Mindray Gas Module User manual

Download

Service Manual Addendum

Gas Module II

™

Gas Module SE

™

Gas Module SE™ with Spirometry Gas Module 3

Service Manual Addendum

Gas Module II

™

Gas Module SE

™

Gas Module SE™ with Spirometry Gas Module 3

AION™ is a trademark of Artema Medical AB.

™

D-Lite

is a trademark of GE Medical Systems Information Technologies.

DRYLINE

™

is a trademark of Artema Medical AB.

Gas Module II

Gas Module SE

™

Nafion

Passport

Passport 2

Spectrum

is a trademark of Perma Pure Inc.

XG is a U.S. registered trademark of Mindray DS USA, Inc.

is a U.S. registered trademark of Mindray DS USA, Inc.

Spectrum OR

is a U.S. registered trademark of Mindray DS USA, Inc.

™

is a U.S. trademark of Mindray DS USA, Inc.

™

is a U.S. trademark of Mindray DS USA, Inc.

0070-10-0522 Gas Module Service Manual Addendum

Table of Contents

Introduction.................................................................................................................................................... v

Warnings, Precautions and Notes.....................................................................................................................vi

Warnings ......................................................................................................................................................vi

Cautions ........................................................................................................................................................ vii

Theory Of Operation......................................................................................................... 1 - 1

Gas Sampling System...................................................................................................................................... 1 - 2

Water Trap............................................................................................................................................. 1 - 3

Zero Valve and Absorber ......................................................................................................................... 1 - 4

™

Nafion

Tube ......................................................................................................................................... 1 - 4

Gas Analyzers ........................................................................................................................................ 1 - 4

Sample Flow Differential Pressure Transducer .............................................................................................. 1 - 4

Working Pressure Transducer.................................................................................................................... 1 - 4

Pneumatic Unit ........................................................................................................................................ 1 - 4

Connection Block..................................................................................................................................... 1 - 4

Occlusion Valve ...................................................................................................................................... 1 - 5

Sampling Pump and Damping Chamber..................................................................................................... 1 - 5

Anesthetic Agent Sensor .................................................................................................................................. 1 - 6

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 1 - 6

Gas Module 3 ........................................................................................................................................ 1 - 8

Sensor ..................................................................................................................................................... 1 - 11

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 1 - 11

Gas Module 3 ........................................................................................................................................ 1 - 12

CPU Board..................................................................................................................................................... 1 - 14

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 1 - 14

Gas Module 3 ........................................................................................................................................ 1 - 15

Board ...................................................................................................................................................... 1 - 16

Communication Interface Board........................................................................................................................ 1 - 17

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 1 - 17

Gas Module 3 ........................................................................................................................................ 1 - 18

Electrical Wiring Diagram................................................................................................................................ 1 - 19

Gas Module 3 Electronics ................................................................................................................................ 1 - 20

Power Supply ................................................................................................................................................. 1 - 22

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 1 - 22

Gas Module 3 ........................................................................................................................................ 1 - 23

Spirometry (Gas Module SE with Spirometry Only) Overview ............................................................................... 1 - 24

Measured Parameters .............................................................................................................................. 1 - 24

Measurement Principles............................................................................................................................ 1 - 25

PVX Measuring Unit ................................................................................................................................. 1 - 25

Specifications.................................................................................................................... 2 - 1

Performance Specifications .............................................................................................................................. 2 - 2

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 2 - 2

Gas Module 3 ........................................................................................................................................ 2 - 3

Gas Measurements ......................................................................................................................................... 2 - 6

Normal Conditions .................................................................................................................................. 2 - 6

Non-disturbing Gases .............................................................................................................................. 2 - 6

Disturbing Gases ..................................................................................................................................... 2 - 7

Gas Module 3 Interference Specifications................................................................................................... 2 - 7

...................................................................................................................................................... 2 - 8

......................................................................................................................................................... 2 - 9

O...................................................................................................................................................... 2 - 10

Anesthetic Agents .................................................................................................................................... 2 - 10

Accuracy specifications at conditions exceeding normal............................................................................... 2 - 12

Gas Module Service Manual Addendum 0070-10-0522 i

Table of Contents

ISO Mode Accuracy specifications for Gas Module 3 .................................................................................. 2 - 13

Patient Spirometry........................................................................................................................................... 2 - 15

Normal Conditions for Gas Module SE with Spirometry ............................................................................... 2 - 15

Accuracy specifications at conditions exceeding normal............................................................................... 2 - 16

Power Input Ratings......................................................................................................................................... 2 - 17

Environmental Conditions................................................................................................................................. 2 - 17

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 2 - 17

Gas Module 3 ........................................................................................................................................ 2 - 17

Physical Characteristics ................................................................................................................................... 2 - 18

Gas Module II......................................................................................................................................... 2 - 18

Gas Module SE....................................................................................................................................... 2 - 18

Gas Module 3 ........................................................................................................................................ 2 - 18

Agency Compliance........................................................................................................................................ 2 - 18

Gas Module II......................................................................................................................................... 2 - 18

Gas Module SE....................................................................................................................................... 2 - 19

Gas Module 3 ........................................................................................................................................ 2 - 19

Repair Information ........................................................................................................... 3 - 1

Introduction.................................................................................................................................................... 3 - 1

Safety Precautions........................................................................................................................................... 3 - 2

Troubleshooting .............................................................................................................................................. 3 - 2

General Troubleshooting Guidelines .......................................................................................................... 3 - 2

Gas Module Technical Troubleshooting ...................................................................................................... 3 - 3

Patient Spirometry Trouble Shooting........................................................................................................... 3 - 6

Exchange Program .................................................................................................................................. 3 - 7

Equipment and Special Tools Required .............................................................................................................. 3 - 8

Disassembly Instructions................................................................................................................................... 3 - 9

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 3 - 9

Gas Module 3 ........................................................................................................................................ 3 - 12

Mounting Hardware and Accessories................................................................................................................ 3 - 13

Passport XG/Gas Module Mounting .......................................................................................................... 3 - 13

Expert/Gas Module Mounting................................................................................................................... 3 - 15

Passport 2/Spectrum/Spectrum OR Gas Module Mounting .......................................................................... 3 - 17

Gas Module II/Gas Module SE Accessories ....................................................................................................... 3 - 21

Gas Module SE with Spirometry Accessories ...................................................................................................... 3 - 22

Gas Module 3 Accessories .............................................................................................................................. 3 - 23

Replacement Parts ............................................................................................................ 4 - 1

Introduction.................................................................................................................................................... 4 - 1

Available Replacement Parts and Sub-Assemblies ............................................................................................... 4 - 1

Exchange Program.......................................................................................................................................... 4 - 2

Replacement Parts Pricing Information ............................................................................................................... 4 - 2

Ordering Information ...................................................................................................................................... 4 - 3

Abbreviations................................................................................................................................................. 4 - 4

Isometric Drawing and Parts Lists ...................................................................................................................... 4 - 5

Calibration ....................................................................................................................... 5 - 1

Introduction.................................................................................................................................................... 5 - 1

Warnings and Guidelines................................................................................................................................ 5 - 1

Test Equipment and Special Tools Required........................................................................................................ 5 - 2

Power-Up Verification...................................................................................................................................... 5 - 2

Passport XG Configuration for Gas Module ................................................................................................ 5 - 2

Expert Configuration for Gas Module......................................................................................................... 5 - 3

Passport 2/Spectrum/Spectrum OR Configuration for the Gas Module .......................................................... 5 - 4

Gas Module 3 Pneumatic Leakage Test.............................................................................................................. 5 - 5

ii 0070-10-0522 Gas Module Service Manual Addendum

Table of Contents

Gas Module 3 Zero Reference Valve Test .......................................................................................................... 5 - 5

Calibration..................................................................................................................................................... 5 - 6

Passport XG Gas Calibration .................................................................................................................... 5 - 6

Expert Gas Module Calibration................................................................................................................. 5 - 8

Gas Monitor Calibration - Passport 2/Spectrum/Spectrum OR...................................................................... 5-10

Power Supply PC Board Calibration .......................................................................................................... 5 - 16

Patient Spirometry Calibration Measurement (Spectrum OR only)...................................................................5-18

Patient Spirometry Leak Test Verification (Spectrum OR Only)........................................................................ 5 - 20

Gas Module Leakage Current Checks................................................................................................................ 5 - 21

Preventive Maintenance.................................................................................................... 6 - 1

Preventive Maintenance Introduction ................................................................................................................. 6 - 1

Preventive Maintenance Schedule ..................................................................................................................... 6 - 1

Performance Verification.................................................................................................................................. 6 - 2

Perform as required, or at 6 month intervals................................................................................................ 6 - 2

Perform as required, or 1 Year intervals ..................................................................................................... 6 - 2

Patient Spirometry Leak Test Verification (Spectrum OR Only)........................................................................ 6 - 2

Mechanical / Physical / Visual Inspection ......................................................................................................... 6 - 2

Perform at 6 month intervals...................................................................................................................... 6 - 2

Consumable Item Replacement ......................................................................................................................... 6 - 2

Replace at 1 month intervals ..................................................................................................................... 6 - 2

Replace at 2 month intervals ..................................................................................................................... 6 - 2

Replace at 12 month intervals ................................................................................................................... 6 - 2

Replace at 24 month intervals ................................................................................................................... 6 - 2

Internal Adjustments/Calibration....................................................................................................................... 6 - 3

Perform at 12 month intervals or as required............................................................................................... 6 - 3

Patient Spirometry Calibration Measurement (Spectrum OR only)...................................................................6-3

Care and Cleaning of Gas Module................................................................................................................... 6 - 4

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry ........................................................... 6 - 4

Gas Module 3 ........................................................................................................................................ 6 - 5

Gas Module Service Manual Addendum 0070-10-0522 iii

Table of Contents

This page intentionally left blank.

iv 0070-10-0522 Gas Module Service Manual Addendum

Introduction Introduction

Introduction

The Gas Module is a companion to several Patient Monitors. It is capable of automatically identifying and measuring five anesthetic agents (Desflurane, Enflurane, Sevoflurane, Halothane and Isoflurane), as well as N sidestream sampling.

The following models are referenced in this manual: Gas Module II, Gas Module SE, Gas Module SE with Spirometry, and Gas Module 3. When information is common to all models, the generic name “Gas Module” is used. Information that is unique to a specific model is identified accordingly.

The system connects to the Patient Monitor via an RS232 connector.

A special “Y” shaped power cord is used to supply AC voltage to both the Gas Module and the Monitor power supply. All Gas Module data displays on the monitor screen. All user commands are entered on the monitor and then electronically transmitted to the Gas Module.

This addendum provides Gas Module information on theory of operation, specifications, repair, parts, calibration and preventive maintenance. For related information on the Patient Monitor, refer to the associated Service Manual and Operating Instructions.

O, CO2 and O2. The unit monitors all gases via

• Passport XG Operating Instructions

• Passport 2 Operating Instructions (Domestic)

• Passport 2 Operating Instructions (International)

• Expert Operating Instructions (Domestic)

• Spectrum Operating Instructions (Worldwide)

• Spectrum OR Operating Instructions (Worldwide)

NOTE: The Gas Module SE with Spirometry can only be used with

NOTE: The Gas Module 3 can only be used with Passport 2,

WARNING: Calibration gas is considered Dangerous Goods/Hazardous

the Spectrum OR monitor.

Spectrum, and Spectrum OR monitors.

Materials per I.A.T.A. and D.O.T. Regulations.

It is a violation of federal and international law to offer any package or over pack of dangerous goods for transportation without the package being appropriately identified, packed, marked, classified, labeled and documented according to D.O.T. and I.A.T.A. regulations. Please refer to the applicable I.A.T.A. Dangerous Goods Regulations and/or the Code of Federal Regulations 49 (Transportation, Parts 171-180) for further information.

Gas Module Service Manual Addendum 0070-10-0522 v

Introduction Warnings, Precautions and Notes

Warnings, Precautions and Notes

Please read and adhere to all warnings, precautions and notes listed here and in the appropriate areas throughout this manual.

A WARNING is provided to alert the user to potential serious outcomes (death, injury, or serious adverse events) to the patient or the user.

A CAUTION is provided to alert the user to use special care necessary for the safe and effective use of the device. They may include actions to be taken to avoid effects on patients or users that may not be potentially life threatening or result in serious injury, but about which the user should be aware. Cautions are also provided to alert the user to adverse effects on this device of use or misuse and the care necessary to avoid such effects.

A NOTE is provided when additional general information is applicable.

Warnings

WARNING: Always Remove Power from the Gas Module BEFORE

WARNING: Remove Power from the Gas Module BEFORE removing the

WARNING: If the water trap breaks or becomes damaged during

WARNING: The airway adapter and sampling line are intended for

WARNING: The water trap, sampling line, and airway adapter should

WARNING: To avoid high sampling flow with the Gas Module 3, do not

WARNING: Connect only approved gas sampling lines to the water

WARNING: The Gas Module must not be used with flammable

WARNING: The use of gas sampling accessories other than specified

Disassembly.

Enclosure.

operation, there is a risk that bacteria and/or mucus may contaminate the Gas Module.

single use only.

be disposed of in accordance with local regulations for contaminated and biologically hazardous items.

use Adult/Pediatric water traps and/or sampling lines with neonates.

trap.

anesthetic agents.

may cause significant measurement errors and patient risk.

WARNING: With the Gas Module 3, use only Neonate sampling lines

and water traps for Neonate patients. Do not use Neonate sampling lines and water traps for Adult/Pediatric patients.

WARNING: Do not allow the sampling tubing to become kinked.

WARNING: Do not reuse disposable devices.

vi 0070-10-0522 Gas Module Service Manual Addendum

Cautions Introduction

WARNING: Trace Gas Hazard – When using the optional Gas Module, a

WARNING: When monitoring CO

WARNING: Connection of the Gas Module exhaust port to the hospital’s

WARNING: Equipment not suitable for use in the presence of a

WARNING: Do not connect devices that are not specified as part of the

WARNING: Do not clean the Gas Module while it is on and/or

health hazard exists when trace amounts of vaporized anesthetic agents are chronically inspired by operating room personnel. See Appendix A in NFPA 56A on Inhalation Anesthetics. During any procedure where such agents are employed, the Gas Module exhaust output should be connected to a medical gas-scavenging system.

, connection from the exhaust port to the hospital’s waste gas-scavenging system is recommended to prevent exposure of hospital personnel to the patient’s respiratory sample.

waste gas-scavenging system is recommended to prevent exposure of hospital personnel to the patient’s respiratory sample. Vacuum (negative pressure) should not exceed 1 mmHg at the Gas Module exhaust fitting. Excessive scavenge vacuum may result in damage to the Gas Module’s internal pump.

flammable anesthetic mixture with air or with nitrogen or nitrous oxide.

system.

plugged in.

WARNING: The contents of the water trap should be handled as a

potential infection hazard.

Cautions

CAUTION: The internal sampling system of the Gas Module does not

need to be cleaned or sterilized. There is no reverse flow back to the patient. If the internal sampling system is suspected to be clogged or dirty, the module should be serviced by an authorized service person only.

CAUTION: If the dust filter for the fan cannot be cleaned or is

damaged, replace it with part number 0378-00-0040. Use of another type of filter may decrease the cooling effectivity and cause damage to the Gas Module.

