Can I test CiTiceLs with a surrogate gas?
CiTiceLs should be calibrated with their target gas to ensure maximum accuracy. The calibration is best made using a gas mixture with a concentration where most measurements will be made; where this is not possible a gas mixture towards the top of the CiTiceL’s measuring range should be used. Calibration gases that exceed the CiTiceLs measuring range should not be used since this may lead to an inaccurate calibration. CiTiceLs are built and tested for their response to their target gas – prior to despatch all CiTiceLs are tested to ensure their response is within strict tolerances. Cross-sensitivities are tested on a batch basis; this means that there is inherently more possibility of variation. It is for this reason that it is strongly recommended that the use of surrogate gases for calibration be avoided.