Operators Manual
Contents
1. MAXO2 A MAXOz AE MaxOo OPERATING MANUAL amp INSTRUCTIONS FOR USE R217M40 Rev N Maxtec TEL 800 748 5355 Mi 2305 South 1070 West FAX 801 270 5590 Salt Lake City Utah 84119 email sales maxtec com USA website www maxtec com Authorized Representative Geen 286 d 01 29 6436 AM Amstenrade The Netherlands ae CLASSIFICATION Protection against electric SROCK 222222220 Internally powered equipment Protection against Waters ccc cies ae ae IPX1 Mode of Operation cierro dia aa Continuous UE le EE See section 7 0 Flammable anesthetic mixture Not suitable for use in presence of a flammable anesthetic mixture Product Disposal Instructions The sensor batteries and circuit board are not suitable for regular trash disposal Return sensor to Maxtec for proper disposal or dispose according to local guidelines Pa Follow local guidelines for disposal of other components oe WARRANTY The MAXO2 Analyzer is designed for medical oxygen delivery equipment and systems Under normal operating conditions Maxtec warrants the MAXOz Analyzer to be free from defects of workmanship or materials for a period of 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 Based on Maxtec product evaluation Maxtec s sole obligation under the foregoing warranty is limited to making replacements re2. calibration is required when The measured Oz percentage in 100 Oz is below 99 0 Oz The measured O2 percentage in 100 Oz is above 101 0 Oz The CAL reminder Icon is blinking at the bottom of the LCD If you are unsure about the displayed O2 percentage see Factors influencing accurate readings A simple calibration may be made with the sensor open to static ambient air For optimum accuracy Maxtec recommends that the Sensor be placed in a closed loop circuit where gas flow is moving across the sensor in a controlled manner Calibrate with the same type of circuit and flow that you will use in taking your readings 2 2 1 In Line Calibration Flow Diverter Tee Adapter 1 Attach the diverter to the MAXO2 by threading it on to the bottom of the sensor 2 Insert the MAXO2 in the center position of the tee adapter figure 2 A 3 Attach an open ended reservoir to the end of the tee adapter Then start the calibration flow of oxygen at two liters per minute Six to 10 inches of corrugated tubing works well as a reservoir A calibration oxygen flow to the MAXO2 of two liters per minute is recommended to minimize the possibility of obtaining a false calibration value 4 Allow the oxygen to saturate the sensor Although a stable value is usually observed within 30 seconds allow at least two minutes to ensure that the sensor is completely saturated with the calibration gas 5 If the MAXO2 is not already turned
3. hyperoxia Follow the procedures outlined in this user manual Not for use in an MRI environment Device specified for dry gas only Never allow an excess length of tubing lanyard or sensor cable near the patient s head or neck which may result in strangulation Before use all individuals who will be using the MAXO2 must become thoroughly familiar with the information contained in this Operation Manual Strict adherence to the operating instructions is necessary for safe effective product performance This product will perform only as designed if installed and operated in accordance with the manufacturer s operating instructions Use only genuine Maxtec accessories and replacement parts Failure to do so may seriously impair the analyzer s performance Repair of this equipment must be performed by a qualified service technician experienced in repair of portable hand held medical equipment Calibrate the MAXO2 weekly when in operation or if environmental conditions change significantly ie Elevation Temperature Pressure Humidity refer to Section 3 0 of this manual Use of the MAXO2 near devices that generate electrical fields may cause erratic readings If the MAXO2 is ever exposed to liquids from spills or immersion or to any other physical abuse turn the instrument OFF and then ON This will allow the unit to go through its self test to assure everything is operating correctly Never autocl
