conductor.

Provides access to host USB connections for optional accessories.

Reduces strain on USB cables and connectors; helps prevent cables from disconnecting.

No. Feature

1 Recess for mounting bracket

2 Ethernet RJ-45

3 Li-ion battery

4 Nurse call

Accessory bin

Description

Secures the monitor when mounted on the wall.

Provides a hardwired connection to the computer network.

Provides backup power to wall system.

Provides a connection to the hospital nurse call system.

No. Feature

1 Accessory bin

2 SpO2 holder

Description

Stores accessories and organizes cables.

Provides location to wrap SpO2 cable and attach SpO2 finger clip.

22 Controls, indicators, and connectors

Mounting materials

Welch Allyn Connex

®

Integrated Wall System

No. Feature

1 Wall mounting rail bracket and hardware

2 Accessory bin mounting bracket and hardware

Description

Secures the wall system to the wall.

Secure accessory bin to the wall and provide routing and strain relief for power cord.

Service menu

The Service tab is located inside Advanced settings. The Advanced tab provides password-protected access to the monitor's Advanced settings (or Admin mode), enabling nurse administrators, biomedical engineers, and/or service engineers to configure specific features. The Advanced tab also presents read-only information about the monitor.

Access the Service screens

Note

1. Access the Advanced settings.

a. Touch the

Settings

tab.

b. Touch the

Advanced

tab.

c. Touch

Enter password

.

d. Enter your password and touch

OK

.

Note

You cannot access Advanced settings if sensors or physiological alarms are active or if vital sign measurements are displayed.

The default password is

6345

, but your facility or department might have a different password configured on your device.

Note

If you lose or forget your Advanced settings password, contact Customer Service, who will guide you through the password reset process.

The General tab appears.

2. Touch the

Service

tab.

The

General

tab appears.

3. Perform service tasks by navigating to the desired tabs and making selections.

4. When you finish your service tasks, touch

Exit

.

The

Home

tab appears.

General tab

Restore factory default settings

Note

This process deletes the custom data file. All custom data will be lost.

23

24 Service menu Welch Allyn Connex

®

Integrated Wall System

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

General

tab.

3. Restore factory default settings:

• To restore radio settings to factory default values, touch

Radio settings

.

• To restore all current settings to factory default values, touch

All settings

.

A confirmation dialog appears.

4. Touch

OK

.

The factory default settings are restored.

If you selected

Radio settings

, the radio reboots, and the device remains powered on.

If you selected

All settings

, the device reboots.

Save the device configuration or custom data to a drive

You can save the device configuration or custom data (custom modifiers and custom scoring) to a USB flash drive. You can use the saved configuration to restore the device’s configuration or to copy this configuration to use on other devices. You can use the saved custom data to restore custom modifiers or custom scores or you can copy them to another device.

Note

Note

Not all flash drives are supported.

When saving the device configuration, the location ID and asset tag information is not included in the configuration file.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the

General

tab.

4. Touch

Save to USB

.

A confirmation dialog appears. You can save the device configuration or custom data if either custom scores or custom modifiers are present.

5. Touch

OK

.

If the selected file or files already exist on the USB flash drive, a popup dialog appears with the message

Device configuration file already exists. Select OK to continue with save and overwrite existing file or cancel

.

6. Touch

OK

to save the data to the USB drive or touch

Cancel

to exit without saving.

A save confirmation message appears.

Note

Note

If the USB drive is incompatible, an information message

Unable to save configuration to USB

message appears. Touch

OK

to continue.

The configuration file is saved as CONFIG.PMP. The custom data file is saved as CUSTOMDATA.XML.

Load a device configuration or custom data

You can load a configuration from a USB flash drive to the device.

Service manual Service menu 25

Note

Note

Not all flash drives are supported.

If your configuration includes radio parameters, make sure the radio is enabled. The radio must be enabled before you can import radio parameters.

Note

Note

If a device setting is not available in the configuration file, the setting returns to the factory default. This might be the case when the configuration file was saved from a device with a different firmware version.

Configuration files cannot be cloned between devices with different host software, except where the version change is minor.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the

General

tab.

4. Select

Configure from USB

.

A confirmation dialog appears.

5. Select

Device configuration and/or Custom data XML

.

A confirmation dialog appears to confirm overwriting the existing configuration.

6. Select

OK

to proceed, or

Cancel

to quit.

The configuration from the USB flash drive overwrites the configuration on the device, and the device reboots.

Note

Note

Note

If device configuration data is not present on the USB drive, that option will be disabled.

If custom modifiers are not present on the USB drive, that option will be disabled.

If the configuration file is incompatible, an

Unable to read configuration from USB

message appears. This might be the case if the configuration file was cloned from a device with different software version.

Delete custom data

To delete custom data, you must restore the monitor to factory defaults. Restoring the monitor to factory defaults also deletes all configuration settings.

To restore the custom configuration settings, save the configuration file to a drive and reload the file after restoring factory defaults.

To determine if custom data is loaded on the device, complete these steps:

1. Go to the Service screens as described in "Access the Service screens."

2. Touch the

Device

tab.

A Custom file line displays the configuration name and the CRC in the Firmware version column.

26 Service menu Welch Allyn Connex

®

Integrated Wall System

Enter an asset tag

You can enter an alpha-numeric identifier in the data field to serve as an asset tag for device identification.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

General

tab.

3. Touch

4. Touch

OK

.

Note

and enter up to 20 characters.

If the device language changes, the asset tag remains unchanged.

Send device information to PartnerConnect

The device sends technical information, such as log files, to PartnerConnect periodically.

You can also manually send this information at any time by following this procedure.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

General

tab.

3. Touch

Sync with server

.

Self-tests tab

Calibrate the touchscreen

This tab calibrates the touchscreen, if needed.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

Self-tests

tab.

3. Touch

Start

.

a. Touch the location indicated by the device. The device checks the current calibration. If the location coordinates and touched location match, a Calibration

Confirmation dialog appears. Touch

OK

to finish.

b. If the locations do not match, a calibration failure dialog appears. Touch

Calibrate

, and then touch the screen as indicated. When calibration is complete, a Calibration Confirmation dialog appears. Touch

OK

to finish.

Logs tab

View an error or event log

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

Logs

tab.

3. View a log report.

• To view an error log, select

Error.

• To view an event log, select

Event.

Service manual Service menu 27

Save error and event logs to a USB flash drive

This feature is available in software versions 1.71.03 and later.

You can save a copy of the error and event logs to a USB flash drive.

Note

Not all flash drives are supported.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the

Logs

tab.

4. Touch

Save to USB

.

A confirmation dialog appears.

5. Touch

OK

.

Copies of both log files are saved to the drive.

Device tab

View device and module information

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

Device

tab.

Device and module information appears for you to view.

Licensing tab

View device licenses

Note

After activating a new license, make sure to restart the device to complete the activation process.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the

Licensing

tab.

A list of available licenses appears. Checks indicate installed licenses.

28 Service menu Welch Allyn Connex

®

Integrated Wall System

Power-up sequence

The system performs a power-on self test (POST) each time the device is powered on.

During power up, the device performs a comprehensive self test of the software. If software testing is successful, the device then tests internal hardware. If all tests are successful, the system completes power up and the Home tab appears.

To perform the POST:

1. Disconnect any patient cables connected to the device.

2. Insert a fully charged battery into the device.

3. Upon each power up, confirm the following: a. The light bar flashes amber.

b. The Welch Allyn startup screen appears.

c. A beep sounds, followed by one chime.

Note

If no chimes sound, replace the speaker as specified in

“Replace the speaker.” d. The product line logo appears at the bottom of the screen.

e. The Home tab appears.

WARNING

Equipment failure risk. The device includes a fan that circulates air through the device. If the fan does not run when you power up the device, remove it from use and inform qualified service personnel immediately. Do not use the device until the problem is corrected.

If the internal self-check is successful, the device shows its normal functions with all values blank and the device is ready for operation. If the self-check fails, an error message appears in the Device status area at the top of the screen. If a fault that could adversely affect the product is detected, the device enters a safe mode and stops monitoring patients. The device remains in safe mode until it is turned off or until it shuts down automatically after a period of inactivity.

If a system error is detected, the device becomes inactive until you press or until the device shuts down automatically. The device displays a system fault message that contains a wrench icon( ) and a system fault code to aid service personnel and engineers in diagnosing the problem.

While in safe mode, the red LED bar and the piezo buzzer cycle on and off.

29

30 Power-up sequence Welch Allyn Connex

®

Integrated Wall System

Troubleshooting

This section provides the following tables to help you troubleshoot the system.

Symptoms and solutions

: These tables list symptoms you might observe, list possible causes, and suggest actions that might eliminate the problem.

Technical alarm messages

: These tables list messages generated by the system software when a problem is detected. The tables explain possible causes and suggest actions that can resolve the problem.

These tables can help you diagnose and fix a problem. They do not replace basic troubleshooting skills. You must still trace the source of the problem to the board or module level to decide the best course of action.

Welch Allyn does not support component-level repair to the board or module.

For available replacement parts, see “Field Replaceable Units.”

WARNING

Do not perform troubleshooting on a system that is emitting smoke or exhibits other signs of excessive overheating. Disconnect the system from AC power and call Welch Allyn Technical Support immediately.

CAUTION

Replace parts, components, or accessories only with parts supplied or approved by Welch Allyn. The use of any other parts can lead to inferior performance and will void the product warranty.

Symptoms and solutions

Power

Symptom

The device does not power up

Possible cause

A new battery was installed

The AC power is disconnected

The power cord is defective

The battery is discharged

The power button is defective

Suggested action

Connect AC power to wake up the battery.

Connect AC power.

Replace the power cord.

Charge the battery.

Replace the power button.

31

32 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Symptom Possible cause Suggested action

The battery doesn’t charge or run time is low

An internal connection is faulty

The power supply is defective

The battery is defective

The main board is defective

The battery is defective

Check the power-flex cable connection at J6 on the main board.

Check the AC power harness connections from the IEC connector to the power supply.

Check the power harness from the power supply J2 to J30 on the main board.

Check the battery power harness from J2 on the battery connector board to J29 on the main board.

Check the output voltage on the power supply. The voltage should be 15 V ± 0.45V DC. If it is not, replace the power supply.

Charge the battery for 5 hours. If the battery icon on the display still shows an empty battery symbol, replace the battery.

Replace the main board.

Charge the battery for 5 hours. If the battery icon on the display still shows an empty battery symbol, replace the battery.

The battery connector board is defective Check the battery connector board for an open short or broken connector and replace if necessary.

The battery has reached the end of its useful life Use the service tool to check cycle count. If the cycle count exceeds 300, replace the battery.

Hardware

Mechanical Symptom

Noisy fan

Possible cause

Dust build up

Fan is out of balance

Suggested action

Use canned air to blow dust out of fan.

Replace fan.

Service manual Troubleshooting 33

Mechanical Symptom

Cracks in housing

Possible cause

Non-approved cleaning agents

Suggested action

Replace plastic housing as necessary.

Use only approved cleaning agents.

Display

Symptom

The display is blank when the power is on

Possible cause

The touchscreen does not respond Software error

Suggested action

Reboot the device. Press and hold the power button until the device shuts down.

Note

Any configuration settings not saved as default will be lost.

Press the power button to restart.

The touchscreen is out of calibration

The touchscreen lock is activated

In Advanced Settings, touch the

Service > Self-tests

tabs, then recalibrate the screen.

To unlock the touchscreen, touch

at the bottom of the screen.

To disable the touchscreen lock, touch the

Settings > Device

tabs, then uncheck

Allow display lock timeout

.

An internal connection is faulty

A display flex cable is broken

Check the connection at J48 on the main board with display flex cable.

Replace the touchscreen and display assembly.

Replace the main board.

The main board has a faulty touchscreen controller

Excessive force or prolonged rubbing in an area of the touchscreen

Replace the touchscreen.

The device is in Power-Saver mode Wake the display by touching the screen or the power button.

The device powered down after a period of inactivity

An internal connection is faulty

Turn on the device by pressing the power button. In Advanced

Settings, touch the

General >

Display

tabs, then set

Device power down

to the desired interval.

Check the display harness connections at the display and

34 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Symptom

The display is dim

Possible cause Suggested action

J19 on the main board. Replace the cable if damaged.

Replace the cable.

A cable is damaged

The brightness setting is too low Increase the brightness setting.

Touch the

Settings > Device

tabs, touch

Defaults

, then set

Display brightness

to the desired level.

The display has reached the end of its useful life Replace the display.

User interface

Symptom Possible cause Suggested action

Unable to access advanced settings or enter the advanced settings code

Patient monitoring is active or being simulated Discontinue patient monitoring or stop the simulation.

The parameter alarm is on

Intervals are turned on

Desired profile does not appear in the Profiles tab

The profile license is not installed

Dismiss the alarm.

Stop intervals.

The profile is not enabled

In Advanced settings, touch the

Service > Licensing

tabs.

Verify that the profile license box is checked. If not, purchase the license and install it using the service tool.

In Advanced settings, touch the

Device

tab, then check the profile(s) you want to enable.

Communication

Symptom Possible cause

Cannot communicate through the

USB client connection

The battery charge is low

The communications board does not receive power

The USB client is defective

Suggested action

Connect the device to AC power and allow the battery to fully charge.

Check the voltage from J49 on the main board for +5.0, ±0.5V

DC. Replace the main board if necessary.

Test the connection by connecting a PC running the service tool. Verify that the service tool is configured properly on the PC to

Service manual Troubleshooting 35

Symptom Possible cause Suggested action

communicate with the device.

See the service tool help files.

Replace the power cable to the communications board.

USB accessories do not communicate with the monitor

The accessory is defective Replace with a known good accessory.

The communications board is not receiving power Check the voltage from J49 on the main board for +5.0, ±0.5V

DC. Replace the main board if necessary.

One or more USB host connections are defective Test the connection with a USB thumb drive. If no power or enumeration is present, such as an LED on a thumb drive, replace the communications board.

A USB connection from the communications board to the main board is faulty

Verify that the USB cables are connected correctly.

Replace the USB cables.

The device does not communicate via Ethernet with the computer network

The device is not configured properly Check the settings with your network administrator.

The communications board is not receiving power Check the voltage from J49 on the main board for +5.0, ±0.5V

DC. Replace the main board if necessary.

The Ethernet connection from the main board is faulty

Test the internal Ethernet cable.

Replace if necessary.

Verify that the shim is installed, if required, on the Ethernet cable connector at J11. See the reassembly notes for the main board.

The network Ethernet switches are not set to the correct speed to work with the device

Set the switches to 10 Mbps full duplex.

The cable run to the switch is too long

The radio does not connect to the network

The device is out of range of the access point

The device is not configured properly

The antenna is defective

Use a shorter patch cable.

Check the network status screen’s RSSI value.

Check the settings with your network administrator.

Check the antenna cable and antenna connection. Replace the cable and antenna if necessary.

36 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Symptom Possible cause Suggested action

The communications board is not receiving power Check the voltage from J49 on the main board for +5.0, ±0.5V

DC. Replace the main board if necessary.

Alarms

Symptom

The light bar does not turn on

Possible cause

No alarm was triggered

There is a faulty connection

The light-bar board is defective

No audible alarm occurs

The main board is defective

No alarm was triggered

The alarm audio is set to Off

The alarm audio is set too low

Suggested action

Verify that the light bar flashes when the system starts.

Verify that the alarm is triggered by a visual indicator in the message status area and an audio alarm occurs.

Check the light-bar harness and connections at the light bar and

J46 on the main board. Replace the defective cable if necessary.

Apply +3.3V to pin 1 of the harness and ground to pin 2.

Verify that the amber LEDs illuminate. Connect the ground to pin 3. Verify that the red LEDs illuminate. If one or both do not illuminate, replace the LED light bar.

Verify that there are +3.3V at pin

1 of J46 on the main board.

Verify that the alarm is triggered by a visual indicator in the message status area and light bar. Listen for audible sounds on start up.

Touch the

Alarms > General

tabs, then select

Alarm audio on

.

In Advanced settings, touch the

General > Alarms

tabs, then disable

Allow user to turn off general audio

.

Touch the

Alarms > General

tabs, then set

Volume

to the desired level.

In Advanced settings, touch the

General > Alarms

tabs, then

Service manual

Symptom Possible cause

There is a faulty connection

The speaker is defective

The main board is defective

Troubleshooting 37

Suggested action

set

Minimum alarm volume

to the desired level.

Check the speaker harness and connections at the speaker and

J12 on the main board. Replace the defective cable if needed.

Replace the speaker.

Test speaker output using an oscilloscope on J12.

NIBP

Symptom Possible cause Suggested action

The NIBP frame on the display is blank

The USB cable is defective

The NIBP module is not connected

The NIBP module is not functional

Replace the USB cable.

Check the internal USB connection.

Check the error logs for NIBP errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

If no NIBP error is logged, the main board might be defective

Replace the main board if necessary.

SpO2

Symptom Possible cause Suggested action

The SpO2 frame on the display is blank

The USB cable is defective

The SpO2 module is not connected

The SpO2 module is not functional

Replace the USB cable.

Check the internal USB connection.

Check the error logs for SpO2 errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

If no SpO2 error is logged, the main board might be defective

Replace the main board if necessary.

38 Troubleshooting

SpHb

Welch Allyn Connex

®

Integrated Wall System

Symptom

The SpHb frame is unavailable

Possible cause

The SpHb frame on the display is blank

The UI license is not installed.

The wrong sensor is connected.

The sensor or cable expired.

The sensor or cable is defective.

The Masimo SpO2 module does not have the

SpHb parameter enabled.

The selected profile does not support SpHb.

Suggested action

Purchase a license and install the license using the service tool.

Use a sensor that supports the

SpHb parameter.

Replace the sensor or cable.

Replace the sensor or cable.

Purchase the parameter and install using the service tool.

Change the profile to Intervals

Monitoring or Continuous

Monitoring.

ECG

Symptom

No LTA alarm associated with patient injury or death

No LTA or ECG tile shows

Arrhythmia detection off

Possible cause

LTA license not installed

V-Tach, V- Fib, Asystole detection disabled

Invalid data

Alarms off in advanced settings

No license

ECG module unable to detect arrhythmias

No ECG pane

Suggested action

Remove device from service, contact Welch Allyn Technical

Support, and return to Welch

Allyn for service.

Turn on alarms.

Install license.

Contact Welch Allyn Technical

Support.

Replace the module if necessary.

Check ECG module LED.

Check cable.

ECG tile disabled

Module not connected

Faulty patient cable

Faulty module cable

CVSM software does not support ECG

Profile not set to Continuous Monitoring

Patient type set to Neonate

Update software.

Set profile to Continuous

Monitoring.

Change patient type to Adult or

Pediatric.

Service manual Troubleshooting 39

Symptom Possible cause Suggested action

No waveform

Snapshot button is disabled

Start button not activated

ECG gain too high

Patient type set to Neonate

Device is not capable of printing

Touch

Start

on ECG tile to begin waveform streaming.

Reduce ECG gain.

Change patient type to Adult or

Pediatric.

Noisy waveform

Poor lead placement

No pacer or ECG tile shows pacer detection off

Pacer detection Off

No alarming snapshot was autoprinted

50 or 60 Hz filter disabled Enable filter.

Wrong mains filter value selected (50 Hz versus

60 Hz)

Set the filter to the correct mains frequency for your location.

ECG module unable to detect pacer

Automatic print on ECG alarm disabled

See DFU for proper placement.

Touch the

Settings > Setup

tabs, then touch the

ECG

vertical tab. Enable

Patient has a pacemaker

.

Contact Welch Allyn Technical

Support.

Replace the module if necessary.

In Advanced settings, touch the

Parameters

tab, then touch the

ECG

vertical tab. Enable

Automatic print on ECG alarm

.

See printer section for print failures.

Review ECG snapshots on the device.

Wait for up to one minute for the button to enable.

Module LED off

Module LED yellow

Module LED steady green

Module LED flashing green

An alarming snapshot is in progress

Less than one minute has elapsed between snapshots

Module is not receiving power

Internal error

Module powered on

Sending data

Replace cable.

Power cycle device or disconnect and then reconnect cable.

Working as designed.

Working as designed.

40 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Weight scale

Symptom Possible cause

Weight does not appear in manual parameter frame

The weight was not selected in Advanced settings

The weight scale is not licensed

The weight scale is not connected

The weight scale is not configured

Suggested action

In Advanced settings, touch the

Parameters

tab, then select

Weight

.

Note

You can select only four manual parameters.

Purchase a license and install the license using the service tool.

Check cables and connections.

Use the service tool to test connectivity. Replace cables.

Consult the scale directions for use.

Temperature

Symptom

The temperature frame on the display is blank

Possible cause Suggested action

The USB cable is defective

The temperature module is not connected

Replace the USB cable.

Check the internal USB connection.

The temperature module is not functional Check the error logs for temperature errors. See the service tool help files for details on specific errors and suggested actions.

If no temperature error is logged, the main board might be defective

Replace the main board if necessary.

Braun ThermoScan PRO 4000 thermometer

Symptom Possible cause Suggested action

The thermometer batteries don’t charge

The dock LED is green, but the battery is low or depleted

The rechargeable battery pack no longer takes a charge

Replace the rechargeable battery pack.

Primary AA batteries are installed in the thermometer

Replace the batteries with a rechargeable battery pack.

Primary AA batteries are installed in the thermometer

The dock is defective

Replace the batteries with a rechargeable battery pack.

Replace the dock.

Service manual Troubleshooting 41

Symptom

Thermometer readings do not transfer to the device

Possible cause Suggested action

The external USB cable is unplugged Check the external USB connection.

The USB bus has stopped communicating with the Braun dock. (The device displays wrench error

#00000014.)

Reboot the host device.

Note

For additional troubleshooting tips for the thermometer, see the manufacturer’s product documentation.

Braun ThermoScan PRO 6000 thermometer

Symptom Possible cause

Braun measurements are inaccurate Probe lens is displaced

Temperature tile displays ++

Braun displays HI

Use inconsistent with DFU

Suggested action

Examine lens for displacement. If you observe a gap in the seam between the bezel and the lens, replace the thermometer.

See DFU for proper operation. Perform the Braun functional verification test using the service tool or the manual test described in this manual. Replace as necessary.

Replace the thermometer. Review cleaning procedures in the DFU.

Ingress of cleaning solutions has corroded the electronics

Temperature taken is not within typical human temperature range. HI will be displayed when temperature is higher than 108°F (42.2°C).

Change probe cover to reset. Then, make sure thermometer is properly inserted and take a new temperature.

Temperature tile displays - -

Braun displays LO

Temperature taken is not within typical human temperature range. LO will be displayed when temperature is lower than 68°F (20°C).

Braun displays “POS” error The infrared monitor cannot find a temperature equilibrium and allows no measurement.

Change the probe cover to reset.

Restrict patient movement and ensure that the positioning of the probe is correct and remains stable while taking new temperature.

42 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Symptom

Braun displays “Err” error

Possible cause Suggested action

Ambient temperature is not within the allowed operating range (50 – 104 °F or 10 – 40 °C) or changing too rapidly.

Wait 20 seconds until thermometer turns off automatically, then turn on again. Ensure thermometer and patient are in an environment for 30 minutes where the temperature is between 50

°F and 104 °F or 10 °C and 40 °C.

Braun display is blank or displays all icons

System error

Wait 20 seconds until the thermometer turns off automatically, then turn on again. If error persists, reset the thermometer by removing the batteries and putting them back in.

