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Dakota Ultrasonics
26
Dual-Multi Mode
Often times users and inspectors in the field are faced with coated
materials such as pipes and tanks. Typically inspectors will need to
remove the paint or coating prior to measuring, or allow for some fixed
amount of error introduced by the paint or coating thickness and velocity.
An A-Scan scope with a special echo-echo mode is generally used in order
to accurately perform measurements through paints and coatings.
However, In order to inspect for blind wall pitting and internal flaws, both
echo-echo (thru-paint / coatings), and pulse-echo (locate flaws & pits)
modes are needed. Special high damped dual element transducers are
also a must when performing inspections using both modes without an a-
scan scope for verification. A highly damped transducer rings for a much
shorter time, allowing the MMX-6DL to measure thinner material
thicknesses in echo-echo mode. This same transducer is equally effective
when used in pulse-echo mode, eliminating the need to use different
transducers for each mode. The new MMX-6DL gives you all these
features in a simple to use, one button toggle, digital thickness gauge. The
following steps outline the procedure for setting up this feature:
Dual-Multi Mode
1) Press ON/OFF key to power up the MMX-6 DL.
2) Press MODE key to activate features and settings.
3) Press the UP or DOWN arrow keys to scroll to GAtE.
4) Press the SEND key to toggle between modes ( E-E, P-E).
5) Press the MODE key once again to return to measurement mode.