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The chamber consists of a wet chamber, a dry chamber, and a sub-chamber. The wet chamber is used for dive experiments, the dry chamber is used as living quarters, and the sub-chamber is a supplementary room. All rooms have airtight doors and can be individually pressurized.
| Chamber (number of rooms) |
Dimensions (in meters) and shape |
volume | Explanation |
| Wet (1) | 3.6 ~ 6.2m vertical cylinder |
57 |
Half of the total volume is water i30 j |
| Dry (2) | 2.3 ~ 7.5m horizontal cylinder |
28 |
each has one service lock cylinder |
| Sub (2) | 2.5m spherical | 8 |
each with a service lock cylinder |
The environmental control system is capable of continuous elimination of carbon dioxide, moisture, and odors, as well as temperature and humidity control.
The gas system can automatically or manually pressurize and depressurize the chamber with various gases over a wide range of pressures. To supply a breathable atmosphere (a mixture of air, oxygen and helium), each chamber is connected to the gas reservoir via decompression valves. The concentrations of gas components can also be controlled.
Gas type Control system Air Manual pressurizing and depressurizing up to 150Kg/
/H(underwater breathing system)
Oxygen partial pressure control between 0.2 `1.0Kg/
Helium
(nitrogen)partial pressure control between 0`50.0
(and 0.8 ~ 10.0Kg/¬KX manual pressurizing between 0.5`2.5Kg/
automatic pressurizing between 0.05`0.5Kg/
and manual depressurizing up to 150Kg/
Information from various systems such as pressure and environmental controls are displayed on the central control unit, which can be monitored and operated by two people.
P) Studies of saturation diving down to 500 meter depths and short duration dives, and studies of the medical aspects of and diving apparatus involved in these dives
Q) Pressurization and underwater tests involving individual objects in pressures up to those found at a depth of 500 meters(1) Contact the Research Facilities Group of the Research Support Department at MARITEC, JAMSTEC.
(2) Requests for facilities use must be submitted at least one week before use. Please follow the directions in the "Request Form for Facilities use and Equipment."
(3) Please ask the person in charge for costs related to facilities use.
‘Head office in Yokosuka
@Natsushima-cho 2-15 Yokosuka City, Kanagawa Prefecture, 237-0061
@TEL: +81-468-67-9906 FAX: +81-468-67-9905
Copyright 1998 JAMSTEC. All Right Reserved.