CAUTION: Do not disinfect or open the water trap. Do not touch the

water trap membrane.

CAUTION: Dispose of the water trap in accordance with hospital policy.

Gas Module Service Manual Addendum 0070-10-0522 vii

Introduction Cautions

This page intentionally left blank.

viii 0070-10-0522 Gas Module Service Manual Addendum

1.0

Theory Of Operation

Contents of this chapter .................................................................... Page

1.1 Gas Sampling System ............................................................... 1-2

1.2 Anesthetic Agent Sensor ........................................................... 1-6

1.3 O2 Sensor ................................................................................ 1-11

1.4 CPU Board ................................................................................ 1-14

1.5 O2 Board ................................................................................. 1-16

1.6 Communication Interface Board ................................................ 1-17

1.7 Electrical Wiring Diagram ......................................................... 1-19

1.9 Power Supply ........................................................................... 1-22

1.10 Spirometry (Gas Module SE with Spirometry Only) Overview . 1-24

This Theory of Operation section provides block diagrams, a functional overview of the main components and the gas sampling / measurement principle for the Gas Module.

The Gas Module consists of the following main components:

• Gas Sampling System

• Anesthetic Agent Sensor

Sensor

•O

•CPU Board

•O

Board

• Communications Interface Board

• Power Supply

• Spirometry Module (PVX unit)

• Water Trap

• Internal Tubing

Gas Module Service Manual Addendum 0070-10-0522 1 - 1

Gas Sampling System Theory Of Operation

OUT

REF

Pneumatic unit

Pressure transducers

OUT

Damping chamber

Sampling pump

TPX unit

OUT

Connection block

Wate r trap

OM unit

Nafion tube

CO2 absorber

Nafion tube

1.1 Gas Sampling System

The sampling system draws in a patient sample to the analyzers at a fixed rate.

The gas sampling system draws patient sample into the module, and removes water and impurities from it in a water trap. The pump draws gas through the sampling line, through the water trap and into the gas measuring units. After the measurements, the gas is expelled through the exhaust port. The sample flow rates are as follows:

• For Gas Module II, Gas Module SE, and Gas Module SE with Spirometry, the sample flow rate is 200 ml/min.

• For Gas Module 3, the sample flow rate is 200 ml/min with the Adult/Pediatric water trap and 120 ml/min with the Neonatal water trap.

A number of flow restrictors are utilized to create a pressure difference with ambient pressure in the gas sensors.

A larger pressure difference makes the presentation of the gas concentration curves less sensitive to variations in the airway pressure thus meeting the accuracy requirements.

Refer to the FIGURE 1-1 and FIGURE 1-2 for the Gas Tubing Layout and Gas Sampling Component Block Diagram for Gas Module II, Gas Module SE, and Gas Module SE with Spirometry. Refer to the FIGURE 1-3 for the combination Gas Tubing Layout and Gas Sampling Component Block Diagram for Gas Module 3.

FIGURE 1-1 Gas Tubing Layout – Gas Module II, Gas Module SE, and Gas Module SE

with Spirometry

1 - 2 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Gas Sampling System

Sample

line

Zero

valve

Reference gas

Occlusion

valve

Room air

Pressure

Transducer

Filter

Pressure

Transducer

TPX

Pump

Absorber

Pump

Module

to O2

Sensor

from O2

Sensor

Purge

Sample In

DRYLINE

™

Water Trap

to EVAC

EVAC Outlet Connection

Purge Valve

Zero Valve

Pneumatic

Module

Gas

Measurement

Bench

Servomex

O2 Sensor

Sample

Patient

AION

™

FIGURE 1-2 Gas Sampling Component Block Diagram – Gas Module II, Gas Module SE,

and Gas Module SE with Spirometry

FIGURE 1-3 Combination Gas Tubing Layout and Gas Sampling Component Block

Diagram – Gas Module 3

1.1.1 Water Trap

™

water trap system.

Gas Module Service Manual Addendum 0070-10-0522 1 - 3

The sample is drawn through a sample line. Then gas enters the monitor through the water trap, where it is divided into two flows, a main flow and a side flow. The main flow goes into the analyzers. This flow is separated from the patient side by a hydrophobic filter. The side flow creates a slight subatmospheric pressure within the water trap which causes fluid removed by the hydrophobic filter to collect in the bottle.

The Gas Module 3 uses the DRYLINE

Gas Sampling System Theory Of Operation

1.1.2 Zero Valve and Absorber

The main flow passes through a magnetic valve before proceeding to the analyzers. This valve is activated to establish the zero points for the Anesthetic Agent and O2 Sensors. When the valve is activated, room air is drawn through the absorber into the internal system and the gas sensors. Paralyme is used as the absorbent. The Absorber is for Gas Module II, Gas Module SE, and Gas Module SE with Spirometry.

1.1.3 Nafion™ Tube

A nafion tube is used between the water trap and the zero valve to balance the sample gas humidity with that of ambient air. The tube will prevent errors caused by the effect of water vapor on gas partial pressure when the humid gases are measured after calibration with dry gases.

*Nafion is a trademark of Perma Pure Inc.

1.1.4 Gas Analyzers

After the zero valve and nafion tube the gas passes through the Anesthetic Agent and O2 Sensors. The oxygen sensor has two inputs. One input accepts the gas sample and the other draws room air for reference. The gas sample finally exits through the exhaust port on the rear of the unit. Refer to sections 1.2 and 1.3 for more information on the Anesthetic Agent and O

Sensors.

™

The Gas Module 3 uses an AION Oxygen Sensor. The AION must be a matched pair.

™

multigas analyzer and a Servomex Paramagnetic

multigas analyzer and Servomex Paramagnetic Oxygen Sensor

1.1.5 Sample Flow Differential Pressure Transducer

The sample flow differential pressure transducer (Gas Module II, Gas Module SE, and Gas Module SE with Spirometry) measures pressure drop across the O2 Sensor inlet restrictor and calculates sample flow from the pressure difference.

1.1.6 Working Pressure Transducer

The working pressure transducer (Gas Module II, Gas Module SE, and Gas Module SE with Spirometry) measures absolute working pressure between the Anesthetic Agent and O Sensors. It is used to detect situations which will post messages for occlusion and replace trap.

1.1.7 Pneumatic Unit

The pneumatic unit contains the zeroing valve, occlusion valve and tubing connections. There is a series of restrictors and chambers forming a pneumatic filter to prevent pressure oscillations in the pump from reaching the measuring units. Zeroing and occlusion valve connections to room air include a dust filter.

1.1.8 Connection Block

The connection block contains a sample gas outlet connector and an O2 Sensor reference gas inlet. The inlet is equipped with a dust filter.

1 - 4 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Gas Sampling System

1.1.9 Occlusion Valve

The valve (Gas Module II, Gas Module SE, and Gas Module SE with Spirometry) is activated when the sample line gets occluded. The main flow is diverted to the side flow of the water trap to help remove the occlusion faster.

1.1.10 Sampling Pump and Damping Chamber

The Gas Module II, Gas Module SE, and Gas Module SE with Spirometry gas sampling pump is a membrane pump that is run by a brushless DC motor. The gas flow rate is measured with a sample flow differential pressure transducer across a known restriction. The motor is automatically controlled to maintain a constant flow, even when the water trap ages and starts to get occluded. It also enables use of sample tubes with varying lengths and diameters.

The damping chamber is used to even out the pulsating flow and silence the exhaust flow.

The Gas Module 3 pump module is a low power, high reliability membrane pump and flow controller including preamplifier and pump power driver.

NOTE: Flow is never reversed towards the patient.

Gas Module Service Manual Addendum 0070-10-0522 1 - 5

Anesthetic Agent Sensor Theory Of Operation

Thermopile detectors

Temp sensor

Sample gas in

Sample gas out

Sample chamber

1.2 Anesthetic Agent Sensor

1.2.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

FIGURE 1-4 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Anesthetic Agent Sensor

The Anesthetic Agent Sensor is a sidestream gas analyzer, measuring real time concentrations of CO Desflurane, and Sevoflurane).

The Anesthetic Agent Sensor is a non-dispersive infrared analyzer, measuring absorption of the gas sample at seven infrared wavelengths, which are selected using optical narrow band filters. The IR lamp is a 4W filament, surrounded by thermal isolation. There is a hole in the isolation, passing the radiated light to a conical measuring chamber with a 4 mm length.

FIGURE 1-5 Anesthetic Agent Sensor Principle

From the sample chamber, radiated light goes into seven tubular light guides with reflective inner surfaces. At the other end of each light guide there is a thermopile infrared radiation detector with an optical filter in front of it.

, N2O and five anesthetic agents (Halothane, Enflurane, Isoflurane,

The Temp sensor measures the Anesthetic Agent Sensor’s temperature and uses it for temperature compensation.

1 - 6 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Anesthetic Agent Sensor

Anesthetic agents or mixtures of two anesthetic agents are automatically identified and concentrations of the identified agents are measured. The Anesthetic Agent Sensor also detects mixtures of more than two agents.

FIGURE 1-6 Infrared Absorbance of N

O and CO

Concentrations of CO2 and N2O are calculated from the absorption measured at 3 to 5 m.

FIGURE 1-7 Infrared Absorbance of Anesthetic Agents

Identification of anesthetic agents and calculation of their concentrations is performed by measuring absorptions at five wavelengths in the 8 to 9 m band and solving for the concentrations from a set of five equations.

The measuring accuracy is achieved utilizing numerous software compensations. The compensation parameters are determined individually for each Anesthetic Agent Sensor during factory calibration.

Gas Module Service Manual Addendum 0070-10-0522 1 - 7

Anesthetic Agent Sensor Theory Of Operation

1.2.2 Gas Module 3

FIGURE 1-8 Gas Module 3

FIGURE 1-9 Gas Module 3 Anesthetic Agent Sensor

The Anesthetic Agent Sensor is a sidestream gas analyzer, measuring real time concentrations of CO Desflurane, and Sevoflurane).

The Anesthetic Agent Sensor is a non-dispersive infrared analyzer, measuring absorption of the gas sample at up to eight infrared wavelengths, which are selected using optical narrow band filters.

, N2O and five anesthetic agents (Halothane, Enflurane, Isoflurane,

1 - 8 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Anesthetic Agent Sensor

N2O

Absorbance

Wav eleng th ( )

m

3.5 4 4.5 54.5

Absorbance

Wav eleng th ( )

m

78 10

Desflurane

Isoflurane

Enflurane

Sevoflurane

Halothane

91112

m

The absorption spectra for CO2, N2O, and the five anesthetic agents Halothane, Enflurane, Isoflurane, Sevoflurane, and Desflurane are shown in FIGURE 1-10 and FIGURE 1-11.

FIGURE 1-10 Infrared Absorption Spectra for N

O and CO

FIGURE 1-11 Infrared Absorption Spectra for Anesthetic Agents

To identify seven different gases in a mixture, measurements are done at seven different wavelengths. Measurements are done at an eighth wavelength for reference. The AION Multigas Analyzer uses the absorption peaks at 4.2 and 3.9 for measuring CO N

O respectively and the absorption peaks in the 8–12 range for measuring anesthetic

agents. See FIGURE 1-10 and FIGURE 1-11.

and

A set of narrow optical band pass filters intercepts a broadband infrared source to provide these wavelengths. The individual filters are mounted in a rapidly rotating filter wheel that intersects the light path. The filtered light passes into a cylindrical measurement chamber. At the other end of the chamber, there is an infrared radiation detector, whose output is directed to the host interface through the signal processor. See FIGURE 1-12.

™

Gas Module Service Manual Addendum 0070-10-0522 1 - 9

Anesthetic Agent Sensor Theory Of Operation

Gas Inlet Gas Outlet

Infrared

Detector

Signal

Processor

Host

Interface

Measurement

Chamber

Light

Source

Filter Wheel &

Optical FIlters

FIGURE 1-12 Optical Path

No radiation is absorbed if the measurement chamber is empty. The output signal from the detector is at maximum amplitude at a concentration of zero. Lower amplitudes indicate the presence of gases in the measurement chamber.

To establish the zero reference, the AION

™

Multigas Analyzer occasionally switches the zero

valve to direct ambient air through the measurement chamber.

1 - 10 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation O2 Sensor

Switched Magnetic field

Mixture out

Electromagnet

Microphone

Sample in

Reference in

1.3 O2 Sensor

1.3.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

FIGURE 1-13 O2 Sensor

The differential O configuration. The gas sample along with reference room air are conducted into a gap in an electromagnet with a strong magnetic field switched on and off at a frequency of approximately 165 Hz.

An alternating differential pressure is generated between the sample and reference inputs due to forces acting on the oxygen molecules in a magnetic field gradient.

The pressure is measured with a sensitive differential transducer, rectified with a synchronous detector and amplified to produce a DC voltage proportional to the O difference between the two gases to be measured.

Sensor uses the paramagnetic principle in a pneumatic bridge

concentration

FIGURE 1-14 O

Gas Module Service Manual Addendum 0070-10-0522 1 - 11

Measurement Principle

O2 Sensor Theory Of Operation

1.3.2 Gas Module 3

Oxygen measurements are essential for correct gas measurement in the AION™ Multigas Analyzer. Because oxygen does not absorb infrared light to the same extent as other breathing gases and must be measured using another method, there is no built in oxygen measurement module. The Gas Module 3 uses a Servomex Paramagnetic Oxygen Sensor.

FIGURE 1-15 Servomex Paramagnetic Oxygen Sensor

The Servomex Paramagnetic Oxygen Sensor uses the paramagnetic susceptibility of oxygen, which is physical property that distinguishes oxygen from most common gases. Inside the sensor are two nitrogen-filled glass spheres mounted on a strong rare metal taut-band suspension. The assembly is suspended in a symmetrical non-uniform magnetic field. In the presence of paramagnetic oxygen, the glass spheres are pushed further away from the strongest part of the magnetic field. The strength of the torque acting on the suspension is proportional to the oxygen concentration (see FIGURE 1-16).

Paramagnetic technology is non-depleting, which means there are no consumable parts, ensuring consistent performance over time. The selectivity of the paramagnetic measurement for oxygen means there is no interference from other respiratory gases. The small volume chamber allows a rapid gas exchange, giving the capability for fast response oxygen measurement.

1 - 12 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation O2 Sensor

Permanent

Magnets

Feedback

Signal

Light Source

Photo Detector

Current proportional

to O

concentration

Output Voltage proportional

to O

concentration

FIGURE 1-16 The Paramagnetic Oxygen Sensor Measurement Principle

Gas Module Service Manual Addendum 0070-10-0522 1 - 13

CPU Board Theory Of Operation

Signal Processing

CPU Board

TPX Board

PVX Board

Flow Press

OM Board

MUX

CPU

80C196NT

Anaes.

Agents

N2O CO

IR Thermopile Sensors

T Sensor

2 ch A / D 16 bit

Module Bus

MUX

and

buffer

x 5

x 2

RS-485

driver

MUX

and

buffer

preamps

T Sensor

Signal Processing

Control Logic

CPU Board

Lamp Unit

OM Board

PVX Board

PVX valves

MUX

Valves

A / D

Module Bus

TPX Lamp

Gas press

Diff press

MUX &

buffer

Valves

CPU

80C196NT

Fan

pneumatics unit

reset

data

Lamp Current Sensing

A / D

Temp

sensor

Control Logic

1.4 CPU Board

1.4.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

The CPU board contains the processor, memory and A/D converters that are common to the whole module. The CPU board also contains preamplifiers for the Anesthetic Agent Sensor and the drivers for the valves, fan and pump. The module is connected to the module bus through a RS-485 serial channel.

