Datex-Ohmeda Tec 7 User's Reference Manual
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Datex-Ohmeda Tec 7 User's Reference Manual

Datex-Ohmeda Tec 7 User's Reference Manual

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Tec 7 Vaporizer
User's Reference Manual

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Summary of Contents for Datex-Ohmeda Tec 7

  • Page 1 Tec 7 Vaporizer User’s Reference Manual...
  • Page 2 Datex-Ohmeda and by Datex-Ohmeda trained personnel. The Product must not be altered without the prior written approval of Datex-Ohmeda. The user of this Product shall have the sole responsibility for any malfunction which results from improper use, faulty maintenance, improper repair, damage, or alteration by anyone other than Datex-Ohmeda.

  • Page 3: Table Of Contents

    What is a Tec 7 Vaporizer? ........
  • Page 4 Tec 7 Vaporizer 5 Maintenance User maintenance ..........5-1 Maintenance intervals .

  • Page 5: Precautions

    Do not attempt to use a vaporizer that has been dropped. A dropped vaporizer MUST be sent to the nearest Datex-Ohmeda Field Operations Unit for servicing. Do not use malfunctioning equipment. Make all necessary repairs or have the equipment serviced by an authorized Datex-Ohmeda service center.

  • Page 6: Symbols

    Requests for servicing facilities, advice or assistance must be addressed to a local Datex-Ohmeda office. Additional copies of this manual, can be requested from a local Datex-Ohmeda Field Operations Unit or a Datex-Ohmeda Authorized Distributor. Datex-Ohmeda strongly recommends that you keep all relevant documentation, including this manual and accompanying labels, immediately available to all users.

  • Page 7: What Is A Tec 7 Vaporizer

    2 Description What is a Tec 7 Vaporizer? The Tec 7 Vaporizer is designed for use in continuous flow techniques of inhalation anesthesia. Each vaporizer is agent specific and is clearly labeled with the anesthetic agent that it is designed for.
  • Page 8 Improper use may result in patient injury. This manual and its associated documentation must be studied before any attempt is made to install, operate or clean any part of the Tec 7 Vaporizer. The performance of the anesthesia machine and vaporizer can be degraded if the machine and vaporizer are mis-matched.

  • Page 9: Components

    2 Description Components Control dial A single control dial with a concentration scale calibrated in percentage of anesthetic agent vapor per total volume (% v/v) sets the desired concentration of the anesthetic agent. A dial release in the dial assembly helps prevent accidental displacement of the control dial from the position.
  • Page 10 Tec 7 Vaporizer w WARNING Do not affix any additional labels or markings to the back panel. They may adversely affect the operation of the vaporizer identification unit. HALO THAN 1. Vaporizer identification label Figure 2-2 • Vaporizer identification label...

  • Page 11: Vaporizer Mounting Procedure

    Selectatec Manifolds but the interlock system is designed to function on Selectatec Series Mounted Manifolds only. Mounting a Tec 7 Vaporizer on a Selectatec 7 Compatibility Block is not recommended. w w w w WARNING Do not lift or support the vaporizer by holding the control dial.

  • Page 12: Mounting The Vaporizer

    Tec 7 Vaporizer Mounting the vaporizer Step 1 Set the dial to Figure 3-1 • Setting the concentration dial Step 2 Unlock the locking lever. • Turn the lever counter-clockwise. • Make sure the lever releases. Figure 3-2 • Unlocking the locking lever Step 3 Prepare the manifold.
  • Page 13 3 Setup and Mounting Procedure Step 4 Install the vaporizer onto the manifold. • Hold the main body of the vaporizer in an upright position with both hands . • Lower the vaporizer onto the manifold, ensuring that the vaporizer interlock block ports engage correctly with the manifold port valves.

  • Page 14: Checking The Vaporizer For Correct Mounting

    Tec 7 Vaporizer Checking the vaporizer for correct mounting w w w w WARNING To help ensure correct operation, do not use a vaporizer that is either visibly out of line on the manifold or that can be lifted off the manifold when the locking lever is in the locked position.
  • Page 15 3 Setup and Mounting Procedure Step 2 Locked Unlock the locking lever. • Turn the locking lever counter- clockwise. • Release the locking lever and check that the locking lever springs up to the unlocked position to release the vaporizer Unlocked from the manifold.
  • Page 16 Tec 7 Vaporizer 1175-0013-000...

