7
1.35...1.45
Green is flashing
1.45...1.55
Green is glowing
Red is glowing
1.55...1.65
Red is glowing
>1.65
Red is flashing
6.
Ca
libration
To switch calibration on it is recommended to close wet contacts 3
times in the PO2 indication mode within 1.5 seconds.
This will require some skill, and possibly, you will not succeed from
the first trial. Try several times.
This procedure is designed on purpose to avoid any possibility of
calibration mode switch on by mistake when swimming on surface.
When switching calibration mode on HUD-A will display one of two
calibration options: by air or by oxygen.
In case of choice of calibration by air figures 2 and 1 will alternatively
flash with 2Hz frequency.
In case of choice of calibraton by oxygen figures 9 and 8 will
alternatively flash.