If error still persists, batteries are dead.

Insert new batteries.

If error still persists, contact local

Welch Allyn Service Center or representative.

Braun displays Alert icon with “1” in lower right corner

Technique Compensation (PerfecTemp) technology is not functioning or disabled

Open the temperature tab in Advanced settings to configure PerfecTemp*.

Braun displays Alert icon with “U” in lower right corner

Unadjusted Operating Mode is enabled Open the temperature tab in Advanced settings to configure Unadjusted

Operating Mode*.

C/F button is not functional

Pulse timer button is not functional

Celsius only enabled

Pulse timer disabled

Open the temperature tab in Advanced settings to disable Celsius only selection*.

Open the temperature tab in Advanced settings to enable pulse timer*.

Braun displays lock icon and is unresponsive

Security mode enabled and anti-theft timer has expired

Return Braun thermometer to dock to unlock. Security mode is set on temperature tab in Advanced settings.

Braun display is blank after performing upgrade

Software upgrade was interrupted Remove and replace the battery while holding the C/F button or return to the dock while holding the C/F button.

Retry upgrade.

*Host device Braun 6000 settings override configuration settings from Welch Allyn Service Tool.

Note

For additional troubleshooting tips for the thermometer, see the manufacturer’s product documentation.

Service manual Troubleshooting 43

Manual parameters

Symptom Possible cause Suggested action

The manual parameter frame does not appear on the Home tab

No manual parameters are selected in Advanced settings

In Advanced settings, touch the

Parameters

tab, then select the desired manual parameters.

Note

You can select only four manual parameters.

BMI is not displayed The BMI parameter is not selected

Height or weight was changed

Weight scale not connected

Select the BMI parameter in the advanced settings.

Adjusting the height or weight clears BMI.

BMI is available only from a weight scale with height.

Barcode reader

Symptom Possible cause Suggested action

The barcode reader powers on but does not transfer data

No license is installed Purchase a license and install the license using the service tool.

The barcode reader is not programmed to use USB

Com Port Emulation mode

Refer to the manufacturer's documentation to program the barcode reader to USB

COM Port Emulation mode.

The barcode reader is not supported For Honeywell model 4600g barcode readers, verify that the PID is set to 020A.

The barcode scanner did not enumerate properly Power cycle the Connex device.

The patient ID or clinician ID do not match

The barcode scanner is not programmed to properly interpret the barcode

Program the barcode scanner to turn on required symbology and to also add or delete characters to form correct ID.

Handles

Symptom

The lamp does not illuminate

Possible cause Suggested action

There is no lamp in the handle head Install a lamp in the handle head.

The lamp is burned out Install a new lamp.

The other handle is off the cradle Place the other handle in the cradle.

44 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Symptom Possible cause Suggested action

The lamp is too dim

The lamp is too bright

The system is not powered up

The PCBA is defective

The handle assembly is defective

The rheostat setting is too low

The PCBA is defective

The handle assembly is defective

The rheostat setting is too high

The PCBA is defective

Power up the system.

Replace the PCBA.

Replace the handle assembly.

Increase the rheostat setting.

Replace the PCBA.

Replace the handle assembly.

Decrease the rheostat setting.

Replace the PCBA.

The handle assembly is defective

The lamp brightness does not adjust The PCBA is defective

The handle becomes very hot to the touch

Replace the handle assembly.

Replace the PCBA.

The handle assembly is defective Replace the handle assembly.

The lamp has been on for an extended period of time

Return the handle to the cradle.

Note

The GS 777 Wall Transformer will accommodate instrument heads of the Welch Allyn approved

Halogen and LED type bulbs without any manual adjustment. For information about instrument heads, follow the instructions provided in their directions for use.

Errors

Symptom

#000000001

#000000002

#000000003

#000000004

#000000005

#000000006

#000000007

#000000008

#000000009

Possible cause

An internal software error

An unclassified hardware error

Graphics RAM POST

System RAM POST

Watchdog POST

FLASH initiation failed

A display system error

A real-time clock error

An audio system error

Suggested action

Power down and restart. If the error persists, call Welch Allyn

Technical Support for service.

Service manual Troubleshooting 45

Symptom

#000000010

#000000011

#000000012

Possible cause

An Ethernet system error

The touchscreen controller failed

Five or more SMBUS errors over a 1-minute period occurred

The communications module or main board failed

Suggested action

#000000013

#000000014 Main board USB hub failure

#000000015 Software watchdog timer reset

Technical alarm messages

This section presents tables of technical alarm and information messages to help you troubleshoot issues on the device. For information about physiological, dialog, or informational messages, see the device’s directions for use.

When the device detects certain events, a message appears in the Device Status area at the top of the screen. Message types include the following:

Information messages

appear on a blue background.

Very low-priority alarms

appear on a cyan background.

Low- or medium-priority alarms

appear on an amber background.

High-priority alarms

appear on a red background.

Technical alarm messages are low priority or very low priority unless noted in the

Message column.

You can dismiss a message by touching the message on the screen, or, for some messages, you can wait for the message to time out.

To use these tables, locate the message that appears on the device in the left column of the table. The remainder of the row explains possible causes and suggests actions that can resolve the issue.

If you cannot resolve the issue, use the service tool to read the error log files or use the service tool to perform a functional test 1 on the module reporting the message.

NIBP messages

Message Possible cause

Alarm

NIBP air leak; check cuff and tubing connections.

The NIBP module has an air leak

Suggested action

Check the cuff, tubing, and connections for leaks. If no leaks are found, retake the measurement. If the message reappears, replace the NIBP module.

1

Requires the service tool, Gold licensed edition.

46 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Message

NIBP not functional. Call for service.

Possible cause

Internal errors or messaging errors occurred

The ambient temperature is out of range

Unable to determine NIBP; check connections; limit patient movement.

Pressure exceeded the maximum limit for this patient mode

Suggested action

Check the error logs for NIBP errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

Use the monitor in the specified temperature range.

Check connections; limit patient movement.

Clear the alarm and retry NIBP.

Unable to determine NIBP; check connections and tubing for kinks.

NIBP tubing on the outside of the device is kinked Check the connections and tubing for kinks.

Clear the alarm and retry NIBP.

Incorrect NIBP cuff size; check patient type.

The NIBP module needs to be calibrated Perform NIBP calibration.

Tubing inside the NIBP module is kinked Replace the NIBP module.

A neonate cuff is in use with the monitor in adult or pediatric mode

Check the patient type and cuff size.

Clear the alarm and retry NIBP.

Inflation too quick; check NIBP cuff and tubing connections.

NIBP inflation was too quick

Unable to determine NIBP; check inflation settings.

Target pressure was too low

Too many attempts

Check the connections and tubing for kinks.

Clear the alarm and retry NIBP.

Check inflation settings and change as necessary.

Clear the alarm and retry NIBP.

Change the inflation setting.

Change the inflation setting.

Information

User cancelled NIBP reading.

Blood pressure reading cancelled by user

Touch

OK

to dismiss.

Touch NIBP Start button to dismiss and restart the NIBP reading.

Tube type does not match device configuration.

(NIBP measurement is available)

The tube type connected to the monitor does not match the NIBP configuration.

Touch

OK

to dismiss.

Configure the NIBP advanced settings to match the tube type, patient type, and algorithm.

The single lumen switch on the NIBP connection is stuck

Use a small screw driver to press the switch in and release until the spring returns the switch to the dual-lumen position.

Service manual Troubleshooting 47

Message

Excessive patient movement.

Possible cause

The NIBP reading was deemed not precise

Suggested action

Touch

OK

to dismiss.

Limit patient movement and restart the NIBP measurement.

SpO2 and SpHb messages

Message Possible cause Suggested action

Alarm

SpO2 not functional. Call for service.

Attach SpO2 sensor to monitor.

Replace the SpO2 sensor.

The sensor is defective

An internal error occurred

The sensor was not detected

Replace the SpO2 sensor with a known good sensor.

Update the host software to the current version.

Check the error logs for SpO2 errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

Check the sensor connection.

Replace the sensor.

The sensor is faulty Replace the sensor.

The sensor expired (applies only to SpO2 / SpHb sensors)

Replace the sensor.

No sensor is connected

The patient cable is faulty

Connect the sensor.

Replace the cable.

The SpO2 module is faulty Verify module functionality by replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

Searching for SpO2. (High-priority alarm)

The SpO2 sensor is not attached to the patient’s finger

Touch the alarm icon or the SpO2 frame to dismiss the alarm.

Low SpO2 signal quality. Check sensor.

Poor sensor placement on the patient.

Set the SpO2 Alarm limits to

Off

.

Reattach the SpO2 sensor to the patient's finger.

Remove the sensor from the patient and reapply.

48 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Message

Low SpHb signal quality. Check sensor.

Low perfusion. Check sensor.

Possible cause

The patient cable or sensor is defective

The SpO2 module is faulty

Suggested action

Replace the patient cable or sensor.

Verify module functionality by replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

SpO2 mode only. Check sensor or cable.

The sensor is operating as an SpO2-only sensor because it failed to calibrate properly

Reattach the cable to the monitor.

Remove the sensor from the patient and reapply.

SpO2 sensor expires in...

Note

This message appears only on devices configured with SpHb.

The sensor will expire soon Replace the sensor.

Replace the SpO2 cable.

The cable is not functioning properly

The SpO2 module is faulty

Replace the cable.

Verify module functionality by replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

Temperature messages (SureTemp)

Possible cause Message

Alarm

Connect temperature probe.

No probe is connected

Suggested action

Insert correct color-coded probe well.

The probe is faulty

The temperature module returned a connect probe message

The SureTemp temperature module is faulty

The probe well is missing

The SureTemp temperature module is faulty

Connect a temperature probe and retry.

Replace the temperature probe.

Connect a temperature probe and try again. If a probe is already connected, replace the probe.

Verify module functionality by replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

Insert a temperature probe well.

Verify that the lever arm on the back of the probe well housing is

Service manual Troubleshooting 49

Message

Replace temperature probe.

Possible cause

The probe is faulty

The SureTemp temperature module is faulty

Retry temperature measurement.

Note

This message often accompanies other temperature messages.

A probe heater or data error occurred

User settings require adjustment

The ambient temperature is out of range

The SureTemp temperature module is faulty

Temperature time limit exceeded.

Retry temperature measurement.

The direct mode timed out

Suggested action

engaging switch SW1 on the temperature PCBA. If the problem persists, replace the module.

Replace the temperature probe.

Verify module functionality by replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

Retry the temperature measurement. If the problem persists, replace the probe.

Adjust the user settings and retry.

Operate the monitor within the specified temperature range.

Retry patient temperature measurement.

Verify module functionality by replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

Return the temperature probe to the probe well and retry measurement.

Information

Tissue contact lost.

Lost tissue contact while attempting to acquire temperature reading or acquired reading was performed with limited tissue contact

Touch

OK

to dismiss the message. Start a new temperature reading.

Temperature messages (Braun ThermoScan PRO)

Possible cause Message

Alarm

Unable to detect temperature.

Retry measurement.

Measurement was not taken

Measurement recalled from memory

Loose or broken USB cable

Suggested action

Retry measurement.

Check USB connection and cable.

Replace as necessary.

50 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Message Possible cause Suggested action

Dead battery

Braun display is blank or battery icon shows one bar

Recharge or replace battery.

Braun displays “POS” error

Change the probe cover to reset.

Restrict patient movement and ensure that the positioning of the probe is correct and remains stable while taking new temperature.

Thermometer might be docked improperly.

Braun displays “Err” error

Ambient temperature is outside the allowed operating range (50–104°F or 10–40°C) or changes too rapidly

Thermometer is not properly docked

Thermometer has dirty contacts

Braun temperature not functional.

Call for service.

Communication timeout

BDD transfer took longer than expected

POST did not complete or failed within the expected time period

POST failure

Braun display is all icons or blank

Unsupported parameter

Sensor data definition error (occurs when the proxy is unable to set parameters to the sensor using local DDS)

WACP serialization failure

Braun maximum battery voltage exceeded

Battery voltage is too high

Braun BDD compatibility

Braun BDD unexpected compatibility

Braun send message failure

Wait 20 seconds until thermometer turns off automatically, then turn on again.

Ensure thermometer and patient are in an environment for 30 minutes where the temperature is between 50ºF and 104ºF or

10ºC and 40ºC.

Re-dock thermometer.

Clean dock and thermometer contacts with 70 percent isopropyl alcohol. See Cleaning

Instructions for Braun

ThermoScan PRO 6000.

Remove and replace battery to reset, then return thermometer to dock. If error persists, return for service.

Service manual

Message Possible cause

Braun bridge failure

Temperature is not functional. Call for service.

An internal error occurred

Troubleshooting 51

Suggested action

Check the error logs for temperature errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

Check the USB cable.

Replace the batteries.

ECG messages

Message

Alarm

Electrodes off:

IEC electrodes (N, F, R, L, C)

AHA electrodes (RA, LA, LL, V)

Electrode x off.

ECG not functional.

The USB cable is disconnected

The battery is depleted or missing

Possible cause Suggested action

Device is configured for 5 leads, but you are using 3 leads

(N, F, R, L, C) disconnected

(RA, LA, LL, V) disconnected

Ensure that the device is configured for the appropriate number of leads in Advanced settings.

Connect (N, F, R, L, C) lead.

Connect (RA, LA, LL, V) lead.

One lead is disconnected

ECG module error, WACP error, Data failure

ECG module has not transmitted ECG data for the past 30 seconds

Check the connections of all leads.

Check the USB cable and connections.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

Check the USB cable and connections.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

52 Troubleshooting

Message

Cannot analyze ECG.

Cannot measure ECG.

Searching for respiration.

Welch Allyn Connex

®

Integrated Wall System

Possible cause Suggested action

ECG module disconnected

Unexpected alarm compatibility bits

Check the ECG module connection to Connex device.

Restart the Connex device and the ECG module; if the error persists, contact

Customer Care.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

Module unable to analyze the ECG signal for V-Tach, V-Fib, and/or asystole

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

ECG module has been unable to detect and ECG waveform for the past 30 seconds

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

ECG unable to measure patient respirations

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

Service manual Troubleshooting 53

Message

Respiration alarm limits changed.

Possible cause Suggested action

You are not using Lead II to view respiration

Ensure that you are viewing Lead II for respiration.

Attempting to acquire ECG/Impedance respiration

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact

Customer Care and replace the ECG module if necessary.

Respiration physiological alarm limits were modified because the respiration source changed

Reset alarm limits.

Weight scale messages

Message Possible cause

Weight scale not functional. Call for service.

The weight scale is not operating properly

Suggested action

Check the scale.

Use the service tool to check connectivity with adapter.

Replace cables.

Replace adapter.

Communications module messages

Message

Communications module did not power on properly. Power down the device. (High-priority alarm)

Possible cause

The communications board is not connected properly to the main board

The communications board malfunctioned

Suggested action

Check the USB connection at J4.

Check the Power connection at

J50. Check the voltage from J49 on the main board for +5.0V

±0.5V DC. Replace the main board if necessary.

Replace the communications board.

54 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Radio messages

Message

Alarm

Radio not functional. Call for service.

Possible cause Suggested action

Radio error. Power down and restart.

A hardware failure occurred

The radio has the wrong software

The monitor and the radio failed to establish communication with each other

Replace the radio.

Update the radio software.

Power down and restart the monitor.

If the problem persists, check the following:

• The USB and power connections from the main board to the communications board.

• The connection from the radio board to the communications board.

• Monitor and radio software compatibility.

Replace the radio if necessary.

Unable to establish network communications. Radio out of network range.

The radio is no longer communicating with the access point

Verify that the monitor is within the radio coverage area. Verify that the radio is correctly configured to the network. If this message appears intermittently, check the RSSI value.

Unable to establish network communications. Call for service.

Unable to get an IP address from the DHCP server Verify that a DHCP sever is available on the network. The monitor requires an IP address from a DHCP server.

Radio Software upgrade failed.

The connection with the host was broken

The radio was not provisioned correctly

Re-establish the connection and try again.

Reset radio to factory defaults and try again.

Replace the radio.

Hardware error

Information

Radio software upgrade in progress. Do not shut down.

Radio software is being written to the radio

Radio card rebooting; please wait. The radio is restarting as part of the software upgrade

Do not interrupt the upgrade until complete.

Do not interrupt the upgrade until complete.

Service manual Troubleshooting 55

Ethernet messages

Message Possible cause

Alarm

Network not found; check network cable connection.

A network cable is unplugged

A network connection is broken elsewhere

Suggested action

Check the network cable connection.

Check network wiring.

USB messages

Message Possible cause Suggested action

Alarm

External device not recognized.

An unrecognized external device is connected Reconfigure the external device.

Replace the external device.

Disconnect the unsupported device.

USB Communication failure. Call for service

An internal or external device is connected but failed enumeration

Power down and restart.

Check the external device.

Check external and internal USB connections.

Information

External device not licensed for use.

Unable to save configuration to

USB.

A device requiring a license has been connected to the USB connection

Obtain an authorization code from Welch Allyn to activate the license.

There was a problem writing the configuration file to the USB flash drive

Use a Welch Allyn approved flash drive.

Verify that the flash drive is not locked.

Verify that there is space available on the flash drive.

Unable to read configuration from

USB.

There was a problem reading the configuration file to the USB flash drive

USB accessory disconnected.

The USB cable between an external device and the monitor is disconnected

Restart and try again.

Confirm that the USB cable is connected to the device and the monitor.

56 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

System messages

Message

Alarm

Set date and time.

Possible cause

The date or time is not set

The date or time is not set properly

Incompatible Welch Allyn device. A known USB device enumerates, but fails

Unexpected restart occurred. Call for service.

A system error caused the monitor to restart

Information

Device shutdown is not available at this time.

The device cannot perform an immediate shutdown

Suggested action

Set the date and time.

Reset the date or time.

The device may be faulty. Test a known good device.

Check Event and Error logs. Run the service tool verification test.

Touch

OK

to dismiss message.

If any process is active, wait for it to complete before attempting shutdown.

If the device is unresponsive, hold down the power button until device shuts down.

Note

Any configuration changes not saved as default are lost.

Battery power manager messages

Possible cause Message

Alarm

Low battery 5 minutes or less remaining. (High-priority alarm)

Battery power is extremely low

Battery is absent or faulty.

There is no battery in the monitor

Battery is absent or faulty. Call for service.

The battery is faulty

The battery power is low Low battery 30 minutes or less remaining.

Information

Device is operating in battery mode.

The AC power cord has been disconnected

Suggested action

Plug the monitor into AC power.

If not plugged in, the monitor automatically powers off.

Insert a battery.

Replace the battery.

Touch the alarm icon to dismiss or plug the monitor to AC power.

Touch the alarm icon to dismiss or plug the monitor to AC power.

Service manual Troubleshooting 57

Configuration Manager messages

Message Possible cause

Alarm

Unable to load configuration; using factory defaults.

A configuration load error occurred

Suggested action

Functional error. Call for service.

A critical configuration load error occurred

Information

No connection for send.

The monitor is not configured to the network

Restore factory defaults. If the error persists, replace the main board.

Replace the main board.

In Advanced settings, touch the

Data Management > Clinical

Data

tabs, then disable

Automatically send on manual save

if you only want to store readings on the device.

If your want to send readings, then configure the device to the network.

Patient data management messages

Message Possible cause Suggested action

Alarm

Maximum number of patient records saved. Oldest record overwritten.

The maximum number of patient records has been saved on the device

Go to the Review tab and delete old records to prevent the alarm from appearing when new records are saved.

Information

No data saved.

Patient ID required to save data.

No patient data is available

The configuration requires a patient ID to save data

Take or enter vital signs before saving.

In Advanced settings, touch the

Data management > Patient

tabs, then disable

Require patient ID to save readings

.

Clinician ID required to save data. The configuration requires a clinician ID to save data

In Advanced settings, touch the

Data management > Clinician

tabs, then disable

Require clinician ID to save readings

.

Patient ID required to send data.

The configuration requires a patient ID to send data

Add a patient ID.

Patient list is full. Delete some patients to add more.

The maximum number of patients was exceeded Delete a patient from the list to add a new patient.

58 Troubleshooting Welch Allyn Connex

®

Integrated Wall System

Message

Stop intervals to select new patient.

No connection for send.

Unable to identify clinician.

Unable to retrieve list.

Possible cause Suggested action

The device is set to take interval readings

No connectivity is available to support sending data manually or automatically sending data on manual save

Check the network connection.

Check the Radio Configuration settings.

The clinician ID or password is incorrect

Stop intervals before changing the patient.

Confirm the clinician ID and password (if applicable), and retry.

The device is unable to retrieve a patient list from the network

Check the network connection.

Check the Radio Configuration settings.

Verify that the server is available.

Network messages

Message

Lost connectivity with host.

Possible cause Suggested action

The central station or other host application has stopped running or is not operating properly

Confirm that the host application is running properly.

Disassembly and repair

This chapter is divided into two major subsections, defined in the table below.

Section A Section B

(IEC 60601 3rd-edition compliant)

Devices meeting these criteria:

• Manufactured before 12/2017*

• MCE hardware version P3 or earlier

(see the right pane on the Settings tab)

• Built before serial number* 100023374817

Devices meeting these criteria:

• Manufactured after 12/2017*

• MCE hardware version P5 or later

(see the right pane on the Settings tab)

• Built after serial number* 100023374817

* See "Device serial number and model label" in the Appendix for serial number format and meaning.

Examine your device to determine which subsection you should follow to complete disassembly and repair procedures.

This overview includes exploded views of the front externior and rear interior that include callouts referencing the parts. These exploded views apply to both Section A and Section

B, though certain parts are labeled as specific to one section or set of devices and not the other. In the instructions, numbers in parentheses refer to callouts in the exploded drawings. Except where otherwise noted, the reassembly procedure is the reverse of the disassembly procedure.

Each part’s disassembly instructions may include one or both of the following subsections:

Reassembly notes

: This contains information specific to reassembly not addressed in the disassembly instructions, especially when reassembly is not a simple reverse of disassembly.

When replacing the component

: This contains information specific to installing a new option or replacement part.

WARNING

Electrical shock hazard. Disconnect AC power before opening the device. Disconnect and remove the battery before opening the main chassis. Failure to do this can cause serious personal injury and damage to the device.

WARNING

Risk of fire, explosion and burns. Do not short-circuit, crush, incinerate, or disassemble the battery pack.

59

60 Disassembly and repair Welch Allyn Connex

®

Integrated Wall System

WARNING

Safety risk. Do not attempt to service the device when the device is connected to a patient.

CAUTION

Before disassembling the device or installing options, disconnect the patient from the monitor, power down the device, disconnect the AC power cord and any attached accessories (SpO2 sensors, blood pressure hoses and cuffs, temperature probes, ECG modules, Braun docks, and barcode scanners) from the device.

CAUTION

Remove the probe well in the temperature module prior to disassembly.

CAUTION

Perform all repair procedures at a static-protected station.

CAUTION

When the device case is opened, regard all parts as extremely fragile. Execute all procedure steps with care and precision.

CAUTION

Observe screw torque specifications, especially with screws that secure directly into plastic standoffs.

CAUTION

To avoid mismatching screws and holes, keep the screws for each piece with that piece as you remove modules and circuit assemblies.

It is possible to mistakenly install machine screws in locations intended for plastite screws. Plastite screws in this device have a Torx-pan head.

