Datascope

Datascope Patient Monitoring Systems

MULTINEX Gas Module Operating Instructions Rev A May 1997

Operating Instructions

98 Pages

&/2%7/2$ 3!&%49 #/.3)$%2!4)/.3 5.0!#+).' 3%26)#).' ).&/2-!4)/. 4ABLE OF #ONTENTS IV IV V VI '%.%2!, $%3#2)04)/. 1.1 General Description ... 1-1 #/.42/,3 !.$ ).$)#!4/23 2.1 Front Panel... 2.2 Rear Panel... 2-2 2-10 /0%2!4)/. 3.1 General Guidelines... 3.2 Initial Set Up... 3.3 Turning Power On... 3.4 Typical Operation... 3.5 Waveform Selection and Size... 3.5.1 Selection... 3.5.2 Size... 3.6 Gas-Trace Speed... 3.7 Split Screen... 3.8 Trend Time... 3.9 Record... 3.10 Cal... 3.11 Alarms... 3.12 Alarm Keys - Setting Alarms... 3.12.1 Select, HI, and LO... 3.12.2 Auto Set - Automatic Setting of Alarms . 3.12.3 Audio - Mute... 3.12.4 Audio - Volume... 3.13 Digital Displays... 3.14 Trend Displays... 3.15 Sampling Flow Rate/O2 Cal Adjust Sequence . 3.16 O2 Cell... 3.17 Sump... 3.18 Scrubber Cartridge... MULTINEX / Gas Module Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 3-3 3-4 3-9 3-9 3-9 3-10 3-10 3-11 3-11 3-12 3-12 3-14 3-15 3-15 3-16 3-16 3-17 3-18 3-18 3-20 3-20 3-20 i

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&/2%7/2$ 3!&%49 #/.3)$%2!4)/.3 5.0!#+).' 3%26)#).' ).&/2-!4)/.

4ABLE OF #ONTENTS

IV IV V VI

'%.%2!, $%3#2)04)/.

1.1 General Description

...

1-1

#/.42/,3 !.$ ).$)#!4/23

2.1 Front Panel... 2.2 Rear Panel...

2-2 2-10

/0%2!4)/.

3.1 General Guidelines... 3.2 Initial Set Up... 3.3 Turning Power On... 3.4 Typical Operation... 3.5 Waveform Selection and Size... 3.5.1 Selection... 3.5.2 Size... 3.6 Gas-Trace Speed... 3.7 Split Screen... 3.8 Trend Time... 3.9 Record... 3.10 Cal... 3.11 Alarms... 3.12 Alarm Keys - Setting Alarms... 3.12.1 Select, HI, and LO... 3.12.2 Auto Set - Automatic Setting of Alarms . 3.12.3 Audio - Mute... 3.12.4 Audio - Volume... 3.13 Digital Displays... 3.14 Trend Displays... 3.15 Sampling Flow Rate/O2 Cal Adjust Sequence . 3.16 O2 Cell... 3.17 Sump... 3.18 Scrubber Cartridge... MULTINEX / Gas Module Operating Instructions

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3-1 3-2 3-3 3-4 3-9 3-9 3-9 3-10 3-10 3-11 3-11 3-12 3-12 3-14 3-15 3-15 3-16 3-16 3-17 3-18 3-18 3-20 3-20 3-20 i

4ABLE OF #ONTENTS

3.19 Software Cartridge... 3.20 Intake and Exhaust Luers... 3.21 User Configuration... 3.21.1 User Configuration Mode... 3.21.2 Typical Configuration Menu Sequence... 3.21.3 CO2/SaO2 Output Configuration... 3.22 Interfacing... 3.22.1 With Datascope ACCUSAT... 3.22.2 Interfacing with the 3000 or 3000A Monitor... 3.22.2.1 Software Compatibility : Multinex Plus / 3000 / 3000A . 3.22.3 Connectors... 3.22.4 Interfacing to Personal Computers... 3.23 Optional Unit Configurations... 3.23.1 Units equipped with SaO2 (Model 4200)... 3.23.2 Units Equipped with Anesthetic Agent (Model 4100ID) . 3.24 SaO2 Sensor Selection... 3.25 Performance Verification...

