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VEO 4.0
Operating Manual
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Oceanic VEO 4.0 Operating Manual

VEO 4.0 OPERATING MANUAL
VEO 4.0
DIVE COMPUTER
OPERATING MANUAL
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
1
CONTENTS
VEO 4.0 OPERATING MANUAL
GETTING STARTED 6
DIVE FEATURES 11
DIVE SURFACE MODE 16
HIGH O
2
ALARM 37 PO2 DURING DECOMPRESSION 37
SAT (OXYGEN SATURATION) 38
2
WARNING 38 ALARM 38 WARNING DURING DECOMPRESSION 38 ALARM DURING DECOMPRESSION 38 ALARM ON SURFACE 39
37
GAUGE MODE 40
FREE MODE 44
DIVE OPERATION 30
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
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REFERENCE 51
TECHNICAL DATA 55
VEO 4.0 OPERATING MANUAL
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VEO 4.0 OPERATING MANUAL
NOTICES
LIMITED TWO-YEAR WARRANTY
For details, refer to the Product Warranty Registration Card provided. Register on line at www.OceanicWorldwide.com
COPYRIGHT NOTICE
This operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from either Oceanic or Pelagic.
Veo 4.0 Operating Manual, Doc. No. 12-5671
© Pelagic, 2019
San Leandro, CA USA 94577
TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE
Oceanic, the Oceanic logo type, Veo 4.0, and the Veo 4.0 logo are registered and unregistered trademarks, trade names, and service marks of Oceanic. The Graphic Diver Interface, Tissue Loading Bar Graph (TLBG), Pre-Dive Planning Sequence (PDPS), OceanLog, and Dual Algorithm are all registered and unregistered trademarks, trade names, and service marks of Pelagic. All rights are reserved.
PATENT NOTICE
U.S. patents have been issued to protect design features of our products. The list of patents issued and pending are available at dive-patent.com.
DECOMPRESSION MODEL
The programs within the Veo 4.0 simulate the absorption of nitrogen into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of experiences. The Veo 4.0 dive computer model is based upon the latest research and experiments in decompression theory. Still, using the Veo 4.0, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of
avoiding decompression sickness, i.e. “the bends.” Every diver’s physiology is different, and can even vary from day to day. No machine can predict how your body will react to a particular dive prole.
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
4
Welcome
to
VEO 4.0 OPERATING MANUAL
OCEANIC
and
THANK YOU
for choosing the
Veo 4.0
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
5
GETTING STARTED
VEO 4.0 OPERATING MANUAL
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
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VEO 4.0 OPERATING MANUAL
BASICS
Welcome to your new VEO 4.0. The VEO 4.0 is an easy to use dive computer utilizing a two button interface. Divers may choose between three modes of functionality consisting of Dive, Gauge, and Free Modes. Though the VEO 4.0 is easy to use, you will get the most out of your new VEO
4.0 if you take some time to familiarize yourself with its displays and operation. Information has been organized into easy to follow sections to aid you in learning all you need to know. There is also a glossary at the end of this guide for any terms that may sound unfamiliar.
ACTIVATION
To activate the VEO 4.0, press and release either button. The VEO 4.0 will also turn on if its metal contacts become wet. The Wet Act (water activa­tion) feature may be disabled if that is your preference. Disabling the Wet Activation feature is described in the Dive Surface Mode chapter, p. 16.
• Upon activation The unit will enter a Diagnostic Mode. The VEO 4.0 checks the display and voltage at this time to ensure that everything is within tolerance.
• It will also check ambient barometric pressure, and calibrate present depth as 0 m (ft). When at 916 m (3001 ft), or higher, it will adjust depth for the higher altitude.
• After the Diagnostic check, the VEO 4.0 will display the surface screen in Dive Mode.
NOTE: The VEO 4.0 has no off button or command. If no buttons are pressed or dives made within 10 minutes the computer
will enter Sleep Mode. The screen and Bluetooth (if set ON) shut down, to save battery life, while in Sleep Mode. To wake the computer press any button. Additionally, the unit will completely shut itself off after 2 hours of inoperation. However, the VEO
4.0 will stay on, in Sleep Mode, for a 24 hour period after the dive, counting down FLY (time to fly) and SAT (desaturation time) if a dive has been made.
