Thermo Scientific Nicolet Series User Manual page 14

Operation
Cooling a Detector
10 Nicolet iS20 User Guide
Fill the funnel and then let it drain completely two or three times. Wait until the vapor
plume disappears and then repeat until the dewar is filled.
4. Remove the funnel.
5. Wait until the vapor plume disappears, and then replace the plastic stopper and close the
dewar cover.
6. Wait 20 minutes, and then repeat the preceding steps to make sure the dewar is
completely filled.
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