Dive Rite O2ptima Guía de usuario descargar pdf (Pagina 37)

The next option allows the diver to put the handset in

either open circuit or close circuit mode. In open circuit

mode, solenoid control is disabled, unless the PO

falls

to 0.19Ata. This function serves two purposes. The first

allows the diver to bail onto open circuit and still have

decompression obligations calculated. The second is to

use the handset as a stand-alone dive computer. The left

button toggles between modes while the right button

selects displayed mode. The system has a short cut out

of open circuit and into closed circuit. If the diver

chooses a set-point while the handset is in operating in

open circuit, the handset immediately switches to closed

circuit mode with the selected set-point.

The next set of options is entered through the

“OPT” menu. Selecting this screen enters a sub-menu

containing programming, calibration, and testing

options. Some of these selections will be locked out for

safety once the handset enters dive mode.

The first function under the “OPT” menu is the “DEFINE GAS” option; this allows the

diver to program up to ten custom mixes. These gases can be any nitrogen-oxygen,

helium-oxygen, oxygen, or trimix. Each gas can have a user-selected name consisting of

6 characters and should be named to allow easy identification..

Once the “Define Gas” screen is displayed, the diver must press the right button to

select. The next prompt is “Gas Mix 1”, continue pressing the left button until the mix to

be programmed is displayed. The right button will enter the gas-naming screen. Choose

any name up to six characters; the current character will be displayed with the character

underlined. The left button will cycle through available characters while the right button

proceeds to the next character. After all six characters have been entered; entry of the gas

composition will be prompted, starting with the oxygen percentage followed by the

helium percentage. The remainder will be assumed nitrogen. For oxygen, enter an oxygen

percentage of 99%.

NEXT SELECT

Open Circuit

OPT

NEXT SELECT

Define Gas

NEXT SELECT

Gas Mix 1

NEXT SELECT

Air

NEXT SELECT

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Dive Rite O2ptima Guía de usuario Pagina 37