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DISPLAY ICONS
6
VEO 4.0 OPERATING MANUAL
7
8
3
2
5
4
1
24
9
10
25
26
27
11
12
13
14
15
2223
20
21
19
18
17
16
1 Fraction of Oxygen 2 Gas # 3 Time ID 4 Tissue Loading Bar Graph 5 Logbook 6 Mode 7 Variable Ascent Rate 8 Depth ID (units) 9 Decompression (DEC) or
No Decompression (NO DEC) 10 Time To Surface 11 Oxygen Sat (Saturation) or min 12 Minutes 13 Bluetooth is on
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
14 Minutes 15 Low Battery 16 Fraction of Oxygen 17 Dive Time (min) or # 18 Partial Pressure of Oxygen 19 Descend, Ascend, or Stop 20 Decompression Stop 21 Depth ID (units) 22 Temperature 23 Value is Max 24 Partial Pressure of Oxygen 25 Stop Triggered 26 Minutes 27 Seconds
8
(Deep, Safety, or Deco)
VEO 4.0 OPERATING MANUAL
ADV
SEL
BUTTONS
The VEO 4.0 utilizes 2 control buttons called the ADV (Advance) and SEL (Select) buttons. They allow you to select mode
options and access specic information. They are also used to enter settings, activate the backlight, and acknowledge the audible alarm. Throughout this manual they will be referred to as the ADV and SEL buttons.
Pressing different combinations of these buttons will navigate through different menus and options of the VEO 4.0. The symbols in the table below will illustrate how to proceed through the menus.
SYMBOL MEANING
PRESS BUTTON LESS THAN 2 SECONDS
HOLD BUTTON GREATER THAN 2 SECONDS
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BUTTON FUNCTIONS
ACTION FUNCTION
Press Button • to activate the VEO 4.0
• to access Alt screens
• to advance or step through menus
• to toggle or change setpoints
ADV
ADV
SEL
SEL
• to activate the backlight
• to scroll quickly, changing setpoints
• to scroll quickly through menu lead-in screens (selections)
VEO 4.0 OPERATING MANUAL
ADV
ADV
ADV
• to select, access, step forward through selections, or save a setting
• to activate the backlight without leaving a surface or underwater main screen
SEL
• to step backwards through selections or menu screens
SEL
• to exit a menu directly to the main screen
SEL
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DIVE FEATURES
VEO 4.0 OPERATING MANUAL
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VEO 4.0 OPERATING MANUAL
DTR (DIVE TIME REMAINING)
The Veo 4.0 constantly monitors No Decompression status and O2 Accumulation, and will display whichever time is the least amount available as
DTR on the No Decompression Dive Main screen. The Time being displayed will be identied by the NO DEC min (no decompression time) or O2
min icons.
NO DECOMPRESSION
No Decompression is the maximum amount of time that you can stay at your present depth before entering decompression. It is calculated based on the amount of nitrogen absorbed by hypothetical tissue compartments. The rates each of these compartments absorb and release nitrogen is math­ematically modeled and compared against a maximum allowable nitrogen level.
Whichever compartment is closest to this maximum level is the controlling compartment for that depth. Its resulting value NO DEC min (no decom­pression time) will be displayed. It will also be displayed graphically as the TLBG Bar Graph, see Bar Graphs below.
As you ascend, the TLBG Bar Graph segments will recede as control shifts to slower compartments. This is a feature of the decompression model that is the basis for multilevel diving, one of the most important advantages that Oceanic dive computers offer.
DTR is No Decompression
O2 MIN (OXYGEN TIME REMAINING)
When set for nitrox operation, O2 SAT (Oxygen Saturation) during a dive is displayed on an ALT screen as a percentage of allowed saturation
identied by the O2 SAT icon. The limit for O2 SAT (100%) is set at 300 OTU (Oxygen Tolerance Units) per dive or 24 hour period. See the chart at the back of this manual for specic times and allowances. O2 SAT and O2 min values are inversely related; as the O2 SAT value increases the O2
min value decreases.
When the O2 min value becomes less than the No Decompression calculations for the dive, DTR (Dive Time Remaining) will be controlled by O2 SAT
and the O2 min value will be displayed as the DTR on the Dive Main screen, identied by the O2 min icons.
DIVE ALT 3 DIVE MAIN
% O2 Saturation
DTR is O2 MIN
BAR GRAPHS
The Veo 4.0 features two specic bar graphs.
1. The one on the left represents nitrogen loading. It is referred to as the TLBG (Tissue Loading Bar Graph).
2. The one on the right represents ascent rate. It is referred to as the VARI Bar Graph.
Nitrogen Loading
Ascent Rate
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VEO 4.0 OPERATING MANUAL
VARI BAR GRAPH
The VARI Bar Graph provides a visual representation of ascent speed (i.e., an ascent speedometer). When the ascent is faster than the recommend-
ed 30 fpm (9 mpm), all segments ash and the message SLO (slow) ashes until the ascent is slowed.
