Aisys Technical Reference Manual April 2010

Aisys Datex-Ohmeda, Inc., a General Electric Company, doing business as GE Healthcare. Datex-Ohmeda products have unit serial numbers with coded logic which indicates a product group code, the year of manufacture, and a sequential unit number for identification. The serial number can be in one of two formats. A AA X 11111

AAA XX 111111AA

The X represents an alpha character The XX represents a number indicating indicating the year the product was the year the product was manufactured; manufactured; H = 2004, J = 2005, etc. 04 = 2004, 05 = 2005, etc. I and O are not used.

Aisys and Aladin2 are registered trademarks of Datex-Ohmeda, Inc. Other brand names or product names used in this manual are trademarks or registered trademarks of their respective holders.

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M1046983

Technical Reference Manual

Aisys Anesthesia Machine

This document is not to be reproduced in any manner, nor are the contents to be disclosed to anyone, without the express authorization of the product service department, Datex-Ohmeda, Ohmeda Drive, PO Box 7550, Madison, Wisconsin, 53707.

© 2010 Datex-Ohmeda Inc. M1046983 04/10

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Important The information contained in this Technical Reference manual pertains only to those models of products which are marketed by Datex-Ohmeda as of the effective date of this manual or the latest revision thereof. This Technical Reference manual was prepared for exclusive use by Datex-Ohmeda service personnel in light of their training and experience as well as the availability to them of parts, proper tools and test equipment. Consequently, Datex-Ohmeda provides this Technical Reference manual to its customers purely as a business convenience and for the customer's general information only without warranty of the results with respect to any application of such information. Furthermore, because of the wide variety of circumstances under which maintenance and repair activities may be performed and the unique nature of each individual's own experience, capacity, and qualifications, the fact that customer has received such information from Datex-Ohmeda does not imply in any way that Datex-Ohmeda deems said individual to be qualified to perform any such maintenance or repair service. Moreover, it should not be assumed that every acceptable test and safety procedure or method, precaution, tool, equipment or device is referred to within, or that abnormal or unusual circumstances, may not warrant or suggest different or additional procedures or requirements. This manual is subject to periodic review, update and revision. Customers are cautioned to obtain and consult the latest revision before undertaking any service of the equipment. Comments and suggestions on this manual are invited from our customers. Send your comments and suggestions to the Manager of Technical Communications, Datex-Ohmeda, Ohmeda Drive, PO Box 7550, Madison, Wisconsin 53707.

w CAUTION

Servicing of this product in accordance with this Technical Reference manual should never be undertaken in the absence of proper tools, test equipment and the most recent revision to this service manual which is clearly and thoroughly understood.

Technical Competence The procedures described in this Technical Reference manual should be performed by trained and authorized personnel only. Maintenance should only be undertaken by competent individuals who have a general knowledge of and experience with devices of this nature. No repairs should ever be undertaken or attempted by anyone not having such qualifications. Datex-Ohmeda strongly recommends using only genuine replacement parts, manufactured or sold by Datex-Ohmeda for all repair parts replacements. Read completely through each step in every procedure before starting the procedure; any exceptions may result in a failure to properly and safely complete the attempted procedure.

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Table of Contents

Important...ii Technical Competence...ii

1 Introduction 1.1 What this manual includes...1-2 1.2 User’s Reference manuals...1-2 1.3 Overview...1-3 1.4 Anesthesia system components...1-4 1.5 Breathing system components...1-6 1.5.1 Optional system components... 1-7 1.6 Display controls...1-8 1.7 Anesthesia system display...1-9 1.7.1 Using menus... 1-11 1.8 Symbols used in the manual or on the equipment... 1-12