FIGURE 1-17 CPU Signal Processing

1 - 14 0070-10-0522 Gas Module Service Manual Addendum

FIGURE 1-18 CPU Control Logic

Theory Of Operation CPU Board

1.4.2 Gas Module 3

1.4.2.1 PCB

Power is a dedicated routing from the 12 V power filter. Power ground and signal ground are connected on this board. The screws that attach the board to the enclosure are also connected to chassis ground.

1.4.2.2 Power

To reduce noise from the power supply, both the 5 V and 12 V power lines are filtered. A 5 V to 3.3 V linear regulator supplies power to the microcontroller. If the 5 V power supply drops below 4.3 V, a reset signal is sent to the microprocessor.

1.4.2.3 Microcontroller

The microcontroller supports the following communication ports:

•AION

•Spirometry

• Patient Monitor

•Service

All ports use the RS-232 communication protocol. A real time clock (RTC) powered by either

3.3 V or by battery enables logging of malfunctions. If the RTC fails due to battery depletion

during battery mode, functionality is not affected.

™

1.4.2.4 Battery

The battery that supports the RTC in the microcontroller has a minimum lifetime of 7 years. When the device is running on AC power, there is zero drain on the battery, thus prolonging its lifetime.

Immediately after installing a new battery, the device should be power cycled to avoid high battery currents (~540 µA). Follow the battery supplier’s handling recommendations.

The battery is installed at component number B401 on the PCB. The battery positive node is marked with a “+” on the PCB and has two holes to differentiate it from the negative node which has one hole on the PCB.

1.4.2.5 SPI Memory

The 8 Mb capacity of the SPI memory can store an error log with timestamps to facilitate debugging and service.

Gas Module Service Manual Addendum 0070-10-0522 1 - 15

O2 Board Theory Of Operation

Calibration Data Stored in

EEPROM

CPU Board

TPX Board

PVX Board

OM Board

Module Bus

RS-485

driver

CPU

80C196NT

EEPROM

OM Board

Factory calibration data for PVX

Factory calibration data for OM and TPX

EEPROM

Correction data for amplification and offset of all amplification channels

EEPROM

Calibration Data Stored in EEPROM

1.5 O2 Board

The O2 board is only used in the Gas Module II, Gas Module SE, and Gas Module SE with Spirometry.

The O2 board contains the specific electronics for the O2 sensor. Sample flow measurement and sampling system pressure sensors are on this board. It also contains EEPROM’s that store factory calibration data of both the Anesthetic Agent and O

sensors.

FIGURE 1-19 O

1 - 16 0070-10-0522 Gas Module Service Manual Addendum

Board Calibration Data Stored in EEPROM

Theory Of Operation Communication Interface Board

1.6 Communication Interface Board

1.6.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

This board is a converter between the Patient Monitor and the Gas Module. It converts the proprietary RS-232 hardware protocol to the Gas Module’s RS-485 hardware protocol and vice versa. The board contains a programmable micro-processor (Intel 87C196KD), a QUART (Exar82C684CJ) and line drivers for RS-232 and RS-485 communication lines. For production test purposes the RS-485 lines have been connected to D-connector X2 pins 1,5,6 and 8. Refer to the figure below.

FIGURE 1-20 Connectors Pin Configurations

Gas Module Service Manual Addendum 0070-10-0522 1 - 17

Communication Interface Board Theory Of Operation

1.6.2 Gas Module 3

1.6.2.1 Patient Monitor

The interface to the patient monitor is a D-sub, 25-pin, female connector that uses the RS-232 communication protocol.

1.6.2.2 AION

™

The interface to the AION™ is a 2 x 17-pin IDC with locking clips. Communication between the HOST and the AION distributed from the communication board to the AION

™

is with the RS-232 communication protocol. 12 V power is

1.6.2.3 Servomex

The interface to the Servomex is a 2 x 8-pin IDC with locking clips. All communication is to the AION

™

through the communication board.

1.6.2.4 DRYLINE™ Receptacle

The interface to the DRYLINE™ receptacle is a 4-pin picoblade. All communication is to the

™

AION

through the communication board.

1.6.2.5 OXIMA Receptacle

The interface to the OXIMA receptacle is a 10-pin DF20 from Hirose. All communication is to the AION

™

through the communication board.

1.6.2.6 LED

Power ON indication is a green LED. Flash programming mode is indicated with a green LED close to the flash programming switch for the AION

™

1.6.2.7 Switches

• SW201 is the flash programming initialization button for the AION

• SW202 is for future use

• SW501 is a reset switch for the microprocessor

1 - 18 0070-10-0522 Gas Module Service Manual Addendum

™

Interface Board

M-GAS Assy

Power Supply PCB

Front Bezel Assy

CPU PCB

TPX

Agent Bench

OM Oxygen Module

Pneumatics

Nafion

Exhaust Air Input

Host Monitor

Ext. Com. Cable

Gas Module II

Filter

A b s o r b e r

Interface Board

M-GAS Assy

Power Supply PCB

Front Bezel Assy

CPU PCB

TPX

Agent Bench

Oxygen Module

Pneumatics

Nafion

Exhaust Air Input

Filter

Host Monitor

Ext. Com. Cable

Gas Module SE with Sp irometry

A b s o r b e r

PVX Unit

Interface Board

M-GAS Assy

Power Supply PCB

Front Bezel Assy

CPU PCB

TPX

Agent Bench

Oxygen Module

Pneumatics

Nafion

Exhaust Air Input

Filter

Host Monitor

Ext. Com. Cable

Gas Module SE

A b s o r b e r

Theory Of Operation Electrical Wiring Diagram

1.7 Electrical Wiring Diagram

FIGURE 1-21

Gas Module Service Manual Addendum 0070-10-0522 1 - 19

Gas Module 3 Electronics Theory Of Operation

AION™ Multigas Analyzer

Servomex Paramagnetic

Oxygen Sensor

Power Supply

FRONT

RS-232 Connector

Mains Connector

1.8 Gas Module 3 Electronics

FIGURE 1-22 Top View of the Component Layout of Gas Module 3

1 - 20 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Gas Module 3 Electronics

FIGURE 1-23 Overview of Gas Module 3 Electronics

There are no accessible electrical components in the Gas Module 3.

Gas Module Service Manual Addendum 0070-10-0522 1 - 21

Power Supply Theory Of Operation

1.9 Power Supply

1.9.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

The MSP1306 is a quad-output 53W power supply. The key features of this off-line switching power supply are as follows:

• Wide-range AC input voltage —85 to 264 VAC,

• MOSFET based, current mode PWM converter stage,

• Fixed operating frequency —~ 62 kHz,

• Compliance with FCC and VDE Class B conducted EMI,

• Most outputs independently regulated,

• All outputs short-circuit protected,

• Output #1 is adjustable with overvoltage protection,

• Rated to operate from 0 to 50 °C.

NOTE: This description of circuit operation assumes a very basic

understanding of power rectifier circuits and current mode pulse-width modulation (PWM) operation.

1.9.1.1 AC Input / Rectification

The input voltage is applied to the EMI filter through the fuse (F1). The input voltage must be AC, 90 to 264 VAC, of 47 to 63 Hz, with less than 5% distortion. The input fuse provides protection from fire hazard under catastrophic failure conditions. Under normal conditions, the control circuits provide overcurrent protection. Current flow raises the temperature of the thermistors, reducing their resistance and the inherent voltage drop across the thermistor to less than 1V. A bleeder resistor across the AC mains is provided to discharge the EMI capacitors when the AC power is interrupted. The input voltage is then rectified through a full-wave bridge rectifier and filtered by large electrolytic capacitors to provide DC voltage with a small ripple voltage at twice the input frequency. The peak ripple component is typically 0 to 20% of the peak input voltage.

1.9.1.2 Switching Converter Stage Operation

The switching converter stage chops and transforms the high voltage DC bus to multiple low voltage outputs. The DC bus voltage is always applied to one end of the primary winding of the power transformer.

Energy storage is possible since the power transformer is actually an inductor with multiple windings. Once the stored energy reaches a level determined by the control circuit, the gate voltage is rapidly removed from the power switch gates, switching them off. The interruption of current flow in the power transformer forces the voltage across the primary to reverse almost instantaneously, rising to the level required to provide a discharge of the flux built up in the power transformer. The action of the transformer is said to “fly back” to the clamping level, thus the popular term flyback converter.

1 - 22 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Power Supply

The primary current is sensed by a power resistor in series with the source of the switch. The control circuit monitors the voltage analog of the primary current and shuts off the power switches early if excess current is detected (approx. 1V peak).

1.9.1.3 Output Rectifiers, Filters and Post-regulators

• Output #1—The output rectifier clamps the transformer windings directly to the filter capacitors for the +5V output.

• Output #2—Output #2 is regulated by a discrete linear regulator.

• Output #3—Output #3 is post-regulated by a conventional three-pin linear regulator.

• Output #4—Output #4 is also post-regulated with a three-pin regulator. An output rectifier provides rectified charge to the filter capacitor during the flyback cycle.

1.9.1.4 Control Circuits

Main Output Regulation and PWM Operation—The main 5 volt output voltage is controlled directly and thus sets the transformer voltage for all the other outputs. The output voltage is sensed through a resistor divider. The potentiometer adjusts the voltage ratio is applied to the

2.50V reference.

Normal switching operation will commence if the fault has been removed. If the fault is still present, the shutdown cycle will repeat. The power supply thus appears to be providing short bursts of power or “hiccuping”.

Overvoltage Protection—If the voltage of the main output increases beyond safe limits, the overvoltage protection zener diode begins to conduct. When sufficient current is available to raise the gate of SCR1 to approx. 0.7V, the SCR latches “On”, shorting the output causing a “hiccup” cycle that will repeat until the fault is removed or the power supply is repaired.

1.9.2 Gas Module 3

The power inlet is shielded, medical grade M5 with an integrated filter, a line fuse, and a neutral fuse. A double pole power switch ensures that power to the gas analyzer is ON or OFF due to its mechanical function.

The medical grade power supply can support an input range from 85 VAC to 264 VAC. Its 5 V and 12 V dual output can deliver a maximum power of 25 W. Power ON indication is a green LED that is itself powered from the 5 V output.

Gas Module Service Manual Addendum 0070-10-0522 1 - 23

Spirometry (Gas Module SE with Spirometry Only) Overview Theory Of Operation

1.10 Spirometry (Gas Module SE with Spirometry Only) Overview

The Gas Module SE with spirometry option enables monitoring of the ventilator operation and the patient respiratory status: CO2, O2, N2O, anesthetic agents, airway pressures, volumes, and lung mechanics.

In the spirometry measurement, the airway pressures are measured as close to the patient as possible, from the part between patient circuit and patient airway, using the adult and pediatric sensors. The same sensors are used for gas sampling.

The spirometry sensors are designed to measure kinetic pressure by a two-sided Pitot tube. Pressure is transferred to the monitor through a spirometry tube and measured by a pressure transducer on the PVX board. The pressure difference across a flow restrictor together with the gas concentration information is used to calculate flow. The volume information is obtained by integrating the flow signal.

1.10.1 Measured Parameters

• Inspiratory and expiratory tidal volumes (Vtinsp/exp)

• Inspiratory and expiratory minute volumes (MVinsp/exp)

• Airway pressure

• Peak pressure (Ppeak)

• Plateau pressure (Pplat)

• Real-time pressure waveform

• Positive end expiratory pressure (PEEP)

• Compliance (Compl)

• Airway resistance (Raw)

•Flow

• Real time waveform (Flow)

• Ratio of the inspiratory and expiratory time (I:E)

• Pressure-volume loop (Paw-Vol. loop)

• Flow volume loop (Flow-Vol. loop)

NOTE: With spontaneous breaths, compliance and airway

resistance are not measured. With pressure supported breaths, airway resistance is not measured.

1 - 24 0070-10-0522 Gas Module Service Manual Addendum

Theory Of Operation Spirometry (Gas Module SE with Spirometry Only) Overview

Compl

Vtexp

Pplat PEEP–

----------------------------------

pt

Ra V·t Vt+

Compl PEEP+

----------------------------------------

1.10.2 Measurement Principles

• Ppeak is the maximum pressure during one breath

• Pplat is the pressure at the reversal point of the flow, at the end of the inspiration phase,

after the inspiratory pause.

• Pmean is the average pressure during one breath.

• PEEP is the pressure in the lungs at the end of the expiration, measured at the moment

when the expiratory phase changes to inspiratory flow.

• Compliance (Compl) is calculated for each breath from the following equation:

Compliance tells how big a pressure difference is needed to deliver a certain volume of gas into the patient.

• The airway resistance, Raw, is calculated from an equation that describes the kinetics of

the gas flow between the lungs and the flow sensor. The pressure at the sensor can be derived at any moment of the breath cycle from the following equation:

where p(t), (t) and V(t) are pressure, flow and volume measured at the sensor at a certain time (t).

1.10.3 PVX Measuring Unit

NOTE: Never apply overpressure or negative pressure of more

When patient spirometry is used, a special sensor replaces the normal airway adapter in the patient circuit. A double lumen tubing is attached to the two connectors on the adapter and on the module front panel.

The PVX unit provides patient respiration monitoring capabilities using the adult and pediatric flow sensors.

Gas Module Service Manual Addendum 0070-10-0522 1 - 25

than 300 cmH pressure maximum is 25 cmH when connecting tubes.

O to the flow and volume tubing. Differential

O on one port at a time, e.g.

Spirometry (Gas Module SE with Spirometry Only) Overview Theory Of Operation

FIGURE 1-24 PVX measuring unit

The measurement is based on measuring the kinetic gas pressure and is performed using the Pitot effect. A pressure transducer is used to measure the Pitot pressure. The signal is then linearized and corrected according to the density of the gas. Speed of the flow is calculated from the pressure and Vt (Tidal Volume) is integrated from it.

The PVX unit consists of airway connections, two pressure transducers, valves and preamplifiers. The preamplifiers are connected to the A/D-converter on the main CPU module.

A patient’s breathing flow passing through the adapter creates a pressure difference. This pressure difference is measured by pressure transducer, B1. Overpressure and negative pressure in airways are measured by another pressure transducer, B2.

1 - 26 0070-10-0522 Gas Module Service Manual Addendum

2.0

Specifications

Contents of this chapter .................................................................... Page

2.1 Performance Specifications ....................................................... 2-2

2.4 Power Input Ratings ................................................................. 2-17

2.5 Environmental Conditions ......................................................... 2-17

2.6 Physical Characteristics ............................................................. 2-18

2.7 Agency Compliance .................................................................. 2-18

Gas Module Service Manual Addendum 0070-10-0522 2 - 1

Performance Specifications Specifications

2.1 Performance Specifications

2.1.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Sampling Rate: 200 ± 20 ml/min (with sampling line  6

meters, under normal conditions)

Sampling Delay: 2.5 seconds (with a 3 meter sampling line)

Total System Response Time: 2.9 seconds (with a 3 meter sampling line,

including sampling delay and rise time)

Display Update Rate: Breath-by-Breath

Compensation: Automatic for pressure, CO

collision broadening effect

Warm-up Time: Maximum 2 minutes to operation with CO2,

, and N2O

5 minutes to operation of anesthetic agents

30 minutes for full accuracy specifications

Autozeroing Interval: At startup and at 2, 4, 10, 15, 30, 45, and

60 minutes of operation. Every 60 minutes thereafter.

