Operation Manual
6
OCS OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5272-r01 (9/28/11)
DISPLAY LAYOUT
Descend,
Ascend,
or Stop
TLBG or 
O2BG
BG id
VARI
Log 
Mode
Depth id
Temp or
Heading
Low 
Battery
FO2
Nitrox
Time
Daily AL
Dot Matrix
ICONS
DISPLAY ABBREVIATIONS
ACTIV  = Activation
AL  = Alarm
ALT  = Alternate (watch time)
AUD  = Audible
AVAIL  = Available
BATT  = Battery
CAL  = Calibrate (compass)
CDT (CD)  = Countdown Timer
CHRONO  = Chronograph (stop watch)
CONSERV  = Conservative Factor
DD  = Descending Depth (alarm)
DECO  = Decompression
DESAT  = Desaturation (nitrogen)
DFLT  = Default
DSAT  = Algorithm type
DTR  = Dive Time Remaining
DURA  = Duration (backlight)
E  = East (compass)
EDT  = Elapsed Dive Time
EL  = Elevation (altitude)
FO2  = Fraction of Oxygen (%)
FORM  = Format (date, time)
FREE  = Free Dive Mode
FT  = Feet (depth)
GAUG  = Digital Gauge Dive Mode
GLO  = Glow (backlight)
HIST  = History
LO  = Low (battery)
M  = Meters (depth)
MIN  = Minutes (time)
N  = North (compass)
NDC  = No Deco DTR
NDL  = No Deco Limit
NE  = Northeast (compass)
NO  = Number
NO-D  = No Decompression
NORM  = Normal Dive Mode
NW  = Northwest (compass)
O2  = Oxygen
OTR  = O2 DTR
PO2  = Partial Pressure of O2 (ATA)
REF  = Reference (compass)
S  = South (compass)
SAFE  = Safety (stop)
SE  = Southeast (compass)
SEC  = Seconds (time)
SET A  = Set Alarms
SET F  = Set FO2 items
SET U  = Set Utilities
SN  = Serial Number
SURF  = Surface
SW  = Southwest (compass)
SWCH  = Switch (gas)
TAT  = Total Ascent Time (deco)
TLBG  = Tissue Loading Bar Graph
TMR  = Timer
VIOL  = Violation
W  = West (compass)
Z+  = Algorithm type
OCS Watch/Dive Computers are placed in a Deep Sleep mode prior to being shipped from the factory. The intent is to extend storage life of the Battery 
for up to 7 years, before the unit is initially placed in service. 
In this mode, Date and Time are updated as they normally would be. However, they are not displayed. Upon waking the OCS up, the correct Date and 
USA Pacific Time will be displayed and it will be ready to operate with full functions. 
To wake the OCS up from Deep Sleep mode, simultaneously depress the upper/right (S) and lower/left (A) buttons for 3 seconds until the display comes full 
ON displaying the Watch Main Time screen, then release them.
NOTE: Once the OCS is brought out of the Deep Sleep mode, it can only be placed back into it by the factory.
INITIAL ACTIVATION