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Aisys 2 Theory of Operation 2.1 Electrical system...2-2 2.2 Power subsystem...2-4 2.2.1 U-Frame Power Supply...2-5 2.2.2 Power Controller board overview...2-5 2.2.3 Power distribution...2-6 2.2.4 Power Controller Board...2-7 2.3 Display Unit... 2-10 2.4 System communications... 2-11 2.4.1 Software Power On Self Tests (POST)... 2-12 2.5 System connections... 2-14 2.5.1 Display Unit... 2-14 2.5.2 Display Connector board... 2-14 2.6 Power Controller and Anesthesia Control board connections... 2-15 2.7 Anesthesia Control board... 2-16 2.7.1 Overview... 2-16 2.7.2 Anesthesia Control Board details... 2-18 2.8 Ventilator Interface board... 2-22 2.9 Electronic Gas Mixer... 2-24 2.9.1 Electronic Gas Mixer (details)... 2-26 2.10 Electronic Vaporizer... 2-28 2.10.1 Agent cassette... 2-28 2.10.2 Electronic Vaporizer subsystem (eVap)... 2-30 2.10.3 Agent Delivery board LED indicators... 2-34 2.10.4 Et Control... 2-36 2.11 Gas flow through the anesthesia machine... 2-38 2.11.1 Overview... 2-38 2.11.2 Electronic vaporizer... 2-40 2.11.3 Physical connections (O2 supply)... 2-44 2.11.4 Physical connections (N2O and Air supplies)... 2-45 2.11.5 Suction regulators... 2-46 2.12 Flow through the breathing system... 2-47 2.12.1 Overview of flow paths... 2-47 2.12.2 Manual ventilation... 2-48 2.12.3 Mechanical ventilation... 2-51 2.12.4 Fresh gas and O2 flush flow (with SCGO)... 2-58 2.12.5 Fresh gas and O2 flush flow (with ACGO)... 2-60

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Table of Contents 2.13 Ventilator mechanical subsystems... 2-62 2.13.1 Drive gas filter and Gas Inlet Valve... 2-62 2.13.2 Pressure regulator... 2-63 2.13.3 Flow control valve... 2-63 2.13.4 Drive Gas Check Valve (DGCV)... 2-64 2.13.5 Bellows Pressure Relief Valve... 2-64 2.13.6 Exhalation valve... 2-65 2.13.7 Mechanical Overpressure Valve... 2-66 2.13.8 Reservoir and bleed resistor... 2-66 2.13.9 Free breathing valve... 2-67 2.13.10 Breathing circuit flow sensors... 2-68

3 Checkout Procedure 3.1 Inspect the system...3-2 3.2 System checkout...3-2 3.2.1 Leak < 250 ml...3-2 3.2.2 Machine Check...3-3 3.2.3 Machine Check - System (Ventilator Circuit Testing)...3-3 3.2.4 Machine Check - Circuit (Bag Circuit Testing)...3-4 3.2.5 Machine Check - Circuit O2...3-4 3.2.6 Machine Check - Monitor...3-4 3.3 Individual Checks...3-5 3.3.1 System...3-5 3.3.2 Circuit...3-6 3.3.3 Circuit O2 Cell...3-6 3.3.4 Low P Leak...3-6 3.3.5 Low P Leak (machines with ACGO)...3-7 3.3.6 Agent Delivery...3-7 3.4 Bellows drop test...3-8 3.5 Backlight test...3-8 3.6 Pipeline and cylinder tests...3-9 3.6.1 O2 supply alarm test...3-9 3.7 Flush Flow Test... 3-10 3.8 Alarm tests... 3-11 3.9 Alternate O2 flowmeter tests... 3-12 3.10 Auxiliary O2 flowmeter tests... 3-12 3.11 Integrated Suction Regulator tests... 3-12 3.12 Power failure test... 3-13 3.13 Electrical safety tests... 3-13

