SKYLOTEC DEUS 7300 Instructions D'utilisation page 11

DEUS 7300 Series controlled descent devices
are ideal for applications where longer descents
and heavy use are necessary. Heavy use includes
regular, repetitive use, day after day, OR frequent
continuous use over shorter periods of time such
as during mass evacuation scenarios. Following is
a more detailed description of the various features
and characteristics of use of DEUS 7300 Series
devices.
No User Adjustments. The simplicity of the
DEUS 7300 Series is that there are no user
adjustments – no knobs, handles, levers, switches
or cams. The device is designed this way to
minimize opportunities for "operator error" and to
simplify training.
Automatic or Manual Control. Descent with
DEUS 7300 Series devices can be controlled
automatically or manually.
• Automatic mode is always enabled and
descent speed is always limited.
• Descent speed can be manually controlled to
any speed slower than the automatic-mode
limit of the device simply by pulling on the
unloaded side of the rope running through the
device. This can be done either by the person
descending or by an operator.
6. PROPER USE OF A DEUS 7300 SERIES DEVICE
If descent is being controlled manually and the
person controlling the descent lets go of the free
end of the rope, automatic control is engaged
instantly and descent will proceed at a controlled
rate. It is possible to switch from automatic to
manual control during descent. To do this, either
the person descending or an operator must grab
and pull on the free end of the rope running
through the DEUS 7300 Series device. Stopping
descent cannot be done in automatic mode.
However, this is easily accomplished in manual
mode by pulling on the free end of the rope.
Descent Speed. Each DEUS 7300 Series device
features a preset, automatic descent speed.
Devices can also be factory tuned to provide
different descent speeds to match situational
requirements. The default maximum descent
speed is between 0.5 and 2 meters per second.
However, maximum speed can be factory tuned
to a maximum descent speed of less than 2
meters per second. Such adjustments may only
be made by a SKYLOTEC-Certified Maintenance
Technician. Maximum descent speed is based
on a load of 310 lbs (140 kg). Descent speed
will vary as a function of load, which means that
smaller, lighter-weight people will go slower. The
minimum normal operating load is 65 lbs (30 kg).
However, if low loads are routinely expected, the
7300 Series device can be factory tuned for lower
loads.
Maximum Descent Height. Each DEUS 7300
Series device is rated for use over a maximum
vertical distance of 590 ft (180 m).
Reversible. Each DEUS 7300 Series device
is reversible without re-rigging or adjusting the
device in any way. Rope can be pulled through
the device in either direction and a person can
descend connected to either end of the rope.
Transition. The act of changing how a person is
supported (such as from a platform to suspension
in a harness) is called "transition." The primary
goals of transition are avoiding shock load and
maintaining control and balance – all to avoid
injury to the person and damage to the equipment.
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