Checkline TI-CMXDL - Manual (Page 29)

(2.54mm) to 1.0” (25.4mm), the user should calibrate on a known thickness sample clos
to 1.0” (25.4mm).
NOTE: It’s always handy to carry a set of mechanical calipers to use in conjunction wit
the TI-CMXDL for calibration in the field:
One Point Calibration
NOTE: Be sure that the probe zero procedure has been performed prior to performing th
calibration procedure.
1. Physically measure an exact sample of the material or a
location directly on the material to be measured using a set
of calipers or a digital micrometer.
2. Apply a drop of couplant on the transducer and place the
transducer in steady contact with the 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 MATL 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 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 thickness reading should now match the known thickness. If the thickness is
correct, repeat the steps above.
At some point there may become a requirement for improved accuracy over a smaller
measurement range. In this case, a two point calibration would be most suited for the job
For example, if the measurement range was .080” (2.03mm) to .250” (6.35mm), the use
would perform a one point calibration on a known thickness sample close to .250”
(6.35mm), followed by a two point calibration close to .080” (2.03mm). When a two po
calibration is performed, the TI-CMXDL calculates the zero and the velocity.
The following steps outline this procedure:
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Probe Automatically Recognized (PECT only)
1. Press the OK key once to use the identified probe, or ESC to
display a list of optional transducers.
NOTE: If the TI-CMXDL recognizes a specific transducer, the user
should always select OK to use the identified probe. The only time
an alternative probe should be selected from a list is if the user
switched probes following initial power up and recognition.
2. Assuming the TI-CMXDL recognized the probe and the OK key
was pressed, the TI-CMXDL will advance to a Zero Probe menu.
If the transducer was identified as a special transducer capable of
measuring coating thickness, a menu will be displayed allowing
the user the ability to toggle the coating thickness display on/off
as follows:
3. Press the UP and DOWN arrow keys to toggle the coating
option on/off.
Multi Mode Key Pressed (PECT & CT)
1. Press the MULTI MODE key located
on bottom left of the keypad to display
the MEASURE MODE options menu.
2. Press the UP and DOWN arrow keys
to highlight the COATING ON (PECT)
or COATING ONLY (CT) menu option.
3. Press the ENTER key to enable the
coating option, or ESC to cancel
changing the measure mode, and
return to the main measurement screen.
Measure Mode (Tabbed Menus) – (PECT & CT)
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 TUNE menu is highlighted
and displaying the submenu items.
2. Use the UP and DOWN arrow keys
to scroll through the sub menu items
until MEASURE MODE is highlighted.
3. Press the LEFT and RIGHT arrow
keys to scroll the modes.
4. When the correct MODE is being
displayed, press the MEAS key to
return to the measurement screen and
begin taking readings.
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Applied to
Metals Not Applied to
Metals
Applied to
Metals Not Applied to
Metals