Elcometer CG100ABDL Operating Instructions Manual page 9

5.2 RF A-SCAN MEASUREMENT SCREEN
Hot Menu Disabled
Hot Menu Enabled
((CG100ABDL gauges only)
The RF view shows the full sound wave as
received by the gauge. The vertical axis
indicates the amplitude of the received wave
and the horizontal position indicates the time it is
received, which is converted into thickness units
using the material velocity.
The point on the scan that is being used to
calculate the digital thickness reading is
displayed as the vertical dashed line (see
section 9 on gates). The RF screen is used for
gauge setup prior to inspection.
5.3 RECT A-SCAN MEASUREMENT SCREEN
(CG100ABDL gauges only)
The rectified view shows only half of the
waveform, either the positive or negative half
depending on the POLARITY selected.
The RECT display is the preferred view for flaw
and pit inspections
5.4 B-SCAN MEASUREMENT SCREEN
Hot Menu Disabled
Hot Menu Enabled
The time-based B-Scan display provides a cross
(CG100ABDL only)
sectional view of the material being tested. In
this example, the top, or accessible side of the
material is represented as 0.00mm, and the
bottom, or blind surface at 25.4mm.
This mode is used when you need to inspect the
profile of the blind surface. It can also be a useful
view when scanning for pits and flaws.
The B-Scan display is equipped with a scan bar
representing the overall thickness. The scan bar
gives the user a visual indication when a flaw or
defect passed over during the scan process.
If you are scanning a pipe, for instance, and
pass over a pit during the process, the scan bar
will quickly deflect and alert you to go back and
search for the defect.
5.5 DIGITS MEASUREMENT SCREEN
The digits display shows the thickness as a
value using a large font size. This view is used
typically when the gauge is being used as a
basic thickness gauge. The digits display
includes the same scan bar as the B-Scan
display.
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