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. 3-20 . 3-20 . 3-21 . 3-21 . 3-24 . 3-25 . 3-25 . 3-25 . 3-26 . 3-26 . 3-27 . 3-29 . 3-29 . 3-29 . 3-30 . 3-31 . 3-36

53%2 -!).4%.!.#% 4.1 Care and Cleaning of Monitor... 4.2 Replaceable Items... 4.2.1 Catheters and Breathing Tube Adaptors... 4.2.2 O2 Cell... 4.2.3 Sump... 4.2.4 Scrubber Cartridge... 4.2.5 Software Cartridge... 4.2.6 Fuses... 4.3 Troubleshooting Guidelines... 4.4 Frequent "PURGING" Events due to Moisture in the Breathing Circuit and/or Improperly Sized Accessories...

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. 4-1 . 4-1 . 4-2 . 4-2 . 4-3 . 4-3 . 4-4 . 4-4 . 4-5

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!##%33/2)%3 5.1 Standard Accessories... 5.2 Optional Accessories... 5.3 Mounting Instructions... 5.3.1 Multinex to the 3000A Monitor . 5.3.2 Multinex to Other Units... 5.3.3 Drawer Box Assembly...

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. 5-1 . 5-1 . 5-4 . 5-4 . 5-5 . 5-6

MULTINEX / Gas Module Operating Instructions

4ABLE OF #ONTENTS !00%.$)8

6.1 Warranty... 6.2 Extended Warranty... 6.3 Material Safety Data Sheets for Material used in the Scrubber Cartridge 6.4 Specifications... 6.5 Environmental Characteristics... 6.6 Performance Specifications... 6.7 Safety Characteristics... 6.8 System Compatibility... 6.9 Configurations... 6.10 Agency Compliances... 6.11 CO2 Displays... 6.12 Anesthetic Agent Identification...

MULTINEX / Gas Module Operating Instructions

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&/2%7/2$ This manual is intended to provide the information needed for proper operation of the Datascope MULTINEX and GAS MODULE. General knowledge of monitoring and an understanding of the features and functions of the Datascope MULTINEX / GAS MODULE are prerequisites for its proper use. DO NOT OPERATE THIS MONITOR BEFORE READING THESE INSTRUCTIONS. Information for servicing this instrument is contained in the Datascope MULTINEX / Gas Module Service Manual, Part No. 0070-00-0369. For additional information or assistance, please contact an authorized Datascope representative in your area. Federal Law restricts this device to sale by or on the order of a physician or other practitioner licensed by state law to use or order the use of this device. For external communication protocol see Service Manual Supplement: P/N 0070-00-0305, MULTINEX Communication Protocol. NOTE: In order to ensure the proper performance of your monitoring equipment and to prevent the voiding of the warranty, it is recommended that only parts and accessories provided by Datascope be used with your monitor.

3!&%49 #/.3)$%2!4)/.3 Please read and adhere to the following safety considerations regarding the use of this instrument. 7!2.).'3 Possible Explosion Hazard - This instrument is not explosion proof and should not be used in the presence of flammable anesthetics. Internal Electrical Shock Hazard - This unit does not contain any user-serviceable parts. Do not remove instrument covers. Refer servicing to qualified personnel. Trace Gas Hazard - A health hazard may exist 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 MULTINEX / Gas Module exhaust output should be connected to a medical gas-scavenging system. Do not operate this monitor if: some or all of the displays fail to function properly, or the CRT message "FAN FAILURE" occurs. Insure that the total combined leakage currents do not exceed safe limits. DO NOT change the voltage selector. Use only MULTINEX / Gas Module software cartridges in this unit.

