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BUD OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5259-r01 (7/21/11)
FLY/DESAT TIME
Time to Fly is a timer that counts down from 23:50 to 0:00 (hr:min) beginning 10 minutes after surfacing from a dive.
Time to Desaturate provides calculated time for tissue desaturation at sea level. It also begins counting down 10 minutes after
surfacing from a dive, counting down from a maximum of 23:50 to 0:00 (hr:min).
It generally starts at times much lower than 23:50 and reaches 0:00 before the Fly countdown reaches 0:00.
> When other screens are displayed while on the surface, the countdowns continue in the background.
> Desat Time is not displayed after a Violation dive.
> In the event that Desat Time still remains at the end of 24 hours, any remaining time will be cleared.
Fly/Desat, information includes (Fig. 14):
> Time to Desaturate (hr:min) with SAT icon, - : - - if no dive yet, 0:00 if no time remaining.
> Time to Fly (hr:min) with FLY icon, - : - - if no dive yet.
• B (2 sec) to access Set FO2.
SET FO2, information includes (Fig. 15):
> Graphic SET.
> Graphic AIR flashing with FO2 icon; or -
> Max Depth allowed for the PO2 alarm setting (1.40) with FT (or M) and MAX icons, and FO2 Set Point value flashing with
FO2 and NX icons.
• B (< 2 sec), repeatedly, to step upward through Set Points one at a time from Air to 21 through 50 (%) in increments of 1(%).
• B (2 sec) to save the setting and access Set Algorithm.
The BUD does not feature an FO2 50% Default selection. FO2 remains at the setting saved until changed.
SET ALGORITHM, information includes (Fig. 16):
> Graphics SET and ALGO.
> Z+ (or DSAT) icon flashing.
• B (< 2 sec) to toggle between Z+ and DSAT.
• B (2 sec) to save the setting and access Set CF.
This feature allows selection of the algorithm to be used for nitrogen and oxygen calculations for Plan and DTR values. The setting locks in for
24 hours after dives.
SET CONSERVATIVE FACTOR, information includes (Fig. 17):
> Graphic SEt.
> Graphic OFF (or ON) flashing with CF icon.
• B (< 2 sec) to toggle between OFF and ON.
• B (2 sec) to save the setting and access Plan.
When CF is set On, NDLs are reduced to values equivalent to those that would be available at the next higher 3000 foot (915 meter) Altitude.
Refer to tables in the back of this manual.
PLAN MODE
No Deco Dive Times (NDLs/OTLs) in Plan Mode are based on the algorithm selected (DSAT or Z+), the FO2 set, and any residual
nitrogen or oxygen remaining from previous dives.
Plan Lead-in, information includes (Fig. 18):
> Graphic PLAN.
> Graphic AIR with FO2 icon; or -
> Max Depth allowed for the PO2 alarm setting (1.40) with FT (or M) and MAX icons, and FO2 Set Point value with FO2 and
NX icons.
> DSAT (or Z+) icon, algorithm selected.
• B (< 2 sec) to access PDPS.
• B (2 sec) to step forward to Set Units.
PDPS (Pre Dive Planning Sequence)
The PDPS displays Depths and allowable No Deco Dive Times, NDC (nitrogen) or O2 time, whichever is in control. It is a se-
quence of screens displaying Depths from 30 to 190 FT (9 to 57 M) with Plan times* based upon the previous dive profiles in a
series of repetitive dives, taking into account descent and ascent rates of 60 FPM (18 MPM).
PDPS, information includes (Fig. 19):
> Dive Time allowed (hr:min) with NDC (or O2) icon.
> Plan Depth with FT (or M) icon.
> DSAT (or Z+) icon, and NX icon if Nitrox.
• B (< 2 sec), repeatedly, to step through screens one at a time from 30 to 190 FT (9 to 57 M) in increments of 10 FT (3 M),
then repeat the step through.
• B (2 sec), at any time, to exit the PDPS and revert to the Plan Lead-in screen.
Fig. 14 - FLY/DESAT TIMES
Fig. 16 - SET ALGORITHM
Fig. 15 - SET FO2
or
Fig. 18 - PLAN LEAD-IN
Fig. 17 - SET CF
or
Fig. 19 - PLAN LEAD-IN
*If less then 1 minute time
is available, dashes will
be displayed for time, and
Depth values will flash.