The MCT detector dewar should maintain its insulating vacuum for several years. If the vacuum is lost, the insulation will lose effectiveness and the following symptoms may occur:
- Shortened hold times and condensation (liquid nitrogen boils off much faster than usual)
- Water and atmospheric contaminants condensing on the detector window will show up in spectra as unwanted peaks
- Note that water condensation may also appear during normal detector cooling in high-humidity environments
|If your instrument shows any of these symptoms, the detector dewar may have a vacuum leak. Contact us immediately for assistance.