Dakota Ultrasonics DFX-7 plus MANUAL2 - Manual (Page 11)

DFX-7
Ultrasonic Flaw Detector
7
Selecting the Transducer Type
1) Press the OK or ESC keys to display the factory list of transducer types (by
diameter and frequency).
2) Press the UP and DOWN arrow keys to scroll through the transducer list
until the appropriate type is highlighted.