V e n t i l a t o r S y s t e m

7200 Service Manual

Part No. 066317Rev. A March 2004

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual i

Copyright information

Copyright 2004 Puritan-Bennett Corporation. All rights reserved. The 7200 SeriesTM Ventilator System is manufactured in accordance with Puritan Bennett proprietary information, covered by one or more of the following U.S. Patents and foreign equivalents: 4,954,799; 5,161,525; 5,271,389; 5,301,921; 5,319,540; 5,339,807; 5,368,019; and 5,390,666. 7200 Series, RT 200 and PTS 2000 are trademarks of Puritan-Bennett Corporation.

The information contained in this manual is the sole property of Puritan-Bennett Corporation and may not be duplicated without permission. This manual may be revised or replaced by Puritan-Bennett Corporation at any time and without notice. You should ensure that you have the most current applicable version of this manual; if in doubt, contact Puritan Bennett Technical Support group at 800.255.6774, or contact your local Puritan Bennett representative. While the information set forth herein is believed to be accurate, it is not a substitute for the exercise of professional judgment.

The ventilator should be operated and serviced only by trained professionals. Puritan Bennetts sole responsibility with respect to the ventilator, and its use, is as stated in the limited warranty provided.

Nothing in this manual shall limit or restrict in any way Puritan Bennetts right to revise or otherwise change or modify the equipment (including its software) described herein, without notice. In the absence of an express, written agreement to the contrary, Puritan Bennett has no obligation to furnish any such revisions, changes, or modifications to the owner or user of the equipment (including its software) described herein.

Preface

This manual provides information needed to service the Puritan Bennett 7200 Ventilator System. This manual is intended for use by certified biomedical engineering technicians or personnel with equivalent experience and training in servicing this type of equipment. It is recommended that the user complete the Puritan Bennett training class geared specifically to the 7200 Series Ventilator System.

While this manual covers the ventilator configurations currently supported by Puritan Bennett, it may not be all-inclusive and may not be applicable to your ventilator. Within the USA, contact Puritan Bennett at 1.800.255.6774 for questions about the applicability of the information.

Definitions

This manual uses three special indicators to convey information of a specific nature. They are:

Warning

Indicates a condition that can endanger the patient or the ventilator operator.

Caution

Indicates a condition that can damage the equipment.

NOTE:

Indicates points of particular emphasis that make operation of the ventilator more efficient or convenient.

Puritan-Bennett Corporation4280 Hacienda DrivePleasanton, CA 94588 USAPhone: 1.800.255.6774

Authorized Representative:Tyco Healthcare UK Limited154 Fareham RoadGosportPO13 0AS, UK

ii 7200 Series Ventilator System Service Manual 066317 Rev. A (03/04)

Warnings, cautions, and notes

Please take the time to familiarize yourself with the warnings, cautions and notes listed here. They cover safety considerations, special handling requirements, and regulations that govern the use of the 7200 Series Ventilator System.

To ensure proper servicing and avoid the possibility of physical injury, only qualified personnel should attempt to service, or make authorized modifications to the ventilator.

The user of this product shall have sole responsibility for any ventilator malfunctiondue to operation or maintenance performed by anyone not trained by Puritan Bennett staff.

To avoid an electrical shock hazard while servicing the ventilator, be sure to remove all power to the ventilator by disconnecting the power source and turning off all ventilator power switches.

To avoid a fire hazard, keep matches, lighted cigarettes, and all other sources of ignition (e.g., flammable anesthetics and/or heaters) away from the 7200 Series Ventilator System and oxygen hoses.Do not use oxygen hoses that are worn, frayed, or contaminated by combustible materials such as grease or oils. (Textiles, oils, and other combustibles are easily ignited and burn with great intensity in air enriched with oxygen.)In case of fire or a burning smell, immediately disconnect the ventilator from the oxygen and power supplies.

When handling any part of the 7200 Series Ventilator System, always follow your hospital infection control guidelines for handling infectious material.Puritan Bennett recognizes that cleaning, sterilization, sanitation, and disinfection practices vary widely among health care institutions. It is not possible for Puritan Bennett to specify or require specific practices that will meet all needs, or to be responsible for the effectiveness of cleaning, sterilization, and other practices carried out in the patient care setting.Puritan Bennett does recommend that users of its products that require cleaning and sterilization/disinfection consider the National Standards and Recommended Practices for Sterilization published by the Association for the Advancement of Medical Instrumentation (AAMI), as well as the following Center for Disease Control (CDC) publications: Guidelines for Maintenance of In-use Respiratory Therapy Equipment and Guidelines for Prevention of Nosocomial Pneumonia.

Patients on life-support equipment should be appropriately monitored by competent medical personnel and use of suitable monitoring devices.

The 7200 Series Ventilator System is not intended to be a comprehensive monitoring device and does not activate alarms for all types of dangerous conditions for patients on life-support equipment.

For a thorough understanding of ventilator operations, read the 7200 Series Ventilator System Operator's Manual before attempting to use the system.

Before activating any part of the ventilator, be sure to check the equipment for proper operation and, if appropriate, run the full extended self-test (EST).

Do not use sharp objects to make selections on the keyboard.

Federal law (U.S.) restricts the sale of this device to, or by the order of, any physician.

Check the ventilator periodically as outlined in this manual; do not use if defective. Immediately replace parts that are broken, missing, obviously worn, distorted, or contaminated.

An alternative source of ventilation should always be available when using the 7200 Ventilator System.

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Manufacturer

Puritan-Bennett Corporation4280 Hacienda DrivePleasanton, CA 94588 USA1.800.255.6774

Emissions Compliance

Applicable ONLY to those 7200 Series Ventilators bearing the CE label affixed to the rear panel: the 7200 Ventilator meets the criteria for EN55011 Emissions Classification, CISPR II, Group I, Class B.

Electromagnetic Interference (EMI)

The 7200 has been tested and found to comply with the limits for medical devices in accordance with the standards listed under "European Standards Compliance. These limits are designed to provide reasonable protection against harmful EMI in a typical medical installation.

Certain transmitting devices (cellular phones, walkie-talkies, cordless phones, paging transmitters, etc.) emit radio frequencies that could interrupt ventilator operation if located in a range too close to the ventilator. It is difficult to determine when the field strength of these devices becomes excessive. Practitioners should be aware that radio frequency emissions are additive. The ventilator must be located a sufficient distance from transmitting devices to avoid interruption. Do not operate the ventilator in a magnetic resonance imaging (MRI) environment. Consult with your institutions biomedical engineering department in case of interrupted ventilator operation and before relocating any life support equipment.

