Setting - DGC DC-3000 Series Instruction Manual

DC-3000 SERIES ULTRASONIC THICKNESS GAUGE
Average mode: (DC-3020)
Provides the average value of 2 to 9 measured points and display it
suitable for testing the flat surface.
Limitation setting: (DC-3020)
Set the upper and lower limit, when the measured thickness exceeds the
preset limit, it will display and give alarm. This measurement mode is
more widely used than differential mode.
Scan:
It is available for measuring the thickness of test piece with high
temperature surface. The gauge will alarm for each fast measurement.
And will display the all measured thickness upon the complete
measurement finished.
8.4.1.2 E-E Mode:
When the E-E mode is selected, only probe D5301 is available. This
function allows you to make measurement between two consecutive back
wall echoes. Therefore, a good usage of the E-E option is for measuring
through coatings (Max. 1mm) to measure only the true metal thickness.
【8.5】Setting
8.5.1 Velocity rate
Sound velocity played an important role in measurement. Different
material is of different sound velocity. When the sound velocity is
incorrect, it will cause wrong measured results. There are two ways to
select the material's sound velocity, which are Velocity selection and
Velocity measurement.
8.5.1.1 Materials
The gauge gives the sound velocity of 9 different materials which can be
select by users. The 9 materials are: aluminum, titanium, steel, stainless
steel, glass, copper, cast iron, brass and polystyrene.
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