Dive Computer Expert Reviews
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UWATEC Galileo Luna is one of the most sophisticated and thorough dive computers in nowadays scubadiving market. And I may say that it is a light version of Galileo SOL.
Galileo Luna can satisfy all our diving needs – beginners will find all functions they need to start diving career and well written explanations (quite big volume of info though!), advanced divers will appreciate flexibility of usage in different diving conditions and possibility to download Predictive Multi-Gas (PMG) and Heart Rate Monitoring firmware update and on top of that Apnea upgrade can be downloaded free of charge. When you get that – your Luna will be as functional as Galileo SOL.
Along with Microbubble Suppression function, UWATEC supplied Galileo Luna with another feature for our extra-safety – Profile Dependent Intermediate Stops (PDIS) and not to mention functions, which made Luna unique and versatile dive instrument.
Some of them mentioned below:
Copy this UWATEC Galileo Luna Features & Alarms Card for your Reference and Share with your friends and buddies!
With all its deep functionality and variety of features Galileo Luna has only 3 control buttons.
You may adjust display layout according to your needs. Display has 3 types of configuration:
If it is set as Light screen configuration – dive computer will show only critical bigger sized dive values that are sufficient for mode you are in; Classic display has more information shown and Full configuration displays all data plus many extras.
You may dive with Light screen configuration only in No-Decompression conditions, if you entered Decompression or MB Level stop – display will automatically swap to Classic in order to show you all information related to those specific conditions.
And each configuration has main and alternative displays – so you need to press ‘middle’ button to see more dive data.
Galileo Luna has 2 bar graphs: Nitrogen Loading Bar Graph (this one is shared between Nitrogen Loading and Ascent Rate and it replaced by Ascent Rate Bar Graph during ascent) and Oxygen Toxicity Bar Graph that is shared with Tank Pressure Bar Graph. Brief descriptions of them you will find below:
Before setting up parameters and going underwater we, guys, need to devote quite a time to read manuals and learn how to use dive computer correctly. Because it is high-tech dive instrument and it is not easy to jump on it straight away – too much information and procedures to learn!
At this stage we will look at the customizable functions and set our Galileo Luna for dive. So, after we got to the Main menu we will be able access following sub-menus and customize Luna as much as we want:
After we have finished customizing, we may go to Dive Planner. Dive Planner of Galileo Luna allows us to see not only No-Decompression times available and plan No-Decompression dives, it also make it possible to plan Decompression dives too.
Planning our next dive is based on many crucial factors, like selected FO2 and MB Level, water temperature and altitude, residual nitrogen and workload.
For No-Decompression dive we enter desirable depth and Galileo will calculate corresponding No-Decompression (No-Stop) time at this depth.
For planning Decompression dive we need to enter bottom time and Luna will show appropriate decompression data – deepest stop depth and time and total ascent time, according to critical factors mentioned above.
UWATEC Galileo Luna: Diving With Air & Nitrox
Before actual diving it is worth to say about Microbubble (MB) Level Stops and Profile – Dependent Intermediate Stops (PDIS).
Galileo Luna has few levels of MB adjustment and first of all, you may set MB Level from L0 to L5 and PDIS can be set to ON/OFF. Microbubbles (MB) will build inside human body during any dive and even doing Decompression and Safety stops won’t prevent them from developing. MB Suppression mathematical model monitors diving conditions by gathering dive data and adds additional safety for diver by prompting additional stops during a dive.
According to this, you should set certain level of MB suppression – from Level 1 (lowest protection) to Level 5 (highest protection) – by setting them you tell the dive computer to prompt you for Level Stops on your way up. Level L0 is just the very basis of ZHL – 8 ADT MB PDIS algorithm.
During a dive, depending on dive time, depth, MB Level you set before and some other factors, Galileo Luna will give you several prompts to perform additional level stops (for microbubbles suppression). It will assure diver, that after resurfacing, he/she will have the lowest possible level of microbubbles in his/her body.