MULTINEX / Gas Module Operating Instructions

#!54)/.3 NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. Never place fluids on top of the monitor. Always place the monitor on a flat, rigid surface. Observe all CAUTION and WARNING labels. Replace the fuses with specified type and rating. Grounding reliability can only be achieved when the monitor is connected to an equivalant receptacle marked "Hospital Grade". RS232 DISCLAIMER - Connection of non-isolated devices to the RS232 Connector on this unit may cause chassis leakage to exceed the specification standards. EXTERNAL OXIMETER DISCLAIMER - Connection of non-isolated devices to the external oximeter connector on this unit may cause chassis leakage to exceed the specificaiton standards.

5.0!#+).' Remove the instrument from the shipping carton and examine it for signs of shipping damage. Save all packing materials, invoice, and bill of lading. These may be required to process a claim with the carrier. Check all materials against the packing list. Contact the Datascope Service Department (800) 288-2121 for prompt assistance in resolving shipping problems.

MULTINEX / Gas Module Operating Instructions

3%26)#).' ).&/2-!4)/. Datascope maintains a network of service representatives and factory-trained distributors. Prior to requesting service, perform a complete operational check of the instrument to verify proper control settings. If operational problems continue to exist, contact the Datascope Service Department (800) 288-2121 for assistance in determining the nearest field service location. Please include the instrument model number, the serial number, and a description of the problem with all requests for service. Any questions regarding the warranty should be directed to:

$OMESTIC /FFICE Service Manager Datascope Corp. 580 Winters Ave. Paramus, NJ 07652 (800) 288-2121

)NTERNATIONAL /FFICES Service Manager Datascope B.V. Dr. W van Royenstraat 8 P.O. Box 26 3870 CA Hoevelaken Holland Phone: 31(3325)44911 Fax: 31(3325)72974

Service Manager Datascope GmbH Zeppelinstraße 2-4 D-64625 Bensheim Germany Phone: 49(6251)1705-0 Fax: 49(6251)67877

Service Manager Datascope Medical Co., Ltd. Lakeview Court Spitfire Close Ermine Business Park Huntingdon, England Cambs PE186XR Phone: 44 1 (480)433477 Fax: 44 1 (480)434051

Service Manager Datascope S.A.R.L. Immeuble Rond Point 93 65 Avenue DU General Gallieni 93100 Montreuil-sous-Bois France Phone: 33(1)45139150 Fax: 33(1)45139151

MULTINEX / Gas Module Operating Instructions

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/0%2!4)/. This section of the Operating Instructions provides general guidelines and step-by-step instructions for the proper use of the MULTINEX / Gas Module. Perform all instructions in the order given. Do not omit any instructions. Numbers in parenthesis identify the controls and indicators previously described in Chapter 2, Controls and Indicators.

'ENERAL 'UIDELINES The MULTINEX / Gas Module calculates and displays Inspired O2, End-Tidal CO2, Inspired CO2, Inspired and Expired N2O, and Respiration Rate. Inspired and Expired Anesthetic Agent data is only available on units with Agent capability. NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. SaO2 and Pulse Rate data is only available on the 4000 Plus, 4000ID Plus and 4200 models. Operation of the MULTINEX / Gas Module is based on breath-by-breath measurements via a catheter and a breathing-tube adaptor. The 7-inch raster type CRT displays a maximum of three trace waveforms, trended data, alarm limits, and user-messages. Trace 1 always displays the CO2 waveform. Trace 2 and Trace 3 are used to display the other available waveforms, i.e., N2O, Pleth, and Cascaded CO2 (CO2DY). Trace 2 is always the Agent waveform on units with Agent capability. Each trace area is outlined and scaled with it’s appropriate units.

