view D60253 operations manual - AvionTEq

Penny/Gilesl·~.~:hl?*~}'"l,~»J~J')~i'!~M)~-:~.'("i~~.\&o?tlh~(~~:x-t4..'S!~r~;.>; ~. ..... - 7Avionics SystemsDivisionThis period is to ensure stability within the pressure systemto accurately monitor leak rates. During this period ofvolume settlement (approx 3 mins.) the test set is monitoringthe leak rate and should this be in excess of 5mb/min(185ft/at 10Kft) the test is aborted and an indication giventhat there is a system leak, and which line is leaking.If not aborted, the period of volume settlement will continueuntil complete, at which time the display will change toindicate that the unit is now measuring any leaks in thesystem. This takes a further minute after which time theleak rates are displayed in the appropriate units.Page 29PUB. 12119 May 1989