MiniOX 1A Oxygen Analyzer Manual Read More
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1. Figure 3 1 MiniOX 1A Installation Effects of Pressure Humidity and Temperature To ensure accurate and reliable oxygen analysis a thorough understanding of the effects of pressure humidity and temperature on the sensor is necessary Effects of Pressure The sensor actually senses partial pressure of oxygen not percentage Changes in barometric pressure change the reading even if the percent of oxygen in the sample remains constant Partial pressure of oxygen PO equals the percent of oxygen O times x the pressure at which the sample is measured mmHg mercury PO 0 mmHg P N 806129 Rev 1 09 2010 MiniOX 1A Oxygen Analyzer Section 3 Operation For example At sea level the pressure equals 760 mmHg and dry air contains 2196 O Therefore PO 21 760 mmHg PO 160 mmHg If the instrument is calibrated to read 21 at 160 mmHg partial pressure and the instrument is then moved to an area above sea level where the atmospheric pressure is 700 mmHg a lower reading is found due to a lower partial pressure PO 21 700 mmHg PO 147 mmHg The percent reading on the instrument is derived by the following formula x 21 147 mmHg _ 19 3 160 mmHg Therefore to eliminate error caused by pressure changes the instrument must be calibrated at the pressure and flow rate at which it is to be used Do not expose the sensor to pressure outside the range o2. acathode ananode The gold cathode is exposed to the atmosphere through a fluoropolymer membrane The lead anode is submersed in a potassium hydroxide solution 2 1 Section 2 Principle of Operation When oxygen diffuses through the membrane the electrochemical reduction of oxygen on the cathode and the corresponding oxidation of the anode generate an electrical current The current produced is proportional to the partial pressure of oxygen in the sample atmosphere The resulting electrical current is monitored temperature compensated and amplified to drive the display The sensor is self zeroing when no oxygen is present to be chemically reduced minimal current is produced Thus approximately zero percent oxygen is displayed P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Section 3 Operation Section 3 Operation Set up Procedures 1 Remove the contents from the shipping carton and verify that you have one each of the following items MiniOX 1A Oxygen Analyzer e 9 Volt Alkaline Battery e Oxygen Sensor in its container e MiniOX 1A Operation Manual Service Guide CD Tubing Male Universal Nipple Adapter 2 Remove the four screws holding the back panel in place 3 Install the battery 4 Remove the sensor from its container 5 Place green washer over threads of sensor then screw the sensor into the flow block and hand tighten Do not overtighten or cross thread 6 Plug
3. P N 806129 Rev 1 09 2010
4. 10 Medical Corporation always there for life MiniOx 1A Oxygen Analyzer Operation Manual THIS MANUAL MUST BE READ CAREFULLY PRIOR TO THE OPERATION OF THIS DEVICE THIS DEVICE WILL PERFORM AS DESIGNED ONLY IF USED IN ACCORDANCE WITH THE MANUFACTURER S INSTRUCTIONS IMPROPER USE MAY CAUSE THE DEVICE TO FAIL TO PERFORM AS DESIGNED AND MAY CAUSE INJURY TO THE PATIENT AND OR HEALTHCARE PROFESSIONAL The warranties made by Ohio Medical Corporation with respect to these products are voided if the products are not installed used and serviced in accordance with the instructions in this manual Please protect yourself and your patients by following them We encourage our customers to write or call regarding this equipment prior to use or for any additional information relative to use or repairs This product is not intended as a life sustaining or life supporting device FEDERAL USA LAW RESTRICTS THIS DEVICE TO SELL BY OR ON THE ORDER OF A PHYSICIAN Ohio Medical Corporation 1111 Lakeside Drive Gurnee IL 60031 USA 1 866 549 6446 fax 1 847 855 6218 www ohiomedical com P N 806129 Rev 1 09 2010 Ohio Medical Corporation Medical Instrument Warranty This product is sold by Ohio Medical under the warranties set forth in the following paragraphs Such warranties are extended only with respect to the purchase of this product directly from Ohio Medical or Ohio Medical s Authorized Dealers as new merchandise and are
