HoyaメーカーOM-25Aの使用説明書/サービス説明書
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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.
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.
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.
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.
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.
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 ...................
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.
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.
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.
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.
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.
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.
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.
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 .
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.
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.
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 .
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.
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.
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.
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/Ana.
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 defec.
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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 .
デバイスHoya OM-25Aの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Hoya OM-25Aをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはHoya OM-25Aの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Hoya OM-25Aの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Hoya OM-25Aで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Hoya OM-25Aを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はHoya OM-25Aの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Hoya OM-25Aに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちHoya OM-25Aデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
