Related Manuals for Maxtec MAXO2 OM-25ME
Summary of Contents for Maxtec MAXO2 OM-25ME
- Page 1 ® OXYGEN MONITOR MODEL OM-25ME (OM-25ME-L) USER’S GUIDE OPERATING INSTRUCTIONS R213M05 Rev. H manufactured by: ®...
- Page 3 Manufacturer: Maxtec, Inc European Representative Airox S.A. Parcd’activities Pau-Pyrenees L’echangeur BP833 64008 PAU Cedex France...
- Page 4 PREFACE This manual describes the function, operation and maintenance of the Maxtec Model OM-25ME and OM-25ME-L oxygen monitors. Notes are included where differences may occur between the two monitors. As members of Maxtec's MAXO line of oxygen analyzers and monitors, the OM-25ME utilizes the Maxtec MAX-250E oxygen sensor and is engineered for fast response, maximum reliability and stable performance.
- Page 5 To avoid explosion, do not operate the Oxygen monitor in the presence of flammable anesthetics or in an atmosphere of explosive gases. Operating the oxygen monitor in flammable or explosive atmospheres may result in fire or explosion. Never allow an excess length of cable near the patient’s head or neck, as such could result in strangulation.
- Page 6 The OM-25ME-L™ oxygen monitor has been manufactured with a low alarm setting adjustable down to 15% This change is within the guidelines set forth in ASTM Specification F1462-93. The OM-25ME-L™ is labeled to indicate this feature. Classification: Protection against electric shock: Internally powered equipment. Protection against water: Ordinary equipment Mode of Operation: Continuous Sterilization: See section 6...
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Page 7: Table Of Contents
TABLE OF CONTENTS 1. SYSTEM OVERVIEW ........... Base Unit Description ......Components Description ......MAX-250E Oxygen Sensor ......6 2. SET-UP PROCEDURE ......... Battery Installation ........Calibrating the MAXO Monitor ....7 2.2.1 Before You Begin ......2.2.2 To Calibrate the MAXO Monitor ... -
Page 8: System Overview
1. SYSTEM OVERVIEW Base Unit Description The MAXO (Model OM-25ME) 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 temperature. •... -
Page 9: Components Description
Components Description (please refer to page 3) LCD Readout -Digit Display- The 3 -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- In the calibration mode, the "%" sign flashes every second. - Page 10 LCD Readout Alarm LEDs Keypad External Probe OM-25ME...
- Page 11 Alarm LEDs Low Alarm LED- In a low alarm condition, the red "LOW ALARM" LED will flash each second, accompanied by the alarm beeper. High Alarm LED- In a high alarm condition, the red "HIGH ALARM" LED will flash each second, accompanied by the alarm beeper.
- Page 12 ↑ ↑ and ↓ ↓ Keys- The ↑ and ↓ arrow keys are used in conjunction with the CALIBRATE key to calibrate the unit or in conjunction with the LOW SET and HIGH SET keys to adjust the alarm settings. When used after pressing the CALIBRATE key, pressing the ↑ or ↓...
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Page 13: Max-250E Oxygen Sensor
MAX-250E Oxygen Sensor MAX-250E oxygen sensors offer quick response, stability and extra life on the order of 900,000 percent hours. The MAX-250E is a galvanic, partial pressure sensor that is specific to oxygen. It consists of two electrodes (a cathode and an anode), a teflon membrane and an electrolyte. -
Page 14: Set-Up Procedure
2. SET-UP PROCEDURE Battery Installation All MAXO units are powered by two, AA, alkaline batteries (2 x 1.5 Volts) and are shipped without the batteries installed. The battery compartment is accessible from the back side of the unit. To install the batteries: 1) With the thumb, press down on the center of the battery compartment cover and slide the cover off of the instrument case. -
Page 15: To Calibrate The Maxo Monitor
be performed when the geographic elevation at which the product is being used changes by more than 500 feet. The sensor is best calibrated while mounted in the industry standard, 15mm I.D. “T” adapter. As in normal operation, the oxygen sensor responds best when installed in a vertical position with the sensor facing down. -
Page 16: Automatic Calibration To Room Air
6) Use the ↑ and ↓ arrow keys to adjust the displayed oxygen concentration to the level of the known concentration. Pressing the arrow keys changes the value in .1% increments. If the keys are held down for more than 1 second the display will scroll at a rate of .4% per second. -
Page 17: Factors Influencing Calibration
To use this function: 1) Place the external probe in room air. 2) Press the LOCK\UNLOCK key to unlock the keypad. 3) Press and hold down the CALIBRATE key. When the "%" sign starts to flash, press the ↓ arrow key to set the calibration value to 20.9%. - Page 18 Pressure Effect Readings from the MAXO Monitor are proportional to the partial pressure of oxygen. The partial pressure of Oxygen (PO ) is equal to the percentage of oxygen (%O ) times the absolute pressure (AP) at which the sample enviroment is measured. (PO x AP).
