CWE GEMINI Instruction Manual
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CWE GEMINI Instruction Manual

End-tidal o2 & co2 analyzer
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Instruction Manual
GEMINI
End-tidal O
Read instructions carefully before operating this device.
This device is not to be used for Human Life Support applications.
To avoid possible electrical shock, do not operate this device if is wet or has had
liquids spilled onto it.
Service or calibration procedures should only be performed by qualified
personnel familiar with the electrical hazards of line-powered devices.
& CO
Analyzer
2
2
Ardmore PA 19003 U.S.A.
(610)642-7719
info@cwe-inc.com
©CWE 2023
www.cwe-inc.com

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Summary of Contents for CWE GEMINI

  • Page 1 Instruction Manual GEMINI End-tidal O & CO Analyzer Read instructions carefully before operating this device.  This device is not to be used for Human Life Support applications.  To avoid possible electrical shock, do not operate this device if is wet or has had liquids spilled onto it.
  • Page 2 LIFE SUPPORT POLICY Instruments manufactured by CWE, Incorporated are not authorized for use as critical components in human life support devices or systems. "Life support devices or systems", as used herein, are devices or systems whose failure to perform, whether through misuse, failure, or proper operation, can reasonably be expected to result in significant injury to the operator or subject persons.

  • Page 3: Table Of Contents

    & CO Analyzer Instruction Manual TABLE OF CONTENTS 1.0 INTRODUCTION .................... 4 3.0 SETTING UP THE GEMINI ................6 4.0 OPERATION ....................7 4.1 SAMPLE FLOW ..................... 7 4.11 MINIMIZING SAMPLE TUBING VOLUME ..........7 4.12 SAMPLE FLOW RATE ................7 4.2 CONDITIONING THE SAMPLE ..............

  • Page 4: Introduction

    These alarms have adjustable high and low limits, which are remembered by the instrument and reinstated when it is next used. A special feature of the GEMINI is an open module slot that can hold any of the SYSTEM 1000 instrumentation modules. Available modules include a cardiotachometer, blood pressure monitor, and many other functions.
  • Page 5 Serial data output format ....... 9600 baud, 8 data, no parity, 1 stop bit Electrical requirements ........120VAC/220VAC switchable, 35VA Dimensions (main unit) ......19W x 5.25H x 16D in., 49W x 13H x 41D cm Weight ....................10 lbs. (4.5kg) © 2023 CWE, Inc.

  • Page 6: Setting Up The Gemini

    Analyzer Instruction Manual 3.0 SETTING UP THE GEMINI  Place the GEMINI control unit in a stable location close to the subject or animal being monitored. Note that the output signals are on the rear panel. When monitoring small animals, it is desirable to locate the unit as close to the animal as possible, to minimize sample tube volume.

  • Page 7: Operation

    Smaller flow rates can be used, with a consequent increase in response time. The GEMINI monitor can be used with a wide range of animals. For use with rodents and similar sized animals, special considerations are necessary because of their very small volumes and fast respiratory rates.

  • Page 8: Conditioning The Sample

    The fourth line shows a bar graph of the fast CO measurement. This serves as a quick visual indicator of changing . The fourth line also serves as a message area for special conditions, such as alarms or errors. © 2023 CWE, Inc.

  • Page 9: Calibration

    & CO Analyzer Instruction Manual 4.4 CALIBRATION Calibrating the GEMINI is straightforward. Because of the inherent linearity of the analyzers, only a two-point calibration is required. For CO calibration, a 5% CO in air calibration mixture is ideal. For O calibration, 100% nitrogen or other oxygen-free gas is required.

  • Page 10: Analog Output Signals (Rear Panel)

    <cr> character (ASCII 13). This format allows for easy importation into spreadsheets or other analysis software. The protocol used is 9600,N,8,1 which is almost universally available using any terminal program ( e.g., Windows HyperTerminal). © 2023 CWE, Inc.

  • Page 11: Maintenance

    & CO Analyzer Instruction Manual 5.0 MAINTENANCE The GEMINI monitor requires no routine maintenance, other than periodically replacing the in-line hydrophobic filter. This filter is inserted in the sample line between the sample tubing and the on the front panel of the SAMPLE INLET instrument.

  • Page 12: Ordering Information

    GEMINI O & CO Analyzer Instruction Manual 6.0 ORDERING INFORMATION Accessories and replacement parts for the GEMINI are available from CWE, Inc. The following table describes these items and gives the Part Numbers. PART No. DESCRIPTION ====== =================================================== 14-10000 GEMINI CO Analyzer (complete unit) ®...

  • Page 13: Connection Diagrams

    GEMINI O & CO Analyzer Instruction Manual CONNECTION DIAGRAMS © 2023 CWE, Inc.

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