might be the size of the device, but when you consider
the fact that it is, at the same time, a descent and ascent
device that does all the physical work for the operator,
such disadvantages become rather a minor issue.
Operation of Atlas Devices
APA-5 ascender is quite
simple, but – as in the case
of all elements of climbing
equipment – the user must
spend some time and ef-
fort to get to know all the
details. The device is con-
trolled with a two-stage
trigger that looks like the
one you find in a driller or
a joystick. The trigger is
operated with one hand,
the second hand remains
always free. The LCD dis-
play placed on a durable
aluminum enclosure that
is resistant to damage
and sea water was cov-
ered with a panel that al-
lows operations with night
vision devices. Above the trigger, there are two switches
to adjust the working speed of the ascender (with icons
of turtle and a hare), as well as the working direction (up/
down). An important element is the non-electric safety
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