4. on do so now by pressing the 866 4 Maxtec www maxtec com analyzer ON button 6 Press the Cal button on the MAXO2 until you read the word CAL on the analyzer display This can take approximately 3 seconds The analyzer will now look for a stable sensor signal and a good reading When obtained the analyzer will display the calibration gas on the LCD NOTE Analyzer will read Cal Err St if the sample gas has not stabilized 2 2 2 Direct Flow Calibration Barb 1 Attach the Barbed Adapter to the MAXO2 by threading it on to the bottom of the sensor 2 Connect the Tygon tube to the barbed adapter figure 2 B 3 Attach the other end of the clear sampling tube to a source of oxygen with a known oxygen concentration value Initiate flow of the calibration gas to the unit Two liters per minute is recommended 4 Allow the oxygen to saturate the sensor Although a stable value is usually observed within 30 seconds allow at least two minutes to ensure that the sensor is completely saturated with the calibration gas 5 If the MAXO2 is not already turned on do so now by pressing the analyzer ON O button 6 Press the Cal Y button on the MAXO2 until you read the word CAL on the analyzer display This can take approximately 3 seconds The analyzer will now look for a stable sensor signal and a good reading When obtained the analyzer will display the calibration gas on the LCD 3 0 FACTORS INFLUENCING ACCURATE R
5. per manufacturer s instructions The parts must be thoroughly dry before they are reused Sterilizing The flow diverter and tee adapter may be sterilized using Cidex steam or ethylene oxide per manufacturer s instructions Due to the varying conditions imposed on the materials during sterilization it is not possible to determine the exact number of times the sterilization processes can be carried out Therefore Maxtec recommends that operators carefully examine the flow diverter and tee adapter after sterilization and prior to use to verify that the item is fit for use The operator should verify that there are no cracks and the item does not show any indication of material changes or physical damage that may compromise its effective use Both flow diverter and tee adapter should be free of any chemical residue remaining from the sterilization process Because of the variability of the cleaning disinfecting and sterilizing processes Maxtec cannot provide specific sterilization instructions nor can the sterility of the item be ensured Therefore we highly recommend referring to the manufacturer s instructions on the details of method 8 0 SPECIFICATIONS 8 1 Base Unit Specifications Measurement Range ed Asa rs ar rs ea een ernennen 0 100 RRESOMWEON ns EE 0 1 Accuracy and Linearity 1 of full scale at constant temperature R H and pressure when calibrated at full scale Total Accuracy s ee ne ia 3 actual ox
6. 05 South 1070 West Salt Lake City Ut 84119 Include RMA number issued by customer service 12 866 4 Maxtec www maxtec com
7. 2 Temperature ENects a en dann bite Ao ri 5 3 3 Pressure ENCCIS 2 4 exe ea see ee Re Sek We whee eee 6 3 4 Humidity Effects e NIESEN NEEN nee ee 6 4 0 CALIBRATION ERRORS AND ERROR CODES 6 5 0 CHANGING THE BATTERIES 0 cece eee eee eee eee 7 6 0 CHANGING THE OXYGEN SENSOR 0 c eee eee eee eens 8 6 1 MAXO29FA Model soii genin pees eas ee eae ee eee ee here ede 8 6 2 MAXOS9 AE Model yp iaig cuae tia wets As 9 7 0 CLEANING AND MAINTENANCE 00000 9 8 0 SPECIFICATIONS 0 0 coccccco eee eee 10 8 1 Base Unit Specifications 022 sr nennen 10 8 2 SENSO SPECIICAONS rasa is eE ar wen Wa dae ere ple aan ack en 11 9 0 MAXO2 SPARE PARTS AND ACCESSORIES 11 9 1 Included with Your Hot EIER 222 a ee Ree eee 11 9 2 Standard Replacement Parts 11 9 3 Optional ACCESSOMES ecos e en 12 ele Ree TEEN 12 3 2 Mo nting Options EE 12 3 3 Carrying giele acer a edel 12 866 4 Maxtec www maxtec com lll 1 0 SYSTEM OVERVIEW 1 1 Base Unit Description The MAXO2 analyzer provides unparalleled performance and reliability due to an advanced design that includes the following features and operational benefits Extra life oxygen sensor of approximately 1 500 000 O2 percent hours 2 year warranty Durable compact design that permits comfortable hand held operation and easy to clean Operation using only two AA Alkaline batteries 2 x 1 5 Volts for approximately 5000 hours of perfo
