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Datex-Ohmeda Inc.
3030 Ohmeda Drive
53707-7550 MADISON, WIS
USA
Tel. +1-608-221 1551, Fax +1-608-222 9147
www.us.datex-ohmeda.com
Datex-Ohmeda Compact Airway modules
TM
S/5
Compact Airway Module, M-CAiOVX (rev. 01)
TM
S/5
Compact Airway Module, M-CAiOV (rev. 03)
TM
S/5
Compact Airway Module, M-CAiO (rev. 02)
TM
S/5
Compact Airway Module, M-COVX (rev. 02)
TM
S/5
Compact Airway Module, M-COV (rev. 03)
TM
S/5
Compact Airway Module, M-CO (rev. 02)
TM
S/5
Compact Airway Module, M-C (rev. 02)
Technical Reference Manual Slot
All specifications are subject to change without notice.
Tel. +358 10 394 11 Fax +358 9 146 3310
Instrumentarium Corp. All rights reserved.
Document No. 800 1009-1
June 2001
Datex-Ohmeda Division,
Instrumentarium Corp.
P.O. Box 900, FIN-00031
DATEX-OHMEDA, FINLAND
www.datex-ohmeda.com
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Summary of Contents for Datex-Ohmeda S/5 M-CAiOVX
- Page 1 Datex-Ohmeda Compact Airway modules Compact Airway Module, M-CAiOVX (rev. 01) Compact Airway Module, M-CAiOV (rev. 03) Compact Airway Module, M-CAiO (rev. 02) Compact Airway Module, M-COVX (rev. 02) Compact Airway Module, M-COV (rev. 03) Compact Airway Module, M-CO (rev. 02) Compact Airway Module, M-C (rev.
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Page 3: Table Of Contents
Table of contents TABLE OF CONTENTS S/5 Compact Airway Modules TABLE OF CONTENTS TABLE OF FIGURES INTRODUCTION 1 SPECIFICATIONS 1.1 General specifications ..........................2 1.2 Typical performance ..........................2 1.2.1 CO ..............................2 1.2.2 O ..............................2 1.2.3 N O ..............................2 1.2.4 Respiration Rate (RR) ........................3 1.2.5 Anesthetic Agents (AA)........................3 1.2.6 MAC ..............................3 1.3 Gas specifications ............................3... - Page 4 6.1.2 M-CAiOVX rev. 00, M-CAiOV rev. 02, M-CAiO rev. 01, M-COVX rev. 01, M-COV rev. 02, M-CO rev. 01, M- C rev. 01..............................49 6.1.3 S/5 M-CAiOVX rev. 01, S/5 M-CAiOV rev. 03, S/5 M-CAiO rev. 02, S/5 M-COVX rev. 02, S/5 M-COV rev. 03, S/5 M-CO rev. 02, S/5 M-C rev. 02 ....................49 6.1.4 Front panel stickers ........................49...
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Page 5: Table Of Figures
Table of contents TABLE OF FIGURES Figure 1 TPX sensor principle..........................8 Figure 2 Absorbance of N O and CO ........................9 Figure 3 Infrared absorbance of AAs ........................9 Figure 4 measurement principle ........................10 Figure 5 Absorber ............................14 Figure 6 Gas sampling system layout, M-C......................15 Figure 7 Gas sampling system layout, M-CAiOV, M-CAiOVX, M-CAiO, M-COVX, M-COV, M-CO......16 Figure 8... - Page 6 Datex-Ohmeda S/5 monitors Document No. 800 1009-1...
