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previous page Ouroboros Rebreather Heads up Display (HUD) for alarms click here

The Heads-up display (HUD) works in-conjunction with the Primary display and uses four LED lights to warn the diver of the changing status of the unit. The different colour LEDs correspond to different groups of Alarm types. As a basic rule, a Flashing LED is a warning. A static ‘on’ or ‘off’ LED is an OK condition. A fast flash indicates a different Alarm state to a slow flash. As there are many combinations, the diver should use the HUD in combination with the primary display. When the primary display is in the Main Dive Screen, the top right corner of the display will give an indication of the highest priority Alarm, which will correspond to a flashing LED on the HUD.
In the case of more than one Alarm state, the diver should look at the Sum – (Summary) screen to get more information. An alarm status will also actuate a vibrating action throughout the mouth piece.
HUD mounted on the mouth peice
The HUD can be removed via the retaining screw
Above; The HUD controller (2005) incorporates a vibrating mouth peice warning signal as well as lights. 		Alarm and Oxygen light up
Above; Here the Alarm and Oxygen signal lights actuate.
From the Sum – (Summary) screen, the diver can also deactivate the vibration alarm that comes on when major alarms are detected, however the HUD light will not turn off. The only exception to this is the Absorbent remaining alarm which can have both indicators turned off but will reactivate both after 30 minutes.


The table below gives the Alarm types indicated by the HUD.

Alarms will occur on the Primary display and the HUD. The HUD will give a visual (flashing light) and a tactile/audible warning (it vibrates).
The HUD will vibrate until the alarm function either corrects itself, you correct it or you turn off the vibration function for that alarm. You can turn the function off by going to the first page of the SUM screen and turning off the music note (short push, right button). If the vibration continues then something else is still in alarm. Visual alarms cannot be turned off. If you turn off the vibration alarm for the ‘stack low’ alarm it will automatically reactivate every 30 minutes. The HUD white alarm light will also be turned off for 30 minutes. The first screen entered shows the first page of current alarm conditions.
• To move between pages, use a short press of both buttons.
• To disable an alarm from activating the HUD vibration motor, use a short press of the right button to toggle the mode on and off. You will notice the music note symbol disappears. Visual screen and HUD alarms will still be apparent.

Below are tables of the alarm categories, and the specific alarms in each category:

Sum – Summary screen Alarms Tables
PO2 Alarm Table – Highest Priority 1






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