1.4 Applications
The AX300-I analyzers is intended for spot checking concentration of oxygen in a gas mixtures used in medical applications such as Anesthesia, Respiratory therapy and is intended for adult, pediatric and Neonatal populations.
These instruments may be used in verifying oxygen concentrations in gas mixtures used in:
•Anesthesia
•Respiratory Therapy
•Neonatal Care
1.5Theory of Operation
The AX300-I analyzer can be divided into two major functional groups:
•R17MED Oxygen Sensor
•Signal Processing
The analyzer uses Teledyne Analytical Instruments Patented R17MED oxygen sensor. The millovolt output signal from the sensor is fed into the electronic signal processor, where it is used to calculate the oxygen gas concentration and display it on the LCD screen. There is no concentration alarm in the AX300-I analyzer however a unique sensor fail/disconnect alarm is incorporated to warn the user of a sensor problem. The√ SENSOR indicator is illuminated on the LCD and the audible and visual alarms are activated whenever a fault is detected.
1.5.1 Sensor
The AX300-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
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