NDIR-A PNDIR-A PNDIR-A PNDIR-A PNDIR-A Perferferferferformance Daormance Daormance Daormance Daormance Datatatatata

IRC-A1IRC-A1IRC-A1IRC-A1IAQSafetyCombustionProcess control

Range 0 to 2000 ppm0 to 5 % vol0 to 20 % vol0-100 % vol Resolution 2.5 ppm50 ppm250 ppm0.2 % vol Accuracy (20 °C) ± 10 ppm± 0.5 % FS± 1.5 % FS± 3 % FS Zero Repeatability ± 10 ppm± 50 ppm± 200ppm± 0.2 % FS FS Repeatability ± 50 ppm± 250 ppm± 1000 ppm± 0.2 % FS

Figure 2 Comparison of resolution of IRC-A1(red) and competitor’s 20mm diameter NDIRcell (blue). Both cells were operated at 2.25Hz with the same electronic circuit. Both cells usethe same light source and dual pyroelectric detector. The improved resolution of the IRC-A1 isdue to the patent pending optical design.

TTTTTececececechnical Specifhnical Specifhnical Specifhnical Specifhnical Specificaicaicaicaicationtiontiontiontion For further information on the performance of this sensor, on other sensors in the range or any other subject, pleasecontact Alphasense Ltd. For Application Notes visit “www.alphasense.com”.
In the interest of continued product improvement, we reserve the right to change design features and specifications without prior notification. The data contained in thisdocument is for guidance only. Alphasense Ltd accepts no liability for any consequential losses, injury or damage resulting from the use of this document or theinformation contained within it ( ©ALPHASENSE LTD ) Doc. Ref. TDS/NDIRA/Issue 001