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Posted By Jeannette Copeland on 21 November 2003
The NEC at Birmingham was once again the venue for the dive show this weekend. For tech divers, there were quite a number of discoveries to check out, even some that were not present at DEMA this year. Quite honestly, I was impressed! The sheer amount of rebreathers at one dive show was phenomenal along with many new innovations for use by Tech divers above and below the water.
Custom Divers have a new buoyancy system called VBS Wings (Variable
Buoyancy System); suitable for use with most rebreathers it offers three
expandable compartments that provide variable buoyancy capability. Available
in two sizes, the largest of which has a whopping 50-76 pounds of buoyancy
per bladder. The complete systemas are supplied with harness shoulder pads,
accessory pouch and Billy rings. For a full product range,
www.customdivers.com
Central Compressor Consultants were representing the Unico mixing system.
The system can produce Nitrox, Heliair and Trimix and can be connected to
compressors of any make; providing they are in good condition and conform to
DIN 3188. The mixer is capable of creating mixes up to 40% oxygen content. A
computer program generates the formula to enter into the mixer and produce
the desired mix, which is then passed through the compressor for cylinder
filling. More details are available from
www.gascompressor.co.uk
Innes McCartney was available to sign copies of his books and chat about
searching for shipwrecks with fellow enthusiasts. His presentations at the
show were met with a huge amount of enthusiasm from the diving community.
Having seen his presentation several years ago, I would certainly recommend
it to anyone with an interest in diving wrecks, and even those without - his
passion for wrecks, especially submarines is in abundance! His books and
videos are available online at
www.periscopepublishing.com
Melton Divers have become the UK agent for Azimuth SCR and Nemesis CCR
rebreathers. The Azimuth is a CE approved rebreather that is capable of
delivering two gas mixes, with an adjustable flow rate. Although there has
been talk of the Azimuth in the Uk for some time, it has yet to gain
momentum in the same way of other rebreathers on the market. Janice and
Terry have set up a dedicated side to their business to support the
rebreathers; Melton Rebreathers and are generously offering try dive
sessions on the units when available. Should you decide to purchase a unit
from them, the fee from that session will be deducted from the purchase
price of the rebreather. For more information on these rebreathers and
training contact Janice or Terry
www.meltonrebreathers.co.uk
Vandagraph Ltd. were presenting their newly patented “Quick-Ox” Oxygen
Sampling System. John Lamb from Vandagraph and the author of “The practice
of Oxygen Measurement for Divers”. This clever little device provides a
chamber to hold the gas in a still environment at 1 bar; the most ideal
conditions for gas testing. This is usually achieved by using a restrictor
to reduce the gas flow delivered from the cylinder, however, this was far
slower than the new device, which simply has a one way valve to contain the
gas around the sensor face.
For more information on Vandagraph
analysers including their combined Helium and Oxygen sensor
www.vandagraph.co.uk
Abyss Uk had the first showing of the rebreather they are planning to
distribute following CE testing in the New Year, the Submatix. Another
Semi-closed rebreather, this system is a two gas system, and was designed by
German Uwe Lessman. The unit is very small and compact with two liter
cylinders and a predicted 3 hour scrubber life. The cylinder valves are
German O2 valves (opposite DIN type) and there is a small switch on the
bottom of the case for gas switching. Standard will be a PO2 monitor and
bailout regulator.
www.submatix.com
Analox launched their combined Helium and Oxygen Analyser in the Uk at the dive show. This unit measure not only the content of the two gases being analyzed, but also has a calculation to show the balance percentage. www.analox.com
The rebreather try-dive pool was completely booked on both days, with BSAC
instructors showing divers how to use Semi closed and closed circuit
rebreathers and a short session under water, giving anyone interested a look
at the bubble-free underwater world. The Drager and Inspiration units were
in use at the pool. www.bsac.co.uk