User manual

Poseidon MKVI User Manual
Chapter 1
Page 35
If there is no gap between the end plate and the bottom edge of the cartridge housing it likely
means that you have forgotten to install the top axial o-ring on top of the CO
2
absorbent cartridge.
If this is the case, return to Step 14 (above) and install the axial o-ring then resume.
WARNING:
Because CO
2
exists naturally in the atmosphere, a SofnoDive
797 cartridge openly exposed to the atmosphere will expire in 24
hours. Use of the cartridge after such exposure may lead to high
PCO
2
during a dive. Read the DANGER notice on page 1-14.
IMPORTANT: Do NOT leave partially- or fully-spent
cartridges lying around a dive site where they may be mistaken
for serviceable cartridges. Use a permanent, bold black marker
and write the status of a cartridge on the side after removing it
from the Poseidon MKVI. Discard promptly and permanently if the
cartridge is completely used. It is acceptable to store a partially
used cartridge in a zip-type plastic bag between dives, provided
there is NO potential for entry of air into the enclosure. When in
doubt, leave the cartridge inside the Poseidon MKVI and store it
with the mouthpiece in the open-circuit (OC) switch position to
seal the breathing loop.
Make sure the OPV is in the maximum closed position.
When your unit has been assembled, go through the Pre-Dive checklist located on the
sticker placed on the back side of the primary display. The Pre-Dive checklist is also located
in chapter 2 on page 46.