Cypress 2 User manual

CYPRES 2 User’s Guide
- english version -
CYPRES 2
Reliability made in Germany
Smoke Jumper
CYPRES 2
User‘s Guide

page 2 - Smoke Jumper CYPRES 2 User’s Guide -
Congratulations on your choice of CYPRES, the
surely safest and most accurate AAD currently
available.
Like most skydivers, you probably assume you
will always have time to deploy your reserve
canopy yourself, and that situations requiring use
of an automatic activation device always happen
to others. We do hope you will never have such
trouble, and that your CYPRES will never have to
take action to save your life.
Should CYPRES ever decide to activate your
reserve, it will most likely happen at a moment
which, no matter how experienced and cautious
you are, justies that you haven‘t left your safety
to chance.
Smoke Jumper CYPRES 2
User’s Guide
- english version -
Airtec GmbH & Co. KG Safety Systems
CYPRES 2 User’s Guide
- english version -
CYPRES 2
Reliability made in Germany

- Smoke Jumper CYPRES 2 User’s Guide - page 3
Contents
What a Smoke Jumper CYPRES 2 is........... 3
1. Function ...................................................... 4
1.1 How CYPRES works................................. 4
1.2 Components ............................................... 6
1.3 Power supply.............................................. 7
2. How to handle the Smoke Jumper CYPRES 2..... 8
2.1 How to deal with the control unit .............. 8
2.2 How to check the operativeness................. 9
2.3 How to handle in practical use................. 10
3. Access to unit information....................... 12
4. Changing the release unit(s).................... 13
5. Water contact............................................ 15
6. Important notes for users........................ 15
7. Error Display ........................................... 16
8. Installation................................................ 17
9. Technical service....................................... 18
10. Repacking of the reserves...................... 21
11. Regarding Air Travel ............................. 23
12. Technical Data ........................................ 24
13. Warranty................................................. 25
14. Disclaimer ............................................... 26
15. Index........................................................ 27
16. Packing List ............................................ 28
Trade Marks ................................................. 28

page 4 - Smoke Jumper CYPRES 2 User’s Guide -
The Smoke Jumper CYPRES 2 is an Automatic
Activation Device for parachutes, which is built
for the needs of Smoke Jumper activities.
It initiates the reserve deployment sequence; if the
Smoke Jumper should still have a vertical speed
of more than 35 meters per second (78 mph) at
approximately 1200 ft AGL assuming the arming
handle was pulled at 3000 ft AGL.
The Smoke Jumper CYPRES 2 does its job by
severing the reserve closing loop allowing the
spring loaded pilotchute in the reserve container
to push away the aps of the container and to
jump out into the slipstream and initiate the re-
serve opening.
What a Smoke Jumper CYPRES 2 is

- Smoke Jumper CYPRES 2 User’s Guide - page 5
1. Function
1.1 How CYPRES works
The processing unit contains a factory-pro-
grammed microprocessor that is capable of real-
time calculations of the jumper‘s altitude and rate
of descent based on barometric pressure.
By monitoring this data, certain criteria are gener-
ated from which conclusions are drawn. Should
the conclusion be that the jumper is in a danger-
ous situation (i.e. still in freefall at a low altitude)
the processing unit triggers the release unit which
initiates the reserve deployment sequence.
The release unit (cutter) system for the reserve
container is completely independent of the rig‘s
primary system, because it does not pull the rip-
cord pin out of the closing loop, but rather cuts
the loop inside the reserve container to release the
pilot chute.
Initiating the reserve deployment sequence by
cutting the loop is a method invented and patented
by the founder of Airtec, Helmut Cloth, in 1987.
The CYPRES‘ activation system has these advan-
tages:
• The deployment sequence of the reserve para-
chute can be initiated in two different ways.
One method is by the jumper pulling the re-
serve release handle. The other method is used
by CYPRES
it automatically cuts the closing
loop.
• Mechanical components are reduced to a sin-
gle movable piston in the release unit.
• The activation system is located inside the re-
serve container where it is not exposed to ex-
cessive shock or other adverse inuences.
• The system is unobtrusive and can be installed
so that it is undetectable from the outside.