  • Page 17: Setting The Dial

    Datex-Ohmeda strongly recommends the use of anesthesia gas monitoring with this equipment. Refer to local standards for mandatory monitoring.
  • Page 18 Tec 7 Vaporizer Step 1 Press the dial release and turn the dial in a counter-clockwise direction from setting. Note that it is not possible to turn on the vaporizer if an adjacent Tec series, (except Tec 3) is turned on.

  • Page 19: Filling And Draining The Vaporizer

    4 Operating Instructions Filling and draining the vaporizer w w w w WARNING Do not fill the vaporizer with any agent other than the agent specified on the front label. The vaporizer is designed for that agent only. If any substance other than that specified is used, patient injury could occur.
  • Page 20 Tec 7 Vaporizer When filling the Tec 7 Vaporizer, observe the following: • Periodically check the agent level. The vaporizer should be refilled at appropriate intervals. The vaporizer is designed to function according to specification as long as there is agent visible above the mark.

  • Page 21: Filling Procedure With Funnel Filler

    4 Operating Instructions Filling procedure with funnel filler w WARNING Before filling a vaporizer equipped with a funnel filler, turn the cap slowly to allow any pressure to gradually vent. Ensure that the drain plug screw, located on the lower front of the vaporizer, is correctly tightened to help prevent loss of liquid agent.

  • Page 22: Draining Procedure With Funnel Filler

    Tec 7 Vaporizer Draining procedure The vaporizer must only be drained into a properly marked container. with funnel filler w w w w CAUTION Do not allow the container to become completely full during draining procedures. Step 1 Remove the filler cap. Insert the tool...

  • Page 23: Filling Procedure With Easy-Fil

    4 Operating Instructions Filling procedure with Easy-Fil ™ w w w w WARNING Ensure that the drain plug screw, located on the lower front of the vaporizer, is correctly tightened to help prevent loss of liquid agent. The filling system consists of three elements: •...

  • Page 24: Draining Procedure With Easy-Fil

    Tec 7 Vaporizer Draining procedure with Easy-Fil w w w w CAUTION Do not allow the container to become completely full during draining procedures. The vaporizer must only be drained into a properly marked container. Step 1 Remove the cap from the vaporizer filler.

  • Page 25: Filling Procedure With Quik-Fil

    4 Operating Instructions Filling procedure with Quik-Fil ™ w w w w WARNING Ensure that the drain plug screw, located on the lower front of the vaporizer, is correctly tightened to help prevent loss of liquid agent. Step 1 Remove the protective cap from the anesthetic agent bottle filler, checking that the bottle and filler mechanism are not damaged.

  • Page 26: Draining Procedure With Quik-Fil

    Tec 7 Vaporizer Draining procedure with Quik-Fil w w w w CAUTION Do not allow the container to become completely full during draining procedures. The vaporizer must only be drained into a properly marked container. Step 1 Remove the cap from the vaporizer filler.

  • Page 27: User Maintenance

    5 Maintenance User maintenance w w w w WARNING Do not modify, tamper with, or disassemble the vaporizer. Doing so can damage the unit and alter the graduation accuracy. Maintenance intervals Prior to performing any maintenance procedures or returning to a service center for repairs, clean and disinfect the vaporizer.

  • Page 28: Cleaning

    Remove the vaporizer from service immediately and label the vaporizer stating that it is contaminated. Discard all liquid. Return the vaporizer to a Datex-Ohmeda Authorized Service Center stating that the vaporizer is contaminated and, if possible, the type of contaminant in the vaporizer.

  • Page 29: Checking The Calibration

    To help to achieve the reliability and consistency of performance of the Tec 7 Vaporizer, Datex-Ohmeda uses closely specified test conditions, test methods and detailed protocol in conjunction with training, experience and quality auditing systems.

  • Page 30: Analytical Techniques

    Analytical techniques For field checking of the state of calibration, many techniques and analyzers are available. Datex-Ohmeda would not recommend any one technique or analyzer in preference to another, but the calibration and reliability of analyzers must be realistically considered and account must be taken of errors of use.

  • Page 31: Service Policy

    25% of the values listed above. Service Policy Repairs and service procedures must be performed at a Datex-Ohmeda Authorized Service Center. Contact your Datex-Ohmeda Service Representative or Datex-Ohmeda Authorized Distributor for information on maintenance and shipping.
  • Page 32 Tec 7 Vaporizer 1175-0013-000...

  • Page 33: Interlock Mechanism

    Delivery of gas/agent vapor Overview The output concentration of the Tec 7 Vaporizer is regulated by the ‘variable flow-split’ method described in the following text and shown in figures 6-1 and 6-2. A total flow of fresh gas from upstream flowmeters enters the vaporizer from the flowmeter where it is immediately split into two streams.

