COMPASS HV switch off/on procedures
MWPC B chambers
21 September 2001
Angelo Maggiora
HV switch-off procedure for save interventions on MWPC B chambers:
Let know MW2 team about turning off HV crate
Ramp HV down via Slow Control
Switch off CAEN SY127 at rack 046 (push button "Main power" on front panel)
Put warning sign "Do not switch on" to HV PS with date, name, phone number (available in COMPASS control room)
Make entry to COMPASS logbook and inform shift crew
HV switch-on procedure for save interventions on MWPC B chambers:
Let know GEM team about turning on HV crate
Check that work is finished and equipment closed/covered/grounded correctly
Inform person who switched off (signed)
Make entry to Logbook and inform shift crew
Remove warning sign
Switch on mains on CAEN SY127 rack 046
Ramp HV up via Slow Control
This page was last updated on September 12, 2001 by
Gerhard Mallot