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SUUNTO SPYDER User Manual

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your available no-decompression time decreases below 60 minutes, the first (low-

est) bar graph segment appears. As your body absorbs more nitrogen, more seg-

ments start to appear.
Green Zone - As a safety precaution SUUNTO recommends that divers using the

Spyder should maintain the no-decompression bar graph within the green zone.
Yellow Zone - As all of the bars appear (yellow zone), your no-decompression

limit is less than 5 minutes and you are getting very close to no-decompression

limits. At this point, you should start your ascent towards the surface.
4.3.3 Ascent Rate Indicator
The ascent rate is shown graphically along the left side of the display, next to the

notation ASC RATE, as follows: