POSEIDON SE7EN+ - Appendix 2; Introduction

Poseidon SE7EN+ User Manual
Appendix 2
Appendix 2
DECO 40 / DECO TRIMIX 48 / DECO TRIMIX 60 / DEEP 100
1. Introduction
WARNING:
The battery is your personal decompression diving key, do not
lend it to anyone who is not properly trained in its use.
Only properly trained divers are allowed to use either of the
decompression-enabled battery modules with a SE7EN+
rebreather.
Figure A2-1. The Poseidon SE7EN+ Battery range.
Page 84
WARNING:
Diving deeper than 40m affects the canister duration. The canister
has been tested for a duration of 130 minutes at 40m. According
to EN 14143:2013 the canister duration is to be determined via
a full dive prole. This is proven within the formal testing of
the Poseidon SE7EN+ by an accredited laboratory. Conducting
a 100m dive with 10 minutes bottom time, using a repackable
canister (Sofnodive 797) it was determined that such a dive
prole is within the canister duration. The dive was carried out
using a 11/69 Trimix following a dive plan with decompression
stops according to DCAP. Test conditions were as follows;
Water temp 4°C, and a breathing rate of 40 lpm producing 1.6
l CO2 per minute at STPD (Standard Temperature & Pressure,
Dry). Refer to chapter 1, page 32 for more information.
The SE7EN+ can support decompression diving. To be able to perform decompression dives,
you need two things: 1) the appropriate training, and 2) a decompression-enabled battery
module.
The decompression battery module is available in four versions: Blue, Yellow, White or Black.
- The Yellow battery module allows decompression dives to a maximum depth of 40m with air
in the on board diluent gas.
- The Blue battery module allows decompression dives to 48m with normoxic trimix minimum
16% oxygen content in the on board diluent gas.
- The White battery module allows decompression dives to 60m with normoxic trimix minimum
16% oxygen content in the on board diluent gas.
- The Black battery module allows decompression dives to 100m with hypoxic trimix minimum
1% oxygen content in the on board diluent gas.
The decompression diving battery modules give you the opportunity to do both recreational
no-decompression diving and technical diving without changing the battery or SE7EN+
rmware.
The ve different battery modules, referred to as the “Recreational 40m”, “Deco 40m”, “Deco
48m Trimix”, “Deco 60m Trimix” and “Deep 100m” batteries, each have different hardware
keys. They are all independent from each other and are not sensitive to rmware changes.