CAUTION

After performing any of these procedures and prior to returning the device to service, you must use the service tool, Gold licensed edition, to complete the full suite of functional tests to ensure that all systems are operating within the design specifications. For more information about these tests and the service tool, see “Functional verification and calibration.”

If you do not have the service tool, contact Welch Allyn Technical Support.

For information about screws or connectors used in the device, see the Appendix.

Service manual Disassembly and repair 61

Required tools and equipment

• #1 Phillips bit

• #2 Phillips bit

• #10 Torx bit

• Torque driver calibrated for 6.0 in-lb ±1.0 in-lb

• Torque driver calibrated for 7.5 in-lb ±0.5 in-lb

• Slotted screwdriver

• Tweezers

• Needle-nose pliers

• Spudger

• Tie-wrap tool calibrated for torque specification 5 INT

• Tie-wrap cutter

• Soft lens wipes

• Scissors or other cutting device

• Canned air

• Adhesive tape

• Pro Gaff tape

For information about screws and connectors used in the device, see the Appendix.

62 Disassembly and repair Welch Allyn Connex

®

Integrated Wall System

Disassembly overview

The following chart provides an overview of the complete disassembly of the device.

Most disassembly activities require that you complete a subset of the steps detailed here. The flow chart indicates the steps that must be completed in sequence to remove a particular component. Because a different sequence of preliminary steps might be required to remove certain components, you should use this flow chart as a reference at the start of every disassembly and component replacement procedure. A list of preliminary steps presented at the start of each disassembly topic provides the prerequisites for that disassembly task. (Some tasks in the flowchart are optional, depending on the scope of disassembly.)

Section A

This section applies to devices manufactured before 12/2017, serial numbers before

100023374817, and MCE hardware version P3 or earlier.

Note

If your device does not meet these criteria, see Section B for the correct disassembly and repair instructions.

If the MCE hardware version is P2 or P3, DO NOT replace any components with service kits with the "3rd Ed" suffix. IEC 3rd Edition service kits are not compatible with hardware versions P2 and P3.

Power down the device

You can power down the device as follows: 1) on devices with 2.X software, briefly press the power button on the housing and then following the onscreen prompts, or 2) on all devices, use onscreen controls alone.

Option 1.

After the device is powered up, briefly press of the power button to open an onscreen dialog with the following options:

Power down

. Device behavior varies based on the active profile, whether or not patient trend data is stored, and whether or not patient context is established. While servicing the device, you need not be concerned about these details. They only matter to clinicians who are monitoring patients and storing patient data.

Sleep

. The Sleep button clears the display and puts the device into Display powersaving mode.

Cancel

. The Cancel button dismisses the dialog.

Touch

Power down

and complete the power-down procedure.

Option 2.

To use onscreen controls alone to power down the device, follow these steps:

1. Touch the

Settings

tab.

2. Touch the

Device

tab.

3. Touch

Power down

.

Note

The next three sections address disassembly and repair steps you can complete without removing the device from the wall or removing the battery. All steps presented after “Remove the system from the wall and remove the battery” require powering down as well as removing the device from the wall and removing the battery.

63

64 Section A

Exploded view, front exterior

Welch Allyn Connex

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Integrated Wall System

No.

Item

16

17

9

10

18

20

4

5

8

Side housing

SureTemp module

CIWS handle module assembly

Braun housing

Platform module, blank

Module cover

Communications cover housing

Cubby door

Side mounting bracket/Module retaining plate

No.

Item

44

45

42

43

50

23

30

41

Power button

Blue insert

NIBP module

SpO2 module

Braun dock

Strain relief, comms, PW

Ear speculum dispenser, small

Screw, M3 x 0.5, Pan Phillips

Replace modules in the bottom housing

1. Power down the system and disconnect the AC power cord.

2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

Service manual Section A 65

4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Note

The modules fit tightly in the housing but can become loose over time. Support the modules to prevent them from falling out as you remove the module cover.

5. Remove the module you want to replace.

Slide the module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cable from the rear of the module.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the left.

• The NIBP module must always be in the front-most slot.

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Integrated Wall System

Replace modules in the main housing

Note

Check how the end cap or Braun thermometer housing are attached to the device. If bushings with captive screws attach the end cap or Braun thermometer housing to the side of the main housing as shown in step 1, proceed with the instructions as presented. If you don't see bushings with captive screws on the end cap or the Braun thermometer housing, then these parts are attached to the back of the chassis, not the right side. To remove these parts and access any front-facing modules, first remove the device from the wall. (See "Remove the system from the wall and remove the battery.")

1. Power down the system and disconnect the AC power cord.

2. Loosen the two captive #2 Phillips screws that hold the end cap or the Braun thermometer housing in place.

3. Remove the end cap or thermometer housing by sliding the piece away from the wall and then to the right.

4. Disconnect the USB cable from the Braun dock, which you can access from the rear of the Braun housing.

5. Locate and remove the module retaining plate by removing the four #2 Phillips screws.

Service manual Section A 67

6. If SureTemp is installed, remove the module and the probe cover storage together, sliding them out the open end, and disconnect the USB cable.

7. Slide any blank face plates or modules to be removed toward the open end.

Note

When removing any connected modules, disconnect the

USB cables before you remove the module.

Note

If you are replacing a Braun 4000 thermometer with a Braun

6000 thermometer, you must also replace the dock.

Remove the Braun dock from the housing

1. Hold the Braun housing with your right hand and the dock with your left hand as shown. With your right-hand fingers inside the housing, gently press the housing toward you and away from the dock. At the same time, gently push the dock away from you until the dock unsnaps from the housing.

2. When the dock is completely loose, remove it from the housing.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the bottom.

• The temperature module must always take up the last two spots closest to the end.

• The blank cover's beveled edge must be on the right when facing the device for proper alignment.

68 Section A Welch Allyn Connex

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Integrated Wall System

• When replacing the Braun dock, insert the bottom of the dock into the housing, align the molded ridges in the top of the dock with the slots in the top of the housing, and snap the dock into the housing.

Remove the system from the wall and remove the battery

1. Power down the system and disconnect the AC power cord.

2. Disconnect any detachable sensors and cables:

• Blood pressure cuffs and hoses

• Temperature probes and cables

• Braun thermometer

• SpO2 sensors and cables

• 3.5V instrument heads

3. Remove any items in the storage area and any other loose items before attempting to remove the system from the wall.

4. Close the storage area door and seal it with a piece of adhesive tape to prevent the door from opening.

5. Remove the speculum holder by lifting it up and away from the handle housing.

6. Remove the AC power cord.

7. Remove the communications connection cover.

Loosen the two captive screws, using a #2 Phillips screwdriver, until the cover is free from the housing.

Service manual Section A 69

8. Remove the wall anchor screws using a #2 Phillips screwdriver.

9. Hold the bottom and top of the system and push it up to remove the system from the wall mounting bracket.

10. Place the wall system on a table or flat work surface so that the back of the wall system faces up. Ensure that the display is protected from pressure or getting scratched.

11. Locate the battery, indicated by

12. Remove the battery.

Remove the light-bar board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Remove the two torx screws from the light-bar cover.

2. Remove the light bar and cover.

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Integrated Wall System

3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. Remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

Service manual

Exploded view, rear interior

Section A 71

No.

Item

11

12

6

7

1a

2a

3

15

19

13

14

LCD with touchscreen

Main board

Main housing

Platform fan assembly

Platform speaker assembly

Module well assembly

Light bar

Power panel

Battery housing

Module track

Light-bar cover

21 Light-bar board

No.

Item

36

37

34

35

31

32

33

40

50

38

39

51

LCD bezel

LCD frame

Chassis

Cable, USB client

Handle assembly

PCBA: Platform 767 controller, pattern E

Handle, cradle, and opticals assembly, cool blue

Housing, front handle

Housing, rear handle

IR connector and wire assembly

Screw, M4 x 10, Pan head with nyloc (Large

Phillips screw)

Screw, M3 x 0.5, Pan Phillips (Small Phillips screw)

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Integrated Wall System

No.

Item

22

23

30

Battery connector

Power button and flex cable

Blue insert

No.

Item

52

53

Screw, Plastite #4-20 x .500 Pan head (Torx screw)

CCH44-S10 P-clamp, 0.437

Remove the handle module assembly

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Cut and remove the cable tie that holds the USB ferrite in place.

2. Disconnect the USB cable.

3. Remove the ferrite from the USB cable by pulling apart the two clips and lifting up.

4. Remove the four large Phillips screws while supporting the end of the handle module assembly.

5. Lift the handle module assembly up and away from the main assembly while guiding the USB cable through the slotted opening.

Service manual Section A 73

Remove the handles

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

1. Remove the six large Phillips screws on the back of the assembly, then lift and remove the rear handle housing.

2. Disconnect the handle connector wires from the 767 Controller PCBA.

3. Lift and remove the handle cables from the front handle housing.

Reassembly note

When reconnecting the handle connection wires to the handle PCBA, the connecting wires must be facing up and away from the PCBA.

Remove the 767 controller PCBA

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

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Integrated Wall System

• Remove the handle module assembly.

• Remove the handles.

1. Disconnect the two IR wire connectors from the handle PCBA.

2. Remove the three Torx screws.

3. Lift and remove the PCBA.

Reassembly note

When reconnecting the IR wire connectors to the handle PCBA, the connecting wires must be facing down and toward the cradle assemblies.

Remove the handle cradle and optical assemblies

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Remove the handles.

• Remove the 767 Controller PCBA.

1. On the rear of the assembly, disconnect both IR wires from the optical sensors.

2. Push in the snap tabs and remove the cradle assembly by pushing outward.

Service manual Section A 75

Reassembly notes

• For ease of assembly, connect the IR wire assemblies to the optical sensors before attaching the handle cradle to the handle assembly housing.

• Attach the connector with the black and white wires to the optical detector

(indicated by the letter "B" molded into the cradle plastic). Attach the connector with the red and white wires to the optical emitter. The wires should face inward once the handle cradle is assembled.

• Snap the handle cradle assembly into the front housing. Make sure that the cradle assembly tab and the beveled edge are at the top of the housing.

Open the chassis

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• If the Braun option is accessible from the side, remove it as described in "Replace modules from the main housing."

1. Complete one of the two substeps below based on your system details.

76 Section A Welch Allyn Connex

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Integrated Wall System

For systems built before July 15, 2011 with the Braun thermometer option or end cap mounted to the rear chassis:

a. Remove the 6 screws as shown.

b. Disconnect the USB cable from the rear of the Braun housing.

c. Remove the two large Phillips screws that hold the end cap or the thermometer housing in place, and remove the end cap or thermometer housing.

For systems built after July 15, 2011 with the Braun thermometer option or end cap mounted to the side mounting bracket:

a. Remove the Braun module if present as described in "Remove modules from the main housing." b. Remove the 8 screws as shown.

2. Remove the two Torx screws securing the client USB connector to the housing, and then disconnect and remove the cable.

CAUTION

Multiple wire connections are still connected between the front housing and the chassis. These must be disconnected before it is safe to completely separate the two pieces.

3. Carefully lift the top of the chassis away from the front housing while leaving slack in all cable connections.

From the communications board, disconnect the following in the order presented:

Service manual

Number Item

1

2

3

4

Small 4-pin connector

Mini USB cable

USB cable

Ethernet cable

4. Disconnect the power supply cable from the power supply.

5. Separate the chassis from the front housing.

Section A 77

78 Section A

Exploded view, chassis

Welch Allyn Connex

®

Integrated Wall System

No.

Item No.

Item

33

51

Chassis 56

Screw, M3 x 0.5, Pan Phillips (Small Phillips screw) 57

52 Screw, Plastite #4-20 x .500 Pan head (Torx screw) 58

54a Power supply, 60W 59

55 Communications board

Radio board

Antenna board

Ground lug

IEC connector

Remove the power supply

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the green ground cable and the AC power harness from the power supply.

Service manual Section A 79

2. Remove the four torx screws.

3. Remove the power supply.

Reassembly note

When reinstalling the power supply, orient the board so that the end of the board with the AC-to-power-supply (J1) connection is closest to the IEC connector.

Remove the ground lug, AC power harness assembly, and IEC connector

Note

Do not disconnect the AC power harness from the IEC connector unless you are replacing it. Once your disconnect the AC power harness, you cannot reuse it.

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the AC power harness and ground from the power supply.

2. To remove the ground lug:

80 Section A Welch Allyn Connex

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Integrated Wall System a. Remove the 10mm hex nut and slide out the star lock washer and the ground wire (power supply) ring terminal.

b. Remove the next 10 mm hex nut and slide out the star lock washer, the ground wire (mains) ring terminal, and the flat washer.

c. Remove the bare ground lug by pulling it out from the outside of the chassis.

3. To remove the IEC connector: a. Disconnect the three power wires: blue neutral (N), green ground (G), and brown line (L).

Note

You must now replace the AC power harness. It cannot be reused.

b. Push in on the three plastic release tabs to release the IEC connector.

Remove the communications board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the mini-USB connection on the outside of the chassis.

Service manual

2. Turn over the chassis to access the communications board.

3. Remove the four Torx screws.

Section A 81

4. Lift the communications board from the chassis.

5. For systems with the radio option, remove the tape securing the antenna cable, and rotate the communications board counter-clockwise to clear the chassis. Make sure not to pull on the antenna cable. Turn the board over and place it inside the chassis.

6. If replacing the communications board, remove the radio board as described in

"Remove the radio board and antenna."

Remove the radio board and antenna

Note

Do not remove the radio antenna from the chassis unless you are replacing the radio and antenna or the chassis.

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the ground lug, AC power harness, and IEC connector.

• Remove the communications board.

1. Remove the radio board: a. Turn the communications board over to access the radio board, taking care to avoid straining the antenna cable.

b. Remove the four small Phillips (machine) screws securing the radio board to the communications board.

82 Section A Welch Allyn Connex

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Integrated Wall System c. Hold the communications board with one hand while grasping the radio board at the opposite end from the antenna connection and pull the radio board away from the communications board.

2. Remove the antenna and antenna cable.

a. Remove the Pro Gaff tape securing the antenna cable to the housing.

b. Carefully disconnect the antenna cable by lifting up on the wire neck just before the connection point.

c. Use a soft tool such as a spudger to separate the adhesive from the inside of the chassis of the antenna plate.

Reassembly notes

If the antenna is removed:

• Clean the chassis and mounting surface with 70 percent isopropyl alcohol.

• Peel the backing off the double-stick tape and affix it to the chassis antenna plate.

• Mount the antenna to the antenna plate. Make sure the PG terminal on the antenna board is facing outwards.

Antenna cable connection:

• Attach the antenna cable to terminal G on the radio board. Attach the other end of the cable to the antenna on terminal PG.

Service manual Section A 83

• Once the antenna, radio, and communications board are mounted and secure, secure the antenna cable to the housing with Pro Gaff tape.

Replace the chassis

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the communications board.

• For systems with the radio option, remove the radio board and antenna.

Remove the USB client cable from the outer side of the chassis by removing the two

Torx screws.

Disconnect or remove the light bar

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Remove the two Torx screws from the light-bar cover.

84 Section A Welch Allyn Connex

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Integrated Wall System

2. Remove the light bar and cover.

3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. If replacing the light-bar board, remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

Disconnect or remove the fan

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

Service manual

• Open the chassis.

1. Disconnect the power cable from the fan harness connector.

Section A 85

2. Press the flanges on the sides of the fan harness connector and separate the fan connector from the power panel.

3. If you are removing the fan, slide the fan up and remove.

Reassembly note

Install the fan with the label facing the power panel.

Disconnect or remove the power panel

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

86 Section A Welch Allyn Connex

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Integrated Wall System

• Remove the fan.

1. If you haven't done so already, disconnect the power cable from the fan harness connector.

2. Disconnect the two harness connectors from the battery board.

3. Disconnect the speaker connector wire.

4. Remove the two Torx screws that attach the power panel to the front housing and slide the power panel out of the housing.

Service manual Section A 87

5. Pull the module handle assembly USB cable through the access hole in the power panel.

Reassembly notes

• Pull the module handle assembly USB cable through the access hole in power panel before securing the power panel to the housing.

• When installing the power panel in the housing, do not obstruct the channel or allow the battery board or battery housing to push the LCD flex sideways.

• Reconnect the speaker, battery board, and fan harnesses.

Remove the speaker

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Carefully pry the speaker and adhesive away from the power panel.

2. Remove any remaining gasket material and clean the surface with 70 percent isopropyl alcohol.

3. Remove the paper on the speaker to expose the adhesive on the gasket.

4. Apply pressure to the outer radius of the speaker assembly to assure good adhesion with the power panel.

Replace the battery board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Remove the battery compartment from the power panel by pushing in on the four plastic tabs.

2. Remove the two Torx screws from the battery compartment and remove the battery board.

88 Section A Welch Allyn Connex

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Integrated Wall System

3. Secure the new battery board to the battery compartment with two Torx screws.

Disconnect or remove the power wire harness and main wire harness

Note

Note

If removing the main board or LCD, it is not necessary to cut wire ties attaching the harness to the housing unless you are replacing the harness or the housing.

When replacing the main harness, you must disconnect the light-bar board from the main harness.

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the USB connections from the main board in positions 1 through 8 and

10 and 11. Remove the USB cables from the cable separator to clear the work area.

2. Disconnect the connectors as follows:

• To disconnect the power harness, disconnect the connectors at J29 and J30.

• To disconnect the main harness, disconnect the connectors at J34, J12, J49,

J46, and J45.

Service manual Section A 89

3. If you are replacing the power harness, carefully cut the two wire ties and remove the harness.

4. If you are replacing the main harness, disconnect the main harness from the power panel, carefully cut the two wire ties, and remove the harness.

Reassembly notes

When replacing the harness standoff:

• Orient the harness standoff so that the main harness communications power, light bar, and fan wires run parallel to the top of the main board.

• Mount the harness standoff to the frame, aligning the edge of the standoff with the edge of the main board directly beneath the screw and securing the upper left-hand corner of the frame.

When replacing the main harness:

• Align the shrink-wrapped sections and their wire tie anchors with the light-bar wires on the left.

• Feed the light-bar wires through the rectangular opening in the bottom of the housing to the right of the module well.

• Attach the harness to the main housing using the wire tie anchors closest to the display or front of the housing.

When replacing the power harness:

90 Section A Welch Allyn Connex

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Integrated Wall System

• Align the shrink-wrapped sections with the wire tie anchors.

• Align the end with the wire tie closest to the end on the left to connext with the main board.

• Attach to the main housing using the wire tie anchors closes to the back of the housing.

• Route the connections from the main harness to the main board (communications power, light bar, fan)

over

the last USB cable,

under

the remaining USB cables, and

through

the harness standoff. Twist to lock the harness in the standoff.

Remove the main board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

1. Disconnect the following on the main board: a. The power button flex cable at J6.

b. The LCD harness at J19.

c. The LCD flex cable at J48.

2. Remove the Ethernet cable: a. Disconnect the Ethernet cable from the Ethernet cable connector at J11 on the main board.

b. Remove the screw that secures the Ethernet cable P-clamp to the main board.

c. Remove the Ethernet cable.

Service manual Section A 91

3. Remove the seven small Phillips screws that secure the main board to the LCD frame.

4. Remove the main board.

Reassembly notes

• Ensure that the LCD flex cable is not under the main board.

CAUTION

The solder joint of the LCD connector (J48) is fragile. When inserting or removing the flex cable, do not stress the solder joint.

• Route the Ethernet cable outside the PEM stud and not underneath the main board.

• Connect the Ethernet cable to the main board:

○ Verify whether your model contains PCBA 407574 revision B, C, or D. Revisions

B and C have no logo on the top surface of the Ethernet port. Revision D has a logo on the top surface of the Ethernet port. See the figure below.

○ For PCBA 407574 revisions B and C, confirm that the Ethernet cable has a shim on one connector. Insert the connector with the shim into the Ethernet port.

○ For PCBA 407574 revision D, you can use either an Ethernet cable with a shim or an Ethernet cable without a shim. Insert the connector into the Ethernet port.

92 Section A

Revisions B and C Revision D

Welch Allyn Connex

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Integrated Wall System

• When securing the main board, install the screw near J30

after

you install the

Ethernet cable.

• If the light bar is not installed, install the light-bar harness into the housing, positioning the ferrite bead near the main board.

When replacing the main board

• When ordering the replacement main board, order the standard license for the model being serviced. You will receive an authorization code to enter in the service tool to reactivate the licenses included with the original configuration.

• Before installing the main board, record the serial number of the main board.

• After reassembling the system, use the service tool to provision the system as follows:

○ Enter the device’s serial number. This can be found on the bottom of the device.

○ Enter the main board (host controller) serial number.

○ Select the Connex Integrated Wall System from the device model dropdown menu.

○ Restore any previously licensed features by entering the authorization code in the service tool. Use the authorization codes that accompanied the replacement board, along with any additional license authorization codes previously installed.

Record the device serial number on the license authorization code cards received with the replacement board and retain for future use. If the license is lost, you can reuse the authorization code on the same device.

○ Update the host controller software to the current version or version in use at your facility. If the required version of the host software is not available after connecting the device to the service tool, contact Welch Allyn Technical Support.

Remove the LCD

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

• Remove the main board.

Service manual Section A 93

Note

Do not remove the LCD harness from the frame unless you are replacing the harness or frame.

1. Remove the tape and disconnect the LCD harness from the LCD. For easier access to the connector, you can slide the ferrite bead closest to the connector up the harness.

2. Remove the four large Phillips (shoulder) screws that secure the LCD frame.

3. Remove the LCD frame.

Note

Be sure to support the LCD if you are removing it with the frame. The foam strips on the LCD might cause the LCD to stick to the frame.

4. Remove the LCD.

Reassembly notes

• Ensure that the LCD flex cable is not under the LCD frame.

CAUTION

The solder joint of the LCD connector (J48) is fragile. When inserting or removing the flex cable, do not stress the solder joint. Do not cause creases that may break the connections.

• Insert the display into the bezel in the front housing with the LCD flex cable on the lower right as shown. Verify that the LCD flex cable feeds through the bezel’s clearance feature. (The image on the left applies to older displays while the one on the right applies to newer displays.)

1st generation displays 2nd generation displays

• Place the LCD frame over the LCD. Verify that the LCD frame does not cover the

LCD flex cable.

94 Section A Welch Allyn Connex

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Integrated Wall System

• Center the LCD and bezel in the main housing's molded channel with the bottom near the screw bosses.

• Replace the Pro Gaff tape in the frame opening under the display harness as shown.

• After connecting the display harness to the LCD, secure the harness to the LCD frame with Pro Gaff tape as shown.

When replacing the LCD frame

• Install a 3-inch strip of Pro Gaff tape over the top part of the LCD harness cutout to protect the LCD harness from abrasion.

• Install the LCD harness. Use isopropyl alcohol to clean the area in the scribed boxes where you will mount the harness's ferrite beads. Expose the sticky backing on the ferrite beads and mount them in the scribed rectangles.

Note

If you don't place the ferrites correctly in marked areas, they will obstruct the placement of other components like the

MCE board.

• Replace the Pro Gaff tape in the frame opening under the display harness.

• After connecting the display harness to the LCD, secure it to the LCD frame with Pro

Gaff tape as shown.

• After reconnecting the main harness, mount the harness standoff to the frame (see main harness reassembly notes).

Service manual Section A 95

When replacing the LCD

• Peel the protective sheet from the LCD.

• Verify that the foam strips are installed on the back of the LCD near the top and bottom edges. On 1st generation displays (see image on the left), the foam strip extends halfway up from the bottom on both sides of the LCD. On 2nd generation displays, the foam strips are only on the top and bottom of the LCD (see image on the right).

