Teledyne MX300 manuale d’uso

Portable Oxygen Monitor Teledyne Analytical Instruments i OPERA TING & SER VICE INSTRUCTIONS FOR MX300 P ORTABLE O XYGEN M ONITOR TYPE B EQUIPMENT: Equipment providing a particular degree of protection against electric shock, particularly regarding— • Allowable LEAKAGE CURRENT • Reliability of the protective earth connection (if present).[...]

MX300 Teledyne Analytical Instruments ii Copyright © 2003 Teledyne Analytical Instruments All Rights Reserved No part of t his ma nual may be re produced, t ransmitt ed, transcribe d, stored in a retrieval system, or translated into any other language or computer language in whole or in part, i n any form or by any means, whe ther it be electr oni[...]

Portable Oxygen Monitor Teledyne Analytical Instruments iii About This Manual The MX300 Operator's Manual pr ovides both introductory and detailed information for configuri ng and operating these instruments. The manual takes you from the tim e you unpack the instrument until you complete the first gas analysis. The bulk of the m anual contain[...]

MX300 Teledyne Analytical Instruments iv Safety Messages Your safety and the safety of ot hers are very important. Please carefully read the following safety m essages. Safety message are indented to aler t the user of potential hazards. Each safety message is associated with a safety alert symbol. These symbols are found in the manual and on the i[...]

Portable Oxygen Monitor Teledyne Analytical Instruments v T able of Content s Safety Me ssages .......................................................................... iv List of Fi gures.............................................................................. vii List of Ta bles ..............................................................[...]

MX300 Teledyne Analytical Instruments vi 2.3.1 Humidity 26 2.3.2 Temperature 27 2.3.3 Pressure 27 2.3.4 Discrepancy in Readings 28 2.3.5 Anesthetic Gases 28 2.3.5.1 Gases That Induce Reading Error 28 2.3.5.2 Care After Use in Nitrous Oxide 29 2.3.6 Cleaning 30 2.4 Do’s and Don’ts 31 Service Ma nual ..............................................[...]

Portable Oxygen Monitor Teledyne Analytical Instruments vii List of Figures Figure 1-1: MX300 Front Vi ew......................................................... 9 Figure 2-1: Installing the R17MED Sensor .................................... 16 Figure 2-2: Sensor Cable Connection to Monitor ......................... 17 Figure 2-3: Mounting the Sen[...]

MX300 Teledyne Analytical Instruments viii List of T ables Table 2-1: Oxygen Reading Error in a Mixture of Anesthetic Gas . 29 Table 3-1 Troubl eshooting............................................................. 39 Table 3-2 E rror C odes ................................................................... 42[...]

Portable Oxygen Monitor Introduction Teledyne Analytical Instruments 9 Introduction Teledyne Analytical Instrument s MX300 Oxygen Monitor with alarms here after referred to as MX300 is a portable instrument that provides fast and accurate oxygen monitoring and incorporates an audio/visual alarm capability. These instrum ents are designed to monitor[...]

Introduction MX300 Teledyne Analytical Instruments 10 Options for alternate display config uration). An integral battery life indicator is displayed “o n demand” with the MX300. The instrument is powered by th ree AA alkaline batteries and is designed to operate for 2000 hours in non-alarm state. Oxygen analysis is linear across the single rang[...]

Portable Oxygen Monitor Introduction Teledyne Analytical Instruments 11 1.2 Features The MX300 is a compact, versatile instrument capable of rapidly measuring the oxygen content of an atmosphere or environm ent accurately to ±2% over the ra nge 0-100% oxygen. The following features are standard on the MX300 instruments: • Large easy to read 3 1/[...]

Introduction MX300 Teledyne Analytical Instruments 12 Note: Contact the factory for re trofitting an existing instrument for 3-digit LCD display. For RS-232 reconfiguration, see Section 2.1.5. In addition to the above instru ment configuration options, the following optional equipment is ava ilable for your instrum ent: • Universal Pole Mounting [...]

