Uwatec LUNA 2.0 AI User manual

LUNA 2.0 AI
USER MANUAL

2LUNA 2.0 AI USER MANUAL

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LUNA 2.0 AI USER MANUAL
LUNA 2.0 AI USER MANUAL
THE LUNA 2.0 AI DIVE COMPUTER – DESIGNED AND ENGINEERED BY DIVERS FOR DIVERS
Welcome to SCUBAPRO dive computers and thank you for purchasing the LUNA 2.0 AI. You are now the owner of
an extraordinary partner for your dives. This manual provides you with easy access to SCUBAPRO state-of-the-art
technology and the LUNA 2.0 AI’s key features and functions. Should you wish to know more about SCUBAPRO
diving equipment, please visit our website www.scubapro.com.
Before using your SCUBAPRO LUNA 2.0 AI, please read and understand the Read First booklet included in the
package.
WARNING
•The LUNA 2.0 AI has a depth rating of 120m/394ft.
•If 120m/394ft is exceeded, “---“ will appear in the depth eld and the decompression algorithm will not calculate correctly.
•Diving at oxygen partial pressures higher than 1.6bar (corresponding to a depth of 67m/220ft when breathing compressed
air) is extremely dangerous and could lead to severe injury or death.
•Never risk your life on only one source of information. Eventually, every computer has the potential to fail, so do not depend
exclusively upon it and always have a plan for how to handle failures. Use a redundant dive computer, carry backup tables
and depth/time instrumentation.
IMPORTANT
Dive computers provide divers with data; however, they do not provide the knowledge of how this data should be understood
and applied. Dive computers cannot replace common sense! You must therefore carefully read and understand this entire
manual before using your LUNA 2.0 AI.

4LUNA 2.0 AI USER MANUAL
Hereby, Uwatec AG declares that the radio equipment type PAN1740A is in compliance with Directive 2014/53/EU.
The combination of SCUBAPRO LUNA 2.0 AI and SCUBAPRO Smart high pressure transmitter is a personal protective
equipment of category III, in compliance with the essential safety requirements of the European Union Regulation 2016/425.
The notified body no.0474, RINA SpA, Via Corsica 12, I-16128 Genoa, Italy, has completed the EC type-examination to the
combination mentioned above and assured the conformity with the European Standard EN250:2014.
The LUNA 2.0 AI dive instrument is also compliant with the European Union directive 2014/30/EU.
The full text of the EU declaration of conformity is available at www.scubapro.com/declarations-conformity.
Standard EN 13319: 2000
EN13319 is a European diving depth gauge standard. SCUBAPRO dive computers are designed to comply with this standard.
All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of SCUBAPRO.
SCUBAPRO reserves the right to change or improve its products and to make changes to the content of this manual without obligation to notify
any person or organization of such changes or improvements. Go to www.scubapro.com for current updates and supplemental information
concerning the use of this product.
LogTRAK, the Human factor diving and SCUBAPRO are trademarks of Johnson Outdoors Inc.
Android™ is a trademark of Google LLC. Apple®, iPhone®, and Mac®are trademarks of Apple Inc., registered in the U.S. and other countries.
The BLUETOOTH®word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks by Johnson Outdoors is under license.
iOS® is a registered trademark of Cisco Systems, Inc. used under license by Apple Inc. Windows®is a registered trademark of Microsoft
Corporation in the United States and other countries.