Because of the proliferation of radio-frequency transmitting equipment and other sources of electrical noise in the healthcare environment (for example, cellular phones, mobile two-way radios, electrical appliances), it is possible that high levels of EMI due to close proximity or strength of source may result in disruption of performance of the 7200 Ventilator.

The 7200 generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with these instructions, may cause harmful interference with other devices in the vicinity.

Disruption may be evidenced by erratic readings, cessation of operation, or incorrect functioning of other devices. If this occurs, the site of use should be surveyed to determine the source of this disruption. The following actions may be taken to eliminate the source:

Turn equipment in the vicinity off and on to isolate the source of interference.

Reorient or relocate the 7200.

Increase the distance between the 7200 and the other equipment.

Select alternative power receptacle (ac power outlet).

If further assistance is required, contact Puritan Bennetts Technical Services Department, or your local Puritan Bennett Representative.

Environmental Protection

Puritan Bennett recommends that customers or technical services personnel follow local governing ordinances and recycling instructions regarding disposal or recycling of the battery or other device components.

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European Standards Compliance

The following statement is applicable only to 7200 Series Ventilators bearing a CE label affixed to the rear panel.The application to the ventilator of a label bearing this symbol signifies that the 7200 Ventilator complies with the requirements of IEC 601-1-2, (EMC Collateral Standard), including the E-field susceptibility requirements at a level of 3 V per meter, at frequencies from 26 MHz to 1 GHz, and the ESD requirements of this standard. However, even at this level of device immunity, certain transmitting devices (cellular phones, walkie-talkies, cordless phones, paging instruments, etc.) emit radio frequencies which could interrupt ventilator operation if located too close to the ventilator. It is difficult to determine when the field strength of these devices becomes excessive.Practitioners should be aware that radio frequency emissions are additive, and that the ventilator must be located a sufficient distance from transmitting devices to avoid interruption. Do not operate the ventilator in a magnetic imaging (MRI) environment. Section 3 describes possible ventilator alarms and what to do if they occur. Consult with your institutionss biomedical engineering department in case of interrupted ventilator operation, and before relocating any life support equipment.Where this symbol is present on the 7200 Series Ventilator, it signifies that the ventilator complies with the requirements of Medical Device Directive 93/42/EEC and with the requirements of Council Directive 89/336/EEC relating to Electromagnetic compatibility.Where the CE symbol is not present on the ventilator, the statements appearing on this page relating to compliance with the requirements of IEC 601-1-2 (EMC Collateral Standard), and of Medical Device Directive 93/42/EEC and with the requirements of Council Directive 89/336/EEC related to Electromagnetic compatibility do NOT apply. Please verify the existence of this symbol by observing a label affixed to the ventilator rear panel.

Customer assistance

For further assistance call Puritan Bennett Technical Support group at 800.255.6774 or contact your local Puritan Bennett representative.

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual v

CONTENTS

1 General Information1.1 Safety ................................................................................................................................ 1-11.2 General Product Description.............................................................................................. 1-21.3 Configuration Information................................................................................................. 1-2

1.3.1 Configuration Differences .......................................................................................... 1-21.3.2 Model Differences ..................................................................................................... 1-41.3.3 Viewing Ventilator Software Information ................................................................... 1-41.3.4 Accessories ................................................................................................................ 1-51.3.5 Options ..................................................................................................................... 1-6

1.4 Specifications and Other Technical Data............................................................................ 1-91.5 Recommended Tools and Test Equipment....................................................................... 1-141.6 Service Kits ...................................................................................................................... 1-171.7 Controls and Indicators ................................................................................................... 1-191.8 Location of Serial Number ............................................................................................... 1-261.9 Warranty and Service Information ................................................................................... 1-261.10 Reference Documentation ............................................................................................. 1-26

2 Theory of Operation2.1 Overview of Ventilator Operation ...................................................................................... 2-12.2 Pneumatic System ............................................................................................................. 2-1

2.2.1 Wall Gas Supply System ............................................................................................ 2-82.2.1.1 Component Descriptions................................................................................... 2-82.2.1.2 System Operation.............................................................................................. 2-9

2.2.2 Motor Compressor System ...................................................................................... 2-112.2.2.1 Component Descriptions................................................................................. 2-112.2.2.2 System Operation (Figure 2-5) ........................................................................ 2-12

2.2.3 Flow Control System ............................................................................................... 2-142.2.3.1 Component Descriptions................................................................................. 2-142.2.3.2 System Operation (Figure 2-7) ........................................................................ 2-15

2.2.4 Safety Valve System................................................................................................. 2-172.2.4.1 Component Descriptions................................................................................. 2-172.2.4.2 System Operation............................................................................................ 2-18

2.2.5 Patient System......................................................................................................... 2-192.2.5.1 Component Descriptions................................................................................. 2-19

2.2.6 Exhalation System ................................................................................................... 2-232.2.6.1 Component Descriptions................................................................................. 2-232.2.6.2 System Operation (Figure 2-14) ...................................................................... 2-24

2.2.7 PEEP/CPAP System .................................................................................................. 2-262.2.7.1 Component Descriptions................................................................................. 2-26

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2.2.7.2 System Operation (Figure 2-16) .......................................................................2-272.3.1 Overview .................................................................................................................2-322.3.2 The ac Power Distribution: Utility Panel....................................................................2-332.3.3 The dc Power Supply and Distribution: Power Supplies and Batteries .......................2-34

2.3.3.1 +5 V, +12 V, and 15 V Supplies ......................................................................2-342.3.3.2 Power Fail Module ...........................................................................................2-382.3.3.3 Isolation Transformer .......................................................................................2-382.3.3.4 Batteries...........................................................................................................2-38

2.3.4 CPU, Memory, and Associated Circuits: MegaCPU PCB or 80188 CPU PCB..............2-402.3.5 CPU and Associated Circuits: 8088 CPU PCB............................................................2-422.3.6 Memory: Memory PCB (8088-Based Ventilators Only) .............................................2-442.3.7 DCI-Display Controller PCB (Used in 80188-Based Units Only).................................2-462.3.8 Display Controller PCB (Used in 8088-Based Units Only)..........................................2-482.3.9 Keyboard, Displays, and Drivers: Front Panel Display PCB ........................................2-502.3.10 A/D and D/A Converter: Conversion PCB ...............................................................2-552.3.11 Interface PCB .........................................................................................................2-572.3.12 Pulse Oximetry PCB Assembly ................................................................................2-62