1st generation displays 2nd generation displays

• Verify that the LCD flex cable feeds through the bezel's clearance feature.

• Insert the LCD into the bezel in the front housing with the LCD flex cable on the lower right as shown.

Remove modules in the bottom housing

Note

These instructions are similar to "Replace modules in the bottom housing" presented earlier, but this topic assumes that you are not simply replacing the modules. Instead, you have taken the wall system off the wall and are removing modules to replace the power button or the front housing. If you have already removed these modules, proceed to "Remove the module well." Otherwise, choose one of the two following options:

Option 1. Complete the following preliminary steps if your goal is to replace the front housing:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

Option 2. Complete the following preliminary steps if your goal is to replace the power button:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Power down the system and disconnect the AC power cord.

96 Section A Welch Allyn Connex

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Integrated Wall System

2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Note

The modules fit tightly in the housing but can become loose over time. Support the modules as you remove the module cover.

5. Remove the modules.

Slide each module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cables from the rear of each module.

Service manual Section A 97

Reassembly notes

• When aligning the module with the housing, the USB connection is on the left.

• The NIBP module must always be in the front-most slot.

Remove the module well

Option 1. Complete the following preliminary steps if your goal is to replace the front housing:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

• Remove the modules in the bottom housing.

Option 2. Complete the following preliminary steps if your goal is to replace the power button:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the modules in the bottom housing.

1. Disconnect the USB cables from the connectors on the main board in positions 6 and 7.

2. Remove the Torx screws on both sides of the module well.

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3. Remove the module well from the front housing. Remove the attached USB cables if necessary.

Reassembly notes

• Route USB cables properly:

○ Route cables through the module well to the correct corresponding module.

○ Route the NIBP and SpO2 USB cables over the Ethernet cable.

• Connect USB cables properly:

○ The NIBP module must be connected to USB position 7 on the main board.

○ The SpO2 module must be connected to USB position 6 on the main board.

Module USB connectors

USB slot Material number Connection

6

7

4

5

1

2

3

715891

715891

715891

715891

715891

715891

715891

MCE to modules—Braun if installed

MCE to modules

MCE to modules

MCE to modules

MCE to modules

MCE to SpO2

MCE to NIBP

Service manual Section A 99

USB slot Material number Connection

10

11

8

9

712980 n/a

715891

713282

MCE to communications board none

MCE to handle module PCBA

MCE to communications

Replace the power button

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the modules in the bottom housing.

• Remove the module well.

1. Disconnect the power button flex cable from the main board at J6.

2. Peel off and discard the power button from the front housing.

3. Thoroughly clean the housing surface with isopropyl alcohol before applying the new power button.

4. Completely remove the adhesive from the rear of the new power button.

5. Route the power button flex cable through the slot on the front of the system and firmly press the power button in the recessed well of the front housing.

6. Connect the power button flex cable to J6 on the main board.

Replace the front housing

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the modules in the main housing.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

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• Remove the power panel.

• Remove the power wire harness and the main wire harness.

• Remove the modules in the bottom housing.

• Remove the module well.

1. Disconnect all USB connections from the main board.

2. Remove the bundled USB cables from the housing by removing the two large

Phillips screws.

3. Disconnect the power button cable from the main board at J6.

4. Disconnect and remove the Ethernet cable.

5. Remove the four large Phillips screws that mount the LCD to the housing.

Service manual

6. Carefully lift the LCD and the attached main board from the housing.

CAUTION

Support the LCD as you lift the assembly from the housing. The LCD is not secured to the assembly.

7. Remove the two module tracks by removing the four Torx screws.

Section A 101

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Section B

This section applies to devices that meet all of the following criteria:

• manufactured after 12/2017

• MCE hardware version P5 or later

• serial number after 100023374817.

These devices comply with IEC 60601 3rd edition.

Note

If your device does not meet these criteria, see Section A for the correct disassembly and repair instructions.

Use service kits with the "3rd Ed" suffix when replacing the following components:

• MCE (mainboard)

• LCD display

• AC power supply

• AC power supply harness

• printer

• Ethernet cable

• rear housing

• product labels

Power down the device

You can power down the device as follows: 1) on devices with 2.X software, briefly press the power button on the housing and then following the onscreen prompts, or 2) on all devices, use onscreen controls alone.

Option 1.

After the device is powered up, briefly press of the power button to open an onscreen dialog with the following options:

Power down

. Device behavior varies based on the active profile, whether or not patient trend data is stored, and whether or not patient context is established. While servicing the device, you need not be concerned about these details. They only matter to clinicians who are monitoring patients and storing patient data.

Sleep

. The Sleep button clears the display and puts the device into Display powersaving mode.

Cancel

. The Cancel button dismisses the dialog.

Touch

Power down

and complete the power-down procedure.

103

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Option 2.

To use onscreen controls alone to power down the device, follow these steps:

1. Touch the

Settings

tab.

2. Touch the

Device

tab.

3. Touch

Power down

.

Note

The next three sections address disassembly and repair steps you can complete without removing the device from the wall or removing the battery. All steps presented after “Remove the system from the wall and remove the battery” require powering down as well as removing the device from the wall and removing the battery.

Service manual

Exploded view, front exterior

Section B 105

No.

Item

16

17

9

10

18

20

4

5

8

Side housing

SureTemp module

CIWS handle module assembly

Braun housing

Platform module, blank

Module cover

Communications cover housing

Cubby door

Side mounting bracket/Module retaining plate

No.

Item

44

45

42

43

50

23

30

41

Power button

Blue insert

NIBP module

SpO2 module

Braun dock

Strain relief, comms, PW

Ear speculum dispenser, small

Screw, M3 x 0.5, Pan Phillips

Replace modules in the bottom housing

1. Power down the system and disconnect the AC power cord.

2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

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4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Note

The modules fit tightly in the housing but can become loose over time. Support the modules to prevent them from falling out as you remove the module cover.

5. Remove the module you want to replace.

Slide the module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cable from the rear of the module.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the left.

• The NIBP module must always be in the front-most slot.

Service manual Section B 107

Replace modules in the main housing

Note

Check how the end cap or Braun thermometer housing are attached to the device. If bushings with captive screws attach the end cap or Braun thermometer housing to the side of the main housing as shown in step 1, proceed with the instructions as presented. If you don't see bushings with captive screws on the end cap or the Braun thermometer housing, then these parts are attached to the back of the chassis, not the right side. To remove these parts and access any front-facing modules, first remove the device from the wall. (See "Remove the system from the wall and remove the battery.")

1. Power down the system and disconnect the AC power cord.

2. Loosen the two captive #2 Phillips screws that hold the end cap or the Braun thermometer housing in place.

3. Remove the end cap or thermometer housing by sliding the piece away from the wall and then to the right.

4. Disconnect the USB cable from the Braun dock, which you can access from the rear of the Braun housing.

5. Locate and remove the module retaining plate by removing the four #2 Phillips screws.

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6. If SureTemp is installed, remove the module and the probe cover storage together, sliding them out the open end, and disconnect the USB cable.

7. Slide any blank face plates or modules to be removed toward the open end.

Note

When removing any connected modules, disconnect the

USB cables before you remove the module.

Note

If you are replacing a Braun 4000 thermometer with a Braun

6000 thermometer, you must also replace the dock.

Remove the Braun dock from the housing

1. Hold the Braun housing with your right hand and the dock with your left hand as shown. With your right-hand fingers inside the housing, gently press the housing toward you and away from the dock. At the same time, gently push the dock away from you until the dock unsnaps from the housing.

2. When the dock is completely loose, remove it from the housing.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the bottom.

• The temperature module must always take up the last two spots closest to the end.

• The blank cover's beveled edge must be on the right when facing the device for proper alignment.

Service manual Section B 109

• When replacing the Braun dock, insert the bottom of the dock into the housing, align the molded ridges in the top of the dock with the slots in the top of the housing, and snap the dock into the housing.

Remove the system from the wall and remove the battery

1. Power down the system and disconnect the AC power cord.

2. Disconnect any detachable sensors and cables:

• Blood pressure cuffs and hoses

• Temperature probes and cables

• Braun thermometer

• SpO2 sensors and cables

• 3.5V instrument heads

3. Remove any items in the storage area and any other loose items before attempting to remove the system from the wall.

4. Close the storage area door and seal it with a piece of adhesive tape to prevent the door from opening.

5. Remove the speculum holder by lifting it up and away from the handle housing.

6. Remove the AC power cord.

7. Remove the communications connection cover.

Loosen the two captive screws, using a #2 Phillips screwdriver, until the cover is free from the housing.

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8. Remove the wall anchor screws using a #2 Phillips screwdriver.

9. Hold the bottom and top of the system and push it up to remove the system from the wall mounting bracket.

10. Place the wall system on a table or flat work surface so that the back of the wall system faces up. Ensure that the display is protected from pressure or getting scratched.

11. Locate the battery, indicated by

12. Remove the battery.

Remove the light-bar board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Remove the two torx screws from the light-bar cover.

2. Remove the light bar and cover.

Service manual Section B 111

3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. Remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

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Exploded view, rear interior

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No.

Item

11

12

6

7

1b

2b

3

15

19

13

14

LCD with touchscreen

Main board

Main housing

Platform fan assembly

Platform speaker assembly

Module well assembly

Light bar

Power panel

Battery housing

Module track

Light-bar cover

21 Light-bar board

No.

Item

36

37

34

35

31

32

33

40

50

38

39

51

LCD bezel

LCD frame

Chassis

Cable, USB client

Handle assembly

PCBA: Platform 767 controller, pattern E

Handle, cradle, and opticals assembly, cool blue

Housing, front handle

Housing, rear handle

IR connector and wire assembly

Screw, M4 x 10, Pan head with nyloc (Large

Phillips screw)

Screw, M3 x 0.5, Pan Phillips (Small Phillips screw)

Service manual Section B 113

No.

Item

22

23

30

Battery connector

Power button and flex cable

Blue insert

No.

Item

52

53

Screw, Plastite #4-20 x .500 Pan head (Torx screw)

CCH44-S10 P-clamp, 0.437

Remove the handle module assembly

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Cut and remove the cable tie that holds the USB ferrite in place.

2. Disconnect the USB cable.

3. Remove the ferrite from the USB cable by pulling apart the two clips and lifting up.

4. Remove the four large Phillips screws while supporting the end of the handle module assembly.

5. Lift the handle module assembly up and away from the main assembly while guiding the USB cable through the slotted opening.

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Remove the handles

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

1. Remove the six large Phillips screws on the back of the assembly, then lift and remove the rear handle housing.

2. Disconnect the handle connector wires from the 767 Controller PCBA.

3. Lift and remove the handle cables from the front handle housing.

Reassembly note

When reconnecting the handle connection wires to the handle PCBA, the connecting wires must be facing up and away from the PCBA.

Remove the 767 controller PCBA

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

Service manual

• Remove the handle module assembly.

• Remove the handles.

1. Disconnect the two IR wire connectors from the handle PCBA.

Section B 115

2. Remove the three Torx screws.

3. Lift and remove the PCBA.

Reassembly note

When reconnecting the IR wire connectors to the handle PCBA, the connecting wires must be facing down and toward the cradle assemblies.

Remove the handle cradle and optical assemblies

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Remove the handles.

• Remove the 767 Controller PCBA.

1. On the rear of the assembly, disconnect both IR wires from the optical sensors.

2. Push in the snap tabs and remove the cradle assembly by pushing outward.

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Reassembly notes

• For ease of assembly, connect the IR wire assemblies to the optical sensors before attaching the handle cradle to the handle assembly housing.

• Attach the connector with the black and white wires to the optical detector

(indicated by the letter "B" molded into the cradle plastic). Attach the connector with the red and white wires to the optical emitter. The wires should face inward once the handle cradle is assembled.

• Snap the handle cradle assembly into the front housing. Make sure that the cradle assembly tab and the beveled edge are at the top of the housing.

Open the chassis

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

1. Remove the Braun module if present as described in "Remove modules from the main housing."

2. Remove the 8 screws as shown.

Service manual Section B 117

3. Remove the two Torx screws securing the client USB connector to the housing, and then disconnect and remove the cable.

CAUTION

Multiple wire connections are still connected between the front housing and the chassis. These must be disconnected before it is safe to completely separate the two pieces.

4. Carefully lift the top of the chassis away from the front housing while leaving slack in all cable connections.

From the communications board, disconnect the following in the order presented:

Number Item

1 Small 4-pin connector

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Number Item

2

3

4

Mini USB cable

USB cable

Ethernet cable

5. Disconnect the power supply cable from the power supply.

6. Separate the chassis from the front housing enough to make the AC power harness ground connection reach the dual spade connector.

7. Disconnect the AC power harness ground wire from the dual spade connector on the LCD frame.

Reassembly notes

• Align the chassis with the front housing.

• Connect the ground wire to the dual spade connector on the LCD frame.

• Connect the large USB connector on the communications board.

• Connect the mini-B USB connector on the communications board.

• Connect the small 4-pin connector on the communications board.

• Connect the power harness to the power supply.

• Connect the Ethernet cable on the communications board.

• Lower the chassis onto the front housing while pushing the Ethernet cable between the molded standoff and the housing to clear the antenna board.

• Guide the end of the client USB cable through the opening in the front housing.

• Align the tab between the cable guides (next to the USB client) with the slot on the front housing and snap the chassis and front housing together.

• Inspect all the seams between the front housing and the chassis for proper fit.

Service manual

• Install the screws to secure the front housing to the chassis.

Section B 119

120 Section B

Exploded view, chassis

Welch Allyn Connex

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No.

Item No.

Item

33

51

Chassis 56

Screw, M3 x 0.5, Pan Phillips (Small Phillips screw) 57

52 Screw, Plastite #4-20 x .500 Pan head (Torx screw) 58

54a Power supply, 60W 59

55 Communications board

Radio board

Antenna board

Ground lug

IEC connector

Remove the power supply

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the green ground cable and the AC power harness from the power supply.

Service manual Section B 121

2. Remove the four Torx screws.

3. Remove the power supply.

Reassembly note

When reinstalling the power supply, orient the board so that the end of the board with the AC-to-power-supply (J1) connection is closest to the IEC connector.

Remove the ground lug, AC power harness assembly, and IEC connector

Note

Do not disconnect the AC power harness from the IEC connector unless you are replacing it. Once your disconnect the AC power harness, you cannot reuse it.

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the AC power harness and ground from the power supply.

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2. To remove the ground lug: a. Remove the 10mm hex nut and slide out the star lock washer and the ground wire (power supply) ring terminal.

b. Remove the next 10 mm hex nut and slide out the star lock washer, the ground wire (mains) ring terminal, and the flat washer.

c. Remove the bare ground lug by pulling it out from the outside of the chassis.

3. To remove the IEC connector: a. Disconnect the three power wires: blue neutral (N), green ground (G), and brown line (L).

Note

You must now replace the AC power harness. It cannot be reused.

b. Push in on the three plastic release tabs to release the IEC connector.

Remove the communications board

Complete the following preliminary steps:

Service manual

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the mini-USB connection on the outside of the chassis.

Section B 123

2. Turn over the chassis to access the communications board.

3. Remove the four Torx screws.

4. Lift the communications board from the chassis.

5. For systems with the radio option, remove the tape securing the antenna cable, and rotate the communications board counter-clockwise to clear the chassis. Make sure not to pull on the antenna cable. Turn the board over and place it inside the chassis.

6. If replacing the communications board, remove the radio board as described in

"Remove the radio board and antenna."

Remove the radio board and antenna

Note

Do not remove the radio antenna from the chassis unless you are replacing the radio and antenna or the chassis.

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Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the ground lug, AC power harness, and IEC connector.

• Remove the communications board.

1. Remove the radio board: a. Turn the communications board over to access the radio board, taking care to avoid straining the antenna cable.

b. Remove the four small Phillips (machine) screws securing the radio board to the communications board.

c. Hold the communications board with one hand while grasping the radio board at the opposite end from the antenna connection and pull the radio board away from the communications board.

2. Remove the antenna and antenna cable.

a. Remove the Pro Gaff tape securing the antenna cable to the housing.

b. Carefully disconnect the antenna cable by lifting up on the wire neck just before the connection point.

c. Use a soft tool such as a spudger to separate the adhesive from the inside of the chassis of the antenna plate.

Reassembly notes

If the antenna is removed:

Service manual Section B 125

• Clean the chassis and mounting surface with 70 percent isopropyl alcohol.

• Peel the backing off the double-stick tape and affix it to the chassis antenna plate.

• Mount the antenna to the antenna plate. Make sure the PG terminal on the antenna board is facing outwards.

Antenna cable connection:

• Attach the antenna cable to terminal G on the radio board. Attach the other end of the cable to the antenna on terminal PG.

• Once the antenna, radio, and communications board are mounted and secure, secure the antenna cable to the housing with Pro Gaff tape.

Replace the chassis

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the communications board.

• For systems with the radio option, remove the radio board and antenna.

Remove the USB client cable from the outer side of the chassis by removing the two

Torx screws.

Disconnect or remove the light bar

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

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• Remove the handle module assembly.

• Open the chassis.

1. Remove the two Torx screws from the light-bar cover.

2. Remove the light bar and cover.

3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. If replacing the light-bar board, remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

Disconnect or remove the fan

Complete the following preliminary steps:

Service manual

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the power cable from the fan harness connector.

Section B 127

2. Press the flanges on the sides of the fan harness connector and separate the fan connector from the power panel.

3. If you are removing the fan, slide the fan up and remove.

Reassembly note

Install the fan with the label facing the power panel.

Disconnect or remove the power panel

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

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• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the fan.

1. If you haven't done so already, disconnect the power cable from the fan harness connector.

2. Disconnect the two harness connectors from the battery board.

3. Disconnect the speaker connector wire.

4. Remove the two Torx screws that attach the power panel to the front housing and slide the power panel out of the housing.

Service manual Section B 129

5. Pull the module handle assembly USB cable through the access hole in the power panel.

Reassembly notes

• Pull the module handle assembly USB cable through the access hole in power panel before securing the power panel to the housing.

• When installing the power panel in the housing, do not obstruct the channel or allow the battery board or battery housing to push the LCD flex sideways.

• Reconnect the speaker, battery board, and fan harnesses.

Remove the speaker

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Carefully pry the speaker and adhesive away from the power panel.

2. Remove any remaining gasket material and clean the surface with 70 percent isopropyl alcohol.

3. Remove the paper on the speaker to expose the adhesive on the gasket.

4. Apply pressure to the outer radius of the speaker assembly to assure good adhesion with the power panel.

Replace the battery board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Remove the battery compartment from the power panel by pushing in on the four plastic tabs.

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2. Remove the two Torx screws from the battery compartment and remove the battery board.

3. Secure the new battery board to the battery compartment with two Torx screws.

Disconnect or remove the power wire harness and main wire harness

Note

Note

If removing the main board or LCD, it is not necessary to cut wire ties attaching the harness to the housing unless you are replacing the harness or the housing.

When replacing the main harness, you must disconnect the light-bar board from the main harness.

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the USB connections from the main board in positions 1 through 9.

Remove the USB cables from the cable separator to clear the work area.

Service manual Section B 131

2. Disconnect the connectors as follows:

• To disconnect the power harness, disconnect the connectors at J29 and J30.

• To disconnect the main harness, disconnect the connectors at J34, J12, J49,

J46, and J45.

3. If you are replacing the power harness, disconnect the power harness from the power panel and carefully cut the two wire ties and remove the harness.

4. If you are replacing the main harness, disconnect the main harness from the power panel and carefully cut the two wire ties to remove the harness.

Reassembly notes

When replacing the main harness:

• Align the shrink-wrapped sections and their wire tie anchors with the light-bar wires on the left.

• Feed the light-bar wires through the rectangular opening in the bottom of the housing to the right of the module well.

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• Attach the harness to the main housing using the wire tie anchors closest to the display or front of the housing.

When replacing the power harness:

• Align the shrink-wrapped sections with the wire tie anchors.

• Align the end with the wire tie closest to the end on the left to connext with the main board.

• Attach to the main housing using the wire tie anchors closes to the back of the housing.

• Route the connections from the main harness to the main board (communications power, light bar, fan)

over

the last USB cable,

under

the remaining USB cables, and

through

the harness standoff. Twist to lock the harness in the standoff.

Remove the main board

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

1. Disconnect the following on the main board: a. The power button flex cable at J6.

b. The LCD harness at J19.

c. The LCD flex cable at J48.

2. Remove the Ethernet cable:

Service manual Section B 133 a. Disconnect the Ethernet cable from the Ethernet cable connector at J11 on the main board.

b. Remove the screw that secures the Ethernet cable P-clamp to the main board.

c. Remove the Ethernet cable.

3. Remove the seven small Phillips screws that secure the main board to the LCD frame.

4. Remove the main board.

Reassembly notes

• Ensure that the LCD flex cable is not under the main board.

CAUTION

The solder joint of the LCD connector (J48) is fragile. When inserting or removing the flex cable, do not stress the solder joint.

• Connect the Ethernet cable to the main board.

• Route the Ethernet cable

under

the power harness and

over

the main harness.

• The USB cable runs over the Ethernet cable as shown.

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• Use a wire tie to secure the Ethernet cable to the anchor mounted on the housing just below the screw, securing the USB cables as shown.

When replacing the main board

Note

Use only 3rd edition-compliant main boards.

• When ordering the replacement main board, order the standard license for the model being serviced. You will receive an authorization code to enter in the service tool to reactivate the licenses included with the original configuration.

• Before installing the main board, record the serial number of the main board.

• After reassembling the system, use the service tool to provision the system as follows:

○ Enter the device’s serial number. This can be found on the bottom of the device.

○ Enter the main board (host controller) serial number.

○ Select the Connex Integrated Wall System from the device model dropdown menu.

○ Restore any previously licensed features by entering the authorization code in the service tool. Use the authorization codes that accompanied the replacement board, along with any additional license authorization codes previously installed.

Record the device serial number on the license authorization code cards received with the replacement board and retain for future use. If the license is lost, you can reuse the authorization code on the same device.

○ Update the host controller software to the current version or version in use at your facility. If the required version of the host software is not available after connecting the device to the service tool, contact Welch Allyn Technical Support.

Service manual Section B 135

Remove the LCD

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

• Remove the main board.

1. Remove the tape and disconnect the LCD harness from the LCD. For easier access to the connector, you can slide the ferrite bead closest to the connector up the harness.

2. Disconnect the LCD ground wire from the dual spade connector.

3. Remove the four large Phillips (shoulder) screws that secure the LCD frame along with the dual spade connector.

4. Remove the LCD frame.

Note

Be sure to support the LCD if you are removing it with the frame. The foam strips on the LCD might cause the LCD to stick to the frame.

5. Remove the LCD.

Reassembly notes

• Insert the display into the bezel with the LCD flex cable on the lower right as shown.

Verify that the LCD flex cable feeds through the bezel’s clearance feature.

136 Section B Welch Allyn Connex

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• Center the LCD and bezel in the main housing's molded channel with the bottom near the screw bosses.

• Place the LCD frame over the LCD. Verify that the LCD frame does not cover the

LCD flex cable.

• Install the dual spade connector and secure it to the frame with the large Phillips screw closest to the LCD ground wire (lower right).

• Replace the Pro Gaff tape in the frame opening under the display harness as shown.