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LUNA 2.0 AI USER MANUAL
TABLE OF CONTENTS
1. INTRODUCTION TO THE LUNA 2.0 AI DIVE COMPUTER ................................................................... 8
1.1 Switching on and off the LUNA 2.0 AI ................................................................................................... 8
1.2 Quick reference of the display layout .................................................................................................... 9
1.3 Operating modes ................................................................................................................................. 9
1.4 SCUBAPRO Human Factor DivingTM ................................................................................................... 10
1.5 Button operation ................................................................................................................................ 10
1.6 Water contacts ................................................................................................................................... 11
1.7 Battery ............................................................................................................................................... 12
1.8 Battery Safety Instructions .................................................................................................................. 12
2. LUNA 2.0 AI SETTINGS AND MENUS ON THE SURFACE ................................................................. 13
2.1 Dive settings on surface ..................................................................................................................... 13
2.1.1 Dive mode selection .............................................................................................................. 14
2.1.2 Scuba mode settings ............................................................................................................ 14
2.1.2.1 Water type selection ...................................................................................................14
2.1.2.2 Decompression algorithm selection.............................................................................15
2.1.2.3 Microbubble level selection .........................................................................................15
2.1.2.4 Gradient Factor settings..............................................................................................16
2.1.2.5 Enabling PDIS.............................................................................................................16
2.1.2.6 Enabling predictive multi-gas mode (PMG)..................................................................17
2.1.3 Apnea mode settings ............................................................................................................ 17
2.1.3.1 Total Apnea exercise depth.........................................................................................17
2.1.3.2 Surface Interval Factor (SIF) ........................................................................................17
2.1.3.3 Dual depth alarm ........................................................................................................18
2.1.3.4 Dive depth incremental alarm...................................................................................... 19
2.1.3.5 Dive time interval alarm ...............................................................................................19
2.1.3.6 Surface interval alarm..................................................................................................20
2.1.3.7 Low heart rate alarm ..................................................................................................20
2.1.3.8 Ascent speed alarm ....................................................................................................21
2.1.3.9 Manually starting an Apnea dive (ST. APNEA)..............................................................21
2.1.4 Warning settings ................................................................................................................... 21
2.1.4.1 Dive time warning .......................................................................................................22
2.1.4.2 Dive depth warning .....................................................................................................22
2.1.4.3 Maximum operating depth warning (MOD) .................................................................. 22
2.1.4.4 Setting the visual warning signal .................................................................................23
2.2 General settings ................................................................................................................................. 23
2.2.1 Clock settings ....................................................................................................................... 23
2.2.1.1 Setting UTC................................................................................................................24
2.2.1.2 Setting the time ..........................................................................................................24
2.2.1.3 Setting the date ..........................................................................................................24
2.2.1.4 Time format ................................................................................................................25
2.2.2 User settings ......................................................................................................................... 25
2.2.2.1 Workload ...................................................................................................................25
2.2.2.2 Light-up......................................................................................................................27
2.2.2.3 Light ...........................................................................................................................27
2.2.2.4 Units...........................................................................................................................28
2.2.2.5 Owner information ......................................................................................................28
2.2.2.6 Pair Digital Heart Rate Monitor ...................................................................................29
2.2.2.7 Reset desaturation......................................................................................................29
2.2.2.8 Service information .....................................................................................................29
2.2.3 Sound settings ...................................................................................................................... 30
2.2.3.1 Buzzer ........................................................................................................................30
2.2.3.2 Button beeps..............................................................................................................31
2.3 Gas settings ....................................................................................................................................... 31
2.3.1 Setting gas oxygen content ................................................................................................... 31
2.3.2 PPO2max .............................................................................................................................. 33
2.3.3 Mounting and pairing the high pressure transmitter ............................................................... 34
2.3.4 Nitrox reset time .................................................................................................................... 36
2.3.5 Setting the half tank warning ................................................................................................. 37
2.3.6 Setting the tank reserve alarm ............................................................................................... 37
2.4 Bluetooth ........................................................................................................................................... 37
2.5 Reading the altitude, barometric and temperature values ................................................................... 38

