Checkline DFX-7 - Manual (Page 10)

Dakota Ultrasonics
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3) Press the UP and DOWN arrow keys to toggle the coating option on/off.
4) Wipe all couplant from the transducer face and advance to the Probe Zero
& Calibration section outlined below.
2.3 Selecting the Transducer Type
If the DFX-7 does not identify a specific transducer type on initial power up, the user
will be required to select a type from a predefined list of types by diameter and
frequency. By selecting a transducer type from a predefined list, the DFX-7 can
recall specific properties about the transducer. Note: Once the transducer has been
selected, the DFX-7 will store and recall this transducer type every time the DFX-7 is
powered on/off. The type will only change if the user physically selects another
transducer type from the list, or selects a previously saved setup. However, the DFX-
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will continue to take you through these steps each time the gauge is powered up.
You’ll notice that the probe type previously selected will be highlighted every time the
probe type screen is displayed. Use the following steps to select your transducer
type: