Otto Bock 8E38 8 Series Instructions For Use Manual page 37

FlexiGrip takes effect when the load on the hand exceeds 130 N (gripping force of the hand and
externally applied force). When there is no longer a load, the SensorHand Speed grips with the
previous gripping force again.
Control with one electrode
Opening: At maximum speed with fast, sustained muscle signal via the electrode.
Closing: At maximum speed with quick relaxation of the muscle.
Stopping: Relaxing the muscles very slowly via the electrode causes the hand to stop in the
open position.
Example 1: After opening, relax the muscle at very slow speed. The opening position remains
unchanged.
Example 2: After opening, relax the muscle at the fastest speed. The hand closes automatically
at the fastest speed and starts grasping the object with a gripping force of 10 N.
When the sensors recognise that the position of the object is changing, a readjust­
ment is automatically performed up to the maximum gripping force (130 N) as
needed.
Open
Fast, sustained muscle signal via the elec­
trode.
Speed:
Constant, 300 mm/s
Initial gripping force
10 N
Control with one linear control element
Opening: At maximum speed with a quick pull on the linear control element.
Closing: At maximum speed by quickly relaxing the pull on the linear control element.
Stopping: Relaxing the pull on the linear control element very slowly causes the hand to stop
in the open position.
Example 1: After opening, relax the pull on the linear control element very slowly. The opening
position remains unchanged.
Example 2: After opening, relax the pull on the linear control element at the fastest speed. The
hand closes automatically at the fastest speed and starts grasping the object with
a gripping force of 10 N. When the sensors recognise that the position of the
object is changing, a readjustment is automatically performed up to the maximum
gripping force (130 N) as needed.
Open
Pull on the linear control element at high
speed.
Speed:
Constant, 300 mm/s
Close
Relaxing the muscles very slowly via the elec­
trode:
Hand stops in the open position.
Relaxing the muscles quickly via the electrode:
Hand closes
Speed:
Constant, 300 mm/s
Automatic gripping force
readjustment
Up to max. 130 N
Close
Relaxing the pull on the linear control element
very slowly:
Hand stops in the open position
Relaxing the pull on the linear control element
quickly:
FlexiGrip function
Takes effect starting at the
maximum gripping force
37