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2.6 Planning a dive ................................................................................................................................... 38
2.6.1 No-stop plan ......................................................................................................................... 39
2.6.2 Decompression plan ............................................................................................................. 40
2.7 Reading the logbook .......................................................................................................................... 41
3. DIVING WITH THE LUNA 2.0 AI ............................................................................................................ 43
3.1 Display information ............................................................................................................................. 43
3.2 Current dive settings .......................................................................................................................... 44
3.3 Display conguration during the dive .................................................................................................. 45
3.4 Diving in SCUBA mode ...................................................................................................................... 45
3.5 Diving in GAUGE mode ...................................................................................................................... 47
3.6 Diving in APNEA mode ....................................................................................................................... 48
3.7 Safety stop timer ................................................................................................................................ 50
3.8 Activating the backlight ...................................................................................................................... 50
3.9 Warnings during diving ....................................................................................................................... 51
3.9.1 Maximum depth .................................................................................................................... 51
3.9.2 CNS O2= 75% ...................................................................................................................... 51
3.9.3 No-stop time = 2 min ............................................................................................................ 51
3.9.4 No-stop time = 0 min ............................................................................................................ 52
3.9.5 L0 no-stop = 2 min ............................................................................................................... 52
3.9.6 Entering decompression ....................................................................................................... 52
3.9.7 Dive time ............................................................................................................................... 53
3.9.8 Half tank ............................................................................................................................... 53
3.9.9 RBT = 3 min ......................................................................................................................... 53
3.9.10 Pressure signal ...................................................................................................................... 54
3.9.11 100/100 no-stop = 2 min ...................................................................................................... 54
3.9.12 Entering GF stops ................................................................................................................. 54
3.9.13 Entering decompression at 100/100 ..................................................................................... 55
3.9.14 MB-level stop missed ............................................................................................................ 55
3.9.15 GF stop missed ..................................................................................................................... 55
3.9.16 MB-level reduced .................................................................................................................. 56
3.9.17 GF increased ......................................................................................................................... 56
3.10 Alarms during diving ........................................................................................................................... 56
3.10.1 Ascent rate ........................................................................................................................... 57
3.10.2 MOD ..................................................................................................................................... 58
3.10.3 CNS O2= 100% .................................................................................................................... 58
3.10.4 Tank reserve reached ............................................................................................................ 58
3.10.5 Missed decompression stop ................................................................................................. 59
3.10.6 RBT = 0 min ......................................................................................................................... 59
3.10.7 Low battery alarm ................................................................................................................. 59
3.11 SOS ................................................................................................................................................... 60
3.12 No-dive warning ................................................................................................................................. 60
3.13 No-y time .......................................................................................................................................... 60
3.14 Diving with MB-levels ......................................................................................................................... 61
3.15 PDIS (Prole-Dependent Intermediate Stops) ...................................................................................... 62
3.15.1 Introduction to PDIS .............................................................................................................. 62
3.15.2 How does PDIS work? .......................................................................................................... 63
3.15.3 Diving with PDIS .................................................................................................................... 63
3.16 Diving with Gradient Factors (GF) ....................................................................................................... 64
3.17 Altitude diving ..................................................................................................................................... 65
3.17.1 Altitude warning after a dive .................................................................................................. 65
3.17.2 Altitude and the decompression algorithm ............................................................................. 65
3.17.3 Prohibited altitude ................................................................................................................. 66
3.17.4 Decompression dives in mountain lakes ................................................................................ 66
3.18 Diving with Nitrox ................................................................................................................................ 66
3.19 Diving with multiple gas mixtures ........................................................................................................ 67
3.19.1 Switching gas mixture during the dive ................................................................................... 68
3.19.2 Switching back to a gas mixture with lower oxygen concentration ........................................ 69
3.19.3 Gas switch not carried out at the planned depth ................................................................... 69
3.19.4 Delayed gas switch ............................................................................................................... 69
3.19.5 Submerging below the MOD after a gas switch ..................................................................... 69
3.20 Setting bookmarks ............................................................................................................................. 70
4. LUNA 2.0 AI ACCESSORIES ................................................................................................................. 70
4.1 Silicone protection cover .................................................................................................................... 70

