High-Speed Sensors Improve CO2 Response Time for Incubators Gas Sensing Solutions Ltd. Page | 1 For regular updates, sign up at https://gassensing.co.uk Revision 2.0, 9 October 2020 Copyright © 2021 Gas Sensing Solutions Ltd.

Gas Sensing Solutions Ltd. Page | 2 For regular updates, sign up at https://gassensing.co.uk Revision 2.0, 9 October 2020 Copyright © 2021 Gas Sensing Solutions Ltd.

WHITE PAPER INTRODUCTION CO2 incubators are designed to mimic a cell’s natural environment and ensure conditions are constant. Although there are different types of incubator, most are designed to control CO2, relative humidity, temperature and pH at constant levels. New high-speed CO2 sensors are now available that allow designers to respond and manage gas levels with unprecedented fidelity. WHAT IS AN INCUBATOR? Micro-organism incubators are essentially ovens that are temperature-controlled, to work within a strict biological range and are mainly used for cultivating and storing microbial culture....

WHITE PAPER WHY CO2 NEEDS TO BE MEASURED? Cultures grown within incubators require very specific environmental conditions. Typically, incubators allow the user to monitor and adjust different factors such as temperature, relative humidity and carbon dioxide levels to control pH of growth medium to ensure optimal growing or storage conditions are maintained. Cell growth is managed by controlling the pH value, which is typically in the range from 7.0 to 7.7. Chemical reactions within the medium can alter the pH. In order to counter these reactions, levels of CO₂ are controlled, helping to maintain...

WHITE PAPER INTRODUCING THE SPRINTIR-6S AND EXPLORIR-W The SprintIR-6S and ExplorIR-W series of sensors are a range of high accuracy carbon dioxide (CO2) sensors designed to meet the needs of customers who require fast measurement of CO2 levels. The sensors are designed to take a reading 20 times a second for the SprintIR-6S and 2 times a second for the ExplorIR-W. The optical cavity has been designed along with a flow port adaptor to enable gas to flow through the sensor at high speed, enabling the user to make use of the very high measurement rate capability. The flow port adaptor has been...

WHITE PAPER In most applications, with a measurement rate of up to 20Hz, the ability of the sensor to provide real-time readings will be limited by the flow rate through the sensor. The most important factor is the gas exchange rate. This is the amount of time it takes for the gas to enter the CO2 measurement chamber, get measured and then replaced. The sensor has a gas measurement chamber volume of approximately 2.8ml. As a rule, to properly exchange the gas in the chamber, there needs to be a x5 volume of gas passed through the sensor. Therefore, approximately 14ml of gas needs to flow through...

WHITE PAPER CONCLUSION The SprintIR-6S and ExplorIR-W CO₂ sensors from GSS have been specifically designed to address applications where high measurement rate, responsiveness and long-term accuracy are paramount. Suitable for CO2 incubators and a variety of other life science applications, they come with several options that allow the sensor to be optimised for the installation. To learn more about how the SprintIR-6S or ExplorIR-W, visit our website https://www.gassensing.co.uk/products/ Gas Sensing Solutions Ltd. Page | 7 For regular updates, sign up at https://gassensing.co.uk Revision 2.0,...

WHITE PAPER IMPORTANT NOTICE Gas Sensing Solutions Ltd. (GSS) products and services are sold subject to GSS’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. GSS warrants performance of its products to the specifications in effect at the date of shipment. GSS reserves the right to make changes to its products and specifications or to discontinue any product or service without notice. Customers should therefore obtain the latest version of relevant information from GSS to verify that the information is current. Testing and other quality control...