Catalogue

As was mentioned above Oceanic Geo 2 has 4 buttons on the Interactive Control panel: Mode, Select, Light, and Advance.

Oceanic GEO 2.0 dive computer

Geo 2 has two bar graphs to display nitrogen loading and ascent rate:

1. Nitrogen loading bar Graph (TLBG) – shows you no-decompression and decompression status: when you go deeper and dive time increases, segments will be added to TLBG, and when you ascend – amount of segments decreases therefore giving you more time to stay underwater; 4 segments represent No-Decompression status, and when all 5 segments filled up – it indicates that you are in Decompression situation;
2. Variable Ascent Indicator Bar Graph (VARI) – represents your ascent rate at certain depths

Oceanic Geo 2 has Dual Algorithm feature – it means that you may choose between more liberal and conservative diving. And you may add even higher conservative factor by setting Tissue Loading Bar Graph (TLBG) alarm and Personal Conservative Factor. Algorithms are listed below:

1. Pelagic DSAT – use it for more liberal diving, and to add more conservatism you may adjust Nitrogen Tissue Loading Bar Graph alarm and set your Personal Conservative Factor;
2. Pelagic Z+ - use it for conservative diving, and by choosing this algorithm, you will increase conservative factor by 15 – 20% right away - this option is a great benefit for those people who involved in frequent and challenging diving conditions, divers who are overweight, and people who dive in cold water conditions or those who didn’t dive for a long period of time

Before diving you need to set desirable parameters before going underwater, of course. As this dive computer made with digital watch functions, so the first parameters you will probably want to set – is your digital watch parameters. It is really easy, just follow the instructions - when and for how long press certain button! Digital watch parameters listed below:

• main time;
• dual (alternative) time – maybe time zone of your next travel destination;
• daily alarm;
• countdown timer;
• chronograph
• date

All parameters in Oceanic Geo 2 are divided into certain Groups where you may set FO2, variety of alarms for Normal and Gauge Modes (for freediving you will set alarms separately and they are accessible from Freedive Mode menu), and number of utilities. Here you will really need to practice with the manuals to get familiar with buttons combinations, because it may be confusing since the beginning!

Below is a summary of what you may set for Normal (Air/Nitrox) and Gauge Modes:

• Dual gas mix: Gas 1 FO2 – Air, 21% - 100%; Gas 2 FO2 – Air, 21% - 100%;
• Depth alarm;
• Elapsed Dive Time (EDT) alarm;
• Tissue Loading Bar Graph (TLBG) alarm;
• Dive Time Remaining (DTR) alarm;
• PO2 alarm – 1.2 ATA – 1.6 ATA in 0.1 ATA increments;
• Units;
• Personal Conservative Factor – ON/OFF;
• Deep Stop – ON/OFF;
• Safety Stop Depth and Time;
• Algorithm setting;
• Backlight duration – 0/5/10 seconds, etc.

As a dive computer, Oceanic Geo 2 operates in 3 dive modes:

1. Normal Mode – when you set it for Air or Nitrox;
2. Gauge Mode – in this mode Geo 2 functions as a depth gauge and timer only and doesn’t perform calculations for nitrogen absorption and oxygen accumulation;
3. Freedive Mode – this mode is for diving without scuba gear

To assist us during diving, Geo 2 dive computer has main and alternative displays with all information related to type of dive, No-Decompression or Decompression conditions, Deep and Safety Stops, and any violations you may have. Also you may switch between gas mixes during the single dive.

Oceanic GEO 2: Diving With Air & Nitrox

Copy this Oceanic GEO 2 NO-DECO Card for your Reference and Share with your friends and buddies!

You need to press Advance button with certain duration of time to access alternative displays, Deep Stop and Safety Stop displays. To switch gases you need to use Mode button and for Backlight – Light button.

If you need to switch between gases – it is easy to do – just use combination of Mode and Select buttons. Just remember, that dive begins with Gas 1 and switching is blocked when you are on surface, except during first 10 minutes of the Transition Period when you resurface after the dive.

Decompression mode starts when you exceed theoretical No-Decompression limits of time and depth. If this happens – Oceanic Geo 2 activates an alarm, all 5 segments on TLBG are filled up and flashing and UP Arrow icon will flash too.

Copy this Oceanic GEO 2 DECO Card for your Reference and Share with your friends and buddies!

