Hi Zbigniew, can't say too much about ver 7.4 (is it really 7.4? I thought 4.x was only around), but regarding your problem 1.), I have experienced similar behaviour before using 4.0. There was simply a mistake in the original scripting code Finnigan provides in version 4.0. You had to manually edit the press adjust operation - sorry can't be more specific, since I work in another lab now. But this is my best guess. Cheers Peter On Friday 25 November 2005 09:36, Zbigniew Gorczyca wrote: > Dear Listmembers, > i'm a user of second-hand MAT 251. Recently I switched from ISODAT ver. 4.1 > to ver 7.4 and from this moment some new problems emerged: > > 1. During PRESS ADJUST operation, when sample bellow should be adjusted, > changeover valve is closed, standard (?!) bellow is adjusted, and High > Voltage is off (safety circuit ) = the end of measurement. > > 2. PEAK CENTER operation is sometimes terminated and fatal error "RT > Bounds exceeded" appears. > > Has anybody ever met such symptoms ? Has anybody any idea what they mean > and how to solve my problems? I will appreciate any help. > > best regards, > Zbigniew > - > dr Zbigniew Gorczyca > AGH University of Science and Technology > Faculty of Physics and Applied Computer Sciences > al. Mickiewicza 30 > PL 30-059 Krakow > POLAND -- ============================================================ Dr Peter Franz National Institute for Water and Atmospheric Research (NIWA) 301 Evans Bay Pde Private Bag 14901 Kilbirnie Wellington New Zealand Ph : ++64-(0)4-386-0506 Fax: ++64-(0)4-386-2153 Mobile: ++64-(0)211-109304 Email: [log in to unmask] Website: www.niwa.co.nz ============================================================