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4.2 Bungee arm straps ............................................................................................................................. 70
4.3 Wireless high pressure transmitter ...................................................................................................... 71
4.4 SCUBAPRO Digital Heart Rate Monitor .............................................................................................. 71
4.5 Bluetooth USB dongle ........................................................................................................................ 72
5. INTERFACES FOR THE LUNA 2.0 AI AND AN INTRODUCTION TO LOGTRAK ............................... 72
5.1 Establishing Bluetooth communication ............................................................................................... 72
5.2 SCUBAPRO LogTRAK ....................................................................................................................... 73
5.2.1 SCUBAPRO LogTRAK desktop version ................................................................................ 73
5.2.2 SCUBAPRO LogTRAK 2.0 mobile application ....................................................................... 74
6. TAKING CARE OF YOUR LUNA 2.0 AI ................................................................................................. 74
6.1 Technical information .......................................................................................................................... 74
6.2 Maintenance ...................................................................................................................................... 75
6.3 Updating the rmware of your LUNA 2.0 AI ........................................................................................ 75
6.4 Replacing the battery in the LUNA 2.0 AI ............................................................................................ 77
6.5 Replacing the battery in the Smart+ PRO high pressure transmitter .................................................... 78
6.6 Replacing the battery in the Digital Heart Rate Monitor ....................................................................... 78
6.7 Screen protector ................................................................................................................................ 79
6.8 Warranty ............................................................................................................................................. 80
7. COMPLIANCE ........................................................................................................................................ 80
7.1 CE regulatory notices ......................................................................................................................... 80
7.1.1 EU Radio Equipment Directive ............................................................................................... 80
7.1.2 EU Depth Gauge Standard .................................................................................................... 80
7.1.3 EU Electromagnetic Compatibility Directive ........................................................................... 80
7.1.4 EU Declaration of Conformity ................................................................................................ 80
7.2 FCC & ISED regulatory notices ........................................................................................................... 80
7.2.1 Modication Statement ......................................................................................................... 80
7.2.2 Interference Statement .......................................................................................................... 80
7.2.3 Wireless Notice ..................................................................................................................... 80
7.2.4 FCC Class B Digital Device Notice ........................................................................................ 81
7.2.5 CAN ICES-3 (B) / NMB-3 (B) ................................................................................................. 81
7.3 Date of manufacture ........................................................................................................................... 81
7.4 Manufacturer ...................................................................................................................................... 81
7.5 Markings ............................................................................................................................................ 82
8. GLOSSARY ............................................................................................................................................. 83

8LUNA 2.0 AI USER MANUAL
1. INTRODUCTION TO THE LUNA 2.0 AI DIVE COMPUTER
There are two versions of the LUNA 2.0, and in the following chapters this user manual describes the LUNA 2.0 AI,
the version with air integration and heart rate module.
The LUNA 2.0 AI is a sleekly designed and ergonomically shaped dive computer with wireless air integration and
heart rate and skin temperature monitoring, selectable ZH-L16 ADT MB PMG and ZH-L16C+GF PMG algorithms,
user updateable rmware, user replaceable battery, high contrast black and white matrix-segment display, and
Bluetooth low energy interface.
1.1 Switching on and off the LUNA 2.0 AI
IMPORTANT
The LUNA 2.0 AI is delivered in deep sleep mode where the display is off. You must activate it with a long-press of both left and
right buttons before the rst dive.
After being woken up from deep sleep the LUNA 2.0 AI can be switched on manually, by simultaneously pushing
and holding the left and right buttons.
When switched on the following screen will be shown:
After switching on, the display shows the following information:
• dive computer name
• date
• day of week
• battery status
• temperature
• time of day
• selected dive mode (diver icon)
This is referred to as the surface screen.
In the surface screen, if there is remaining saturation from the last dive or from a change of altitude, the LUNA 2.0
AI may indicate the “Do not y” icon, “Do not dive” icon or “Altitude” icon or a combination of the icons depending
on the situation.
In the above screen the bar in the right side of the display represents the tissue saturation:
• 6 bars = full saturation
• No bar = desaturation complete
FNOTE: When the LUNA 2.0 AI is in a state of rest, no information is displayed but the atmospheric pressure
continues to be monitored.

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Without active use the LUNA 2.0 AI’s display automatically reverts to the surface screen, and after 5 minutes the
computer switches off. You can also turn off the LUNA 2.0 AI manually from the surface screen by a long-press of
the left button.
FNOTE: After turning the LUNA 2.0 AI on for the rst time, do not turn it off manually but rather wait until it
switches off automatically.
1.2 Quick reference of the display layout
m
ft
MAX
Ba�ery icon
Do not fly icon
Do not dive icon
Al�tude symbol
Dive �me
SOS dura�on
No-fly �me
Temperature
O2 mix
Time of day
Display matrix area
Dive mode
Alarm / Warning symbol
Water detec�on symbol
Dive depth
Al�tude classes
CNS%
Time format AM/PM
No-dive �me
Ascent / Descent symbol
Heart rate
Heart rate symbol
Tank pressure
RBT
Pressure Transmi�er signal
Satura�on / Ascent speed bar
No-stop �me (NST)
Altitude symbol
Display matrix area
Do not y icon
Dive time
SOS duration
No-y time
Battery icon
Saturation / Ascent speed bar
Dive mode
Alarm / Warning symbol
Heart rate symbol
Dive depth
No-dive time
Heart rate
Temperature
O2 mix
CNS%
Tank pressure
Pressure Transmitter signal
Time format AM/PM
Water detection symbol
Time of day
Altitude classes
RBT
No-stop time (NST)
Ascent / Descent symbol
Do not dive icon
The diver symbol in the image above represents the selected dive mode as follows:
SCUBA mode
APNEA mode
GAUGE mode
1.3 Operating modes
The LUNA 2.0 AI has 3 operating modes:
• Sleep mode. In this mode the display is off, but the LUNA 2.0 AI still updates desaturation and monitors
ambient pressure for altitude changes, etc. This mode is activated automatically at the surface after 5 minutes
without operation.
• Surface mode. After a dive or when manually activated, the display is on, and you can change settings or
operate the LUNA 2.0 AI with its buttons.