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Page 7: Introduction
Compact Airway modules INTRODUCTION This section provides information for maintenance and service of the S/5 Compact Airway modules. The Compact Airway modules are double width plug-in modules. M-C, M-CO, M-COV, M- COVX, M-CAiO, M-CAiOV, M-CAiOVX and M-CAiOVX/SERVICE are designed for use with the S/5 monitors. -
Page 8: Specifications
Datex-Ohmeda S/5 monitors SPECIFICATIONS 1.1 General specifications Module size, W × D × H 75 × 228 × 112 mm, 2.9 × 9.0 × 4.4 in Module weight 1.6 kg/3.7 lbs Operating temperature +10...+40 °C Storage temperature -25...+70 °C Atmospheric pressure 666...1060 hPa /... -
Page 9: Respiration Rate (Rr)
Compact Airway modules 1.2.4 Respiration Rate (RR) Measurement range 4...60 breaths/min Detection criteria 1 % variation in CO 1.2.5 Anesthetic Agents (AA) Measuring range Hal, Enf, Iso 0 to 6 vol% 0 to 8 vol% 0 to 20 vol% Measurement rise time <... -
Page 10: Normal Conditions
Datex-Ohmeda S/5 monitors 1.3.1 Normal conditions Accuracy specifications apply in normal conditions (after 30 minutes warm-up period): Ambient temperature 18...28 °C, within ±5 °C of calibration Ambient pressure 500...800 mmHg, ±50 mmHg of cal. Ambient humidity 20...80 % RH, ±20 % RH of cal. -
Page 11: Patient Spirometry Specifications
Compact Airway modules 1.4 Patient spirometry specifications 1.4.1 Normal conditions Accuracy specifications apply in normal conditions (after 10 minutes 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 (adults) 4...50 breaths/min (pediatric) I:E ratio 1:4.5...2:1... -
Page 12: Conditions Exceeding Normal
Datex-Ohmeda S/5 monitors Other parameters Specifications apply in conditions listed in patient spirometry specifications. Dead space of the sensor 9.5 ml (adult), 2.5 ml (pediatric) Resistance of the sensor 0.5 cmH O @ 30 l/min (adult), 1.0 cmH O @ 10 l/min (pediatric) 1.4.2 Conditions exceeding normal... -
Page 13: Gas Exchange Specifications
Compact Airway modules 1.5 Gas exchange specifications Mathemathical integration of airway flow and gas concentration for intubated, mechanically ventilated and/or partly spontaneously breathing patients. NOTE: These specifications apply only when a 2 meter gas sampling line is used, and a Y-piece with a physical dead space less than 8 ml. -
Page 14: Functional Description
Datex-Ohmeda S/5 monitors FUNCTIONAL DESCRIPTION 2.1 Measurement principle 2.1.1 CO O, and agent measurement TPX is a side stream gas analyzer, measuring real time concentrations of CO O and anesthetic agents (Halothane, Enflurane, Isoflurane, Desflurane, and Sevoflurane). Temp sensor Sample... -
Page 15: Figure 2 Absorbance Of N
Compact Airway modules Figure 2 Absorbance of N O and CO Identification of anesthetic agents and calculation of their concentrations is performed by measuring absorptions at five wavelengths in the 8-9 µm band and solving the concentrations from a set of five equations. Figure 3 Infrared absorbance of AAs The measuring accuracy is achieved utilizing numerous software compensations. -
Page 16: Measurement
Datex-Ohmeda S/5 monitors 2.1.2 O measurement The differential oxygen measuring unit uses the paramagnetic principle in a pneumatic bridge configuration. The signal picked up with a differential pressure transducer is generated in a measuring cell with a strong magnetic field that is switched on and off at a frequency of 165 Hz. - Page 17 Compact Airway modules Static Plateau pressure (Static Pplat); available only in S/5 Critical Care and Compact − Critical Care monitors Static Compliance (Static Compl); available only in S/5 Critical Care and Compact Critical − Care monitors PEEP, P , and P are measured by pressure transducer on the PVX board.
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Page 18: Gas Exchange Measurement
Datex-Ohmeda S/5 monitors D-lite Patient Spirometry uses a specific sensor called D-lite flow sensor. Different types of the D-lite sensors are available: adult sensor for measuring adults and pediatric sensor for children. Both are available as reusable versions and D-lite sensor also for single use. -
Page 19: Main Components
Compact Airway modules fi - [ml/min] Formula 8 × × To obtain results which are less sensitive to errors in volume measurements, so-called Haldane transformation is used. This means taking advantage of the fact that the patient is not consuming nor producing nitrogen: the amount of nitrogen inhaled is equal to the amount exhaled fi ×... -
Page 20: Figure 5 Absorber
Datex-Ohmeda S/5 monitors D-fend The sample is drawn through a sampling 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. -
Page 21: Figure 6 Gas Sampling System Layout, M-C
