Dakota Ultrasonics MINI--MAX - Manual (Page 123)

MINI-MAX Ultrasonic Bolt Tension Monitor
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4) Apply approximately 1/3 of the maximum load, which is to be placed on
the bolt under actual working conditions.
5) Measure and record the Ultrasonic Length at Load 1 by pressing the
ENTER key. The Digits Edit Box will be displayed.
Note: Load 1 should be stored in column B.
6) Enter the Known Load value by pressing the UP and DOWN arrow
keys to scroll the highlighted value.
7) Press the LEFT and RIGHT arrow keys to scroll the digit locations.
8) Repeat steps 6 & 7 until the Known Load value is correctly displayed.
9) Press the OK key to store the Known Load and return to the
measurement screen, or ESC to cancel entering the Known Load.
10) Increase the applied load to approximately 2/3 of the maximum load,
which is to be placed on the bolt under actual working conditions.
11) Measure and record the Ultrasonic Length at Load 2 by pressing the
ENTER key. The Digits Edit Box will be displayed.
Note: Load 2 should be stored in column C.
12) Enter the Known Load value by pressing the UP and DOWN arrow
keys to scroll the highlighted value.
13) Press the LEFT and RIGHT arrow keys to scroll the digit locations.
14) Repeat steps 8 & 9 until the Known Load value is correctly displayed.
15) Press the OK key to store the Known Load and return to the
measurement screen, or ESC to cancel entering the Known Load.
16) Increase the applied load to approximately the maximum load, which is
to be placed on the bolt under actual working conditions.