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T

ABLE OF

C

ONTENTS

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1.0 

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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2

1.1 Accessories

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2.0 

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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3

2.1 Gauge
2.2  Complete Kit

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3.0 

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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4

3.1 Keypad
3.2 Display
3.3 Transducer

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4.0 

Condition & Preparation Of Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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7

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5.0 

Zeroing The Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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8

0

6.0

Selecting Material Type (Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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9

0

7.0 

Downloading Custom Calibrations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10

0

8.0 

Transducer Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

11

0

9.0 

Making Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

13

10.0 

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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11.0

Appendix A: Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

15

12.0

Appendix B: Sound Velocities Of Common Materials . . . . . . . . . . . . . . . . 

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13.0

Appendix C: User-Selected Material Types. . . . . . . . . . . . . . . . . . . . . . . . . 

18

14.0

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

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IMPORTANT NOTE:

Inherent in ultrasonic thickness measurement is the possibility that the instrument will
use the second rather than the first echo from the back surface of the material being
measured.  This may result in a thickness reading that is TWICE what it should be.
Responsibility for proper use of the instrument and recognition of this phenomenon rests
solely with the user of the instrument.

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N

OTES

Summary of Contents for TI-25S

Page 1: ...ifications 14 11 0 Appendix A Application Notes 15 12 0 Appendix B Sound Velocities Of Common Materials 17 13 0 Appendix C User Selected Material Types 18 14 0 Warranty 19 IMPORTANT NOTE Inherent in ultrasonic thickness measurement is the possibility that the instrument will use the second rather than the first echo from the back surface of the material being measured This may result in a thicknes...

Page 2: ...r misapplication has taken place as determined by ELECTROMATIC All returns for warranty or non warranty repairs and or replacement must be authorized by ELECTROMATIC in advance with all repacking and shipping expenses to the address below to be borne by the purchaser THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTY OF MERCHANT...

Page 3: ...nual all in a foam fitted carrying case NOTE Data cable must be ordered seprately to program User 1 and 2 customer velocities 18 13 0 APPENDIX C USER SELECTED MATERIAL TYPES Each time the MATL key is pressed the material type the calibration setting of the accoustic velocity changes from one type to the other The abbreviations descriptions and sequence is shown below NOTE If the Custom 1 and 2 are...

Page 4: ...eviation and velocity on the back of the TI 25S The PRB 0 key is used to zero the TI 25S 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 by some fixed value Refer to page 8 for an explanation of this important procedure The IN MM key is used to switch back and forth between English and Met...

Page 5: ... the left most bar and the underline will be on When the gauge is making a measurement six or seven of the bars should be on If fewer than five bars are on the TI 25S is having difficulty achieving a stable measurement and the thickness value displayed will most likely be erroneous IN Symbol When the IN symbol is on the TI 25S is displaying a thickness value in inches The maximum thickness that ca...

Page 6: ...e wearface is perpendicular at right angle to the long axis of the pipe For smaller pipe diameters two measurements should be performed one with the wearface gap perpendicular another with the gap parallel to the long axis of the pipe The smaller of the two displayed values should then be taken as the thickness at that point Measuring hot surfaces The velocity of sound through a substance is depen...

Page 7: ... excessive wear of the transducer particularly in situations where the transducer is scrubbed along the surface Transducers should be inspected on a regular basis for signs of uneven wear of the wearface If the wearface is worn on one side more than another the sound beam penetrating the test material may no longer be perpendicular to the material surface In this case it will be difficult to exact...

Page 8: ...order for the transducer to do its job there must be no air gaps between the wear face and the 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 transmit the ultrasonic sound waves from the transducer into the material and back again Before attempting to make a measurement a small amount of couplant ...

Page 9: ...6 0010 12 Temperature of the Material When it is necessary to measure on surfaces that are exceedingly hot high temperature transducers must be used These transducers are built using special materials and techniques that allow them to withstand high temperatures without damage Additionally care must be taken when performing a Probe Zero or Calibration to Known Thickness with a high temperature tra...

Page 10: ...e of different transducers Choosing the correct transducer for a job is critical to being able to easily perform accurate and reliable measurements The following paragraphs highlight the important properties of transducers which should be considered when selecting a transducer for a specific job Generally speaking the best transducer for a job is one that sends sufficient ultra sonic energy into t...

Page 11: ...C E Q U I P M E N T C O I N C 600 Oakland Ave Cedarhurst NY 11516 U S A TEL 516 295 4300 FAX 516 295 4399 CHECK LINE INSTRUMENTS TI 25S ULTRASONIC THICKNESS GAUGE Operating Instructions CHECK LINE BY ELECTROMATIC ...

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