Introduction; Main Components - Cressi MC9 Manuel D'instructions

Introduction

Congratulations! Continual research and evolution carried out at
our technical centres, together with Cressi-sub' s usual reliability,
have led to the product you just purchased, which will allow you
to dive comfortably and safely for a long time.
All Cressi-sub regulators are certified for use up to 50 m/55 yd.
and some for use in cold water with temperatures < 10° C/50°F,
having got through the strict test at 4°C/39°F (+0 -2) prescribed
by the UNI EN 250:2000 according to the EC directive 89/686,
which sets the essential safety requisites of Individual Protection
Devices (DPI).

Main Components

Regulators' main task is reducing the pressure of the compres-
sed air contained in the tank to the same level as the environ-
ment' s, supplying breathable air when required by the diver.
They are composed of a "first stage", working as main pressure
reducer and a "second stage" (kept in the diver' s mouth), which
adjusts the pressure precisely to the same value as the environ-
ment' s. The regulator is part – together with tank, valves and
sling – of a complete underwater breathing system, known as
"SCUBA" (Self Container Underwater Breathing Apparatus).
This handbook describes all models of Cressi-sub range, all rea-
lized in high quality materials to guarantee pleasant dives and
high performance, together with the easiest ways of use and-
maintenance. The instructions and directions found in this manual
are based on the most up-to-date information about the equip-
ment available before printing.
Cressi Sub reserves the right to make changes at any time.
NOTE: This handbook does not replace a diving training cour-
se! All Cressi-sub devices must be used by divers who have
attended regular courses held by certified trainers.
Using underwater devices without a licence or the necessary
technical training may be dangerous for the diver' s safety and
life itself.
Besides, in order to guarantee the maximum safety, the devi-
ces must be serviced only by the producer or an authorized-
centre.
You can find your authorized Cressi-Sub center by
asking your dealer, or Cressi Sub S.p.A. itself (email:
info@cressi-sub.it).
WARNING: CRESSI-SUB DECLINE ANY RESPON-
SIBILITY FOR ANY SERVICING CARRIED OUT BY
UNAUTHORIZED PERSONNEL.
WARNING: SCUBA devices complying with EN
250:2000 standard must not be used by more
than a diver at the same time.
WARNING: in case the components of a SCUBA
are set and used by more than a diver at the same
time, their performance in cold water might not
satisfy the requisites prescribed by EN 250:2000
standard.
WARNING: In order to carry out a totally safe
dive, Cressi-sub recommend to use a tank supplied
with a valve featuring two separate outlet ports,
with which two complete regulatorsare to be con-
nected.
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