• After connecting the display harness to the LCD, secure the harness to the LCD frame with Pro Gaff tape as shown.

Service manual Section B 137

When replacing the LCD frame

• Install a 3-inch strip of Pro Gaff tape over the top part of the LCD harness cutout to protect the LCD harness from abrasion.

• Install the LCD harness. Use isopropyl alcohol to clean the area in the scribed boxes where you will mount the harness's ferrite beads. Expose the sticky backing on the ferrite beads and mount them in the scribed rectangles.

Note

If you don't place the ferrites correctly in marked areas, they will obstruct the placement of other components like the

MCE board.

• Replace the Pro Gaff tape in the frame opening under the display harness.

• After connecting the display harness to the LCD, secure it to the LCD frame with Pro

Gaff tape as shown.

• After reconnecting the main harness, mount the harness standoff to the frame (see main harness reassembly notes).

When replacing the LCD

• Peel the protective sheet from the LCD.

• Verify that the foam strips are installed on the back of the LCD near the top and bottom edges.

• Verify that the LCD flex cable feeds through the bezel's clearance feature.

• Insert the LCD into the bezel in the front housing with the LCD flex cable on the lower right as shown.

138 Section B Welch Allyn Connex

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Remove modules in the bottom housing

Note

These instructions are similar to "Replace modules in the bottom housing" presented earlier, but this topic assumes that you are not simply replacing the modules. Instead, you have taken the wall system off the wall and are removing modules to replace the power button or the front housing. If you have already removed these modules, proceed to "Remove the module well." Otherwise, choose one of the two following options:

Option 1. Complete the following preliminary steps if your goal is to replace the front housing:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

Option 2. Complete the following preliminary steps if your goal is to replace the power button:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Power down the system and disconnect the AC power cord.

2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Service manual Section B 139

Note

The modules fit tightly in the housing but can become loose over time. Support the modules as you remove the module cover.

5. Remove the modules.

Slide each module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cables from the rear of each module.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the left.

• The NIBP module must always be in the front-most slot.

Remove the module well

Option 1. Complete the following preliminary steps if your goal is to replace the front housing:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

• Remove the modules in the bottom housing.

Option 2. Complete the following preliminary steps if your goal is to replace the power button:

140 Section B Welch Allyn Connex

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• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the modules in the bottom housing.

1. Disconnect the USB cables from the connectors on the main board in positions 5 and 6.

2. Remove the Torx screws on both sides of the module well.

3. Remove the module well from the front housing. Remove the attached USB cables if necessary.

Reassembly notes

• Route USB cables properly:

Route cables through the module well to the correct corresponding module.

Route the NIBP and SpO2 USB cables over the Ethernet cable.

• Connect USB cables properly:

The NIBP module must be connected to USB position 6 on the main board.

The SpO2 module must be connected to USB position 5 on the main board.

• Place the USB cables in the 9-hole separator with the end that will connect to the main board extending approximately two inches. When positioning the USB cable separator on the main board, place the left end in the space marked for the cable separator as shown.

Service manual

Module USB connectors

USB slot Material number Connection

7

8

5

6

9

3

4

1

2

717575

715891

715891

715891

715891

715891

712980

715891

713282

MCE to modules—Braun if installed

MCE to modules

MCE to modules

MCE to modules

MCE to SpO2

MCE to NIBP

MCE to communications board

MCE to handle module PCBA

MCE to communications

Replace the power button

Complete the following preliminary steps:

Section B 141

142 Section B Welch Allyn Connex

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• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the modules in the bottom housing.

• Remove the module well.

1. Disconnect the power button flex cable from the main board at J6.

2. Peel off and discard the power button from the front housing.

3. Thoroughly clean the housing surface with isopropyl alcohol before applying the new power button.

4. Completely remove the adhesive from the rear of the new power button.

5. Route the power button flex cable through the slot on the front of the system and firmly press the power button in the recessed well of the front housing.

6. Connect the power button flex cable to J6 on the main board.

Replace the front housing

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the modules in the main housing.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

• Remove the modules in the bottom housing.

• Remove the module well.

1. Disconnect all USB connections from the main board.

2. Remove the bundled USB cables from the housing by removing the two large

Phillips screws.

Service manual Section B 143

3. Disconnect the power button cable from the main board at J6.

4. Disconnect and remove the Ethernet cable.

5. Remove the four large Phillips screws that mount the LCD to the housing.

6. Carefully lift the LCD and the attached main board from the housing.

CAUTION

Support the LCD as you lift the assembly from the housing. The LCD is not secured to the assembly.

7. Remove the two module tracks by removing the four Torx screws.

144 Section B Welch Allyn Connex

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145

Functional verification and calibration

Functional verification tests

The functional verification tests help to confirm the proper operation of the device and its options. The tests may also be useful as a diagnostic tool to help isolate a malfunction. It is not necessary to disassemble the device to perform these tests.

For periodic service, you can—at a minimum—perform the basic functional verification tests described in this manual. These tests are for customers who have the Standard unlicensed edition of the Welch Allyn Service Tool. If you have the Gold licensed edition of the service tool, use the tool to perform a complete functional verification and calibration of the device in lieu of performing the basic tests.

Note

To document basic functional verification tests, print out the "Service record" sheets at the end of this manual and record the test results.

Any time you open the case, you must use the service tool, Gold licensed edition, to perform a complete functional verification and calibration of the device before returning the device to service.

Note

For instructions on using the Gold licensed edition, see the service tool help files.

About the Welch Allyn Service Tool

The service tool is required to complete functional verification and calibration tests. The service tool is available in the following editions:

Standard unlicensed edition

: Enables NIBP functional verification tests to satisfy the recommended annual service. If any Standard unlicensed edition testing shows an out-of-specification result, use the Gold licensed edition to perform a full calibration.

Gold licensed edition

: Checks the functionality and calibration of the device. As it checks the device, the Gold licensed edition also performs any needed calibration to bring the device within specifications. This full suite of tests is required to complete a repair. Each time you open the case, you must use the Gold licensed edition to test the device before returning the device to normal use.

For information about the service tool, see the following:

• For instructions on installing and using the service tool, see the

Welch Allyn Service

Tool Installation and Configuration Guide.

146 Functional verification and calibration Welch Allyn Connex

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• To use the Standard unlicensed edition to test the NIBP module, follow the instructions in this service manual.

• For instructions on using the Gold licensed edition, see the service tool help files.

Standard unlicensed edition service tool tests performed

The service tool performs the following functions on the host device and installed options.

Test Description

Reads firmware Displays the firmware version

Firmware upgrade Loads the latest firmware into the module

Leak test Verifies leaks using 100 cc volume

Accuracy test (NIBP) Checks the accuracy of transducers across the pressure range

Overpressure test Verifies the maximum cuff pressure for adults and neonates

NIBP Temp SpO2 SpHb Host

Gold licensed edition service tool tests performed

The service tool tests the host device and installed options as listed in the following table.

Test Description NIBP Temp SpO2 SpHb Host

POST

Firmware version

Performs the power-on self test

(POST)¹

Checks the firmware version

Firmware upgrade Loads the latest firmware into the module

Leak Verifies leaks using 100 cc volume

AD noise

Calibration

Accuracy (NIBP)

Checks noise on the pressure channel

Calibrates pressure transducers

Dump

Inflation

Checks the accuracy of transducers across the pressure range

Checks dump valves

Verifies the pneumatic pump

Service manual Functional verification and calibration 147

Test

Valve control

Description

Verifies control of the system valve

Overpressure Verifies pump limits

Probe detect

Accuracy (Temp)

Functional check

Masimo SpO2 and

SpHb functional check

Display

Verifies the operation of the probe detect switch²

Verifies the accuracy of the thermometer across range

Verifies module operation with calkey²

Verifies module operation with rainbow SET tester

Verifies video output

NIBP Temp SpO2

Back light interface Verifies display LED back light

Verifies touchscreen calibration Touchscreen interface

LED

Fan interface

Verifies the light bar amber and red

LED strings

Verifies fan operation

Beeper

Nurse call relay

Battery operation

Verifies the buzzer

Verifies the nurse call relay

Verifies the internal battery

Speaker Verifies the speaker

USB host port communication

Verifies the USB ports

Ethernet communication

Verifies the Ethernet port

¹ POST testing checks the following:

NIBP

: ROM, RAM, A/D channels, calibration, and user configuration.

Temperature

: ROM, RAM, calibration, and heater.

SpO2

: ROM and RAM, and connection to the SpO2 board.

² SureTemp Plus only.

³ Normal mode.

SpHb Host

148 Functional verification and calibration Welch Allyn Connex

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Basic functional verification checks

Note

Calibration is available only with the service tool, Gold licensed edition.

The basic functional verification test using the Welch Allyn Service Tool Standard edition meets the minimum requirements for routine preventive maintenance. These tests verify basic functionality of the NIBP, SpO2, SpHb, and thermometry parameters. Welch

Allyn recommends using the service tool, Gold licensed edition, to perform verification of the device when completing a repair.

Basic functional verification check tools

Listed below are the all the tools required to perform the basic functional test.

Material no.

407672

N/A

DOC-10

06138-000

01802-110

411690

Description

BP test volume repair fixture 113670

Masimo Rainbow SET tester (Masimo part number 2368)

Cable, SpO2 extension, Nellcor

Cal-key, assembly, M690/692

Tester, calibration, 9600 Plus

Qty Component

1

1

1

1

3

3

NIBP

Masimo SpO2

Nellcor SpO2

SureTemp Plus

Thermometry Module

Braun ear and

SureTemp

Thermometry Probe

Braun ear

N/A

N/A

4500-925

PRO 6000 calibration fixture*

*Use with older models have a dust cover screw that rises above the O-ring washer. Newer models have a dust cover screw that is recessed into the washer.

Pressure meter (must include at least one decimal point and be accurate to within ±0.5 mmHg)

Nellcor SpO2 simulator (SRC-MAX)

USB 2.0/5-pin Mini-B cable, gold, 6 ft.

1

1

1

NIBP

6000-30

N/A web download

N/A

4500-30

620216

Single tube blood pressure hose, 5 ft.

PC running Windows XP SP3, Windows 7, or Windows 8

Welch Allyn Service Tool

Click this link .

Blood pressure Y-tube

Blood pressure hose, 5 ft.

Fitting "Y" 1/8 X 1/8 X 1/8

1

1

1

1

1

1

Nellcor SpO2

NIBP, Software updates

NIBP

ALL

NIBP, Software updates and calibration

NIBP

NIBP

NIBP

Service manual Functional verification and calibration 149

Material no.

N/A

Description

ECG patient simulator calibrated to ISO/IEC standards with defined amplitudes for Lead I, Lead II, Lead III, and Lead IV when using a 5-lead patient cable -OR- an ECG patient simulator with defined amplitudes for Lead I, Lead II, and

Lead III when using a 3-lead patient cable.

Qty Component

1 ECG

Full functional verification check and calibration tools

The list of tools below is what is required to perform a full device functionality check and calibration. The tools are used in conjunction with the Welch Allyn service tool, Gold licensed edition, to perform a device calibration.

Material no.

01802-110

407672

411690

Description

Tester, calibration, 9600 Plus

1

3

Qty Component

3 Braun ear and

SureTemp

Thermometry Probe

NIBP

Braun ear

N/A

DOC-10

06138-000

N/A

BP test volume repair fixture 113670

PRO 6000 calibration fixture*

*Use with older models have a dust cover screw that rises above the O-ring washer. Newer models have a dust cover screw that is recessed into the washer.

Masimo Rainbow SET tester (Masimo part number 2368)

Cable, SpO2 extension, Nellcor

Cal-key, assembly, M690/692

1

1

1

1

Masimo SPO2

Nellcor SPO2

SureTemp

Thermometry Module

NIBP

N/A

4500-925

106270

Pressure meter (must include at least one decimal point and be accurate to within ±0.5 mmHg)

Nellcor portable oximetry tester (SRC-MAX)

USB 2.0/5-pin Mini-B cable, gold, 6 ft.

Service test box

1

1

1

660-0138-00

407022

N/A

6000-30

N/A

Cable, patch 5 feet RJ45, T568B

Assy, MMF Nurse call cable - service

USB cable Type A to Type B (3 ft.)

Single tube blood pressure hose, 5 ft.

Netgear wireless router, a/b/g or equivalent

1

1

1

1

1

Nellcor SPO2

NIBP

Nurse Call, Voltage &

Current,USB ports

Ethernet Test

Nurse Call (Service

Test Box Required)

USB Ports (Service

Test Box Required)

NIBP

Wired & Wireless

Test

150 Functional verification and calibration Welch Allyn Connex

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Material no.

N/A web download

N/A

4500-30

620216

Description

PC running Windows XP SP3, Windows 7, or Windows 8

Welch Allyn Service Tool (version 1.8 or later)

Click this link

Blood pressure Y-tube

Blood pressure hose, 5 ft.

Fitting "Y" 1/8 X 1/8 X 1/8

Create a blood pressure Y-tube

1

1

1

Qty Component

1

1

All

NIBP, Software updates

NIBP

NIBP

NIBP

The blood pressure Y-tube is a piece of custom test equipment that connects the device to the test setup. The Y-tube is composed of a modified blood pressure hose and a Ytype fitting. Follow these instructions to create a Y-tube.

1. Cut a 4500-30 blood pressure hose approximately 6 inches from the connector that connects to the device.

2. Split the end of the dual-lumen hose to create two separate hoses. Make sure not to puncture either hose.

3. Insert one end of the Y-type fitting into each end of the hose.

NIBP test setup

For the NIBP leak test, overpressure test, or accuracy check, connect the test equipment shown below. Connect the manifold to the volume repair fixture as indicated by the service tool or the test procedure.

4 6

5

3

1

2

Service manual Functional verification and calibration 151

2

3

No.

Item

1 Test volume repair fixture with test manifold, bulb, and valve

Pressure meter

Blood pressure Y-tube

5

6

No.

Item

4 Device

USB 2.0/5-pin type A to mini-B cable

PC

NIBP leak test (Standard unlicensed edition)

The NIBP leak test is performed automatically using the service tool. The leak test pressurizes the system with a start pressure (P s

) of 250 mmHg ± 10 mmHg. After 15 seconds (T t

) the end pressure (P formula L = (P s

– P e

)/ T t e

) is measured. The leak rate is calculated using the

. The test fails if the leak rate exceeds 5 mmHg in 15 seconds.

Perform an NIBP leak test

1. Set up the test equipment.

2. Launch the service tool on the PC.

3. If the simplified interface is active, choose the Service option.

4. Log on with your user ID and password or with ADMIN as the user ID and leave the password field blank.

5. Power on the device.

6. Select the device you want to test from the device list.

7. Click

NIBP Sensor

under the Device Information tab.

8. Click

Leak Test

in the NIBP Sensor pane on the right side of the window.

9. Follow the prompts until the test completes.

10. Click

Close

.

11. To view the results, open the active log file by selecting

File

>

View Log File

>

Active log file

>

Ok

.

12. To record the results of your test, go to “Service record.”

NIBP overpressure test (Standard unlicensed edition)

The NIBP overpressure test is performed automatically using the service tool. The overpressure test verifies that the NIBP system will prevent the pressure from exceeding 329 mmHg in adult mode and 164 mmHg in neonate mode. To pass this test, the device must shut down the pump and open the valves when the pressure is between 280 mmHg and 329 mmHg in adult mode, or 130 mmHg to 164 mmHg in

Neonate mode.

Perform an NIBP overpressure test

Note

If you are performing this test after performing the NIBP leak test, skip to step 7.

1. Set up the test equipment.

2. Launch the service tool on the PC.

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3. If the simplified interface is active, choose the Service option.

4. Log on with your user ID and password or with ADMIN as the user ID and leave the password field blank.

5. Power on the device.

6. Select the device you want to test from the device list.

7. Click

NIBP Sensor

under the

Device Information

tab.

8. In the NIBP Sensor pane on the right side of the window, click

Over Pressure Test

.

9. Follow the prompts until the test completes.

10. Click

Close

.

11. To view the results, open the active log file by selecting

File

>

View Log File

>

Active log file

>

Ok

.

12. To record the results of your test, go to “Service record.”

NIBP accuracy check (Standard unlicensed edition)

The NIBP accuracy check is performed manually using the service tool to control the valves. The accuracy check compares the reading from the primary transducer pressure shown in the service tool window with the reading from an external calibrated digital pressure meter. The results of this check are not recorded in the service tool log file. To record the results for your records, copy the table in the service record section of the service manual. If a calibration is required, run the NIBP calibration included with the

Gold licensed edition of the service tool.

WARNING

Patient safety risk. If the primary transducer fails, the system might not identify an overpressure condition at the right limit, causing injury when the device is re-connected to a patient. To ensure patient safety,

Welch Allyn recommends that a qualified service technician perform a full functional verification and calibration on an annual basis.

CAUTION

Equipment calibration error can occur. This accuracy check verifies only the accuracy of the primary transducer. If the safety transducer is out of calibration, a calibration error can occur due to the pressure difference between the primary transducer and the safety transducer. To avoid equipment calibration errors, Welch Allyn recommends that a qualified service technician perform a full functional verification and calibration on an annual basis.

Perform an NIBP accuracy check

Note

If you are performing this test after performing a previous NIBP check, skip to step 7.

1. Set up the test equipment.

2. Launch the service tool on the PC.

3. If the simplified interface is active, choose the Service option.

4. Log on with your user ID and password or with ADMIN as the user ID and leave the password field blank.

5. Power on the device.

6. Select the device you want to test from the device list.

7. Click

NIBP Sensor

under the

Device Information

tab.

Service manual Functional verification and calibration 153

8. Click

Accuracy Check

in the NIBP Sensor pane on the right side of the window.

9. Connect the 500cc volume.

10. Turn on the pressure meter and zero if necessary.

11. Check the accuracy at 0 mmHg.

12. Record the reading on the pressure meter and the service tool and compare the results.

13. Using the hand bulb, pressurize the NIBP system to 50 mmHg ± 5 mmHg and allow

10 seconds for the pressure to stabilize.

14. Record the reading on the pressure meter and the service tool and compare the results.

15. Using the hand bulb, pressurize the NIBP system to 150 mmHg ± 5 mmHg and allow 10 seconds for the pressure to stabilize.

16. Record the reading on the pressure meter and the service tool and compare the results.

17. Using the hand bulb, pressurize the NIBP system to 250 mmHg ± 5 mmHg and allow 10 seconds for the pressure to stabilize.

18. Compare the reading on the pressure meter to the service tool reading and record the results.

19. Click

Open valve

to open the NIBP valves. Verify that the pressure on the meter and service tool change to zero.

20. Click

Done

to complete the check.

21. To record the results of your test, go to “Service record.”

SpO2 and SpHb tests

Use this procedure to test the device's SpO2 and SpHb functions, if included.

Perform a Masimo SpO2 and SpHb test

1. Power on the device.

2. Touch the

Settings

tab.

3. Touch the

Device

tab.

4. Touch

Intervals Monitoring

.

5. Touch the

Home

tab.

6. Connect the Masimo rainbow SET tester to the device.

7. Give the device up to 30 seconds to stabilize and then verify a displayed pulse rate of

61 bpm ± 1 bpm and a displayed SpO2 of 81% ± 3%.

8. If the SpHb option is active, verify that the parameter is displayed with a reading of

14 g/dL ± 1 g/dL.

Perform a Nellcor SpO2 test

Use this procedure to test only the device SpO2 function.

1. Power on the device.

2. Connect the Nellcor SRC-MAX SpO2 functional tester to the SpO2 input connector through a Nellcor DOC-10 extension cable.

154 Functional verification and calibration Welch Allyn Connex

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Note

In the following tests, if the SRC-MAX defaults are outside the device alarm limits, readjust the limits or silence the alarms.

3. Verify the following on the SRC-MAX:

• All of the device LEDs flash: left panel, center panel, and right panel.

• The SRC-MAX initializes to default condition where the four test parameter LEDs are lit closest to their selector buttons.

• The default pulse rate is 60 bpm and the default SpO2 is 75%.

4. Give the device up to 30 seconds to stabilize, and verify a displayed pulse rate of 60

±1 bpm and a displayed SpO2 of 75% ±1 sat point.

5. Set the SRC-MAX pulse rate to 200 bpm.

6. Give the device up to 30 seconds to stabilize, and verify a displayed pulse rate of 200

±2 bpm.

7. Set the SRC-MAX SpO2 saturation percentage to 90.

8. Give the device up to 30 seconds to stabilize, and verify a displayed SpO2 saturation level of 90% ±1 sat point.

9. Disconnect the SRC-MAX.

SureTemp temperature system test

The SureTemp temperature system test is performed using a calibration key (cal-key).

The calibration key tests the system using a fixed resistance to display a temperature of

97.3 ± 0.3 °F (36.3 ± 0.2 °C).

Perform a SureTemp temperature system test

1. With the system power on and the temperature probe in the well, disconnect the probe cable from the temperature input connector on the front of the device.

2. Connect the calibration key to the temperature input connector.

3. Remove the probe from the well.

4. Verify that the displayed temperature is 97.3 ± 0.3 °F (36.3 ±0.2 °C).

SureTemp temperature probe and system test

Use this procedure to test the temperature function while verifying the temperature probe. To achieve accurate results, you must perform this test with the device in Direct mode.

Test each probe at the low, medium, and high set points on the tester. Repeat the procedure for each thermometer and temperature to test.

Set up the 9600 Plus calibration tester

Place the tester on a level surface away from sunlight, drafts, and other sources of heat or cold.

The tester takes approximately 20 minutes to heat to the lowest set point.

To expedite testing, Welch Allyn recommends the following practices:

Service manual Functional verification and calibration 155

• To eliminate waiting for the tester to heat to the next set point, use three testers, each set to one of three different set points.

• When using only one tester to test several thermometers at all three temperatures, test all thermometers at one set point before proceeding to the next set point.

• To eliminate waiting for the tester to cool down, start at the lowest set point.

Because the tester does not have an internal fan, it requires more time to cool down than to heat up.

Change the 9600 Plus set point

To scroll from one set point to the next, press and hold the Temperature Selection button until a beep sounds.

The new set point appears in the upper left corner of the display. The device’s current temperature appears, flashes, and continues flashing until the cavity reaches equilibrium at the new set point. The 9600 Plus beeps when the set point is reached.

Perform a SureTemp temperature probe and system test

1. Set the 9600 Plus to the desired set point and wait for the display to stop flashing.

2. Insert the temperature probe, without a probe cover, into the thermistor device port on the tester.

3. When appears on the display, touch it to switch to Direct mode.

4. Wait for up to two minutes for the temperature reading to stabilize.

5. Record the results in the temperature service record.

6. Return the temperature probe to the probe well on the device.

7. Repeat the procedure as necessary until all thermometers are tested at each temperature.

To record the results of your test, go to "Service record."

Braun ThermoScan PRO thermometer tests

This explains how to perform a functional verification on the Braun ThermoScan PRO

4000 and Braun ThermoScan PRO 6000 thermometers using the 9600 Plus Calibration

Tester.

Note

Use this procedure in place of the verification and calibration test for the

Braun PRO 4000 and Braun PRO 6000 in the Welch Allyn Service Tool version 1.0.2.0 and earlier.

CAUTION

Before the test, place thermometers and tester in the same room for approximately 30 minutes so that they adjust to the ambient temperature.

CAUTION

Set the temperature scales on the 9600 Plus to match the

Braun Thermoscan PRO's default temperature scale.

