Page 2 - ii; Copyright © 2002 Teledyne Analytical Instruments; FCC Statement; Warranty
MX300-I Teledyne Analytical Instruments ii Copyright © 2002 Teledyne Analytical Instruments All Rights Reserved No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any for...
Page 3 - About This Manual; How To Use This Manual
Portable Oxygen Monitor Teledyne Analytical Instruments iii About This Manual The MX300-I Operator's Manual provides both introductory and detailed information for configuring and operating these instruments. The manual takes you from the time you unpack the instrument until you complete the first g...
Page 4 - Safety Messages; CAUTION
MX300-I Teledyne Analytical Instruments iv Safety Messages Your safety and the safety of others are very important. Please carefully read the following safety messages. Safety message are indented to alert the user of potential hazards. Each safety message is associated with a safety alert symbol. T...
Page 5 - Table of Contents; Applicable Standards
Portable Oxygen Monitor Teledyne Analytical Instruments v Table of Contents Safety Messages .......................................................................... iv List of Figures................................................................................ v List of Figures....................
Page 7 - vii; List of Figures
Portable Oxygen Monitor Teledyne Analytical Instruments vii List of Figures Figure 1-1: MX300-I Front View ...................................................... 9 Figure 2-1: Installing the R17MED Sensor .................................... 16 Figure 2-2: Sensor Cable Connection to Monitor ...........
Page 8 - viii; List of Tables; Table 2-1: Oxygen Reading Error in a Mixture of Anesthetic Gas . 29
MX300-I Teledyne Analytical Instruments viii List of Tables Table 2-1: Oxygen Reading Error in a Mixture of Anesthetic Gas . 29 Table 3-1 Troubleshooting ............................................................ 37 Table 3-2 Error Codes................................................................
Page 9 - Introduction; Teledyne Analytical Instruments MX300-I Oxygen Monitor with
Portable Oxygen Monitor Introduction Teledyne Analytical Instruments 9 Introduction Teledyne Analytical Instruments MX300-I Oxygen Monitor with alarms here after referred to as MX300-I is a portable instrument that provides fast and accurate oxygen monitoring and incorporates an audio/visual alarm c...
Page 12 - Theory of Operation
Introduction MX300-I Teledyne Analytical Instruments 12 Section 2.1.5. In addition to the above instrument configuration options, the following optional equipment is available for your instrument: • Universal Pole Mounting Clamp (P/N CP 2343) • V-Mount Pole Clamp (P/N CP 2344) • V-Mount Wall Adapter...
Page 13 - The MX300-I uses the Teledyne Class R17MED disposable oxygen
Portable Oxygen Monitor Introduction Teledyne Analytical Instruments 13 is illuminated on the LCD and the audible and visual alarms are activated whenever a fault is detected. 1.5.1 Sensor The MX300-I uses the Teledyne Class R17MED disposable oxygen sensor. The sensor is made up of a sensing cathode...
Page 14 - The oxygen level is calculated and then displayed on the liquid
Introduction MX300-I Teledyne Analytical Instruments 14 The oxygen level is calculated and then displayed on the liquid crystal display (LCD) on the front panel. In the MX300-I monitor, user-programmed high and low alarm set points are stored in random access memory (RAM), which resides within the m...
Page 15 - Operation; Note: Upon receipt, INSPECT THE ENTIRE UNIT FOR
Portable Oxygen Monitor Operation Teledyne Analytical Instruments 15 Operation Note: Upon receipt, INSPECT THE ENTIRE UNIT FOR DAMAGE. Check the unit and all included accessories for broken or loose parts. If damaged, DO NOT USE. Notify the shipper, and consult Teledyne Analytical Instruments. Note:...
Page 16 - Sensor Installation or Replacement; Note: The R17MED oxygen sensor must be installed before the
Operation MX300-I 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 1. Remove the new sensor from its protective bag. Inspect the sensor for damage or electrolyte leakage. If...
Page 17 - Figure 2-2: Sensor Cable Connection to Monitor
Portable Oxygen Monitor Operation Teledyne Analytical Instruments 17 Figure 2-2: Sensor Cable Connection to Monitor Note: When the MX300-I instrument is used for diffusion sampling (i.e., incubators, tents, etc.), the plastic flow diverter must be removed from the R17MED sensor. If the sensor is use...
Page 18 - Note: The door latch is a tight fit onto the battery cover. Use a; Figure 2-5: Brass Insert for Universal Mounting Clamp
Operation MX300-I Teledyne Analytical Instruments 18 2.1.2 Mounting The MX300-I 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 i...
Page 19 - Note: Three “AA” alkaline batteries must be installed in the unit
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 monitor will operate. The unit must be recalibrated whenever new batteries are installed and the HI and LOW alarm set points mu...
Page 20 - Note: When batteries are first installed or power is lost for any
Operation MX300-I Teledyne Analytical Instruments 20 4. Re-install the battery compartment door. When the unit is first turned on the display will momentarily display all LCD segments. During this period diagnostic tests are being conducted to insure the circuits are functioning correctly. The unit ...
Page 21 - available from Teledyne for use with the R17MED sensor
Portable Oxygen Monitor Operation Teledyne Analytical Instruments 21 made to the settings. If the batteries have just been installed the LCD will flash 00.0 4. As with most oxygen analyzer(s) the highest level of accuracy is achieved when calibration is conducted using 100% oxygen. After installing ...
Page 22 - Note: Never calibrate the unit in humidified gas, as water vapor
Operation MX300-I Teledyne Analytical Instruments 22 Figure 2-8: Setting the Alarms 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 appear lower than it really is. See Appendix: Humidity. ...
