Neptune Explorer (NX)

The Neptune Explorer is a closed circuit rebreather which subscribes to the belief that one size does not fit all. The design concept of the NX is to allow the user to configure the unit to his/her personal requirements. The NX series of CCR's has the capability of the following scrubber material weights of 3.5, 4.7, 6, 7.8, 10, 12 and 15 pounds depending on the canister used. Canister diameters of 5, 6 and 8 inches are available. As of 1/23/06 the actual capacities of the 8 inch canister have not been measured. The canister is a radial design although the canister may be converted to axial with little effort to increase CO2 absorbent capacity for a given size. It is this ability that allows the NX can be configured to the requirements of dive. The 3.5 pound scrubber material weight may suitable only to users with small lung capacities. The current over the shoulder counterlungs are 6 liters in capacity. Counterlung configurations of 4, 5, 6, 7 and 8 liters are possible. The NX is basically neutral in fresh water. The user can add weight as necessary to affect the appropriate in-water trim. The NX-610 with the 3 liter cylinders weighs about 66 pounds. The NX-610 with 2 liter cylinders weighs about 58 pounds. The NX uses 4 AA batteries which will provide approximately 40 to 120 hours of operation depending on frequency of solenoid operation. The NX design concept is to use off the shelf components to reduce costs. The base MSRP for the basic Neptune Explorer is $5500 and it will only be sold to qualified instructors and certified CCR trained individuals. At this time the basic kit uses brass valves and fittings. Stainless Steel valves and fittings are available at an additional cost. A backshell is underdevelopment at this time.

The NX will be delivered as a kit. The owner must complete the assembly. The kit includes: NX Assembly Manual, OxyCheq 40# wings, OxyCheq harness, OxyCheq G-snap cylinder mounting system, Faber 2 liter cylinders, regulators with pressure gauges, an 810 canister, HS Explorer Model S (setpoint controller and decompression computer), HS Explorer PPO2-3 (secondary display), DSV, hoses counterlungs, oxygen sensors and parts necessary to complete the assembly.

Walter Ross wearing an NX-610 preparing for a dive at Peacock Springs State Park, Florida.

NX-68, NX-610 and NX-612 Canisters

Updated 1/23/2006