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• Dive mode. This mode is activated when the computer reaches a depth of 0.8m/3ft or more. In this mode the
LUNA 2.0 AI monitors depth, time, and temperature. Decompression calculations are performed in this mode.
1.4 SCUBAPRO Human Factor DivingTM
The LUNA 2.0 AI has patented underwater Heart Rate, Skin Temperature and Breathing monitors. These features
will customize every dive based on your body reactions and provide you with more data that enhances your diving
experience and helps you to become a more advanced diver.
To learn more about the physiology of the SCUBAPRO Human Factor DivingTM, see the booklet: “HEARTRATE
MEASUREMENT FOR BETTER WORKLOAD ASSESSMENT,” Dr. T. Dräger, Dr. U. Hoffmann, 2012
www.scubapro.com.
F
NOTE: Refer to chapter Workload to learn how to enable the LUNA 2.0’s heart rate monitor function.
1.5 Button operation
The LUNA 2.0 AI’s features are accessed and controlled with 2 pushbuttons. Operation of these pushbuttons is
divided into 2 methods: “press” and “press-and-hold” (for 1 second) – also referred to as a “long-press”. Each
method allows you to access different computer functions.
On the surface:
Long-press left and
right buttons
Long-press left
button
Short press left
button
Long-press right
button
Short press right
button
Switch on the dive
computer from sleep
mode
From surface screen
switch off dive
computer
Scroll up in menu
structure
Enter main menu and
submenus
Scroll down in menu
structure
Activate backlight Cancel setting or
selection
Decrease value
/ scroll through
settings options
Confirm setting or
selection
Increase value / scroll
through settings
options
Return from menus
and submenus
Switch to previous
screen in matrix area
(e.g. after a dive
there are multiple
selectable screens)
Switch to next screen
in matrix area (e.g.
after a dive there are
multiple selectable
screens)
From surface screen:
access current dive
settings

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1.6 Water contacts
The water contacts allow the LUNA 2.0 AI to automatically turn on the moment it senses the presence of water.
This means that you can jump in the water at any time without having to worry whether the computer is turned
on or not. The water contacts can be found near the top left and right corners of the display, as pointed out in the
image below.
F
NOTE: When replacing the protection foil on the LUNA 2.0 AI’s display, take care not to cover the water
contacts!
If the dive is not started within 5 minutes of activating the water contacts, the LUNA 2.0 AI will automatically switch
off again.

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1.7 Battery
The LUNA 2.0 AI uses a user-replaceable CR2450 type battery. Please refer to chapter Replacing the battery in
the LUNA 2.0 AI to learn how to replace the dive computer’s battery.
The battery capacity is constantly displayed on the LUNA 2.0 AI’s surface screen. When the battery is approaching
a critical discharge level the LUNA 2.0 AI will warn you by a blinking battery symbol. The LUNA 2.0 AI’s intelligent
battery algorithm will limit some functions as you near the end of the battery’s life. See the table below for battery
status and corresponding function limitations.
Battery icon Battery status Function limitations
Fresh battery none
Battery ok for diving none
Battery ok for diving none
Weak battery, change to fresh Backlight not operating
diving not recommended
Completely used battery, change to fresh
LUNA 2.0 AI may make a reset any time
and remain off
Dive will not start
WARNING
Starting a dive when the battery symbol is blinking can cause the computer to fail during the dive! Replace the battery before
any diving activity if the blinking battery symbol appears. When the battery symbol is blinking with one bar left the LUNA 2.0 AI
cannot be used for diving until a fresh battery is installed.
WARNING
The LUNA 2.0 AI will not start a dive if the battery has reached the critical level indicated by the battery empty warning. In this
state the LUNA 2.0 AI cannot be used for diving.
1.8 Battery Safety Instructions
• Do not ingest the battery, chemical burn hazard!
• This product contains a coin/button cell battery.
• If the coin/button cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to
death.
• Keep new and used batteries away from children. If the battery compartment does not close securely, stop
using the product and keep it away from children.
• If you think batteries might have been swallowed or placed inside any part of the body, seek immediate
medical attention.
• Do not expose the product or battery to excessive heat, including direct sunlight or fire. Do not store or use
inside cars in hot weather, where it can be exposed to high temperatures.