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)NITIAL 3ET 5P 1. Set the front panel AC POWER ON/OFF switch (6) OFF. 2. Check the serial number label and confirm proper voltage configuration. If the instrument voltage selection is not for your particular application, contact a Datascope Service Representative or qualified hospital personnel. 3. If interfacing with other equipment, attach the appropriate interface cable(s) between the MULTINEX / Gas Module rear panel INTERFACE connector and the corresponding INTERFACE connector(s) on the peripheral instrument(s). 4. Attach the line cord to the ac power connector (42) on the MULTINEX and to a properly grounded 3-wire ac receptacle. DO NOT use any adaptors to defeat the U-ground of the cord set. WARNING: Insure that the total combined leakage currents do not exceed safe limits. 5. Interface the supplied catheter with the breathing-tube adaptor. Follow the instructions included in each package. 6. Attach the supplied catheter (with the breathing tube adaptor) to the sample connector located on the front panel (18). Follow the instructions included in the catheter package. 7. Check for a clean sump. The sump is a disposable item that can be replaced if contaminated. See Section 4.2.3, Sump. 8. Check the sump and O2 cell for tightness to avoid system leaks.

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4URNING 0OWER /. 1. Attach the catheter to the MULTINEX / Gas Module before turning the unit ON. 2. Turn the front panel ON/OFF switch (6) ON. Observe the illumination of the CRT and digital displays and two audible beeps. The system performs a self-test before proceeding with monitoring. If a problem exists a message will appear identifying it. In some cases a prompt will ask the operator if they wish to continue monitoring (of SaO2 only). See Section 4.3 for messages and responses. O2 cell calibration is the next step in this process and takes two minutes to complete. During O2 cell calibration, two or three flat traces appear on the screen with the message "O2CAL: XXX", where XXX denotes the time remaining in seconds until the completion of the O2 Cal. After the O2 Cal is complete, the unit calibrates the gas channels and operation begins. The agent channel is not operational for the first five minutes. The unit is fully operational (reaches full specification) (including agent) after a 5-minute warm-up period. Additional calibrations are recommended at 30 minutes and any time the operator feels the need to re-calibrate (see drift specification). WARNING: When using the MULTINEX / Gas Module prior to a warm-up period of 5 minutes, its accuracy may not meet specification. WARNING: Evaporated alcohol or organic vapor will affect the reading of the Halothane, Enflurane or Isoflurane display. Alcohol in the patient’s breath cannot be distinguished from an anesthetic agent. A reading of the patient’s expired breath on the MULTINEX / Gas Module display should be taken before the administration of an anesthetic agent to establish the presence of alcohol or organic agents.

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4YPICAL /PERATION NOTE: The following sequence is presented only to describe to the operator a simple, straightforward method for using the multinex and does not take the place of other instructions described in this manual. 1. Set Up Connect an ac power cord to the AC Power Connector (42) and into an ac receptacle. 2. Catheter Connection Attach the catheter to the Sample Connector (18). Attach an appropriate breathing tube adaptor to the catheter. 3. Sensor Connection (Models with SaO2 option only) Plug the appropriate Datascope SaO2 sensor into the Patient Connector (17). 4. Main Power Switch Press the POWER ON/OFF switch (6) to the ON position. The unit begins a "self-check" and a two minute calibration for the O2 cell, followed by a calibration of the CO2, N2O and Agent channels. Auto-calibration occurs during the first 5 minutes. 5. Agent Analysis a. Agent ID Versions (Models 4000ID Plus, 4100ID Plus) Select the mode of agent identification desired, AUTO, VERIFY or ID DISABLED, using AGENT ID MODE (7). If VERIFY or ID DISABLED is selected, use AGENT SELECT (19) to indicate the agent being delivered. NOTE: When using Sevoflurane or Suprane, the ID DISABLED mode must be used. The MULTINEX will not AUTO ID or VERIFY Sevoflurane or Suprane. NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. b. Agent Versions (Models 4000 Plus, 4100 Plus & Gas Module) Use AGENT SELECT (19) to indicate the agent being delivered.

