DAKOTA ULTRASONICS MMX-7 Operation Manual page 43

Data logging ultrasonic thickness gauge

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sample close to .250" (6.35mm), followed by a two point calibration close to .080"

(2.03mm). When a two point calibration is performed, the MMX-7 calculates the zero

and the velocity. The following steps outline this procedure:

1) Physically measure an exact sample of the material or a location directly on

the material to be measured using a set of calipers or a digital micrometer.

2) Apply a drop of couplant on the transducer and place the transducer in

steady contact with the sample or actual test material. Be sure that the

reading is stable and the repeatability indicator, in the top left corner of the

display, is fully lit and stable. Press the MENU key once to activate the

menu items tab. Press the MENU key multiple times to tab right and the

ESC key multiple times to tab left until the CAL menu is highlighted and

displaying the submenu items.

3) Use the UP and DOWN arrow keys to scroll through the sub menu items

until MATL 2PT is highlighted.

Two Point Calibration

MMX-7 A/B Scan Thickness Gauge

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