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The procedure to enable the velocity feature is outlined below:

1.  Press the

key to access the menu items/features.

2.  Use the

and

keys to scroll through the items/features until the 

    

 

VX feature isbeing displayed.

3.  Press the

key to edit the setting. The edit icon will be illuminated and    

  

flashing.

4.  Use the

and

keys to select the on/off option.

Note

: Pressing the

key prior to pressing the

key will abort to the 

measurement screen without saving changes.

5.  When the desired VX setting is displayed, press the

key to set the status  

 

and return to the measurement screen.

7.10  Probe Diameter

The PROB feature was added to improve linearity when using a specific probe diameter. 
The default standard setting is (.250”), and works reasonably well using a general 
correction curve for all of our dual element transducers in our range. However, selecting 
the exact diameter of the transducer being used will offer additional linearity (accuracy). 
The three options found in our range of transducers are (.187, .250, .500) inches. All of 
our transducer diameters and frequencies are marked on top of the transducer housing.

The procedure to select the probe/transducer diameter is outlined below: 

1.  Press the

key to access the menu items/features.

2)  Use the 

and

keys to scroll through the items/features until the 
 PROB feature is being displayed.

3.  Press the

key to edit the diameter setting. The edit icon will be illuminated  

  

and flashing.

4.  Use the

and

keys to select the diameter option.

Note

: Pressing the

key prior to pressing the

key will abort to the 

measurement screen without saving changes

5.  When the desired PROB setting is displayed, press the

key to set the    

 

diameter and return to the measurement screen.

Summary of Contents for Checkline TI-25DLXT

Page 1: ...1 Web https www abqindustrial net E mail info abqindustrial net Distributed by ABQ Industrial LP USA Tel 1 281 516 9292 888 275 5772 eFax 1 866 234 0451 Web https www abqindustrial net E mail info abq...

Page 2: ...kness relationship 3 2 Suitability of materials 3 3 Range of measurement and accuracy 3 4 Couplant 3 5 Temperature 3 6 Measurement modes 4 0 Selecting the measurement mode 13 4 1 Which Mode and Transd...

Page 3: ...on 8 2 Opening a data file 8 3 Storing a measurement 8 4 Clearing a file 8 5 Clearing all files 9 0 Data Transfer a Power Options 36 9 1 Connectivity 9 2 Locating stored files 9 3 Copying opening file...

Page 4: ...y one side of the material being measured 1 1 Disclaimer Inherent in ultrasonic thickness measurement is the possibility that the instrument will use the second rather than the first echo from the bac...

Page 5: ...he PRB 0 key is used to zero the TI 25DLX in much the same way that a mechanical micrometer is zeroed If the gauge is not zeroed correctly all of the measurements that the gauge makes may be in error...

Page 6: ...menu options 2 7 MATL Key The MATL Key is used to select a common basic material type from a short list of 9 materials and 2 programmable custom materials for calibration Refer to section 4 1 for an...

Page 7: ...result some of the icons and segments that are illuminated during boot up may not be applicable to your specific model and will never be illuminated during operation The icons and segments that will...

Page 8: ...it will be set to CUST indicating custom material type L Features The icons illuminated in this row across the bottom of the LCD display which features are currently enabled For a complete list of the...

Page 9: ...he surface of the material being measured This is accomplished with the use of a coupling fluid commonly called couplant This fluid serves to couple or transfer the ultrasonic sound waves from the tra...

Page 10: ...er Refer to Diagram The Battery cover is the large round disk shown in the diagram NOTE This same disk is also used as a probe zero reference disk Simply remove the cover when replacing the batteries...

Page 11: ...easurement is practical in a wide variety of materials including metals plastics and glass Materials that are difficult include some cast materials concrete wood fiberglass and some rubber 3 3 Range o...

Page 12: ...to changes in the temperature of the transducer However multi echo techniques offer temperature compensation help to minimize these errors 3 6 Measurement Modes This section will cover the different m...

Page 13: ...cho mode for through coating measurements Dual element delay line transducers are have a usable range of 0 025 and up depending on the material frequency and diameter A limitation of dual element dela...

Page 14: ...required while still requiring the ability to detect flaws and pits A special coating style transducer is required for use in this mode There are a variety of coating transducers in various frequencie...

Page 15: ...surface noise issues or mirroring effect Higher frequency transducers 7 10MHz offer improved resolution to avoid erroneous measurements Restricted access Measuring materials with extreme curvatures o...

Page 16: ...ial on the chart in the appendix of this manual and refer to the section below on Calibration to a Known Velocity To determine the velocity of a single sample refer to the Material Calibration section...