O and CO2-

2-N2

2 - 2 0070-10-0522 Gas Module Service Manual Addendum

Specifications Performance Specifications

2.1.2 Gas Module 3

2.1.2.1 General

Technology NDIR type gas analyzer measuring at 3.9 – 12.8 µm

with paramagnetic oxygen sensor. Pressure, temperature and full spectral interference correction.

Operating modes • Startup

• ISO accuracy

• Full accuracy

Measured gases CO

, N2O, O2, HAL, ENF, ISO, SEV, DES

Measured parameters • Momentary gas concentration

• Inspired and expired concentrations of all gases

• Breath rate

Resolution CO

and agents: 0.01%; O2 and N2O: 0.1%

Warm-up time ISO accuracy within 45 s, full accuracy within 10 min

ISO Accuracy Specifications

As Full Accuracy Specifications, but de-rated as follows:

• Add ± 0.3% ABS to inaccuracy for CO

• Add ± 8% REL to inaccuracy for all Agents

•N2O inaccuracy is ± (8% REL + 2% ABS)

•O

no addition

Rise times2 (t @200 ml/min

10–90%

)

•CO

•N

O 250 ms

•O

250 ms (fall time 200 ms)

500 ms

• HAL, ISO, SEV, DES 300 ms

• ENF 350 ms

1 Includes interference from other gases. 2 The step rise time specification at 200 ml/min sample flow includes DRYLINE

and DRYLINE

3 The step rise time specification at 120 ml/min sample flow includes DRYLINE

DRYLINE

4 The delay time specification is valid both for 120 ml/min sample flow (using DRYLINE

and DRYLINE Trap, Adult/Pediatric and DRYLINE

5 For HAL, add 0.1% ABS to threshold values.

Gas Module Service Manual Addendum 0070-10-0522 2 - 3

™

Sampling Line, Adult/Pediatric 2.5 m.

™

Sampling Line, Neonate 2.5 m.

™

Sampling Line, Neonate 2.5 m) and for 200 ml/min sample flow (using DRYLINE™ Water

™

Sampling Line, Adult/Pediatric 2.5 m).

™

Water Trap, Adult/Pediatric

™

Water Trap, Neonate and

™

Water Trap, Neonate

Performance Specifications Specifications

Rise times3 (t @120 ml/min

10–90%

)

•CO

•N

O 250 ms

•O

250 ms (fall time 200 ms)

600 ms

• HAL, ISO, SEV, DES 300 ms

• ENF 350 ms

Delay time4 (t

)< 4 s

0—10%

Identification Dual agent

Primary agent ID threshold

Secondary agent ID threshold

0.15% (0.4% during ISO accuracy mode)

0.3% (0.5% during ISO accuracy mode) or 5% REL (10% REL for Isoflurane) of primary agent if primary agent >10%

Agent ID time Three breaths - Typically less than 10 s

Display Update Rate: Breath-by-Breath

Main Fuse: 2x T0.8A 250V

1 Includes interference from other gases. 2 The step rise time specification at 200 ml/min sample flow includes DRYLINE

and DRYLINE

3 The step rise time specification at 120 ml/min sample flow includes DRYLINE

DRYLINE

4 The delay time specification is valid both for 120 ml/min sample flow (using DRYLINE

and DRYLINE Trap, Adult/Pediatric and DRYLINE

5 For HAL, add 0.1% ABS to threshold values.

™

Sampling Line, Adult/Pediatric 2.5 m.

™

Sampling Line, Neonate 2.5 m.

™

Sampling Line, Neonate 2.5 m) and for 200 ml/min sample flow (using DRYLINE™ Water

™

Sampling Line, Adult/Pediatric 2.5 m).

™

Water Trap, Adult/Pediatric

™

Water Trap, Neonate and

™

Water Trap, Neonate

2 - 4 0070-10-0522 Gas Module Service Manual Addendum

Specifications Performance Specifications

2.1.2.2 Pneumatic

Technology Side-stream gas sampling

Pneumatic modes • Room air reference measurement: Automatic

• Sampling system purge: Automatic

Pump Flow controlled dual membrane

Gas sampling rate

with DRYLINE™ Water Trap, Adult/Ped: 200 ml/min

™

with DRYLINE

Water Trap, Neonate: 120 ml/min

Occlusion alarm Actual flow < 40 ml/min

Room air reference measurement Automatic when gas measurement bench temperature

change is > 1°C or time since last ref. measurement is > 4 h

Reference measurement interval ISO Accuracy Mode > 30 s

Full Accuracy Mode > 4 h

Reference measurement duration Typical 5 s, Max 9 s

Purge cycle Automatic when occlusion detected

Change water trap alarm Actual flow < 75% of set flow and purge

cycle has failed

Pressure difference

1 The Gas Module 3 measures volumetric flow at actual barometric pressure, normalized to room air

at 21 ˚C and 0% RH. The use of other gas mixtures the room air for flow calibration may cause flow measurement errors.

2 For a complete system with DRYLINE

-40 hPa < (P

™

gas sampling accessories.

Sampling point

– P

) < + 30 hPa

Evac

Gas Module Service Manual Addendum 0070-10-0522 2 - 5

Gas Measurements Specifications

2.2 Gas Measurements

2.2.1 Normal Conditions

(after 30 minute warm-up period)

2.2.1.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Ambient temperature 18 – 28 °C within ± 5 °C of calibration

Ambient pressure 500 – 800 mmHg, ± 50 mmHg of calibration

Ambient humidity 20 – 80% RH, ± 50% RH of calibration

Room air reference measurement for Gas Module 3

Automatic when gas measurement bench temperature change is > 1 last ref. measurement is > 4 h

C or time since

2.2.1.2 Gas Module 3

Ambient temperature 10 – 55 °C within ± 5 °C of calibration

Ambient pressure 525 – 900 mmHg

Ambient humidity 10 – 95% RH

2.2.2 Non-disturbing Gases

2.2.2.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Ethanol C

Acetone in concentrations < 0.1%

Methane CH

OH in concentrations < 0.3%

2H5

in concentrations < 0.2%

Nitrogen N

Carbon monoxide CO in any concentration

Nitric Oxide NO in concentrations < 200 ppm

Water vapor in any concentration

2 - 6 0070-10-0522 Gas Module Service Manual Addendum

in any concentration

Specifications Gas Measurements

2.2.3 Disturbing Gases

2.2.3.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Helium Decreases CO2 readings < 0.6 vol% typically

Decreases O2 readings < 3 vol% typically

Xenon Decreases CO2 readings < 0.4 vol% typically

2.2.4 Gas Module 3 Interference Specifications

2.2.4.1 Gas Interference [%ABS]

NOTE: The following is the maximum interference from each gas at

concentrations within specified accuracy ranges for each gas. Total interference for all gases is never larger than 5% REL. Multiple agent interference on CO typically the same as single agent interference.

, N2O, and O2 is

N2O: 0.1 O

: 0.1

Any agent: 0.1

OCO

: 0.1

O2: 0.1 Any agent: 0.1

HAL, ENF, ISO CO

: 0

O: 0.1 O2: 0.1 Second agent: 0.1 (typical)

SEV CO

: 0

O: 0.1 O2: 0.1 Second agent: 0.1 (typical)

DES CO

: 0

O: 0.1 O2: 0.1 Second agent: 0.1 (typical)

CO2: 0.2 N2O: 0.2 Any agent: 1.0

Gas Module Service Manual Addendum 0070-10-0522 2 - 7

Gas Measurements Specifications

2.2.4.2 Contaminant Interference

INTERFERENCE [%ABS]

CONTAMINANT CO

< 100% Xenon 0.1 0 0 0.5%

< 50% He 0.1 0 0 0.5%

Metered dose inhaler propellants Unspecified Unspecified Unspecified 0.5%

< 0.1% Ethanol 0000.5%

Saturated Isopropanol vapor 0.1 0 0 0.5%

< 1% Acetone 0.1 0.1 0 0.5%

< 1% Methane 0.1 0.1 0 0.5%

2.2.5 CO

N2OAGENTSO

2.2.5.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Measurement Range: 0 – 15 vol%

0 – 15 kPa 0 – 113 mmHg 0 – 113 Torr

Measurement Rise Time: < 400 ms

Accuracy: ± (0.2 vol% + 2% of reading)

Cross Effects: < 0.2 vol% for O

Threshold: 0.1 vol% (If value < 0.1%, 0.0 is displayed)

Respiration Rate: Breath Detection - 1% change in CO

2.2.5.2 Gas Module 3

Measurement Range: 0 – 10 vol%

Measurement Rise Time: 250 ms for 200 ml/min

Accuracy: ± 0.1% of Reading @ 0 – 1% of volume

, N2O, and anesthetic agents

level

Measurement Range - 4 to 60 bpm

0 – 10 kPa 0 – 75 mmHg 0 – 75 Torr

250 ms for 120 ml/min

± 0.2% of Reading @ 1 – 5% of volume

2 - 8 0070-10-0522 Gas Module Service Manual Addendum

Specifications Gas Measurements

± 0.3% of Reading @ 5 – 7% of volume

± 0.5% of Reading @ 7 – 10% of volume

Unspecified @ > 10% of volume

Cross Effects: N2O – 0.1% of Reading

– 0.1% of Reading

Any Agent – 0.1% of Reading

Threshold: 0.1 vol% (0.3% during ISO accuracy mode)

If value < 0.1%, 0.0 is displayed

Respiration Rate: Breath detection > 1% change in CO2

concentration

Measurement Range 2 – 100 bpm with accuracy ± 1 bpm @ < 60 bpm

2.2.6 O

2.2.6.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Measurement Range: 0 – 100 vol%

Measurement Rise Time: < 400 ms

Accuracy: ± (1 vol% + 2% of reading)

Cross Effects: < 2 vol% for N

< 1 vol% for anesthetic agents

Fi - Et difference: 0.1 vol% resolution

2.2.6.2 Gas Module 3

Measurement Range: 0 – 100 vol%

Measurement Rise Time: < 400 ms for 200 ml/min

< 450 ms for 120 ml/min

Accuracy: ± 1% of Reading @ 0 – 25% of volume

± 2% of Reading @ 25 – 80% of volume

± 3% of Reading @ 80 – 100% of volume

Cross Effects (maximum): CO

Gas Module Service Manual Addendum 0070-10-0522 2 - 9

– 0.2% of Reading

Gas Measurements Specifications

N2O – 0.2% of Reading

Any Agent – 1.0% of Reading

Fi - Et difference: < 0.1 vol% resolution

2.2.7 N2O

2.2.7.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Measurement Range: 0 – 100% N

Measurement Rise Time: < 400ms

Accuracy: ± (2 vol% + 2% of reading)

Gas Cross Effects: < 2 vol% anesthetic agents

2.2.7.2 Gas Module 3

Measurement Range: 0 – 100% N

Measurement Rise Time: < 250 ms for 200 ml/min

Accuracy: ± 2% of Reading @ 0 – 20% of volume

Cross Effects (maximum): CO2 – 0.1% of Reading

< 250 ms for 120 ml/min

± 3% of Reading @ 20 – 100% of volume

– 0.1% of Reading

Any Agent – 0.1% of Reading

Threshold: 3 vol% (3% during ISO accuracy mode)

If value < 3%, 0.0 is displayed

2.2.8 Anesthetic Agents

2.2.8.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Measurement Range: Halothane, Enflurane and Isoflurane -

0 to 6.0 vol%

Sevoflurane - 0 to 8 vol%

Desflurane - 0 to 20 vol%

2 - 10 0070-10-0522 Gas Module Service Manual Addendum

Specifications Gas Measurements

Measurement Rise Time: Enflurane, Isoflurane, Sevoflurane, Desflurane

- < 600 ms Halothane - < 1000 ms

Accuracy: ± (0.15 vol% + 5% of reading)

Gas Cross Effects: < 0.15 vol% N

Resolution: Two digits for Anesthetic Agent concentrations

Threshold: 0.15 vol%

Identification Time: < 20 seconds (for single agents)

Mixture Identification Threshold for second agent:

2.2.8.2 Gas Module 3

Measurement Range: 0 – 5 vol% of ENF, HAL, ISO

< 1.0 vol% If Anesthetic Agent concentration is below 0.1 vol%, 0.0% is displayed

0.2 vol% + 10% of total concentration

0 – 8 vol% of SEV

0 – 18 vol% of DES

Measurement Rise Time: DES, HAL, ISO, SEV: 300 ms for 200 ml/min

ENF: 350 ms for 200 ml/min

DES, HAL, ISO, SEV: 300 ms for 120 ml/min

ENF: 350 ms for 120 ml/min

Accuracy: ± 0.15% of Reading @ 0 – 1% of DES, ENF,

HAL, ISO, SEV volume

± 0.2% of Reading @ 1 – 5% of DES, ENF, HAL,

ISO, SEV volume

Unspecified @ > 5% of ENF, HAL, ISO volume

± 0.4% of Reading @ 5 – 8% of SEV volume

Unspecified @ > 8% of SEV volume

± 0.4% of Reading @ 5 – 10% of DES volume

± 0.6% of Reading @ 10 – 15% of DES volume

± 1% of Reading @ 15 – 18% of DES volume

Gas Module Service Manual Addendum 0070-10-0522 2 - 11

Gas Measurements Specifications

Unspecified @ > 18% of DES volume

Cross Effects: CO2 – 0% of Reading

O – 0.1% of Reading

– 0.1% of Reading

2nd Agent – 0.1% of Reading

Threshold: Primary Agent ID 0.15% (0.4% during ISO

accuracy mode)

Secondary Agent ID 0.3% (0.5% during ISO accuracy mode) 5% of volume (10% of volume for Isoflurane) of primary agent > 10%

2.2.9 Accuracy specifications at conditions exceeding normal

NOTE: Gas Module II, Gas Module SE, and Gas Module SE with

1. Ambient temperature: 10 – 40

2. During warm-up: 2 to 10 minutes (anesthetic agents 5 - 10

3. During warm-up: 10 to 30 minutes, under normal conditions

4. N

2.2.9.1 CO

Accuracy: ± (0.3 vol% + 4% of reading)

2.2.9.2 O

Spirometry

C, within ± 5 °C of calibration

Ambient pressure: 500 – 800 mmHg, ± 50 mmHg of calibration

Ambient humidity: 10 – 98% RH, ± 20% RH of calibration

minutes), under normal conditions

O: > 85%

(at 5 vol% error ± 0.5 vol%) 1, 3

± (0.4 vol% + 7% of reading) (at 5 vol% error ± 0.75 vol%) 2

Accuracy: ± (2 vol% + 2% of reading) 1, 3

± (3 vol% + 3% of reading) 2

2 - 12 0070-10-0522 Gas Module Service Manual Addendum

Specifications Gas Measurements

2.2.9.3 N2O

Accuracy: ± (3 vol% + 3% of reading) 1, 3

± (3 vol% + 5% of reading) 2

± (2 vol% + 8% of reading) 4

2.2.9.4 Anesthetic Agents

(Halothane, Enflurane, Isoflurane, Sevoflurane, Desflurane)

No extended measuring range, but a warning of exceeding measuring range.