Page 23 - Note: When the alarm is in the OFF condition (set point above
Portable Oxygen Monitor Operation Teledyne Analytical Instruments 23 designed to prevent crossing of HI/LO alarm settings. If you attempt to set the LO alarm higher than the HI alarm, it will push the HI alarm setting up as you continue to rise the LO alarm set point. This also applies when attempti...
Page 24 - To activate the digital output:
Operation MX300-I Teledyne Analytical Instruments 24 Figure 2-9: 0-1 VDC or RS 232 Digital Output Port If your instrument is set for 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 ...
Page 25 - Note: Prior to use, always test the batteries and alarms (if
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-I instruments can be used to measure a ...
Page 27 - The R17MED oxygen sensor adjusts for ambient temperature
Portable Oxygen Monitor Operation Teledyne Analytical Instruments 27 2.3.2 Temperature 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 located in the rear of the sensor assembly, it is impo...
Page 28 - The MX300-I instrument should be used to measure the oxygen; When using the R17MED sensor in the presence of anesthetic gases
Operation MX300-I Teledyne Analytical Instruments 28 2.3.4 Discrepancy in Readings The MX300-I instrument should be used to measure the oxygen concentration exiting another oxygen mixing device or life support system (i.e., a blender, incubator or anesthesia machine). The information obtained from t...
Page 29 - Table 2-1: Oxygen Reading Error in a Mixture of Anesthetic Gas; Gas or Vapor Level; * Errors are approximate and may vary based on exposure times and
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 8...
Page 30 - Do’s and Don’ts
Operation MX300-I Teledyne Analytical Instruments 30 After exposure to nitrous oxide mixtures, the sensor should be left in 100% oxygen overnight (e.g., left in a breathing circuit that has been flushed with pure oxygen). If this is not practical, when using the Tee, remove the plastic flow diverter...
Page 32 - Place the unit itself in a water vapor-saturated environment.
Operation MX300-I Teledyne Analytical Instruments 32 • Use cleaning agents or liquids in the cable receptacles or around the battery compartment. • Place the unit itself in a water vapor-saturated environment. • Expose the LCD to excessive sunlight. • Expose the unit to a condensing water environmen...
Page 33 - Service Manual; General Service Information; The Teledyne Model MX300-I Portable Oxygen Monitor is; Overall Maintenance; The MX300-I requires very little maintenance, other than; Battery Maintenance; Test batteries regularly. (replace immediately when all 5 bars
Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 33 Service Manual 3.1 General Service Information The Teledyne Model MX300-I Portable Oxygen Monitor is designed to be robust yet compact in size. In order to achieve maximum reliability in a microprocessor-based instrument, a si...
Page 34 - Sensor Maintenance; DON’T
Service Manual MX300-I Teledyne Analytical Instruments 34 DO: Recalibrate after replacing batteries. The MX300-I instrument incorporates a battery test feature that provides the approximate amount of useful life remaining on the set of batteries. Excessive alarm activation will wear down the battery...
Page 36 - The reading will rise proportionally less for smaller pressures.
Service Manual MX300-I Teledyne Analytical Instruments 36 during this period since this error will be eliminated when both the thermistor and sensing electrode have had sufficient time to come to thermal equilibrium. This can take up to 2 hours. 3.7.3 Pressure Virtually all gas sensors and monitors ...
Page 37 - Note: The MSDS on this material is located in the Appendix. It is; Symptom
Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 37 investigation should be made until the discrepancy in readings is resolved. The troubleshooting section of this manual may provide additional assistance in locating the problem. Note: The MSDS on this material is located in th...
Page 40 - Note: In the event that none of these procedures produce desired
Service Manual MX300-I Teledyne Analytical Instruments 40 Symptom Why What To Do Cannot adjust calibration or alarm settings Critical settings require two keys be pressed in a specific order. LOCK/UNLOCK key is active A) If display is not flashing press lock key once to activate keys. Press desired ...
Page 41 - Other Problems with the Instrument; Most other problems arise from either mechanical damage from the
Portable Oxygen Monitor Service Manual Teledyne Analytical Instruments 41 50 5 The ADC circuit failed during POST. 6 (5) 6 (There is no indication of which key is stuck) A stuck key has been detected. The second digit example (5) on the display shows which key is stuck: 0 - Low Alarm 1 - Batt 2 - Ca...
Page 42 - Return Authorization for Service; For any service beyond sensor and battery replacement, the; TELEDYNE Analytical Instruments
Service Manual MX300-I Teledyne Analytical Instruments 42 non-abrasive cleaner solution to periodically clean the keypad and screen. An aerosol jet spray of the type commonly used to clean computer keyboards can be used to dislodge dirt and accumulations from the keypad. The Error Code Table (Table ...
Page 43 - Appendix; 0% in less than 8 seconds at 25 °C
Portable Oxygen Monitor Appendix Teledyne Analytical Instruments 43 Appendix A.1 Specifications 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-alar...
Page 44 - A.2 Spare Parts List; QTY PART; A.3 Optional Accessories
Appendix MX300-I Teledyne Analytical Instruments 44 A.2 Spare Parts List 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 assembly 1 D-74459 Back pane...
Page 45 - Note: Orders for replacement parts should include the part
Portable Oxygen Monitor Appendix Teledyne Analytical Instruments 45 Note: Orders for replacement parts should include the part number (if available) and the model and serial number of the instrument for which the parts are intended. Orders should be sent to: TELEDYNE Analytical Instruments 16830 Che...
Page 47 - Index
Portable Oxygen Monitor Index Teledyne Analytical Instruments 47 Index accessories, 44 accuracy, 43 address, 42, 45 alarm setpoints, 22 alarm setpoints, 22 alarm setpoints, 10, 14 alarm settings crossover of , 23 ALARM SILENCE button, 10, 14, 15 ALARM TEST button, 23, 31 amplification, 13 analog out...
