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ON SURFACE AFTER DIVING
DATA DISPLAY AND MANAGEMENT.
This chapter deals with all the "on surface" functions, including data processing after a dive. By using the
right (>) or left (<) button, it will be possible to activate in sequence the Following functions: LOG BOOK
(dive log), HISTORY (dive history) and PC LINK (Data transfer to PC by means of interface).
SURFACE INTERVAL.
After a dive with AIR DIVE MODE or NITROX DIVE MODE function, when you reach depths below 0.8 m,
the display provides the following information:
1) Surface interval given in hours and minutes (SURF.T)
2) Desaturation time (DESAT) to be respected before embarking on a flight (in hours and minutes).
2) NO FLY icon. It means that flights or travel to higher altitudes than the current altitude must be avoided.
3) Max depth reached in the latest dive.
4) Duration of the latest dive.
5) Eventual alarms issued during dive (ascent rate, partial pressure of oxygen)
6) Indication of the altitude (if applicable).
7) DECO indication (if applicable).
8) Nitrox indication and O2 toxicity bar if the latest dive has used Nitrox
IMPORTANT: Following the indications of the major organisation which study diving and hyperbaric
medicine, Giotto applies the no flight times as follows:
12 hours after a single dive with no decompression limits.
24 hours after a dive with decompression or after repetitive or multiday, of correctly performed.
48 hours after the use of the gage function or if severe mistakes in dive management occurred.
REMARK: Should a dive begin with less than 2 minutes of surface interval time, Giotto will consider it a
continuation of the previous dive: the number of dives remain the same and the calculation of the duration
restarts from where they had stopped. Dives carried out after at least 2 minutes of surface are considered
as a new dive.
In the case the dive is performed with the GAGE function the device will not perform any saturation or
desaturation calculation during the 48 hours elapsing from the end of the dive performed, represented by
the surface interval SURF.T.
PLAN FUNCTION – DIVE PLAN.
The PLAN function takes into account the residual nitrogen in the tissues after the dive/s performed,
changing the decompression times and making them shorter than those indicated for a first dive.
REMARK: The PLAN function is disabled in the GAGE function (depth gauge/timer) and if the computer
shows "error".
LOG BOOK FUNCTION – DIVE LOG.
Giotto by Cressi stores data about the last 60 dives. Data is recorded every 20 seconds in the LOG BOOK.
To display the previous dives, press and hold the right (>) button until the word LOG appears. The latest
dive will be displayed in chronological order. To display the data related to the previous dives, press the
central Mode button so that the dive number flashes. Then, press the right (<) or left (<) button to move
forward or backward to the desired one. The LOG BOOK presents two screens for each dive with single
mixtures and three screens for the dives performed with two mixtures. To display the second screen of
dive, once reached the dive number desired, press the central Mode button. In case the dive is performed
with two mixtures GAS SWITCHING, once the second screen is displayer, to see the third one, you will
need to press the right (>) button. In both cases the data remains displayed for 20 seconds after that, the
computer will automatically return to the main menu. Keep pressing the right (>) or left (<) button and you
will see in the three screens with the dive data.
The LOG BOOK function, therefore, enables to display, by means of two or three screens, of a complete
series of data related to the dives performed, starting from the most recent dive in chronological order.
AIR SURFACE INTERVAL
NITROX SURFACE INTERVAL
PLAN FUNCTION
MODE
MODE
LONG
LONG
MODE MODE MODE
LONG LONG LONG
MODE MODE MODE
LONG LONG LONG
MODE
LONG
AIR LOG BOOK
INDEX
17
AUTOMATIC
RETURN OR
WITH LONG
MODE
BUTTON
BEEP
AUTOMATIC
RETURN OR
WITH LONG
MODE
BUTTON
BEEP
17


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