Dakota Digital CMX operation manual Zero Coating, Performing a Coating Zero

Dakota Ultrasonics

9.3 Zero Coating

In order to account for very slight electronic differences in transducers of the same type, frequenc y, and diameter, the CMXDL+ has been equipped with a “zero coating” feature. This enables the CMXDL+ to obtain very accurate readings on coatings, eliminating potential errors incurred from slight differences in the manufacturing processes. The procedure is outlined below:

Performing a Coating Zero

1)Press the MULTI MODE key once to activate the measurement mode options.

2)Use the UP and DOWN arrow keys to scroll through the sub menu items until Coating Only (CT) mode is highlighted.

3)Press the ENTER key to select the measurement mode and return to the measurement screen.

4)Apply a drop of couplant on the transducer and place the transducer in steady contact with the probe zero disk (battery cover) and obtain a steady reading.

Note: The coating measurement displayed will potentially be a value greater or

less than 0.

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