8. EADINGS 3 1 Elevation Pressure Changes Changes in elevation result in a reading error of approximately 1 of reading per 250 feet In general calibration of the instrument should be performed when elevation at which the product is being used changes by more than 500 feet This device does not automatically compensate for changes in barometric pressure or altitude If the device is moved to a location of a different altitude it must be recalibrated before use 3 2 Temperature Effects The MAXO2 will hold calibration and read correctly within 3 when at thermal equilibrium within the operating temperature range The device must be thermally stable when calibrated and allowed to thermally stabilize after experiencing temperature changes before readings are accurate For these reasons the following is recommended For best results perform the calibration procedure at a temperature close to the temperature where analysis will occur Allow adequate time for the sensor to equilibrate to a new ambient temperature 866 4 Maxtec www maxtec com 5 CAUTION CAL Err St may result from a sensor that has not reached thermal equilibrium When used in a breathing circuit place the sensor upstream of the heater 3 3 Pressure Effects Readings from the MAXO2 are proportional to the partial pressure of oxygen The partial pressure is equal to the concentration times the absolute pressure Thus the readings are propor
9. ave immerse or expose the MAXO2 including sensor to high temperatures gt 70 C Never expose the device to pressure irradiation vacuum steam or chemicals This device does not contain automatic barometric pressure compensation Although the sensor of this device has been tested with various anesthesia gases including nitrous oxide Halothane Isoflurane Enflurane Sevoflurane and Desflurane and found to have acceptably low interference the device in entirety including electronics is not suitable for use in the presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide Only the threaded sensor face flow diverter and T adapter may be allowed to contact such a gas mixture NOT for use with inhalation agents Operating the device in flammable or explosive atmospheres may result in fire or explosion CAUTION Indicates a potentially hazardous situation if not avoided could result in minor or moderate injury and property damage Federal Law USA restricts this device to sale by or on the order of a physician Replace the batteries with recongnized high quality AA Alkaline or Lithium batteries Do NOT use rechargeable batteries If the unit is going to be stored not in use for 1 month we recommend that you remove the batteries to protect the unit from potential battery leakage The Maxtec MAX 250 oxygen sensor is a sealed device containing a mild acid electrolyte lead Pb a
10. cally perform a calibration and begin displaying of oxygen 7 0 CLEANING AND MAINTENANCE Store the MAXO2 analyzer in a temperature similar to its ambient environment of daily use The instruction given below describes the methods to clean and disinfect the instrument sensor and its accessories e g flow diverter tee adapter Instrument Cleaning When cleaning or disinfecting the exterior of the MAXO2 analyzer take appropriate care to prevent any solution from entering the instrument Do not immerse unit in fluids The MAXO2 analyzer surface may be cleaned using a mild detergent and a moist cloth 866 4 Maxtec www maxtec com 9 The MAXO2 analyzer is not intended for steam ethylene oxide or radiation sterilization Oxygen Sensor WARNING Never install the sensor in a location that will expose the sensor to patient s exhaled breath or secretions unless you intend to dispose of the sensor flow diverter and tee adapter after use Clean exterior surface of the the sensor with a cloth moistened with isopropyl alcohol 65 alcohol water solution Maxtec does not recommend use of spray disinfectants because they can contain salts which can accumulate in the sensor membrane and impair readings The oxygen sensor is not intended for steam ethylene oxide or radiation sterilization Accessories The flow diverter and tee adapter may be disinfected by washing them with isopropyl alcohol or Cidex