# OF SEGMENTS ASCENT RATE,
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)
ASC ALARM TRIGGERED
ashing
TLBG (TISSUE LOADING BAR GRAPH)
The TLBG represents your relative No Decompression or Decompression status. The rst four segments represent No Decompression status and the fth indicates a Decompression condition. As your Depth and Elapsed Dive Time increase segments are added. As you ascend segments recede,
indicating that additional No Decompression time is available. The Veo 4.0 monitors multiple different nitrogen compartments simultaneously and the TLBG displays the one that is in control of your dive at any given time.
DUAL ALGORITHM®
The Veo 4.0 is congured with 2 algorithms which allows you to choose which set of NDLs (No Decompression Limits) will be used for nitrogen/oxy­gen calculations and displays relating to Plan Mode and DTR (Dive Time Remaining) for Dive Mode dives.
You can select DSAT or Z+ prior to new dives. Also, the selection can be changed after dives once Desaturation Time decreases to 0:00, otherwise the selection will lock in for 24 hours after the last dive.
DSAT was the original standard used by Oceanic in all of its dive computers until the dual function was implemented several years ago. It features NDLs that are based on exposures and test data which also formed validation for the PADI RDP. It imposes restrictions for repetitive Decompression dives which are considered more risky than general No Deco dives.
Z+ (the Pelagic Z+ algorithm) performance is based on Buhlmann ZHL-16c. It features NDLs that are considerably more conservative than the DSAT version especially at shallower depths.
To create even greater margins of safety with respect to decompression, a Conservative Factor as well as Deep and Safety Stops are available and can be activated for Dive Mode No Decompression dives.
CONSERVATIVE FACTOR
When the CF (Conservative Factor) is set On, the dive time remaining, No Decompression/Oxygen Time Remaining, which are based on the algo­rithm and used for N2/O2 calculations and displays relating to Plan Mode, will be reduced to the values available at the altitude level that is 3,000 ft (915 m) higher than the actual altitude at activation. Refer to the charts in the back of this manual for dive times.
DEEP STOP
When the DS (Deep Stop) selection is set ON, it will trigger after descending deeper than 80 ft (24 m). The Veo 4.0 then calculates (continually updating) a Stop Depth equal to ½ the Max Depth.
NOTE: The Deep Stop feature only works in Dive mode while within No Decompression times.
• While 10 ft (3 m) deeper than the calculated Deep Stop, you will be able to access a Deep Stop Preview screen that will display the current calcu-
lated Deep Stop Depth/Time.
• Upon initial ascent to within 10 ft (3 m) below the calculated Stop Depth, a Deep Stop screen displaying a Stop Depth at ½ the Max Depth will appear with a countdown timer beginning at 2:00 (min:sec) and counting down to 0:00. If you descend 10 ft (3 m) below, or ascend 10 ft (3 m) above, the calculated Stop Depth for 10 seconds during the countdown, the No Decompression Main will replace the Deep Stop Main display and the Deep Stop feature will be disabled for the remainder of that dive. There is no penalty if the Deep Stop is ignored.
• In the event that you enter Decompression, exceed 190 ft (57 m), or a High O2 SAT (Oxygen Saturation) condition, ≥ 80%, occurs, the Deep
Stop will be disabled for the remainder of that dive.
• The Deep Stop is disabled during a High PO2 Alarm condition, ≥ set point.
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VEO 4.0 OPERATING MANUAL
SAFETY STOP
Upon ascent to within 5 ft (1.5 m) deeper than the SS depth set for 1 second on a No Decompression dive in which Depth exceeded 30 ft (9 m) for 1 second, a beep will sound and a SS at the depth set will appear on the Dive Main display with a countdown beginning at the SS time set and counting down to 0:00.
• If the SS was set for OFF, the display will not appear.
• In the event that you descend 10 ft (3 m) deeper than the Stop Depth for 10 seconds during the countdown, or the countdown reaches 0:00, the No Decompression Main screen will replace the SS Main screen which will reappear upon ascent to within 5 ft (1.5 m) deeper than the Safety Stop depth set for 1 second.
• In the event that you enter Decompression during the dive, complete the Decompression obligation, then descend below 30 ft (9 m); the SS Main
will appear again upon ascent to within 5 ft (1.5 m) deeper than the SS depth set for 1 second.
• If the diver ascends to within 3 ft (0.91 m) from the surface for 10 seconds, the SS is to be canceled.
• There is no penalty if you surface prior to completing the SS or choose to ignore it.
