UTC UDI-14 User manual

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UDI-14™ User Manual
This manual serves U-14 LCD and OLED versions.
Some screens that appear in LCD version are not presented
in OLED version (that is more advanced)
Protected by patents no. 6125080; 6130859; 6272072
in the US and in other countries
Version: 17.0 April .2019

2
Disclaimers
LIABILITY DISCLAIMER
As it is true of every device of diving equipment, including all dive computers, underwater navigation
systems and other underwater equipment, the Underwater Digital Interface 14 TM (UDITM) abilities are not
limitless. There are certain limitations and restrictions of which you must be aware and certain precautions
you must take when using the UDI-14TM. Please read carefully all warnings in this document and
disclaimers in each specific chapter of the user manual.
The UDI-14TM is a computation hardware device combined with software applications that implements a
dive computer, digital compass, navigation or tracking after acoustical signals, text messages and alert
signal communication. The UDI-14TM combines all these applications in one unit.
The UDI-14TM is not a primary device but only an aid to send and receive text messages, to be used as
an aid in navigation or tracking after an acoustical signal, as an aid for digital compass and as an aid to
send and receive emergency signals. The UDI-14TM is not a device of life support gear. As such, it
is unlikely that you will be hurt by the instrument itself any more than you might by a dive computer or
any other object of similar shape, size and weight. The main danger in the use of UDI-14TM over-reliance
on the information it provides. As an electronic system it might fail spontaneously and unexpectedly due
to component, batteries or software failure. As an acoustical device based system, it can fail at any time
due to changing environmental (acoustic) conditions or internal damages of the acoustical antenna.
By purchasing or using the UDI-14TM system, it is agreed and understood that in no event will Underwater
Technologies Center Ltd (UTC) or any of their representatives be held liable for any personal injuries or
death or damages to property resulting from its operation, or for any other damages whether direct,
indirect, or consequential even if UTC has been advised of such actual or potential damages. UTC products
are authorized for use only by certified, recreational divers who have maintained a sufficient level of
knowledge and skill proficiency through a combination of formal training, ongoing study and experience.
The user must understand that the product is liable to sudden failure.
Underwater operations are inherently dangerous, and proper safety procedures demand that you never
rely solely on just the UDI-14TM or any other single instrument, method or mechanism for human
safety or the safety of property.
REMEMBER - YOU ARE RESPONSIBLE FOR YOUR OWN SAFETY.
DIVE COMPUTER DISCLAIMER
As you probably know and it is true for every device of diving equipment, including all dive computers,
underwater and other underwater equipment, the Underwater Digital Interface 14 TM (UDI-14TM) abilities
are not limitless. There are certain limitations and restrictions of which you must be aware and certain
precautions you must take when using the UDI-14TM as a dive computer. Please read carefully all warnings
in this chapter and this disclaimer.
The UDI-14TM is a computation hardware device combined with software ("SOFTWARE") applications.
The dive computer is implemented with software and sensors (such as depth sensor and related electronic
components). The UDI 14TM uses the Reduce Gradient Bubble Model, an algorithm that was developed by
Dr. Bruce Wienke from the Los Alamos Institute (United States); the algorithm is used by other dive
computers too.

