4
NC: DFBXD – Lead HTS #2 too cold Person How When Observations Statu s Cartridge x 2 Philippe Denis (Ph.D) Changed (confirmation and details by Ph.D) 20 and 27 Mai 09 ? ? Thermal switch Philippe Denis Changed (confirmation and details by Ph.D) 20 and 27 Mai 09 Location of the integrated TC by the Cartridge different temperatures measured on the cu block and by the TC ? Regulator Philippe Denis By inversing lead #1 and #2 cartridges 20 and 27 Mai 09 If cartridges used w/o copper block then fast oscillation for both lead #1 and #2 tested. ? TT891 C.D Monitoring July 08 and Mai 09 If CV891 forced close then TT891 warm-up OK TT893 C.D Monitoring – Not a control parameter July 08 and Mai 09 Ok at RT. Compared with ambiant OK CV891 P2 Control room Laurent Sevrin / Jean-Paul Closing CV891 Compared lead #1 and 2 behaviors 27 Mai 09 If CV891 closed then TT891 warms- up No leak observed. OK Electronics of CV891 A. P. Test on going to define PID regulator parameters for 7.5 kA leads ? Regulate in narrow range (0<2% opening) ? Insulating vacuum for A. B. ? Pump and keys available by Pascal Chambouvet ? ?
