Checkline TI-MINIMAX - Manual (Page 144)

Dakota Ultrasonics
138
1) Press the MEAS key once to activate measure menu items. Press the
MEAS key multiple times to move right and the ESC key multiple times
to move left, until the WIDTH cell is highlighted.
2) Press the UP, DOWN, LEFT, and RIGHT arrow keys to scroll the
highlighted value.
3) Alternatively , press the ENTER key to display the Digits Edit Box.
4) Press the UP and DOWN arrow keys to scroll the highlighted value.
5) Press the LEFT and RIGHT arrow keys to scroll the digit locations.
6) Repeat steps 4 & 5 until the WIDTH value is correctly displayed.
7) Press the OK key to return to the measurement screen, or ESC to
cancel entering the WIDTH.
12.9 Automatic echo optimization
The MINI-MAX is equipped with a built in Auto Set feature for echo optimization.
The
Auto Set uses a variety of algorithms, evaluating the positive and negative
and negative cycles, and selects the best phase (polarity) to use for
measurement. It also optimizes the gain, sets the delay and width, and activates
and sets the gate accordingly. Use of this feature will save the user a great deal
of time in the measurement process. In order to use the
Auto Set properly, an
approximate length of the bolt must be entered into the MINI-MAX. The
approximate length tells the MINI-MAX where to start looking for the echo. The
MINI-MAX will search +/- 5% from the value entered. The following procedures
outline the
Auto Set feature.