BENEFITS OF NDIR OVER TC CO2 SENSORS INSIDE HIGH HUMIDITY CO2 INCUBATORS Customer: XiltriX International Company: XiltriX International Industry: IVF, ART & Cell culture labs Buyer Persona: N/A Video: N/A Customer: XiltriX International Inside cell culture laboratories CO2 incubators are one of the most important tools to grow living cells. These cells can vary from simple cell lines to human embryos grown for IVF purposes. The incubators mimic the human body as closely as possible to make sure the cells feel comfortable and grow and multiply successfully. Alongside a stable temperature, pH level is very important to make cells grow well. CO2 sensors in combination with CO2 gas are used to get the pH value to a correct level. This means it is very important to make sure the CO2 reading inside incubators is as accurate as possible. Author: Han Weerdesteyn Due Date: 10 January 2022 Publish Date: 10 January 2022 CO2 sensor technology has evolved tremendously. Laboratory staffwho have witnessed this evolution can still remember the difficulty of measuring CO2 by manually using a chemical based Fyrite meter. When used correctly an accuracy of roughly ± 0.5% could be achieved. One of the first measuring principles to supersede the Fyrite meter was the widely used TC (Thermal Conductivity) CO2 sensor. This sensor used the electrical resistance through the air to measure how much CO2 was present inside the incubators. When it detected too little CO2, it would let in more The CO2 incubator as a black box XiltriX International has been installing Temperature & CO2 monitoring systems inside incubators for more than 30 years. Over time a lot has changed, especially gas. When all parameters in the incubators were correct, the accuracy of the CO2 sensor was acceptable, but it had one fatal flaw; it was terribly susceptible to changes in humidity.

XiltriX | Benefits of NDIR over TC CO2 sensors monitoring inside high humidity CO2 incubators The next evolution of the CO2 sensor was the very accurate. One of our customers contacted us NDIR (Non Dispersive Infrared) CO2 sensor. After with a question. They mentioned the XiltriX sensor development the NDIR sensor had one downside was consistently measuring 3% lower than the 5.5% to the TC sensor, it was a lot more expensive. It also display value on their CO2 incubator. The customer suffered from drift. After many years of development told us the incubator had not been opened for several though...

This fleeting comment triggered alarm bells in our than was normal for this device. Looking at the graph tech team. Our engineers started inquiring about though you can see that it takes multiple hours for the CO2 sensor and found out it was of the TC type. the CO2 values to return to their normal setpoint, This is not always clearly marked on the outside of because the evaporation of the humidity is so slow. the incubator and sometimes one type of incubator is Needless to say, without an NDIR CO2 sensor as an supplied with multiple types of sensors. The customer independent monitoring device,...

When only monitoring the onboard controller and will reduce risks on average, but serious damage is sensors, in other words the (small) computer that very likely. A critical incident would lead to reputation operates the say freezer or incubator, one is led to damage and the very real risk of a liability case. believe monitoring is in place, but If the controller or Not mentioning direct losses in labor, investments circuitry itself fails, no alarm will be sounded. There is and Science. On top of that, precious time will be lost no independent referee in place nor in control. in Science because...