Catalogue

Oceanic VEO 250 scuba dive computer has 2 buttons on the interactive control console – ADVANCE and SELECT. And by using them you can access and set variety of functions, swap main and alternative displays, activate backlight, acknowledge audio.

This dive computer has 3 bar graphs to keep you up to date with data about nitrogen loading, oxygen toxicity and speed of your ascent:

1. Tissue Loading Bar Graph (TLBG) – this bar graph represents your nitrogen loading, and shows your No-Decompression and Decompression status. It’s divided to colour zones – green zone – No-Decompression status, yellow – Caution (No-Decompression), red – Decompression conditions.
2. O2 bar graph (O2BG) – this bar graph shows you the level of oxygen toxicity from a single dive, or accumulated oxygen loading for the last 24 hours.
3. Variable Ascent Bar Graph (VARI) – this bar graph gives you graphical representation of the ascent speed. It’s divided to colour zones – green zone – Normal rate, yellow – Caution rate, red – too fast.

On surface you will have an access to variety of functions of Oceanic VEO 250 (Time to Fly and Time to Desaturate, Log Mode, PC interface and Predive Planning Sequence (PDPS), Reset function) and you may set variety of parameters, which divided into Mode 1 and Mode 2.

Copy this Oceanic VEO 250 Settings Card for your Reference and Share with your friends and buddies!

Oceanic VEO 250 operates in 3 dive modes:

1. Air;
2. Nitrox;
3. Gauge Mode – in this mode Veo 250 functions as a depth gauge and timer only and doesn’t perform calculations for nitrogen absorption and oxygen accumulation

For each mode you set, dive computer has several displays to keep you well-informed about current situation. To swap displays I needed to press ADVANCE control button that is located in front.

Oceanic VEO 250: Diving With Air & Nitrox

Copy this Oceanic VEO 250 NO-DECO Card for your Reference and Share with your friends and buddies!

During No-Decompression dive you may get Automatic Safety Stop prompt. At that moment you will hear Oceanic VEO 250 beeping and it will show you display with appropriate data, like Safety Stop Depth and Safety Stop Countdown timer.

If your ascent is too fast – scuba dive computer will give Ascent rate alarm with all segments of VARI flashing and in the red zone with audio signal, and red LED flashing as well.

If you exceeded theoretical No-Decompression Limits – dive computer will turn to Decompression mode and help you perform your decompression correctly. For Decompression it has few displays with related data and you need to press Advance button to see all of it.

After you got this Decompression message from VEO 250, you need to ascent to the depth displayed or to the depth a bit deeper than displayed and stay there for time that shown on the screen.

Oceanic VEO 250 has special graphic representation for Decompression Stops management – UP and DOWN Arrows and a horizontal bar. For example, if you hit exact depth required or stay within the limits of required depth – dive computer displays steady both Arrows and a bar, if you surfaced to shallower depth – you will see DOWN Arrow and a bar (you may get into the Violation mode then), and if you’re deeper – UP Arrow and the bar – easy as it is!

Below is a summary from main and alternative displays for Decompression Mode:

• current depth;
• required ceiling for Decompression Stop Depth and Decompression Stop Time;
• Total Ascent Time (TAT);
• Deco Stop icon (arrow and bar);
• Elapsed Dive Time (DTR);
• max depth;
• temperature;
• time;
• PO2 value (if Veo 250 was set for Nitrox);
• all applicable icons, etc.

You may create violations during Decompression Mode. It means that you ascended to shallower depth than required for Decompression Stop and maybe stayed at that shallower depth for a while.
In that case you won’t get any off-gassing credits but instead you will receive a penalty time that must be worked off before you will get any off-gassing credit.

Upon reaching certain conditions, you may have High PO2 warning/alarm and High O2 warning/alarm. Oceanic VEO 250 designed to help you out in these situations as well, by displaying all related values and bar graphs, like PO2 value, flashing segments of O2BG and UP Arrow, current depth and DTR in the first case; and flashing full O2BG and UP Arrow, O2 DTR is displayed as 0 (zero) in second case.

Oceanic VEO 250: Diving In GAUGE Mode

VEO 250 dive computer may be set for Gauge Mode. It means that it will work as a depth gauge and timer only and won’t calculate any nitrogen and oxygen loading. In Gauge Mode you may use this dive computer for freediving as well.

When Oceanic VEO 250 is set for Gauge Mode, its maximum depth increases to 120 meters (400 ft). In this mode you will get main and alternative displays with following data:

• current depth;
• max depth reached;
• Elapsed Dive Time (EDT);
• temperature;
• time;
• VARI (when ascending)

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

1. Pre Dive Planning Sequence (PDPS) – this function shows you No-Decompression Limits (NDLs) - depths and times, according to your current nitrogen or oxygen accumulation from previous dives (if any);
2. Time to Fly Countdown Timer;
3. Time to Desaturate Countdown Timer;
4. Log Mode – it stores data of your 24 most recent dives (battery removal does not make any affect on Log memory);
5. PC interface – this function allows you to download data from Oceanic VEO 250 to PC by using special cable and software;
6. Reset function – this feature allows you to do RESET to all data including Logs, and nitrogen and oxygen calculations – great beneficial feature if you use VEO 250 for rental and training purposes;
7. Dive Simulator Mode – what can be better than learn your dive computer in variety of diving situations without going underwater! This function allows you to do so, by entering data and observing the dive computer’s response, and how it displays certain information for different diving scenarios.

Oceanic VEO 250: What Divers Say

As you may see from all the information we got here and comparisons – Oceanic VEO 250 is pretty basic, but solid dive computer that is suitable for the beginners and experienced divers who want to use it as a main or dive computer for backup.

It is easy and reliable as it should be! Perfect Decompression management, audio clearly was heard under water, screens had good visibility, backlight is great for night dives, setting it for Air or Nitrox is very smooth and simple operation.

Oceanic VEO 250 is not the high-tech dive computer, but works perfectly from specs, features and price point of view!

Oceanic Veo 250 Wrist	Dive-Computer-Wizard Rating

So, there is a conclusion – Oceanic VEO 250 is a solid basic dive computer - beginners and experienced divers will appreciate its simplicity and reliability of operation in variety of diving situations!