CCR Data Screens
Primary data screen: Displays the main dive data, including your breathing gas, partial pressure of oxygen (PO2) level, and rate of ascent. You can edit one of the data fields.
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Your nitrogen (N2) and helium (He) tissue load level. Segment 1: 0 to 79% tissue load. Segment 2: 80 to 99% tissue load. When you start a safety stop, the safety stop gauge appears (Performing a Safety Stop). When your tissue load level reaches or exceeds 100%, the decompression stop gauge appears (Performing a Decompression Stop). |
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Your rate of ascent.
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: Good. Ascent is less than 7.9 m (26 ft.) per minute.
: Moderately high. Ascent is between 7.9 and 10.1 m (26 and 33 ft.) per minute. 
and 
alternating: Too high. Ascent is greater than 10.1 m (33 ft.) per minute.Dive compass: Allows you to view the compass and set a directional heading to aid with underwater navigation (Navigating with the Dive Compass).
Customizable data screen: Displays additional dive data and physiological information. You can edit the gauges and two of the data fields (Customizing the Data Screens).
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Your central nervous system (CNS) oxygen toxicity level. Segment 1: 0 to 79% CNS oxygen toxicity. Segment 2: 80 to 99% CNS oxygen toxicity. Segment 3: 100% or greater CNS oxygen toxicity. |
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Your current oxygen toxicity units (OTU). Segment 1: 0 to 249 OTU. Segment 2: 250 to 299 OTU.Segment 2: 250 to 299 OTU. Segment 3: 300 or greater OTU. |