5. er than seven 7 days after the expiration date of the applicable warranty to the designated Ohio Medical Service Office during normal business hours transportation charges prepaid and which upon Ohio Medical s examination is found not to conform with the above warranties Ohio Medical shall not be otherwise liable for any damages including but not limited to incidental damages consequential damages or special damages There are no express or implied warranties which extend beyond the warranties herein above set forth Ohio Medical makes no warranty of merchantability or fitness for a particular purpose with respect to the product or parts thereof P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer General WARNINGS and CAUTIONS General WARNINGS and CAUTIONS a warRNING 1 The MiniOX 1A Oxygen Analyzer will perform to specifications only if it is used and serviced in accordance with the manufacturer s instructions This instrument is to be used only by qualified trained personnel who have carefully read the operating manual and labels and who have observed the information set forth If this instrument does not perform as described in this manual the instrument must not be used until the condition is rectified The MiniOX 1A Oxygen Analyzer should be calibrated prior to each use A two point calibration check should be performed weekly See Section 3 Operation If the instrument can not be calibrated the senso
6. extended to the first Buyer thereof other than for purpose of resale For a period of twelve 12 months from the date of original delivery to Buyer to Buyer s order or to an Ohio Medical Authorized Dealer this product other than its expendable parts is warranted to be free from functional defects in materials and workmanship and to conform to the description of the product contained in the service manual and accompanying labels and or inserts provided that the same is properly operated under conditions of normal use that regular periodic maintenance and service is performed and that replacements and repairs are made in accordance with the instructions provided This same warranty is made for a period of sixty 60 days with respect to the expendable parts The foregoing warranties shall not apply if the product has been repaired other than by Ohio Medical or in accordance with written instructions provided by Ohio Medical or altered by anyone other than Ohio Medical or if the product has been subject to abuse misuse negligence or accident Ohio Medical s sole and exclusive obligation and Buyer s sole and exclusive remedy under the above warranties is limited to repairing or replacing free of charge at Ohio Medical s option a product which is telephonically reported to the nearest Ohio Medical Regional Service Office and which if so advised by Ohio Medical is thereafter returned with a statement of the observed deficiency not lat
7. f 600 to 900 mmHg 23 62 to 35 43 inches Hg as this can produce instrument errors Effects of Humidity The presence of humidity in an oxygen sample decreases the actual concentration of oxygen Humidity in a sample has the same effects as diluting the sample with another gas For example If 100 oxygen is saturated with 100 humidity the actual concentration of oxygen drops from 100 to 96 97 The instrument indicates this drop in concentration Effects of Temperature Each MiniOX 1A sensor is desensitized to temperature changes using a thermistor temperature variable resistor located within the sensor Variations in the sensor reading due to temperature changes are less than 3 when used or calibrated between 0 to 40 degrees centigrade By using the instrument close to the temperature at which it is calibrated variations can be minimized Operating Temperature Range 0 to 40 C 32 to 104 F Do not use instrument outside operating temperature range Do not handle the sensor more than necessary during calibration or use Body heat can cause the sensor s thermistor to change disproportional to the change in gas sample temperature at the sensing electrode This can produce some error until thermal equilibrium is restored P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Section 4 Section 4 Maintenance and Care Maintenance and Care Battery Replacement The MiniOX 1A Oxygen Analyzer re