2.3.12.1 General Principle of Operation .......................................................................2-622.3.12.2 Operation of the Sensor .................................................................................2-622.3.12.3 How Pulse Oximetry Is Implemented in the 7200 Series Ventilator .................2-64

2.4 Operational Descriptions .................................................................................................2-652.4.1 Breath Delivery ........................................................................................................2-66

2.4.1.1 Inspiration........................................................................................................2-662.4.2 I/O Device Operation...............................................................................................2-78

2.4.2.1 Keyboard Operation (Figure 2-46) ...................................................................2-782.4.2.2 20-Character Display Operation (Figure 2-47)..................................................2-792.4.2.3 Numeric Display Operation (Figure 2-48).........................................................2-802.4.2.4 LED Indicators Operation (Figure 2-49) ............................................................2-812.4.2.5 Alarm Summary Display Operation (Figure 2-50) .............................................2-832.4.2.6 Audio Alarm Operation (Figure 2-51) ...............................................................2-832.4.2.7 Analog Meter Operation (Figure 2-52) .............................................................2-832.4.2.8 Nurse Call Operation (Figure 2-53) ..................................................................2-872.4.2.9 A/D Conversion (Figure 2-54) ..........................................................................2-872.4.2.10 Proportional Solenoid Valve Operation (Figure 2-55)......................................2-87

2.4.3 Emergency Operating Modes...................................................................................2-922.4.3.1 Bus Timeout (BTO) (Figure 2-56) .....................................................................2-922.4.3.2 Power Failure (Figure 2-57) ..............................................................................2-932.4.3.3 Watchdog Timeout (Figure 2-58).....................................................................2-962.4.3.4 Initialization (Figure 2-59) ................................................................................2-982.4.3.5 Back-up Ventilation (Figure 2-60)...................................................................2-1002.4.3.6 Safety Valve Open (Figure 2-61).....................................................................2-1032.4.3.7 Wall Air-to-Compressor Switchover (Figure 2-62) ...........................................2-1042.4.3.8 Apnea Ventilation...........................................................................................2-1042.4.3.9 Disconnect Ventilation ...................................................................................2-105

Contents

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3 Installation and Assembly3.1 Ventilator DIP Switches...................................................................................................... 3-1

3.1.1 Checking DIP Switch Settings .................................................................................... 3-13.1.2 Setting DIP Switches.................................................................................................. 3-4

3.2 Installing 7202 Display ...................................................................................................... 3-63.3 Installing Remote Nurse Call.............................................................................................. 3-73.4 Installing Pulse Oximetry Extension Cable.......................................................................... 3-83.5 Installing Printer .............................................................................................................. 3-103.6 Assembling Ventilator Cart .............................................................................................. 3-103.7 Installing Flex Arm........................................................................................................... 3-103.8 Installing Patient System.................................................................................................. 3-113.9 Connecting Gas Supplies ................................................................................................. 3-113.10 Connecting Electrical Power .......................................................................................... 3-123.11 Installation Checkout..................................................................................................... 3-133.12 Preparing for Patient Use ............................................................................................... 3-13

4 Periodic Maintenance4.1 Periodic Maintenance Details............................................................................................. 4-1

4.1.1 Daily: Gas Supply Water Traps and Filters (Air and Oxygen)....................................... 4-24.1.2 Daily: Exhaled Gas Collector Vial................................................................................ 4-34.1.3 Between Patients (or Every 15 Days, at a Minimum): Bacteria Filters in Patient System ...

4-34.1.4 Every 250 Hours: Cooling Fan Filter ........................................................................... 4-44.1.5 Every 2,500 Hours: Volume Calibration ..................................................................... 4-44.1.6 Every 2,500 and 10,000 Hours: Preventive Maintenance ........................................... 4-44.1.7 Annually: Reusable Bacteria Filters ............................................................................. 4-7

4.2 Cleaning and Sterilization.................................................................................................. 4-8

5 Self-Tests5.1 Introduction ...................................................................................................................... 5-1

5.2.1 Introduction .............................................................................................................. 5-25.2.1.1 Structure of POST.............................................................................................. 5-25.2.1.2 When Is POST Run............................................................................................. 5-25.2.1.3 If POST Fails ...................................................................................................... 5-2

5.2.2 Running POST........................................................................................................... 5-25.2.3 Error Handling........................................................................................................... 5-3

5.2.3.1 How POST Reports Errors .................................................................................. 5-35.2.3.2 How the Ventilator Responds to Errors............................................................... 5-4

5.3 Extended Self-Test (EST) .................................................................................................... 5-45.3.1 Introduction .............................................................................................................. 5-4

5.3.1.1 When To Run EST.............................................................................................. 5-55.3.1.2 Hardware Requirements .................................................................................... 5-55.3.1.3 What If EST Fails ................................................................................................ 5-55.3.1.4 Quick EST (QUEST)............................................................................................ 5-6

5.3.2 Starting EST............................................................................................................... 5-65.3.3 Running EST Test Routines ........................................................................................ 5-8

5.3.3.1 Prompts ............................................................................................................ 5-95.3.3.2 Operator Errors.................................................................................................. 5-9

Contents

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5.3.3.3 Power Loss During EST.....................................................................................5-105.3.3.4 Displays ...........................................................................................................5-10

5.3.4 Error Handling .........................................................................................................5-125.3.4.1 If an EST Test Fails ............................................................................................5-125.3.4.2 If the Entire EST Fails ........................................................................................5-13

5.3.5 Exiting EST...............................................................................................................5-135.3.5.1 During Test Routine Execution .........................................................................5-135.3.5.2 After the Completion of EST.............................................................................5-14

5.3.6 Restarting EST ..........................................................................................................5-145.3.7 Printing an EST Status Report ...................................................................................5-14

5.3.7.2 Generating The Report.....................................................................................5-155.3.8 Viewing Data from Most Recent EST Run .................................................................5-165.3.9 Viewing Previous Error Codes...................................................................................5-175.3.10 Clearing Error Codes from Battery-Backed RAM .....................................................5-18

6 Error Codes6.1 Introduction.......................................................................................................................6-1

6.1.1 POST Error Codes .....................................................................................................6-16.1.2 Soft Error Codes (Table 6-3) .......................................................................................6-16.1.3 EST Error Codes (Table 6-4) .......................................................................................6-16.1.4 Communications Error Codes (Table 6-5)...................................................................6-26.1.5 Fault Codes................................................................................................................6-2

