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ABQ Industrial Checkline TI-25DLXT Instruction Manual

Thru-paint ultrasonic wall thickness gauge
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TI-25DLXT Thru-Paint Ultrasonic Wall
Thickness Gauge - Instruction Manual
Tel: +1 (281) 516-9292 / (888) 275-5772 eFax: +1 (866) 234-0451
Web: https://www.abqindustrial.net E-mail: info@abqindustrial.net
Tel: +1 (281) 516-9292 / (888) 275-5772 eFax: +1 (866) 234-0451
Web: https://www.abqindustrial.net E-mail: info@abqindustrial.net
Distributed by: ABQ Industrial LP USA
Distributed by: ABQ Industrial LP USA

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Summary of Contents for ABQ Industrial Checkline TI-25DLXT

  • Page 1 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@abqindustrial.net TI-25DLXT Thru-Paint Ultrasonic Wall Thickness Gauge - Instruction Manual Distributed by: ABQ Industrial LP USA Tel: +1 (281) 516-9292 / (888) 275-5772 eFax: +1 (866) 234-0451...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction .......................... 1.1 Disclaimer ........................Keypad, Menu, Display & Connectors ................2.1 ON/OFF/ENTER Key0 2.2 PRB 0 Key 2.3 CAL Key 2.4 DATA Key 2.5 CLR Key 2.6 +/- INCREMENT/DECREMENT Keys 2.7 MATL Key…. 2.8 MENU Key… 2.9 The Display 2.10 The Transducer 2.11 Top End Cap...
  • Page 3 7.9 Velocity (VX) 7.10 Probe Diameter 7.11 Lock 7.12 Factory Defaults Data Storage .......................... 32 8.1 Introduction 8.2 Opening a data file 8.3 Storing a measurement 8.4 Clearing a file 8.5 Clearing all files Data Transfer a& Power Options ..................36 9.1 Connectivity 9.2 Locating stored files 9.3 Copying/opening files...

  • Page 4: Introduction

    1.0 INTRODUCTION The Checkline model TI-25DLX is a basic dual element thickness gauge with the ability to locate blind surface pitting and internal defects/flaws in materials. Based on the same operating principles as SONAR, the TI-25DLX is capable of measuring the thickness of various materials with accuracy as high as ±...

  • Page 5: Keypad, Menu, Display & Connectors

    2.0 KEYPAD, MENU, DISPLAY & CONNECTORS The Keypad ON/OFF/ENTER Key The ON/OFF/ENTER key powers the unit ON or OFF. Since the same key is also used as an ENTER key, the gauge is powered off by pressing and holding down the key until the unit powers off. Once the gauge is initially powered on, this key will function as the ENTER key, similar to a computer keyboard.

  • Page 6: Data Key

    DATA Key The DATA key accesses the data logging section of theTI-25DLX, which consists of 50 sequential (single column) files with 250 storage locations per file. Refer to section 9.0 for an explanation on Data Storage. CLR Key The CLR key is used in conjunction with the data logging section to clear a single stored memory location.

  • Page 7: The Display

    Here’s a quick overview of navigating through the various features in MENU: 1. Press the MENU key once to enter the sub menu items 2. Press the + and – keys to toggle through the features. 3. To enable or edit the status of any feature, press the ENTER key. 4.

  • Page 8: The Transducer

    G. Small 7 Segment: The material velocity, speed the sound wave travels through a given medium/material, is displayed in this area, informing the user what material the TI-25DLX is currently calibrated too. This area is also used for alpha messages in the menu and edit modes.
  • Page 9 The transducer must be used correctly in order for the TI-25DLX to produce accurate, reliable measurements. Below is a short description of the transducer, followed by instructions for its use. This is a bottom view of a typical transducer. The two semicircles of the wear face are visible, as is the barrier separating them.

  • Page 10: Top End Cap

    While the transducer is in contact with the material that is being measured, the TI-25DLX will perform four measurements every second, updating its display as it does so. When the transducer is removed from the surface, the display will hold the last measurement made.

  • Page 11: Time Versus Thickness Relationship

    3.0 PRINCIPLES OF ULTRASONIC MEASUREMENT Time versus thickness relationship Ultrasonic thickness measurements depend on measuring the length of time it takes for sound to travel through the material being tested. The ratio of the thickness versus the time is known as the sound velocity. In order to make accurate measurements, a sound velocity must be determined and entered into the instrument.

  • Page 12: Temperature

    Temperature Temperature has an effect on sound velocity. The higher the temperature, the slower sound travels in a material. High temperatures can also damage transducers and present a problem for various liquid couplants. Since the sound velocity varies with temperature it is important to calibrate at the same temperature as the material being measured.
  • Page 13 V-Path Correction Dual element delay line transducers have two piezoelectric elements focused towards one another at a slight angle, mounted on a delay line. One element is used for transmitting sound, while the other element receives the sound reflection. The two elements and their delay lines are packaged in a single housing but acoustically isolated from each other with an insulated sound barrier.

  • Page 14: Selecting The Measurement Mode

    4.0 SELECTING THE MEASUREMENT MODE Which mode & transducer do I use for my application? High penetration plastics and castings The most common mode for these types of applications is pulse-echo. Cast iron applications require 1 - 5MHz frequencies, and cast aluminum requires a 7 - 10MHz frequency depending on the thickness.
  • Page 15 Noisy Material Materials such as titanium, stainless steel, and aluminum may have inherent 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 or restricted access are best suited for higher frequencies and smaller diameter transducers.