  • Page 34: Bypass Circuit

    Tec 7 Vaporizer Bypass circuit The bypass circuit includes the gas transfer manifold and also a thermostat assembly that is located at the base of the vaporizer. The fresh gas flows through the bypass circuit vertically downwards across the sump base through the thermostat and back up the gas transfer manifold to the common gas outlet as shown in Figure 6-1.
  • Page 35 6 Principle of Operation 1. Rotary valve 2. Enriched fresh gas out 3. Combined fresh gas and enriched gas out 4. Fresh gas bypass 5. Fresh gas out 6. Thermostat 7. Vaporizing chamber 8. Wick assembly 9. IPPV compensating assembly 10.
  • Page 36 Tec 7 Vaporizer 1175-0013-000...

  • Page 37: Calibration

    All specifications are nominal and subject to change without notice. Calibration Check the calibration certificate that is included with your Tec 7 Vaporizer. Vaporizers are calibrated at 21°C using an oxygen carrier gas at a flow of 5 liters/ minute and they are temperature, flow and pressure compensated within the specified operating range.

  • Page 38: Performance

    Tec 7 Vaporizer Performance Accuracy at 5 liters/ Vaporizer 5%: ± 0.25% of delivered agent or ± 15% dial setting min O 21 ± 2 °C (whichever is greater) Vaporizer 8%: ± 0.4% of delivered agent or ± 15% dial setting...

  • Page 39: Flow Characteristics

    7 Specifications Flow characteristics Isotec 5% Flowrate (liters/minute oxygen) Figure 7-1 • Effect of Flowrate at 21 ± 2° C with oxygen flowing Temperature °C Figure 7-2 • Effect of temperature at 5 liters/minute with oxygen flow 1175-0013-000...
  • Page 40 Tec 7 Vaporizer Fluotec 5% Flowrate (liters/minute oxygen) Figure 7-3 • Effect of Flowrate at 21 ± 2° C with oxygen flowing Temperature °C Figure 7-4 • Effect of temperature at 5 liters/minute with oxygen flow 1175-0013-000...
  • Page 41 7 Specifications Sevotec 5% Flowrate (liters/minute oxygen) Figure 7-5 • Effect of Flowrate at 21 ± 2° C with oxygen flowing Temperature °C Figure 7-6 • Effect of temperature at 5 liters/minute with oxygen flow 1175-0013-000...
  • Page 42 Tec 7 Vaporizer Enfluratec 5% Flowrate (liters/minute oxygen) Figure 7-7 • Effect of Flowrate at 21 ± 2° C with oxygen flowing Temperature °C Figure 7-8 • Effect of temperature at 5 liters/minute with oxygen flow 1175-0013-000...
  • Page 43 7 Specifications Sevotec 8% Flowrate (liters/minute oxygen) Figure 7-9 • Effect of Flowrate at 21 ± 2° C with oxygen flowing Temperature °C Figure 7-10 • Effect of temperature at 5 liters/minute with oxygen flow 1175-0013-000...

  • Page 44: Effects Of Variables

    The figures are approximate and are intended for general guidance only. Barometric pressure The Tec 7 Vaporizer is calibrated in percent v/v at 760 mmHg. If the ambient pressure changes the % v/v changes, so that at an ambient pressure P mmHg the delivered...

  • Page 45: Ambient Temperature

    7 Specifications Ambient temperature The effects of variation in temperature are normally negligible at commonly used combinations of dial setting and ambient temperature. If the vaporizer temperature is above the range shown on the performance curves, the vaporizer output may be unpredictably high, particularly if the temperature of the agent approaches the agent boiling point specified by the agent manufacturer.

  • Page 46: Carrier Gas Composition

    Refer to Performance Curves in this chapter for full information. The valve design and temperature compensation system of Tec 7 Vaporizers reduces the effects to levels such that, under most clinical conditions, their effect on vaporizer performance is not clinically significant.
  • Page 47 Warranty This Product is sold by Datex-Ohmeda under the warranties set forth in the following paragraphs. Such warranties are extended only with respect to the purchase of this Product directly from Datex-Ohmeda or Datex-Ohmeda’s Authorized Dealers as new merchandise and are extended to the Buyer thereof, other than for the purpose of resale.
  • Page 48 Tel +30 10 9625136-7 Fax +30 10 9623687 The addresses listed on this cover are current as of 4/02. For any location changes, please visit our website at www.datex-ohmeda.com and click on the Contacts button. Datex-Ohmeda, Inc. PO Box 7550...

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