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Aisys 4a Install/Service Menus (SW 4.X) 4a.1 Service and Installation menu structure...4a-2 4a.2 Install/Service Menu (Super User)...4a-3 4a.2.1 Trends Setup...4a-5 4a.2.2 Colors and Units Menu...4a-6 4a.2.3 Cumulative Usage...4a-7 4a.2.4 Factory Defaults...4a-8 4a.2.5 Parameter Settings... 4a-10 4a.2.6 Fresh Gas Controls... 4a-10 4a.2.7 VCV Cardiac Bypass... 4a-10 4a.3 Installation Menu... 4a-11 4a.3.1 Configuration... 4a-12 4a.3.2 Configuration Units... 4a-13 4a.3.3 Options Key... 4a-13 4a.3.4 Copy Configuration... 4a-14 4a.4 Service Menu... 4a-15 4a.4.1 Software/Hardware Ver Menu... 4a-16 4a.4.2 Service Log Menu... 4a-17 4a.5 Calibration... 4a-18 4a.5.1 Spiro Calibration... 4a-19 4a.5.2 User Calibration menu... 4a-20 4a.5.3 Manifold P Span... 4a-21 4a.5.4 Inspiratory Flow Valve... 4a-22 4a.5.5 Bleed Resistor... 4a-23 4a.5.6 Paw Span... 4a-24 4a.5.7 Zero Gas Xducrs... 4a-25 4a.5.8 Cal Config... 4a-26 4a.5.9 Mixer P Zero... 4a-27

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Table of Contents 4b Install/Service Menus (SW ≥6.X) 4b.1 Service and Installation menu structure... 4b-2 4b.2 Installation Menu... 4b-3 4b.2.1 Configuration... 4b-4 4b.2.2 Configuration Units... 4b-5 4b.2.3 Options Key... 4b-5 4b.2.4 Copy Configuration... 4b-6 4b.3 Service Menu... 4b-7 4b.3.1 Software/Hardware Ver Menu... 4b-8 4b.3.2 Service Log Menu... 4b-9 4b.4 Calibration... 4b-10 4b.4.1 Spiro Calibration... 4b-11 4b.4.2 User Calibration menu... 4b-12 4b.4.3 Manifold P Span... 4b-13 4b.4.4 Inspiratory Flow Valve... 4b-14 4b.4.5 Bleed Resistor... 4b-15 4b.4.6 Paw Span... 4b-16 4b.4.7 Zero Gas Xducrs... 4b-17 4b.4.8 Cal Config... 4b-18 4b.4.9 Mixer P Zero... 4b-19

5 Calibration 5.1 Primary Regulators...5-2 5.1.1 Test setup...5-3 5.1.2 Testing Primary Regulators...5-3 5.1.3 Adjusting Primary Regulators...5-8 5.2 O2 Flush Regulator...5-9 5.3 Adjust Drive Gas Regulator... 5-10 5.4 Ventilator Calibrations... 5-11 5.4.1 Cal Config... 5-11 5.4.2 Manifold P Span... 5-12 5.4.3 Inspiratory Flow Valve Cal... 5-14 5.4.4 Bleed Resistor Cal... 5-16 5.4.5 Paw Span... 5-18

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Aisys 6 Installation and Maintenance 6.1 Aisys Installation Checklist...6-2 6.2 Aisys Planned Maintenance...6-4 6.2.1 Every twelve (12) months...6-4 6.2.2 Every twenty-four (24) months...6-5 6.2.3 Every forty-eight (48) months...6-5 6.3 Free breathing valve maintenance...6-6 6.4 MOPV pressure relief valve test...6-7 6.4.1 Test setup...6-7 6.4.2 Test procedure...6-7 6.5 Pressure Limit Circuit test...6-8 6.6 Mixer test... 6-10 6.6.1 Mixer outlet check valve leak test... 6-10 6.6.2 Mixer flow verification... 6-10 6.7 Alternate O2 flowmeter tests... 6-12 6.8 Auxiliary O2 flowmeter tests... 6-13 6.9 Integrated Suction Regulator tests... 6-14 6.10 Battery capacity test... 6-16 6.11 Cable routing, upper module rack... 6-17 6.11.1 Display Unit and Anesthesia Monitor... 6-18 6.11.2 Display arm... 6-18 6.11.3 Left-side cable route... 6-19 6.11.4 Upper left-side cable route... 6-19 6.11.5 Front side of Display Connector Board... 6-19 6.11.6 Upper module rack... 6-20 6.11.7 Rear cosmetic panel... 6-20 6.11.8 Additional cable access points to upper chassis... 6-20 6.12 Cable routing, lower module rack... 6-21 6.12.1 Display Unit and Anesthesia Monitor... 6-22 6.12.2 Display arm... 6-22 6.12.3 Left-side cable route... 6-23 6.12.4 Front side of Display Connector Board and lower module rack... 6-23 6.12.5 Rear cable route... 6-24 6.12.6 Right-side cable route... 6-25