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The UDI-14TM is not a primary device but only an aid to calculate along the dive the time and depth and
to suggests how your planed dive meets the actual dive. The UDI-14TM is not a device of life support
gear and should not be used as a device for life support.
Gauge Mode - The UDI 14TM enables the diver to disable the dive computer and to use it as a
communicator and navigation based its internal compass. Nevertheless, time and depth are presented on
the screen only for assistance, thus the diver should take in considerations that he/she must use a dive
computer or diving tables. When the RGBM dive computer is again enabled, the diver must ensure that
he/she did not dove for the last 24 hours (otherwise the calculations and the presented figures are wrong
and might cause severe results such as injuries or death).
The main danger in the use of UDI-14TM is over reliance on the information provided by it. As lies in an
electronic system it might fail spontaneously and unexpectedly due to component, batteries, incorrect
charging or software failure. In addition the UDI-14™ also contains acoustical functions; hence, as an
acoustical device, it can fail at any time due to changing environmental (acoustic) conditions.
By purchasing or using the UDI-14TM system, it is agreed and understood that in no event will Underwater
Technologies Center Ltd (UTC) or any of their representatives be held liable for any personal injuries or
death or damages to property resulting from its operation, or for any other damages whether direct,
indirect, or consequential even if UTC has been advised of such actual or potential damages. UTC products
are authorized for use only by certified, recreational divers who have maintained a sufficient level of
knowledge and skill proficiency through a combination of formal training, ongoing study and experience.
The user must understand that the product is liable to sudden failure.
THE SPECIFICATIONS AND INFORMATION REGARDING THE DIVE COMPUTER IN THIS MANUAL ARE
SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS
IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF
ANY PRODUCT.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF UTC
ARE PROVIDED “AS IS” WITH ALL FAULTS. UTC DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE
PRACTICE. IN NO EVENT SHALL UTC BE LIABLE FOR ANY DIRECT OR INDIRECT, SPECIAL,
CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INJURY, DEATH, INCLUDING, WITHOUT LIMITATION,
LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS
DIVE COMPUTER, EVEN IF UTC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Underwater operations are inherently dangerous, and proper safety procedures demand that you never
rely solely on just the UDI-14TM or any other single instrument, method or mechanism for human
safety or the safety of property.
BATTERIES DISCLAIMER
Lithium Ion Batteries can catch on fire. The UDI-14™ uses Lithium Ion batteries; therefore it should NOT
be left unattended while being charged as THEY CAN CATCH ON FIRE. Proper precautions should be taken
before charging Lithium ion batteries such as having a fire extinguisher ready and placing the batteries in
a fire safe container.

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THE UDI-14™ IS NOT A TOY AND SHOULD BE HANDLED WITH GREAT CARE.
Lithium Polymer Charging, Handling, Safety Information
Charging:
Lithium Polymer and Lithium Ion batteries have specific charging requirements and ONLY the chargers
rated for these cells may be used. The best charger for the UDI-14™ is provided in the pack that you
purchased. Other chargers may alter the settings and can damage cells or cause a fire due to over-voltage
charging of cells. We recommend that you use only the charger that was provided with the UDI-14.
Lithium Polymer Lithium Ion cells are a tremendous advance in battery technology for electronic devices.
However, due to the chemistry of lithium cells, there is a possibility of fire if charging is not properly done.
It is unavoidable due to the nature of lithium itself. This is no different from many things we use in daily
life –knives, kitchen cleaners, automobiles, for a few examples –which are inherently dangerous, but
which can be used very safely by adhering to simple rules and precautions.
Care should be taken to charge on a fireproof surface, such as brick or in a hot (warm) environment.
Do not charge the UDI-14™ when lying on an ignitable surface.
If you left the UDI-14™ in a warm environment or open to sun light, DO NOT CHARGE IT, wait until it will
be cooled to a temperature of less than 30 centigrade.
Do not charge batteries near flammable items or liquids
Keep a dry fire extinguisher nearby - or a large bucket of dry sand, which is a cheap and effective
extinguisher.
Do not charge inside an automobile, especially while driving.
The UDI-14™ should NEVER be left unattended while charging.
Handling Cautions:
New cells may have a high initial charge, and care must always be taken to insure that the cap of the
UDI-14™ is completely sealed. DO NOT REPLACE BATTERIES. If the batteries performances are low,
please send it to the authorized dealer for repair or replacement.
Charging cycles:
The Batteries should work in good condition for approximately 300 charging cycles. We strongly
recommend that every year you'll send the UDI-14™ for batteries test in order to measure their stability
and charging cycles. Please remember, every charging cycle shorten the batteries lifetime and there is an
ageing process with the Lithium chemistry, thus, it is important to safely dive with batteries that will enable
you to complete the dive.
COMPASS DISCLAIMER
The UDI-14™contains 3-D Magneto Impedance sensor. Combined with software, it generates the North
magnetic direction. Common sense must be used at all times when navigating, therefore it should only be
considered as aids to navigation. The UTC' policy of continuous improvement may result in changes to
product specification without prior notice. It is advised to visit www.utc-digital.com from time to time and
to download updates for new algorithm and compensation factors for this sensor.
This compass is intended for recreational dive use only; it should not be used for industrial or professional
measurements. The compass' accuracy is highly dependent on the environment, for example, soft or hard
metal will highly alter the real measurement. Thus, it is advised not to use the compass in the vicinity of
any metals. UTC does not assume any responsibility for losses or claims by third parties that might arise
through the use of this compass.

