Fly/Sat (Desat) - Aqua Lung i550 Owner's Manual

ALT 2
The ALT 2 screen displays current elevation readings, time of day, and temperature.
ALT 3
The ALT 3 screen displays only after a nitrox dive. It displays the current oxygen saturation level, programmed
PO Alarm setpoint, gas number, and the current gas mix.
2

FLY/SAT (DESAT)

The FLY/SAT screen displays the Time to Fly and the SAT (desaturation) countdown. The Time to Fly countdown
shall begin counting from 23:50 to 0:00 (hr:min), 10 minutes after surfacing from a dive. The SAT (Desat) counter
shall provide calculated time for Tissue Desatuation at sea level taking into consideration the CF (Conservative
Factor) if it was set on. It shall begin counting down 10 minutes after surfacing from DIVE mode dives. It will count
down from a maximum of 23 to 10 (hr only), then 9:59 to 0:00 (hr:min). When the SAT countdown reaches 0:00
(hr:min), which will generally occur prior to the FLY countdown reaching 0:00 (hr:min), the SAT time is to remain
on the screen as 0:00 until the FLY counter shuts the i550 off, 24 hours after the last dive.
NO PREVIOUS DIVES
© Aqua Lung International, Inc. (2016)
PO Alarm
2
setpoint
Gas #
hr:min
elevation
(EL2 - EL7, blank if sea level)
time
temp.
% O Saturation
2
32% O
2
10 MIN AFTER A DIVE
18
DIVE SURFACE MODE
9:- - displays
if time > 9:59
Doc. 12-7840-r03 (3/28/16)