Galileo Sol.pdf

1. Introduction to Galileoinside the cabin of an airplane could causedecompression sickness, as calculated bythe decompression model in the computer. WARNINGFlying while Galileo displays NO FLY canresult in serious injury or death.The surface interval (SURF INT) isdisplayed from the moment the dive isclosed (5 minutes after surfacing), for aslong as there is remaining desaturation onthe computer.In addition, the bar graphs at the sidesof the screen show the CNS O 2 (left bar)and the residual nitrogen loading (rightbar). Depending on the amount of residualnitrogen, Galileo shows the prohibitedaltitude classes via grey lines inside thestylized mountain (see section 3.6 for moreinformation).1.4 Altitude alarm aftera diveGoing to altitude is in a way similar to startingan ascent from a dive: you expose yourbody to a lower partial pressure of nitrogenand consequently you start offgassing. Aftera dive, given the higher nitrogen loadingin your body, even reaching an otherwisenegligible altitude can potentially causedecompression sickness. Consequently,when in surface or sleep mode, Galileoconstantly monitors the ambient pressureand uses it to evaluate your nitrogen loadingand offgassing. If Galileo notices a drop inambient pressure not compatible with yourcurrent nitrogen loading, it will activatethe alarm to alert you of the potentiallydangerous situation.1.5 No-dive warning aftera diveIf Galileo detects a situation of increasedrisk (due to the potential of microbubbleaccumulation from previous dives or aCNS O 2 level above 40%), the symbolwill appear on the display together with asuggested surface interval. This minimumsurface interval is what Galileo predictsbeing necessary to reduce the number ofmicrobubbles and/or to reduce the CNS O 2level below 40%.You should not undertake a dive as longas the no-dive warning is displayed onthe computer screen. If the warning isprompted by microbubble accumulation(as opposed to CNS O 2 over 40%) andyou dive anyway, you will have shorter nostoptimes or longer decompression times.Moreover, the duration of the microbubblewarning at the end of the dive can increaseconsiderably.1.6 SOSIf you stay above a depth of 0.8m/3ft formore than 3 minutes without observinga prescribed decompression stop, thecomputer will switch into SOS mode. Oncein SOS mode the computer will lock upand will be inoperable as a dive computerfor 24 hours. If Galileo is used for divingwithin the 24 hours of an SOS lock, it willautomatically switch to gauge mode andprovide no decompression information.10