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PRESET LISTS DISCLAIMER - TABLE TAG
Please ensure that prior to any dive, all UDI-14™ devices and boat units, in the same network, include
the same user list and messages list. Text messaging communications will only function properly if those
lists are identical.
To ensure that the lists are identical, each UDI-14™ has a Table Tag value, which is a unique code for
each specific UDI-14™ lists.
Make sure that every UDI-14™ device and boat unit (in the same network) has the same Table Tag value.
The Table Tag value is displayed in the About UDI screen. See also About UDI-14™ on page 25 (wrist
unit) and page 47 (boat unit)
License to use the Software
Notwithstanding anything herein to the contrary, the purchaser and/or user of the UDI-14TM system shall
not obtain any intellectual property right in any the UDI-14TM system or any part thereof, other than the
limited right to use it. The purchaser and/or user of the UDI-14TM system shall not have, and shall not
acquire, in any way, any intellectual property right in the UDI-14TM system. The UDI-14TM system shall
not be deemed to have been produced as work for hire and any intellectual property right with respect
thereto shall remain exclusively with UTC. For the purpose hereof, intellectual property includes, inter
alia, any property in and rights under copyright, patents, conceptual solutions and inventions (whether
patentable or not), circuit layout rights, design rights, designs, database rights, trade names, trademarks,
service marks, methodologies, ideas, processes, methods, tools and know-how, and/or any other types of
intellectual property rights. The purchaser and/or user of the UDI-14TM system may not and shall not
permit, abet or aid others to translate, reverse engineer, decompile, disassemble, update or modify all or
any part of the UDI-14TM system.