6.2 Interpreting Error Codes.....................................................................................................6-2

7 Performance Verification7.1 When To Run.....................................................................................................................7-17.2 Test Equipment and Service Material Required ...................................................................7-17.3 Preliminary Ventilator Cleaning and Inspection ..................................................................7-37.4 Preliminary Ventilator Setup ...............................................................................................7-47.5 Preliminary Test Instrument Setup......................................................................................7-4

7.5.1 PTS 2000 and BreathLab PTS Software Setup.............................................................7-47.5.2 RT-200 Setup .............................................................................................................7-6

7.6 Performance Verification Procedures ..................................................................................7-67.6.1 Electrical Safety Test (Test 1) ......................................................................................7-77.6.2 Power-On Self-Test (POST) (Test 2) ............................................................................7-87.6.3 Total Extended Self-Test (EST) (Test 3) ....................................................................7-87.6.4 Battery-Backed RAM Test (Test 4)...............................................................................7-97.6.5 Lamp Test (Test 5) ...................................................................................................7-117.6.6 Analog Output Connector Test (Test 6) ...................................................................7-147.6.7 Power Supply Test (Test 7).......................................................................................7-167.6.8 Keyboard Test (Test 8) .............................................................................................7-187.6.9 Gas Supply System Test (Test 9)...............................................................................7-197.6.10 Peak Inspiratory Flow Test (Test 10) .......................................................................7-217.6.11 High-Pressure Limit Alarm, Alarm Volume Control,

and Nurses Call Relay Test (Test 11).............................................................................7-23

Contents

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7.6.12 Gas Volume Accuracy Test (Test 12) ...................................................................... 7-257.6.13 Sensitivity Accuracy Test (Test 13) ......................................................................... 7-277.6.14 PEEP System Test (Test 14) .................................................................................... 7-287.6.15 Oxygen Percentage Accuracy Test (Test 15) .......................................................... 7-317.6.16 Heated Exhalation Bacteria Filter and Power

Disconnect Alarm Test (Test 16) ................................................................................... 7-337.7 Returning Ventilator to Operation ................................................................................... 7-347.8 Troubleshooting .............................................................................................................. 7-34

8 Repair: Introduction8.1 How To Use the Repair Sections ........................................................................................ 8-18.2 General Repair Safety......................................................................................................... 8-18.3 General Repair Information................................................................................................ 8-2

8.3.1 Repair-Related Inspection .......................................................................................... 8-28.3.2 Repair-Related Cleaning............................................................................................. 8-28.3.3 Electrical Cables and Pneumatic Tubing..................................................................... 8-38.3.4 Adhesive Use ............................................................................................................. 8-38.3.5 Repainting and Touch-up .......................................................................................... 8-48.3.6 Replacement Part Ordering ...................................................................................... 8-48.3.7 Post-Repair ................................................................................................................ 8-4

8.4 Electrostatic Discharge Control .......................................................................................... 8-48.4.1 General Information .................................................................................................. 8-48.4.2 Procedures and Precautions....................................................................................... 8-5

9 Repair: Cabinet Assembly9.1 Left Panel .......................................................................................................................... 9-19.2 Electronics Compartment Fan Filter ................................................................................... 9-2

9.2.1 In Unit with Removable Louver Panel......................................................................... 9-29.2.2 In Unit with One-Piece, Nonremovable Left Panel...................................................... 9-3

9.3 Electronics Compartment Fan............................................................................................ 9-49.3.1 In Unit with Removable Louver Panel......................................................................... 9-49.3.2 In Unit with One-Piece, Nonremovable Left Panel...................................................... 9-6

9.4 Corner Panel ..................................................................................................................... 9-69.5 Pulse Oximetry Extension Cable and Retainers................................................................... 9-89.6 Rail Tag ........................................................................................................................... 9-109.7 Removal/Installation of Ventilator Cabinet Assembly........................................................ 9-11

10 Repair: Pneumatic Chassis Assembly10.1 Removal/Installation of Pneumatic Chassis Assembly ..................................................... 10-110.2 Cleaning of Pneumatic Chassis Assembly ....................................................................... 10-310.3 Oxygen and Air Water Trap/Filter Assemblies................................................................. 10-4

10.3.1 Removal/Installation .............................................................................................. 10-410.3.2 Disassembly/Assembly........................................................................................... 10-5

10.4 Oxygen and Air Flow Sensor Assemblies (Q1/T1 and Q2/T2)......................................... 10-710.4.1 Removal ................................................................................................................ 10-710.4.2 Installation............................................................................................................. 10-810.4.3 Cleaning................................................................................................................ 10-910.4.4 Inspection ............................................................................................................. 10-9

10.5 Solenoid Valves SOL3 Through SOL8........................................................................... 10-10

Contents

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10.6 Back-up Ventilator (BUV) Pressure Switch (PS4)............................................................10-1110.7 Oxygen and Air Screen Filters (F10 and F11)................................................................10-1110.8 Air and Oxygen Gas Supply Assemblies (Pressure Switch PS1

or PS2, Check Valve CV1 or CV2, and Regulator REG1 or REG2).....................................10-1210.8.1 Testing REG1 or REG2 Outlet Pressure..................................................................10-1210.8.2 Removal/Installation.............................................................................................10-1310.8.3 High Pressure Leak Test........................................................................................10-1410.8.4 REG1 or REG2 Adjustment ...................................................................................10-16

10.9 Pressure Transducer PCB (P1, P2, and DP)....................................................................10-1910.10 Proportional Valve Group (PSOL1, PSOL2, SOL1, and SOL2)......................................10-19

10.10.1 Removal of Proportional Valve Group.................................................................10-1910.10.2 Service of SOL1 and SOL2..................................................................................10-1910.10.3 SOL1 and SOL2 Coil Test ...................................................................................10-2010.10.4 SOL1 and SOL2 Mechanical Test........................................................................10-2010.10.5 Installation of Proportional Valve Group .............................................................10-21

10.11 Safety Valve/Check Valve (SV/CV3) Assembly .............................................................10-2110.12 Safety Valve Back Pressure Regulator (REG4) ..............................................................10-21

10.12.1 Removal/Installation...........................................................................................10-2110.12.2 Adjustment ........................................................................................................10-22

10.13 Adjustable Restrictor (R3) Adjustment ........................................................................10-25

11 Repair: Power Supply Assembly11.1 Testing Output Voltages ................................................................................................11-111.2 Calibration of Output Voltages.......................................................................................11-111.3 Calibration of Power Fail Trip Point ................................................................................11-311.4 Removal/Installation of Top-Mounted Surge Suppressor ................................................11-4

