|
|
DATASHEET SEMICLOSED REBREATHER
|
Dräger SM III
|
Date: 11 April 2005 |
Selbstmischendes
Mischgas-Schwimmtauchgerät SM III
(helium-oxygen self mixing device)
|
Database semi closed rebreathers
by: J.W. Bech
|
|
Manufacturer |
Dräger |
|
|
Designer |
|
|
|
Model |
SM III |
|
|
Land of origin |
Germany |
|
|
Design year |
196? |
|
|
Special Note: |
Rare rebreather |
|
|
User group |
Military |
|
|
Magnetic characteristics |
Non
Magnetic/ Acoustic |
|
|
Part no: |
|
|
|
Working principle
|
Constant Mass Flow |
|
|
Gas type |
Oxygen - Helium |
|
|
Oxygen is added by means of
a first stage regulator with a fixed IP . Resulting in a constant
oxygen flow of 3 l/min independent of the depth! |
|
Helium is added by means of
a depth compensated first stage regulator AND a second stage
regulator reducing the IP above ambient pressure. (depth
compensated). |
|
|
|
|
|
|
|
|
The gas is mixed in a mix
tube before entering the loop. The system in supplied with two
switches who guard the pressure between the restrictors, in this way
warning the diver when the gas flow stops. |
|
|
|
|
|
|
|
|
Intended use |
Military |
|
|
Dimensions LxWxH
|
|
|
|
Device weight |
|
|
|
Intermediate Pressure |
? |
|
|
Overpressure valve |
|
Range |
|
Max depth |
200
meters + |
(mtrs) |
|
Used material for
housing/back plate |
glass fibre |
|
|
Pressure reducer |
|
|
|
Connection reducer – bottles |
|
|
|
Supply pressure |
200
bar, minimum 30 bar |
|
|
Umbilical connection |
Yes |
|
|
Manual bypass |
Yes |
|
|
pO2 measurement standard |
No |
Lamp guarding gas flow |
|
Pressure gauge range
|
0-200 bar |
Lamp fitted in mask |
|
Cylinders |
1 x
1,5 litre/ 1 x 3 litre He(?) |
|
|
Cylinder material |
Non-magnetic |
|
|
Cylinder thread |
G
5/8” |
|
|
Valve |
|
|
|
Designed for gas mix |
Self mixing O2-He |
|
|
Co2 absorption cartridge
capacity |
1,5
litre(?) |
|
|
Co2 absorption cartridge
rechargeable |
Yes
|
|
|
Co2 absorption cartridge
storage time |
? |
(month/year) |
|
Co2 absorption time testing
(CE) |
No |
|
|
Connections Co2 cartridge |
? |
|
|
Guaranteed absorption time |
|
|
|
Grade of absorption material |
|
|
|
Breathing bag material |
|
|
|
Inhale bag volume |
|
|
|
Exhale bag volume |
|
|
|
Total loop Volume |
Total volume 9 litre |
|
|
Operating temperature |
|
|
|
Magnetic signature |
low |
|
|
Colour (s) |
|
|
|
Worn |
On
the back |
|
|
FFM attached |
Yes |
(mask) |
|
Mouthpiece valve |
Yes |
|
|
Extra info: |
Low
acoustic signature |
|
|
Additional information: |
|
|
|
Email address owner: |
|
|
|
URL owner: |
|
|
|
If
you have any information to add this sheet please mail it to
jw.bech@quicknet.nl
References to source and names will always be added!
|
|
|
Info found: Ake Larsson,
Tauchtechnik G. Haux |
|
|
Origin:
http://www.therebreathersite.nl |
|
|
Info: Gerhard Haux Tauchtechnik I |
|
|
|