Accuracy: ± (0.2 vol% + 10% of reading) 1, 3

± (0.3 vol% + 10% of reading) 2

2.2.10 ISO Mode Accuracy specifications for Gas Module 3

2.2.10.1 CO

Accuracy: ± 0.4% of Reading @ 0 – 1% of volume

2.2.10.2 N2O

Accuracy: ± (10% of Reading + 2% of volume)

2.2.10.3 O

Accuracy: ± 1% of Reading @ 0 – 25% of volume

± 0.5% of Reading @ 1 – 5% of volume

± 0.6% of Reading @ 5 – 7% of volume

± 0.8% of Reading @ 7 – 10% of volume

Unspecified @ > 10% of volume

@ 0 – 20% of volume

± (11% of Reading + 2% of volume) @ 0 – 20% of volume

± 2% of Reading @ 25 – 80% of volume

± 3% of Reading @ 80 – 100% of volume

2.2.10.4 Halothane, Enflurane, and Isoflurane

Accuracy: ± (0.15% of Reading + 8% of volume)

@ 0 – 1% of volume

Gas Module Service Manual Addendum 0070-10-0522 2 - 13

Gas Measurements Specifications

± (0.2% of Reading + 8% of volume) @ 1 – 5% of volume

Unspecified @ > 5% of volume

2.2.10.5 Sevoflurane

Accuracy: ± (0.15% of Reading + 8% of volume)

@ 0 – 1% of volume

± (0.2% of Reading + 8% of volume) @ 1 – 5% of volume

± (0.4% of Reading + 8% of volume) @ 5 – 8% of volume

Unspecified @ > 8% of volume

2.2.10.6 Desflurane

Accuracy: ± (0.15% of Reading + 8% of volume)

@ 0 – 1% of volume

± (0.2% of Reading + 8% of volume) @ 1 – 5% of volume

± (0.4% of Reading + 8% of volume) @ 5 – 10% of volume

± (0.6% of Reading + 8% of volume) @ 10 – 15% of volume

± (1.0% of Reading + 8% of volume) @ 15 – 18% of volume

Unspecified @ > 18% of volume

2 - 14 0070-10-0522 Gas Module Service Manual Addendum

Specifications Patient Spirometry

2.3 Patient Spirometry

2.3.1 Normal Conditions for Gas Module SE with Spirometry

(after 10 minute warm-up period)

Ambient temperature 10 – 40 °C

Ambient pressure 500 – 800 mmHg

Ambient humidity 10 – 98% RH

Airway humidity 10 – 100% RH

Respiration rate 4 – 35 breaths/min (adult)

4 – 50 breaths/min (pediatric)

I:E ratio 1:4.5 – 2:1

Intubation tube 5.5 – 10 mm (adult)

2.3.1.1 Airway Pressure (Paw)

Measuring range: -20 to +100 cmH2O

Resolution: 0.5 cmH2O

Accuracy: ± 1 cmH2O

2.3.1.2 Flow

Measurement range (for both directions): 1.5 – 100 l/min (adult)

2.3.1.3 Tidal Volume

Measurement range: 150 – 2000 ml (adult)

Resolution: 1 ml

Accuracy: ± 6% or 30 ml (adult)

3 – 6 mm (pediatric)

0.25 – 25 l/min (pediatric)

15 – 300 ml (pediatric)

± 6% or 4 ml (pediatric)

Gas Module Service Manual Addendum 0070-10-0522 2 - 15

Patient Spirometry Specifications

2.3.1.4 Minute Volume

Measurement range: 2 – 20 l/min (adult)

0.5 – 5 l/min (pediatric)

Resolution: 0.1 l/min

2.3.1.5 Compliance

Measurement range: 4 – 100 ml/cmH2O (adult)

1 – 100 ml/cmH

Resolution: 1 ml/cmH2O (adult)

O (pediatric)

0.1 ml/cmH

O (pediatric)

2.3.1.6 Airway Resistance

Measurement range: 0 – 40 cmH

Resolution: 1 cmH2O/l/s

O/l/s

2.3.2 Accuracy specifications at conditions exceeding normal

During warm-up: 2 to 10 minutes

2.3.2.1 Airway Pressure (Paw)

Accuracy: ± 2 cmH

2.3.2.2 Tidal volume

Accuracy: ± 10% or 100 ml (adult)

± 10% or 10 ml (pediatric)

2 - 16 0070-10-0522 Gas Module Service Manual Addendum

Specifications Power Input Ratings

2.4 Power Input Ratings

Gas Module II/SE/SE with Spirometry: 100 to 240 VAC ± 10% (90 to 264 VAC), 50/60Hz, 18 W

Gas Module 3: 100 to 240 VAC ± 10% (90 to 264 VAC), 50/60Hz, < 15 W

2.5 Environmental Conditions

2.5.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Transport and Storage Temperature: -20 °C to +60 °C

Transport and Storage Humidity: 5 to 95%, non-condensing

Operating Altitude: Sea Level to 8,000 feet

Operating Temperature: 10 °C to 35 °C

Operating Humidity: 10 to 95% RH, non-condensing

2.5.2 Gas Module 3

Transport and Storage Temperature: -40 °C to +70 °C

Transport and Storage Humidity: 5 to 100%, condensing

Operating Altitude: Sea Level to 8,000 feet

Operating Temperature: 10 °C to 40 °C

Operating Humidity: 10 to 95% RH, non-condensing

a. After storage in a condensing atmosphere, the unit shall before use be kept for more than 24 h in an environ-

ment equivalent to the operating atmosphere.

(in Airway: 0-100% RH, non-condensing)

Gas Module Service Manual Addendum 0070-10-0522 2 - 17

Physical Characteristics Specifications

2.6 Physical Characteristics

2.6.1 Gas Module II

Size: 12.5" wide x 9.6" deep x 4.2" high

(31.7 cm wide x 24.3 cm deep x 10.6 cm high)

Weight: 10.0 lbs. (4.54 kg) max

2.6.2 Gas Module SE

Size: 11.85” wide x 10.0” deep x 4.2” high

(30.1 cm wide x 25.4 cm deep x 10.6 cm high)

Weight: 9.6 lbs. (4.35 kg) max

2.6.3 Gas Module 3

Size: 11.9” wide x 10.4” deep x 3” high

Weight: 6.2 lbs (2.8 kg) max

2.7 Agency Compliance

The Gas Module is registered with CSA-Canada

The Gas Module complies with the requirements of the medical device directive 93/42/EEC.

The Gas Module is designed to comply with the following industry standards:

2.7.1 Gas Module II

CSA C22-2 No. 125-M 1984 IEC 601-2-30: 1995

UL 544, Third Edition IEC 601-2-34: 1994

IEC 601-1: 1988/EN60601-1:1990 ISO 9919: 1992

IEC 601-2-27: 1994 ISO 9918: 1993

(30.16 cm wide x 26.35 cm deep x 7.63 cm high)

EN60601-1-2: 1995

2 - 18 0070-10-0522 Gas Module Service Manual Addendum

Specifications Agency Compliance

2.7.2 Gas Module SE

Performance: EN ISO 21647:2004

Safety standards: IEC 60601-1:1988 +A1:1991 +A2:1995

UL 2601-1:1997

CSA Standard C22.2 No. 60601.1M90

EN60601-1-1:2001/IEC 60601-1-1:2000

EN60601-1-4:1996 + A1:1999/ IEC 60601-1-4:1996 + A1:1999

EN ISO 14971:2000 + A1:2003

EMC standards: IEC 60601-1-2:Ed. 2.1

Mechanical stress: IEC 60068-2-6 Fc Sinusoidal Vibration

IEC 60068-2-27 Shock

IEC 60068-2-29 Eb Bump

IEC 60068-2-32 Ed Drop

IEC 60068-2-64 Broad Band Random Vibration

ISO 2244 Shock

Temperature and humidity stress: IEC 60068-2-1 Ab, Ad

IEC 60068-2-2 Bb, Bd

IEC 60068-2-14 Na, Nb

IEC 60068-2-30 Db

IEC 60068-2-56 Cb

2.7.3 Gas Module 3

EN 60601-1/IEC 60601-1+A1+A2 UL 60601-1

CAN/CSA–C22.2 NO. 601.1-M90 EN 60601-1-1 / IEC 60601-1-1

EN 60601-1-4 / IEC 60601-1-4 EN ISO 21647

2.7.3.1 Safety designations per IEC 60601-1

Type of protection against electrical shock: Class 1 Equipment

Degree of protection against electric shock: Type BF Applied Part

Gas Module Service Manual Addendum 0070-10-0522 2 - 19

Agency Compliance Specifications

Supply Connection: 100 – 240 VAC

50 – 60 Hz

10 W

0.22 – 0.10 A

Mode of Operation: Continuous

Protection Against Hazards of Explosion: Not Protected (ordinary)

Protection Against Ingress of Liquids: Not Protected (ordinary)

Degree of Electrical Connection between Equipment and Patient:

Equipment designed as non-electrical connection to the patient

Degree of Mobility: Transportable, Intra-Hospital

WARNING: Equipment not suitable for use in the presence of a

flammable anesthetic mixture with air or with nitrogen or nitrous oxide.

WARNING: Do not connect devices that are not specified as part of the

system.

NOTE: If an MPSO (Multiple Portable Socket Outlet) is used with the

system, the maximum permitted load is 1.42 Amps. Do not connect electrical equipment that has not been supplied as part of the system.

2 - 20 0070-10-0522 Gas Module Service Manual Addendum

3.0

Repair Information

Contents of this chapter .................................................................... Page

3.1 Introduction .............................................................................. 3-1

3.2 Safety Precautions .................................................................... 3-2

3.3 Troubleshooting ........................................................................ 3-2

3.3.1 General Troubleshooting Guidelines ....................................... 3-2

3.3.2 Gas Module Technical Troubleshooting ................................... 3-3

3.3.3 Patient Spirometry Trouble Shooting ...................................... 3-6

3.3.4 Exchange Program ................................................................ 3-7

3.4 Equipment and Special Tools Required ...................................... 3-8

3.5 Disassembly Instructions ........................................................... 3-9

3.6 Mounting Hardware and Accessories ........................................ 3-13

3.6.1 Passport XG/Gas Module Mounting ...................................... 3-13

3.6.2 Expert/Gas Module Mounting ................................................ 3-15

3.6.3 Passport 2/Spectrum/Spectrum OR Gas Module Mounting ..... 3-17

3.1 Introduction

This chapter of the Service Manual provides the necessary technical information to perform repairs to the instrument. The most important prerequisites for effective troubleshooting are a thorough understanding of the instrument functions, as well as an understanding of the theory of operation. Therefore, if necessary, refer to the Patient Monitoring Operating Instructions which describes the instrument functions and features, and refer to Chapter 2.0 of this manual which provides a theory of operation.

Gas Module Service Manual Addendum 0070-10-0522 3 - 1

Safety Precautions Repair Information

3.2 Safety Precautions

In the event that the instrument covers are removed, observe the following warnings and general guidelines.

A. Do not short component leads together.

B. The troubleshooting charts are not intended as a rapid course on how to repair devices

of this type. Rather, they are intended as a guide for qualified technical personnel only. The instrument covers must not be removed by other than technically qualified personnel who have received supplementary instructions regarding maintenance of medical electronic equipment or have equivalent experience in this area.

3.3 Troubleshooting

3.3.1 General Troubleshooting Guidelines

In an instrument as complex as this, it is virtually impossible to list each and every potential problem and appropriate action. Any given problem, however, can be effectively identified through an understanding of the instrument features and the theory of operation. These are prerequisites for repair. If necessary, read the Operating Instructions Manual and study the theory of operation presented in Chapter 2.0 of this manual. The benefits of the time spent reading and absorbing this information is generally realized by a reduction in repair time and, ultimately, in the overall experience of service personnel.

1. IDENTIFY THE PROBLEM. Due to the wide ranges of potential symptoms, certain

problems may be more subtle than others. One approach to trouble-shooting is to set-up the instrument for testing as described in Chapter 5.0 and attempt testing. If successful, there is a reasonable assurance that there is no problem. By contrast, the fact that a particular test is not successful is generally indicative of a failure in that specific area.

2. AVOID SHORTING COMPONENT LEADS. During repair procedures, it can

become tempting to make a series of quick measurements. Always turn off the power before connecting and disconnecting test leads and probes. The accidental shorting of component leads can easily over stress components, resulting in a second unnecessary failure (aside from creating a possible safety risk).

3. USE THE PROPER EQUIPMENT. The equipment listed in Section 5.3 is suggested to

fulfill a wide range of troubleshooting requirements. Use a soldering iron of the appropriate wattage for a given job. For example, use a pencil-type iron (25 watts max.) for repairs to printed wiring boards and a pistol-grip (75 watts) for repairs requiring this much power. Do not use the high powered iron to repair the printed wiring boards as the conductors will lift from the board under the extreme heat, thus ruining it.

4. CLEAN THE REPAIR AREA. After soldering operations, clean off the repaired area

with alcohol and a stiff hair brush. This will remove residual solder flux, making the repaired area more visible for inspection and returning the instrument to its original, neat appearance. Removal of the flux will also facilitate making electrical measurements in the affected area.

3 - 2 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Troubleshooting

3.3.2 Gas Module Technical Troubleshooting

To begin the technical troubleshooting session perform the following steps first:

1. Check that the line voltage cable is plugged in securely, the power switch is set to 1

(ON), and the green front panel lamp is illuminated.

2. Check that the interface cable is installed correctly and securely to both the Gas Module

and the display monitor.

3. Substitute a fully operational display monitor and interface cable to eliminate them as

possible causes of the problem. If the problem persists, it can be assumed that the Gas Module is causing the problem.

4. Consult the table below for specific error conditions and error messages.

5. Before replacing any components on the Gas Module II, Gas Module SE, and Gas

Module SE with Spirometry, verify that all power supply voltages are present and that the +5V and +12V supplies are calibrated. Refer to section 5.0 for more details on power supply calibration.

STATUS MESSAGES AND OTHER SYMPTOMS

GM: Warming up message appears for too long. The warm-up period should last for approximately two (2) minutes.

GM: Agent Warming Up message appears for too long. The warm-up period should last for approximately five (5) minutes.

SOLUTION (STEP 1)

Check all connections and patient accessories, Turn the unit off and on again.

SOLUTION (STEP 2)

Replace the Interface board.

SOLUTION (STEP 3)

If the Interface board does not solve the problem, replace the M-GAS module.

Does not apply to Gas Module 3.

GM: Exhaust Blocked Check for obstruction

of the Exhaust port. Remove any tube that may be obstructing.

GM: Mixed Agents Verify that one agent

is being applied. Has an agent vaporizer been incorrectly filled?

GM: Agent Mismatch The agent labeled on

the monitor is not the same as the agent applied. To automatically identify the applied agent, select Auto-ID from the Gas Menu.

Gas Module Service Manual Addendum 0070-10-0522 3 - 3

Visually inspect the tubing in and around the M-GAS module.

Replace the M-GAS Module.

Replace the defective pneumatic component.

If the M-GAS module does not solve the problem, replace the interface board.

