SHEARWATER Avelo Mode Watch Instruction Manual
- September 27, 2024
- SHEARWATER
Table of Contents
Avelo Mode Watch
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Specifications
- Model: Shearwater Teric – Avelo Mode
- DOC: 10072-RevA
- Date: 2024-06-17
Product Information
The Shearwater Teric – Avelo Mode is a dive computer capable of
calculating decompression stop requirements. It is an extension of
the Air Integration system found on the Teric dive computer,
offering advanced features for safe diving practices.
Product Usage Instructions
Special Training Requirement
The Avelo system requires special training to operate safely. Do
not use the Avelo dive system or the Shearwater Teric’s Avelo dive
mode without professional training. Visit
www.diveavelo.com for details.
Pre-Dive Preparation
To ensure accurate reporting in Avelo dive mode, turn on your
computer and purge all water from your Hydrotank before each dive.
Always dive with a second source of breathing gas information, such
as an analog SPG.
Tank Valve Check
Before every dive, ensure your tank valve is open by taking a
few breaths from your regulator or purging the regulator’s second
stage while monitoring gas pressure for 10-15 seconds.
FAQ
Q: What should I do if my computer fails during a dive?
A: In case of a computer failure, have a plan on how to handle
the situation. Remember that knowledge, skill, and practiced
procedures are crucial for diving safety.
Q: Why is it important to have a second source of breathing gas
information?
A: Having a backup source of breathing gas information, such as
an analog SPG, is essential in case of discrepancies or failures
with the primary system to ensure a safe end to the dive.
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Operating Instructions
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DANGER
Shearwater dive computers are capable of calculating decompression stop
requirements. These calculations are at best a guess of real physiological
decompression requirements. Even when following computer directions exactly,
there is a risk of decompression sickness causing injury or death. Dives
requiring staged decompression are substantially riskier than dives that stay
well within no-stop limits.
YOU REALLY ARE RISKING YOUR LIFE WITH THIS ACTIVITY.
WARNING
Shearwater computers have bugs. Although we haven’t found them all yet, they
are there. It is certain that there are things that our computers do that
either we didn’t think about, or planned for them to do something different.
Never risk your life on only one source of information. Use a second computer
or tables. If you choose to make riskier dives, obtain the proper training and
work up to them slowly to gain experience.
Your computer will fail. It is not whether it will fail but when it will fail.
Do not depend on it. Always have a plan on how to handle failures. Automatic
systems are no substitute for knowledge and training.
No technology will keep you alive. Knowledge, skill, and practiced procedures
are your best defense (Except for not doing the dive, of course).
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WARNING
The Avelo system requires special training to operate safely. Do not use an
Avelo dive system or the Shearwater Teric’s Avelo dive mode without
professional training. Visit www.diveavelo.com for details.
The Shearwater Avelo mode is an extension of the Air Integration system found
on the Teric dive computer. You must read and understand all the information
and warnings in the Teric’s operating instructions prior to using the Avelo
dive mode.
You must turn on your computer and purge all water from your Hydrotank prior
to each dive for the Avelo dive mode features to report accurately.
Always dive with a second source of breathing gas information such as an
analog SPG. If you lose the ability to track your remaining gas or if multiple
sources of breathing gas information disagree, safely end the dive.
Ensure your tank valve is open prior to every dive. Always take a few breaths
from your regulator or purge your regulator’s second stage while monitoring
your gas pressure for a full 10-15 seconds prior to entering the water to
ensure your tank valve is turned on.
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Conventions Used in this Manual
These conventions are used to highlight important information:
INFORMATION
Information boxes contain useful tips for getting the most out of Avelo Mode
CAUTION
Caution boxes contain important instructions on operating Avelo Mode.
WARNING
Warning boxes contain critical information that may affect your personal
safety.
Notes on this Manual
This manual only covers the features of the Avelo mode system. Unless
otherwise noted, all features behave as they do in other dive modes as
described in the Teric Operating Instructions Manual.
This manual contains cross-references between sections to make it easier to
navigate. Underlined text indicates the presence of a link to another section.
Firmware Version: V30
This manual corresponds to firmware version V30.
Feature changes may have been made since this release and might not be
documented here.
Check the release notes on Shearwater.com for a complete list of changes since
the last release.
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Introduction
When diving Avelo, Shearwater’s Avelo mode makes gas planning easier and gives
you more dive time than using an analog SPG.
