Author: Carsten Schulz
Hammerhead KISS story
2003 Kevin Juergenson started to think about the HH electronics for the
Jetsam KISS rebreather. In the KISS rebreather group Kevin asked if there
was any interest to get
electronics and within a few days ten users answered with “YES!”. So Kevin
started to build the prototype of the first HH KISS series. In cooperation
with Gordon Smith from Jetsam who builds the head for the HH, Kevin made up
his mind how to get the best results. In many discussions on the web we
talked about different connectors, e.g. 90°-elbow or straight, about the
length of wires, the length of hoses and of course about the best place for
the solenoid. Meanwhile the first test dives were made. Finally the result
matched most peoples opinion and in autumn 2004 the HH electronics were
delivered by Kevin.
In a big
box the HH, including the head, both hand-sets and the DIVA, my HH finally
reached my home. With a few parts from Swagelok, hoses and connectors, I
could start to install the HH.
biggest problem was the installation of the oxygen sensors to the HH. The
connection from the sensors to the head is made by two wires with small
banana plugs. The banana plugs and the sensors interfere and the head can
not be placed correctly on the KISS. The banana plugs break easily when
bended so I took another way to make it fit. I cut off the label of the
oxygen sensors and took off the upper part and finally there was enough
place for the banana plugs and the sensors. The head could now be installed
as it should be. As there are many different possible positions for the
solenoid, I choose to install the solenoid inside the counterlung-housing at
the bottom. The solenoid is protected very well and the counterlung is not
affected by the solenoid. The wire to the head is long enough and runs
inside the counterlung-housing. The solenoid is held by two small screws.
The solenoid is then connected to the oxygen inlet, which was changed from
the 90°-elbow into a Swagelok-T, with a Swagelok hose. The oxygen inlet to
the solenoid is a short Swagelok hose which comes from the first stage. The
first stage feeds the KISS valve as well as the solenoid. The KISS valve can
be shut off from the oxygen supply by a Swagelok shut-off valve. This meets
my actual needs. In future I will run the KISS with two oxygen tanks. The
DIVA runs along the breathing hose and is attached to the DSV by simple
means. It can be turned in either direction during the dive.
testing the waterproof installation I learned how to work with the hand-sets
and the integrated trimix dive computer. I set up the settings of the dive
computer and finally did my first E-KISS dive on my sofa. Everything worked
very well, all alarms I could activate on the dry were running and I felt
ready for a dive a week later.
test dive brought me to the Vinkeveense Plassen near Amsterdam and a friend
of mine managed to dive with me. All things were running perfect, I did many
tests underwater and I’m now totally happy with my new E-KISS and I look
forward to make many nice dives with the HH electronics and my KISS!