Compact Airway modules Pneumatic unit The pneumatic unit contains zeroing valve, occlusion valve and tubing connections. There is a series of restrictors and chambers forming a pneumatic filter to prevent pressure oscillations from the pump to reach the measuring units. The occlusion valve connection to room air includes a dust filter and the zero valve connection to room air includes an absorber. -
Page 22: Figure 7 Gas Sampling System Layout, M-Caiov, M-Caiovx, M-Caio, M-Covx, M-Cov, M-Co
Datex-Ohmeda S/5 monitors CO2 absorber Nafion tube Pneumatic unit D-fend OM unit Water trap Nafion tube Pressure transducers Connection block TPX unit Damping champer Sampling pump Figure 7 Gas sampling system layout, M-CAiOV, M-CAiOVX, M-CAiO, M-COVX, M-COV, M-CO Room air... -
Page 23: Tpx Measuring Unit
Compact Airway modules 2.2.2 TPX measuring unit The TPX unit 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 4 W filament, surrounded by thermal isolation. -
Page 24: Pvx Measuring Unit
Datex-Ohmeda S/5 monitors Figure 10 OM measuring unit 2.2.4 PVX measuring unit NOTE: Never apply overpressure or negative pressure of more than 300 cmH O to the flow and volume tubing. Differential pressure max 25 cmH2O on one port at a time e.g. when connecting tubes. -
Page 25: Gas Exchange
Compact Airway modules 2.2.5 Gas exchange The gas exchange measurement uses the concentrations measured by the TPX measurement unit and the O measurement unit, in combination with the flow from the PVX measurement unit. The gas exchange calculation is done by software. CAUTION The gas exchange measurement in the M-CAiOVX and M-COVX modules works accurately only with 2 meter gas sampling lines. -
Page 26: Om Board
Datex-Ohmeda S/5 monitors CPU Board Lamp Unit Valves pneumatics Lamp Lamp unit Valves Current Sensing MUX & A / D buffer Gas press A / D Diff press reset OM Board 80C196NT data Temp sensor valves Figure 13 Control logic... -
Page 27: Connectors And Signals
Compact Airway modules 2.3 Connectors and signals Figure 15 Module bus connector pin layout Table 2 Module bus connector pin description Pin No I/O Signal RESET RS485 -15 VDC +15 VDIRTY +15VDC -DATA RS485 DATA RS485 Ground and Shield -RESET RS485 Ground and Shield +24/+32 VDIRTY depends on power supply (not used) Ground DIRTY... -
Page 28: Service Procedures
Field service of the compact airway modules is limited to replacing faulty circuit boards or mechanical parts. The circuit boards should be returned to Datex-Ohmeda for repair. Datex-Ohmeda is always available for service advice. Please provide the unit serial number, full type designation and a detailed fault description. -
Page 29: Service Check
Compact Airway modules 3.2 Service check These instructions include complete procedures for a service check. The service check is recommended to be performed after any service repair. However, the service check procedures can also be used for determining possible failures. The procedures should be performed in ascending order. - Page 30 Datex-Ohmeda S/5 monitors Part Order No. Notes Spirometry tube 2 m 890031 Spirometry tube 3 m 884101 D-fend O-ring (2 pcs) 65312 Filter (3 pcs) 886136 1 pcs @ latest revisions Filter assembly 896025 @ latest revisions Nafion tubes (2 pcs)
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Page 31: Figure 16 Pneumatic Unit And Reference Gas Connection Block
Replace the D-fend and sampling line by new. • NOTE: Use only Datex-Ohmeda sampling lines in order to ensure proper functioning. 2 m/7 ft sampling line should be used with M-COVX and M-CAiOVX. Connect the Compact Airway Module to the Central Unit’s Module motherboard •... - Page 32 Datex-Ohmeda S/5 monitors Wait until the message ‘Calibrating gas sensor’ disappears from the screen, then enter the Service menu. Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8) Take down the information regarding Compact Airway Module software. Enter the Compact Airway Module service menu.
- Page 33 Compact Airway modules Perform sampling system leak test. Prevent the module from performing the normal occlusion functions, i.e. controlling the valves, by turning the pump first off, then on again from the menu. Block the reference gas connector at the front panel. Connect a flow cassette with high flow resistance value (50/1.1) to the end of the sampling line and start following the ‘Amb-Work’...
- Page 34 Datex-Ohmeda S/5 monitors 16. Check that the ‘Amb-Work’ -value in the service menu is within the following range: Amb-Work (mmHg) M-CAiOVX/M-COVX Others 70...115 40...75 17. Perform the gas calibration. Airway Gas - Gas Calibration NOTE: The calibration is not recommended to be performed before 30 minutes warm-up time.
- Page 35 Compact Airway modules Anesthesia Agent measurement 19. Agent ID reliability. Feed calibration gas (order code 755583) continuously at least for 30 seconds and check that the ‘ID’ in the service menu shows ‘DES’ and that the value for ‘ID unrel.’ is lower than 50. If the value is higher, repeat the gas calibration and check the value again.
