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Manual Hoya OM-25A

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  • Hoya OM-25A - page 1

    OXYGEN ANAL YZER MODEL OM-25A USER’S GUIDE AND OPERA TING INSTRUCTIONS R213M15 Rev . K ® manufactured by: R213M15K.qxd 6/26/2006 8:59 AM Page 1 ...

  • Hoya OM-25A - page 2

    Manufacturer: Maxtec, Inc European Representative Airox S.A. Parcd’activities Pau-Pyrenees L ’echangeur BP833 64008 P AU Cedex France R213M15K.qxd 6/26/2006 8:59 AM Page 2 ...

  • Hoya OM-25A - page 3

    i PREF ACE This manual describes the function, operation and maintenance of the Maxtec Model OM-25A hand-held oxygen analyzer . A member of Maxtec's MAXO 2  analyzer line of oxygen analyzers and monitors, the OM-25A utilizes the MAX-250 oxygen sensor and is engineered for fast response, maximum reliability and stable performance. The OM-25A ...

  • Hoya OM-25A - page 4

    ii T o avoid explosion, do not operate the oxygen analyzer in the presence of flammable anesthetics or in an atmosphere of explosive gases. Operating the oxygen analyzer in flammable or explosive atmospheres may result in fire or explosion. Never allow an excess length tubing near the patient’ s head or neck, as such could result in strangulation ...

  • Hoya OM-25A - page 5

    iii Classification: Protection against electric shock: Internally powered equipment. Protection against water: Ordinary equipment Mode of Operation: Continuous S terilization: See section 6 Safety of application in the presensence of a flammable anesthetic mixture: See section 8.1 F AILURE TO COMPL Y WITH THESE W ARNINGS AND CAUTIONS COULD RESUL T ...

  • Hoya OM-25A - page 6

    iv T ABLE OF CONTENTS 1. SYSTEM OVERVIEW ............................................. 1 1.1 Base Unit Description ................................ 1 1.2 Component s Description ......................... 2 1.3 MAX-250 Oxygen Sensor ............................. 4 2. SET -UP PROCEDURE ......................................... 5 2.1 Battery Inst alla ...

  • Hoya OM-25A - page 7

    1 1. SYSTEM OVERVIEW 1.1 Base Unit Description The MAXO 2  analyzer (Model OM-25A) provides unparalleled performance and reliability , due to an advanced design that includes the following features and operational benefits. • Fast-responding, oxygen-specific, galvanic sensor that achieves 90% of final value in approximately 15 seconds at room ...

  • Hoya OM-25A - page 8

    2 CD Readout 3 1 / 2 -Digit Display- The 3 1 / 2 -digit liquid crystal display (LCD) provides direct readout of oxygen concentrations in the range of 0-100%. It also displays "CAL" when the calibration mode is entered. "%" Sign- The "%" sign is present during normal operation when the keypad settings are locked. When t ...

  • Hoya OM-25A - page 9

    3 LCD Readout Keyp ad Sample Inlet Connection A B C 1 2 3 4 5 7 6 OM-25A R213M15K.qxd 6/26/2006 8:59 AM Page 5 ...

  • Hoya OM-25A - page 10

    4 changed using the ↑ and ↓ arrow keys. During calibration, the "%" sign will flash at a once per second rate. When the calibration value is set, pressing the CALIBRA TE or LOCK/UNLOCK key will cause the unit to exit the calibration mode and return to normal operation. The unit will also revert to normal operation if 10 seconds elapse ...

  • Hoya OM-25A - page 11

    5 2. SET -UP PROCEDURE 2.1 Battery Inst allation All MAXO 2  analyzer units are powered by two, AA alkaline batteries (2 x 1.5 V olts) and are shipped without the batteries installed. The battery compartment is accessible from the back side of the unit. T o install the batteries: 1) With the thumb, press down on the center of the battery compart ...

  • Hoya OM-25A - page 12

    6 It is best to calibrate the MAXO 2  analyzer to a known documented oxygen concentration at a pressure and flow similar to your clinical application. Calibrating the MAXO 2  analyzer at lower concentrations with a known oxygen value is also acceptable and may provide additional accuracy if the calibration gas is closer to the environment in ...

  • Hoya OM-25A - page 13

    7 8) When the calibration value is set, press the CALIBRA TE or LOCK/UNLOCK key again to accept the calibration setting and return to normal operation. Note: If the message "CAL", followed by the message "Er" flashes on the display af ter entering the desired calibration value, the system has determined that the entered value wi ...