At that time you need to ascend to required Stop Depth that is shown on the display or slightly deeper and stay for decompression for certain Stop Time, which is displayed too.

Also, if you make any violations (ascending shallower than required and stay there for some time) – Oceanic Geo 2 will show information related to each kind of violation with appropriate values, Bar Graphs, icons, and graphics. And, of course, you will not be given any off-gas credits if you ascent shallower, and moreover you will be given penalty minutes and it is your obligation to fulfill you decompression correctly to stay out of Decompression Sickness (DCS).

Oceanic GEO 2: Diving In GAUGE Mode

If Oceanic Geo 2 set for Gauge Mode – it will work as a depth gauge and timer and do not perform calculations for nitrogen and oxygen accumulation, and it will be locked to this mode for 24 hours if dive in Gauge mode was completed.

Below is a representation of information from main and alternative displays, related to Gauge Mode:

• current depth;
• max depth;
• Elapsed Dive Time (EDT);
• Variable Ascent Indicator (VARI) while ascending;
• time;
• temperature;
• applicable icons

Oceanic GEO 2: FREEdiving

As Oceanic Geo 2 may be used for freediving activities, you need to set some specific parameters for this sort of diving:

• Countdown Timer (CDT) and toggle it (ON/OFF) while diving;
• Elapsed Dive Time (EDT) alarm – ON/OFF;
• 3 Free Depth alarms, each alarm goes for progressively deeper depth

In a Freedive mode Oceanic Geo 2 dive computer works as a depth gauge and nitrogen calculation is based on the default FO2 of Air and the amount that you may have after previous dives from the last 24 hours.

Below is a representation of information from main and alternative displays, which you will certainly have during freedive:

• current depth;
• Dive Time Remaining (DTR) with No-Decompression (NDC) icon;
• Elapsed Dive Time (EDT);
• Tissue Loading Bar Graph (TLBG), if you still have any remains of nitrogen after previous dives;
• temperature;
• time;
• applicable icons;
• Remaining Countdown Time, if Countdown Timer is ON

Freediving has its specific displays and set of alarms, like:

• Countdown Timer display – you may set in ON/OFF;
• Free dive Elapsed Dive Time (EDT) alarm – different from EDT in Air and Nitrox modes;
• Free dive Depth (FDA) alarms – you may set 3 depth alarms, each at progressively deeper depths;
• High Nitrogen Level warning/alarm – if you have nitrogen accumulated from previous dives and it increases to Caution Level (4 segments) during freediving – you will have audio alarm that goes on and 4 segments are flashing on TLBG; when level increases to Deco level and all 5 segments are filled up – you will have audio again with VIO message and UP Arrow will flash, and No-Decompression Time will be 'zero'

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After the Transition Period you will have access to following modes:

1. Pre Dive Planning Sequence (PDPS) – this function allows you to see for how long you may stay underwater safely and at what depth, according to your current nitrogen or oxygen accumulation and Algorithm selected;
2. Time to Fly Countdown Timer;
3. Time to Desaturation Countdown Timer;
4. Logbook Mode – it stores data of your 24 most recent dives (battery removal does not make any affect on Logbook memory);
5. History Mode – accumulates information, like number of dives, number of dive hours, and Max depth achieved from all your previous dives, lowest temperature recorded, etc. (battery removal does not make any affect on History memory);
6. PC interface – this function allows you to upload and download data from Oceanic Geo 2.0 to PC by using special cable and software

Oceanic GEO 2: What Divers Say

As you may see, Oceanic Geo 2 may be recommended dive computer for the beginners, technical and free divers. It offers great range of features, like Dual Algorithm, Dual Gas; Gas switching, improved and user friendly interface – these features may easily satisfy the most demanding divers, and it’s all in one small package of the size of wrist watch – and that is the main benefit for us!

And it looks just "cool" on you wrist, as you may wear it as a watch – I got few nice compliments of people from the office about it!

Even though you may find difficult following manuals; pressing buttons while diving in cold water and wearing thick gloves; or difficulties of seeing digits at the sharp angles – these cases do not depreciate great features and benefits that this dive computer may give you during all term of its exploitation.

Another main thing about this dive equipment – it is the price!

Oceanic Geo 2	Dive-Computer-Wizard Rating

If you want to have reliable, friendly and flexible dive computer that will cover wide range of your diving activities and allow you to grow as a diver without needing to buy additional dive instruments and pay for the pack so low price at the same time - Oceanic Geo 2 is for you!