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Page 19: Operating Instructions
3. OPERATING INSTRUCTIONS 3.1 Alarm Setting Procedure 3.1.1 Low Alarm Setting To adjust the low alarm setting: 1) Press the LOCK/UNLOCK key to unlock the keypad. 2) Press the LOW SET key. The "LOW" icon will start to flash. 3) Use the ↑ and ↓ arrow keys to set the low alarm to the desired value. -
Page 20: Basic Operation
The high alarm value cannot be set closer than 1% from the low alarm value due to ASTM specifications. For example, if the low alarm is set at 50%, the system will not accept a high alarm setting less than 51%. Setting the high alarm to 100% turns off or deactivates the high alarm. -
Page 21: Sensor Removal And Replacement
4. SENSOR REMOVAL AND REPLACEMENT The OM-25ME is shipped with a new MAX-250E oxygen sensor installed. Although the sensor has a very long expected life, eventually the sensor will require replacement. Removing or installing a sensor, when necessary, is a very simple procedure. To remove and install a new sensor: 1) Grasp the sensor in one hand and, with the other hand, unscrew the cable connector counter-clockwise at the sensor. -
Page 22: Problem Solving
5. PROBLEM SOLVING • If the "LOW BAT" icon is displayed on the LCD readout at any time, the batteries should be replaced as quickly as possible. • When the unit is in the power on mode and the LCD displays "000%," the sensor is not connected properly. -
Page 23: Specifications
7. SPECIFICATIONS 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. Total Accuracy: ±3% Actual Oxygen Level over full operating temperature range. Response Time: 90% of final value in approximately 15 seconds at 23 C... -
Page 24: Applications
8. APPLICATIONS 8.1 Exposure to Anesthetic Gases Because of the unique chemistry of the oxygen sensors provided with the MAXO Monitor, there are no significant effects when exposed to commonly used anesthetic gases, however, the monitor is not designed for exposure to flammable gas mixtures. (See WARNING page i) 8.2 Calibration Techniques in Pressurized Systems Similar to other oxygen sensors, the Maxtec MAX series sensors measure the partial pressure of oxygen in a gas stream. -
Page 25: Calibration Errors
8.3 Calibration Errors The MAXO Monitors 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 limits stored within the instrument’s memory, a flashing “CAL Er” is displayed. The error code is displayed to indicate that either the sensor should be replaced or that there is a fault in the calibration process. - Page 26 Additionally, gas streams of high humidity may tend to condense on the sensor. Condensation on the sensor may eventually affect performance. For this reason, it is recommended that the sensor be mounted in a vertical position, facing downward to prevent condensate from flowing onto the sensing surface.
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Page 27: Spare Parts And Accessories
9. SPARE PARTS AND ACCESSORIES Part Number Item R12503-002 MAX-250E Sensor R212P91 Battery Cover R103P16 Monitor/Analyzer External Cable R212P17 Keypad R212P10 LCD Display R212P30-001 PCBA Board Accessories R106P15 Concentrator Adapter for Sensor Probe R205P86 Monitor/Analyzer Wall Mount Bracket R206P75 Monitor/Analyzer Pole Mount Clamp R213P02 Monitor/Analyzer Protective Carrying Case R213P31... -
Page 28: Warranty
10. WARRANTY The MAXO Monitor is designed for medical oxygen delivery equipment and systems. Under normal operating conditions, Maxtec warrants the MAXO Monitor 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 maintained in accordance with Maxtec’s operating instructions. - Page 30 Maxtec, Inc. 6526 South Cottonwood Street Salt Lake City, UT 84107 General Tel: 801-266-5300 Toll Free Dial: 800-748-5355 FAX: 801-270-5590 Home Page: http://www.maxtecinc.com email: sales@maxtecinc.com...
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