CAUTION

Set up the 9600 Plus away from sunlight, drafts, and other sources of heat or cold. Fluctuations will impact the calibration check.

CAUTION

The ambient temperature must be stable and within the range of 18.3°C (65.0°F) to 26.7°C (80.0°F).

156 Functional verification and calibration Welch Allyn Connex

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Integrated Wall System

For more information, see the

Welch Allyn 9600 Plus Calibration Tester Directions for use

.

Perform a Braun ThermoScan PRO 4000 functional verification test

Test each thermometer at the low, medium, and high set points on the tester. After placing the thermometer in calibration mode, repeat the procedure from step 4 for each thermometer and temperature to be tested.

1. Complete the following pre-check steps: a. Check the probe tip lens window with a magnifying glass for signs of displacement. Any gaps in the seam between bezel and the lens window indicate a displaced lens window. If you see a gap, the unit is damaged and must be replaced.

b. Gently wipe the probe tip with a cotton swab slightly moistened with 70 percent isopropyl or ethyl alcohol, taking care not to displace the lens window. Remove excess alcohol with a clean cotton swab, and let air dry for 5 minutes. Do not use any chemical other than alcohol to clean the probe window.

c. Verify that the thermometer is fully charged.

2. Place the thermometer in calibration mode: a. Make sure that the thermometer displays the OFF symbol.

b. Turn on the thermometer by pushing and releasing

I/O mem

.

Symbols and functions appear as the thermometer performs an automatic self check.

c. Wait for two dashes and °C or °F to appear on the display.

d. Push and hold

I/O mem

.

After approximately 3 seconds, a short beep sounds, and the OFF symbol flashes on the display. Then a long beep sounds.

e. Release the button immediately.

The display flashes and shows the CAL symbol.

The thermometer is now in calibration check mode.

3. Apply a new probe cover. Place the probe firmly into the Ear Device Port.

4. Wait approximately 3 seconds, and then press the

Start

button.

The ExacTemp light flashes.

5. Leave the thermometer in the tester until a beep sounds.

6. Remove the thermometer from the tester and read the temperature in the thermometer’s display. If the temperatures are within ±0.2 °C (±0.4 °F) of the tester’s set point, the thermometer is within calibration.

7. Record the results in the thermometer service record.

8. Press the

Start

button once to clear the previous reading.

9. Wait 1 minute, and then take another reading with the same thermometer.

Note

Repeated measurements in short sequence might cause higher readings.

Note

If using only one tester, test all available thermometers for calibration verification at the current set point before raising the set point.

Service manual Functional verification and calibration 157

10. Repeat the procedure from step 4 as necessary until all thermometers are tested at each temperature.

11. Exit CAL mode using one of the following methods:

• Press and hold the

I/O mem

button until the OFF symbol flashes.

• Wait for 4 minutes. The thermometer automatically exits CAL mode.

To record the results of your test, go to "Service record."

Perform a Braun ThermoScan PRO 6000 functional verification test

1. Complete the following pre-check steps: a. Check the probe tip lens window with a magnifying glass for signs of displacement. Any gaps in the seam between bezel and the lens window indicate a displaced lens window. If you see a gap, the unit is damaged and must be replaced.

b. Gently wipe the probe tip with a cotton swab slightly moistened with 70 percent isopropyl or ethyl alcohol taking care not to displace the lens window. Remove excess alcohol with a clean cotton swab, and let air dry for 5 minutes. Do not use any chemical other than alcohol to clean the probe window.

c. Verify that the thermometer is fully charged.

2. Place the thermometer in calibration mode: a. With the thermometer in sleep mode, press and release the

C/F

button.

b. Immediately (while all segments of the LCD are illuminated during self-test), press and hold the

C/F

button and the

Mem

button.

After 5 seconds the thermometer begins a long beep.

c. During the beep, release the

Mem

button and the

C/F

button.

The thermometer is now in Calibration check mode. (“CAL” flashes on the screen for 0.25 seconds every second.)

3. Return the thermometer to the dock or a flat surface and wait for 1 minute before taking the first temperature.

Note

Holding the thermometer could raise the temperature of the thermometer. Put the thermometer down while waiting so that the thermometer remains at ambient room temperature.

4. Apply a new probe cover.

When the probe cover is applied properly, the flashing probe cover icon disappears from the display and a short beep sounds.

5. Wait for the screen to flash three dashes (---) alternating with “CAL.”

6. Place the probe firmly into the ear device port or Braun 6000 test fixture. Firmly push the device down into the well to ensure perpendicularity and that the probe is fully seated in the device port. Visually check the thermometer and fixture to ensure proper alignment.

Note

When using the Braun 6000 test fixture, follow the instructions provided with the fixture to position the PRO

6000 in the test fixture.

158 Functional verification and calibration Welch Allyn Connex

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Note

Note

If you are not using the Braun 6000 test fixture, ensure that the device is perpendicular in the port, directly aligned with the calibration tester sensor, and not at an angle or tilted.

Once the device is firmly seated, do not apply additional pressure. Doing so may cause your hand to waver and tilt or move the device during testing.

7. Wait 5 seconds, press the thermometer measure button, and watch for the green

ExacTemp light to flash.

8. Leave the thermometer in the 9600 Plus Calibration Tester until the ExacTemp light stops flashing and you hear a beep.

9. Remove the Braun PRO 6000 thermometer from the 9600 Plus Calibration Tester and compare the temperature displayed on the tester with the temperature on the thermometer’s display.

If the temperatures are within ±0.2 ºC (±0.4 ºF), the thermometer is within calibration.

10. Replace the probe cover to reset, and wait for the thermometer screen to flash three dashes (---) alternating with “CAL.”

Note

Replace the probe cover before each reading to remove any residual heat absorbed from the 9600 Plus Calibration Tester.

11. Return the thermometer to the dock or a flat surface and wait 1 full minute before taking another reading with the same thermometer.

Note

Note

Repeated measurements in short sequence might cause higher readings.

Holding the thermometer could raise the temperature of the thermometer. Put the thermometer down while waiting so that the thermometer remains at ambient room temperature.

12. Test all available thermometers for calibration verification at the current calibration set point temperature before proceeding to the next calibration set point temperature.

13. See the 9600 Plus Calibration Tester DFU to change the set point temperature.

Note

The device will exit CAL mode after 10 minutes of inactivity or can be forced to exit by holding both

C/F

and

Mem

for 5 seconds. After exiting

Calibration Check Mode, the thermometer returns to Sleep Mode.

To record the results of your test, go to "Service record."

ECG functional test

The ECG module does not require any calibration or routine maintenance other than cleaning. This functional test should be performed to verify the ECG module is functioning properly after the Connex device case has been opened or you suspect a problem.

Test setup and required equipment

• Connex device with software version 2.30.01 or later

Service manual Functional verification and calibration 159

• A Welch Allyn Connex Devices ECG module

• 3-lead and 5-lead AHA or IEC cables

• A calibrated stopwatch

• A patient simulator meeting the following requirements:

○ Supports outputs for lead RA, lead LA, lead LL, Lead RL, and Lead V when using a 5-lead patient cable

○ Supports outputs for lead RA, lead LA, lead LL when using a 3-lead patient cable

○ Generates heart rate between 20 and 300, inclusive

○ Generates ECG amplitude between 0.5 mV and 5.0 mV, inclusive

○ Generates ECG width between 40 ms and 120 ms, inclusive

○ Generates irregular rhythms (asystole, ventricular tachycardia, ventricular fibrillation)

○ Calibrated to ISO/IEC 17025 standard

General acceptance criteria

• Heart Rate: within +/- 3 beats per minute or +/- 3%, whichever is greater

• Respiration Rate: within +/- 2 breaths per minute or +/- 2%, whichever is greater

• ECG heart rate is complete within 10 seconds plus 5 patient heartbeats after an ECG measurement is started (10 seconds plus 5 x 60/HR).

Note

A tolerance of +2 seconds will be considered to accommodate human errors while starting or stopping stopwatch during requirements verification.

• Impendence respiration is complete within 10 seconds plus 5 patient breaths after an ECG measurement is started (10 seconds plus 5 x 60/RR).

Note

A tolerance of +2 seconds will be considered to accommodate human errors while starting or stopping stopwatch during requirements verification.

• ECG supports an Asystole alarm

• ECG supports a V-Tach alarm

• ECG supports a V-Fib alarm

ECG test procedure

Inspect the ECG module and cables, and perform the connection test and the basic functional test to confirm basic functionality. Capture the test results in the ECG Test

Record worksheet and compare results to the acceptance criteria to determine if the step passes or fails.

Inspect the ECG module and cables

Before performing a functional test, inspect the module and cables.

1. Inspect the ECG module for the following: a. Broken plastic b. Cracks c. Discoloration d. Missing or damaged fasteners

160 Functional verification and calibration Welch Allyn Connex

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Integrated Wall System e. Missing or damaged labels f. Broken internal parts as evidenced by rattles g. Broken, bent, burnt, contaminated, or corroded connector pins h. Discoloration around connector pins

2. Inspect the ECG cables for the following: a. Cuts to insulation or connectors b. Cracks or discoloration of the plastic c. Missing or loose rubber or plastic d. Missing or damaged labels

Set up the test

1. Disconnect all parameter sensors from the device, if connected.

2. Connect the Connex device to AC power.

3. Restore ECG settings on the Connex device to factory defaults (see the Appendix for

ECG defaults) and restart the device.

4. Use either a 3-lead or 5-lead AHA or IEC ECG cable to connect the ECG module to the corresponding AHA or IEC connections on the simulator. Confirm that all leads are properly connected to the simulator.

5. Connect the patient cable and the USB cable to the device. Confirm that these cables are fully inserted in the module and the Connex device.

6. Power on the device.

7. Touch the

Settings

tab.

8. Touch the

Device

tab.

9. Touch the

Profiles

vertical tab.

10. Select

Continuous Monitoring

.

11. At the top of the screen, touch the

Setup

tab.

12. Touch the

ECG

vertical tab.

13. Configure the ECG settings as follows: a. Set

ECG gain

to 20mm/mv.

b. Set

Sweep speed

to 25 mm/s.

c. Enable

Filter

.

d. Disable

Patient has a pacemaker

.

e. Enable

Use ECG as an RR source when available

.

14. Touch the

Settings

tab.

15. Touch the

Advanced

tab.

16. Enter the configured Advanced setting code and touch

OK

.

17. In Advanced settings, touch the

Device

tab.

18. Set the Power line frequency to match your AC power frequency (either 50 Hz or 60

Hz).

19. In Advanced settings, touch the

Parameter

tab.

20. Touch the

ECG

vertical tab.

21. Configure the ECG settings as follows:

Service manual Functional verification and calibration 161 a. Touch the

Cable selection

and

Electrode configurations

to match your choices in step 4.

b. Enable

Impedance respiration

.

c. Enable

V-Tach, V-Fib, Asystole detection

.

d. Disable

Automatic print on ECG alarm

.

e. Set the

Default lead

to II.

f. Set the

V-Tach threshold

to 120.

22. Touch

Exit

.

Perform a connection test

The connection test enables you to verify that the ECG module is properly connected to the Connex device and the simulator by observing the LED indicator on the module. Run the test for each USB port on the Connex device.

1. Complete the setup procedure presented in "Set up the test."

2. Configure the ECG simulator as follows: a. Set

Heart rate

to 75 beats per minute.

b. Set

Respiration rate

to 15 breaths per minute.

c. Set

Base impedance

to 250 Ohms.

3. Observe the LED status on the module. The LED should be on and green.

4. On the Connex device Home tab, touch

Start

in the ECG frame.

5. Observe the LED status on the module. The LED should be flashing green.

6. Observe the Connex device for error messages and alarms.

If ECG physiological alarms occur, you can disregard them.

If technical alarms or error messages appear, the connection test fails.

Perform a basic functional test

This test verifies that the device displays an ECG waveform and that heart and respiration rates are captured within the specified time on the monitor and match the settings on the simulator within accepted tolerances. Use the ECG pages of the "Service record" in the Appendix to record test results.

1. Complete the setup procedure presented in "Set up the test."

2. Configure the ECG simulator as follows: a. Set

Heart rate

to 75 beats per minute.

b. Set

Respiration rate

to 15 breaths per minute.

c. Set

Base impedance

to 250 Ohms.

3. Start the simulation and allow the simulator to stabilize for approximately 30 seconds.

4. On the Connex device Home tab, touch

Start

in the ECG frame and start a stopwatch.

5. Observe the Connex device screen and stop the stopwatch when heart rate/pulse rate (HR/PR) and respiration rate (RR) appear.

6. Record the time in seconds, the specific readings displayed onscreen, and whether a waveform appears onscreen on the "ECG functional test record."

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7. On the Connex device Home tab, touch the waveform.

8. Touch the

Review

tab.

in the ECG frame to capture the

9. In the ECG row, touch to review the recorded waveform.

10. If the device is configured with a printer, touch

Print

to verify that the printer can print the waveform, and record the results on the "ECG functional test record."

11. Touch the

Home

tab.

12. Configure the simulator to trigger a Ventricular Tachycardia alarm.

13. Observe the Connex device screen and verify that the device displays a clear indication of the alarm condition as specified in the acceptance criteria and noted in the "ECG functional test record."

14. Configure the ECG simulator to simulate non-alarming data for a normal patient condition and reset the alarm.

15. Configure the simulator to trigger Asystole alarm.

16. Observe the Connex device screen and verify that the device displays a clear indication of the alarm condition as specified in the acceptance criteria and noted in the "ECG functional test record."

17. Configure the ECG simulator to simulate non-alarming data for a normal patient condition and reset the alarm.

18. Configure the simulator to trigger Ventricular Fibrillation alarm.

19. Observe the Connex device screen and verify that the device displays a clear indication of the alarm condition as specified in the acceptance criteria and noted in the "ECG functional test record."

20. Configure the ECG simulator to simulate non-alarming data for a normal patient condition and reset the alarm.

21. Power down the Connex device and disconnect the ECG module from the device.

163

Electrical safety testing

Welch Allyn recommends performing ground continuity and leakage current tests after all open-case repairs and dielectric strength testing

1

when replacing the power supply or primary wiring. These recommendations trace to EN/IEC 60601-1 – Medical Electrical

Equipment – Part 1: General Requirements for Basic Safety and Essential Performance or EN/IEC 62353 – Medical Electrical Equipment – Recurrent Test and Test After Repair of Medical Electrical Equipment.

Because of the variability of test equipment in the field, Welch Allyn does not include specific instructions to perform electrical safety tests. When performing electrical safety tests, refer to your test equipment manuals for detailed instructions to ensure proper test equipment setup that aligns with the appropriate standard. The following table provides connections and test limits to assist you in performing these tests.

Test Limits

Ground continuity

Leakage current

Ground continuity from EP stud (equipotential terminal)* to the Gnd pin of the

IEC power connector shall be no greater than 0.1 ohms.

Leakage current shall be less than 500 µA from EP stud* to mains (Line and

Neutral pins of the IEC power connector).

Insulation resistance Dielectric strength shall be 500 V (DC) EP stud* to IEC mains (Line and Neutral pins of the IEC power connector), and insulation resistance is measured.

* To locate the equipotential terminal, see “Controls, indicators, and connectors."

Devices with an External Power Supply

The power bricks are CB Certified and UL Listed; they meet ALL of the requirements that the Medical Device standard requires for power supplies. The manufacturer is required to perform 100% electrical safety testing on all of their power bricks prior to shipment. Welch Allyn does not perform nor recommend testing on these external power bricks because additional testing would put undue stress on the insulation system and possibly cause premature failures in the field. Open case repairs of devices with external power supplies are only dealing with DC circuitry and robust isolation circuits built into the printed circuit boards. No additional after-servicing testing is required in that instance. The patient isolation systems within the device (Temperature Probe, SpO2 sensor, CO2 sensor, ECG sensor, etc.) all have visible isolation gaps built into the printed

1

Perform this test only if there is a reason to doubt the integrity of the electrical insulation (e.g. multiple trips of a residual-current device or liquid ingress of a saline solution). If you determine this test should be performed, return the device to Welch Allyn for service.

164 Electrical safety testing Welch Allyn Connex

®

Integrated Wall System circuit board. The quality control on the PCB and the thorough type-testing performed by the testing agency (ETL) eliminates the need for further testing on the devices that are downstream from the mains isolation device.

Devices with an Internal Power Supply

The internal power supplies are CB Certified and UL Registered. These power supplies are an open frame style (no protective enclosure). Therefore, the products that contain an internal power supply require electrical safety testing. Open case repairs of devices with an internal power supply require the recommended testing because those devices contain the open frame power supply, and the testing involves the manipulation of wiring that carries 120 or 240 volts AC. Welch Allyn does not recommend HiPot / Dielectric

Withstand testing because of a potential stress on the insulation system, which could cause premature failures.

Ground stud connector

This device is equipped with a ground stud (equipotential terminal) for electrical safety testing, and to connect a potential equalization conductor. To ensure use of the proper connector for safety testing, the ground stud is recessed into the system’s housing. Do not use “alligator” style clamps or connectors. The mating electrical connector requires self assembly by crimping it to appropriate connecting leads.

The mating connector (Type POAG-KBT6DIN, order number 15.0010) consists of the right-angled socket and insulator, as shown in the next figure. You can purchase the mating connector and the crimping pliers from the manufacturer, Multi-Contact: http://www.multi-contact.com

.

1 2

Item Description

1

2

Type

The mating electrical connector, a right-angled socket made of nickelplated brass with Multilam™ made of gold-plated, hard-drawn copper alloy.

POAG-WB6DIN

Insulator T-POAG6

Crimping pliers with mandrel crimp for 4 mm² and 6mm² flexible conductors.

POAG-PZ-N

Order no.

01.0404

15.5004-24

14.5009

165

Options, upgrades, and licenses

Welch Allyn supports option, software, and license upgrades for all models.

Option upgrades for devices still under warranty that require any installation inside the device must be performed by a Welch Allyn service center unless you participate in the

Partners in Care Biomed Partnership Program. If you want to install internal options, we recommend you attend either the classroom or online technical training course for the device. The training is required to be eligible to receive the Welch Allyn Service Tool Gold licensed edition. The Gold licensed edition is required to verify that the device is functioning correctly after it has been serviced. Although all of the option upgrades are calibrated and tested before leaving the factory, Welch Allyn recommends performing a complete functional test whenever the device is serviced.

Software upgrades, when available, can be purchased or provided at no charge if your device is covered by a Welch Allyn Service Agreement. The upgrades can be installed by either a Welch Allyn service center or by using the service tool, Standard unlicensed edition or Gold licensed edition.

If you choose to install software upgrades on your own, you will receive the software through the internet. When ordering software, provide the serial number of the device you want to install the software on.

Licenses are available for purchase to turn on additional software features or communication options. If you want to install licenses, you will need the service tool,

Standard unlicensed edition or Gold licensed edition, and an internet connection. If you purchase a license, you will receive a code to enter in the service tool running on a PC connected to the internet that will contact a server and download the license file. The service tool connects with the device to install the license to turn on the advanced feature. A more detailed description of the license process can be found in the service tool help files.

Note

When a license authorization code is used to activate the license, the authorization code is tied to the device’s serial number. Save the license authorization code with the serial number for future use. If the main board is replaced, you will need the authorization code to reactivate the license files.

166 Options, upgrades, and licenses Welch Allyn Connex

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Available options, upgrades, and licenses

The following options, upgrades, and licenses can be added to each model’s base configuration.

CAUTION

Before installing any option, disconnect the patient from the wall system and power down the device.

Options

Model

Masimo

Nellcor

SureTemp Plus

Braun ThermoScan PRO 4000

1, 2

Braun ThermoScan PRO 6000

3

Masimo with SpHb enabled

4, 5

ECG

6, 7, 8

Radio

1

Upgrades no longer available. Service replacement only.

2

Requires host software version 1.50.01 or higher.

3

Requires host software version 2.30.00 or higher.

4

Requires host software version 1.70.03 or higher.

5

Requires applicable UI license.

6

Requires the Continuous Monitoring profile license.

7

Requires LTA license for arrhythmia analysis.

8

Requires host software version 2.30.01 or higher.

8400

X

8500

X

Standard with this model.

Available hardware/software upgrade for this model.

Licensed features

Model

Vitals communication

8400 8500

Service manual Options, upgrades, and licenses 167

Model

Barcode scanner

Weight scale

1

Total hemoglobin (Masimo SpHb)

2

ECG LTA

3

Profiles

Spot Check

Office

4

Triage

5

Intervals Monitoring

6

Continuous Monitoring

7

1

Requires host software version 1.70.00 or higher.

2

Requires host software version 1.70.03 or higher.

3

Requires host software version 2.30.01 or higher.

4

Requires host software version 1.71.00 or 2.30.00 or higher.

5

Triage is not available in host software 2.30.00 and higher.

6

In host software versions 1.X, this profile was called Monitor.

7

Requires host software version 2.20.00 or higher.

8400

X

8500

X

Standard with this model.

Available hardware/software upgrade for this model.

Check the Connex device software version

Verify that the firmware version supports an option using either method A or method B.

Check the firmware version on the device

1. If the device is not running, power it on.

2. Touch the

Settings

tab.

3. Touch the

Advanced

tab.

4. In the right pane, check the number under Software version to identify the version currently running on your device.

Check the firmware version using the Service Tool

1. Connect the Connex device to a PC running the Service Tool with a type A to type B mini USB cable.

168 Options, upgrades, and licenses Welch Allyn Connex

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2. Launch the Welch Allyn Service Tool.

3. In the startup screen, click

Service

.

4. Either log in as ADMIN with no password or use any account you previously created.

5. Select the model name of your device (CVSM or CIWS) from the Device list tab.

The Device Information tab opens.

6. Locate the host controller in the Device Name column and follow the row across to the Available firmware column to identify the version currently running on your device.

Install options

Install internal options

All internal option installations entail opening the device case and performing some disassembly. Whenever you repair, replace, or install internal components, Welch Allyn requires that the device undergo a full functional test and electrical safety test before placing the device back in service.

Before installing an internal option, read the information about removing the option in

“Disassembly and repair.” After familiarizing yourself with the process, follow the instructions in the disassembly section to remove currently installed components or empty housings as needed, and then proceed to install new options.

Install external options

External options include ECG, Braun thermometers, barcode readers, and scales.

Perform any required software upgrades and install any required licenses before connecting the option to the Connex device. Follow any instructions included with the option to set up or mount the option before connecting it to the Connex device.

1. Power down the Connex IWS and disconnect the AC power cord.

2. Loosen the captive retention screws on the communications cover housing and remove the cover from the wall system.

3. Loosen the two screws on the cable retention clamp and remove it.

4. Plug the USB connector of the module external option (e.g., barcode reader) into any available USB port. Check that the connector is fully inserted.

5. Thread the cable through the cable guide.

6. Replace the cable retention clamp and tighten the two screws.

7. Re-attach the communications cover and tighten the two retention screws.

8. Connect the AC power cord to the device.

9. Power up the wall system.

10. After the device boots up, follow the instructions in the device's and/or option's directions for use to configure the option as necessary.

Upgrade software

If the current software version does not meet the minimum required version, update the

Connex IWS firmware to the latest version that supports the option. To update the

Service manual Options, upgrades, and licenses 169 software, you will need the latest version of the Welch Allyn Service Tool, available from welchallyn.com

. If necessary, follow the instructions in the Welch Allyn Service Tool

Installation and Configuration Guide, available from welchallyn.com

. Contact Welch Allyn technical support to obtain the latest version of Connex IWS software. Follow these steps to update the Connex IWS firmware using the Welch Allyn Service Tool:

1. Connect the Connex IWS to a PC running the Service Tool with a type A to type B mini USB cable.

2. Connect the AC power plug to an AC power outlet and power on the Connex IWS.

3. Launch the Welch Allyn Service Tool.

4. If the startup screen with the “Add new features” and “Service” button appears, click

Service

.

