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SUUNTO D4i User Manual

Page 58

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At this time, perform your pre-checks, and ensure that:

the instrument operates in the correct mode and provides a complete display
(AIR/NITROX/FREE mode)

the battery level is ok.

the altitude, personal adjustment, Deep stops settings are correct.

the instrument displays correct units of measurement (Metric/Imperial).

the instrument displays the correct temperature and depth (0.0 m/0 ft).

the alarm beeps.

If the optional wireless pressure transmitter is used ensure that:

the pressure transmitter has been properly attached and the cylinder valve is open

the transmitter and the wrist unit have been properly paired on a suitable code

the pressure transmitter is working (flash symbol blinks, cylinder pressure is dis-
played), and that there is no low battery warning displayed

you have enough air for your planned dive. You should also check the pressure
reading against your back-up pressure gauge

And, if set to NITROX mode, ensure that:

the correct oxygen percentage is adjusted according to the measured oxygen
percentage in your cylinder

the oxygen partial pressure limit is set correctly

For more information on the NITROX mode, please refer to Section 6.2. Diving in NI-
TROX mode (DIVE Nitrox)
.
The dive computer is now ready for diving.

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