Troubleshooting Repair Information

STATUS MESSAGES AND OTHER SYMPTOMS

GM: Unknown Agent An non-recognizable

GM: Air Leak This message

GM: Pump Off message appears. No sound from the pump is heard.

GM: Replace Trap message caused by a partial blockage in the water trap.

GM:... Uncalibrated the identified channel is not able to display accurate data.

GM: Occlusion Replace the sample

GM: Cannot Zero... Retrying

SOLUTION (STEP 1)

agent (Halothane, Isoflurane, Enflurane, Desflurane or Sevoflurane) is being applied.

indicates that the moisture trap is not connected or an internal leak exists.

Sample Catheter not connected or disconnected

Moisture Trap may not be seated

Monitor turned off or in Standby mode for an extended period with Gas Module turned on.

This happens when a leak has been detected for more than 45 seconds. Restart the pump via the Gas Menu.

The flow rate fell below 150 mL/ minute. Replace the water trap.

Calibrate that channel or the entire group of gas channels.

line. If the message persists with the sample line removed, replace the water trap.

Retry calibration. See the Operating Instructions for details. Try calibrating each channel individually.

SOLUTION (STEP 2)

Replace the M-GAS Module.

Reinstall the moisture trap. If GM: Pump Off appears, restart the pump via the Gas Menu.

Ensure Sample Catheter is connected and restart pump from the monitor Gas Menu, if needed.

Re-seat trap and restart pump from the monitor Gas Menu, if needed.

Restart pump from the monitor Gas Menu

Replace the Interface board.

Replace the M-GAS Module.

Visually inspect the tubing in and around the M-GAS module

Replace the M-GAS Module.

SOLUTION (STEP 3)

If the M-GAS module does not solve the problem, replace the interface board.

Replace the M-GAS module.

Replace Sample Catheter

Replace Moisture Trap

Turn both Gas Module and monitor off, then on again.

If the Interface board does not solve the problem, replace the M-GAS module.

If the M-GAS module does not solve the problem, replace the interface board.

Replace the defective pneumatic component. Check exhaust line for blockage and clear if possible.

If the M-GAS module does not solve the problem, replace the interface board.

3 - 4 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Troubleshooting

STATUS MESSAGES AND OTHER SYMPTOMS

GM: Disconnected Verify that a fully

SOLUTION (STEP 1)

operational monitor and interface cable is attached. Ensure the

SOLUTION (STEP 2)

Replace the Interface board.

SOLUTION (STEP 3)

If the Interface board does not solve the problem, replace the

M-GAS module. line cord is plugged in and the power switch is turned on.

GM: Failed An internal failure

exists.

Replace the Interface board.

If the Interface board

does not solve the

problem, replace the

M-GAS module.

Erroneous concentration for CO

, N2O, O2, or

Agent is suspected.

Check the value of each gas channel using a precision calibration gas can.

Replace the M-GAS Module.

If the M-GAS module

does not solve the

problem, replace the

interface board. See the Operating Instructions for gas channel specifications. If necessary, calibrate all gas channels or the individual channels that are out of specification.

Erroneous display of concentrations for CO

, N2O, O2 or

Agent are suspected.

Measure the parameters outputs while testing with a calibrated standard cal gas can. Are there any leak messages?

1. If a “Leak” message appears, inspect all pneumatic tubes in and around the MGAS module.

2. If a “Leak” message

If calibration is

impossible, replace

the M-GAS module.

does not appear, try to calibrate each gas channel.

No CO a patient breathing

response to

Sample line or moisture trap is blocked, loose, or improperly connected,

Replace the Interface board.

If the Interface board

does not solve the

problem, replace the

M-GAS module. or the moisture trap is full. Reconnect or replace related accessories.

Sudden increase in gas display.

Moisture Trap malfunction. Replace it.

Replace the Interface board.

If the Interface board

does not solve the

problem, replace the

M-GAS module.

Abnormally high (or low) responses to all gases, or intermittent or sudden occlusion message.

Check that the sample line or moisture trap is not blocked, loose, or improperly connected. Reconnect or replace

Replace the Interface board.

If the Interface board

does not solve the

problem, replace the

M-GAS module.

related accessories.

GM: Zero Error Remove any tube that

may be connected to the air intake port on the rear panel. Retry

Replace the M-GAS Module.

If the M-GAS module

does not solve the

problem, replace the

interface board. calibration.

Gas Module Service Manual Addendum 0070-10-0522 3 - 5

Troubleshooting Repair Information

STATUS MESSAGES AND OTHER SYMPTOMS

GM: Sampling Error Check the cal gas

GM: Zero in Progress This message should

SOLUTION (STEP 1)

canister contents. Ensure the gas regulator is operating in the green zone throughout the calibration. Retry calibration.

last approximately 20 seconds.

SOLUTION (STEP 2)

Visually inspect the tubing for leaks and occlusions.

Replace the M-GAS Module.

SOLUTION

(STEP 3)

Replace the M-GAS

Module.

If the M-GAS module

does not solve the

problem, replace the

interface board.

3.3.3 Patient Spirometry Trouble Shooting

NOTE: Gas Module SE with Spirometry only

PROBLEM

Insp Vt>Exp Vt • Leak in lungs

Exp Vt>Insp Vt • Spirometry tube

Loop overscale • Wrong scale

Monitored volumes <set volumes

POSSIBLE CLINICAL CAUSE

• ET tube cuff leak

POSSIBLE TECHNICAL CAUSE ACTION

• Spirometry tube leak

•Water inside sensor or tubings

•Another side stream gas sampling between sensor and patient

leak

•Water inside sensor or tubings

selected

• Leak between ventilator and sensor

• Check leakages perform leak test

• Change tubings and sensor

• Don’t use active humidification

•Connect gas sampling line only and always to spirometry sensor

• Check leakages perform leak test

• Change tubings and sensor

• Don’t use active humidification

•Change scaling

• Check ventilator connections

3 - 6 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Troubleshooting

PROBLEM

Strongly vibrating loop

Too large or too small volumes

Fluctuating Raw • Mucus in airways

Too high Raw • Kink in tubing

Raw value invalid • Spontaneous breaths

Too high Ppeak • Bronchospasm

Compl value invalid • Spontaneous breaths

POSSIBLE CLINICAL CAUSE

Mucus in ET tube • Water or

or tubing

• Breathing effort against the ventilator

• Patient triggered breaths

• Mucus

• Asthmatic patient

• Bronchospasm

• Spontaneous breaths

• Breathing efforts against the ventilator

• Patient triggered breaths

• Breathing efforts against the ventilator

• Patient triggered breaths

• Patient is coughing

• Patient breaths against the ventilator

• Obstruction in airway

•HME obstructed

POSSIBLE TECHNICAL CAUSE ACTION

• Suction the patient secretions in hoses of sensor

• Wrong mode vs. sensor selection

• Incompatible between selected sensor and sensor used

• Ventilator exp. valve causes fluctuations during exp. flow

•Change dry sensor and/or empty the water from hoses

• Check mode and sensor size

•Clean expiratory valve

3.3.4 Exchange Program

An exchange program for certain assemblies in the instrument is available. In many cases, replacement of the complete assembly will result in the most expedient repairs. See section

4.3 for details concerning the exchange program.

Gas Module Service Manual Addendum 0070-10-0522 3 - 7

Equipment and Special Tools Required Repair Information

3.4 Equipment and Special Tools Required

Description Specification

Volt Meter Standard

Calibration Gas P/N 0075-00-0028

2% DES, 5% CO

Calibration Gas Regulator P/N 0119-00-0166

, 55% O2, 33% N2O

Sample Line for Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Sample Line for Gas Module 3 Adult/Ped: P/N 0683-00-0525-XX

Spirometry Tester P/N 0138-00-0011

P/N 0683-00-0451-XX

Neonate: P/N 0683-00-0524-XX

3 - 8 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Disassembly Instructions

3.5 Disassembly Instructions

3.5.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Before disassembling the unit, perform the following:

1. Power down the Gas Module and remove the AC power cable.

2. Remove the interface cable from the Passport XG, Expert, Passport 2, Spectrum or

Spectrum OR. These instructions do not apply to the Gas Module 3.

3. Perform work on an anti-static mat at a grounded ESD workstation.

NOTE: The numbers in parentheses () refer to the isometric

drawings.

WARNING: Always Remove Power from the Gas Module BEFORE

Disassembly.

The six major assemblies of the Gas Module are: The Power Supply, the Interface board, the front bezel, the main chassis, the Spirometry Module (PVX unit) and the M-GAS module. The M-GAS module’s replaceable components include: the Nafion Tube, the Drive Pump, the Valve Module, and the Fan. The M-GAS anesthetic agent and O board are not available separately or as a sub module. In cases of component failure in these assemblies, replacement M-GAS modules will be available. In addition there are three cables, a dust filter cover, and a front panel moisture trap assembly. This section will detail the most economical way to remove each assembly. Refer to the isometric drawings in section 4.7.

analyzer, and their CPU

A. Removing the Enclosure (10):

WARNING: Remove Power from the Gas Module BEFORE removing the

1. Remove the four screws attaching the Monitor mounting bracket to the Gas Module.

2. Remove the four screws attaching the bottom of the Gas Module’s enclosure to the

NOTE: In the next step, use care not to bend or distort the EMC

3. Slide the enclosure back to expose the internal electronics.

4. To re-install, perform the above steps in the reverse order.

B. Replacing the Power Supply (26):

1. Remove the four screws attaching the Power Supply assembly to the chassis.

2. Slide the Power Supply assembly out the open side of the chassis.

3. Unplug the two keyed connectors on the Power Supply assembly.

4. Remove the clear plastic shield (13) and retain to install on the replacement part.

5. To install the replacement part, perform the above steps in the reverse order.

Enclosure.

chassis (11).

guard fingers while sliding the enclosure.

Gas Module Service Manual Addendum 0070-10-0522 3 - 9

Disassembly Instructions Repair Information

C. Replacing the Line Voltage Receptacle (20):

1. Remove the two screws attaching the line voltage receptacle to the chassis.

2. Remove the spade lugs from the rear of the line voltage receptacle, noting each one’s

position. When installing the replacement part, reinstall the spade-lugged wired on to the terminals they were removed from.

3. To install the replacement part, perform the above steps in the reverse order.

D. Replacing the Gas Module II Line Voltage Power Switch (21)

1. Remove the spade lugs from the line voltage power switch, noting each one’s position.

When installing the replacement part, reinstall the spade-lugged wired on to the terminals they were removed from.

2. The line voltage power switch is snapped into the rear chassis. To release the switch,

pinch the plastic retainers and push the switch out.

3. To install the replacement part, perform the above steps in the reverse order.

E. Replacing the Gas Module SE Line Voltage Power Switch (21)

1. Remove the spade lugs from the line voltage power entry receptacle on the rear panel,

noting each one’s position. When installing the replacement part, reinstall the spadelugged wires onto the terminals they were removed from.

2. Remove the line voltage power switch connector from the power supply and remove

the ground wire lug from the chassis.

3. Remove the PVX unit (see step O).

4. Remove the Front Bezel (see step J).

5. Remove the two screws holding the switch to the Front Bezel.

6. To install the replacement part, perform the above steps in reverse order.

F. Replacing the Interface Board (1):

1. Remove the two jack-posts attaching the rear panel interface connector to the rear

panel. This interface connector is part of the Interface Board.

2. Remove the two screws (Gas Module II) or 1 screw (Gas Module SE) attaching the

Interface Board to the Interface board bracket.

3. Unplug the Power Supply Interface Board Cable from the Interface Board.

4. Unplug the 26 pin cable connector.

5. To install the replacement part, perform the above steps in the reverse order.

G. Replacing the Power Supply to Interface Board Cable (2):

1. Unplug the Power Supply to Interface cable at the Power Supply assembly

2. Unplug the Cable at the Interface board.

3. Carefully pull the Cable through the M-GAS module’s sub-chassis and through the

cable retainer on the rear of the chassis.

4. To install the replacement part, perform the above steps in the reverse order.

3 - 10 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Disassembly Instructions

H. Replacing the M-GAS Module (4):

1. Remove the shield, from the chassis, that exposes the M-GAS module Interface board.

2. Remove the four screws attaching the M-GAS module’s sub-chassis to the main chassis.

3. Lift the M-GAS until the (M-GAS) rear connector comes in contact with the rear panel

of the chassis.

4. Tilt the M-GAS module slightly to release it’s rear panel connector.

5. Unplug the M-GAS’s rear panel connector.

6. Remove the four pneumatic tubes that connect to the chassis fittings. Note the position

of each tube.

7. To install the replacement part, perform the above steps in the reverse order.

I. Replacing Specific Parts of the M-GAS Module (Pump, Fan, Valve Module):

See “L. Preventive Maintenance Items:” for Nafion Tube replacement details

The agent analysis sensor and O

sensor and the Main CPU board are a matched set and

must be replaced as an assembly. Problems in these areas will require replacing the M-GAS assembly. Specific parts may be replaced.

1. Remove the M-GAS module from the chassis. Follow the steps in section H for details.

2. Remove the five, 1/4 inch screws that attach the M-GAS sub-chassis to the inner-sub-

chassis.

3. Remove the single, 1 1/4 inch long screw (that passes through two standoffs) that

attaches the circuit board to the sub-chassis.

4. Carefully lift the inner-sub-chassis away from the sub-chassis enough to unplug the O

sensor’s two cable connectors. Be sure to note the orientation of these connectors.

5. The Pump (17) is attached to the inner-sub-chassis with a tie-wrap. Cut the tie-wrap to

remove it.

6. The Fan (15) is attached by four screws, accessible through access holes in the fan’s

four corners.

7. The Valve module snaps into a spring-steal bracket of the inner-sub-chassis.

8. When disconnecting any pneumatic component, always note the orientation of that

component’s pneumatic tube connections.

9. To install the replacement part, perform the above steps in the reverse order.

J. Replacing the Front Bezel (6):

1. Remove the M-GAS, Interface board, PVX unit and the Power Supply assemblies. See

sections B, F, H and O for details.

2. Remove the four large screws holding the Bezel to the Main Chassis.

3. Pull the front Bezel away from the chassis.

4. To install the replacement part, perform the above steps in the reverse order.

K. Replacing the Chassis (11):

1. Replacing the main chassis requires removing each assembly. Remove each assembly

in the order given in these instruction.

2. To install the replacement part, perform the above steps in the reverse order.

Gas Module Service Manual Addendum 0070-10-0522 3 - 11

Disassembly Instructions Repair Information

L. Preventive Maintenance Items:

The PM items are; The Moisture Trap (7), The Nafion Tube (25), the *CO

Absorber (30),

and the O2 Sensor Filter (24). Refer to the isometric drawing for details.

M. The Nafion Tube can be replaced without disassembling the inner-sub-chassis:

1. Remove the M-GAS module. See Section H for details.

2. Locate the cut-out window on the bottom of the M-GAS.

3. Using a tool, pull the Nafion tube away from its pneumatic port on the valve module.

4. Remove the other end of the Nafion tube from the Moisture Trap housing.

*CO

absorber will not be present in units S/N 4314008 or lower.

N. Replacing the Cooling Fan’s Dust Filter (18):

1. Remove the filter cover by pulling it straight out.

2. Replace the filter or rinse the filter with mild soap and water solution.

NOTE: Ensure the filter material dries completely before re-

installing.