Page 17: ...it to obtain a measurement 2 Be sure all six repeatability stability bars in the top left corner of the display are fully illuminated and stable and last digit of the measurement is toggling only 001...

Page 18: ...option is most suited for linearity over large ranges When using the one point option the calibration should be perform on the thickest side of the measurement range for the best linearity for that ra...

Page 19: ...sed a probe zero is not required For example if the measurement range was 080 2 03mm to 250 6 35mm two known samples or locations on the test material would be needed for the minimum and maximum bound...

Page 20: ...rence standard as the probe zero standard if desired 6 Repeat steps 2 4 on the second test point location 7 Press the key to display the calculated velocity edit screen NOTE The calculated velocity ca...

Page 21: ...ressing the key prior to pressing the key will abort to the measurement screen without saving any changes 4 If USR1 or USR2 were selected the velocity edit screen will be displayed and edit icon illum...

Page 22: ...a group of parts The test will always be performed at the same location for all parts in the group The velocity will be determined and either accepted or rejected depending on the specified tolerances...

Page 23: ...and keys to scroll to the known thickness value NOTE The longer the keys are pressed and held the faster the value will increment decrement NOTE Pressing the key prior to pressing the key will abort t...

Page 24: ...it icon will be illuminated and flashing 3 Use the and keys to scroll to the known velocity value NOTE Pressing the key prior to pressing the key will abort to the measurement screen without saving ch...

Page 25: ...o I know when to lower the gain If the reading becomes sporadic and won t settle down or resolve on a thickness value because the material is either very noisy or granular Setting the gain to a lower...

Page 26: ...ng the key prior to pressing the key will abort to the measurement screen without saving changes 5 When the desired SCAN setting is displayed press the key to set the status and return to the measurem...

Page 27: ...I limit is displayed press the key to set the value and return to the measurement screen 7 4 Differential The Differential Mode of the TI 25DLX provides the user with the ability to set a nominal valu...

Page 28: ...d and flashing 4 Use the and keys to toggle English or Metric units Note Pressing the key prior to pressing the key will abort to the measurement screen without saving changes 5 When the desired UNIT...

Page 29: ...LX also has a feature to use the internal beeper most commonly used with the alarm feature for the key strokes on the keypad When enabled pressing any of the keys on the keypad will sound the beeper T...

Page 30: ...abort to the measurement screen without saving changes 5 When the desired ZERO setting is displayed press the key to set the status and return to the measurement screen 7 9 Velocity VX When the veloc...

Page 31: ...general correction curve for all of our dual element transducers in our range However selecting the exact diameter of the transducer being used will offer additional linearity accuracy The three optio...

Page 32: ...ed below 1 With the TI 25DLX powered off press and hold down the key while powering the TI 25DLX on The lock icon will be illuminated on the display 2 To unlock the TI 25DLX repeat step one but hold d...

Page 33: ...ort template Only files with at least one measurement stored in the file will appear in the external drive folder when transfering 8 2 Opening a Data File 1 Press the key to access the data files and...

Page 34: ...a measurement has already been stored at that location Pressing the key will clear the previously stored measurement from the location Pressing the key will now store the new measurement 8 4 Clearing...

Page 35: ...f Yes was selected a BUSY message will briefly be displayed confirming the file is being cleared 8 5 Clear All Files If a number of files in the TI 25DLX contain old data or data that has been previou...

Page 36: ...y will abort to the measurement screen without clearing the file 5 Press the key to confirm Yes No selection and return to the measurement screen NOTE If Yes was selected a BUSY message will briefly b...

Page 37: ...of devices Open the external drive to view the files 9 3 Copying Opening Files Now that the files have been located and are accessible they can either be opened from the TI 25DLX DL s memory or copie...

Page 38: ...0850 2159 Magnesium 0 2300 5842 Mercury 0 0570 1448 Molybdenum 0 2460 6248 Monel 0 2110 5359 Nickel 0 2220 5639 Nylon 0 1060 approx 2692 Platinum 0 1560 3962 Plexiglas 0 1060 2692 Polystyrene 0 0920 2...

Page 39: ...und velocity of the material being measured starts to have a noticeable effect upon ultrasonic measurement At such elevated temperatures it is recommended that the user perform calibration on a sample...

Page 40: ...easuring laminates is that many included air gaps or pockets which will cause an early reflection of the ultrasound beam This effect will be noticed as a sudden decrease in thickness in an otherwise r...

Page 41: ...EFORE UPON OR AFTER REPLACEMENT OR REPAIR AND WHETHER OR NOT SUCH DAMAGE IS CAUSED BY MANUFACTURER S OR SUPPLIER S NEGLIGENCE WITHIN ONE YEAR FROM INVOICE DATE Some State jurisdictions or States do no...

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