5. Either log in as ADMIN with no password or use any account previously created.

6. Select

CIWS

from the Device list tab.

The Device Information tab opens.

7. Click the

Upgrade

tab.

8. Locate the host controller in the device column and follow the row across to the

Available firmware column.

• If a version number is present, click to select it.

• If no upgrade available is shown, click

Check for upgrades

.

• If no upgrade appears, contact Welch Allyn Technical Support.

9. Click

View release notes

for information about this version.

10. Click

Upgrade all

.

11. In the dialog that appears asking if you want to continue, click

Yes

to continue or

No

to return to the Upgrade tab.

Note

Once the upgrade starts, do not shut down or disconnect the device until the process is complete. The device will reboot and begin the upgrade process. The host controller software and any subsystem firmware will be upgraded with available firmware versions. The device will reboot multiple times depending on the number of subsystems requiring an update. For each subsystem, the progress spinner will progress from 0 to 100 percent.

When the upgrade is complete, the device returns to the Upgrade tab, and the

Available firmware column will show NA for the host controller.

If the Chinese fonts and IME tables appear in the list of items to add to the device, you must install them to print charts as follows:

1. Complete steps 1 through 6 at the beginning of this topic.

2. Select Chinese fonts and IME tables from the list of items to add to the device.

3. Click

Add selected

.

4. In the dialog that asks if you want to continue, click

Yes

to continue or

No

to return to the Upgrade tab.

When the installation in complete, the device returns to the Upgrade tab.

170 Options, upgrades, and licenses Welch Allyn Connex

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Activate licenses

Licensed features are enabled using the licensing application in the Welch Allyn Service

Tool. When you purchase a licensed upgrade for the Connex device, you receive an authorization code from Welch Allyn Customer Service. This code enables you to activate the new features through Service Tool's Install License feature.

1. Connect the Connex IWS to a PC running the Service Tool with a type A to type B mini USB cable.

2. Launch the Welch Allyn Service Tool.

3. If the startup screen with the “Add new features” and “Service” buttons appears, click

Add new features

.

4. Either log in as ADMIN with no password or use any account previously created.

5. Click on the

Administration

menu and select

Install license

.

6. Select

Medical device license

for the type of license you want to activate.

7. Enter your authorization code.

8. Select the device from the Device list.

Note

The device must either be connected or on the maintained device list to appear.

9. Click

Activate

.

Note

If the license you are activating is for a connected device, the license is installed immediately. If the license is for an offline

(maintained) device, the license will be installed the next time the device is connected to the Service Tool. A new license activation action will be added to your work list.

10. After installing the license, power down and restart the Connex device to load the license and activate the new licensed features.

Note

If a forced shutdown occurred immediately after installing the license, you might need to reinstall the license.

11. If you observe any issues or errors in the activation process, confirm that you entered the correct authorization code, check your Internet connection, and repeat the installation process. Confirm with your systems administrator that ports 5093 and 5094 on your firewall are open for TCP/IP communications. If you cannot resolve the issue, contact Welch Allyn Technical Support.

Note

Masimo SpHb requires an additional license that is installed as a software upgrade using the Service Tool. Additional instructions for installing the Masimo licenses are included with the Masimo parameter upgrade kits.

Host firmware requirements

This section lists the host firmware requirements for each parameter. If your device does not meet the minimum requirements, you can upgrade the host firmware with the

Welch Allyn Service Tool.

• SpHb requirement: host firmware version 1.70.03 or later

• Braun ThermoScan PRO 6000 requirement: host firmware version 2.30.00 or later

Service manual Options, upgrades, and licenses 171

• ECG requirement: host firmware version 2.30.01 or later

Masimo parameter upgrades

A Hemoglobin parameter upgrade is available for models 8400 and 8500 with Masimo

SpO2.

Upgrading devices configured without Masimo SpO2

You can upgrade devices configured without Masimo SpO2 by adding Masimo SpO2 or by replacing the Nellcor SpO2 module with a Masimo SpO2 module.

If you participate in a Partners in Care Biomed program, you can purchase an upgrade kit and complete the installation on your own. Upgrade kits contain a Masimo module with the desired parameters, a user interface license authorization code, and instructions for installing and licensing the upgrade. To complete the installation, you also need the tools listed in the “Disassembly and repair” section of this manual.

If you do not participate in a Partners in Care Biomed program, contact Welch Allyn to order a Masimo hardware upgrade and arrange for Welch Allyn to perform the upgrade.

Customers performing hardware upgrades without participating in a Partners in Care

Biomed program void the device warranty.

Upgrading devices configured with Masimo SpO2

If your device has a Masimo SpO2 module, you can enable new parameters by upgrading the module firmware. All customers can perform firmware upgrades on their own by using the service tool. To upgrade your module, purchase a firmware upgrade kit and follow the instructions provided with the kit.

Each parameter firmware upgrade is custom-built for a specific device and cannot be transferred to another device.

Configure options

When connected and powered on, the monitor recognizes all options. When the option successfully passes the POST, all software controls in the monitor’s user interface are activated, enabling you to configure option settings.

Option parameters are initially set at factory default values. To change these settings go to Advanced Settings. The configuration screens for SpO2, SpHb, Pulse rate, NIBP,

Temperature, and Manual parameters are on the Parameters tab. The configuration screens for the radio are on the Network tab. For more information about the Advanced

Settings menu, see the device’s directions for use.

172 Options, upgrades, and licenses Welch Allyn Connex

®

Integrated Wall System

Field replaceable units

This listing includes only field-replaceable service parts. Product accessories—including

3.5V instrument heads and other consumable items—are listed separately in the accessories list in the device’s directions for use, which is available on the user documentation CD or www.welchallyn.com

.

Exploded views introduce each section, followed by a list of service kits associated with that part of the device. Some sections include multiple exploded views based on separate configurations of parts that comply with IEC 60601 2nd and/or 3rd edition standards. Headings introduce exploded views when multiple versions exist, and each kit includes bracketed references (either "[2nd edition only]," "[3rd edition only]," or "[all]") to indicate which kits apply to which devices based on IEC 60601 compliance.

If your device is IEC 3rd edition-compliant, use only service kits with the "3rd Ed" suffix.

Front housing, handle module assembly, and modules front exterior exploded view

173

174 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Service Kits for both 2nd-edition and 3rd-edition devices

Serv Kit, Side housing (material no. 104584) [all]

No.

4

30

Item

Side housing

Blue insert

Modules

Serv Kit, Braun PRO 6000 assembly (material no. 107010) [all]

No.

Item

9

43

Braun housing

Braun 6000 dock

Not shown Bushing, side access PW, Braun

50 Screw, M4 pan head , PHD, shoulder

Not shown E-ring

Serv Kit, Braun PRO 6000 thermometer (material no. 105948) [all]

Item

Braun ThermoScan PRO 6000 thermometer

Braun ThermoScan PRO 6000 rechargeable battery

Braun PRO 4000 assembly (material no. 104583) [all]

No.

Item

9

43

Braun housing

Braun 4000 dock

Not shown Bushing, side access PW, Braun

50 Screw, M4 pan head , PHD, shoulder

Not shown E-ring

Qty

1 ea

1 ea

Qty

1 ea

1 ea

Qty

1 ea

1 ea

2 ea

2 ea

2 ea

Qty

1 ea

1 ea

2 ea

2 ea

2 ea

Service manual Field replaceable units 175

Braun PRO 6000 rechargeable battery (material no. 104894) [all]

Item

Braun ThermoScan PRO 6000 rechargeable battery

Qty

1 ea

Braun PRO 4000 rechargeable battery (material no. 53020-0000) [all]

Item

Braun ThermoScan PRO 6000 rechargeable battery

Qty

1 ea

Serv Kit, Module assembly, MODPG NIBP (material no. 104248) [all]

No.

41

Item

Module assembly, MODPG

Qty

1 ea

Serv Kit, Module assembly, SpO2, Nellcor (material no. 104282) [all]

No.

42

Item

Module assembly, SpO2, Nellcor

Qty

1 ea

Serv Kit, Module assembly, SpO2, Masimo MX (material no. 104290) [all]

No.

42

Item

Module assembly, SpO2, Masimo MX

Qty

1 ea

Serv Kit, SureTemp module, CIWS (material no. 104292) [all]

No.

5

Item

Module assembly, SureTemp

Qty

1 ea

Upgd Kit, PW, Masimo MX with SpO2, SpHb Mod (material no. 104591)

[all]

Item

Module assembly SpO2-SpHb Masimo

Qty

1 ea

176 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Item

Authorization code for SpHb UI license

Installation instructions

Masimo SpHb SW upgrade - sold by WA (material no. 104361) [all]

Item

Masimo software license

Welch Allyn SpHb user interface license

Authorization code for online upgrade

Serv Kit, PW, Masimo MX SpO2, SpHb repair (replacement only)

(material no. 104573) [all]

Item

Module assembly SpO2-SpHb Masimo

* This service kit can be used only to replace an existing SpHb-enabled module.

Individual parts

No.

Material no.

Item

20

23

17

18

[all]

8

10

104250

103564

Not shown 103563

16 104268

104271

104273

104276

104286

Not shown 104894

Not shown 53020-0000

CIWS handle module assembly

Platform module, blank

Platform USB cable mini B RT-type A RT

Module cover

Communications cover housing

Cubby door

Side mounting bracket

Power button

Rechargeable battery for Braun PRO 6000

Rechargeable battery for Braun PRO 4000

Qty

1 ea

Qty

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

Qty

1 ea

1 ea

1 ea

Qty

1 ea

1 ea

Service manual Field replaceable units 177

No.

Material no.

Item

30 104274

[2nd edition only

]

Not shown 104289

Blue insert

Ethernet cable, 18 in

Qty

1 ea

Front housing, handle housing, and chassis - rear interior exploded view

1 ea

Serv Kit, PLFM, LCD display (material no. 106546) [2nd edition only]

No.

Item

31

1a

LCD BEZEL, NVD 9.0"

LCD with touchscreen

Not shown Foam pad, top and bottom (attached)

Not shown LCD harness

Qty

1 ea

1 ea

2 ea

1 ea

178 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Serv Kit, PLFM, MCE PCBA (material no. 103352) [2nd edition only]

Note

When replacing the main board, all licenses are lost. If you did not retain authorization codes to restore those licenses, you must order replacement licenses.

No.

Item

2a Main board (P3)

Qty

1 ea

Serv Kit, PLFM, 9" LCD display 3rd Ed (material no. 106827) [3rd edition only]

No.

Item

31

1b

LCD BEZEL, NVD 9.0"

LCD with touchscreen 3rd Ed

Not shown Foam pad, top and bottom (attached)

Not shown LCD harness

Qty

1 ea

1 ea

2 ea

1 ea

Serv Kit, CVSM/CIWS Mainboard MCE 3rd Ed (material no. 106839) [3rd edition only]

Note

When the main board is replaced, all licenses are lost. If you did not retain authorization codes to restore those licenses, you must order replacement licenses.

No.

Item

2b Main board

Qty

1 ea

Service Kits for both 2nd-edition and 3rd-edition devices

Serv Kit, Connex Integrated Wall System, main housing assembly

(material no. 104244) [all]

No.

3

23

30

Item

Main housing

Power button and flex cable

Blue insert

Qty

1 ea

1 ea

1 ea

Service manual Field replaceable units 179

Serv Kit, Side housing (material no. 104584) [all]

No.

4

30

Item

Side housing

Blue insert

Serv Kit, VSM6000, LED light bar (material no. 103353) [all]

No.

Item

12 Light bar

21 Light-bar board

Not shown Light-bar harness

Individual parts [see subheadings in table to select parts based on IEC compliance]

Qty No.

Material no.

Item

[all]

6

7

103552

103554

8 104250

Not shown 103578

10 103564

Not shown 103563

11 104252

Not shown 104255

13

14

Not shown 104256

12 104260

15

104264

104265

104267

Platform fan assembly

Platform speaker assembly

CIWS handle module assembly

Platform LCD harness

Platform module, blank

Platform USB cable mini B RT-type A RT

Module well assembly

Main wire harness

Main power harness

Light bar

Power panel

Battery housing

Module track

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

Qty

1 ea

1 ea

1 ea

Qty

1 ea

1 ea

180 Field replaceable units

No.

33

34

30

31

22

23

19

21

Not shown 103576

[2nd edition only]

31 103565

Not shown 104289

Not shown 104254

[3rd edition only

]

Not shown 106826

Not shown 106831

Not shown 106832

104275

103550

104285

104286

104274

106462

104269

104251

Material no.

Item

Light-bar cover

Light-bar board

Battery connector

Power button and flex cable

Blue insert

LCD bezel, 9.0 in

Chassis

Cable, USB client

Pro Gaff tape

LCD bezel, 8.9 in

Ethernet cable, 18 in

Wire harness, AC to power supply

AC power harness 3rd Ed

USB cable separator 3rd Ed

Ethernet cable 20 in 3rd Ed

Welch Allyn Connex

®

Integrated Wall System

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

Qty

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

1 ea

Service manual

Chassis

Field replaceable units 181

Serv Kit, Wire Harness, AC to Power supply (material no. 104254) [2nd edition only]

No.

Item Qty

Not shown

Wire harness, AC to power supply 1 ea

Serv Kit, Power supply, 60W (material no. 104283) [2nd edition only]

No.

Item

54a Power supply, 60W

Qty

1 ea

Serv Kit, AC Power Harness, 3rd Ed (material no. 106826) [3rd edition only]

No.

Item Qty

Not shown

AC Power Harness, 3rd Ed 1 ea

Serv Kit, Power supply, 60W, 3rd Ed (material no. 106829) [3rd edition only]

No.

Item Qty

54b Power supply, 60W, 3rd Ed 1 ea

182 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Service Kits for both 2nd-edition and 3rd-edition devices

Serv Kit, Chassis (material no. 104269) [all]

No.

Item

33 Chassis

Serv Kit, PLFM, Standard comms PCBA (material no. 103355) [all]

No.

Item

55 Communications board

Serv Kit, CIWS, Radio (material no. 107011) [all]

No.

Item

57

56

51

Antenna board

Radio board, 802.11a/b/g

Screw, M3 X 0.5, Phillips pan head

Not shown Antenna mounting foam tape

Not shown Antenna cable

Not shown Radio label

Serv Kit, CIWS, Antenna (material no. 107012) [all]

No.

Item

57 Antenna board

Not shown

Antenna mounting foam tape

Not shown

Antenna cable

Serv Kit, Cable, USB client (material no. 104251) [all]

No.

Item

34 Cable, USB client

Qty

1 ea

Qty

1 ea

Qty

1 ea

Qty

1 ea

1 ea

1 ea

1 ea

1 ea

4 ea

Qty

1 ea

1 ea

1 ea

Service manual Field replaceable units 183

Individual parts [see subheadings in table to select parts based on IEC compliance]

No.

Material no.

Item

[all]

58

59

104280

104288

Not shown 4500-925

Ground lug

Connector, IEC, 1.5 mm panel

Cable, USB 2.0, 5-pin, mini-B, Gold, 6 ft.

Handles

Qty

1 ea

1 ea

1 ea

Serv Kit, Handle assembly (material no. 104299) [all]

No.

Item

35 Handle assembly

Serv Kit, Platform 767 controller PCBA (material no. 104247) [all]

No.

Item

36 PCBA: Platform 767 controller, pattern E

Qty

1 ea

Qty

1 ea

Serv Kit, Handle, cradle, and opticals assembly (material no. 104253) [all]

No.

Item

37 Handle, cradle, and opticals assembly, cool blue

Qty

1 ea

184 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Serv Kit, Housing, front handle (material no. 104262) [all]

No.

Item

38 Housing, front handle

Serv Kit, Housing, rear handle (material no. 104263) [all]

No.

Item

39 Housing, rear handle

Serv Kit, Handle holder (material no. 104278) [all]

No.

Item

Not shown

Handle holder

Serv Kit, IR connector and wire assembly (material no. 104281) [all]

No.

Item

40 IR connector and wire assembly

Qty

1 ea

Qty

1 ea

Qty

1 ea

Panoptic assembly without blue filter (material no. 11810) [all]

No.

Item

Not shown

Panoptic assembly without blue filter

Qty

1 ea

3.5V coaxial ophthalmoscope assembly (material no. 11720) [all]

No.

Item

Not shown

3.5V coaxial opthalmoscope assembly

Qty

1 ea

Diagnostic otoscope with throat illuminator assembly (material no. 23820) [all]

No.

Item Qty

Not shown

Diagnostic otoscope with throat illuminator assembly 1 ea

Qty

1 ea

Service manual Field replaceable units 185

Dispenser, Small ear speculum, Connex IWS, Full (material no. 52400-PF) [all]

No.

Item Qty

45 Ear speculum dispenser, small 1 ea

Miscellaneous parts

Serv Kit, CIWS screw and hardware (material no. 104241)

No.

Item

[all]

Not shown Cable tie mount

Not shown Cable tie, 6 inch

51

52

Not shown Ferrite, Snap, 0.788 OD, 0.26 ID, 1.55 LG, black

50 Screw, M4 x 10 Pan head with nyloc (Large Phillips screw)

Screw, M3 x 0.5, Pan Phillips (Small Phillips screw)

Screw, Plastite #4-20 x .500 Pan head (Torx screw)

Not shown Nut hex

Not shown Shoulder screw M4 PHD

Not shown Standoff, harness

Not shown Washer lock serrated

Not shown Washer, flat

Not shown Washer, M3

44 Strain relief, comms, PW

Not shown Tape, mirrors, 0.94 x 0.94

60

61

53 CCH44-S10 P-clamp, 0.437

Not shown Clamp, cable 3/16 x 3/8 wide 3/4 long

Not shown Foam strip, 0.75 Square

[3rd edition only parts]

Faston tab, dual spade, 0.187

External lockwasher #8

Qty

2 ea

2 ea

1 ea

1 ea

4 ea

4 ea

6 ea

1 ea

4 ea

4 ea

4 ea

10 ea

10 ea

1 ea

5 ea

6 ea

6 ea

1 ea

10 ea

186 Field replaceable units Welch Allyn Connex

®

Integrated Wall System

Licenses

Material no.

103371

103372

105294

Item

Bar code reader

Spot profile

Office profile

Notes

Requires host software version 1.71.00 or 2.30.00 or higher.

105363 Continuous Monitoring profile

105364 Standard license CIWS 8400/8500

104197 Weight scale

Partners in Care service and support agreements

Material no.

Item

S1-CIWS

S2-CIWS

Connex Integrated Wall System,

Comprehensive partnership program

1 year

Connex Integrated Wall System,

Bio-med partnership program 1 year

Material no.

Item

S1-CIWS-2

S2-CIWS-2

Connex Integrated Wall System,

Comprehensive, Comprehensive partnership program 2 years

Connex Integrated Wall System,

Bio-med partnership program 2 years

S4-CIWS

(International only)

Connex Integrated Wall System, extended warranty, 1 year

S4-CIWS-2

(International only)

Connex Integrated Wall System, extended warranty, 2 years

Service and repair training

Note

Required to be eligible to receive the service tool, Gold edition.

Material no.

CIWSREP-TRN

CIWSREPW-TRN

Item

Connex Integrated Wall System repair training

Connex Integrated Wall System repair web training

187

Appendices

Decontamination and cleaning requirements

As a safety precaution, the system must undergo decontamination before being returned to Welch Allyn for service, repair, inspection, or disposal.

Note

Contaminated items must not be returned without prior, written agreement.

Note

Decontaminate the system according to your facility’s procedures and local regulations.

Cleaning is an essential prerequisite for effective disinfection or decontamination.

Note

The following guidelines apply to the system only. For cables, sensors, cuffs, and other peripheral items, follow the cleaning instructions in the directions for use that accompany these accessories.

WARNING

Electric shock hazard. Before cleaning the system, disconnect the AC power cord from the power outlet and the system.

WARNING

Electric shock hazard. DO NOT autoclave the system or accessories. The system and the accessories are not heat-resistant.

WARNING

Liquids can damage electronics inside the system. Take care to prevent water or other liquids from spilling on the system.

If liquids are spilled on the system:

1. Power down the system.

2. Disconnect the power plug.

3. Remove the battery pack from the system.

4. Dry off excess liquid from the system.

Note

If liquids possibly entered the system, remove the system from use until it has been properly dried, inspected, and tested by qualified service personnel.

5. Reinstall the battery pack.

6. Power on the system and verify that the system functions normally before using it.

CAUTION

DO NOT use steam, heat, or gas sterilization on the system.

188 Appendices Welch Allyn Connex

®

Integrated Wall System

CAUTION

DO NOT use harsh solvents such as acetone on the system.

The following agents are compatible with the system. Follow the cleaning agent manufacturer’s guidelines:

CaviWipes

Sani-Cloth

®

Plus

• 70 percent isopropyl alcohol

• 10 percent chlorine bleach solution

Note

Disinfect according to your facility’s protocols and standards or local regulations.

Configuration options

The wall system is available in multiple configurations. Use the following to determine available configurations:

[Model number][SpO2][Thermistor temp][Cord management][IR temp][Head pair]-

[Power cord]

Note

Note

For approved accessories, see the accessories list in the device’s directions for use.

If options were added to the device after production, the product label will not match the current configuration.

Position

[Model number]

Description

Two numbers that indicate the model:

84

: The 8400 model. Does not include a radio.

85

: The 8500 model. Includes an internal 802.11 a/b/g radio.

[SpO2]

[Thermistor temp]

One character that indicates the oximeter type:

H

: Includes Masimo with Hemoglobin

M

: Includes Masimo.

N

: Includes Nellcor.

X

: Does not include oximetry (8400 model only).

One character that indicates whether a SureTemp Plus thermometer is included:

T

: Includes SureTemp Plus thermometer.

X

: Does not include SureTemp Plus thermometer.

[Cord management]

One character that indicates the storage type:

V

: SCS

[IR temp]

One character that indicates whether a Braun ThermoScan PRO thermometer and docking station are included:

E

: Includes a Braun ThermoScan PRO and docking station.

X

: Does not include a Braun ThermoScan PRO and docking station.

Service manual Appendices 189

Position

[Head pair]

[Power cord]

Description

One character that indicates whether 3.5V instrument heads are included:

C

: Includes MacroView (23820) and Coaxial Ophthalmoscope (11720) heads.

P

: Includes MacroView (23820) and PanOptic (11810) heads.

X

: Does not include instrument heads.