11.4.1 100/115 V Surge Suppressor..................................................................................11-411.4.2 220/240 V Surge Suppressor..................................................................................11-6

11.5 Removal/Installation of Power Supply Assembly .............................................................11-711.6 Removal/Installation of Power Supply Modules and Isolation Transformer ......................11-8

11.6.1 +5 V Module ..........................................................................................................11-811.6.2 +12 V Module ........................................................................................................11-811.6.3 15 V Module........................................................................................................11-811.6.4 Power Fail Module ...............................................................................................11-1011.6.5 Isolation Transformer (220/240 V Power Supply) .................................................11-10

12 Repair: Utility Panel Assembly12.1 Removal/Installation of Utility Panel Assembly ................................................................12-112.2 Power Switch .................................................................................................................12-512.3 Ventilator Elapsed Time Meter........................................................................................12-512.4 Circuit Breaker ...............................................................................................................12-512.5 Power Line Filter ............................................................................................................12-512.6 Power Relay ...................................................................................................................12-612.7 Utility Panel Harness.......................................................................................................12-7

12.7.1 Removal/Installation...............................................................................................12-712.7.2 Fuse Replacement ..................................................................................................12-8

12.8 220/240 V Line Voltage Filter Receptacle (Later Versions)...............................................12-912.9 Batteries.........................................................................................................................12-9

Contents

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13 Repair: Exhalation Compartment13.1 Exhalation Bacteria Filter................................................................................................ 13-1

13.1.1 In Bottom-Loading Exhalation Compartment ........................................................ 13-113.1.2 In Front-Loading Exhalation Compartment............................................................ 13-3

13.2 Exhalation Sensor Assembly (Q3/T3) and Check Valve (CV5) Assembly.......................... 13-513.2.1 In Bottom-Loading Exhalation Compartment ........................................................ 13-513.2.2 In Front-Loading Exhalation Compartment............................................................ 13-8

13.3 Internal Exhalation Valve ............................................................................................... 13-913.3.1 In Bottom-Loading Exhalation Compartment ........................................................ 13-913.3.2 In Front-Loading Exhalation Compartment............................................................ 13-9

13.4 Bacteria Filter Heater ..................................................................................................... 13-913.4.1 In Bottom-Loading Exhalation Compartment ........................................................ 13-913.4.2 In Front-Loading Exhalation Compartment.......................................................... 13-10

13.5 Audio Alarm ................................................................................................................ 13-1213.6 Removal/Installation of Exhalation Compartment ........................................................ 13-14

13.6.1 Bottom-Loading .................................................................................................. 13-1413.6.2 Front-Loading...................................................................................................... 13-14

14 Repair: Card Cage Assembly14.1 Accessing Motherboard PCB Connectors ....................................................................... 14-214.2 Removal, Disassembly, and Installation of EMI Filter Connector Plate............................. 14-314.3 Removal/Installation of PCBs ......................................................................................... 14-414.4 Removal/Installation of EPROMs and PALs ................................................................... 14-11

14.4.1 Removal .............................................................................................................. 14-1114.4.2 Installation........................................................................................................... 14-15

14.5 Calibration of Battery Charger Voltage (R84 on Interface PCB) .................................... 14-1714.6 Calibration of BUV Volumes (R85 and R86 on Interface PCB) ....................................... 14-2014.7 Removal/Installation of Card Cage Assembly ............................................................... 14-21

15 Repair: Console Assembly15.1 Alarm Summary Lamps (Basic Console Only)................................................................. 15-115.2 Raising Console ............................................................................................................. 15-215.3 PEEP/CPAP Regulator (REG5) ......................................................................................... 15-415.4 Analog Meter ................................................................................................................ 15-7

15.4.1 Removal/Installation .............................................................................................. 15-715.4.2 Adjustment............................................................................................................ 15-8

15.5 Front Panel Display PCB............................................................................................... 15-1115.5.1 In Enhanced-Plus Console.................................................................................... 15-1115.5.2 In Enhanced Console........................................................................................... 15-1715.5.3 In Basic Console .................................................................................................. 15-19

15.6 Keyboard Assembly ..................................................................................................... 15-2115.6.1 In Enhanced-Plus Console.................................................................................... 15-2115.6.2 In Enhanced Console........................................................................................... 15-2115.6.3 In Basic Console .................................................................................................. 15-21

15.7 Pulsed Alarm PCB Assembly......................................................................................... 15-2215.8 Main Flow Bacteria Filter Compartment Door .............................................................. 15-2415.9 Removal/Installation of Console Assembly ................................................................... 15-24

15.9.1 Enhanced-Plus ..................................................................................................... 15-2415.9.2 Enhanced or Basic ............................................................................................... 15-25

Contents

xii 7200 Series Ventilator System Service Manual 066317 Rev. A (03/04)

16 Repair: Compressor Pedestal Assembly16.1 Pedestal Access Panel Cover and Inner Access Panel .......................................................16-116.2 Compressor Fan Filter ...................................................................................................16-216.3 Compressor Inlet Filter (F5) ............................................................................................16-216.4 Compressor Circuit Breaker ............................................................................................16-316.5 Compressor Power Relay................................................................................................16-4

16.5.1 Testing...................................................................................................................16-416.5.2 Removal/Installation...............................................................................................16-5

16.6 Compressor Power Line Filter .........................................................................................16-516.7 Compressor Elapsed Time Meter ....................................................................................16-516.8 Compressor Back Pressure Regulator (REG3) .................................................................16-6

16.8.1 Testing Outlet Pressure ..........................................................................................16-616.8.2 Removal/Installation...............................................................................................16-616.8.3 Adjustment ............................................................................................................16-7

16.9 Compressor Pressure Switch (PS3) .................................................................................16-816.9.1 Testing PS3 and REG3............................................................................................16-816.9.2 Removal/Installation.............................................................................................16-10

16.10 Compressor Unloading Solenoid (SOL9) ....................................................................16-1016.11 Compressor Inlet Silencer...........................................................................................16-1116.12 Compressor Outlet Filter (F6) .....................................................................................16-1116.13 Compressor Compartment Fan (Attached to Divider).................................................16-11

16.13.1 Removal/Installation...........................................................................................16-1116.13.2 Inspection..........................................................................................................16-11

16.14 Compressor and Shock Mounts..................................................................................16-1316.14.1 Testing...............................................................................................................16-1316.14.2 Removal.............................................................................................................16-1316.14.3 Installation .........................................................................................................16-13