O. PVX unit

1. Disconnect the ribbon cable and power connector (4 black wires) from the PVX unit.

2. Detach the PVX unit from the front panel (1 screw).

3. To install replacement part, perform the above steps in reverse order.

3.5.2 Gas Module 3

Before disassembling the unit, perform the following:

1. Power down the Gas Module and remove the AC power cable.

2. Remove the interface cable from the Passport 2, Spectrum or Spectrum OR.

3. Perform work on an anti-static mat at a grounded ESD workstation.

WARNING: Always Remove Power from the Gas Module BEFORE

A. Removing the Enclosure

WARNING: Remove Power from the Gas Module BEFORE removing the

1. Remove the four screws attaching the Monitor mounting bracket to the Gas Module.

2. Remove the four screws attaching the bottom of the Gas Module’s enclosure to the

chassis.

3. Slide the enclosure back to expose the internal modules. Be careful not to damage the

EMC gaskets.

4. To re-install, perform the above steps in the reverse order. Before sliding the enclosure on

inspect the EMC gaskets for damages or wear. Damaged or much worn EMC gaskets must be replaced. Replacement of EMC gaskets is to be performed at factory.

Disassembly.

Enclosure.

3 - 12 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Mounting Hardward and Accessories

3.6 Mounting Hardware and Accessories

3.6.1 Passport XG/Gas Module Mounting

NOTE: For Gas Module II and Gas Module SE only

Refer to the diagrams on the next page for exploded views of the mounting hardware.

The following is a listing of the parts shown on the isometric drawings.

FIGURE NO. DESCRIPTION P/N

1 Gas Module SE 0998-00-0481-01

1 Gas Module II 0998-00-0143

2*Plate 0386-00-0232

3 *10-32 X .31 Flat HD Screws (Qty. of 4) 0216-04-1005

4 External Interface Cable 6’ 0012-00-1278

4 External Interface Cable 24” 0012-00-1082

5 Power Pack AC/DC Universal Input (9" cable) 0014-00-0173-04

6 Y-Shaped Power Cord (Domestic) 0012-00-1081-01

6 Y-Shaped Power Cord (International) 0012-00-1081-02

6 Y-Shaped Power Cord (Britain/Ireland) 0012-00-1081-03

7 8-32 X .375 Flat HD Screws (Qty. of 8) 0212-14-0806

8Plate 0386-00-0156

10 Mounting Bracket 0406-00-0729-01

11 Wall Mount Assembly 0040-00-0232-02

12 Rolling Stand Assembly 0040-00-0232-01

* Mounting Plate and screws are part of rolling stand or wall mount.

Gas Module Service Manual Addendum 0070-10-0522 3 - 13

Mounting Hardward and Accessories Repair Information

Detail A Shown without J1 Expansion Box

Detail C

Detail B

FIGURE 3-1 Passport XG/Gas Module Mounts

3 - 14 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Mounting Hardward and Accessories

3.6.2 Expert/Gas Module Mounting

NOTE: For Gas Module II and Gas Module SE only

Refer to the diagrams on the next page for exploded views of the mounting hardware.

The following is a listing of the parts shown on the isometric drawings.

FIGURE NO. DESCRIPTION P/N

1. Screw, Panhead, Metric (4) 0211-13-0410

2. Plate, Mounting Expert/Gas Module 0386-00-0245

3. Screw, Plate Mounted on Gas Module (4) 0212-14-0806

4. Cable Assembly Interface Expert/Gas Module, 14” 0012-00-1213-01

4. Cable Assembly Interface Expert/Gas Module, 72” 0012-00-1213-02

5. Channel, Mounting Expert/Gas Module 0436-00-0154

6. Gas Module II 0998-00-0143

6. Gas Module SE 0998-00-0481-01

7. Plate, Mounting 0386-00-0232

8. 10-32 X .31 Flat Head Screws (4) 0216-04-1005

9. Wall Mount w/Arm 0436-00-0119

10. Expert Rolling Stand 0436-00-0123

11. Expert Main Unit 0997-00-0471-01

11. Expert Display 0997-00-0480-01

12. “Y” Shaped Power Cord (Domestic) 0012-00-1081-01

12. “Y” Shaped Power Cord (International) 0012-00-1081-02

12. “Y” Shaped Power Cord (Britain/Ireland) 0012-00-1081-03

Gas Module Service Manual Addendum 0070-10-0522 3 - 15

Mounting Hardward and Accessories Repair Information

FIGURE 3-2 Expert / Gas Module Mounts

3 - 16 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Mounting Hardward and Accessories

3.6.3 Passport 2/Spectrum/Spectrum OR Gas Module Mounting

3.6.3.1 Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Refer to the diagrams on the next page for exploded views of the mounting hardware.

The following is a listing of the parts shown on the isometric drawings.

FIGURE NO. DESCRIPTION P/N

1 Gas Module SE 0998-00-0481-01

1 Gas Module II 0998-00-0143

2 *Plate for Gas Module II and Gas Module SE 0386-00-0232

3 *10-32 X .31 Flat HD Screws (Qty. of 4) 0216-04-1005

4 External Interface Cable12” 0012-00-1276-01

4 External Interface Cable 6’ 0012-00-1276-02

5Screws (Quantity of 4) 0212-17-0606

6 Y-Shaped Power Cord (Domestic) 0012-00-1081-01

6 Y-Shaped Power Cord (International) 0012-00-1081-02

6 Y-Shaped Power Cord (Britain/Ireland) 0012-00-1081-03

7 8-32 X .375 Flat HD Screws (Qty. of 4) 0212-14-0806

8 Stationary Mounting Bracket (with screws) 0040-00-0299-02

10 Mounting Plate 0436-00-0160

11 Wall Mount Assembly 0040-00-0232-02

12 Rolling Stand Assembly 0040-00-0232-01

* Mounting Plate and screws are part of rolling stand or wall mount.

Gas Module Service Manual Addendum 0070-10-0522 3 - 17

Mounting Hardward and Accessories Repair Information

FIGURE 3-3 Passport 2/Spectrum/Spectrum OR Gas Module Mounts

3 - 18 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Mounting Hardward and Accessories

3.6.3.2 Gas Module 3

Refer to the diagrams on the next page for exploded views of the mounting hardware.

The following is a listing of the parts shown on the isometric drawings.

FIGURE NO. DESCRIPTION P/N

1 Gas Module 3 0998-00-1900-01

2 *Plate for Gas Module 3 0386-00-0344

3 Screw, M5 X 8 mm 0211-03-5008

4 External Interface Cable12” 0012-00-1276-01

4 External Interface Cable 6’ 0012-00-1276-02

5Screws (Quantity of 4) 0212-17-0606

6 Y-Shaped Power Cord (Domestic) 0012-00-1081-01

6 Y-Shaped Power Cord (International) 0012-00-1081-02

6 Y-Shaped Power Cord (Britain/Ireland) 0012-00-1081-03

7 Screws, M4 X 8 mm (Qty. of 4) 0211-04-4008

8 Stationary Mounting Bracket (with screws) 0040-00-0299-02

10 Mounting Plate 0436-00-0160

11 Wall Mount 0436-00-0061-01

* Includes 4 screws, Part Number 0211-03-5008

Gas Module Service Manual Addendum 0070-10-0522 3 - 19

Mounting Hardward and Accessories Repair Information

FIGURE 3-4 Passport 2/Spectrum/Spectrum OR Gas Module Mounts

3 - 20 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Gas Module II/Gas Module SE Accessories

Water Trap Assembly

p/n 0202-00-0129

Gas Scavenging Adapter

p/n 0997-00-0923

(Quick Connect)

p/n 0997-00-0984

(Luer Connector)

Mask Elbow

ET Tube Adapter

p/n 0683-00-0242-12

10 Foot Patient Sample Line

p/n 0683-00-0451-10

10 Foot Patient Sample Line

p/n 0683-00-0451-10

Straight Tee

ET Tube Adapter

p/n 0683-00-0242-22

7 Foot Nasal Cannula

CO2 Sample

p/n 0683-00-0424-10

7 Foot Nasal Cannula

CO2 Sample / O2 Delivery

p/n 0683-00-0452-10

Calibration Gas regulator

p/n 0119-00-0166

Calibration Gas

p/n 0075-00-0028

3.7 Gas Module II/Gas Module SE Accessories

FIGURE 3-5 Gas Module II/Gas Module SE Accessories

Gas Module Service Manual Addendum 0070-10-0522 3 - 21

Gas Module SE with Spirometry Accessories Repair Information

Water Trap Assembly

P/N 0202-00-0129

Gas Scavenging Assembly

P/N 0997-00-0923

(Quick Connect)

P/N 0997-00-0984

(Luer Connector)

Mask Elbow ET Tube Adapter P/N 0683-00-0242-12

10 Foot Patient Sample Line P/N 0683-00-0451-10

Stra ight Tee ET Tube Adapter P/N 0683-00-0242-22

7 Foot Nasal Cannula Co2 Sample P/N 0683-00-0424-10

7 Foot Nasal Cannula CO2 Sample / O2 Delivery P/N 0683-00-0452-10

Calibration Gas regulator P/N 0119-00-0166

Calibration Gas P/N 0075-00-0028

10 Foot Patient Sample Line

P/N 0683-00-0451-10

Spirometry Tube

P/N 0004-00-0075-005

Spirometry Sensor

(Adult Reusable)

P/N 0600-00-0073-001

(Adult Disposable)

P/N 0600-00-0075-050

(Pediatric Reusable)

P/N 0600-00-0074-001

3.8 Gas Module SE with Spirometry Accessories

FIGURE 3-6 Gas Module SE with Spirometry Accessories

3 - 22 0070-10-0522 Gas Module Service Manual Addendum

Repair Information Gas Module 3 Accessories

DRYLINE Water Trap Assembly

Adult

(Qty 10) p/n 0202-00-0182-10

Neonate (Qty 10) p/n 0202-00-0181-10

/Pediatric

Gas Scavenging Adapter

p/n 0997-00-0923

p/n 0997-00-0984

Mask Elbow

ET Tube Adapter

p/n 0683-00-0242-12

2.5 meter DRYLINE Patient Sample Line

Adult/Pediatric (Qty 25) p/n 0683-00-0525-25

Neonate (Qty 25) p/n 0683-00-0524-25

Stra ight Tee

ET Tube Adapter

p/n 0683-00-0242-22

7 Foot Nasal Cannula

CO2 Sample

p/n 0683-00-0424-10

7 Foot Nasal Cannula

CO2 Sample / O2 Delivery

p/n 0683-00-0452-10

Calibration Gas regulator

p/n 0119-00-0166

Calibration Gas

p/n 0075-00-0028

3.9 Gas Module 3 Accessories

FIGURE 3-7 Gas Module 3 Accessories

Gas Module Service Manual Addendum 0070-10-0522 3 - 23

Gas Module 3 Accessories Repair Information

This page intentionally left blank.

3 - 24 0070-10-0522 Gas Module Service Manual Addendum

4.0

Replacement Parts

Contents of this chapter .................................................................... Page

4.1 Introduction .............................................................................. 4-1

4.2 Available Replacement Parts and Sub-Assemblies ..................... 4-1

4.3 Exchange Program ................................................................... 4-2

4.4 Replacement Parts Pricing Information ..................................... 4-2

4.5 Ordering Information ............................................................... 4-3

4.6 Abbreviations ........................................................................... 4-4

4.7 Isometric Drawing and Parts Lists ............................................. 4-5

4.1 Introduction

This chapter of the Service Manual provides information necessary to identify the replacement parts and assemblies of the instrument.

4.2 Available Replacement Parts and Sub-Assemblies

The parts listings which follow are divided into two sections. The Isometric Drawings and the accompanying parts lists identify the available chassis mounted components.

Gas Module Service Manual Addendum 0070-10-0522 4 - 1

Exchange Program Replacement Parts

4.3 Exchange Program

An exchange policy for the M-Gas Module is available. This program may provide the most expedient method of servicing the equipment. A standard charge for this service is made. Contact the Service Department for details concerning this exchange program.

Many circuit boards make extensive use of multilayer technology and high density packaging. Individual component replacement is not recommended on these boards unless the technician is properly equipped to repair multilayer circuit boards.

Circuit boards, returned as parts of the exchange program, that show evidence of improper repair techniques and are damaged in the process are not considered for exchange. Damaged boards will be invoiced at full value and no exchange credit will be applied.

4.4 Replacement Parts Pricing Information

Current parts prices and exchange charges can be determined by contacting our Order Entry Department.

4 - 2 0070-10-0522 Gas Module Service Manual Addendum

Replacement Parts Ordering Information

4.5 Ordering Information

Replacement parts and assemblies are available from Mindray DS USA, Inc. Please follow these guidelines when ordering replacement items for the instrument.

1. Include the Model and Serial Number of the instrument.

2. Include the Part Number exactly as it appears in the Parts List under the column, “Part

Number.”

3. Include a description of the item.

EXAMPLE ORDERS: (1) ea. P/N 0671-00-0127

PC Board, Interface (Connection C), Gas Module II Serial No. XXXX

(4) ea. P/N 0216-04-1005

Screw, #10-32 x .31 Flat Head,

Gas Module SE Serial No. XXXX

NOTE: Mindray DS USA, Inc. maintains a policy of continuous

development for product improvement and reserves the right to change materials, specifications, and prices without notice.

NOTE: Many components are described with sufficient detail to

permit procurement through local commercial channels. This applies to hardware, such as screws and fasteners, as well as to certain electronic components, such as resistors, capacitors, certain integrated circuits and transistors. However, in some cases, components are selected to meet special performance criteria above and beyond the component manufacturer’s specifications. The use of other components in these applications may result in degradation of reliability or instrument performance characteristics.

Gas Module Service Manual Addendum 0070-10-0522 4 - 3

Abbreviations Replacement Parts

4.6 Abbreviations

The following abbreviations may appear in the parts listings which follow and/or through the manual.