The suffix, characters or numbers that follow the hyphen, indicates the power cord packaged with the device. Country codes include the following:

6

7

Z

2

4

Suffix

B

Description

North America

Europe

United Kingdom

Australia/New Zealand

South Africa

Brazil

190 Appendices

Factory defaults

General alarm

Settings

General

Advanced

General

Allow user to disable alarms

Nurse call threshold

Audio

Display alarm limits

Alarm audio on

Alarm audio off

Volume

Patient rest mode on

Allow user to turn off general audio

Minimum alarm volume

Audio pause time

Allow user to enable patient rest mode

Allow host to enable patient rest mode

Delays

SpO2 alarm condition delay

SpO2 pulse rate alarm condition delay

Respiration alarm condition delay

No breath detected alarm delay

Welch Allyn Connex

®

Integrated Wall System

Default value

Enabled

Enabled

Disabled

Medium

Off

SpHb alarm condition delay

Enabled

Medium

Enabled

Low

2 minutes

Enabled

Enabled

10 seconds

3 seconds

10 seconds

Adult: 30 seconds

Pediatric: 20 seconds

Neonate: 15 seconds

10 seconds

Service manual

NIBP

Settings

Alarms

Systolic and diastolic alarm limits on/off control

Systolic: Upper limit

Systolic: Lower limit

Diastolic: Upper limit

Diastolic: Lower limit

MAP alarm limits on/off control

MAP: Upper limit

MAP: Lower limit

Intervals

Interval

Minutes

Automatic print on interval

Advanced

Display MAP

SYS/DIA as primary

MAP as primary

Tube type

Unit of measure

Appendices 191

Automatic

15 minutes

Disabled

Enabled

Enabled

Disabled

2 tubes mmHg

Default value

On

Adult: 220 mmHg (29.3 kPa)

Pediatric: 145 mmHg (19.3 kPa)

Neonate: 100 mmHg (13.3 kPa)

Adult: 75 mmHg (10.0 kPa)

Pediatric: 75 mmHg (10.0 kPa)

Neonate: 50 mmHg (6.7 kPa)

Adult: 110 mmHg (14.7 kPa)

Pediatric: 100 mmHg (13.3 kPa)

Neonate: 70 mmHg (9.3 kPa)

Adult: 35 mmHg (4.7 kPa)

Pediatric: 35 mmHg (4.7 kPa)

Neonate: 30 mmHg (4.0 kPa)

Off

Adult: 120 mmHg (16 kPa)

Pediatric: 110 mmHg (14.7 kPa)

Neonate: 80 mmHg (10.7 kPa)

Adult: 50 mmHg (6. 7 kPa)

Pediatric: 50 mmHg (6.7 kPa)

Neonate: 35 mmHg (4.7 kPa)

192 Appendices

Settings

Algorithm default

Cuff inflation target (step algorithm)

Adult

Pediatric

Neonate

Allow interval program changes

Programs (NIBP Averaging)

SpO2

Settings

Alarms

Alarm limits on/off control

Upper limit

Lower limit

SatSeconds™ (Nellcor only)

Advanced

Default view

Default response

Sweep speed default

Allow low perfusion alarm

Welch Allyn Connex

®

Integrated Wall System

Default value

SureBP

160 mmHg (21.3 kPa)

140 mmHg (18.7 kPa)

90 mmHg (12.0 kPa)

Enabled

Programs 1 to 6 (default settings are empty)

Default value

On

Adult: 100%

Pediatric: 100%

Neonate: 100%

Adult: 90%

Pediatric: 90%

Neonate: 90%

0

% SpO2

Normal

25 mm/s

Enabled

Service manual

SpHb

Settings

Alarms

Alarm limits on/off control

Upper limit

Lower limit

Setup

Trend period

Advanced

Default view

Reference

Unit of measure

Default averaging

Temperature

Settings

Alarms

Alarm limits on/off control

Upper limit

Lower limit

Advanced

Unit of measure

Display temperature conversion

Default SureTemp Plus site

Braun 6000

Anti-theft return time out

Mode

Appendices 193

Default value

On

17.0 g/dL (11.0 mmol/L)

7.0 g/dL (4.0 mmol/L)

1 hr

Numeric

Venous g/dL

Medium

Default value

Off

101 °F (38.3 °C)

94 °F (34.4 °C)

°F (Fahrenheit)

Enabled

Oral

Disabled

Technique compensation

194 Appendices

Settings

Enable pulse timer

Enable Celsius only selection

Pulse rate

Settings

Alarms

Alarm limits on/off control

Upper limit

Lower limit

Setup

Tone volume

Advanced

Display source

RR

Settings

Alarms

Alarm limits on/off control

Upper limit (etCO2)

Upper limit (ECG)

Lower limit (etCO2)

Lower limit (ECG)

Welch Allyn Connex

®

Integrated Wall System

Default value

Enabled

Disabled

Default value

On

Adult: 120 bpm

Pediatric: 150 bpm

Neonate: 200 bpm

Adult: 50 bpm

Pediatric: 50 bpm

Neonate: 100 bpm

Off

Enabled

Default value

On

Adult: 30 breaths per minute

Pediatric: 40 breaths per minute

Neonate: 65 breaths per minute

Adult: 30 breaths per minute

Pediatric: 40 breaths per minute

Adult: 5 breaths per minute

Pediatric: 10 breaths per minute

Neonate: 25 breaths per minute

Adult: 5 breaths per minute

Service manual

Settings

High alarm delay for CO2

Patient motion respiration alarm delay

No breath alarm

RR

Settings

Alarms

Alarm limits on/off control

No breath alarm

ECG

Settings

Alarms

Alarm limits on/off control

Upper limit

Lower limit

Setup

ECG gain

Sweep speed

Filter

Pacemaker detection

Use ECG as an RR source when available

Advanced

Enable cardiac high priority tone

Appendices 195

Default value

Pediatric: 10 breaths per minute

10 seconds

180 seconds

Adult: 30 seconds

Pediatric: 20 seconds

Neo: 15 seconds

Default value

On

Adult: 30 seconds

Pediatric: 20 seconds

Neo: 15 seconds

Default value

On

120

50

10mm/mV

25 mm/s

Enabled

Disabled

Disabled

Enabled

196 Appendices Welch Allyn Connex

®

Integrated Wall System

Settings

Cable selection

Electrode configuration

Allow impedance respiration

V-Tach, V-Fib, Asystole detection enable

Automatic print on ECG alarm

Default lead

V-Tach threshold

Default value

3 lead

AHA

Enabled

Enabled

Enabled

II

120

Patient manual parameters

Note

In software versions 2.30.00 and higher, the manual parameter fields are blank (no defaults set).

Default value Settings

Height

Weight

Pain

Respiration

Temperature

Advanced

1

Display height

Display weight

Display pain

Display respiration

Display temperature

2

Display BMI

Height units

Weight units

Enable manual override NIBP Default value

Enabled

Enabled

Enabled

Enabled

Disabled

Disabled in lb

Enabled

Service manual

Settings

Enable manual override Pulse rate

Enable manual override Temperature Default

Enable manual override RR Default

Enable manual override SpO2 Default

1

You can enable only four manual parameters.

2

If a temperature module is available, manual temperature selection is not available.

Default value

Enabled

Enabled

Enabled

Enabled

Device

Settings

Temporarily pause patient monitoring

1

Display brightness

Allow display lock timeout

Profiles

Advanced

Language

Date/time

Date format

Time zone

Automatically adjust clock for daylight saving time, reported by host

Allow users to change date and time

Display date and time

Display

Display lock

Display power saver

Device power down

Device

Enable save as default

Default value

10 minutes

6

Enabled

Spot Check

English mm/dd/yyyy

UTC

Disabled

Enabled

Enabled

Never

2 minutes

20 minutes

Enabled

Appendices 197

198 Appendices

Settings

Standby Mode timeout

Allow profile change

Demo

Power line frequency

Type

1

Continuous mode only

Data management

Settings

Advanced

Patient

Default patient type

Name format

Primary label

Secondary label

Require patient ID to save readings

Search by patient ID

Clear patient information on manual save

Retrieve list

Clinician

Label

Require clinician ID to save readings

Search by clinician ID

Require password

Clear clinician information on manual save

Clinical data

Automatically send on manual save

Delete readings after successful send

Welch Allyn Connex

®

Integrated Wall System

Default value

10 minutes

Enabled

60 Hz

Normal values

Default value

Clinician ID

Disabled

Disabled

Disabled

Disabled

Disabled

Disabled

Adult

Full name

Name

Patient ID

Disabled

Disabled

Enabled

Disabled

Service manual

Settings

Emulate Spot Vital Signs LXi

Connect to Connex CS

Network

Settings

Radio

SSID

1

Radio band

Authentication type

Authentication method

Enable radio

Enable radio network alarms

Network key

Options

Server

Connectivity

Broadcast

VM IP

NRS IP

DNS Name

DHCP

Appendices 199

Default value

Enabled

Enabled

Selections Default value

com.welchallyn

b/g

WPA2-PSK

Network key

Enabled

Disabled

1234567890ABCDEF123456

7890ABCDEF1234567890A

BCDEF1234567890ABCDEF

Port 7711

Vitals Management server

IP address

0-0-0-0

Port 281

Network rendezvous service

(NRS) IP address

0-0-0-0

Port 7711

Network rendezvous service

DNS name

WANRS

Port

DHCP vendor class identifier

Port

7711 welchallyn-nrs

7711

200 Appendices Welch Allyn Connex

®

Integrated Wall System

Settings Options Selections Default value

NRS IP addresses Those network rendezvous service (NRS) IP addresses used by your organization

1

Software version 2.0 supports up to 16 characters. Software versions 2.1 and later support up to 32 characters.

Service manual Appendices 201

Disassembly and repair reference

Screws

4

2

2

2

2

7

4

2

1

2

2

4

4

3

6

4

Quantity Location

2

4

2

1

10

Type

Comms connection cover Pan head machine

Module cover Pan head machine

Braun housing or end cap Pan head machine

Module retaining plate Pan head machine

Pan head machine Handle module assembly housing

767 controller PCBA Plastite

Main housing

Power supply

Comms PCBA

Radio board

Pan head machine

Plastite

Plastite

Pan head machine

Light bar cover

Power panel

Battery board

P-clamp, Ethernet cable

Plastite

Plastite

Plastite

Pan head machine

Main board

LCD frame

Pan head machine

Pan head machine

Module well Plastite

P-clamp, USB cable bundle Pan head machine

Module tracks

Blue insert

USB client cable

Plastite

Plastite

Plastite

Size/length Torque

M4x10

M4x10

M4x10

M4x10

M4x10

Bit type

7.5 in-lb ± 0.5 in-lb #2 Phillips

7.5 in-lb ± 0.5 in-lb #2 Phillips

7.5 in-lb ± 0.5 in-lb #2 Phillips

7.5 in-lb ± 0.5 in-lb #2 Phillips

7.5 in-lb ± 0.5 in-lb #2 Phillips

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

M4x10 7.5 in-lb ± 0.5 in-lb #2 Phillips

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

M3x8 6.0 in-lb ± 0.5 in-lb #1 Phillips

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

M3x8 6.0 in-lb ± 0.5 in-lb #1 Phillips

M3x8

M4x10

6.0 in-lb ± 0.5 in-lb

7.5 in-lb ± 0.5 in-lb

#1 Phillips

#2 Phillips

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

M4x10 7.5 in-lb ± 0.5 in-lb #2 Phillips

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

#4-20 x 0.500

7.5 in-lb ± 0.5 in-lb Torx T10

202 Appendices Welch Allyn Connex

®

Integrated Wall System

Connectors

Connector types

Disassembly and repair procedures require that you disconnect and reconnect the following connector types:

Locking (squeeze-release)

: Locking connectors use a latching mechanism to prevent accidental disconnection during assembly and use. The latch is located on one end of a tab so it may flex and lock into place when coupled with its matching connector. The tab provides a lever to release the latch. When disconnecting, squeeze to provide pressure on the tab to unlatch. Some connectors have multiple latches that require you to press multiple tabs to release.

To remove a locking connector, squeeze the release lever and remove the cable.

To connect a locking connector, push the mating pieces together until the latch locks in place.

Pressure

: Pressure connectors use friction to prevent accidental disconnects.

To remove a pressure connector, grasp each connector mating half and pull the halves apart.

CAUTION

Do not use excessive force to disconnect the connector. Excessive force may result in pulling the mounted connector off the circuit board.

To connect a pressure connector, grasp each connector mating half and insert one half into the other.

USB

: USB connectors provide communications and power connectivity between the main board and any sub-systems and external devices. USB connectors use friction to maintain the connection, but rarely require much force to connect or disconnect.

The USB cable can safely be removed from the mounted connector by simply pulling it out of the connector. Two types of USB connectors are used: USB A-type and USB mini-B.

To remove a USB connector, grasp the connector and pull.

To connect a USB connector, grasp the connector and insert.

ZIF (zero insertion force)

: The device uses flex cables and ZIF flex cable connectors. Flex cables and ZIF connectors require special care when handling.

ZIF connectors use a sliding outer piece that latches and unlatches to secure and release the flex cable. ZIF cables cannot be successfully connected or disconnected without properly unlatching and latching the sliding outer piece.

CAUTION

Do not use excessive force when releasing pressure on the connector. Excessive force may result in breaking the sliding outer piece.

To remove a ZIF connector

CAUTION

Remove a flex cable only

after

the ZIF latch is open.

1. Using a suitable tool (for example, a paper clip, small flat-head screwdriver, or needle-nose pliers), slide the latching piece of the connector away from the connector body.

Service manual Appendices 203

2. Remove the cable.

To connect a ZIF connector

1. Slide the latching piece of the connector away from the connector body.

2. Insert the flex cable into the connector. This may require using a suitable tool to keep the latching piece elevated.

3. Slide the latching piece toward the connector body until it locks into place.

Connectors

Main board connectors

Connector Wiring harness

J1

J2

J3

J4

J5

USB

USB

USB

USB

USB

Connects with

MCE to modules—Braun if required

MCE to modules

MCE to modules

MCE to modules

MCE to modules

Connector

USB

USB

USB

USB

USB

204 Appendices

Connector Wiring harness

J30

J34

J45

J46

J23

J24

J26

J29

J48

J49

J14

J17

J19

J21

J6

J8

J11

J12

USB

USB

USB

Battery power

Main harness

Battery

Main harness

Light bar

LCD flex cable

Main harness

Power button

USB

Ethernet

Main harness

Client USB

Not used

LCD

USB

Connects with

Power button and LED status

MCE to handle module PCBA

Communications board

Speaker

Communications board J8

Not used

LCD board

MCE to SpO2

Communications board J4

MCE to NIBP

Reserved for future use

Battery connector board J2

Power supply board J2

Battery connector board J3

Fan connector on the power-supply cover

Light bar board J1

LCD

Communications board power

Welch Allyn Connex

®

Integrated Wall System

Connector

USB

USB

USB

Locking

Pressure

Locking

Locking

Pressure

Pressure

Pressure

ZIF

USB

Locking

Pressure

Mini USB

Pressure

Pressure

USB

Service manual

Battery connector board connectors

Appendices 205

Connector Wiring harness

J3

J4

J1

J2

N/A

Battery power

Battery

N/A

Connects with

Battery

Main board J29

Main board J34

Internal use only

Connector

Pressure

Locking

Locking

N/A

206 Appendices

Communications board connectors

Welch Allyn Connex

®

Integrated Wall System

Connector Wiring harness

J10

J11 *

J50

JB1

J8

J9

J4

J7

JD2 *

JD3 *

USB

USB

USB

Ethernet

Ethernet

Nurse call

Main

USB

USB

USB

Connects with

Main board J23

External (client)

Main board J14

Main board J11

External

External

Main board J49

External

External

External

JD4 * USB External

JR1 * N/A Radio

* Not available on the Basic communications board.

Connector

Mini USB

Mini USB

USB

Locking (RJ45)

Locking (RJ45)

Mini stereo

Pressure

USB

USB

USB

USB

Pressure

Service manual

Radio board connectors

Appendices 207

Connector Wiring harness

B Not used

G Antenna cable

A (not labeled) N/A

Antenna board connectors

Connects with

Not used

Antenna board PG

Standard communications board JR1

Connector

Pressure

Pressure

Pressure

Connector Wiring harness

PG

PB

Antenna cable

Not used

Connects with

Radio board G

Not used

Connector

Pressure

Pressure

208 Appendices

767 controller board connectors

Welch Allyn Connex

®

Integrated Wall System

Connector Wiring harness

J1

J2

J3

J5

J8

Optical assembly

Handle assembly

Optical assembly

USB

Handle assembly

Power supply board connectors

Connects with

Handle cradle

Handle

Handle cradle

Main board J8

Handle

Connector

Pressure

Pressure

Pressure

USB (mini)

Pressure

Connector Wiring harness

J1

J2

J3

GND

AC to power supply

Main harness

N/A

AC to power supply

Connects with

IEC connector (blue: line-in, brown: neutral)

Main board J30

Internal use only

IEC connector (green: ground) via ground stud

Connector

Pressure

Pressure

N/A

Pressure

Service manual Appendices 209

Connex Integrated Wall System interconnect diagram

IEC 60601 2nd edition-compliant devices: 6-hole USB cable separator

210 Appendices Welch Allyn Connex

®

Integrated Wall System

IEC 60601 3rd edition-compliant devices: 9-hole USB cable separator

EEN

1 2 3 4

1 2 3 4 5 6 7 8

_LED

_LED

VBU

LV DS_TXO_0 N

LV DS_TXO_0 P

LV DS_TXO_1 N

LV DS_TXO_1 P

LV DS_TXO_2 N

LV DS_TXO_2 P

LV DS_TXCLKO_ N

LV DS_TXCLKO_ P

LV DS_TXO_3 N

LV DS_TXO_3 P

LCD_FRC

LCD_DPS

LCD_MSL

LCD_K4

LCD_K3

LCD_K2

LCD_K1

NC

NC

LCD_A4

LCD_A3

LCD_A2

LCD_A1

M_T

M_R

M_R

M_T

CT_1

TD+

RD+

TD-

CT_2

RD-

CHS_G

75 75

1000pF

75 75

7

8

5

6

3

4

1

2

S_C VBU

DM_C VBU

4 6

5 7

VBU

VBU

BLK

+

BLK

+

VCC_5V0_ F

FAN_NEG

_LE BER

YELLOW

RED_LEDS

AMBER_LEDS

LED1_EX T

LED0_EX T

VBU

VBU

1 2 3 4 5 6 1 2 3 4 5 6 1 2 1 2

1 2 3 4 5 6

1 2 3 4 5 6

1 2

1 2

1 2

1 2 3

BLU

VBU

VBU

Service manual Appendices 211

Service record

Print the

Service record

pages to enter and save the results of your tests.

Date

:

Device name

:

Technician

:

Time

:

Serial number

:

Service tool version

:

Leak test

Leak test

Leak test:

Overpressure test

Overpressure test

Over Pressure Test:

Specification

Max: 5

Adult mode:

Neonate mode:

Actual reading

Specification

280 . . . . 329

130 . . . .164

Pass Fail

Actual reading

NIBP accuracy check

Target pressure ± 5 mmHg

0 mmHg

50 mmHg

150 mmHg

250 mmHg

Pressure meter Service tool

mmHg mmHg mmHg mmHg mmHg mmHg mmHg mmHg

Specification

± 1 mmHg

± 3 mmHg

± 3 mmHg

± 3 mmHg

Pass Fail

212 Appendices Welch Allyn Connex

®

Integrated Wall System

Masimo SpO2, SpHb, and heart rate tests

Test

SpO2 heart rate

61 bpm

SpO2 saturation

81%

SpHb g/dL

14 g/dL

Specification

Pulse rate 61 ±1 bpm

60 to 62 bpm

Saturation 81% ±3%

78 to 84%

SpHb 14 g/dL ±1 g/dL

13 g/dL to 15 g/dL

Nellcor SpO2 and heart rate test

Test Specification

SpO2 heart rate

60 bpm

Pulse rate 60 ±1 bpm

59 to 61 bpm

SpO2 saturation

75%

Saturation 75% ±1 sat point

74 to 76%

SpO2 heart rate

200 bpm

SpO2 saturation

90%

Pulse rate 200 ±2 bpm

198 to 202 bpm

Saturation 90% ±1 sat point

89 to 91%

Actual reading

bpm

% g/dL

Pass Fail

Actual reading

bpm

% bpm

%

Pass Fail

Service manual Appendices 213

Calibration key temperature test for SureTemp Plus

Temperature test

97.3 °F (36.3°C)

Specification ± 0.2°F (± 0.1°C)

97.1 to 97.5°F 36.2 to 36.4°C

Actual reading

°F or °C

Pass

SureTemp Plus test

9600 Plus Calibration Tester ID number Calibration Date

Fail

Next Calibration Due Date

Temperature tested

96.8 °F (36.0 °C)

Specification

± 0.3 °F (± 0.2 °C)

101.3 °F (38.5 °C) ± 0.2 °F (± 0.1 °C)

105.8 °F (41.0 °C) ± 0.3 °F (± 0.2 °C)

Range

96.5 °F to 97.1

°F

35.8 °C to 36.2

°C

101.1 °F to

101.5 °F

105.5 °F to

106.1 °F

38.4 °C to 38.6

°C

40.8 °C to 41.2

°C

Actual reading Pass

°F or

°C

°F or

°C

°F or

°C

Fail

Braun ThermoScan PRO 4000 or PRO 6000 test

9600 Plus Calibration Tester ID number Calibration Date Next Calibration Due Date

Temperature tested

96.8 °F (36.0 °C)

101.3 °F (38.5 °C)

105.8 °F (41.0 °C)

Specification ± 0.4 °F (± 0.2 °C)

96.4 °F to 97.2 °F 35.8 °C to 36.2 °C

100.9 °F to 101.7 °F 38.3 °C to 38.7 °C

105.4 °F to 106.2 °F 40.8 °C to 41.2 °C

Actual reading

°F or °C

°F or °C

°F or °C

Pass Fail

214 Appendices Welch Allyn Connex

®

Integrated Wall System

ECG functional test record

Inspection of module and cables

Step Acceptance criteria

1 No broken plastic, cracks, discoloration, missing parts, or rattle to module

2 No missing parts, cuts, cracks or discoloration to cables

Pass

Connection test

Step Acceptance criteria

1

3

Connex VSM restarts without any technical alarms or ECG error messages (step 6 of setup)

The LED is steady green

5 The LED is flashing green

Pass

Fail

Fail

Service manual Appendices 215

ECG basic functional test

19

20

20

10

13

6

6

6

6

5

5

Step Reading

5 Waveform displayed:

HR displayed:

RR displayed:

Heart rate:

Respiration rate:

Seconds to display HR:

Seconds to display RR:

ECG waveform printed: Yes

V-Tach alarm visible: Yes

Yes

Yes

Yes

14

16

13

14

V-Tach alarm audible:

V-Tach alarm visible:

V-Tach alarm audible:

Asystole alarm visible:

Yes

Yes

Yes

Yes

17

19

16

17

Asystole alarm audible: Yes

Asystole alarm visible: Yes

Asystole alarm audible: Yes

V-Fib alarm visible: Yes

V-Fib alarm audible:

V-Fib alarm visible:

V-Fib alarm audible:

Yes

Yes

Yes

No

No

No

No

No

No

No

No

No

No

No

No

No

No

Acceptance criteria

Device displays ECG waveform

Device displays heart rate

Device displays respiration rate

♥ /min 72 ≤ Reading ≤ 78 ( ♥ /min)

BPM 13

Reading

17 (BPM)

No

No seconds 16 seconds (10s+5*60/75 ♥ /min +2s) seconds 32 seconds (10s+5*60/15

/min +2s)

Device prints ECG waveform

V-Tach alarm is displayed on device Home tab

Pass

Alarm audio is audible

Visual alarm indication is cleared

No audio alarm

Asystole alarm is displayed on device

Home tab

Alarm audio is audible

Visual alarm indication is cleared

No audio alarm

V-Fib alarm is displayed on device Home tab

Alarm audio is audible

Visual alarm indication is cleared

No audio alarm

Fail

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