11. half of the case HELPFUL HINT Be sure to orient the new sensor by aligning the red arrow on the sensor with the arrow in the back case A small tab is located on the back case that is designed to engage the sensor and prevent it from rotating within the case figure 4 NOTE If the oxygen sensor is installed incorrectly the case will not come back together and the unit may be damaged when the screws are reinstalled NOTE If the new sensor has red tape over the outside remove it then wait 30 minutes before calibrating Reconnect the oxygen sensor to the connector on the printed circuit board Carefully bring the two halves of the case together while positioning the wires to ensure they are not pinched between the two case halves Make sure the sensor is fully inserted and in the proper orientation Reinsert the three screws and tighten until the screws are snug Verify the unit operates properly The device will automatically perform a calibration and begin displaying of oxygen 6 2 MAXO2 AE Model Should the oxygen sensor require changing the device will indicate this by presenting Cal Err lo on the display Unthread the sensor from the cable by rotating the thumbscrew connector counterclockwise and pull the sensor from the connection Replace the new sensor by inserting the electrical plug from the coiled cord into the receptacle on the oxygen sensor Rotate the thumbscrew clockwise until snug The device will automati
12. nd lead acetate Lead and lead acetate are hazardous waste constituents and should be disposed of properly or returned to Maxtec for proper disposal or recovery Do not use ethylene oxide sterilization Do not immerse the sensor in any cleaning solution autoclave or expose the sensor to high temperatures Dropping sensor can adversely affect its performance The device will assume a percent oxygen concentration when calibrating Be sure to apply 100 oxygen or ambient air concentration to the device during calibration or the device will not calibrate correctly Note This product is latex free II 866 4 Maxtec www maxtec com TABLE OF CONTENTS EE Le e DEER Warranty ia a in US Il 1 0 SYSTEM OVERVIEW coor SEN IN ci NNN ae aa 1 1 1 Base Unit Description Aa Kee NEE EE EE dee a 1 Sue Be Te 1 1 3 Component Identification ooooocooocconcoconrococoo 2 1 4 Component Description ns ora 2 1 5 MAX 250 Oxygen Sensor 0 eee ee En a nee 3 2 0 OPERATING INSTRUCTIONS eee 3 2 1 Getting Started 32 2 2204 ere a ct baad be 3 21 1 Protect apena ets en ENEE 3 2 1 2 Automatic Calibration AE ENEE NEEN EEN eee eee ee 3 2 2 Calibrating the MAXO2 Oxygen Analyzer 4 2 2 1 In line Calibration Flow Diverter Tee Adaptor 4 2 2 2 Direct Flow Calibration Gab 5 3 0 FACTORS INFLUENCING ACCURATE READINGS 5 3 1 Elevation Changes A dee ea ae nage OP be aan be 5 3
13. nsor attached MAXO2 A Open unit and disconnect and reconnect sensor Unit should perform an auto calibration and should read 20 9 If not contact Maxtec Customer Service for possible sensor replacement MAXO2 AE Disconnect and reconnect external sensor Unit should perform an auto calibration and should read 20 9 If not contact Maxtec Customer Service for possible sensor replacement or cable replacement 866 4 Maxtec www maxtec com E03 No valid calibration data available Make sure unit has reached thermal equilibrium Press and hold the Calibration Button for three seconds to manually force a new calibration E04 Battery below minimum operating voltage Replace batteries CAL Err St 02 Sensor reading not stable Wait for displayed oxygen reading to stabilize when calibrating the device at 100 oxygen Wait for unit to reach thermal equilibrium Please note that this can take up to one half hour if the device is stored in temperatures outside the specified operating temperature range CAL Err lo Sensor voltage too low Press and hold the Calibration Button for three seconds to manually force a new calibration If unit repeats this error more than three times contact Maxtec Customer Service for possible sensor replacement CAL Err hi Sensor voltage too high Press and hold the Calibration Button for three seconds to manually force a new calibration If unit repeats this error more than three times contact Maxtec Cus