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Table of Contents 7 Troubleshooting 7.1 Troubleshooting Guidelines...7-2 7.2 Troubleshooting high pressure and low pressure leaks...7-3 7.3 Troubleshooting Startup Screen (POST) messages - for HPDU...7-4 7.4 Troubleshooting the HPDU Display...7-5 7.5 Breathing System Leak Test Guide...7-6 7.5.1 Check Valves...7-7 7.5.2 Breathing System Troubleshooting Flowcharts... 7-8 7.5.3 Leak Isolation Tests... 7-14 7.7 System Troubleshooting Flowcharts... 7-42 7.8 System Malfunction and Alt O2 Flowchart Table... 7-55 7.9 Electronic Vaporizer (eVap) Troubleshooting... 7-57 7.9.1 Vaporizer Test Results... 7-57 7.9.2 Vaporizer Test Results troubleshooting procedures... 7-58 7.9.3 eVap Troubleshooting Flowchart... 7-62 7.9.4 eVap Error Log table... 7-63 7.9.5 eVap Flow and Zero troubleshooting... 7-64 7.9.6 eVap Pressure troubleshooting... 7-65 7.9.7 eVap Leak and Cassette troubleshooting... 7-66 7.9.8 eVap Communication troubleshooting... 7-67 7.9.9 eVap ADB troubleshooting... 7-68 7.9.10 eVap Temperature troubleshooting... 7-69 7.9.11 eVap Power and Valves troubleshooting... 7-70 7.9.12 Electronic vaporizer 10VA power interconnect fault isolation... 7-71 7.9.13 Vaporizer Checkout Troubleshooting... 7-72 7.10 eVap Therapy Cassette Leak Test... 7-76 7.11 eVap Backpressure Valve Test... 7-77 7.12 eVap Inflow Check Valve Test... 7-79 7.13 eVap Scavenger Path Testing... 7-81 7.14 Technical Alarms... 7-82 7.15 Steps and Messages displayed during the System Checkout... 7-118 7.15.1 Machine Check - System... 7-118 7.15.2 Machine Check - Circuit... 7-121 7.16 Et Control Troubleshooting... 7-122 7.17 M-Gas Communication Dropout Troubleshooting... 7-123 7.17.1 Technical Bulletin MS HKI 06 010 (reproduced)... 7-124 7.18 VIB Pneumatic Sense Tubing Leak Test... 7-126 7.19 Flow Sensor Accuracy Test... 7-127

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Aisys 8 Software Download and Special Functions 8.1 Overview...8-2 8.1.1 Main Menu and System Information...8-2 8.2 Software Download...8-3 8.3 Special Functions...8-5 8.3.1 Display Diagnostics...8-6 8.3.2 Test Keys and Battery...8-7 8.3.3 System Download Log...8-8

