Checkline TI-CMXDL - Manual (Page 34)

The following is a list of the viewable features on the display:
A. Repeatability/Stability Indicator – This indicator should be commonly used in con-
junction with the digital thickness values displayed. When all the vertical bars are fully
illuminated and the last digit on the digital thickness value is stable, the TI-CMXDL is reli-
ably measuring the same value 3 to 200 times per second, depending on which measure-
ment mode and features are enabled.
B. Battery Icon – Indicates the amount of battery life the TI-CMXDL has remaining.
C. Velocity – The material velocity value the TI-CMXDL is currently using or calibrated
for. Displayed in either English or Metric units, depending on the what units the gauge
is set for.
D. Feature Status Bar – Indicates the features currently enabled and in use in the
following order:
• Measurement Mode (P-E, PECT, PETP, E-E, COAT)
• Differential Mode (ON/OFF)
• High Speed Scan Mode (ON/OFF)
• Alarm Mode (ON/OFF/AUDIBLE)
• Gain Setting (VLOW, LOW, MED, HI, VHI)
E. Digital Material Thickness Value – Smaller font size when the B-Scan display
view is enabled.
F. Scan Bar – Another view of material thickness in a deflection style horizontal bar.
This is another visual tool that would enable the user the ability to see thickness
changes during high speed scans from flaws and pits.
G. Units – The current measurement units being used (English, Metric).
H. Coating Thickness Value – Displays the actual thickness of any coating adhered to a
metallic material surface (PECT Mode), or a coating adhered to a non-metallic surface
(CT Mode).
I. Minimum Material Thickness – Part of the Alarm feature. Displays the minimum
thickness value found during a scan.
J. Maximum Material Thickness – Part of the Alarm feature. Displays the maximum
thickness value found during a scan.
K. B-Scan Display – Cross section view of the material. Provides the user with graphical
view of the opposite/blind surface (i.e. inside pipe wall surface), to give the user some
idea of the condition, or integrity of the material being tested.
7.2 Activating B-Scan View
To use the B-Scan feature it must be enabled in the display menu.
The following steps will help you do just that:
1. Press the MENU key once to activate the menu items tab.
Press the MENU key multiple times to tab right, and the
ESC key multiple times to tab left, until the DISP menu is
highlighted and displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll through the
sub menu items until VIEW is highlighted.
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3. Press the LEFT and RIGHT arrow keys to toggle DIGITS or B-SCAN. When the
correct view is being displayed continue on to setting the B-START or B-DEPTH
values, or press the MEAS key to return to the measurement screen and begin taking
readings.
7.3 Adjusting the B-Scan Start (B-START) & Depth (B-DEPTH)
In order to use the B-Scan and Scan Bar features of the TI-CMXDL effectively, the start
depth and overall depth must be setup correctly. This can be adjusted using the B-STAR
and the B-DEPTH features of the TI-CMXDL. The B-START refers to the starting depth
thickness value displayed. Example: If you want your B-Scan or Scan Bar to start at a z
thickness value, then B-START must be set to 0.000”. If you want the B-Scan and Scan
Bar to start displaying at .125”, then B-START must be set to .125”. B-DEPTH represen
overall viewable thickness range being tested. Example: If your measuring tank walls w
a total thickness of .300”, and your B-START has been set to 0.000”, you might conside
setting your B-DEPTH value to something like 0.400” to cover the entire thickness rang
being tested. You might also consider B-DEPTH as a zoom feature for both the B-Scan
Scan Bar. Why? Because the larger the overall thickness range view (B-DEPTH), the
smaller the noticeable shifts in the Scan Bar and B-Scan presentation. Therefore, it’s bes
set the B-START and B-DEPTH to reasonable values that zoom in and optimize your
graphic presentation.
Starting depth (B-START)
The starting B-START, or starting depth, is the starting thickness value. Often times this
value will simply be set to zero in order to start measuring at 0.000”. The only time this
value will be set to something other than zero, is if the user needs to zoom in even close
When will this be the case? If the user is testing a material that’s 1 inch in thickness and
knows that the potential corrosion is only on the back surface of the material and not po
bly deeper than .200”. In this case, the user may wish to set the B-ST at .700” to zoom i
closer to the actual area being tested. In turn, the B-DEP might be set at 1.100” in order
cover the entire range respectively. This will offer the user better resolution for both the
Scan and Scan Bar graphical presentations.
NOTE: Once the range is set, it will remain the same for all the views respectively.
The procedures to adjust the starting depth (B-START) are outlined below:
Adjusting the Starting Depth (B-START)
1. Press the MENU key once to activate the menu items tab. Press
the MENU key multiple times to tab right, and the ESC key
multiple times to tab left, until the DISP menu is highlighted
and displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll through the
sub menu items until B-START is highlighted.
3. Press the LEFT and RIGHT arrow keys to scroll the value.
When the correct B-Start value is being displayed, proceed
to step 8.
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