Seac Sub SYNCHRO Serie Manuel D'instructions page 21

Fig. 1
Use only CE certified pressure gauges provid-
ed with standard thread. Do not use any type
of adapter between the first stage and the
high pressure hose connection.
The D-SYNCHRO first stage has been designed
to operate with cylinder working pressures up
to 300 bar. For pressure exceeding 230 bar it
is advisable to use the version provided with
the 300 bar thread connection (THREAD CON-
NECTION ISO 12209-2/3.2; 300 BAR) imple-
mented in our model D-SYNCHRO ICE
The D-SYNCHRO first stage is implemented in
the following versions:
International YOKE connection
12209-1 230 BAR)
THREAD connection (ISO 12209-2/3.5; 230
BAR )
D-SYNCHRO ICE REGULATOR
First stage has the same characteristics as the
D-SYNCHRO version, but with the addition of
the innovative ANTIFREEZE DRY SYSTEM
(Fig.3).
This system enables diving under extreme
temperature conditions, while maintaining
operating characteristics.
An antifreeze silicone separating diaphragm,
placed at the end of the first stage insulates
the regulator mechanics from the outside.
The external pressure needed for a correct
and constant equilibrium of the first stage is
transmitted by means of a simple and func-
tional mechanism that assures correct func-
tioning under any environmental, pressure,
or immersion conditions.
This version is suggested for those who dive
in cold waters or in mountain lakes where the
22
Warning!
FIRST STAGE
Fig. 2
water temperature may reach temperatures
near zero and where the outdoor tempera-
ture goes well below zero.
The D-SYNCHRO ICE version first stage is im-
plemented in the following versions:
International
12209-1 230 BAR)
THREAD connection (ISO 12209-2/3.5; 230
BAR)
Thread connection (ISO 12209-2/3.2; 300
BAR)
Fig. 3
(ISO
M-SYNCHRO REGULATOR
An extremely compact and rounded first
stage.
Optimal functioning of the M-Synchro version
is guaranteed by a balanced diaphragm sys-
tem that allows the diver to maintain ab-
solutely constant intermediate pressure in re-
lation to the internal tank pressure as well as
the depth reached. Advanced CNC machining
of copper-plated brass bar stock offers opti-
mal results in terms of precision and reliabili-
YOKE connection
FIRST STAGE
(ISO