page 6 - Smoke Jumper CYPRES 2 User’s Guide -
The distance which the piston moves in case of an
activation is approx. 5 mm.
The release unit (cutter) is a unique design specif-
ically developed for CYPRES. Features include
a completely self-contained enclosure to avoid
expelling anything during activation.
During an 18 month long investigation by BAM
(Bundesanstalt für Materialprüfung), Berlin, 99
release units were tested. The result is that BAM
and the U.S. DOT have classied the CYPRES as
being non-hazardous.
Due to its high reliability and other properties, the
CYPRES release unit is currently being used in
aerospace applications (satellites).
• The system is unobtrusive and can be installed
so that it is undetectable from the outside.
Release unit
(cutter) with
elastic keeper
Functional diagram:
reserve
closing
loop
blade plastic guide
stainless
steel body

- Smoke Jumper CYPRES 2 User’s Guide - page 7
Please do not:
- pull
- lift
- carry or
- throw CYPRES by the cables
processing unit
control unit
release unit
(cutter)
1.2 Components
CYPRES consists of a control unit, a processing
unit and one release unit (cutter) for 1-pin reserve
container or two release units (cutters) for 2-pin
reserve container.

page 8 - Smoke Jumper CYPRES 2 User’s Guide -
1.3 Power supply
No attention is needed to the power supply of
Smoke Jumper CYPRES 2.
The unit is designed to function from the date
of manufacture until the rst maintenance, from
the rst maintenance to the second maintenance,
and from the second maintenance until the end of
warranty time without limitations concerning the
number of jumps. If a Smoke Jumper CYPRES 2
should cease to function due to a faulty power
supply prior to the maintenance due date, Airtec
will take care of this with the highest priority.

- Smoke Jumper CYPRES 2 User’s Guide - page 9
wait!
click
wait! wait!
click click
self-test and
calibration unit
switched on
click
light
appears
light
appears
light
appears
The push button on the control unit should be
pressed with the ngertip alone; please do not use
a ngernail or any object. Use a short clicking ac-
tion in the middle of the button. You should fa-
miliarize yourself with switching Smoke Jumper
CYPRES 2 on to be able to do the functioning
test.
With this Smoke Jumper CYPRES 2, you can use
the control unit only to check the operativeness.
Nothing else.
Do the operativeness check prior to every rst
jump of a day.
2. How to handle the Smoke Jumper CYPRES 2
2.1 How to deal with the control unit
The functioning test of the Smoke Jumper
CYPRES 2 is initiated by pressing the push but-
ton four times with very short clicks. Start the
switch-on cycle by clicking the button once. After
approx. one second, the red LED-light will glow.
You must acknowledge the red light immedi-
ately by clicking the button again. This sequence
- a click following appearance of the red light -
will be repeated two more times. After a total of
four clicks, Smoke Jumper CYPRES 2 goes into
self-test mode. If you do not act promptly after
seeing the LEDlight, or if you push the button to
soon, Smoke Jumper CYPRES 2 will ignore the

page 10 - Smoke Jumper CYPRES 2 User’s Guide -
switch-on attempt. This four-click initiation cycle
has been designed to avoid accidental switch-on.
Once the switch-on procedure is nished, the unit
will run through its self-test. Initially, the display
will show the number „10“, and then a countdown
ending in „0“.
Between „2“ an „0“ the unit will interrupt and
show the actual airpressure in hPa (that is equiva-
lent to millibars). It will be a value between 700
and 1050.
HPa is the scale the Smoke Jumper CYPRES 2
works with.
When you see the „0“ at the end of the selftest
then the functioning test has successfully nished
and the display will go blank again, stating that
the unit is ready for work.
2.2 How to check the operativeness
Perform a switch on procedure (see chapter 2.1)
whereupon automatically the selftest will be car-
ried out.
The selftest ends showing a 0 on the display for 1
second and then the display goes blank.
After this procedure the unit has shown its opera-
tiveness.
Conduct this operativeness check prior to every
rst jump of a day.