ALL INFORMATION IS PROPRIETARY AND MAY NOT BE COPIED WITHOUT WRITTEN PERMISSION OF SUBMERSIBLE SYSTEMS.
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G:\Mktg\MILT\Heed 3 tech manual
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SERIALIZATION:
All HEED systems are identified with individual serial numbers. Serial numbers are located on the regulator to the
right of the mouthpiece.
HEED 3 SPECIFICATIONS
MODEL #
175
300
Cylinder Capacity
1.7 cu ft / 48 liters
3 cu ft / 85 liters
Water Capacity
16 cu in / .3 liters
30 cu in / .5 liters
Service Pressure
3000 psi / 207 bar
3000 psi / 207 bar
Length
8.75" / 22 cm
13.4” / 34 cm
Diameter
2.25" / 5.7 cm
2.25" / 5.7 cm
Weight
1.5 lb / .7 kg
2.2 lb. / 1 kg
Surface Breaths*
32
57
Cylinder Material
Aluminum
– black anodized
Regulator Type
Integrated Balanced Single Stage Demand
Pressure Relief
Integrated in Regulator
Operational Temperature
-22ºF / 30ºC < +158ºF / +70ºC
Altitude Limits
Tested at up to 35,000 ft / 10,500 m
Cylinder Rating
DOT 3AL 3000 or CE Marked
Duration of Breathing
Approx. 2-
5 minutes. Varies upon user’s lung capacity, physical
exertion, depth of usage in water and several other factors.
*Based on 1.5 liters per breath