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6. Operation The unit contains pre-programmed selections for trace size, speed, selection, trend display, and alarms. The unit is ready to operate immediately after calibration. To change any of these functions, press the appropriate key (see Sections 3.5, 3.6, 3.7, and 3.8 for more details). a. Trace - Select: • Press the appropriate key (Select - Trace 2 (3) or Select - Trace 3 (5)) to select the desired trace. • Trace 2 (3) - Displays cascaded CO2*, N2O, or PLETH (SaO2 versions only) waveform. • Trace 3 (5) - Displays a CO2, N2O, or PLETH (SaO2 versions only) waveform. NOTE: Trace 1 always displays a CO2 trace. Trace 2 always displays AGENT on units that measure anesthetic agents. b. Trace - Size: • Press the appropriate key (Size - Trace 1 (1), Size - Trace 2 (2), or Size - Trace 3 (4)) to select the size of the trace.

c. Gas Trace Speed (8): • Press to change the speed of all the displayed gases. d. Split Screen (9): • Press to change a portion of the waveform display to a trend presentation. Depressing the key varies the proportion of the displayed waveform and trend.

e. Trend Time (10): • Selects a time period for the display of trended data. Hold for 3 seconds to clear.

*Cascaded CO2 allows the CO2 waveform on trace 1 to be moved to Trace 2 or 3 as Trace 1 is being updated.

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7. Alarms a. Select (33): • Press to display the alarm parameters on the screen. • Change the alarm settings by pressing the HI (32) or LO (31) keys. • Press SELECT (33) to index through the alarm selections. The alarms are set as indicated on the display. The displayed limits disappear after 15 seconds. • Upon violation or depression of the SELECT key (33), the limits are recalled on the display.

b. Audio Mute (16): • Press once to silence the audio tone of a violated alarm for two minutes. • Depress twice within three seconds to cancel all audio alarms for two minutes.

c. Audio Volume (15): • Controls the sound level of the tone. d. Auto Set (30): • Press to automatically set the alarms (CO2, Pulse Rate, and Inspired Agent only) based on the last five minutes of patient data. Hold for 3 seconds to reset alarms to default settings.

e. Cal (13): • This button can be used to manually calibrate the CO2, N2O and Agent channels whenever needed (see drift specification). It is recommended that the unit be calibrated once at 30 minutes and periodically after that. Note that the corresponding data and displays do not update during a calibration. • It is normal for the MULTINEX / Gas Module to automatically recalibrate on a periodic basis, if the measurement bench starts to drift.

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MULTINEX / Gas Module Operating Instructions Chapter 3

8. Agent (units with Agent capability only) a. Agent ID Mode (7) • Selects the mode of agent identification (4000ID Plus & 4100ID Plus). • If the AUTO mode is selected and no agent is present, the word "READY" displays on the CRT above the agent trace area. Nothing is illuminated in the agent display window (21). When an Agent is detected, the unit will replace the "READY" message with the name of the Agent identified. NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. • If the VERIFY mode is chosen, the agent selected with the AGENT SELECT key (19) is displayed on the CRT above the agent trace area. When the Agent identified is the same as that selected for verification, a beep tone will be sounded and the agent name listed on the CRT. Otherwise, the message "WRONG AGENT" will appear. NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. • The DISABLE mode is used to disable the ID section and allows the Sevoflurane or Suprane to be selected. These agents must be selected manually and cannot be automatically identified. b. Agent Select (19) (active in VERIFY and ID DISABLED Mode only): • Indicates the selected anesthetic agent. Press AGENT SELECT (19) until the selected agent is displayed on the CRT above Trace 2. NOTE: N2O is selected for CRT display via user-configuration. See Section 3.19. NOTE: When monitoring one agent and then changing to another, the agent trend display will update for the new agent with a bar between the agent. NOTE: Prior to applying des. or sev., select agent id disabled mode, then select agent. Failure to do so will cause erroneous CO2, N2O and agent readings. c. % End Tidal (22) • Indicates end tidal concentrations of the selected agent (0-8%). Data updates at the completion of each breath. If new breath data is the same as old breath data the display flickers. Flickering indicates a new reading.