- Page 36 Datex-Ohmeda S/5 monitors All modules Turn the monitor off, disconnect the Gas interface cable and reassemble the module. Remember to attach the plastic cover against the CPU board before installing the module box. NOTE: When reassembling the module make sure that the tubes are not pinched between the module box and internal parts.
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Page 37: Disassembly And Reassembly
Compact Airway modules 3.3 Disassembly and reassembly Disassemble the compact airway module in the following way. See also the exploded view of the module. Remove two screws from the back of the module. Pull the module box slowly backwards and detach it from the main body. Reassembling is essentially reversing what was described above. -
Page 38: Software Of Cpu Board
Datex-Ohmeda S/5 monitors 3.3.4 Software of CPU board Remove the module box. Detach the CPU board and OM board from the module chassis (4 screws). Disconnect the pump cable, pneumatics unit cable, fan cable, and the other cable of the TPX unit from CPU board. -
Page 39: Flow Rate Adjustment
Compact Airway modules 3.4.3 Flow rate adjustment NOTE: Before adjusting the sampling flow make sure there is no leakage in the sampling system. Refer to chapter 3.2 Service check, step 15; Check the flow rates. Wait until the ‘Sample Flow’ -value is back near 200 ml /min. Connect a flowmeter to the 3 meter sampling line (use a 2 meter sampling line for M-CAiOVX and M-COVX) and check that the flow (the flowmeter reading) is within the following range: 3.4.4 Gas calibration... -
Page 40: Troubleshooting
Datex-Ohmeda S/5 monitors TROUBLESHOOTING 4.1 Troubleshooting charts Trouble Possible cause/treatment No response to breathing Sampling line or water trap blocked or loose, or improperly attached. Water trap container full. See the gas sampling system troubleshooting. SENSOR INOP. -message The temperature is too high, check fan and filter at the front panel... -
Page 41: Measurement
Compact Airway modules Trouble Possible cause/treatment Strong drift in all gases Leak in sampling line or internal tubing (especially in conjunction with too low readings). MVexp << MVinsp message Leak in patient circuit between patient and D-lite, or in the patient lungs, or leak in tubes from D-lite to module. -
Page 42: Patient Spirometry
Datex-Ohmeda S/5 monitors 4.1.2 Patient spirometry Problem Possible clinical cause Possible technical cause Action insp TV>exp TV • leak in lungs • spirometry tube leak • check leakages -- perform leak test • ET tube cuff leak • water inside D-lite or tubings •... - Page 43 Compact Airway modules Problem Possible clinical cause Possible technical cause Action fluctuating Raw • mucus in airways or tubings • ventilator exp. valve causes fluctuations during exp. • breathing effort against the flow ventilator • patient triggered breaths too high Raw •...
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Page 44: Gas Exchange
Datex-Ohmeda S/5 monitors 4.1.3 Gas exchange Problem Possible clinical cause Possible technical cause Action “Strange” values • ventilation mode: • gas exchange not BiPaP, CPAP with high measurable continuous by-pass flow • presence of N O or • do not use N... -
Page 45: Gas Sampling System Troubleshooting
NOTE: If any liquid has entered the TPX measuring unit due to water trap filter failure, contact Datex-Ohmeda Technical Services. 4.2.1 Sampling system leak test Prevent the module from performing the normal occlusion functions, i.e. controlling the valves, by turning the pump first off, then on again from the menu. -
Page 46: Om Measuring Unit Troubleshooting
Instead, if the fault has been found in the measuring unit itself, the whole module should be replaced and the faulty module be sent to Datex-Ohmeda for repair. In cases of no response to O or strong drift, check the tubing for loose connections, blockages and leaks. -
Page 47: Error Messages
Compact Airway modules 4.7 Error messages Message Explanation Occlusion or Sample Line Blocked The sample tube inside or outside the monitor is blocked or water trap is occluded. If occlusion persists, measured gas values disappear. Continuous occlusion. Check sampling line and Occlusion over 40 seconds. -
Page 48: Service Menu
Datex-Ohmeda S/5 monitors SERVICE MENU Monitor Setup Press the key - select Install/Service (password: 16-4-34) - select Service (password: 26-23-8) - select Parameters - select Gas Unit. Document No. 800 1009-1... -
Page 49: General Menu
Compact Airway modules 5.1 General menu Service Data field Module configuration shows which measurement options are available, i.e. are detected by the module. Timeouts is a cumulative number that indicates how many times the module has not responded to the monitor's inquiry. Bad checksums is a cumulative number that indicates how many times communication from the module to monitor broke down. -
Page 50: Gases Service Menu
Datex-Ohmeda S/5 monitors 5.2 Gases service menu Noise Meas A selection for activating the noise measurement. Sample gain adj A selection for adjusting the sampling pump gain, i.e. for for adjusting the sample flow measurement. Fall time Meas A selection for activating the fall time measurement. - Page 51 Compact Airway modules Delay In ms. No delay between CO O, and agents. Pump Can be toggled ON/OFF. PWM output 0-100% is shown. Pump voltage is also shown. Lamp The state, PWM control, and current of the lamp are shown. The state of the fan is shown.
