How do you determine the need to replace the micro-fuel cell in Teledyne trace oxygen analyzers?
We are about to install an Insta Trace – CO2 analyzer. This is to be used to measure trace amounts of O2 in Natural gas with typically 1% CO2. Does the calibration mixture need to have a similar amount of CO2 in it to operate correctly? The calibration gas that we have has trace amount of Nitrogen e.g 90ppm in a methane balance but with no C02 content. Generally speaking, yes we do suggest you have a similar amount of CO2 in your calibration gas as compared to your sample. We have seen in some cases strange behavior (spikes, etc) from cells switched between CO2 bearing gas and non CO2 bearing gas. The mechanicism for this is not precisely understood, and not all cells demonstrate this. Many of our customers successfully to use O2 in N2 only and get good results, however.
Related Questions
- Do all trace oxygen analyzers require the user to apply "correction factors" when gases of different molecular weights are used, i.e. helium, hydrogen, methane, etc?
- How do sample pressure changes effect the output of a Micro-fuel Cell based oxygen analyzer?
- Is a Vinyl Acetate background suitable for Micro-fuel Cell oxygen sensors?
