User manual

Poseidon MKVI User Manual
Chapter 1 Page 23
8. 1st stages
Connect the 16 cm Low Pressure hose to a IP port on the diluent 1st stage and to the 9/16”
connection on the pneumatics block marked DIL.
Make sure the connection o-ring is in place and without damages. See Figure 1-32.
Figure 1-33 illustrate the assembly of the diluent cylinder with the gas processor stack, analo-
gous to that of attaching the oxygen cylinder. Always inspect cylinder and regulator threads
and the regulator o-ring before assembly. If the regulator o-ring is damaged, gouged, scratched
or otherwise worn or cut, replace it with an appropriate Poseidon oxygen-cleaned o-ring.
Figure 1-34. Align the oxygen regulator with
the oxygen cylinder female DIN thread. Push
it in and hand tighten the oxygen swivel nut.
Connect the oxygen clean (white marking) 16 cm Low Pressure hose to a IP port on the
oxygen clean 1st stage and to the 9/16” connection on the pneumatics block marked O
2
. See
Figure 1-32. Make sure the connection o-ring is in place and without damages.
Figure 1-34 show how to connect the oxygen regulator to the oxygen cylinder valve. Both the
cylinder tting and the regulator tting and o-ring should be carefully inspected for signs of
organic debris, grease, oil, and hydrocarbons. If the regulator o-ring is damaged, gouged,
scratched or otherwise worn or cut, replace it with an appropriate Poseidon oxygen-cleaned
o-ring.
The oxygen cylinder valve (for European users) is an M26x2 female DIN thread. This is larger
than the G-5/8 DIN thread that is commonly used in both the United States and in Europe for
compressed air Scuba. The purpose of using different threads is to make it absolutely clear
that the oxygen delivery system is different from the diluent delivery system. Accidental con-
nection and use of diluent through the oxygen regulator can be considered a compromise of
the oxygen cleaning requirements. If contamination occurs, the compromised components
should be taken to an authorized Poseidon Tech Center representative or a qualied tech dive
shop technician for oxygen cleaning.
Figure 1-33. Align the diluent regulator with
the diluent cylinder female DIN thread. Push
it in and hand tighten the diluent regulator
swivel nut.
Figure 1-32.
16 cm Low Pressure hose’s
to the pneumatics block.