14. ons Rere fana x x R207P17 Threaded Adapter with Tygon Tubing x rmor1o001 Fow Derer x x Re1ePo2 BlueTeeAdanter x r217Pas ooer x 9 2 Standard Replacement Parts and Accessories Part Number Item A Model AE Model r zspo2or max250r Omgen Sensor x R 2sP02 002 MAX 250E Oxygen Sensor era Jee owen Sensor CTN CE wh RP06P25 4 40 Pan Head Stainless Steel Screw x x R217P16 001 Front Assembly Includes Board amp E a LCD R217P11 002 Back Assembly Oox x R217P24 Coiled Cable Assembly In 866 4 Maxtec www maxtec com 11 9 3 Optional Accessories 9 3 1 Optional Adapters Part Number Item RP16P02 Blue Tee Adapter R103P90 Perfusion Tee Adapter RP16P12 Long Neck Tee Adapter RP16P05 Pediatric Tee Adapter RP16P10 MAX Quick Connect R207P17 Threaded Adapter with Tygon Tubing 9 3 2 Mounting Options requires dovetail R217P23 Part Number Item R206P75 Pole Clamp R205P86 Wall Mount R213P31 Swivel Mount R100P10 Rail Mount 9 3 3 Carrying Options Part Number Item R217P22 Belt Clip and Pin R213P02 Zipper Carrying Case with Shoulder Strap R213P56 Deluxe Carrying Case Water Tight R217P32 Soft Case Tight Fit Carrying Case Repair of this equipment must be performed by a qualified service technician experienced in repair of portable hand held medical equipment Equipment in need of repair should be sent to Maxtec Customer Service Department 23
15. out of oxygen concentrations in the range of 0 105 0 100 1 to 105 0 used for calibration determination purposes The digits also display error codes and calibration codes as necessary 2 Low Battery Indicator The low battery indicator is located at the top of the display and is only activated when the voltage on the batteries is below a normal operating level Gi symbol The sign is located to the right of the concentration number and is present during normal operation Calibration symbol Y The calibration symbol is located at the bottom of the display and is timed to activate when a calibration is necessary 5 ON OFF Key O This key is used to turn the device on or off 6 Calibration Key Y This key is used to calibrate the device Holding the key for more than three seconds will force the device to enter a calibration mode Sample Inlet Connection This is the port at which the device is connected to determine oxygen concentration 2 866 4 Maxtec www maxtec com 1 5 MAX 250 Oxygen Sensor The MAX 250 oxygen sensor offers stability and extra life The MAX 250 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 Oxygen diffuses through the teflon membrane and immediately reacts at a gold cathode Concurrently oxidation occurs electrochemically at the lead anode generating an elect
16. pairs or issuing credit for equipment found to be defective This warranty extends only to the buyer purchasing the equipment directly from Maxtec or through Maxtec s designated distributors and agents as new equipment Maxtec warrants MAXO2 oxygen sensor in the MAXO2 Analyzer to be free from defects in material and workmanship for a period of 2 years from Maxtec s date of shipment in a MAXO3 unit Should a sensor fail prematurely the replacement sensor is warranted for the remainder of the original sensor warranty period Routine maintenance items such as batteries are excluded from warranty Maxtec and any other subsidiaries shall not be liable to the purchaser or other persons for incidental or consequential damages or equipment that has been subject to abuse misuse mis application alteration negligence or accident These warranties are exclusive and in lieu of all other warranties expressed or implied including warranty of merchantability and fitness for a particular purpose 866 4 Maxtec www maxtec com oe WARNINGS Ay Indicates a potentially hazardous situation if not avoided could result in death or serious injury Never install the sensor in a location that will expose the sensor to patient s exhaled breath or secretions unless you intend to dispose of the sensor flow diverter and tee adapter Improper use of this device can cause inaccurate oxygen readings which can lead to improper treatment hypoxia or
17. per minute 2 liters per minute is recommended 3 Using the ON OFF key make sure the unit is in the power ON mode u RE 4 Allow the oxygen reading to stabilize This will normally take about 30 seconds or more oe CD 866 4 Maxtec www maxtec com 2 2 Calibrating the MAXO2 Oxygen Analyzer NOTE We recommend use of medical grade oxygen at 100 when calibrating the MAXOo The MAXO2 Analyzer should be calibrated upon initial power up Thereafter Maxtec recommends calibration on a weekly basis To serve as a reminder a one week timer is started with each new calibration At the end of one week a reminder icon Y will appear on the bottom of the LCD Calibration is recommended if the user is unsure when the last calibration procedure was performed or if the measurement value is in question Start calibration by pressing the key for more than 3 seconds The MAXO2 will automatically detect if you are calibrating with 100 oxygen or 20 9 oxygen normal air SDo not attempt to calibrate to any other concentration For hospital and home care a new calibration is required when The measured Oz percentage in 100 Oz is below 97 0 Oz The measured Oz percentage in 100 Oz is above 103 0 Oz The CAL reminder Icon is blinking at the bottom of the LCD If you are unsure about the displayed O2 percentage see Factors influencing accurate readings For ID testing or optimum accuracy a new