If set for Timer On Upon ascending to 20 FT (6 M) for 1 second on a No Deco dive in which Depth exceeded 30 FT (9 M) for 1 second, 1 beep will sound and a Run Timer will appear (if set On) displaying 0:00 (min:sec) until started.
• If the SS was set for Off or On, the Timer display will not appear.
• If you descend deeper than 30 FT (9 M) for 10 seconds, the No Deco Main will replace the Timer screen which will reappear upon ascent to 20 FT (6 M) for 1 second.
• If you ascend above 3 FT (0.91 M) for 10 seconds, or enter Deco, or a High O2 alarm condition occurs (100%), while the SS Timer is active, the
SS Timer will be disabled for the remainder of that dive.
LOW BATTERY WHILE ON THE SURFACE
WARNING: DO NOT dive with a low battery.
Warning Level
• The Veo 4.0 functions continue but the backlight is disabled.
• The battery icon appears solid.
Alarm Level
• Battery icon shall ash once per second for 5 seconds, then the unit will shut off until the battery is replaced.
ashing
LOW BATTERY DURING A DIVE
Warning Level
• The Veo 4.0 functions continue but the backlight is disabled.
• The battery icon appears solid upon entry into Surface Mode.
ALarm Level
• The Veo 4.0 functions continue but the backlight is disabled.
• Upon entry into Surface Mode, the battery icon ashes , then the unit will shut off until the battery is replaced.
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VEO 4.0 OPERATING MANUAL
AUDIBLE/VISUAL ALARM
While operating in Dive or Gauge Mode, the audible alarm will emit 1 beep per second for 10 seconds when alarms strike, unless it is set to Off. During that time, the audible alarm can be acknowledged and silenced by pressing the SELECT button.
An LED warning light, on the front of the housing, is synchronized with the audible alarm and ashes as the audible alarm sounds. It will turn off
when the alarm is silenced. The audible and LED alarms will not be active if the audible alarm is set to OFF (a Set Alarms setting).
Free Dive Modes have their own alarms which emit multiple beeps multiple times which cannot be acknowledged or set to OFF.
Events that emit (10) beeps >> each sound for ½ sec with ½ sec silence between beeps:
• DIVE, GAUGE - Ascent Rate too fast.
• DIVE, GAUGE - Depth Alarm.
• DIVE, GAUGE - Elapsed Dive Time Alarm.
• DIVE - Dive Time Remaining Alarm.
• DIVE - Tissue Loading Bar Graph Alarm.
• DIVE - entry into Decompression.
• DIVE - Conditional Violation.
• DIVE - Delayed Violations 1, 2.
• DIVE, GAUGE - Delayed Violation 3.
• DIVE, GAUGE - entry into Violation Gauge Mode.
• DIVE - PO2 Alarm.
• DIVE - O2 Warning and Alarm.
• DIVE - Gas Switch Alarm.
Events that emit (3) short beeps:
• FREE - CDT Alarm.
• FREE - Elapsed Dive Time Alarm (3 beeps every 30 seconds if set On).
• FREE - Tissue Loading Bar Graph Alarm.
• FREE - Violation, entry into Decompression.
• FREE - DA1 to DA3 Alarms.
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
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DIVE SURFACE MODE
VEO 4.0 OPERATING MANUAL
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
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VEO 4.0 OPERATING MANUAL
ON THE SURFACE BEFORE A DIVE
The Dive Main screen will display the SURF (Surface Time) and the selected FO2 of the breathing gas. The surface time displayed is the time since activation or the surface interval after a dive.
DIVE MAIN
(before a dive)
(more than 10 minutes after a dive)
hr:min
DIVE MAIN
time of day
gas #
gas mix
residual nitrogen
bluetooth on
dive #
DIVE SURF MAIN MENU
To view VEO 4.0 logs, change settings, or switch modes you must navigate through the Surf Main Menu. Enter the menu by pressing the ADV but­ton. When you reach the end of the menu the VEO 4.0 will return to the Dive Surface Main screen. You may hold the ADV button to scroll quickly through the selections. Some screens simply display data. While other screens are lead-ins to sub menus and settings. Press the SEL button to choose menus or options from the Main Menu when available. All Main Menu screens and options will be discussed in the order they appear in the menu below.
