General limits
The TRITON is a mCCR rebreather, it is not designed for auto-working. The rebreather
needs the human operation to work properly. The diver must regularly check PpO
2
to be in
a right range. The acceptable values for the PpO
2
range are:
Table 2.1 – Pp0
2
range depending on the depth
depth [m] Pp0
2
bandwidth [b]
0 - 15 0.7 - 1
15 - 100 1 - 1.3
It is important for the diver to remember to limit speed of the descent and speed of ascent in
order to:
Let the rebreather fill in of gas during the descent
To be able to manage de Pp0
2
during the descent and more specifically during the ascent!
Depth’s Limits
Table 2.2 is showing the possible depth according to the configuration of the TRITON.
Table 2.2 – Possible depth according to the configuration of the TRITON
Maximum depth [m] Configuration
6 m max Pur oxygen
40 m max mCCR, air diluent
100 m max mCCR, trimix or heliox diluent
Time limits
The dive time can be limited by two factors:
1. Quantity of gas
2. Scrubber duration
Quantity of gas:
For a closed circuit dive, the gas quantity is rarely a limitation. But it is still important to
check the pressure of the oxygen and diluent tank. However, it’s possible to take an off
board source of gas.
Scrubber duration:
The scrubber duration in the conditions of the EC standard
1
is for 2.2 kg of SOFNOLIME.
1
flow: 40L/min, temperature: 4˚C, humidity: 80%, and a production of 1.6L/min of CO
2
7
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