18. rical current and providing a voltage output Electrodes are immersed in a unique gelled weak acid electrolyte which is responsible for the sensors long life and motion insensitive characteristis Since the sensor is specific to oxygen the current generated is proportional to the amount of oxygen present in the sample gas When no oxygen is present there is no electrochemical reaction and therefore negligible current is produced In this sense the sensor is self zeroing 2 0 OPERATING INSTRUCTIONS 2 1 Getting Started 2 1 1 Protect Tape Prior to turning on the unit a protective film covering the threaded sensor face must be removed After removing the film wait approximately 20 minutes for the sensor to reach equilibrium 2 1 2 Automatic Calibration After the unit is turned on it will automatically calibrate to room air The display should be stable and reading 20 9 CAUTION The device will assume a percent oxygen concentration when calibrating Be sure to supply 100 oxygen or ambient air concentration to the device during calibration or the device will not calibrate correctly To check the oxygen concentration of a sample gas after the unit has been calibrated 1 Connect the Tygon tubing to the bottom of the analyzer by threading the barbed adapter onto the oxygen sensor figure 2 B 2 Attach the other end of the sample hose to the sample gas source and initiate flow of the sample to the unit at a rate of 1 10 liters
19. rmance with continuous use For extra extended long life two AA Lithium batteries may be used Oxygen specific galvanic sensor that achieves 90 of final value in approximately 15 seconds at room temperature Large easy to read 3 1 2 digit LCD display for readings in the 0 100 range Simple operation and easy one key calibration Self diagnostic check of analog and microprocessor circuitry Low battery indication Calibration reminder timer that alerts the operator using a calibration icon on the LCD display to perform a unit calibration 1 2 Symbol Guide The following symbols and safety labels are found on the MAXO2 a Follow instructions for use On off Button A Warning Eb Meets ETL standards Listed Calibration Button Oe BAT Low Battery Percent E Do not throw away Follow local guidelines for disposal Manufacturer Y Calibration required Serial Number R Federal Law USA restricts this device to onl Sa sale by or on the order of a physician Do Not Catalog Number EC REP Authorized Representative EC REP in the European Community 866 4 Maxtec www maxtec com Lot code Batch code El il EE Drip Proof 1 3 Component Identification LCD Display Keypad COOLS OOS Sample Inlet Connection FIGURE 1 1 4 Component Description 3 1 2 Digit Display The 3 1 2 digit liquid crystal display LCD provides direct read
20. s The gasket separating the halves will S 3 FIGURES be captured on the back case half V Reinsert the three screws and tighten until the screws are snug figure 3 The device will automatically perform a calibration and begin displaying of oxygen HELPFUL HINT If unit does not function verify that the screws are tight to allow proper electrical connection HELPFUL HINT MAXO2 AE Before closing the two case halves together verify that the keyed slot on top of the coiled cable assembly is engaged on the small tab located on the back case This is designed to position the assembly in the correct orientation and prevent it from rotating Improper positioning could hinder the case halves from closing and prevent operation when tightening the screws 6 0 CHANGING THE OXYGEN SENSOR 6 1 MAXO2 A Model Should the oxygen sensor require changing the device will indicate this by presenting Cal Err lo on the display after initiating a calibration To change the oxygen sensor begin by removing the three screws from the back of the device A 1 phillips screwdriver is required to remove these screws Once the screws are removed gently separate the two halves of the device Disconnect the oxygen sensor from the printed circuit board by pressing the un lock lever first and then pulling the connector out of the receptacle FIGURE 4 866 4 Maxtec www maxtec com The oxygen sensor can now be replaced from the back
