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3) Press the ENTER key to display the list of transducer types.
4) Press the UP and DOWN arrow keys to scroll through the transducer list
until the appropriate type is highlighted.
5) Press the ENTER key to display the confirmation screen.
6) Press the OK key to select the transducer and return to the menu screen, or
ESC to cancel the selecting the transducer.
2.2 Probe Zero & Calibration
The next step is to calibrate the MMX-7 to the material and transducer being used. If
the materials sound velocity is unknown, the MMX-7 can be calibrated to a known
thickness sample. This demo will briefly explain both of these techniques.
In either case, the transducer MUST be zeroed on the probe zero disk (battery cover)
located on the top of the unit as follows:
1) Apply a drop of couplant on the transducer and place the transducer in
steady contact with the probe zero disk, and obtain a steady reading.
2) Assuming the probe menu is still displayed from the previous type selection,
use the UP and DOWN arrow keys to scroll through the sub menu items
until ZERO TRANSDUCER is highlighted.
3) Press the ENTER key to display the confirmation screen.
MMX-7 Data Logging Ultrasonic Thickness Gauge
Performing a Probe Zero
3
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