Measurement mode TopCOAT 7 Special functions of the DMS Go+ TC
DMS Go+ Edition 4 (05/2014) 7-13
– Select the digits that you wish to change using the
left and right arrow keys, and change the value using
the up and down arrow keys.
– Press the function key 2 (function DONE) in order to
close the process of changing the thickness value.
– Couple the probe.
– Keep the probe coupled as long as the message Ac-
quiring, please stay coupled is visible on the dis-
play screen. When the message is no longer visible,
the calibration for the TopCOAT method is finished.
The sound velocity for the measurement mode Top-
COAT is then correctly set.
Sound velocity in the coating
In addition to the sound velocity in the material, the
sound velocity in the coating must also be known for
TopCOAT measurements. The factory-set default value
for this is 2375 m/s. This value should usually produce
satisfying results.
As the sound velocity in the coating has an
effect on the determination of coating thick
-
ness and consequently also on the calcula-
tion of wall thickness, the accuracy of the
displayed thickness reading depends on the
coating velocity stored in the instrument.
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