Checkline TI-MINIMAX - Manual (Page 58)

Dakota Ultrasonics
52
20) Press the OK key to set the Approximate Length and return to the
menu screen, or ESC to cancel entering the Approximate Length.
21) Use the UP and DOWN arrow keys to scroll through the sub menu
items until AUTO SET is highlighted.
Note: Both the Approximate Length and Auto Set feature could have also
been set and activated using the Hot Menu Items, and Keypad Auto Set
button as well. However, since you were already in the Tab Menu Items, it
was just as easy as returning to the Hot Menu Items screen.
22) Apply a d rop of couplant to the bolt or transducer, and attach it to one
end of the bolt. Rotate the transducer clockwise and counter clockwise
applying a small amount of pressure to eliminate any excess couplant
between the transducer and bolt surface. Be sure to always place the
transducer in the same location. This will help to eliminate any potential
measurement errors cause by changing the sound path.
23) Press the ENTER key and the Ultrasonic Length of the bolt will be
displayed and should be documented and scribed on the bolt, along with
the Velocity and Temperature Coefficient, for future zero verification.
24) Proceed to the next section to save this length in the Probe Zero
group created in the previous section. DO NOT REMOVE THE
TRANSDUCER FROM THE BOLT.
Now that we’ve gathered all the data for the probe zero bolt, we need to
document it as outlined in the next section.
Storing the Reference Length