8. ing sensor to high temperatures 70 C Never expose the device to pressure irradiation vacuum steam or chemicals other than alcohol or mild cleaning agents Clean the instrument and sensor by wiping with a cloth lightly dampened with Isopropyl Alcohol or mild detergent Make sure that no moisture seeps into the instrument case Instrument When cleaning or disinfecting the instrument care must be taken to prevent entry of solutions into the instrument case Cleaning The external surfaces of the unit may be cleaned by wiping them with a cloth moistened with a mild detergent solution Disinfection The external surfaces of the unit may be disinfected by wiping them with a cloth moistened with ethanol or Cidex The instrument is not designed to withstand the conditions imposed by steam ethylene oxide or radiation sterilization P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Section 5 Specifications Section 5 Specifications Performance Specifications Interferent Gases and Vapors Range 0 100 O BY VOL INTERFERENT Display Resolution 0 1 O increments INTERFERENT UME DRY EQUIVALENT Linearity 2 of full scale GAS OF PERCENT O Accuracy 2 of full scale Carbon Dioxide ae LO BAT appears on the Cyclopropane lt 0 1 OU alo display Diethyl Ether lt 1 5 Warm Up Time Enfurane 05 o o Temperature 0 to 40 C 32 to 104 F Halothane lt 0 9 ange Helium 20 2 Storage Temperatu
9. m dex etium eres 4 1 P N 806129 Rev 1 09 2010 MiniOx 1 Oxygen Analyzer Table of Contents Section 5 o A 5 1 Performance Specifications sosa 5 1 Interferent Gases and Vapors card eint 5 1 Instrument Replacement Pag erneuern 5 1 NN PO SESERAORBPERRPERBERTERRRERBPIRLFEBELEFERPEERENEEREECESELUEUHLERPETENEBPRRENDERTIETEHERTEPEREEERENDERGRGEUAEEEHEREPERNNN 5 1 TOC 2 P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Section 1 Introduction Section 1 Introduction The MiniOX 1A Oxygen Analyzer is designed to provide spot checking of oxygen concentrations from pressure swing absorptive devices e g oxygen concentrators This instrument is not equipped with an audible or visual alarm and therefore must MiniOx 7 OXYGEN ANALYZER not be used in a life support system The MiniOX 1A Oxygen Analyzer Figure 1 1 Operates by a single push of a switch Calibrates with the turn of a dial Features an easy to read digital display The galvanic oxygen sensor measures oxygen concentrations from 0 to 100 The sensor is maintenance free and will operate for one year in Figure 1 1 normal medical use 9 MiniOX 1A Oxygen Analyzer 141 P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Section 2 Principle of Operation Each MiniOX 1A Oxygen Analyzer uses a galvanic oxygen sensor which is long lived and maintenance free The sensor consists of two electrodes
10. play incorrect erratic values or to stop operating Special attention should be paid to the patient if this occurs 8 Never use the MiniOX 1A Oxygen Monitor in combustible atmosphere such as occurs with flammable anesthetics Such use could result in ignition of atmosphere 9 Never allow an excess length of cable near the patient s head or neck as such could result in strangulation Secure excess cable to the bed rail or other suitable object FAILURE TO COMPLY WITH THESE WARNINGS CAN RESULT IN SERIOUS INJURY OR DEATH OF THE PATIENT 1 Remove internal battery if unit is to be non operational for extended periods of time 2 Observe polarity when inserting a new battery Incorrect connection may cause damage to the instrument 3 The MiniOX 1A Oxygen Monitor must never be immersed in any cleaning solution autoclaved or exposed to temperatures greater than 70 C 4 Use only Ohio Medical Corporation replacement parts and accessories listed in Section 3 of this manual Analyzers can only be used with Ohio Medical Corporation sensors Failure to do so may seriously impair the instrument s performance FAILURE TO COMPLY WITH THESE CAUTIONS CAN RESULT IN INSTRUMENT DAMAGE WC 1 P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer General WARNINGS and CAUTIONS Definition of WARNINGS and CAUTIONS Statement citing a potential safety hazard and E nity ts voor orators Statement citing a possibility of damage
11. quires one 9 volt alkaline battery To replace the battery 1 Verify the instrument is turned OFF If it is ON press the ON OFF switch on the side panel to turn the instrument OFF 2 Remove the back panel which is held in place by four small screws 3 Remove and safely or properly discard the old battery replace with a new battery 4 Replace the back panel and reinstall the screws 5 Wait 10 seconds after connecting the new battery before turning the instrument ON 6 Recalibrate the instrument See Section 3 Calibration Sensor Replacement Under no circumstances should any adjustments other than those outlined in this procedure be made to other controls in the instrument