16.15 Compressor Pedestal Base Fan (100, 220, and 240 V ac Units Only) ..........................16-1416.15.1 Removal/Installation...........................................................................................16-1416.15.2 Inspection..........................................................................................................16-14

16.16 Heat Exchanger..........................................................................................................16-1516.17 Compressor Check Valve (CV4)..................................................................................16-1516.18 Pedestal Base Assembly ..............................................................................................16-1516.19 Casters.......................................................................................................................16-1516.20 Exit Plenum Cover .....................................................................................................16-1716.21 Bumpers ....................................................................................................................16-17

16.21.1 Multipiece Style with Ribbed Corners.................................................................16-1716.21.2 One-Piece Style..................................................................................................16-17

16.22 Removal/Installation of Compressor Pedestal Assembly .............................................16-18

17 Repair: Ventilator Pedestal Assembly17.1 Removal/Installation of Ventilator Pedestal Assembly......................................................17-117.2 Pedestal Access Panel Cover and Inner Access Panel .......................................................17-117.3 Bumpers .......................................................................................................................17-3

17.3.1 Multipiece Style with Ribbed Corners.....................................................................17-317.3.2 One-Piece Style......................................................................................................17-3

17.4 Casters...........................................................................................................................17-3

Contents

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xiii

18 Repair: Ventilator Cart Assembly18.1 Removal/Installation of Ventilator Cart Assembly ........................................................... 18-118.2 Hose Management Bracket............................................................................................ 18-118.3 Casters ......................................................................................................................... 18-218.4 Bumpers........................................................................................................................ 18-218.5 Ventilator Cart Drawer................................................................................................... 18-4

19 Repair: Panels and Connector Bracket19.1 Top Cabinet Panel and Top Cover ................................................................................. 19-1

19.1.1 Removal/Installation .............................................................................................. 19-119.2 Back Panel Assembly and Inner Back Panel ................................................................... 19-4

19.2.1 Removal/Installation .............................................................................................. 19-419.2.2 Repair.................................................................................................................... 19-4

19.3 Connector Bracket Assembly ........................................................................................ 19-619.4 Connector Bracket Cable/Harness Assemblies ............................................................... 19-8

20 7202 Display20.1 Description.................................................................................................................... 20-1

20.1.1 Overview............................................................................................................... 20-120.1.3 Specifications ........................................................................................................ 20-720.1.4 Screens.................................................................................................................. 20-7

20.1.4.1 Patient Data Monitoring Screen..................................................................... 20-720.1.4.2 Ventilator Settings 1 Screen........................................................................... 20-820.1.4.3 Ventilator Settings 2 Screen........................................................................... 20-920.1.4.4 Alarm Screen ............................................................................................... 20-1020.1.4.5 Key Menu........................................................................................... 20-1120.1.4.6 Quick EST Screen......................................................................................... 20-1220.1.4.7 Total EST Screen.......................................................................................... 20-13

20.2 Operation ................................................................................................................... 20-1420.2.1 Lamp Test ........................................................................................................... 20-1420.2.2 Normal Operation ............................................................................................... 20-1420.2.3 Error Messages .................................................................................................... 20-1420.2.4 Key Functions ............................................................................................. 20-1420.2.5 Responding to Alarms.......................................................................................... 20-1420.2.6 Quick and Total EST ............................................................................................ 20-14

20.3 Service......................................................................................................................... 20-1520.3.1 Required Tools..................................................................................................... 20-1520.3.2 Cleaning.............................................................................................................. 20-1520.3.3 Pre-Service Procedures......................................................................................... 20-15

20.3.3.1 Removing the Display (7200a Ventilator equipped with a printer) ............... 20-1620.3.4 Rear Housing....................................................................................................... 20-16

20.3.4.1 Removing the Housing ................................................................................ 20-1620.3.4.2 Replacing the Rear Housing......................................................................... 20-19

20.3.5 Printed Circuit Board (PCB) Assembly .................................................................. 20-2020.3.5.1 Disassembly................................................................................................. 20-2020.3.5.2 Reassembly.................................................................................................. 20-25

20.3.6 Swivel Arm Assembly........................................................................................... 20-2720.3.6.1 Disassembly................................................................................................. 20-27

Contents

xiv 7200 Series Ventilator System Service Manual 066317 Rev. A (03/04)

20.3.6.2 Reassembly ..................................................................................................20-3320.3.6.3 Attaching the Bottom Plate and Spring Assembly.........................................20-33

20.4 Testing and Troubleshooting .......................................................................................20-3420.4.1 No Cursor ............................................................................................................20-35

20.4.1.1 Check Ventilator Configuration ....................................................................20-3520.4.1.2 Check that DISPLAY Port Is Functioning .......................................................20-3520.4.1.3 Check DCI Port Configurations ....................................................................20-3520.4.1.4 Check Display Cable Connections ................................................................20-3620.4.1.5 Check the Test Screens ................................................................................20-3620.4.1.6 Check Display Power Supply Voltages ..........................................................20-3820.4.1.7 Check PCB Assembly Cabling.......................................................................20-4320.4.1.8 If the Display Still Doesn't Work ...................................................................20-43

20.4.2 Ventilator Does not Communicate with Display ...................................................20-4420.4.3 Display Works but Printer Doesn't ........................................................................20-4420.4.4 Display Shows All Data on One LIne.....................................................................20-4620.4.5 Screen Display Otherwise Flawed .........................................................................20-4820.4.7 Screen is Delaminating.........................................................................................20-4920.4.8 Performance Testing ............................................................................................20-49

21 Storage21.1 Preparation for Storage ..................................................................................................21-121.2 Storage ..........................................................................................................................21-2

21.2.1 Storage Requirements and Recommendations .......................................................21-221.2.2 Returning the Ventilator to Use after Storage .........................................................21-221.2.3 Ventilator Subassemblies ........................................................................................21-3

7200 Series Ventilatory System Assemblies and Accessories Parts List

A General InformationA.1 Introduction...................................................................................................................... A-1

A.1.1 General Configuration Identification ......................................................................... A-1A.1.2 Special Configuration Identification .......................................................................... A-5

A.2 Ordering Information........................................................................................................ A-5A.2.1 Service Requests ....................................................................................................... A-5A.2.2 Warranty................................................................................................................... A-5A.2.3 Return and Exchange Policy ...................................................................................... A-5