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Page 52: Spirometry Service Menu
Datex-Ohmeda S/5 monitors 5.3 Spirometry service menu Insp and exp flow gains can be adjusted if calibration is needed. Calibration pump or spirometry tester is used and readings are observed from display. If a deviation exists, gains are adjusted accordingly. Gain scaling is 1.000 when factory settings are in effect. - Page 53 Compact Airway modules Common Offset is the compensation factor for pressure difference reading of the difference • sensor when applying a equal pressure on both sides of the sensor. Valves can be changed between MEASUREMENT and ZEROING. • Zeroing automatic zeroing either ENABLED or DISABLED (only factory service menu). •...
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Page 54: Spare Parts
Datex-Ohmeda S/5 monitors SPARE PARTS 6.1 Spare parts list NOTE: Only changed part numbers are listed under later revisions. To find the desired part: check first the list of the revision that corresponds your device. If the part is not listed there, check the previous revision, etc. -
Page 55: M-Caiovx Rev. 00, M-Caiov Rev. 02, M-Caio Rev. 01, M-Covx Rev. 01, M-Cov Rev. 02, M-Co Rev. 01, M- C Rev. 01
Cable tie 640013 6.1.3 S/5 M-CAiOVX rev. 01, S/5 M-CAiOV rev. 03, S/5 M-CAiO rev. 02, S/5 M-COVX rev. 02, S/5 M-COV rev. 03, S/5 M-CO rev. 02, S/5 M-C rev. 02 No new spare parts. See S/5 stickers below. -
Page 56: S/5 Stickers
Datex-Ohmeda S/5 monitors Adaptation M-CO M-CAiO +plain sticker for all (rev. 00-01) (rev. 00-01) (rev. 00-01) Item 20/21 894986 894987 894991 880471 892228 892229 892232 880471 893544 893547 893543 880471 895245 895246 895244 880471 891101 891104 891100 880471 Adaptation M-COV... -
Page 57: Planned Maintenance (Pm) Kits
Compact Airway modules Adaptation S/5 M-COV S/5 M-COVX S/5 M-CAiOV S/5 M-CAiOVX +spirometry (rev. 03) (rev. 02) (rev. 03) (rev. 01) sticker for all item 20 898659 898671 898540 898552 898637 898650 898662 898531 898543 898628 898649 898661 898530 898542... -
Page 58: Earlier Revisions
Datex-Ohmeda S/5 monitors EARLIER REVISIONS Revision Manual slot/main manual Note Compact Airway Module, M-CAiOVX (rev. 00) 896 619/896 624 Compact Airway Module, M-CAiOV (rev. 02) Compact Airway Module, M-CAiO (rev. 01) Compact Airway Module, M-COVX (rev. 01) Compact Airway Module, M-COV (rev. 02) Compact Airway Module, M-CO (rev. - Page 59 APPENDIX A, Service check form, S/5 Compact Airway modules APPENDIX A Document No. 800 1009-1...
- Page 60 Datex-Ohmeda S/5 monitors Document No. 800 1009-1...
- Page 61 APPENDIX A, Service check form, S/5 Compact Airway modules SERVICE CHECK FORM Compact Airway modules Customer Service Module type Service engineer Date OK = Test OK N.A. = Test not applicable Fail = Test Failed All modules N.A. Fail N.A. Fail 1.
- Page 62 Datex-Ohmeda S/5 monitors Reference flow (others) 31…45 ml/min Zeroing flow ±20 ml/min 16. Working pressure Amb-Work 40...75 mmHg Amb-Work (M-CAiOVX/M-COVX) 70...115 mmHg N.A. Fail 17. Gas calibration 18. Fall time measurement fall time < 400 ms fall timeb < 400 ms O delay <...
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