Can sensors tolerate continuous exposure to target gas?
Oxygen CiTiceLs® are available to monitor concentration of oxygen continuously in the range 0-30% oxygen by volume, or partial pressure continuously in the range 0-100% oxygen by volume. Our Toxic Gas CiTiceLs® have been designed for intermittent monitoring of target gases and are generally unsuitable for continuous monitoring applications, particularly those involving high concentrations of gases or extremes of humidity and temperature. Continuous monitoring may sometimes be achieved by cycling two (or even three) sensors in and out of the gas stream, such that each sensor is only exposed to gas for up to one half the time, being allowed to recover in fresh air for the other half.