Oceanic Watch / Dive Computer GEO - Manual (Page 60)

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 While the PLAN LEAD-IN screen is displayed, pressing and releasing the S
button momentarily and repeatedly (< 2 seconds each time) will increase the
Planned Depth in increments of 10 FT (3 M), displaying the information one
Depth screen at a time.
Information provided includes Depths and allowable No Decompression Dive
Times. The PDPS will step through Depths from 30 to 190 FT (9 to 57 M), or to the
Maximum Depth that will allow theoretical No Decompression Dive Time of at
least 1 minute based upon the previous dive profiles in a series of repetitive dives
and taking into account descent and ascent rates of 60 FPM (18 MPM).
NOTE: When the Conservative Factor is set ON, No Decom-
pression Dive times are reduced to the values of the next 3000
foot (915 meter) higher Altitude.
 Prior to the first dive of a series, pressing and releasing the A button
momentarily (< 2 seconds) will advance to LOG MODE.
PLAN Lead-In > LOG
 After a dive is made, it will advance to FLY MODE.
PLAN Lead-In > FLY
 Depressing and holding the M button for 2 seconds or if no button is pressed
during a 2 minute period operation will revert to the NORM SURF MAIN
screen.