Profile – Dependent Intermediate Stops (PDIS) algorithm tracks your dive profile and monitors nitrogen intake and according to the diving conditions gives you intermediate stop prompt. On the contrary - widely used Deep Stops do not take into the consideration diving profile and give you stop time at half of the maximum depth achieved during a dive.
After a bit of theory we are well prepared to practice everything we learnt!
Upon starting a dive Galileo Luna begins showing us appropriate dive data and the amount of it depends on type of display layout you set before – Light, Classic, or Full.
Copy this UWATEC Galileo Luna NO-DECO Card for your Reference and Share with your friends and buddies!
Also Galileo Luna may wake you up by means of warning and alarms, like Fast Ascent Rate, High PO2 and O2 alarms, Low tank Pressure and Low Remaining Bottom Time warnings, etc. For all of those conditions Luna has designated data and it is shown to us in clear and intuitive format – no any doubts about that!
When we exceed No-Decompression limits (NDLs), Galileo Luna activates Decompression mode and all dive data calculated according to Decompression dive.
At this case dive computer gives you warning that No-Decompression dive became Decompression dive by audio and by inverting colour of the background of that part of display where it shows Deepest Decompression Stop depth, Decompression Stop Time and Total Ascent Time. Also you will get full set of segments on Nitrogen Loading Bar Graph.
If you set MB Level higher than L0 (this setting doesn’t require ‘level stops’), you will be prompted to complete few ‘level stops’ no matter whether you are in No-Decompression mode or in Decompression mode.
For MB Level Stop Galileo Luna has specific display:
If diver omitted ‘level stop’ – Galileo Luna will automatically adjust preset MB Level to lower one and if you dive deeper after that, dive computer may give you a request straight away to complete ‘level stop’ to reduce the risk of microbubbles formation.
UWATEC Galileo Luna: Diving In GAUGE Mode
In Gauge mode dive computer doesn’t perform any decompression and MB calculations. You will be able to use it as a depth gauge and timer only.
Display layout looks as follows:
You will be able to use Stopwatch functions, make a Bookmark and use a compass as well.
Galileo Luna has following functions for post diving operations:
One of the nicest features of Galileo Luna is possibility to upload from PC and view grey-scale pictures on this dive computer! Of course it doesn’t have full colour capabilities as we have in Mares Icon HD model, but still very useful when downloading bitmap maps of diving places or decompression tables.
Galileo Luna has very extensive on-unit memory capacity – it may store about 100 dive hours with 4 seconds sampling rate of recording and has 5 pages of dive data. You may easy download all data to PC using optional IrDA unit – it doesn’t cost too much, so I recon it is a must have thing!
And there is no Logbook data or nitrogen or oxygen calculations lost during battery replacement!
Also it is possible to upgrade firmware of Galileo Luna. At this moment UWATEC has following firmware upgrades on offer:
And by using SmartTrak Software you may change settings on your dive computer – just input desirable parameters into SmartTrak that is installed on your PC and then upload them to Galileo Luna – easy as it is!
UWATEC Galileo Luna: What Divers Say
No any complains about its operations, just big amount of information in manuals – but, hey, it is high-tech scuba diving equipment and we need to learn it to make it really our ‘buddy’!
And another thing is worth to say about – absence of Dive Simulator in Galileo Luna. My personal opinion is that dive computers of this class must have this function – it will make quicker learning process and familiarizing new users with Luna and also let guys who own this dive instrument to recall its functions and behaviors if they don’t dive for a while!
Precise dive data and oversized digits, clear warning messages, extra–safety for diving in any conditions and profiles, possibility to upload pictures and huge on-unit memory capacity, air-integration and digital compass on top of everything else plus possibility of firmware upgrade – what else do we need in dive computer these days!
If you are serious about diving and love high-tech stuff, if your family budget allows you to spend quite a bit money without having a kick from your family members (or maybe if you can withstand few kicks!) – UWATEC Galileo Luna is definitely for you! After having this beauty – you won’t need another dive computer ever (of course, if you don’t plan to dive with trimix soon enough – because Luna doesn’t have trimix capabilities even with firmware upgrade)!