When using the Avelo system a diver cannot use cylinder pressure directly as a
measure of remaining gas. The Shearwater Avelo mode makes diving the system
simple by displaying remaining gas as a percentage.
Avelo mode also provides several additional features that make diving the
Avelo system easier and more enjoyable.
Avelo Mode Features
· Gas remaining as % · Hydrotank pressure · Maximum Hydrotank pressure reached
on a dive · Buoyancy calculation during dive · Button shortcut to reset
“buoyancy status” to “neutral” · Workload calculation to show efficiency of
gas usage · Cloud support for Avelo profiles
Caution
This document is not a complete reference or a substitute for professional
training. Read your dive computer’s operating instructions prior to use and
never dive beyond your training. What you don’t know can hurt you.
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Avelo Mode Default Display
Avelo Mode comes pre-configured with the Training Home Screen layout. The
other Home Screen Options will be covered in a later section.
As a quick reference, a diagram of the default display is shown below.
Battery Indicator Depth Dive Mode
No Deco Limit
Max Pressure
Alert Indicator Active Gas
18.3 m6
NDL
% Remain
25min 66%
Max P
261
B A R
T1
172
B A R
! 19:22
21%
Default Avelo Mode Screen Layout
Ascent Rate Gas Remaining Current Tank Pressure Dive Time
Unlike other dive modes on the Teric, Avelo Mode only supports the “Standard”, 4-line layout. The 3-line “Big” layout is not supported.
In Avelo mode, the % Remain field in the top right position cannot be removed. However, the info row home screen can be customized. See page 13 for more information.
The following sections go into detail about each unique Avelo Mode screen element.
Caution
This document is not a complete reference. It only covers features specific to
Avelo Mode. You must read the complete operating instructions for your dive
computer prior to use. There are safety critical elements of your dive
computer that are not covered by this manual that you must understand.
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Detailed Avelo Element Descriptions
There are several screen elements that are unique to Avelo Mode. This section
will go into detail about how each element works.
% REMAIN
The breathing gas (air) remaining as a percentage.
% Remain
66%
Normal Display
This display accounts for water being pumped into and being purged out of the Hydrotank to provide a simple measure of remaining gas.
% Remain
29 %
When % Remain falls below 30% a Reserve Pressure warning will be shown, and this display will change to yellow.
Reserve Warning
% Remain
14%
When below 15% a Critical Pressure warning will be shown, and this Critical Warning
display will change to flashing red.
The 100% point will start at the actual fill pressure detected in the five minutes preceding a dive, before any pump events have been detected. If this pressure is below 200 bar, then 200 bar will be used as the 100% point.
Example 1: A diver’s Hydrotank is filled to 220 bar. When the measured pressure, compensated for pump and purge events, reaches 110 bar, the percent remaining will show 50%. Note that the actual pressure displayed (T1) will be greater than 110 bar at this point due to pump events.
Example 2: A diver’s Hydrotank is filled to 180 bar, so 200 bar is used at the 100% anchor point. At the start of the dive, even before any pump events, the divers % Remain will only show 90%. Pumping may increase the pressure above 200 bar, but the % remaining will still only show 90%. In this case, the percent remaining will show 50% when the measured pressure, compensated for pump and purge events, reaches 100 bar.
WARNING
There is no artificial reserve built into the % Remain number. When this
display element shows 0%, the diver is out of gas. Always proactively manage
your dive to prevent out of gas emergencies. Never allow the % Remain number
to approach zero during a dive.
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MAX P
The maximum gas pressure measured in the Hydrotank during the current dive in
bar or psi. This should be noted after the initial pump cycle for each dive,
since it can be used to manually calculate the Reserve Pressure as 1/3 of the
Maximum Pressure.
T1
The pressure from Transmitter 1 (i.e. the Hydrotank) in bar or psi. Unlike in
standard scuba, this value should not be used directly as a measure of
remaining gas since pumping into or purging water from the Hydrotank affects
this value. If the Max Pressure is known, then the reserve pressure is 1/3 of
the Max Pressure. Or use the % Remain as simple measure of remaining gas that
already factors in pumping water into and purging water from the Hydrotank.
Max P
261
B A R
T1
172
B A R
Do Not Over-Pump
If the absolute tank pressure reaches 295 bar, a “Stop Pump” warning will be
displayed. Do not continue to pump water into the Hydrotank. Continuing to
increase pressure in the Hydrotank may result in a free-flowing regulator.