9 Repair Procedures 9.1 Circuit board replacement precautions...9-4 9.2 KEY/BID label (Key Code)...9-5 9.3 How to bleed gas pressure from the machine...9-6 9.4 How to remove the rear panels...9-7 9.4.1 To remove the rear upper panels...9-7 9.4.2 To remove the lower access panels...9-7 9.5 How to remove the tabletop...9-8 9.6 Servicing the pan electrical enclosure components...9-9 9.6.1 Ventilator Interface board...9-9 9.6.2 Electronic Gas Mixer assembly... 9-10 9.7 How to access dashboard components... 9-11 9.8 Replace electronic vaporizer and components... 9-12 9.8.1 Remove the electronic vaporizer... 9-13 9.8.2 Replacing eVap components... 9-14 9.9 Servicing Aladin2 cassettes... 9-17 9.9.1 Emptying an Aladin2 cassette... 9-17 9.9.2 Aladin2 cassette parts replacement... 9-18 9.10 Replace Alt O2 components... 9-21 9.11 Replace system switch assembly... 9-22 9.11.1 Install replacement switch... 9-22 9.12 Servicing the High Performance Display Unit... 9-24 9.12.1 Remove the Display Unit... 9-24 9.12.2 Disassemble the Display Unit... 9-25 9.12.3 CPU Fan... 9-25 9.12.4 To replace the CPU board... 9-26 9.12.5 To replace the LCD display... 9-27 9.12.6 To replace the backlights... 9-29 9.12.7 To replace the Inverters... 9-30 9.12.8 To replace the front enclosure or components... 9-31 x

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Table of Contents 9.13 Servicing the lower electrical enclosure components... 9-33 9.13.1 Power Controller board... 9-33 9.13.2 Power Supply... 9-34 9.13.3 Anesthesia Control board... 9-35 9.13.4 Backup batteries... 9-36 9.14 Servicing the Vent Engine... 9-37 9.14.1 To remove the Vent Engine... 9-38 9.14.2 Replacing Vent Engine components... 9-39 9.14.3 Replacing GIV components... 9-40 9.15 Servicing the pipeline inlet manifold components... 9-41 9.15.1 Replace pipeline inlet filter... 9-41 9.15.2 Replace pipeline inlet check valve... 9-41 9.15.3 Replace the inlet manifold... 9-42 9.16 Service the cylinder supply modules... 9-43 9.16.1 Tightening procedure for high-pressure tube fittings... 9-43 9.16.2 Replace primary regulator module (complete replacement)... 9-44 9.16.3 Install elbows on inboard cylinder supplies to reposition the pressure transducers... 9-45 9.16.4 Replace cylinder inlet filter... 9-46 9.16.5 Replace cylinder check valve... 9-46 9.17 Replace gas-supply pressure transducers... 9-47 9.18 Replace ACGO selector switch... 9-48 9.19 Clean or replace ACGO port flapper valve... 9-50 9.20 Replace the APL valve... 9-51 9.21 Replace the bag support arm... 9-52 9.21.1 Servicing the bag support arm... 9-53 9.21.2 Replace bag port housing... 9-54 9.22 Replace the canister release (CO2 bypass) switch... 9-55 9.23 Replace ABS breathing system components... 9-56 9.23.1 Replace Bag/Vent switch assembly... 9-56 9.23.2 Replace bellows base latch assembly... 9-57 9.23.3 EZchange Canister spring replacement... 9-58 9.24 Replace casters... 9-59 9.25 Reconfigure sample gas return line... 9-60 9.26 Change drive gas... 9-61 9.27 Display arm adjustments... 9-62 9.27.1 Display arm counterbalance adjustment... 9-62 9.27.2 Wrist Casting adjustment... 9-63 9.27.3 Clutch bearing adjustment... 9-63