Portable Oxygen Monitor Introduction Teledyne Analytical Instruments 13 activates the audible and visual alarms if the oxygen level exceeds those values. A unique sensor fail/disconn ect alarm is incorpora ted in the MX300 to warn the user of a sensor problem. The √ SENSOR indicator is illuminated on the LCD and the audible and visual alarms are [...]

Introduction MX300 Teledyne Analytical Instruments 14 alarm set points if appropriat e. Usi ng a microprocessor allo ws for easier setting of alarms, automatic ca libration, and self-diagno sis. The oxygen level is calculated a nd then displayed on the liquid crystal display (LCD) on the front panel. In the MX300 monitor, user-programmed hi gh and [...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 15 Operation Note: Upon receipt, INSPECT THE ENTIRE UNIT FOR DAMAGE. Check the unit and a ll included accessories for broken or loose parts. If damaged, DO NOT USE. Notify the shipper, and consult Teledyne Analytic al Instruments. Note: This equipment is internally powered using 3 AA[...]

Operation MX300 Teledyne Analytical Instruments 16 2.1.1 Sensor Installation or Replacement Note: The R17MED oxygen sensor must be installed before the oxygen analyzer/monitor can be operated Remove the new sensor from its protective bag. Inspect the sensor for damage or electrolyte leakage. If the sensor is damaged, obtain a replacement. Do not us[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 17 Figure 2-2: Sensor Cable Connection to Monitor Note: When the AX/MX300 instrument is used for diffusion sampling (i.e., incubators, tent s, etc.), the plastic flow diverter must be removed from the R17MED sensor. If the sensor is used in breathing circ uits, etc, the diverter must[...]

Operation MX300 Teledyne Analytical Instruments 18 2.1.2 Mounting The MX300 can be mounted in several ways depending on the optional equipment ordered at the time of purchase. See Section 1.3. 2.1.2. 1 V-M OUNT A DAPTER I NSTALLATION The V-Mount Adapter consists of a matching plastic plate with integral V-grooves that attach to the rear of the inst[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 19 2.1.3 Battery Installation Note: Three “AA” alkaline batteries must be installed in the unit before the monito r will operate. The unit must be recalibrated whenever new batteries are installed and the HI and LOW alarm set poi nts must be reset to the desired values To install[...]

Operation MX300 Teledyne Analytical Instruments 20 4. Re-install the battery compar tment door. W hen the unit is first turned on the display will m omentarily display all LCD segments. During this period diagnostic tests are being conducted to insure the circu its are functioning correctly. The unit will activate the audibl e and visual alarms for[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 21 3. If the LCD is not flashing, press the LOCK/UNLOCK key to unlock the keys. LCD will flas h indicating changes can be made to the settings. If the batt eries have just been installed the LCD will flash 00.0 4. As with most oxygen analyzer (s) the highest level of accuracy is achi[...]

Operation MX300 Teledyne Analytical Instruments 22 Figure 2-8: Setting the Alarms calibration. Air calibration should only be used for monitoring oxygen leve ls between 21% and 40% and should never be used where a high degree of accuracy is needed. Note: Never calibrate the unit in humidified gas, as water vapor makes the oxygen concentration appea[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 23 you to select a LO alar m value less than 18%. Note: The MX300 Portable Oxygen Monitor is designed to prevent crossing of HI/LO alarm settings. If you attempt to set the LO alarm higher than the HI alar m, it will push the HI alarm setting up as you continue to ri se the LO alarm [...]

Operation MX300 Teledyne Analytical Instruments 24 Figure 2-9: 0-1 VDC or RS 232 Digital Output Port If your instrument is set fo r analog (0-1 VDC) output, you can reconfigure it to use the digital output by changing a jumper on the internal PC board. To activate the digital output: 1. Remove the batteries and remove the five screws that hold the [...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 25 2.2 Use 2.2.1 Procedure Note: Prior to use, always test the batteries and alarms (if applicable). Also check calibration, the sensor for leaks and damage, and the alarm settings. The AX/MX300 instruments can be used to measure a gas m ixture for oxygen in two basic modes: • In t[...]

