Checkline TI-UMX2 User Manual

Page 26

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3. When the material type is displayed, immediately press

and release the button to configure the TI-UMX2 to the
selected material type. For this example, IRON has been
selected.

4. Press and hold the button to escape out of the menu options at any time.

5. The TI-UMX2 is now calibrated and ready to begin taking readings.

Using a Known Material Velocity

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 CAL
menu is highlighted and displaying the submenu items.

2. Use the UP and DOWN arrow keys to scroll through the sub menu items until

VELOCITY is highlighted.

3. Press the ENTER key to display the Digits Edit Box.

4. Press the UP and DOWN arrow keys to scroll the highlighted value.

5.฀฀ Press฀the฀LEFT฀and฀RIGHT฀arrow฀keys฀to฀scroll฀the฀digit฀locations.

6. Repeat steps 4 & 5 until the velocity number is correctly displayed.

7. Press the OK key to set the velocity and return to the menu screen, or ESC to cancel

entering the velocity.

8. Finally, press the MEAS key to return to the measurement screen and begin taking

readings.

To calibrate the TI-UMX2 for a specific type of coating using the DataComm utility
software, refer to section 12.0 for a complete explanation on how to program a known
coating velocity into the TI-UMX2.

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Disadvantages:

Single element transducers are not capable of detecting pits and flaws with a digital
thickness gauge, and are typically not used for corrosion inspections on blind
surfaces. Since only one crystal is used to both send and receive sound waves, small
defects that reflect very little sound energy back to the transducer are ignored, based
on the noise created by the same crystal sending the sound wave. Therefore, these
transducers should only be used when general material thickness is required, and
‘never’฀used฀for฀corrosion฀inspections.฀If฀there’s฀any฀interest฀in฀locating฀blind฀surface฀
pitting฀or฀internal฀material฀laws,฀a฀‘dual฀element’฀transducer฀should฀always฀be฀used.