Divesoft He/O2 Analyzer, Руководство пользователя

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He/O
2
Analyzer
Other functions
7. Other functions
7.1 Continuous analysis
The
Menu/Continual Analysis
option activates the function of continuous-filling monitoring.
This mode makes it possible to set up the upper and lower limit of oxygen and helium content.
The analyzer continuously measures the concentration of these components and if the preset
limits are exceeded, it makes a beeping sound. This mode is applied when the analyzer is used
as a safety component during continuous nitrox filling, where a defect of the mixing apparatus
could cause increased oxygen concentration potentially resulting in a fire or an explosion of
the compressor.
In the continual analysis mode can press the
MENU
button to set the limits of all mea-
sured values.
7.2 Gas mixing solver
When the Menu/Gas mix solver option is selected, the gas-mixing solver function is activated.
The solver computes the procedure for mixing the required gas mix of up to three gases. It
can even include the remaining mix in the bottle to be filled in the calculation. The gases are
displayed in the following order: the remaining gas in the bottle, added mix 1–3, the required
mix. For each mix, the composition, volume of the bottle (the actual, „water“ volume of the
bottle is specified) and gas pressure in the bottle are specified. If the volume of the gas is
unlimited (for instance, if supplied by a compressor at a constant pressure), enter the bottle
volume as zero. The mix composition may be entered either manually (after pressing the
CAL
,
or the analyzer can be switched to the measuring mode by pressing the key and the relevant
mix can be measured directly. After pressing the
CAL
is necessary to change the values press
. Then you can enter values . Press
MENU
to move the cursor in the order. Confirm
the selected value . After the data are entered, initiate the calculation by choice
MENU/
SOLVE
(because it is a first menu item, just double press
MENU
). The calculation may take
up to one minute. Upon completion, results are displayed in one of the three possible forms,
which can be switched between using the
MODE
key (see the example).