WORK
The current workload as measured by gas consumption rate in liters per minute
or cubic feet per minute. This value is independent of depth (i.e. it is the
surface adjusted value). Sometimes this value is called RMV (Respiratory
Minute Volume) or SAC (Surface Air Consumption). When buoyancy is optimized
and you are relaxed, workload will be minimized thus extending remaining gas
time.
WORK
16 L min
Hydrotank Size
The diver must select the correct Hydrotank size (8L or 10L) in the Avelo
setup menu before the dive for Work to be calculated correctly as it is
measured in volume per minute and is dependent on the internal volume of the
cylinder in use.
The currently selected Hydrotank size is shown in the top level settings menu
for convenience.
Settings
Dive|Avelo Avelo|10L
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BUOYANCY
An estimate of the buoyant force acting on the diver in kilograms or pounds of
force.
This calculation starts with the parameters entered in the Avelo Buoyancy menu
and then tracks pumping, purging, gas consumption and wet suit compression to
determine the final buoyancy. If this value is more positive or negative than
what can be comfortably managed by the set Tidal Volume, then the value will
display in yellow.
Instructions for setting up the Buoyancy menu can be found on page 16.
BUOY
+0.5kg
Buoyancy within zone of stability
BUOY
+2.2kg
Buoyancy high, Pump recomended
BUOY
-2.1kg
Buoyancy Low, purge recomended
Reset Buoyancy to Neutral
During a dive if you feel you are perfectly neutrally buoyant, then the FUNC
button (top-right) can be used to reset the buoyancy display to zero.
Turn On Your Computer Before The Dive
The diver must turn on their computer and place it in dive mode at least two
minutes before entering the water for Avelo mode functions to operate
correctly. If you rely on the auto-on feature to put the computer in dive mode
when a dive starts, you may miss a pre-dive pump event or the max pressure.
Missing the first pump event will negatively impact the accuracy of the Work
and Buoyancy values. The % Remain feature will continue to be accurate.
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Avelo Mode Info Screens
Info screens allow you to scroll through additional information during a dive.
18.m6
NDL
20min
MAX P
260
B
A R
% REMAIN
74 %
T1
192ABR
16:52
21%
Training Mode Home Screen
18.m6
NDL
% REMAIN
20min 74%
WORK BUOY T1
16 -0.3 192
16:52 21%
Performance Mode Home Screen
The first page of the info row on the Teric is called the home screen. There are two preset home screen options to select from, shown above: Training and Performance. You can also customize the home screen with the data elements that are most important to you. For instructions on setting up the home screen, see page 13.
By default, the Avelo Mode home screen is set to Training.
From the home screen, scroll through the info screens by pressing the INFO (bottom right) button.
When all info screens have been viewed, pressing INFO again will return to the home screen.
Pressing the MENU (bottom left) button will also return to the home screen at any time. Info screens automatically time-out after 10 seconds, returning to the home screen. The compass, tissues, training, performance, and other AI screens will not time out.
When either of the preset home screen options are selected, the other option will be the first info screen when scrolling through info screens.
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18.m6
NDL
% REMAIN
20min 74 %
MAX P
260
B
A R
T1
192ABR
16:52
21%
Return to Main Screen by: ·Pressing MENU button ·Stepping past last screen ·Waiting 10 Seconds (most screens)
WORK BUOY T1
16 -0.3 192
WORK
GTR
16 L min
41
LAST DIVE
30.7m 26:57
N
NE
24
MAX
AVG
103.6ft 43.3ft
CNS
MOD PPO2
11% 271 .21
GF GF99 TTS
35/75 22% 5
TISSUES
Press the INFO button (bottom right), to step through Info Screens
TEMP
21C
BATTERY
49%
mBar NOW mBar SURF
2564 1013
TIME
EOD
2:31 2:43
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Unlocking Avelo Mode
Avelo mode is an optional firmware feature that requires an unlock code that
can be purchased through your local Shearwater dealer. Each unlock code is
tied to a unique serial number and will only unlock the corresponding dive
computer.
Once you have an unlock code for your Teric, the Shearwater Cloud app can be
used to unlock Avelo mode on your dive computer. Connect your dive computer to
Shearwater Cloud and select “Unlock” from the hamburger menu at the top right
of the connect tab.
