IMPORTANT WARNINGS 4
GENERAL WARNINGS 4
WARNINGS 5
Dives with Nitrox mixtures. 6
Before the dive 6
Limits of dive computers 7
Care and maintenance 7
TECHNICAL CHARACTERISTICS OF THE COMPUTER 8
Hardware 8
Certication 8
Software 8
Brief summary of Technical Characteristics 8
Recharging the battery 10
Dives in especially cold water (<3 °C) 11
JACK OUT OF THE WATER: 12
Sleep Mode 12
Lock screen 13
JACK menu structure 14
Watch screen 15
Watch Menu 16
DISPLAY (Screen settings) 17
SYS SET (date and time) 18
PC MODE (connected to PC or Mac) 19
COMPASS (Compass Settings) 20
Reset to Default (reset to factory defaults) 21
INFO 22
Dive menu 23
DIVE SET 1 (Dive settings 1) 24
DIVE SET 2 (Dive settings 2) 26
FREE SET (Freedive Settings) 27
FREE ALARM (Freedive Warning) 29
MIX (Dive Mix Settings) 31
PLANNER (within no-deco limits) 32
PLANNER (deco planner) 33
LOGBOOK 34
ALARM (Open Circuit Alarms) 35
The Compass 36
Weather Forecast 37
Altimeter, Barometer, Thermometer 38
Apps for JACK Free 39
JACK DURING THE DIVE 40
Freediving 40
Reducing the risk of Oedema / Hemoptysis 41
Reducing the risk of Taravana 42
Hydration alert 43
Dive in SCUBA mode (OC) 44
Other information during the dive 46
Dive in GAUGE mode 48
Compass during the dive 49
Apps during the dive 50
JACK AFTER THE DIVE 51
No-Fly 51
Desaturation information 52
App Menu 53
CHRONO: Stopwatch 54
MOON: Phases of the Moon 54
FITNESS: Step counter 55
CLOCK ALARM 56
Connect your JACK computer to your Mac or PC. 57
Updating your JACK Dive Computer 57
CERTIFICATE OF GUARANTEE 58
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