ABBREVIATION TERM ABBREVIATION TERM

A/D Analog to Digital MYLR Mylar

AMP Amplifier NTWK Network

BUF Buffer OP Operational

CAP Capacitor PB Push Button

CC Carbon Composition PIA Peripheral Interface

CER Ceramic POT Potentiometer

CERM Ceramic PRESS Pressure

CNTR Counter PWR Power

CONN Connector RAM Random Access Memory

CONT Controller REC Receiver

CONV Converter RECT Rectangular

CPU Central Processing Unit REG Regulated RES Resistor

DCDR Decoder STG Stage

DIFF Differential STK Stacked

DIA Diastolic SUP Supply

DIO DiodeS SW Switch

D/A Digital to Analog SYST Systolic

ELEC Electrolytic TANT Tantalum

EPROM Erasable Programmable

Read Only Memory

FXD Fixed VAR Variable

I.C. Integrated Circuit VIA Versatile Interface

INT. CKT. Integrated Circuit XDCR Transducer

KYBD Keyboard XFMR Transformer

LED Light Emitting Diode XSTL Crystal

MF Metal Film XSTR Transistor

MONO Monostable

TRANS Transistor

TRANSIS Transistor

Adaptor

Adapter

4 - 4 0070-10-0522 Gas Module Service Manual Addendum

Replacement Parts Isometric Drawing and Parts Lists

4.7 Isometric Drawing and Parts Lists

Gas Module II and Gas Module SE

FIGURE NO. DESCRIPTION P/N

1 PC Board, Interface Gas Module II (Connection C) 0671-00-0127

1 PC Board, Interface Gas Module SE (Connection C) 0671-00-0226

2 Gas Module II Cable, Power (Connection B) 0012-00-1086

2 Gas Module SE Cable, Power (Connection B) 0012-00-1408

3 Gas Module II Cable, Interface (Connection C) 0012-00-1088

3 Gas Module SE Cable, Interface (Connection C) 0012-00-1409

4 Gas Module SE Gas Unit, M-Gas 0992-00-0157

5 Housing, Moisture Trap 0380-00-0337

6 Gas Module II Front Bezel 0200-00-0319

6 Gas Module SE Front Bezel 0200-00-0326

7 Water Trap Assembly Gas Module II and Gas Module SE 0202-00-0129

8 LED Cable (Connection A) 0012-00-1393

9 PVX Module (Spirometry) 0992-00-0156

10 Enclosure Gas Module II 0202-00-0128

10 Enclosure Gas Module SE 0202-00-0148

11 Chassis Gas Module II 0441-00-0099

11 Chassis Gas Module SE 0441-00-0174

12 Support Bracket, Interface PC Board Gas Module II 0406-00-0735

13 Guard, Power Supply Board 0337-00-0114

14 Shield (EMC) 0337-00-0115

15 Fan 0119-00-0165

16 Tubing Kit Includes: 0040-00-0233

Tubing, Outer, Exhaust - Connection H (PVC, 2.70 mm - ID)

Tubing, Inner, Exhaust - Connection H (PE, 1.65 mm - ID)

Tubing, sump inlet - Connection G (PE, 0.30 mm - ID)

Tube, Connecting - Connection D (Silicone, 1.70 mm - ID)

17 Pump 0104-00-0020

18 Filter, Dust 0378-00-0040

19 Cover, Dust Filter Gas Module II 0198-00-0025

19 Cover, Dust Filter Gas Module SE 0198-00-0048

20 Input Receptacle, AC Mains 0131-00-0245

21 Gas Module II Switch, DPST, AC Mains 0261-00-0193

21 Gas Module SE Switch, DPST, AC Mains 0012-00-1410

22 Fuse, 1Amp, 250 V, 5x20mm 0159-00-0038

23 Ground Lug, Equipotential 0124-00-0104-01

23A Flat washer, Equipotential Lug 0124-00-0104-02

23B Lock washer, Equipotential Lug 0124-00-0104-03

* Numbers for metric screws correspond to nominal size and length in millimeters. ** Numbers for metric nuts correspond to nominal nut (thread) diameter. *** DIN is the German Industrial Standard.

Gas Module Service Manual Addendum 0070-10-0522 4 - 5

Isometric Drawing and Parts Lists Replacement Parts

FIGURE NO. DESCRIPTION P/N

23C Nut, Equipotential Lug 0124-00-0104-04

24 Filter, O

25 Tube, Nafion (Connection F) 0008-00-0307

26 PC Board, Power Supply 0014-00-0183

27 Foot (Diameter=22.2 mm, Height=10.0 mm) 0348-00-0186

28 Exhaust Port (Connection H) 0103-00-0453

30 CO

31 Power Switch Button 0200-00-0327

32 Port Cover 0198-00-0047

N/S Enclosure Label Gas Module II 0334-00-1468

N/S Enclosure Label Gas Module SE 0334-00-2561

N/S Rear Chassis Label Gas Module II 0334-00-2545

N/S Rear Chassis Label Gas Module SE 0334-00-2560

* Numbers for metric screws correspond to nominal size and length in millimeters. ** Numbers for metric nuts correspond to nominal nut (thread) diameter. *** DIN is the German Industrial Standard.

Absorber 0378-00-0046

0378-00-0041

Gas Module 3

ASSOCIATED FIG NO. DESCRIPTION

1 Exchange Multigas &

2 Receptacle with tubing D, E For GM3 S/N below

2a Receptacle with tubing D, E For GM3 S/N above

N/S O-ring kit DRYLINE

3 Nafion Assembly GM3 E For GM3 S/N below

3a Nafion Assembly GM3 E For GM3 S/N above

4AION System Tubing

5 SPIRIT Tubing 2,4/3,6

6 EVAC Coupling GM3 F 0103-00-0707

*7 Servomex Cable GM3 C For GM3 S/N below

*7a Servomex Cable GM3 C For GM3 S/N above

*8 AION Cable GM3 G For GM3 S/N below

* Cables not shown. Refer to associated connections.

O2 Analyzer Assembly

Receptacle

PUR 1.4 mm / 2.8 mm

mm PUR

CONNECTION(S)

(IF APPLICABLE)

C, G 0992-00-0290E

A, B, D, F Sold per meter 0008-00-0374

A, B, D, F Sold per meter 0008-00-0375

NOTE P/N

0380-00-0635-02

10001000 only

0380-00-0635-01

10001000 only

0040-00-0453

0008-00-0376-02

10001000 only

0008-00-0376-01

10001000 only

0012-00-1808-02

10001000 only

0012-00-1808-01

10001000 only

0012-00-1809-02

10001000 only

4 - 6 0070-10-0522 Gas Module Service Manual Addendum

Replacement Parts Isometric Drawing and Parts Lists

FIG NO. DESCRIPTION

*8a AION Cable GM3 G For GM3 S/N above

9 Power Inlet GM3 M, N, P 0131-00-0301

10 Fuse Holder GM3 0131-00-0302

11 Power Supply GM3 H, K, L, P 0014-00-0096

*12 Power Cable GM3 K, L, M, N, P 0012-00-1810

*13 Low Voltage Power

14 Communication Board

14a Communication Board

*15 Equipotential Cable

16 Bezel Assembly GM3 J For GM3 S/N below

16a Bezel Assembly GM3 J For GM3 S/N above

17 Power Switch GM3 K, L, M, N 0012-00-1813

18 Sheet Metal Cover

18a Sheet Metal Cover

19 Rubber Feet GM3, set

20 Equipotential

21 EMC Frame / Cage For GM3 S/N above

N/S Water Trap Assembly

22 Screws, Top and

* Cables not shown. Refer to associated connections.

Cable GM3

GM3

of 4

Connector GM3

Adult/Pediatric

Neonate

Bottom Cover

ASSOCIATED

CONNECTION(S)

(IF APPLICABLE)

H 0012-00-1811

C, G, H, J For GM3 S/N below

C, G, H, J For GM3 S/N above

P 0012-00-1812

NOTE P/N

0012-00-1809-01

10001000 only

For GM3 S/N below 10001000 only

For GM3 S/N above 10001000 only

10001000 only

002-000024-00

0671-00-0275

0997-00-0647-02

0997-00-0647-01

0202-00-0185-02

0202-00-0185-01

0202-00-0184-02

0124-00-0149-02

099-000114-00

0202-00-0182-10

0202-00-0181-10

0211-03-4006

Gas Module Service Manual Addendum 0070-10-0522 4 - 7

Isometric Drawing and Parts Lists Replacement Parts

This page intentionally left blank.

4 - 8 0070-10-0522 Gas Module Service Manual Addendum

Isometric Drawing and Parts Lists Replacement Parts

23C

23B

23A

Inside Rear Panel

Rotated View of Gas Assembly

23B

FIGURE 4-1 Isometric Drawing Gas Module II

Gas Module Service Manual Addendum 0070-10-0522 4 - 9

Replacement Parts Isometric Drawing and Parts Lists

23C

23B

23A

Rotated View of Gas Assembly

23B

SCALE 1.000

FIGURE 4-2 Isometric Drawing Gas Module SE

4 - 10 0070-10-0522 Gas Module Service Manual Addendum

Isometric Drawing and Parts Lists Replacement Parts

23C

23B

23A

Rotated View of Gas Assembly

23B

SCALE 1.000

FIGURE 4-3 Isometric Drawing Gas Module SE with Spirometry

Gas Module Service Manual Addendum 0070-10-0522 4 - 11

Replacement Parts Isometric Drawing and Parts Lists

FIGURE 4-4 Isometric Drawing Gas Module 3

4 - 12 0070-10-0522 Gas Module Service Manual Addendum

Isometric Drawing and Parts Lists Replacement Parts

FIGURE 4-5 Isometric Drawing Gas Module 3 Interface Connectors

Gas Module Service Manual Addendum 0070-10-0522 4 - 13

Replacement Parts Isometric Drawing and Parts Lists

This page intentionally left blank.

4 - 14 0070-10-0522 Gas Module Service Manual Addendum

5.0

Calibration

Contents of this chapter .................................................................... Page

5.1 Introduction .............................................................................. 5-1

5.2 Warnings and Guidelines ......................................................... 5-1

5.3 Test Equipment and Special Tools Required ............................... 5-2

5.4 Power-Up Verification ............................................................... 5-2

5.5 Gas Module 3 Pneumatic Leakage Test ..................................... 5-5

5.6 Gas Module 3 Zero Reference Valve Test ................................... 5-5

5.7 Calibration ............................................................................... 5-6

5.8 Gas Module Leakage Current Checks ........................................ 5-21

5.1 Introduction

The following procedures are provided to verify the proper operation, calibration and maintenance of the Gas Module.

5.2 Warnings and Guidelines

In the event that the instrument covers are removed, observe these following warnings and general guidelines:

• Do not short component leads together.

• Perform all steps in the exact order given.

• Use extreme care when reaching inside the opened instrument. Do not contact exposed metal parts which may become live.

• Read through each step in the procedure so it is understood prior to beginning the step.

Gas Module Service Manual Addendum 0070-10-0522 5 - 1

Test Equipment and Special Tools Required Calibration

5.3 Test Equipment and Special Tools Required

Description Specification

Volt Meter Standard

Calibration Gas P/N 0075-00-0028

2% DES, 5% CO

Calibration Gas Regulator P/N 0119-00-0166

, 55% O2, 33% N2O

Sample Line for Gas Module II, Gas Module SE, and Gas Module SE with Spirometry

Sample Line for Gas Module 3 Adult/Ped: P/N 0683-00-0525-XX

Spirometry Tester P/N 0138-00-0011

P/N 0683-00-0451-XX

Neonate: P/N 0683-00-0524-XX

5.4 Power-Up Verification

5.4.1 Passport XG Configuration for Gas Module

The Passport XG must be configured to communicate with the Gas Module. To configure the Passport XG for use with the Gas Module:

1. Turn on the Passport and wait for the “Diagnostics in Progress” message to appear.

2. While the message is displayed press and hold the FREEZE key until the User

Configuration screen appears.

3. Use the down arrow to choose Serial Output Type.

4. Press SELECT to activate the sub-menu.

5. Press either arrow until Gas Module appears in the highlighted area.

6. Press SELECT, then press and hold the EXIT key for three (3) seconds to return to normal

operation.

NOTE: Setting the “Serial Output Type” to any other selection

activates the Passport XG’s on-board CO deactivates the Gas Module.

function and

Electrical Connection and Power On

Verify that the Interface cable is connected between the Passport XG’s J1 connector and the Gas Module’s rear panel Interface connection. Attach a sample line to the front panel water trap inlet. Turn on the Gas Module by switching its power switch to “1”.

5 - 2 0070-10-0522 Gas Module Service Manual Addendum

Calibration Power-Up Verification

Warm Up

The Gas Module begins its warm up by changing the “Disconnected” message to “Warming Up” approximately 15 seconds after turn on. The messages “Warming up”, “Agent Warming Up”, and “Zero in Progress” alternate in the message area for approximately two (2) minutes. After two (2) minutes the CO active. The agent display becomes active after approximately five (5) minutes. Automatic zeroing of all Gas channels will take place at 5, 10, 15 and 30 minutes after turn-on and at 60 minute intervals thereafter.

, N2O, O2, and respiration displays become

5.4.2 Expert Configuration for Gas Module

The Expert must be configured to communicate with the Gas Module. To configure the Expert to be used with the Gas Module perform the following steps:

1. Under the Service Panel of the Expert, set Dip switch #5 to ON to accept Gas Module II

information. Refer to the Expert Operating Instructions, section 2.2 “Main Control Unit” for information on the location of the dip switch.

2. Set the soft switch for the CO

Expert Operating Instructions for more information on the soft switch setting.

3. For more information on the Gas Module Operation with the Expert, refer to section

3.21.2 of the Expert Operating Instructions.

Source to “GAS monitor”. Refer to section 3.29.15 of the

Electrical Connection and Power On

Verify the interface cable is connected between the Expert RS-232C connector and the Gas Module rear panel interface connection. Attach a sample line to the front panel water trap inlet. Turn on the Gas Module by switching it’s power switch to “1”.

Warm Up

The Gas Module begins its warm up by changing the “Disconnected” message to “Warming Up” approximately 15 seconds after turn on. The messages “Warming Up,” “Agent Warming Up” and “Zero in Progress” alternate in the message are for approximately two (2) minutes. After two (2) minutes the CO The agent display becomes active after approximately five (5) minutes. Automatic zeroing of all Gas channels will take place at 5, 10, 15 and 30 minutes after turn-on and at 60 minute intervals thereafter.

, N2O, O2 and respiration displays become active.

Gas Module Service Manual Addendum 0070-10-0522 5 - 3

Power-Up Verification Calibration

5.4.3 Passport 2/Spectrum/Spectrum OR Configuration for the Gas Module

The Passport 2, Spectrum and Spectrum OR must be configured to communicate with the Gas Module as follows:

1. Access the Installation Menu by pressing and holding the DISCHARGE key

(Passport 2/Spectrum®) or the TRENDS key (Spectrum OR™) while powering

ON the monitor.

2. Rotate to the Set up Serial Port 1 menu choice and press the Navigator knob.

3. Rotate to GMII or Gas Module and press the Navigator knob to accept the selection.

4. Rotate to the Save Current menu choice and press the Navigator knob.

5. Powering OFF the monitor. Wait 3 seconds and power ON the monitor.

NOTE: Setting Serial Port 1 to any other selection activates the

monitor's on board CO Module.

function and deactivates the Gas

Electrical Connection and Power On

Verify the Interface cable is connected between the Passport 2/Spectrum/Spectrum OR SP1 connector and the Gas Module's rear panel Interface Connection. Attach a sample line to the front panel water trap inlet. Turn on the Gas Module by switching its power switch to “1”.

Warm Up

Gas Module II, Gas Module SE, and Gas Module SE with Spirometry – The Gas Module begins its warm up by changing the “Disconnected” message to “Warming Up” approximately 15 seconds after turn on. The messages “Warming Up”, “Agent Warming Up” and “Zero in Progress” alternate in the message area for approximately two (2) minutes. Automatic Zeroing of all channels will take place at 2, 4, 10, 15 and 30 minutes after turn on and at 60 minute intervals thereafter.

Gas Module 3 – “Warming Up” is displayed until ISO accuracy is reached (approximately 45 seconds). During this period, two room air reference measurements are taken. Thereafter they occur automatically whenever the bench temperature has changed 1°C. When the Gas Module 3 has reached full accuracy (approximately 10 minutes), reference measurements are taken every 4 hours.

5 - 4 0070-10-0522 Gas Module Service Manual Addendum

Mindray Gas Module User manual

Specifications and Main Features

Frequently Asked Questions

User Manual