A prompt will appear where you can enter your 16-digit unlock code to unlock
Avelo mode.
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Avelo Mode Setup
All Avelo mode settings must be configured before the dive as the following
menus are not available underwater.
Selecting Avelo Mode
Once Avelo Mode is unlocked, it can be selected in Settings by going to
Settings > Dive > Dive Mode and selecting Avelo.
Settings
Dive|Avelo Avelo|10L
Settings Menu
Dive
Dive Mode Avelo
Home Screen Training
Dive Settings
Dive Mode
Gauge Freedive Avelo
4 44
Dive Mode
The currently selected dive mode is conveniently shown in grey in the top- level settings menu.
When Avelo Mode is selected, Settings in the Dive Settings menu only impact Avelo mode. So, if you customize your layout in Avelo mode, when you switch back to OC Rec mode, your original settings will be preserved.
Choosing a Home Screen
Home screen options include: · Training (Default) · Performance · Custom
Dive
Dive Mode Avelo
Home Screen Training
Func Button Reset Buoy
Home Screen
Training
Performance
Custom
4 44
If you choose to customize your home screen, all the normal Teric customization options are available in addition to Avelo Mode display elements. See the Teric operating instructions for a complete list of available display elements.
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Reset Buoyancy Function
By default, the Func (top-right) button is set to “Reset Buoy”. This feature
allows you to quickly reset the buoyancy display element to 0 kg when you feel
like your buoyancy is perfect.
This menu can be used to change the function button to any of the other
available functions if you prefer not to use the reset buoyancy feature.
Alternative functions include: · Compass · Deco Plan · Stopwatch · Tag Log ·
No Action
End Dive Delay and Log Rate
Unlike in other modes, the End Dive Delay and Log Rate Settings cannot be
modified in Avelo mode.
End Dive Delay is fixed at 5 minutes. Log Rate is fixed at 5 seconds.
Dive
Home Screen Training
Func Button Reset Buoy
Water Type EN13319
FUNC Button
Reset Buoy
Compass
Deco Plan
Stopwatch
Tag Log
4 44
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Avelo Setup Menu
In Avelo Mode, the AI menu is replaced by an Avelo Setup menu. The top-level
settings menu shows the currently selected Hydrotank size in grey for quick
reference.
Hydrotank Size Selection
The two options are 10L and 8L. It’s important to select the correct Hydro
tank size for the Work display element to be accurate. The % Remain element
does not depend on selecting the correct Hydrotank size.
Transmitter Setup
Transmitter setup is the same as other dive modes on the Teric. Input the
6-digit transmitter serial number into the TX field.
Avelo mode uses the same transmitter as T1 used in other modes.
Units
This setting applies to Avelo display element values only.
Display
MAX P T1 Work Buoy
Metric
bar bar l / min kg
Imperial
psi psi cuft / min lbs
Settings Dive|Avelo Avelo|10L Deco|40/85
Avelo Hydrotank
10L Tx
285817 Units
Metric
Caution
This is not a complete reference. You must read your computer’s operating
instructions to safely use the Air Integration system.
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Buoyancy Menu
The buoyancy menu contains settings for calibrating the buoyancy display
element.
Body Weight: Mass of the diver in kg or lbs. Exposure Suit: Buoyant force of
exposure suit in kg or lbs. Added weight: Extra weight added to the system in
kg or lbs. Tidal Volume: Tidal volume of the diver’s lungs in ml.
Refer to the Avelo training materials for detailed explanations of how to
calculate exposure suit buoyancy and tidal volume.
Avelo Units
Metric Buoyancy
Back
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FAQ
Is Avelo mode available on Shearwater computers other than the Teric?
Avelo mode is currently only available on the Teric dive computer. We hope to
bring the Avelo mode option to other computers in the future.
Does GTR behave the same as it normally would?
Yes. GTR behaves exactly as described in the Teric operating instructions
manual while using Avelo mode.
Where can I find more information about the Avelo system?
Visit DiveAvelo.com for more information.
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Shearwater Research Inc.
Headquarters 10200 Shellbridge Way,
Richmond, BC V6X 2W7
Tel: +1.604.669.9958 info@shearwater.com
www.shearwater.com
www.facebook.com/DiveShearwater
www.youtube.com/shearwaterresearch
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References
- Avelo
- Shearwater Research – Shearwater Research Inc.
- Avelo
- Shearwater Research – Shearwater Research Inc.
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