Any alteration of other controls may affect the operation and accuracy of the instrument and will void the warranty When the MiniOX 1A Oxygen Analyzer is unable to be calibrated or gives erratic readings the sensor must be replaced To replace the sensor 1 Verify the instrument is turned OFF If it is ON press the ON OFF switch on the side panel to turn the instrument OFF 2 Remove the old sensor by un threading the sensor from the flow block 3 Thread the new sensor into the flow block and hand tighten 4 1 Do not overtighten or cross thread 4 Recalibrate the instrument See Section 3 Calibration Cleaning Disinfection and Sterilization Never autoclave immerse or expose the MiniOX 1A Oxygen Analyzer includ
12. r must be replaced If the instrument still is unable to be calibrated the instrument must be serviced The oxygen sensor has a minimal response to certain gases other than oxygen Be aware of these gases and their interference levels See Section 5 Performance Specifications The oxygen sensor is affected by changes in barometric pressure See Section 3 Effects of Pressure for the effects of pressure The sensor is a sealed unit containing a potassium hydroxide electrolyte If the sensor should develop a leak dispose of it immediately as the sensor contains caustic material It must be disposed of in accordance with all applicable federal state and local regulations Should contact occur with skin or clothing rinse area immediately with large quantities of water In case of eye contact immediately flush eyes with water for at least 15 minutes holding eyes open Call a physician Never operate the MiniOX 1A Oxygen Analyzer if itis suspected that water or other liquids have entered into the case If this occurs immediately turn unit OFF and contact your nearest Ohio Medical Corporation Service Center for additional information 7 Use of devices generating or emitting electromagnetic radiation near the MiniOX 1A Oxygen Analyzer may interfere with the proper operation ofthe product causing itto failto perform as designed Particularly the electromagnetic radiation from the interfering device may cause the product to dis
13. ration between 90 100 until the reading stabilizes Calibrate to match this concentration After calibration measure room air the reading should be 20 8 2 A 2 linearity variation is allowed for differences due to the method of sample introduction the accuracy of gas concentration and the precision of initial setting If the variation is greater than 2 repeat the two point linearity check If the variation remains greater than 2 replace the sensor Instrument Operation The MiniOX 1A Oxygen Analyzer has a low battery indicator When the Low Battery indicator is activated LO BAT appears on the top left of the display The instrument functions normally for approximately eight hours however replace the battery as soon as possible If the battery is not replaced the instrument s display will go blank If the sensor becomes disconnected while the instrument is in use the instrument displays between 0 2 and 0 2 The instrument is designed to read in percent from 0 to 100 however if incorrectly calibrated it displays up to 199 To maximize battery life turn OFF the MiniOX 1A Oxygen Analyzer when not in use 3 1 P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Instructions for Use Installation FIGURE 3 1 1 If so equipped remove the humidifier from the oxygen concentrator 2 If the concentrator is equipped with a male DISS fitting thread the female DISS fitting of the MiniOX 1A Ox
14. re 20 to 55 C 4 to 131 F Methoxyflurane lt 2 3 dei Nitrogen lt 0 2 Humidity sien poe HU ION CORSI Nitrous Oxide 0 896 Power Requirements One 9 volt alkaline battery Instrument Replacement Parts Battery Life Approximately 1 400 hours ITEM PART NUMBER Instrument Dimensions 5 11 16 x 2 1 2 x 1 3 4 Case Screw 637408 Instrument Weight 4 x3 8 stainless steel screws 450000 Sensor Type Galvanic fuel sensor 0 100 set of 4 yP O Accessories Sensor Life One year in normal medical ITEM PART NUMBER conditions Alkaline Battery 9 Volt 628817 as shipped a Operating Manual CD 600700 Sensor Shelf Life er Bn Operating Manual printed 806129 of life Oxygen Sensor 806572 FLOW 9096 OF 97 OF MiniOX 1A Oxygen Analyzer 804174 RATE CHANGE CHANGE Oxygen Tubing 637258 Response LITERS Male Universal Nipple Adapt 638064 Time SECONDS SECONDS ale ersal Nipple Adapter Measured 2 22 Carrying Case 710462 25 C Inspection and Servicing SVC 1A1 e 172 2 Cleaning Calibration and Testing SVC 1A2 Enclosure Replacement SVC 1A3 Circuit Board Replacement SVC 1A4 Connector Replacement SVC 1A5 5 1 P N 806129 Rev 1 09 2010 NOTES P N 806129 Rev 1 09 2010 4 2 NOTES P N 806129 Rev 1 09 2010 io Medical Corporation always there for life Ohio Medical Corporation 1111 Lakeside Drive Gurnee IL 60031 USA Phone 1 866 549 6446 Fax 1 847 855 6218 www ohiomedical com