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d. % Inspired (20): • Indicates inspired concentrations of the selected agent (0-8%). Data updates at the completion of each breath. If new breath data is the same as old breath data the display flickers. Flickering indicates a new reading. 9. SaO2 a. SaO2 (28) • Indicates SaO2 concentrations in units of percent (0-99%). Data updates every two seconds. b. Pulse Rate (28): • Indicates the SaO2 pulse rate in beats per minute (30-250). Data updates every two seconds. c. Beep Volume (14): • Adjusts pulse volume level. Press to sound the beep at the present volume. Press twice within three seconds to change the selected beep volume.

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7AVEFORM 3ELECTION AND 3IZE There are five front panel keys (1,2,3,4,5) that control the selection and sizes of the displayed waveforms. If a selected waveform is not valid for a particular monitor or if that selection already is displayed on another trace, that selection is skipped and the next waveform in the sequence is displayed.

3ELECTION Trace 1 always displays the CO2 waveform. Trace 2 indexes through the following choices (on non-agent units only): N2O, Pleth, CO2 Delay (Cascaded CO2), and Off. Agent units use Trace 2 to display Agent only. Trace 3 indexes through Pleth, N2O, and Agent.

3IZE The following is a list of the available size selections for the various traces. CO2: TORR: %: KPA: N2O: % Agent: Trends**: SaO2(%): Pulse**: Pleth:

Scale Range 0 - 80*, 0 - 10*, 0 - 10*, 0 - 40*, 0 - 20*,

0 - 40, 0 - 5, 0 - 5, 0 - 100, 0 - 8,

0 - 100 0 - 12 0 - 12 0 - 60 0-3

0 - 100 0 - 250* 1, 2, 4*, 8

* default values ** Trend SaO2 and Pulse are available on all models but the 4100 Plus, 4300 and the Gas Module require external oximeters approved to work with MULTINEX. Trend only appears when selected.

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'AS 4RACE 3PEED 1. Press Gas-Trace (8) to change the speed of the erase bar devoted to any gas measurements (CO2, N2O, or Agent). The setting changes the gas trace speed for all displayed gases, (individual settings for different waveforms can not be made.) The speed of the erase bar can be set to 1, 5, 10, 12.5*, or 25 mm/s. The plethysmograph trace speed is fixed at 25 mm/s, regardless of the Gas Trace Speed setting.

3PLIT 3CREEN 1. Press Split Screen (9) to change the proportion of the display dedicated to waveform data and trended data. Split Screen combinations are as follows: Waveform/Trend (%) 100/0 (all waveform, no trend) 75/25* 50/50 25/75 0/100 (no waveform, all trend) The selected split screen setting affects all displayed waveforms.

* default values

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MULTINEX / Gas Module Operating Instructions Chapter 3

4REND 4IME 1. Press Trend Time (10) to change the time scales for trend presentations. The available time scales are as follows: 10 min, 30 min*, 1 hr, 2 hr, 4 hr, 8 hr, 12 hr (Trend information is always maintained for each parameter, even when not displayed.) The selected trend time is displayed to fit the trend space allocated by the split screen selection. The Trend Time setting selection applies to all waveforms. 2. Press Trend Time for three or more seconds to clear the trend memory. When changing alarm limits, a visible gap may appear in the SaO2 and Pulse Rate trend display. This indicates that the data point for that position was not recorded. NOTE: The SaO2 trend area displays two parameters, % SaO2 and Pulse Rate. The SaO2 waveform is a plethysmograph waveform.

2ECORD 1. Press Record (12) with the 2000RS set for "CO2" and "Auto" to print the real-time capnogram and the available digital information. To record real-time trend of CO2, the recorder should be set to run at 1 or 5 mm/min. and CO2 selected. Using the user configuration mode, % SaO2 can be super-imposed on the CO2 real-time trend.

* default values

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#AL During MULTINEX / Gas Module operation, an internal calibration process can be performed for CO2, N2O, and Agent. 1. Press Cal (13) to begin this calibration process. WARNING: Parameters are not monitored during this calibration. It is normal for the MULTINEX / Gas Module to automatically recalibrate on a periodic basis, if the measurement bench begins to drift.

