Checkline TI-CMXDLP - Manual (Page 13)

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Known Coating Thickness
When the exact velocity of a coating is unknown, the user has the option of performing
a one point calibration on a sample of the coating with a known thickness to determine
the sound velocity. It would be very handy to carry a set of mechanical calipers to use in
conjunction with the TI-CMXDLP for calibration in the ield:
1. Physically measure a location on a coating sample using a set of calipers or a digital
micrometer.
IMPORTANT NOTE: In PECT (pulse-echo coating) mode, the coating sample must be
coupled to metal in order to calibrate successfully. Simply place a drop of couplant on
a piece of metal, lay the coating sample over the couplant on the metal and proceed to
step 2.
2. Apply a drop of couplant on the transducer and place the
transducer in steady contact with the coating (on metal)
sample or actual test material. Be sure that the reading is
stable and the repeatability indicator, in the top left corner
of the display, is fully lit and stable. 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 CAL menu is highlighted and
displaying the submenu items.
3. Use the UP and DOWN arrow keys to scroll through the
sub menu items until COATING 1PT is highlighted.
4. Press the ENTER key to display the Digits Edit Box.
5. Press the UP and DOWN arrow keys to scroll the
highlighted value.
6. Press the LEFT and RIGHT arrow keys to scroll the digit
locations.
7. Repeat steps 5 & 6 until the known thickness value is
correctly displayed.
8. Press the OK key to calculate the coating velocity and
return to the menu screen, or ESC to cancel the one point
calibration.
9. Finally, press the MEAS key to return to the measurement
screen and begin taking readings.
NOTE: CHECK YOUR CALIBRATION! Place the transducer back on the calibration
point. The coating thickness reading should now match the known coating thickness
sample. If the thickness is not correct, repeat the steps above.
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4. The user may opt to clear a speciic reading
and save a new one at anytime. Press the CLR
key in the appropriate cell location to clear the
reading,take a new measurement, and press the
ENTER key to save the new reading.
5. Abort the Grid/Seq Log View Box by pressing
the MEAS key at any time.
11.5 Deleting Grids (Files)
Deleting One File
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 DATA menu is highlighted and
displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll
through the sub menu items until DELETE ONE
FILE is highlighted.
3. Press the ENTER key to display the File List
Box.
4. Use the UP and DOWN arrow keys to scroll
through the stored Files until the target File to
delete is highlighted.
5. Press the OK key to delete the File.
6. Press the MEAS key to return to the
measurement screen.
Deleting All Data
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 DATA menu is highlighted and
displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll
through the sub menu items until DELETE ALL
DATA is highlighted.
3. Press the ENTER key to activate the
conirmation screen.