Divesoft Freedom - System Check; Open Circuit - Dive Mode; Mode Activation; Screens

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pressing KEY1 and set the value by tilting or tapping. The default value is 180 days; the setting range
is 0-540 days.
For the actual calibration, connect the oxygen sensors to the Freedom’s connector. Calibrate the
sensors using ambient air; check to make sure that the ambient air has not been contaminated with
another gas (e.g. exhaled air, exhaust gases, oxygen from your rebreather, etc.). If you calibrate for a
different, specific gas, use appropriate means to ensure that the calibration gas flows around the
oxygen sensors and is not contaminated with other ambient gases. Afterwards, select “Start
calibration” and confirm the displayed fraction of oxygen by pressing KEY 1 or, if necessary, cancel it
by pressing KEY 2. After starting calibration, wait until all sensors display the value “Stable”. Then
STORE THE CALIBRATION BY PRESSING KEY1. If you cancel the calibration by pressing BOTH KEYS, the
new calibration will not be stored.
System check
System check shows the current information about the software and firmware versions, license,
current settings, battery status and pressure-sensor status.
DivingwithFreedom
Open circuit – dive mode
The dive mode is the heart of the FREEDOM system. The dive mode serves for online calculation of
decompression using conventional open-circuit scuba equipment. It is possible to use a wide range of
breathing mixtures, from Air and NITROX to HELIOX and TRIMIX. You can use up to nine variable
mixes as travel, bottom and decompression mixes.
The dive mode is identified by the blue frame.
Mode activation
Go to main menu > Dive > Open circuit
The current setting status is displayed first. Check all settings and confirm with KEY 2 or go back with
KEY 1.
If you have the dive mode set as your priority mode, it starts automatically after you enter the water
and dive to a depth below 1.5m. DIVESOFT recommends checking the battery status and manual
activation before entering the water.
Screens
SCR mode includes four screens. The diver can scroll cyclically between screens with KEY 1.
The Detailed screen is the most detailed screen and it displays: Depth, Dive time, Deco
stop/Ceiling, Stop time, Ascent time, Deep Stop, Max depth, Temperature, ppO2, decompression-
status graphic symbol, battery-status graphic symbol.