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Aisys 10 Illustrated Parts 10.1 Service tools... 10-3 10.1.1 Software tools... 10-3 10.1.2 Manifold pressure test adapter... 10-3 10.1.3 Canister release switch (CO2 bypass) spacer tool... 10-3 10.1.4 Test Devices and service tools... 10-4 10.1.5 Lubricants and Adhesives... 10-4 10.1.6 Test Tools... 10-5 10.2 Components - front view... 10-6 10.3 Components - front view references... 10-7 10.4 Components - rear view... 10-8 10.5 AC Power cords and AC Inlet... 10-9 10.6 AC Inlet/Outlet Components... 10-10 10.7 Lower electronic enclosure components... 10-12 10.8 Upper (pan) electronic enclosure components... 10-13 10.9 Electronic Gas Mixer... 10-14 10.10 Pipeline inlet fittings... 10-15 10.11 Cylinder Gas Supplies... 10-16 10.11.1 Power outlets and third cylinder high-pressure hoses... 10-17 10.11.2 Cylinder inlet fittings... 10-18 10.12 ABS to machine Interface Components (SCGO)... 10-19 10.13 ABS to machine Interface Components (ACGO)... 10-20 10.14 O2 Flush Valve... 10-21 10.15 Front panel, Alt O2, and system switch... 10-22 10.16 Vent Engine Housing... 10-23 10.17 Vent Engine... 10-24 10.17.1 Vent Engine - under side... 10-25 10.18 Integrated Suction Regulator... 10-26 10.18.1 Components... 10-26 10.18.2 Suction Control Module... 10-27 10.18.3 Venturi assembly... 10-28 10.19 Auxiliary O2 Flowmeter and Sample Gas Return... 10-29 10.20 Rear panel components... 10-30 10.21 Panels, rear... 10-31 10.22 Panel, cosmetic upper right-side... 10-32 10.23 Panel, cosmetic lower right-side... 10-33 10.24 Panel, cosmetic upper left-side... 10-34 10.25 Panel, cosmetic lower left-side... 10-35

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Table of Contents 10.26 Electronic Vaporizer... 10-36 10.26.1 Electronic Vaporizer Agent Delivery... 10-37 10.26.2 Electronic Vaporizer - Valve Block... 10-38 10.26.3 Electronic Vaporizer - Flowmeter Assembly... 10-39 10.27 Aladin2 Cassette Components... 10-40 10.28 Anesthetic Gas Scavenging System - AGSS... 10-42 10.28.1 Passive AGSS... 10-42 10.28.2 Adjustable AGSS... 10-44 10.28.3 Active AGSS... 10-46 10.29 Tabletop components... 10-48 10.30 Legris quick-release fittings... 10-49 10.31 Vent Drive and low-pressure tubing... 10-50 10.32 Tubing for use with Legris fittings (O2 supplies)... 10-52 10.33 Tubing for use with Legris fittings (3rd cylinder)... 10-54 10.34 Tubing for use with Legris fittings (Air and N2O supplies)... 10-56 10.35 Cables and harnesses... 10-58 10.36 Cables and harnesses in lower electronic enclosure... 10-60 10.37 Cables and harnesses in Pan enclosure... 10-62 10.38 Airway module (M-Gas) components... 10-64 10.39 Breathing system interface... 10-65 10.40 Breathing System... 10-66 10.40.1 Bag/Vent Switch... 10-66 10.41 APL Valve... 10-67 10.41.1 Absorber canister... 10-68 10.41.2 Flow Sensor Module... 10-69 10.41.3 Breathing Circuit Module... 10-70 10.41.4 Exhalation valve... 10-71 10.41.5 Bellows... 10-72 10.41.6 Bellow base... 10-73 10.41.7 Bag Arms... 10-74 10.41.8 EZchange Canister system (CO2 Bypass)... 10-75 10.41.9 Condenser... 10-76 10.42 High Performance Display Unit (HPDU)... 10-78 10.43 Display arm... 10-80 10.43.1 Display arm shroud and covers... 10-81 10.44 Wrist casting assembly mounting... 10-82 10.44.1 Wrist casting assembly... 10-83 10.44.2 Wrist casting bearing caps... 10-84

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Aisys 10.45 Display mounting solutions... 10-85 10.45.1 Default mounting (DU only - no monitors)... 10-85 10.45.2 DU with 12-inch monitor (horizontal) option 1011-8361-000... 10-85 10.45.3 DU with 15- or 17-inch monitor (horizontal) option 1011-8363-000... 10-86 10.45.4 DU with 12-, 15-, or 17-inch monitor (vertical) option 1011-8367-000 . . 10-86 10.46 Components - upper bay... 10-87 10.47 Drawer packs... 10-88 10.47.1 Drawer pack hardware... 10-89 10.47.2 Drawers... 10-90 10.47.3 Storage bay and lower rack... 10-91 10.47.4 Clipboard... 10-92 10.47.5 Cable raceway... 10-93 10.48 Side handle and flip-up shelf... 10-94 10.49 Outboard cylinder mount... 10-95

