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Press KEY1 again to go to the Big screen, on which are displayed only the dive time, depth and no-
decompression time or, as the case may be, decompression information after expiry of the no-
decompression time.
On the Dive graph screen, you will see the current dive profile with information on depth, maximum
depth and time. Press KEY1 to return to the Detailed screen.
Menu
(BOTH KEYS)
Unlike the OC mode, several items that are important for closed-circuit diving are added to the
menu.
Bailout mode (OC)
If it is necessary to change to open circuit, this command switches the computer to the open-circuit
mode. After switching to this mode, decompression is calculated in the standard manner according
to the composition of the chosen mixture. Therefore, it is necessary to immediately select the
mixture that is actually being breathed after switching to bailout mode. This is accomplished by using
either the keypad shortcuts KEY1 LONG up and KEY2 LONG down or by accessing the menu and
selecting “Mix”. All controls are then identical to the OC mode. To return to the CCR mode, select
“Original mode (CCR)” in the menu.
Setpoint
The setpoint item serves for switching or changing the setpoint. The “Set high” and “Set low” items”
serve for switching the selected setpoint to high or low.
To change the setpoint to a completely different value, use the +0.10 and -0.10 items, by means of
which you will change the setpoint value by one-tenth up or down. You will see the changed value
one line below highlighted in yellow. For storing this setting, move the cursor to the “Accept” item
and confirm by pressing KEY1.
It is also possible to switch setpoints with key shortcuts in the same manner as when switching gases
during an open-circuit dive. By pressing KEY1 LONG, you will switch to setpoint high; by pressing KEY2
LONG, you will switch to setpoint low. In light of the fact that there is a certain risk of unintentional
switching of gases during a dive, this option is adjustable in the (Main menu > Setup > Preferences >
User interface > Gas shortcuts) in firmware version 1.5. Key shortcuts are activated by default.
End dive
This item (which functions only on the surface) terminates the dive and the dive is stored in the
Logbook. If a dive is not terminated manually, it will end automatically following a ten minute
interval from the last ascent above the depth of 0.5m. The dive is then stored in the logbook without
the last ten minutes on the surface.
Show plan
The current course of decompression can be displayed during the dive. If you are just under the
surface or you launch a demo dive, go to the menu (BOTH KEYS) and select the “Show plan” item.
The Freedom will display the list of decompression stops and the length thereof. Use of all set
mixtures with gas switch at the optimum depth is anticipated in the calculation of the ascent time.
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