ADV
SEL
to Select an option
MAIN MENU
ALT 1 ALT 2 ALT 3 (nitrox only)
FLY/DESAT
PLAN LOG SET F (gas mix) SET A (alarms) SET U (utilities) SET T (time) SET M (mode) HISTORY SERIAL NUMBER back to Main
ADV
SEL
ALT 1 (LAST DIVE)
The ALT 1 screen displays essential data from the last dive. If there has been no dive within the current activation cycle, dashes will display for the max depth and elapsed dive time.
maximum depth
elapsed dive time
ALT 2
The ALT 2 screen displays temperature and current elevation readings.
temperature
elevation
(EL2 - EL7, blank if sea level)
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VEO 4.0 OPERATING MANUAL
ALT 3
The ALT 3 screen displays only after a nitrox dive. It displays the current oxygen saturation level, PO2 Alarm setting, and the current gas mix.
O2 Saturation
Gas #
PO2 Alarm setting
32% O
2
FLY/DESAT
The FLY/DESAT screen displays the Time to Fly and the DESAT (desaturation) countdown. The Time to Fly countdown shall begin counting from
23:50 to 0:00 (hr:min), 10 minutes after surfacing from a dive. The DESAT counter shall provide calculated time for Tissue Desaturation at sea level taking into consideration the CF (Conservative Factor) if it was set on. It shall begin counting down 10 minutes after surfacing from Dive or Free Mode dives counting down from a maximum of 23 to 10 (hr only), then 9:59 to 0:00 (hr:min). When the DESAT countdown reaches 0:00 (hr:min), which will generally occur prior to the FLY countdown reaching 0:00 (hr:min), it will remain on the display as 0:00 until the Fly count down reaches 0:00.
NO PREVIOUS DIVES 10 MIN AFTER A DIVE
hr:min
9:- - displays if time > 9:59
PLAN
This mode calculates dive depth and time limits. To do so, it accounts for any residual nitrogen, oxygen, surface intervals, the programmed gas mix, and PO2 alarm setting. Either NO DEC (No Decompression) or O2 min limits are displayed, depending on whether nitrogen or oxygen levels will be the limiting factor. The time limit will display in minutes.
NOTE: Depths exceeding the MOD (Maximum Operating Depth), if nitrox, or that have less than 1 minute allowed dive time will
not be displayed.
current PO2 Alarm setpoint, blank if FO2 is Air
next item in Main Menu
ADV
SEL
% O2,
current FO2 setpoint
access planner
MOD
to increase depth
ADV
or O2 min
SEL
exit to Main Menu
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VEO 4.0 OPERATING MANUAL
LOG
Pressing the SEL button while viewing the LOG Lead-in screen accesses the dive log. The log stores Information from the latest 24 Dive and/or
Gauge mode dives for viewing. > If no dives are recorded, the message NONE YET 0 DIVE will be displayed in the log. > After exceeding 24 dives, the most recent dive is stored while the oldest is deleted. > Dives are numbered from 1 to 24 starting each time a dive is activated in either Dive (or Gauge) mode. After the post dive 24 hour period has
elapsed and the unit shuts off, the rst dive of the next activation period will be recorded as dive #1.
> I n the event that dive time (DIVE-T) exceeds 999 min, the data at the 999 interval is recorded in the Log upon surfacing of the unit.
NOTE: New data will automatically overwrite the oldest data in memory when the memory becomes full. The Veo 4.0 Log and
Diverlog + Download data is stored separately in different partitions of the memory. The Log only stores a short summary of each dive. Alternately, the Diverlog + Download function stores much larger files for each dive. For this reason, it is normal to see dives stored in the Veo 4.0's onboard Log that have already been overwritten in the Diverlog + Download Partition. If you do not remember to log or download your dives, they will be lost when the memory overwrites. See the Diverlog + Download section of this manual for instructions on downloading dives.
LOG LEAD-IN
blank if DIVE, or GAUGE icon for Gauge dive
LOG PREVIEW
date of dive
time dive started
max tissue loading, blank if Gauge dive
max depth
next item in Main Menu
blank or VIO for a violation
ADV
LOG DATA 1 LOG DATA 2
ADV
LOG DATA 3
SEL
access log
pre dive Surface Interval
hr:min, - : - - if rst dive during
the activation period
max ascent rate
Dive Time, max 999 min
SEL
to Data 2
dive
next dive recorded
lowest temperature
ADV
ADV
dive #
SEL
enter dive record
recorded elevation of dive location, SEA (or EL 2 - EL7)
SEL
to Data 3 or back to Log Preview
highest PO2 reached during the dive
© Pelagic, 2019 Doc. No. 12-5671-r01 (3/20/19)
ADV
SEL
% O
Saturation
2
at end of dive, - - if the dive entered Violation Gauge Mode
gas mix
(% O2)
FO
2
back to Main Menu
19
NOTE: Log Data 3 only displays for nitrox dives; it is
bypassed if the dive was an air dive.
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