21. tional to the concentration if the pressure is held constant Therefore the following are recommended Calibrate the MAXO2 at the same pressure as the sample gas If sample gases flow through tubing use the same apparatus and flow rates when calibrating as when measuring 3 4 Humidity Effects Humidity non condensing has no effect on the performance of the MAXO2 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 The device responds to the actual oxygen concentration rather than the dry concentration Environments where condensation may occur are to be avoided since moisture may obstruct passage of gas to the sensing surface resulting in erroneous readings and slower response time For this reason the following is recommended Avoid usage in environments greater than 95 relative humidity When used in a breathing circuit place the sensor upstream of the humidifier HELPFUL HINT Dry sensor by lightly shaking moisture out or flow a dry gas at two liters per minute across the sensor membrane 4 0 CALIBRATION ERRORS AND ERROR CODES The MAXO2 analyzers have a self test feature built into the software to detect faulty calibrations oxygen sensor failures and low operating voltage These are listed below and include possible actions to take if an error code occurs E02 No se
22. tomer Service for possible sensor replacement CAL Err Bat Battery voltage too low to recalibrate Replace batteries 5 0 CHANGING THE BATTERIES Batteries should be changed by service personnel Use only brand name batteries Replace with two AA batteries and insert per orientation marked on the device Should the batteries require changing the device will indicate this in one of two ways The battery icon on the bottom of the display will begin to flash This icon will continue to flash until the batteries are changed The unit will continue to function normally for approximately 200 hours If the device detects a very low battery level an error code of E04 will be present on the display and the unit will not function until the batteries are changed To change the batteries begin by removing the three screws from the back of the device A 1 Phillips screwdriver is required to remove these screws Once the screws are removed gently separate the two halves of the device The batteries can now be replaced from the back half of the case 866 4 Maxtec www maxtec com 7 Be sure to orient the new batteries as indicated in the embossed polarity on the back case NOTE If the batteries are installed incorrectly the batteries will not make contact and the device will not operate Carefully bring the two halves of the case together while positioning the wires so they are not pinched between the two case halve
23. ygen level over full operating temp range Response Time ooooo o 90 of final value in approximately 15 seconds at 23 C Warm up TIMES oia a rte te is None required Operating Temperature 15 C 40 C 59 F 104 F Storage Temperature 15 C 50 C 5 F 122 F 10 866 4 Maxtec www maxtec com Humidity PA narnia deed tate heen drew ed bas alee donna aa 0 95 non condensing Power Requirements seen 2 AAAlkaline batteries 2 x 1 5 Volts Battery DIE taras de approximately 5000 hours with continuous use Low Battery Indication ieie ia etica wee He ea ds BAT icon displayed on LCD ET Maxtec MAX 250 series galvanic fuel cell Expected Sensor Life ooooo ooooo gt 1 500 000 O2 percent hours minimum 2 year in typical medical applications Dimensions A Model Dimensions 3 0 W x 4 0 H x 1 5 D 76mm x 102mm x 38mm Neben geben AE ne ENEE a E Aa RT 0 4 lbs 170g AE Model Dimensions 3 0 W x 36 0 H x 1 5 D 76mm x 914mm x38mm Height includes external cable length retracted AE WEE ne ee A re ana eh ehe 0 6 lbs 285g Drift of Measurement 222 222 lt 1 of full scale at constant temperature pressure and humidity 8 2 Sensor Specifications ye Galvanic fuel sensor 0 100 BEER 2 years in typical applications 9 0 MAXO2 SPARE PARTS AND ACCESSORIES 9 1 Included With Your Unit Part Number tem A Model AE Model eee Instructi
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