!LARMS Visual alarm data is provided on the right side of the CRT. This data appears upon initial power-up and disappears after 15 seconds. Press SELECT (33) to recall alarm data at any time. Alarm data is also displayed when AUTO SET (30) is pressed. This information is displayed for 15 seconds. Alarm limits are considered violated if the displayed value equals or exceeds the upper limit or is equal to or below the lower alarm limit. Upon an alarm violation, alarm limits appear with the violated parameter highlighted. The alarm limit visual indicators will remain until the alarm condition no longer exists.

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The following chart outlines the available alarm parameters, the low and high alarm ranges, and the audio tones associated with the alarm violation. Alarm Parameters, Range, and Audio Response Displays on Models All

Parameter

Range

ETCO2 (Torr)

All

Inspired O2 (%)

All

Inspired CO2 (Torr) Resp. Rate (bpm)

All 4000ID Plus 4000 Plus 4200 4000ID Plus 4000 Plus 4200 4000ID Plus 4000 Plus 4100 Plus Gas Module 4000ID Plus 4000 Plus 4200 4000ID Plus 4000ID Plus

SaO2 (% SaO2)

Pulse Rate (bpm)

Inspired Agent (%)

Sensor Off Check Sensor No Pulse Wrong Agent Mixed Agent

Default

Audio Response

High - 20-80 Low - 0-60, Off High - 40-95, Off Low - 18, 20-80 High - 0-25, Low - 0-25, Off High - 5-95, Off Low - 2-10, Off High - 80-99, Off Low - 50-85, Off 86-95, Off Hi - 100-250, Off Low - 30-99, Off

Units Increments 5 5 5 5 5 5 5 1 1 5 1 5 5

80 Off Off 18 15 Off Off 2 Off 85 Off Off

Continuous on violation Continuous on violation Beep 1/4 s; every 10 s Continuous on violation Beep 1/4 s;on violation Beep 1/4 s; every 10 s Beep 1/4 s; every 10 s Beep 1/4 s; every 10 s Continuous on violation Continuous on violation Continuous on violation Continuous on violation Continuous on violation

High - 0-20 Low - 0-3, Off

1 1

6 Off

Continuous on violation Beep 1/4 s; every 10 s

n/a

n/a n/a

4 second warning tone

4 second warning tone 2 beeps

NOTES: • SaO2 and Pulse Rate alarms are not available when using an external oximeter. Warning tones and SaO2 messages will also not be present. • LED displays always flash once per second during each violation. Violated alarm limit is displayed in reverse graphics on the CRT. • CO2 alarms can also be set in % or KPa, but only to whole numbers (1%, 2%, etc...). • Alarm limits are considered violated if the displayed value equals or exceeds the upper alarm limit or is equal to or below the lower alarm limit.

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The MULTINEX / Gas Module alarms on all alarm limit violations and for the following apnea conditions: Breath not Detected During Normal Monitoring after: 28-32 seconds 43-47 seconds 60 seconds

Audio Response A 1/4 second audible alarm tone at the selected alarm loudness Two 1/4 second audible alarm tones at the selected alarm loudness A 4 second audible alarm tone at maximum volume followed by a 16 second audible alarm tone at the selected alarm loudness. the total 20 seconds of alarm is modulated at 1 Hz.

If a valid breath is detected during this sequence the alarm timer and CRT message reset. Initially, the apnea alarm is disabled until the unit detects two initial breaths. NOTE: During a cal sequence apnea conditions are detected but, alarm is delayed until cal is completed.

!LARM +EYS 3ETTING !LARMS Six keys are used to control the alarm function of the MULTINEX / Gas Module. They are: AUTO SET (30), SELECT (33), HI (32), LO (31), AUDIO MUTE (16), and AUDIO VOLUME (15). Alarms can be set manually by using the SELECT (33), HI (32), and LO (31) keys, or automatically.

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