3-6-2. Key operations
State
Key Entry Dual Time Set
A key Invalid
B key To Dual Time mode
C key Dual time clock UP (30 min)
C key pressed and held Dual time clock UP (fast-forward)
D key Dual time clock DOWN (30 min)
D key pressed and held Dual time clock DOWN (fast-forward)
No key operated for 2 - 3 minutes To Time mode
E wet contact: water detection
switch
To Dive mode
E wet contact (when BLD is
detected, an altitude rank
error occurs, locked in the
decompression stop violation state,
locked in the out-of-range state)
Invalid (audible alarm sounds
while ON)
3-6-3. Description of Dual Time Set mode functions
1 ADJUSTMENT METHOD
• Press the C key once to add 30 minutes.
• Press the D key once to subtract 30 minutes.
• The adjustable range is up to ±23:30. Key entries after the time has been
adjusted up to the limit are ignored. For example, if the current time
is 14:23 on February 15, the C key can be used to adjust dual time up
to 13:53 on February 16. Once that time setting has been reached, no
additional time can be added and all C key entries are ignored. (There
is no particular beep or other sound to indicate when C key entries are
being ignored.)
• Time loops between December 31, 2050 and January 1, 2003.
• Hold down either the C key or the D key to speed up (fast-forward)
adjustments.
2 CARRYING NUMBERS DURING ADJUSTMENT
• Numbers are carried over to the next column (hour, day, month) when
needed during adjustments. For example, if the C key is used to reset
the minutes setting from 30 minutes to 00 minutes, a value of one will
be added to the hour column when 00 is reached. Similarly, if the D key
is used to change the minutes setting from 00 minutes to 30 minutes, a
value of one will be subtracted from the hour column. If the C key is used
to reset the time from 23:30 to 0:00, a value of one will be added to the
date in dual time.
3-7. DIVE PlAN MODE
• Dive Plan mode is used to set the depth rank and to derive the non-
decompression limit at that depth.
• When the dive computer is locked in the out-of-range state or locked in the
decompression stop violation state, Dive Plan mode is skipped.
3-7-1. Display
< Air setting > < Nitrox setting >
Nitrox flag
Non-
decompression
limit
Depth rank PO
2
indicator
Non-
decompression
limit
Mode indicator
Depth rank
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