Divesoft HE/02, Руководство пользователя

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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 mode for continuous filling, the limit values can be changed after pressing the MENU
button.
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
, 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 using
Menu/Solve (since it is first option, you can just press button twice). 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
key (see the example).
Example
There is remaining air with the pressure of 120 bars in the twin bottles with the volume of
2 × 12 liters (total volume of 24 liters). The required mix is trimix 18/40 with the required