  • Hoya OM-25A - page 14

    8 4) Release both the CALIBRA TE key and the ↓ key . The unit will automatically enter the “LOCKED” condition and return to normal operation. 2.2.4 Factors Influencing Calibration The primary factors influencing the MAXO 2  analyzer are temperature, pressure, and humidity . Effect s of T emperature The MAXO 2  analyzer will hold calibra ...

  • Hoya OM-25A - page 15

    9 Humidity Effect Humidity has no effect on the performance of the MAXO 2  analyzer other than diluting the gas, as long as there is no condensation. Depending on the humidity , the gas may be diluted by as much as 4%, which proportionally reduces the oxygen concentration from the dry concentration. Environments where condensation may occur are ...

  • Hoya OM-25A - page 16

    10 3) Remove the expired sensor from the sensor compartment and carefully pull apart the small white connector that connect s the black and red sensor wires to the analog input wiring. NOTE: The sensor cont ains lead and lead acetate, be sure to dispose of expired sensors in accordance with hospit al, local, state and federal regulations. 4) Remove ...

  • Hoya OM-25A - page 17

    11 5. PROBLEM SOL VING • If the "LOW BA T" icon is displayed on the LCD readout at any time, the batteries should be replaced as soon as possible. • When the unit is in the power on mode and the LCD displays "000%," the sensor is not connected properly . Check the sensor connection and if the condition persists, cont act the ...

  • Hoya OM-25A - page 18

    12 7. SPECIFICA TIONS 7.1 Base Unit Specifications Measurement Range: 0.0-100% Resolution: 0.1% Accuracy and Linearity: ±1% of full scale at constant temperature, R.H. and pressure when calibrated at full scale. T otal Accuracy: ±3% Actual Oxygen Level over full operating temperature range. Response T ime: 90% of final value in approximately 15 s ...

  • Hoya OM-25A - page 19

    13 8. APPLICA TIONS 8.1 Exposure to Anesthetic Gases Because of the unique chemistry of the oxygen sensors provided with the MAXO 2  analyzer , there are no significant effects when exposed to commonly used anesthetic gases, however , the analyzer is not designed for exposure to flammable gas mixtures. (See W ARNING page i) 8.2 Calibration T ech ...

  • Hoya OM-25A - page 20

    14 8.3 Calibration Errors The MAXO 2  analyzers have a self test feature built into the software to detect faulty calibrations. During calibration, if the signal from the oxygen sensor is outside the limit s stored within the instrument’s memory , a flashing “CAL Er” is displayed. The error code is displayed to indicate that either the sen ...

  • Hoya OM-25A - page 21

    15 9. SP ARE P ARTS AND ACCESSORIES Part Number Item R125P01-002 MAX-250 Internal Sensor R212P91 Battery Cover R212P17 Keypad R212P10 LCD Display R212P30-002 PCBA Board Accessories R213P02 Monitor/Analyzer Protective Carrying Case R213M15 OM-25A Operating Instructions R213M66 T echnical Service Manual Although normal usage will not require repair , ...

  • Hoya OM-25A - page 22

    16 10. W ARRANTY The MAXO 2  Analyzer is designed for medical oxygen delivery equipment and systems. Under normal operating conditions, Maxtec warrants the MAXO 2  Analyzer to be free from defects of workmanship or materials for a period of two (2) years from the date of shipment from Maxtec, provided that the unit is properly operated and ma ...

  • Hoya OM-25A - page 23

    R213M15K.qxd 6/26/2006 8:59 AM Page 19 ...

  • Hoya OM-25A - page 24

    Maxtec, Inc. 6526 South Cottonwood S treet Salt Lake City , UT 84107 General T el: 801-266-5300 T oll Free Dial: 800-748-5355 F AX: 801-270-5590 Home Page: http://www .maxtecinc.com email: sales@maxtecinc.com R213M15K.qxd 6/26/2006 8:59 AM Page 20 ...

Manufacturer Hoya Category Oxygen Equipment

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Hoya OM-25A.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Hoya OM-25A, service manual, brief instructions and user manuals Hoya OM-25A. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Hoya OM-25A.

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A complete manual for the device Hoya OM-25A, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Hoya OM-25A by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Hoya OM-25A.

A complete Hoya manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Hoya OM-25A - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Hoya OM-25A, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Hoya OM-25A, that we can find in the current document
3. Tips how to use the basic functions of the device Hoya OM-25A - which should help us in our first steps of using Hoya OM-25A
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Hoya OM-25A
5. FAQ - Frequently Asked Questions
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