11 Schematics and Diagrams 12 Service Application 12.1 Aisys Service Application (PC based)... 12-2 12.1.1 PC Requirements... 12-2 12.2 Startup screen - System Status... 12-3 12.3 System Schematics... 12-4 12.3.1 Power Schematic... 12-4 12.3.2 Gas Delivery Schematic... 12-5 12.3.3 Vent Schematic... 12-6 12.3.4 Vaporizer Schematic... 12-7 12.4 Menu Items... 12-8 12.5 File menu... 12-9 12.5.1 File - Preferences... 12-9 12.6 Tools menu... 12-10 12.6.1 Tools - Communication Status... 12-10 12.6.2 Tools - System Calibrations... 12-11 12.6.3 Tools - Transfer Logs... 12-12 12.7 Power Diagnostics menu... 12-13 12.7.1 Power Diagnostics - Power Board... 12-13 12.7.2 Power Diagnostics - Anesthesia Control Board Power... 12-14 12.7.3 Power Diagnostics - Mixer Board Power... 12-15 12.7.4 Power Diagnostics - Vent Interface Board Power... 12-16 12.7.5 Power Diagnostics - Display Unit Power... 12-17 12.7.6 Power Diagnostics - Vaporizer Power... 12-18 xiv

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Table of Contents 12.8 Gas Delivery Subsystem menu... 12-19 12.8.1 Gas Delivery Subsystem - Gas Supply Status... 12-19 12.8.2 Gas Delivery Subsystem - Mixer Output... 12-20 12.8.3 Gas Delivery Subsystem - Mixer Pressure and Temperature... 12-21 12.8.4 Gas Delivery Subsystem - Gas Delivery Status... 12-22 12.8.5 Gas Delivery Subsystem - Mixer Post/Checkout Test Results... 12-23 12.8.6 Gas Delivery Subsystem - Perform Mixer Tests... 12-24 12.9 Vent Subsystem menu... 12-26 12.9.1 Vent Subsystem - Vent Status... 12-26 12.9.2 Vent Subsystem - Vent Flow and Pressure... 12-27 12.10 Vaporizer Subsystem menu... 12-28 12.10.1 Vaporizer Subsystem - Vaporizer Output... 12-28 12.10.2 Vaporizer Subsystem - Perform Vaporizer Test... 12-29 12.11 Gas Monitor menu... 12-30 12.11.1 Gas Monitor Service... 12-30 12.11.2 Et Control (FGM) test procedure... 12-31 12.12 Window menu... 12-32 12.13 Help menu... 12-32

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Notes

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1 Introduction

In this section

This section provides a general overview of the Aisys anesthesia machine. 1.1 What this manual includes...1-2 1.2 User’s Reference manuals...1-2 1.3 Overview...1-3 1.4 Anesthesia system components...1-4 1.5 Breathing system components...1-6 1.5.1 Optional ABS components... 1-7 1.6 Display controls...1-8 1.7 Anesthesia system display...1-9 1.7.1 Using menus... 1-11 1.8 Symbols used in the manual or on the equipment... 1-12

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Aisys

1.1 What this manual includes This manual covers the service information for the Aisys line of anesthesia machines. It covers the following components: • Display Unit • Integral electronics • Gas delivery components • Electronic vaporization • Breathing system components • Frame component • Optional suction regulator • Optional auxiliary O2 flowmeter

Other equipment

Other equipment may be attached to the system on a display mount, the top shelf, or on the side dovetail rails. Consult separate documentation relative to these items for details.

1.2 User’s Reference manuals Some sections of this manual refer you to the User’s Reference manual for the Aisys anesthesia system. To expedite repairs, you must have, and be familiar with, the User’s Reference manuals for this product. Refer to the Aisys anesthesia system User’s Reference manual if you need further information about the operation of the system.

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