Hi,

we have a problem during leak test on Flash EA1112 HT in OH configuration.
Carrier gas drops normally after 90s, but reference gas remains constant
(250ml/min). All the tubing and columns are connected properly. It is not
a leak because no argon and water are detected. The tubes are not clogged.
We checked all the pneumatic circuits and everything seems to be ok.
Do you have any idea what might prevent the reference gas from decreasing
during leak test? I will be grateful for any suggestion.

Cheers,

Kasia Gros
Institute of Geological Sciences, PASc
Twarda 51/55, 00-818 Warsaw, Poland