Teledyne MX300-I manual Sensor, Signal Processing

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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 electronics where it is converted into a digital signal and displayed on the LCD Screen.

Attached to the R17MED sensor is a removable plastic diverter. This diverter is used to facilitate the transport of gas mixtures through the sensor. The diverter, packaged separately when shipped, is necessary when the tee adapter is used to sample gas flowing through a tube.

The diverter is not necessary and should not be used when the sensor is placed directly in a chamber, or when the sensor is used in confined volume monitoring, such as incubators and inhalation tents.

CAUTION: THE R17MED SENSOR CONTIANS A CAUSTIC ELECTROLYTE AND LEAD. DO NOT TRY TO OPEN THE SENSOR ASSEMBLY. CHECK THE SENSOR REGULARLY FOR LEAKS. IF THE SENSOR IS LEAKING, REPLACE IT. DO NOT TRY TO REPAIR IT. CONTACT TELEDYNE FOR THE MATERIAL SAFETY DATA SHEET RELATED TO HANDLING AND DISPOSAL.

CAUTION: REMOVE AND SAVE THE DIVERTER WHEN THE SENSOR IS USED IN CONFINED VOLUME APPLICATIONS.

1.5.2 Signal Processing

The electrical voltage developed in the sensor is sent to the electronics. Processing includes amplification, conversion to digits, and comparison to alarm set points if appropriate. Using a microprocessor allows for easier setting of alarms, automatic calibration, and self-diagnosis.

Teledyne Analytical Instruments

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Contents MX300-I MX300-I About This Manual How To Use This ManualSafety Messages Table of Contents Appendix MX300-I Front View List of FiguresList of Tables MX300-I Front View IntroductionIntroduction MX300-I Applicable StandardsOptions FeaturesTheory of Operation ApplicationsSensor Signal ProcessingIntroduction MX300-I Operation SetupInstalling the R17MED Sensor Sensor Installation or ReplacementSensor Cable Connection to Monitor Mounting V-Mount Adapter InstallationInstalling Batteries Battery InstallationCalibration Sequence CalibrationPortable Oxygen Monitor Operation Setting the Alarms AlarmsOutput 0-1 VDC or RS232 0-1 VDC or RS 232 Digital Output Port Use ProcedureHumidity Gas SamplingPressure TemperatureAnesthetic Gases Discrepancy in ReadingsOxygen Reading Error in a Mixture of Anesthetic Gas Do’s and Don’ts CleaningPortable Oxygen Monitor Operation Operation MX300-I Overall Maintenance General Service InformationBattery Maintenance Calibration Sensor MaintenanceAlarms Pressure Troubleshooting Troubleshooting√ Sensor Ventilate the patient, water Watchdog Error CodesOther Problems with the Instrument Return Authorization for Service Appendix SpecificationsOptional Accessories Spare Parts ListOrders should be sent to Blank Crossover IndexIndex MX300-I
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