By request we introduced dust caps for the O2ptima rebreather head to seal the cartridge without removing it. Later, we introduced calibration caps so a diver doesn’t need to fill the loop multiple times to calibrate the unit. Now we use the calibration caps for both uses. Take the thread protectors from the harness mounting bolts (5/16”) and slide one over the inflator inlet nipple on the calibration cap to seal the head. I am pulling the Dust Caps off the market because I have received a second report of a damaged head. Both heads were pressurized when the caps were put on for storage, but the diver didn’t shut down the oxygen supply. If the Hammerhead wakes up it will inject O2. Do I need to say more?
Use the calibration caps to seal the head if need be. For those that have a set of dust caps, send them to us in Lake City and we can convert them to calibration caps with the inflator inlet for $25. Email firstname.lastname@example.org
We have new software called Dive Logbook for the NiTek Trio and NiTek Duo computers. The scrolling marquis on the NiTek Trio can be changed via the software. Dive Logbook is not compatible with NiTek Logic, so any dives recorded in Logic will not incorporate into Logbook. The NiTek Plus will continue to use NiTek Logic software. Dive Logbook is available for download listed under the “Downloads” tab in the NiTek Trio page of our online catalog.
The NiTek Trio uses the Bulhman algorithm like the NiTek Duo and other Dive Rite computers. The deep stop feature is not new gradient factors in the computer, but rather a simple method of incorporating deep stops without adding time to the shallower stops.
When deep stops are turned on it will add deep stops to any dive with more than 5 minutes of decompression. Deep stops are calculated by splitting the difference between max depth and the first scheduled shallow stop. For instance if you make a 100’ dive for 60 minutes and have a 30’ stop the first deep stop will be at 60’ for 1 minute. It will continue to give you 1 minute stops every 10’ until you get to the scheduled 30’ stop. The Trio is not designed to be a technical computer, but an advanced recreational computer. It doesn’t do Trimix so deep stops will not be accurate for helium. The Trio will slow your ascent and let you do deep stops without suffering increased time at shallower stops.