Operation MX300 Teledyne Analytical Instruments 26 R17MED sensor so that it does not in terfere with the rapid exchange of gases to and from the sensing surface of the sensor. CAUTION: FAILURE TO REMOVE THE DIVERTER IN T HESE APPLICATION AREAS WILL RESU LT IN A MARKED LOWERING OF THE RESPONSE TIME OF THE SENSOR. The R17MED sensor can be placed or h[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 27 2.3.2 T emperature The R17MED oxygen sensor adjusts for ambient temperature changes in the range of 0–40°C (32–106° F). Since the thermistor that compensates for these changes is lo cated in the rear of the sensor assembly, it is important that gas m ixtures, flowing over th[...]

Operation MX300 Teledyne Analytical Instruments 28 2.3.4 Discrepancy in Readings The MX300 instrument should be used to measure the oxygen concentration exiting another oxygen mixing device or life support system (i.e., a blender, incubato r or anesthes ia machine). The information obtained from the MX300 s hould never be used to adjust a life-supp[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 29 Table 2-1: Oxygen Reading Error in a Mixture of Anesthetic Gas Gas or Vapor Level (Balance: Mixture of 30% O 2 / 70% N 2 O, except where noted) Gas or Vapor Test Level Oxygen Reading Error Helium 50%, balance O 2 0% Nitrous Oxide 80%, balance O 2 0% Carbon Dioxide 10%, balance O 2[...]

Operation MX300 Teledyne Analytical Instruments 30 After exposure to nitrous oxide mixt ures, the sensor should be left in 100% oxygen overnight (e.g., left in a breathing circu it that has been flushed with pure oxygen). If this is not practical, when using the Tee, remove the plastic flow diverter and l eave the sensor in room air. If the oxygen [...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 31 manufacturer’s in structions). Due to the varying conditions imposed on the materi als during sterilization it is not possible to determine the exact number of tim es the sterilization processes can be carried out. Therefore, Teledyne recommends that the operators carefully exam[...]

Operation MX300 Teledyne Analytical Instruments 32 • Recalibrate after replacing the senso r. • Use properly installed alkaline batteries only. • Make sure the R17MED sens or is properly attached. • Remove the plastic flow divert er only when using the tee adapter. • Remove and save the plastic flow diverter when using the sensor in non-f[...]

Portable Oxygen Monitor Operation Teledyne Analytical Instruments 33 • Expose the LCD to excessive sunlight. • Expose the unit to a condensing water environment such as a mist tent.[...]

Operation MX300 Teledyne Analytical Instruments 34 Blank[...]

Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 35 Service Manual 3.1 General Service Information The Teledyne Model MX300 Portable Oxygen Monitor is designed to be robust yet compact in si ze. In or der to ac hieve maxi mum re liab ility in a microprocessor-based instrument, a single PC bo ard is used which relies exclusivel[...]

Service Manual MX300 Teledyne Analytical Instruments 36 The MX300 instrument incorporates a battery test feature that provides the approximate amount of useful life rem aining on the set of batteries. Excessive alarm activation will wear down the battery faster than usual. The minimum detectable change in battery voltage corresponds to an increment[...]

Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 37 3.6 Alarms To set the alarms on the MX300 mo nitor, refer to Section 2.1.4. 3.7 Gas Sampling 3.7.1 Humidity Humidity does not directly affect the accuracy of the sensor's measurement. However, when a nebulizer or other device is used to increase moisture levels in gas m [...]

Service Manual MX300 Teledyne Analytical Instruments 38 3.7.3 Pressure Virtually all gas sensors and monito rs m easure the partial pressure, not the percentage, of the gas that they sense. The only time that these instruments can accurately read percen tages is when the total pressure does not vary over time between calibrations and use. For this [...]

Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 39 Note: The MSDS on this material is located in the Appendix. It is also available upon request through the Teledyne Environmental, Health and Safety Coordinator. Contact at (626) 934-1592 3.8 T roubleshooting The MX300 oxygen monitor provides a variety of built-in safety featu[...]

Service Manual MX300 Teledyne Analytical Instruments 40 Symptom Why What To Do The sensor does not react to changes in oxygen concentration, or the readings are unstable and drifting. Water is condensing on the sensing surface. Electrical interference is disrupting the electronics A ) Remove the sensor from tee adapter and unscrew the plastic flow [...]

Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 41 Symptom Why What To Do The unit has stopped working and the LCD is displaying alphanumeric figures. The MX300 instruments are equipped with an electronic "watch dog," which monitors the circuitry within the unit for potential faults and renders the unit inoperable u[...]

Service Manual MX300 Teledyne Analytical Instruments 42 3.9 W atchdog The MX300 is equipped with a wa tchdog circuit th at continuously monitors the electronics for proper operation. If the watchdog detects a failure, one of the following c odes will appear on the LCD. The error codes can appear on the LCD when batteries are firs t installed, durin[...]

Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 43 5 - Silence 6 - High Alarm 7 - Alarm Test 8 - Key Lock 7(2) 7 (There is no indication of the type of DAC failure) A failure has occurred during the automatic calibration of the digital to analog converter (DAC) circuit. The second digit example (2) shows the type of digital t[...]

Service Manual MX300 Teledyne Analytical Instruments 44 3.1 1 Return Authorization for Service For any service beyond sensor and battery replacement, the instrument must be returned to the factory. A return merchandise authorization (RMA) number must be obtained from Teledyne Analytical Instruments prior to re turn ing an instrument for service. Yo[...]

Portable Oxygen Monitor Appendix Teledyne Analytical Instruments 45 Appendix A.1 S pecifications Range: 0-100% oxygen Accuracy: + 2% of full scale (at constant temperature and pressure) Response Time: 90% in less than 8 seconds at 25 °C Battery Life: Approximately 2000 hr. continuous use in a non-alarm condition System Power: 3 AA alkaline batteri[...]

Appendix MX300 Teledyne Analytical Instruments 46 A.2 S p are Parts L ist QTY PART NO DESCRIPTION 1 C43690-R17MED Micro-Fuel Cell R17MED with flow diverter P/N A50057 3 B99 “AA” size alkaline battery 1 B69934 Cable assembly 1 A268 Tee adapter (22 mm) 1 B-74543 Front panel assem bly 1 D-74459 Back panel 1 C-74461 Battery door 1 B-74462 Battery d[...]

Portable Oxygen Monitor Appendix Teledyne Analytical Instruments 47 Note: Orders for replacement parts should include the part number (if available) and t he model and serial num ber of the instrument for which the parts are intended. Orders should be sent to: TELEDYNE Analytical Instruments 16830 Chestnut Street City of Industry, CA 91749-1580 Pho[...]

Appendix MX300 Teledyne Analytical Instruments 48 BLANK[...]

Portable Oxygen Monitor index Teledyne Analytical Instruments 49 Index accessories, 46 accuracy, 45 address, 44, 47 alarm setpoints, 2 2 alarm setpoints, 22 alarm setpoint s, 10, 14 alarm settings crossover of, 23 ALARM SILENCE button, 10, 14, 15 ALARM TEST button , 23, 32 amplification, 1 3 analog output , 23 analysis range, 10, 45 anesthetic gas,[...]

Index MX300 Teledyne Analytical Instruments 50 sensor, 10, 12 sensor cable, 45 sensor failu re alarm, 10 sensor life , 45 sensor mai ntenance, 36 sensor mount ing, 17 set up, 15 setpoints. See alarm setpoints signal output , 23 signal processing, 13 signal processor, 1 2 spare parts listing, 46 specifications, 45 stand, 14 standards, 10 sterilizing[...]