A.3 Using This Parts List ......................................................................................................... A-6A.3.1 How To Find a Part Number ..................................................................................... A-6A.3.2 How to Use the Parts Lists and Figures ...................................................................... A-6

A.4 Abbreviations ................................................................................................................... A-7A.5 Reference Designators....................................................................................................... A-9A.6 Service Kits ..................................................................................................................... A-10

A.6.1 7200 Series Upgrade Kits ........................................................................................ A-10A.6.2 Enhanced-Plus Console Kit ...................................................................................... A-10A.6.3 7200ae Ventilator Upgrade Kit for the 7250 Metabolic Monitor.............................. A-10A.6.4 Modified Top Panel Kit............................................................................................ A-10A.6.5 7250 Metabolic Monitor Accessory Startup Kit........................................................ A-11A.6.6 Ventilator Appearance Kit ....................................................................................... A-11

Contents

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xv

A.6.7 Cabinet and Pedestal Kits ........................................................................................ A-11A.6.8 7200a Display and DCI Interface Kit ........................................................................ A-11A.6.9 7202 Display Compatibility Kit ................................................................................ A-11A.6.10 7202 Display Upgrade Kit...................................................................................... A-12A.6.11 Exhalation Compartment Upgrade Kit ................................................................... A-12A.6.12 Rail Cover Appearance Kit ..................................................................................... A-12A.6.13 Fan Door Kit .......................................................................................................... A-12A.6.14 Pulsed Audio Alarm Kit .......................................................................................... A-12A.6.15 Caster Upgrade Kit ................................................................................................ A-12A.6.16 Stop Bracket Kit..................................................................................................... A-12A.6.17 Pedestal Bumper Kit .............................................................................................. A-12A.6.18 Flex Arm Reinforcement Kit ................................................................................... A-13A.6.19 Ventilator Unit Preventive Maintenance Kits .......................................................... A-13A.6.20 Compressor Compartment Preventive Maintenance Kits ....................................... A-15A.6.21 Ventilator Unit Spare Part Kit ................................................................................. A-17

B 7200 Series Ventilatory SystemB.1 7200 Series Ventilatory System Assemblies and Accessories ............................................... B-3B.2 7250 Metabolic Monitor Assembly .................................................................................... B-8B.3 Flex Arm Assemblies ........................................................................................................ B-10B.4 Patient Pressure Water Trap Assembly.............................................................................. B-14B.5 Wall Air Water Trap Assembly .......................................................................................... B-16

C Ventilator SubassembliesC.1 100/115 V and Earlier 220/240 V Ventilator ......................................................................C-2C.2 220/240 V EMI Ventilator................................................................................................C-13

D Pneumatic Chassis AssemblyD.1 Pneumatic Chassis Assemblies (EMI/Non-EMI) ..................................................................D-3D.2 Air Inlet Assembly .............................................................................................................D-6D.3 Oxygen Inlet Assembly ...................................................................................................D-10D.4 Oxygen and Air Flow Sensors..........................................................................................D-14D.5 Upper Pneumatic Chassis ................................................................................................D-16D.6 Safety Relief Valve/Back Pressure Kit ................................................................................D-18D.7 Proportional Valve Group................................................................................................D-21D.8 Lower Pneumatic Chassis ................................................................................................D-25D.9 Pneumatic Chassis Tubing for External Exhalation Valves.................................................D-28D.10 Pneumatic Chassis Fittings for External Exhalation Valves ..............................................D-30D.11 Pneumatic Chassis Tubing for Internal Exhalation Valves ...............................................D-32D.12 Pneumatic Chassis Fittings for Internal Exhalation Valves...............................................D-34D.13 Exhalation Pilot Pressure Kit ..........................................................................................D-36

E Power Supply AssemblyE.1 100/115 V Power Supply Assembly.................................................................................... E-2E.2 220/240 V Power Supply Assembly.................................................................................... E-7

Contents

xvi 7200 Series Ventilator System Service Manual 066317 Rev. A (03/04)

F Utility Panel AssemblyF.1 100/115 V and Earlier (Non-EMI) 220/240 V Utility Panel Assembly ................................... F-3F.2 220/240 V (EMI) Utility Panel Assembly.............................................................................. F-7

G Exhalation Compartment AssemblyG.1 Bottom-Loading Exhalation Compartment Assemblies...................................................... G-2

G.1.1 Bottom-Loading Exhalation Compartment Assembly with Internal Exhalation Valve ........................................................................................ G-2

G.1.2 Bottom-Loading Exhalation Compartment Assembly with External Exhalation Valve........................................................................................ G-8

G.2 Front-Loading Exhalation Compartment Assemblies ....................................................... G-12G.2.1 Front-Loading Exhalation Compartment Assembly

with Internal Exhalation Valve ...................................................................................... G-12G.2.2 Front-Loading Exhalation Compartment Assembly

with External Exhalation Valve...................................................................................... G-16

H Card Cage AssemblyH.1 Non-EMI Card Cage Assembly.......................................................................................... H-2H.2 EMI Card Cage Assembly.................................................................................................. H-7H.3 EMI Card Cage Connector Plate Assembly ...................................................................... H-10

I Console AssemblyI.1 Enhanced-Plus Console Assembly.........................................................................................I-2I.2 Enhanced Console Assembly ................................................................................................I-7I.3 Basic Console Assembly......................................................................................................I-11

J Connector Bracket AssembliesJ.1 7-Connector Bracket Assembly.............................................................................................J-2J.2 4-Connector Bracket Assembly...........................................................................................J-14J.3 3-Connector Bracket Assembly...........................................................................................J-16J.4 2-Connector Bracket Assembly...........................................................................................J-20

K Ventilator Cabinet AssemblyK.1 100/115 V and Earlier 220/240 V Ventilator Cabinet Assembly ..........................................K-3K.2 Later 220/240 V (EMI) Ventilator Cabinet Assembly ...........................................................K-9

L Back Panel AssemblyL.1 7-Connector Back Panel Assembly ......................................................................................L-3L.2 3-Connector Back Panel Assembly ......................................................................................L-6L.3 2-Connector Back Panel Assembly ......................................................................................L-8L.4 Model 7200 Back Panel Assembly..................................................................................... L-10

M Compressor Pedestal AssemblyM.1 Compressor Pedestal Assembly ....................................................................................... M-3M.2 Compressor Pedestal Base Assembly ............................................................................... M-9M.3 Upper Compressor Compartment Assembly ................................................................. M-16M.4 Compressor Pedestal Tubing......................................................................................... M-18

