How Do You Calibrate an Oxygen Sensor?

Sensoronics, Inc. has twenty years’ experience within the healthcare industry and provides FDA and ISO 9001 approved Medical Oxygen Sensors.

11:36 29 March 2021

Oxygen Sensor are used to analyse and monitor the oxygen partial pressure in devices such as analysers, anesthesia machines, ventilators and incubators. Oxygen sensors output in microamps, or through the use of a load resistor, depending on what the chosen instrument requires.

 

The way in which this works is by passing small beams of light through the blood in the finger, measuring changes of light absorption in oxygenated or deoxygenated blood. This painless device can inform the patient of their oxygen saturation levels.

 

Sensoronics provide these products and have many resources chock-a-block with information on how to use their products such as information regarding COPD, Safety Data Sheets for O2 Sensors and multiple Brochures.

 

Ro determine the correct oxygen sensos, obtain the original manufacturer part number, then search or ask a professional for recommendations tailored to the patients’/work needs.

 

Oxygen sensors need to be calibrated in a specific environment. Factors such as temperatures, humidity and the barometric pressure can impact the production of the sensor. It is also widely suggested that your device is inspected annually to ensure that the device outputs accurate results.

 

Oxygen sensors are required to be within the oxygen analyser. These can either be internal or external and typically feature a barb extending from the case where a known oxygen concentration can be administered via tubing and the appliance can be calibrated at 100% O2.

 

Calibrate to 100% O2 in 6 Easy Steps:

 

1. Switch on the analyser once the sensor is connected and place both into a plastic bag.
   
   
   
2. The tubing from the oxygen sensor needs to be placed into the mouth of the bag and taped tightly to prevent any oxygen escaping.
   
   
   
3. Next, poke a number of pinholes into the top of the bag.
   
   
   
4. Then adjust the oxygen flow to the point of inflation and you should feel air flowing from the holes.
   
   
   
5. Check the reading to stabilise and then push the 100% calibrate button. Once calibrated, turn the oxygen off and remove both instruments from the bag.
   
   
   
6. The reading should then drop to 21% and is ready for use.
   
   

An oxygen sensor should last for about 1.4 years if kept in the correct environment. The rate of oxygen consumption may also affect lifespan. Additionally, it is important to know that if a sensor is left unused for longer than 6 months, it may not calibrate correctly once opened.

 

If you’d would prefer to read about this topic in medical terms that potentially makes more sense, you can check out this calibrate oxygen sensor how to guide.