26
GEO 4.0 OPERATING MANUAL
© Pelagic, 2019
Doc. No. 12-5670-r01 (2/27/18)
ALT 3
The ALT 3 screen displays only after a nitrox dive. It displays the current oxygen saturation level, PO2 Alarm setting, and the current gas mix.
O
2
Saturation
32% O
2
Gas #
PO
2
Alarm
setting
FLY/DESAT
The FLY/DESAT screen displays the Time to Fly and the DESAT (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 DESAT counter shall provide calculated time for Tissue Desaturation 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 NORM or FREE
dives counting down from a maximum of 23 to 10 (hr only), then 9:59 to 0:00 (hr:min). When the DESAT countdown reaches 0:00 (hr:min), which
will generally occur prior to the FLY countdown reaching 0:00 (hr:min), it will remain on the display as 0:00 until the Fly count down reaches 0:00.
NO PREVIOUS DIVES
10 MIN AFTER A DIVE
hr:min
9:- - displays
if time > 9:59
PLAN
This mode calculates dive depth and time limits. To do so, it accounts for any residual nitrogen, oxygen, surface intervals, the programmed gas mix,
and PO2 alarm setting. Either NDC (No Decompression) or O2 MIN limits are displayed, depending on whether nitrogen or oxygen levels will be
the limiting factor. The time limit will display in minutes.
NOTE: Depths exceeding the MOD (Maximum Operating Depth), if nitrox, or that have less than 1 minute allowed dive time will
not be displayed.
SELECT
ADV
.
LIGHT
MODE
to increase
depth
to decrease
depth
SELECT
ADV
.
LIGHT
MODE
blank if
Conservative
turned OFF
current PO
2
Alarm
setpoint, blank if
FO2 is Air
% O
2
,
current
FO
2
setpoint
Maximum
Operating
Depth
No Decompression
or O2 MIN
to Planner
exit to
Main Menu
PLAN LEAD-IN
planned depth
ALT 2
The ALT 2 screen displays temperature and current elevation readings.
temperature
elevation
(EL2 - EL7, blank if sea level)
Summary of Contents for GEO 4.0
Page 6: ...6 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 GETTING STARTED...
Page 12: ...12 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 WATCH MODE...
Page 19: ...19 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 DIVE FEATURES...
Page 24: ...24 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 NORM SURFACE MODE...
Page 36: ...36 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 NORM DIVE MODE...
Page 45: ...45 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 GAUGE MODE...
Page 49: ...49 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 FREE MODE...
Page 55: ...55 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 REFERENCE...
Page 59: ...59 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 TECHNICAL DATA...