12
The Gain setting determines the reading range: 0-20
V at
x1
, 0-
200
V at
x10
and 0-2000
V at
x100
. For each gain setting, the
possible threshold values are: .5-10
V (x1), 5-100
V (x10), and
50-1000
V (x100) respectively.
Example of Threshold Setting:
If you want to do a feedback session for the purpose of encouraging
an increased level of activity in a specific muscle, initially set the
gain to
x1
. If, with a normal contraction, the reading is near the left
end of the green scale, then you might want to set the threshold
control to a lower number (turn the knob clockwise); this will move
the signal toward the right, making it easier to reach the threshold.
Conversely, if the reading is at the top of the scale (all the way to
the right), you might want to increase the threshold (turn the knob
counterclockwise) to move the signal to the left. If this is not
sufficient, you can increase the range by switching the scale reading
switch to the
x10
or
x100
position.
Let’s say that the
THR
dial is set to
5
and the gain switch to
x10
.
The first yellow LED would represent 50
V (5
x
10), the left most
green LED would be 25
V and the right most yellow LED, 100
V.
MyoTrac (SA4000P & SA4001P)
25 V
50 V
100 V