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2. LUNA 2.0 AI SETTINGS AND MENUS ON THE SURFACE
In this chapter, the surface settings are described. These settings will allow you to personalize your LUNA 2.0 AI
as desired.
The menu structure of the LUNA 2.0 AI is arranged as seen in the below chart:
Time & Date
Water
Decoalgo
MB-Level
or
G Factor
PDIS
Scuba
PMG
Mode
Scuba
Gauge
Apnea
Altimeter
Planner
Logbook
Bluetooth Gas
Gas Mix Set Gas 1 Set Gas 2 Set Gas 3
PPO2max
Pairing
O2 Reset
Half Gas
PPO2max 1 PPO2max 2 PPO2max 3
Apnea
Total Ex
SIF
Depth
Dive Inc
Dive Int
Surf Int
Low HR
Speed
St. Apnea
Dive Time
Depth
MOD
Light
Warning
Set UTC
Set Time
Set Date
Format
Clock
Buzzer
Sound
Button
Workload
Light- up
Light
Units
Owner
D-HR belt
Settings
User
Desat
Service
Dive
Reserve
Time & Date
In each menu the current selection will be highlighted (black text on white background) and will stay in the middle
of the screen as you scroll up or down.
Selecting “RETURN” in a menu or submenu has the same function as a long-press of the left button; it will return
you to the previous menu or submenu or from the main menu to the surface screen.
F
NOTE: Depending on the selected decompression algorithm, the LUNA 2.0 AI will either display MB-level or
G Factor settings in the SCUBA submenu.
F
NOTE: The menus Workload and PDIS are only available if the adaptive decompression algorithm is selected.
2.1 Dive settings on surface
In this menu you can set your dive-related preferences, like selecting dive mode, choosing the decompression
algorithm, or setting warnings and alarms.

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2.1.1 Dive mode selection
The menu Mode allows you to select your preferred dive mode: APNEA, SCUBA or GAUGE mode.
F
NOTE: GAUGE and APNEA modes do not track tissue saturation so there is a locking interval before it is
possible to change to SCUBA mode. In GAUGE mode the locking interval is 48h after the last dive. In APNEA
mode there is a 12h locking interval with shallower than 5m/16ft dives, and a 24h locking interval with deeper
than 5m/16ft dives.
2.1.2 Scuba mode settings
A set of SCUBA related settings are grouped in this menu.
2.1.2.1 Water type selection
The LUNA 2.0 AI determines depth by measuring pressure using water density as a constant. A 10m/33ft depth in
salt water corresponds approximately to 10.3m/34ft in fresh water. In this menu you may select either salt or fresh
water.
F
NOTE: This setting will adjust the depth for all dive modes: SCUBA, GAUGE and APNEA.

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2.1.2.2 Decompression algorithm selection
In this menu you can choose your preferred decompression algorithm. The LUNA 2.0 AI offers the ZH-L16 ADT MB
PMG and ZH-L16C+GF PMG algorithms. The algorithm selection needs to be conrmed with the safety code 313.
WARNING
Diving with the Gradient Factor algorithm requires advanced know-how about decompression theories, their suitability for the
planned dives and matching to your body. Wrong values can lead to decompression sickness, permanent injury or death.
2.1.2.3 Microbubble level selection
Here you may select the preferred Microbubble (MB) level that you want to follow during your dives. Level 5 is the
most conservative, Level 0 is the least conservative.
F
NOTE: The menu MB-LEVEL and the settings related to microbubble levels are only active while the ZH-L16
ADT MB PMG algorithm is selected in the DECOALGO menu.
F
NOTE: See chapter Diving with MB-levels to learn more about diving with the adaptive algorithm.

