Filter
Top Products
6
BUD OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5259-r01 (7/21/11)
CONTROL BUTTON (B)
The Control Button (B) allows you to select display options and access specific information when you want to see it.
BAR GRAPHS
TLBG (Tissue Loading Bar Graph)
The TLBG (Fig. 1a) represents tissue loading of nitrogen, showing your relative no decompression or decompression status. As
your depth and elapsed dive time increase, segments will add to the TLBG, and as you ascend to shallower depths, the segments
will begin to recede, indicating that additional no decompression time is allowed for multilevel diving.
The TLBG monitors 12 different nitrogen compartments simultaneously and displays the one that is in control of your dive.
It is divided into a No Decompression zone (up to 3 segments displayed), a Caution zone (4 segments displayed, also No Deco),
and a Decompression zone (all 5 segments displayed).
While you cannot provide a guarantee against the occurrence of decompression sickness, you may choose your own personal
zone of caution based upon age, physique, excessive weight, etc., to reduce the statistical risk.
VARI (Variable Ascent Rate Indicator)
The VARI (Fig. 2a) provides a visual representation of ascent speed (i.e., an ascent speedometer).
The segments of the VARI represent two sets of speeds which change at a reference depth of 60 FT (18 M). Refer to the chart for
segment values.
WARNING: At depths greater than 60 FT (18 M), ascent rates should not exceed 60 FPM (18 MPM). At depths of
60 FT (18 M) and shallower, ascent rates should not exceed 30 FPM (9 MPM).
When Ascent is too fast, (i.e., greater than 60/30 FPM, or 18/9 MPM), all segments will flash and the graphic SLOW will be
displayed (Fig. 3) until ascent is slowed.
ALPHA / NUMERIC DISPLAYS
It is imperative that you understand the formats, ranges, and values of the information represented to avoid any possible misun-
derstanding that could result in error.
Current Depth is displayed on the Main Dive screens (Fig. 4a).
While at a No Deco Safety or a Deco Stop, the required Stop Depth is displayed on the Main (Fig. 5a).
Max Depth is displayed on Alternate Dive screens (Fig. 6a).
Times are shown in various formats.
• Hour:Minute - Dive Time Remaining (Fig. 4b), Elapsed Dive Time (Fig. 6b), Surface Interval, Fly, Sat.
• Minute:Second - Safety Stop Time (Fig. 5b).
Altitude is displayed as a range from L2 to L7 on the Surface Main when at elevations above 3,000 feet. It is not displayed at
Sea level, which extends up to 3,000 feet elevation. Refer to the table on page ??.
POWER SUPPLY
The BUD utilizes (1) type CR 2430 Lithium 3 volt cell. Expected use life is approximately 100 hours if (1) 1 hour dive per day is
conducted each time the unit is activated, up to 300 hours if (3) 1 hour dives per day are conducted.
Low Battery
Voltage level is checked upon activation and every minute during operation on the surface.
• When voltage decreases to the warning level (2.75 volts), the icon is displayed solid on the Surface Main (Fig. 7a).
• Upon decreasing to a voltage level that will no longer sustain proper operation (2.50 volts), the icon will flash 5 times and
the unit will shut off.
• If a low battery condition exists when the unit is activated (by pressing the button), the graphic bAT and the icon will appear
flashing for 5 seconds and the unit will shut off.
• If the button is not pressed to activate the unit prior to a dive, and a low battery condition exists, the icon will appear flashing
as a warning upon descent to 5 FT (1.5 M) and no other information will be displayed.
• If a low battery condition occurs during a dive, there will be sufficient battery power to maintain operation for the remainder
of that dive. Upon entry into Surface Mode, the Battery icon will appear (shell only with no inner bar) with the graphics CHG
BAT flashing (Fig. 8).
Fig. 1 - TLBG
a
Fig. 2 - VARI
a
Fig. 3 - ASCENT ALARM
Deeper than 60 FT (18 M)
VARI Ascent Rate
Segments FPM MPM
0 0 - 20 0 - 6
1 21 - 30 6.1 - 9
2 31 - 40 9.1 - 12
3 41 - 50 12.1 - 15
4 51 - 60 15.1 - 18
5 60 + 18 +
60 FT (18 M) & Shallower
VARI Ascent Rate
Segments FPM MPM
0 0 - 10 0 - 3
1 11 - 15 3.1 - 4.5
2 16 - 20 4.6 - 6
3 21 - 25 6.1 - 7.5
4 26 - 30 7.6 - 9
5 30 + 9 +
Fig. 5 - STOP DEPTH
Fig. 4 - CURRENT DEPTH
a
Fig. 6 - MAX DEPTH
a
a
b
b
b
Fig. 7 - LOW BATTERY
WARNING
a
Fig. 8 - LOW BATTERY
(occurred during dive)