Air Control Module

Air Control Module

Air Control Module – ACM
OCEAN REEF ACM, Air control module is a lightweight, portable control box for use in surface supplied air diving operations. The ACM controls the diver’s air supply, communications and monitors the diver’s depth. It allows two divers full duplex underwater communication. The ACM is also available without communications. The air supply can be either from a low pressure compressor or high-pressure cylinders. The ACM’s adjustable first stage regulator reduces the high-pressure air and supplies low pressure through the umbilical to the diver’s breathing system. High pressure yokes with DIN adapters permit U.S. standard scuba cylinders or DIN valve cylinders to be used. A low pressure air supply fitting allows for a L.P. compressor to be used as the primary air source. A complete pneumo system with dual reading gauges (both US Standard and Metric) is provided for each diver, as well as a shut-off/bleed system that uses two high-pressure feed lines which allows changing of used cylinders without interruption of the diving operation. Shut off valves allow the isolation of each diver’s air supply. The lightweight, high impact polyethylene plastic case and extra thick corners ensure exceptional strength and a long work life. An O-ring seal protects hardware from moisture when the case is closed.

A. The Communication unit is a multipurpose intercommunication system that provides reliable and clear communications between a topside operator (tender) and one or more surface-supported divers.

B. Depth Gauge/Pneumo Systems: Dual reading gauges continuously monitoring the diver’s depths from 0-70m (0-230ft). Maximum recommended user depth: 130 FSW.

C. Depth Monitoring/Pneumo Knob is used to meter the flow of air used for depth measurement.

D. The Stainless Steel Air Outlets fittings connect the diver’s air supply hose to the ACM, providing a strong, reliable, corrosion resistant connection. Shut-off valves allow the isolation of one diver’s air supply from the other.

E. Regulator Adjustment Knob controls the air pressure delivered to the diver’s umbilical. Variable pressure settings from are obtainable.

F. Selector Valve Handle is used to choose either one of the air supply cylinders. Individual cylinders may be changed out with no interruption of the dive.

G. High Pressure (HP) Supply Gauges directly monitor the pressure in each of the air supply cylinders.


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