15. the sensor connector into the printed circuit board connector mate labelled J1 Replace the back panel and screws After installing the sensor allow to equilibrate prior to calibration 9 Proceed to Calibration procedures Calibration The most accurate method to calibrate the MiniOX 1A Oxygen Analyzer is with 100 oxygen Calibrating with room air is less desirable but still acceptable assuming the concentration of oxygen in room air is 20 8 1 Press the ON OFF switch on the side panel to turn on the instrument 2 Place the sensor in a flow of air with a known oxygen concentration or in room air 3 Wait for atleast one minute or until the reading has stabilized 4 If the reading on the display is other than the known or assumed oxygen concentration adjust the reading using the calibration dial Turn clockwise to increase the reading or counter clockwise to decrease the reading 5 If the reading cannot be adjusted to the known concentration value the sensor or instrument is malfunctioning and must be serviced NOTE To ensure accurate operation the instrument should be calibrated at the flow rate of intended use Two point Calibration Check The purpose of a two point check is to determine the linearity of the sensor Serious deviation from linearity 2 indicates the sensor is nearing end of life To perform a two point linearity check 1 Place the sensor in a stream of a known oxygen concent
16. to the instrument or other property NOTE Advisory on instrument function WC 2 P N 806129 Rev 1 09 2010 MiniOx 1A Oxygen Analyzer Table of Contents Section 1 INITOAUCHON nennen 1 1 BWARNING een se ee 1 1 Figure 1 1 MiniOX TA Oxygen Analyzer ensure 1 1 Section 2 Principal of Operation ccce 2 1 Section 3 Spi Ma 3 1 Set Up Procedures amp uucsaci ine euet o paoiir du ii EKENS 3 1 calibration eoe Roc eer vr pee re mere ray noma noe rene r ere 3 1 TWO IT Calibration Check nu ee ee is 3 1 o A DRE 3 1 Instructions For 8a ae TIE 3 2 stilo tostada 3 2 spp A ane eee ee ee 3 2 A WARNIN Giessen talca alos 3 2 Figures 3 1 MiniOX 1A Installation sssessseeeenenennn 3 2 Effects of Pressure Humidity and Temperature ocoooocccccononcccnononccccononannncnnnnnncnnnnnnnc cnn nnnnn cnn 3 2 ACAUTION een 3 2 musucFesizct2 ge 3 2 ACAUT ON eC r PH 3 3 Enesis Of AUN said 3 3 Effects of Temperature aa ee 3 3 A A PR A 3 3 A m 3 3 Section 4 Maintenance and Care sese 4 1 Battery Replacement sonia ee 4 1 PP 4 1 A 4 1 A Emm 4 1 E ee ee ee 4 1 Cleaning Disinfection and Sterilization sesseenennnm 4 1 BEAUTION A ee 4 1 MS UNI Po suele i iones a atat n e aera ee eect tieu a Ceci ia
17. ygen Analyzer onto it and proceed to Step 5 3 If the concentrator is equipped with a nipple adapter thread the provided male universal nipple adapter into the female DISS fitting of the MiniOX 1A Oxygen Analyzer and proceed to Step 4 4 Connect the nipple adapter on the MiniOx 1A Oxygern Analyzer to the nipple adapter on the concentrator using the oxygen tubing provided 5 Analyze the oxygen concentration ensuring that the flow rate does not exceed four liters per minute 6 When the oxygen analysis is complete remove the sampling apparatus and reinstall the humidifier if so configured Sensor Operation The oxygen sensor has a minimal response to certain gases other than oxygen Be aware of these gases and their interference levels See Section 5 Interferent Gases and Vapors The sensor is a sealed unit containing a potassium hydroxide electrolyte If the sensor develops a leak dispose of it immediately as sensor contains caustic material it must be disposed of in accordance with all applicable federal state and local regulations Should contact occur with skin or clothing rinse area with large quantities of water In case of eye contact immediately flush eyes with water for at least 15 minutes holding eyes open Call a physician 3 2 Section 3 Operation O Concentrator Barbed fitting if So equipped O Tubing Concentrator Male DISS Fitting DISS male x Barbed Fitting Adapter
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