Contents

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xvii

N Ventilator Pedestal AssemblyN.1 Ventilator Pedestal Assembly............................................................................................ N-2N.2 Ventilator Pedestal Base Assembly.................................................................................... N-5

O Ventilator Cart AssemblyO.1 Ventilator Cart Assembly.................................................................................................. O-2O.2 Ventilator Cart Drawer Assembly...................................................................................... O-4

P 7202 DisplayP.1 7202 Display (Rear Switch) ................................................................................................ P-2P.2 7202 Display (No External Switch)..................................................................................... P-3P.3 PCB Assembly ................................................................................................................... P-6P.4 Swivel Arm Assembly ......................................................................................................... P-8

Alphabetical and Numerical Parts IndexAlphabetical Parts Index ...................................................................................................Index-1Numerical Parts Index ....................................................................................................Index-39

Contents

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xviii

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066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xix

FIGURES

Figure 1-1. 7200 Series Ventilatory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Figure 1-2. Enhanced-Plus Keyboard Controls and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23Figure 1-3. Enhanced Keyboard Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25Figure 1-4. Basic Keyboard Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27Figure 1-5. Ventilator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29Figure 2-1. Pneumatic System Diagram (Internal Exhalation Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Figure 2-2. Pneumatic system Diagram (External Exhalation Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7Figure 2-3. Wall Gas Supply System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Figure 2-4. Wall Gas Supply System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10Figure 2-5. Motor Compressor System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11Figure 2-6. Motor Compressor System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13Figure 2-7. Flow Control System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Figure 2-8. Flow Control System Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Figure 2-9. Safety Valve System Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17Figure 2-10. Safety Valve System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18Figure 2-11. Patient System Diagram (Sheet 1 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20Figure 2-12. Patient System Diagram (Sheet 2 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21Figure 2-13. Patient System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22Figure 2-14. Exhalation System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23Figure 2-15. Exhalation System Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25Figure 2-16. PEEP/CPAP System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26Figure 2-17. PEEP/CPAP System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29Figure 2-18. ac Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33Figure 2-19. Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34Figure 2-20. +5 V Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35Figure 2-21. +10 V Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36Figure 2-22. +12 V Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37Figure 2-23. 15 V Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38Figure 2-24. Battery Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39Figure 2-25. 80188 CPU PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43Figure 2-26. 8088 CPU PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45Figure 2-27. Memory PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47Figure 2-28. DCI-Display Controller PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49Figure 2-29. Display Controller PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51Figure 2-30. Front Panel Display PCB Block Diagram (Enhanced-Plus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-54Figure 2-31. Front Panel Display PCB Block Diagram (Enhanced). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55Figure 2-32. Front Panel Display PCB Block Diagram (Basic) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56Figure 2-33. Conversion PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58Figure 2-34. Interface PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63Figure 2-35. Pulse Oximetry PCB Assembly Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-67Figure 2-36. Absorption Factors in Pulse Oximetry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-68Figure 2-37. Mandatory Inspiration with 50% O2, Wall Air, and Nebulizer Inactive . . . . . . . . . . . . . . . . . . . 2-73Figure 2-38. Spontaneous Inspiration with 70% O2, Wall Air, and Nebulizer Active. . . . . . . . . . . . . . . . . . . 2-75

Figures

xx 7200 Series Ventilator System Service Manual 066317 Rev. A (03/04)

Figure 2-39. Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-76Figure 2-40. Flow of Mixed Gas from PSOL1 and PSOL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-77Figure 2-41. Nebulizer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-78Figure 2-42. Exhalation with Compressor Active and Nebulizer Inactive . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-79Figure 2-43. Exhalation System Operation (Internal Exhalation Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-80Figure 2-44. Exhalation System Operation (External Exhalation Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-80Figure 2-45. PEEP Operation during Exhalation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-81Figure 2-46. Keyboard Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-83Figure 2-47. 20-Character Display Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-84Figure 2-48. Numeric Display Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-84Figure 2-49. LED Indicator Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-86Figure 2-50. Alarm Summary Display Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-88Figure 2-51. Audio Alarm Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-89Figure 2-52. Analog Meter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-90Figure 2-53. Nurse Call Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-92Figure 2-54. A/D Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-93Figure 2-55. Proportional Solenoid Valve Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-95Figure 2-56. Bus Timeout Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-96Figure 2-57. Power Failure Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-99Figure 2-58. Watchdog Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-101Figure 2-59. Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-103Figure 2-60. Back-up Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-105Figure 2-61. Safety Valve Open Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-108Figure 2-62. Wall Air-to-Compressor Switchover (Sheet 1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-109Figure 2-62. Wall Air-to-Compressor Switchover (Sheet 2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-110Figure 3-1. Configuration Message Definitions (Ventilators with DCI Option). . . . . . . . . . . . . . . . . . . . . . . .3-3Figure 3-2. Location of DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3Figure 3-3. DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5Figure 3-4. Installing 7202 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6Figure 3-5. Connecting 7202 Display Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7Figure 3-6. Analog Output Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8Figure 3-7. Installing Pulse Oximetry Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9Figure 3-8. Installing Flex Arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11Figure 4-1. Elapsed Time Meter (ETM) Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2Figure 4-2. Checking Resistance of Main Flow or Exhalation Bacteria Filter Using Ventilator . . . . . . . . . . . . .4-3Figure 4-3. Checking Resistance of Bacteria Filter Using Metered Air Source . . . . . . . . . . . . . . . . . . . . . . . . .4-4Figure 4-4. Removing Electronics Compartment Cooling Fan Filter (Removable Louver Panel) . . . . . . . . . . .4-5Figure 4-5. Removing Electronics Compartment Cooling Fan (One-Piece Left-Hand Panel) . . . . . . . . . . . . .4-6Figure 4-6. Removing Compressor Compartment Cooling Fan Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7Figure 5-2. LED Indicators on the 80188 CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3Figure 5-3. LED Indicators on the 8088 CPU PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3Figure 5-4. Location of EST Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7Figure 5-5. 7202 Display during Total EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8Figure 5-6. 7202 Display during Quick EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8Figure 5-8. Enhanced-Plus Keyboard Controls and Indicators Used in EST . . . . . . . . . . . . . . . . . . . . . . . . .5-11Figure 5-9. Enhanced Keyboard Controls and Indicators Used in EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11Figure 5-10. Basic Keyboard Controls and Indicators Used in EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12Figure 5-11. EST Status Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16Figure 7-1. Connecting the PTS 2000 and Computer

Figures

066317 Rev. A (03/04) 7200 Series Ventilator System Service Manual xxi

(if using BreathLab PTS software) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7