Manual rEvo III
14
2.10 Upright position:
The rEvo has been designed in such a way that it can
easily stand upright in a detached position, even without
cylinders.
Rubber ‘feet’ are mounted to avoid possible damage to
the case.
2.11 OPV:
The ‘Over-Pressure Valve’ is mounted on the
exhale lung, at the top of the rebreather. This
valve ensures venting of the rebreather in
case of overpressure, for example when an
ascent with a closed mouthpiece occurs (in
case of open circuit bail-out). The relief
pressure is factory set and should not be
adjusted.
2.12 Measuring PPO2 with the rEvodream and the HUDs:
In order to be able to monitor
the PPO2 constantly, each rEvo
is
equipped
with
two
rEvodreams. Each rEvodream
has an LCD display, moun-ted
on the pressure gauge and a
HUD. The HUD has three LEDs
(orange, green & red) to
indicate the PPO2 value. The
LCD display is normally used to
check and compare the values
indicated by the HUD and to
calibrate the unit.
The basic philosophy of the
rEvodream
is
that
when
everything is OK and optimal (correct PPO2), there is a constant permanent light
signal (a continuous green in the middle on the HUD: green means: OK, safe). Small
deviations over or under the optimal PPO2 will show a short pulse of orange (under,
