Swift (non GPS)
Next generation smart transmitter allows divers to read gas management data directly from your air integrated dive computer. The collision avoidance protocol which allows for multiple transmitters to be used at the same time, with a lower likelihood of dropped communications. It is designed and built in Canada for demanding divers of all proficiency levels.
The SWIFT (non GPS Version) tank pressure wireless transmitter is Nitrox Ready and compatible† with the current firmware release of those specific models of Shearwater Research brand dive computers that support hoseless air integration. This includes the Shearwater Tern TX, Perdix-AI, Perdix 2, Teric, Petrel 3, NERD 2 and the new Peregrine TX model dive computers currently sold by Trident Warriors, but does NOT include the Shearwater NERD 1, Petrel, Petrel 2, Peregrine (without the “TX”), Perdix (without the “AI”), or Tern (without the “TX”). A key feature of the SWIFT is an active interference avoidance system that allows multiple transmitters to work together.
The transmitter is oxygen compatible, rated for depth up to { 650 ft | 200 m }, and has a user replaceable and widely available CR2 photo battery. The battery life is approximately 300 dive hours or five years of storage. The Shearwater brand dive computers will display a low battery warning that indicates the transmitter number approximately 20 hours before the transmitter battery needs to be replaced. Each transmitter has its own unique ID and up to four transmitters can be linked to compatible Shearwater model dive computers. Shearwater has determined that as many as twenty SWIFT transmitters can operate in proximity to each other without signal interference. The transmitter screws in to a high-pressure (HP) port of the first stage regulator mounted on the tank to be monitored.
The transmitter uses the 38kHz radio frequency to signal data. An antenna inside the dive computer receives the RF data when it is positioned within { 72 in (6 ft) |1.8 m } of the transmitter and within a zone parallel or at a 45 degree angle to the transmitter. Best reception is achieved when the dive computer and transmitter are within { 3 ft | 0.9 m } of each other. The LED status indicator will flash green when a transmission is sent and flash red if an interfering signal is detected. During a dive you may at times move the dive computer so that is out of the signal pattern of the transmitter, resulting in a temporary interruption of the link. The link may also be interrupted if the dive computer is within { 3 ft | 0.9 m } of a running DPV or after a strobe light flashes. The link will be restored within 5 seconds after the dive computer is reoriented, moved back into range, or the RF noise clears. For technical diving, Trident Warriors recommends following the best practice of also including a standard analog SPG on the regulator as a backup.
In rare cases, the body of some first stage regulator designs will have hose ports oriented such there is not room to accept a wireless tank pressure transmitter without interfering with hose routing. The solution is to use a standoff adapter, or some divers prefer to use a short HP hose pigtail (do not forget the required Air Spool) in place of the standoff.
Trident Warriors highly recommends that you use a small 6” HP Hose and an air spool between the hose and the transmitter. This ideally would be strapped carefully to another hose coming from the first stage along the same route using fabric Velcro. This will protect your transmitter from damage by not presenting itself as a ‘handle’ for boat crews or the ‘unknowing’ from grabbing your equipment from an enticing looking handle similar to your cylinder valve. It is a small upgrade to save a lot of heartache.
† The SWIFT also works with those specific models of Aqualung, Apeks, Aeris, Hollis, Oceanic, Sherwood, and Tusa brand dive computers that support hose less air integration with PPS transmitters having the FCC ID = MH-8A number. This brings the same collision detection and avoidance benefits to those other brands of dive computers. The SWIFT transmitter is NOT compatible with Garmin brand dive computers which uses an entirely different method for communication.
Full Features
- Advanced collision avoidance system ensures reliability using multiple transmitters
- Randomized transmit interval allows for reliable simultaneous use of multiple Swift transmitters
- LED status indicator
- Easy ‘no tools’ installation and removal on divers first stage
- Compatible with all existing air integrated Shearwater dive computers and many other computers already on the market
Technical Specifications
- Depth limit: 200msw
- Operating temperature range +4°C to +34°C
- Short-term (hours) temperature range: -10°C to +50°C
- Pressure port: 7/16″ -20UNF
- Rated air pressure: 300 bar / 4350 psi
- Pressure reporting resolution: 0.14 bar / 2 psi
- HP port proof pressure: 450 bar / 6525 psi
- Accuracy: 5% full scale
- Zero offset: <3.5 bar / 50 psi
- Activation pressure: 7 bar / 100 psi
- De-activation pressure: 3.5 bar / 50 psi
- Cover screws: 1.5mm hex
- Body o-ring: 24×1.5mm
- HP port o-ring: AS568-904 75A Viton
Dimensions
- Size 76mm (L) x 34mm (D)
- Weight 135g
Battery
- Battery type: CR2 3V Lithium (User replaceable)
- Ships with and recommended battery type: Panasonic CR2 Industrial Lithium
- Battery Capacity (approx): 2.55 Wh
- Battery life: Up to 300 dive hours (HP pressure present) 5 year storage time
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