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Portable Oxygen Monitor
OPERATING & SERVICE INSTRUCTIONS FOR
MX300-I
PORTABLE OXYGEN MONITOR
P/N M75707
REV 1
ECO # 04-0088
0086
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).
Teledyne Analytical Instruments i
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MX300-I 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 form or by any means, whether it be electronic, mechanical, optical, manual, or otherwise, without prior written consent of Teledyne Instruments, Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91749-1580 FC
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Portable Oxygen Monitor 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 gas analysis. The bulk of the manual contains operating procedures and information. There are also cautions, warnings, and guidelines to ensure that your monitor operates normally and to its full potential. A troubleshooti
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MX300-I 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. These symbols are found in the manual and on the instrument. The definition of these symbols is described below: CAUTION: Refer to the instructions for details on the specific danger. These caution symbols warn of specific
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Portable Oxygen Monitor Table of Contents Safety Messages ..........................................................................iv List of Figures................................................................................v List of Figures..............................................................................vii List of Tables ..............................................................................viii Introduction .................................................
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MX300-I 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 30 Service Manual ............................................................................ 33 3.1 General Service Information 33 3.2 Overall Maintenance 33 3.3 Battery Maintenance 33 3.4 Sensor Maintenance 34 3.5 Calibration 34
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Portable Oxygen Monitor 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 .........................17 Figure 2-3: Mounting the Sensor in the Tee Adapter.....................17 Figure 2-4: V-Mount Adapter Installation.......................................18 Figure 2-5: Brass Insert for Universal Mounting C
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MX300-I 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................................................................... 40 Teledyne Analytical Instruments viii
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Portable Oxygen Monitor Introduction 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 capability. These instruments are designed to monitor up to 100% oxygen concentration in medical gas mixtures. Because they are microprocessor-based, the MX300-I instruments have a unique combination of features that make t
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Introduction MX300-I Options for alternate display configuration). An integral battery life indicator is displayed “on demand” with the MX300-I. The instrument is powered by three AA alkaline batteries and is designed to operate for 2000 hours in non-alarm state. Oxygen analysis is linear across the single range of 0-100% using Teledyne’s class R17MED oxygen sensor. A unique sensor failure alarm is incorporated which warns the user if the sensor signal is lost or low. When this occu
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Portable Oxygen Monitor Introduction 1.2 Features The MX300-I is a compact, versatile instrument capable of rapidly measuring the oxygen content of an atmosphere or environment accurately to ±2% over the range 0-100% oxygen. The following features are standard on the MX300-I instruments: • Large easy to read 3 1/2 digit LCD display (see options) • Automatic LCD back lighting upon key press • Microprocessor controlled • Up/Down front panel controls • Sensor fail/disconnect alarm in
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Introduction MX300-I 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 P/N B 647) • 0-1 VDC Interface Cable (P/NB-75554) • RS 232 Interface Cable (P/N B-75555) 1.4 Applications The MX300-I Portable oxygen analyzer is intended to continuously measure and display the concentration of oxygen in
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Portable Oxygen Monitor Introduction 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 and anode (fuel) immersed in electrolyte and packaged in a small plastic container. Oxygen entering the sensor reacts with the anode and a proportional current is collected at the sensing cathode, which is sent to the e
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Introduction MX300-I 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 microprocessor. The oxygen level calculated by the microprocessor is compared to these set points, and an alarm activated, if necessary. The audio alarm is used for both the concentration alarms and the sensor disconnects al
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Portable Oxygen Monitor Operation 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: This equipment is internally powered using 3 AA batteries. CAUTION: THE MX300-I, OXYGEN SENSOR AND ASSOCIATED HARDWARE ARE NON-STERILE DEVICES. DO NOT AUTOCLAVE THE INSTRUMENT OR SENSOR, AS THIS WILL DAMAGE THE EQUIPM
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Operation MX300-I 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 the sensor is damaged, obtain a replacement. Do not use the defective sensor as it may damage the unit. WARNING: THE SENSOR ELECTROLYTE IS CAUSTIC. DO NOT LET IT COME IN CONTACT WITH SKIN. IF IT DOES, FLUSH AFFECTED AR
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Portable Oxygen Monitor Operation 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 used in breathing circuits, etc, the diverter must be used as shown in Figure 2-3. Figure 2-3: Mounting the Sensor in the Tee Adapter Teledyne Analytical Instruments 17
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Operation MX300-I 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-MOUNT ADAPTER INSTALLATION The V-Mount Adapter consists of a matching plastic plate with integral V-grooves that attach to the rear of the instrument. To install V-Mount Adapter remove battery compartment door by prying up the hinged latch at the bottom of the cover, then slide the adapter plate into grooves pr
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Portable Oxygen Monitor Operation 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 must be reset to the desired values To install the batteries: 1. Turn the unit off (if it is on). 2. Hold the instrument face down in the palm of your hand. Use a coin to pry up the latch that secures the battery compartme
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Operation MX300-I 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 will activate the audible and visual alarms for about 1 second. The LCD will flash continuously indicating the unit is in the unlocked position ready for calibration. Note: When batteries are first installed or power is los
