Dakota Ultrasonics
146
1) Press the
MENU
key once to activate the menu items tab. Press the
MENU
key multiple times to tab right and the
ESC
key multiple times to tab
left until the
AUTO
menu is highlighted and displaying the submenu items.
Alternatively, press the
LEFT
and
RIGHT
arrow keys multiple times
using the left button wheel.
2) Press the
UP
and
DOWN
arrow keys multiple times using the left
button wheel to scroll through the sub menu items until
GATE
is highlighted.
3) Press the
LEFT
and
RIGHT
arrow keys multiple times using the right
button wheel to scroll the value. When the correct gate is being displayed,
proceed to step 8
.
4)
Alternatively
, press the
ENTER
key to display the
Digits Edit Box
.
5) Press the
UP
and
DOWN
arrow keys multiple times using the left or
right button wheel to scroll the highlighted value.
6) Press the
LEFT
and
RIGHT
arrow keys multiple times using the left or
right button wheel to scroll the digit locations.
7) Repeat steps
5 & 6
until the gain number is correctly displayed.
8) Press the
OK
key to set the
Gate
value and return to the menu screen, or
ESC
to cancel entering the
Gate
value.
9) Finally, press the
MEAS
key to return to the measurement screen and
begin taking readings.
12.6 Thresholds
The
Threshold
is the level (sensitivity) of the signal amplitude required to trigger a
detection. This level can be used in conjunction with the gain. Example: suppose
the user is not detecting on the first cycle of the waveform because the amplitude of
the first cycle is not large enough to break the current threshold. Either the
Threshold
can be decreased (lower sensitivity), or the
Gain
increased to cause a
Summary of Contents for MAX II
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