I Dear Joe, Yes we switched the boxes and we stated that Two of Thema diesel bit workshop anymore. Thanks. Andrea A l 2017-09-30 02:37 Joe Geller ha scritto: > Andrea. We have some Noran PCS boxes but have no way is testing them. > Did you switch the boxes to different working spectrometers to see if > they work properly? > > Regards > > Joe Geller. Gellermicro.com > >> On September 29, 2017 at 4:10 AM Andrea Orlando wrote: >> >> Dear all, >> our microprobe Jeol JXA-8600 has 4 preamplifiers >> (Noran-TracorNorthern Proportional counting System) and SamX control >> software. Two of preamplifiers have problems; in particular, counts >> on the background rised of one or two orders of magnitudes and at >> the same time the counts on peaks falled down. We performed several >> tests during these weeks and we confirmed that the problem should be >> in the preamplifier electronics. In the past, sometimes we had >> similar, sporadic and ephemeral problems, happening without an >> evident reason, but they solved suddenly. So, do you know if it is >> possible to find new pre-amplifiers in the market or get them >> repaired somewhere? Thank you very much for your suggestions. >> Andrea >> >> **** >> JEOL Probe Users Listserver >> >> Moderator: Anette von der Handt, [log in to unmask], >> Electron Microprobe Lab, University of Minnesota >> >> Post a message: send your message to [log in to unmask] >> >> Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] >> >> On-line help and FAQ: http://probelab.geo.umn.edu/jeoluserlist.html >> [1] >> >> * > **** JEOL Probe Users Listserver > > Moderator: Anette von der Handt, [log in to unmask], Electron > Microprobe Lab, University of Minnesota > > Post a message: send your message to [log in to unmask] > > Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] > > On-line help and FAQ: http://probelab.geo.umn.edu/jeoluserlist.html > [1] > > * > > Links: > ------ > [1] http://probelab.geo.umn.edu/jeoluserlist.html **** JEOL Probe Users Listserver Moderator: Anette von der Handt, [log in to unmask], Electron Microprobe Lab, University of Minnesota Post a message: send your message to [log in to unmask] Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] On-line help and FAQ: http://probelab.geo.umn.edu/jeoluserlist.html *