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Contents
UDI-14™ User Manual ...........................................................................................................................................1
This manual serves U-14 LCD and OLED versions. ................................................................................................1
Some screens that appear in LCD version are not presented in OLED version (that is more advanced) ...............1
Protected by patents no. 6125080; 6130859; 6272072 in the US and in other countries ....................................1
Version: 17.0 April .2019Disclaimers .....................................................................................................................1
LIABILITY DISCLAIMER ........................................................................................................................ 2
DIVE COMPUTER DISCLAIMER .............................................................................................................. 2
BATTERIES DISCLAIMER ...................................................................................................................... 3
Lithium Polymer Charging, Handling, Safety Information ..................................................................... 4
Charging:.................................................................................................................................... 4
Handling Cautions: ...................................................................................................................... 4
Charging cycles: .......................................................................................................................... 4
COMPASS DISCLAIMER......................................................................................................................... 4
PRESET LISTS DISCLAIMER - TABLE TAG .......................................................................................... 5
License to use the Software .................................................................................................................. 5
Contents ................................................................................................................................................................6
Introduction ...........................................................................................................................................................8
Safety ....................................................................................................................................................................9
Battery saving and water sensor........................................................................................................ 9
Before every dive ................................................................................................................................. 9
UDI-14™ unit.......................................................................................................................................................10
Unit Description ..................................................................................................................................10
Using the quick connector ....................................................................................................................11
Charging the UDI-14™.........................................................................................................................11
Connecting the UDI-14™ to the PC .......................................................................................................12
Using the UDI-14™..............................................................................................................................................13
Turning UDI-14™ On and Off ...............................................................................................................13
Scrolling the menus.........................................................................................................................13
UDI-14™ main menu ...........................................................................................................................................14
Setting up the UDI-14™......................................................................................................................................15
Gauge mode...................................................................................................................................16
Enable/Disable Gauge mode ........................................................................................................16
RGBM Setup ...................................................................................................................................18
Entering/Exiting RGBM Setup mode..............................................................................................18
Water ........................................................................................................................................19
Altitude......................................................................................................................................19
Nitrox ........................................................................................................................................19
RGBM Model ..............................................................................................................................19
Deep stops.................................................................................................................................20
Dive Plan ...................................................................................................................................20
New diver ..................................................................................................................................21
PC Connection ................................................................................................................................22
Network Setup................................................................................................................................22
UDI-14™ Setup...............................................................................................................................24
Clock .........................................................................................................................................24
Audio ........................................................................................................................................24
Backlight....................................................................................................................................24
LED Control / this screen exist only in LCD version ........................................................................24
Contrast ....................................................................................................................................25
Units .........................................................................................................................................25
About UDI-14™..........................................................................................................................25
Revert to factory settings: ...........................................................................................................25
Using the Dive computer .....................................................................................................................................26
Surface display ...................................................................................................................................26
Underwater display..............................................................................................................................26
Dive computer parameters ...................................................................................................................27
Reviewing RGBM setup and viewing additional data ...........................................................................28

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Abnormal conditions........................................................................................................................29
Low battery prior to a dive ..........................................................................................................29
Low battery during dive ..............................................................................................................29
Empty battery during dive ...........................................................................................................29
Fast ascent ................................................................................................................................30
Safety stop and Deco stop violation..............................................................................................30
Severe decompression violation ...................................................................................................30
Using the Compass..............................................................................................................................31
Sending and receiving text messages....................................................................................................31
Sending a message.....................................................................................................................32
Viewing last message..................................................................................................................32
Receiving a message...................................................................................................................33
Navigation to a target..........................................................................................................................33
Navigation mode ........................................................................................................................34
Using the Navigation display ........................................................................................................34
SOS Signals ........................................................................................................................................34
Remote homing..........................................................................................................................35
Remote SOS...............................................................................................................................36
Mask Homing .............................................................................................................................36
Care and maintenance .........................................................................................................................37
Revert to factory setting ......................................................................................................................37
Base [boat] unit ...................................................................................................................................................38
Charging the UDI-14™ boat unit...........................................................................................................39
Connecting the UDI-14™ boat unit to the PC .........................................................................................39
Turning UDI-14™ boat unit On and Off .................................................................................................40
Scrolling the menus.........................................................................................................................40
UDI-14™ Boat unit main menu.............................................................................................................40
Sending and receiving text messages....................................................................................................40
Sending a message.....................................................................................................................41
Viewing last message..................................................................................................................42
Receiving a message...................................................................................................................42
Receiving SOS Signals .........................................................................................................................42
Remote SOS...............................................................................................................................42
Using the Compass..............................................................................................................................44
Transmit homing.................................................................................................................................44
Setting up the UDI-14™ Boat Unit ......................................................................................................45
Buddy Select ..................................................................................................................................45
UDI-14™ Boat unit setup .................................................................................................................45
Clock .........................................................................................................................................45
Audio ........................................................................................................................................46
Backlight....................................................................................................................................46
LED Control................................................................................................................................46
Display Contrast .........................................................................................................................46
Units .........................................................................................................................................47
About UDI-14™ boat unit ............................................................................................................47
Care and maintenance .........................................................................................................................47
Revert to factory setting..............................................................................................................47
DiveSim™ software..............................................................................................................................................48
Using the software ..............................................................................................................................48
Update your UDI-14™ and Boat Unit ................................................................................................49
Manage UDI-14™ log ..........................................................................................................................52
Database function ...............................................................................................................................53
PC Simulator.......................................................................................................................................55
UDI-14™ Simulator .............................................................................................................................56
Appendix –RGBM Model......................................................................................................................................57