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2.1.2.4 Gradient Factor settings
Here you may select the preferred Gradient Factor setting that you want to follow during your dives. GF low can be
set from 5 to100 and GF high from 50 to100.
F
NOTE: The menu GFACTOR and the settings related to gradient factors are only active while the ZH-L16C+GF
PMG algorithm is selected in the DECOALGO menu.
F
NOTE: See chapter Diving with Gradient Factors (GF) to learn more about diving with the GF algorithm.
2.1.2.5 Enabling PDIS
SCUBAPRO dive computers feature Prole-Dependent Intermediate Stops (PDIS) which can be turned on or off in
this menu.
See chapter PDIS (Prole-Dependent Intermediate Stop) to learn more about this feature.
F
NOTE: The PDIS setting is only available when the adaptive algorithm (ZH-L16 ADT MB PMG) is selected in the
menu DECOALGO.

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2.1.2.6 Enabling predictive multi-gas mode (PMG)
Predictive multi-gas (PMG) mode enables the use of multiple tanks (up to 3 tanks).
See chapter Diving with multiple gas mixtures to learn more about how to use this feature.
2.1.3 Apnea mode settings
A series of APNEA related settings are grouped in this menu.
2.1.3.1 Total Apnea exercise depth
To provide a scale of total pressure changes during an APNEA dive session, the LUNA 2.0 AI includes a total depth
counter. Using the pushbuttons you can set the total depth counter from 100m/300ft to 1000m/3301ft. When your
depth total has been reached the LUNA 2.0 AI noties you at the surface with an audible tone and a blinking “no
dive” symbol to let you know it is time to end the session and take a break.
2.1.3.2 Surface Interval Factor (SIF)
APNEA diving organizations provide various recommendations regarding surface intervals between dives based on
dive times or depths. The LUNA 2.0 AI integrates a surface interval counter which employs simple multiplication for
determining the surface interval in seconds. The LUNA 2.0 AI uses the following formula to make this calculation:
Surface interval before the next dive = pressure (depth) * square root of dive time * SIF.

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As a reference, a few values are listed in the following table:
DIVE DEPTH DIVE SURFACE INTERVAL
m ft seconds seconds
(SIF = 5)
seconds
(SIF = 20)
10 30 40 63 253
10 30 60 77 309
20 60 60 116 464
30 90 80 178 716
40 120 90 237 949
F
NOTE: The actual depth and time are calculated during the ascent and descent. This is not presented in the
table above.
The SIF can be set from 5 to 20 or disabled with the OFF setting.
2.1.3.3 Dual depth alarm
In initial factory settings the dual dive depth alarm is switched off.
Once you have enabled this feature by selecting “AUDIBLE” the rst depth setting will be shown.
Both depth alarms can be set from 5 to 100 meters (20 to 330 feet) in 1m/5ft increments. By long-pressing the right
button the rst value is conrmed, and the second depth can be adjusted.

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English
LUNA 2.0 AI USER MANUAL
In the upper left section of the screen, the depth of the rst alarm is displayed.
2.1.3.4 Dive depth incremental alarm
In initial factory settings the dive depth incremental alarm is switched off.
You may select the alarm value from 5 to 100m (20 to 330ft) in 1m/5ft increments, and the direction can be selected
as UP/DOWN/BOTH. After selecting the direction, the depth can be set.
2.1.3.5 Dive time interval alarm
In this menu you may enable or disable the dive time interval alarm by choosing AUDIBLE or OFF. By selecting
AUDIBLE you can set the interval from 15 seconds up to 10 minutes in 15 second increments.

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2.1.3.6 Surface interval alarm
In this menu you may enable or disable the surface interval alarm by choosing AUDIBLE or OFF. By selecting
AUDIBLE you can set the interval from 15 seconds up to 10 minutes in 15 second increments.
2.1.3.7 Low heart rate alarm
The LUNA 2.0 AI can trigger an alarm if your heart rate drops below a set level.
In this menu you may enable or disable the low heart rate alarm by choosing AUDIBLE or OFF. By selecting
AUDIBLE you can select the interval from 25 to 100 beats per minute in 1 bpm increments.