Is humidity interference affecting your PID results?
Mar 06 2019 Read 379 Times
Whether sweltering hot, freezing cold, wet or dry, applications require the same system efficiency to achieve the most reliable and repeatable performance. This means, regardless of environmental conditions sensors must always perform at their optimum best.
Many sensors on the market can be affected by changing environmental conditions e.g., humidity, temperature and dirt. However, measurement accuracy and stability must remain the same. This is critical in applications where the environment is likely to change, such as in industrial and appliance use.
The ION Science MiniPID 2 samples gas via diffusion through a hydrophobic membrane to minimise the amount of humidity and dirt that enters the sensor. Inside, the gas is ionised by deep ultraviolet (UV) light. The resulting ions are detected by the miniPID 2 and the signal is easily reported as a concentration (e.g., ppb, mg/m3).
To ensure there is no contribution to the signal from other sources, e.g., humidity and dirt, the miniPID 2 utilises Fence Electrode Technology (patented) to protect the detector.
Chemicals such as volatile organic compounds (VOCs) with an ionisation energy less than or equal to the UV energy of the PID (10.0, 10.6 or 11.7 eV) will be detected by the MiniPID 2.
All ION Science Sensors include patented Fence Electrode Technology for industry leading humidity resistant performance and anti-contamination design protecting the Sensor from moisture, dust and aerosols.
Please contact Ion Science at ionscience.com for a comprehensive list of response factors for various VOCs and discuss how we can help you find the Sensor variant best suited to your needs.
Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.
In this edition Fuel For Thought - Zeeland Refinery bridges gaps in planning and scheduling with dynamic optimisation software - TASI Group continues expansion with Sierra acquisition - Stu...
View all digital editions
Jul 25 2019 Nairobi, Kenya
Aug 05 2019 Lombard, IL, USA
Aug 25 2019 San Diego, CA, USA
Aug 28 2019 Shanghai, China
Sep 02 2019 Muscat, Oman