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Introduction
Congratulations on your purchase of the UTC –Underwater Digital Interface 14 (UDI-14™) System.
UDI-14™ is a device that contains several functions used for diver safety, communication and
computation.
To active your warranty and allow us to update your UDI-14™ software from time to time, please visit our
web site www.utc-digital.com and fill the online registration card.
The system consists of the UDI-14™ diving unit, an optional UDI-14™ boat station (version II), and the
DiveSim™software. Each item can be purchase separately.
The UDI-14™ contains the following functions:
•Text messages communication device
•SOS signal transmission and reception
•Navigation unit and homing device
•Dive computer (on the dive unit only)
•Compass
The DiveSim™PC software can be used in conjunction with the UDI-14™ to plan dives, review dive data,
and simulate dives. The software can also be used to update text message and names (users) lists. The
DiveSim™is used also to manage dive log files.
The UDI-14™ text messaging system links divers through transmission of pre-set messages with ease and
reliability at ranges of up to 500 meters, depending on environmental conditions.
Upon receiving a message signal, the UDI-14™ unit sounds an audible alert and lights up to show the
message.
The SOS signal can be activated by a diver in distress, or remotely by any diver who suspects that his
buddy is in distress. Upon activation of an SOS signal, the UDI-14™ transmits information required to
locate the SOS sender.
Each UDI-14™ includes a homing device to help the diver locate other divers or the boat unit.
The UDI-14™ can be worn on the lower arm or attached to the Buoyancy Compensator (BC).
The UDI-14™ permits a diver to communicate with any other diver in the network without distractions or
potential discomforts.

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Safety
Read and understand this user guide prior to using the UDI-14™. We strongly recommend to train yourself
with the device.
Pay close attention to all cautions and warnings listed. Make sure that you fully understand the use,
displays and limitations of the UDI-14™ prior to diving. Improper use of this device may cause a diver to
commit actions that could lead to serious injury or death.
WARNING: The UDI-14™ must never be traded or shared between users while it is in operation.
Switching the UDI-14™ to a new diver using this feature will void any data from the previous
diver.
Ensure that the new diver did not dive within the 24 hours prior to using the UDI-14™ – The
computer cannot account for dives performed without the UDI-14.
Battery saving and water sensor
The UDI-14™ has a battery saving mode. After the UDI-14™ unit is turned on:
If no button is pressed on the UDI-14™ or 10 minutes elapsed, the UDI-14™ goes to standby, and
the screen displays the word Standby.
After 60 minutes of no activity, the UDI-14™ turns off.
The UDI-14™ unit contains a water sensor. When the UDI-14™ unit that has been turned on or is in
standby comes in contact with water, the dive computer becomes activated.
A dive calculation starts when the UDI-14™ reaches a depth of 2 meters, and is wet for at least 15
seconds.
Before every dive
To ensure your safe use of the UDI-14™ before every dive, you must check:
•UDI-14™ battery is charged
•The RGBM settings and dive computer settings are set to match the planned dive conditions
•The preset messages list and the users list (names) in the dive group are the same. This
means that the same table tag is on all devices in the dive group.
•The network used between you and your buddy or group.
•Check communications by sending a message to your buddy and receiving a message back.

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UDI-14™ unit
Unit Description
The UDI-14™ unit consists of the following:
1
6
5
4
3
2
7
1. Antenna
4. Display plastic protector
2. Up scroll button
5. Attachment buckle
3. Down scroll button
6. Enter button
7. Emergency (SOS) button (H-HELP)
The UDI-14™ contains the following functions:
•Dive computer
•Electronic compass
•Message sending/receiving
•Homing device
•Emergency beacon
•Dive logger
Use of these functions is explained below.