When conditions are rough, it may be difficult to maintain a constant depth near the surface. In such cases, it is more manageable to maintain an additional distance below the ceiling, to ensure that the waves do not lift you above the ceiling. Suunto recom- mends that decompression takes place deeper than 4 m/13 ft, even if the indicated ceiling is shallower.

NOTE

WARNING

It will take more time and more air to decompress below the ceiling than at the ceiling.

NEVER ASCEND ABOVE THE CEILING! You must not ascend above the ceiling during your decompression. In order to avoid doing so by accident, you should stay somewhat below the ceiling.

Display below the floor

The blinking ASC TIME sign and an upward pointing arrow indicate that you are below the floor. You should start your ascent immediately. The ceiling depth is shown on the left side, and the minimum total ascent time on the right side of the center window. Below is an example of a decompression dive without Deep Stops, below the floor.

UPWARD POINTING ARROW, BLINKING ASC

TIME AND AN ALARM TELL YOU TO ASCEND.

MINIMUM TOTAL ASCENT TIME INCLUDING SAFETY

STOP IS 9 MINUTES. CEILING IS AT 3 M.

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Suunto D6I manual Display below the floor