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Hi Matthias,

Thanks a lot, that worked like a charm! The dear OSTC is back on track again.

Best Regards // Åke

PS - I actually looked at the schematic for the reed switch without success so I believed that it was not there (-:

Hi Folks,

I did another long hypobaric decompression test today and brought mo dear loved old OSTC 2N with me. I checked absolute pressure and altitude measurements during the excursion and all went well until...

Upon compressing back to surface the computer (of course..) recognized the start of ...