  • Page 16: Making Measurements

    5.0 MAKING MEASUREMENTS The steps involved in making measurements are detailed in this section. The following sections outline how to setup and prepare your TI-25DLX for field use. An automatic or manual zero must always be performed. The auto zero is an ‘off block’ electronic zero that does not require a zero reference standard.

  • Page 17: Material Calibration

    The TI-25DLX is equipped with two zero options: 1. Off Block Zero (Automatic Probe Zero) – When this feature is enabled the TI-25DLX will do an electronic zero automatically, eliminating the need for a zero disk or reference standard. 2. On Block Zero (Manual Probe Zero) – When this feature is enabled the transducer must be placed on the probe zero disk (battery cover) located on the top of the unit.
  • Page 18 Known Velocity If the material velocity is known, it can be manually entered into the TI-25DLX , rather than have the TI-25DLX calculate the velocity value using a known thickness of the same material type. The steps for entering the velocity are outlined below: 1.
  • Page 19 4. Use the 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 the CAL routine without saving any changes.
  • Page 20 2. Apply a drop of couplant on the transducer and place the transducer in steady contact with either the minimum or maximum 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.
  • Page 21 approximation is acceptable. Follow the steps below to select a basic material type: Selecting a Basic Material Type 1. Press the key to access the material list. The edit icon will be illuminated and flashing. 2. Use the keys to scroll through the material options. 3.

  • Page 22: Velocity Gauge

    6.0 VELOCITY GAUGE Velocity Gauge (VX) The TI-25DLX includes a function to convert the unit into a dedicated velocity gauge. With this feature enabled, the TI-25DLX will display all measurements in terms of velocity, inches per microsecond (IN /μs) or meters per second (M /s), rather than dimensional inches or millimeters.

  • Page 23: Calibration To A Known Velocity

    The procedure is outlined as follows: NOTE: Be sure that a probe zero has been performed prior to performing this 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.
  • Page 24 1. 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 velocity measurement is stable and the repeatability indicator, in the top left corner of the display, is fully lit and stable.

  • Page 25: Additional Features

    7.0 ADDITIONAL FEATURES Gain The gain, or amplification of the return echoes, can be adjusted in the TI-25DLX to accommodate a variety of materials and applications. The setting of the gain is crucial in order to obtain valid readings during the measurement process. Too much gain may result in erroneous measurements, detecting on noise rather than the actual material back wall surface.

  • Page 26: Alarm

    5. When the desired GAIN setting is displayed, press the key to set the gain and return to the measurement screen. High Speed Scan The High Speed Scan feature of the TI-25DLX increases the overall repetition rate to a maximum of 140Hz with a high speed screen refresh rate of 25 times a second. This allows for making scanned passes over an arbitrary length of the test material, while still maintaining a reasonable representation of thickness over the area or region scanned.

  • Page 27: Differential

    4. Use the keys to toggle alarm on/off/beep. 5. When the desired ALRM status is displayed, press the key to set the status and edit the LO limit option. 6. Use the keys to scroll the LO limit value to the target value.

  • Page 28: Units

    6. Use the keys to scroll the NOMINAL value to the target value. Note: Pressing the key prior to pressing the key will abort to the measurement screen without saving changes. 7. When the target value is displayed, press the key to set the value and return to the measurement screen.

  • Page 29: Beep

    4. Use the keys to toggle status on/off/auto. Note: Pressing the key prior to pressing the key will abort to the measurement screen without saving changes. 5. When the desired LITE setting is displayed, press the key to set the status and edit the BRT (brightness) option.

  • Page 30: Zero

    Zero (Auto/Manual) There are two transducer zeroing options available in theTI-25DLX; auto and manual. The AUTO zero can be performed automatically without using a reference standard to zero the gauge (off block), while the MANUAL option requires a reference standard like the battery disk at the top of the gauge (on block).

  • Page 31: Probe Diameter

    The procedure to enable the velocity feature is outlined below: 1. Press the key to access the menu items/features. 2. Use the 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.

  • Page 32: Lock

    7.11 Lock The lock feature was built into the TI-25DLX for the purpose of locking the operators out of editing any of the gauge settings, for purposes of consistency between operators. When the lock feature is enabled, the gauge calibration functionality cannot be altered, as well as any of the individual features in the gauge.

  • Page 33: Data Storage

    8.0 DATA STORAGE Introduction The TI-25DLX is equipped with a basic and convenient sequential style data logger that’s intuitive to operate. By ‘sequential’ meaning a single column of 250 measurements and a total of 40 individual files, for a total storage capacity of 10,000 measurements.

  • Page 34: Clearing A File

    2. Press the key to store a measurement and advance to the next location (LOC). 3. Repeat steps 1 and 2 as needed. NOTE: If an area exists where a measurement cannot be obtained successfully, press the key to store OBST (obstruction) in the location. Pressing the again will clear the location.
  • Page 35 5. Use the keys to scroll to CLR (clear). 6). Press the. key to display the confirmation scree. CLR will be displayed, as well as a flashing Yes/No icon 7. Press the key for YES, and the key for NO. The edit icon will be illuminated and flashing.
  • Page 36 NOTE: Pressing the key prior to pressing the key 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 be displayed confirming the files are being cleared.

  • Page 37: Connectivity

    9.0 ADDITIONAL FEATURES Connectivity The TI-25DLX DL is connected to a PC with a USB-C to USB Type A cable, supplied with the kit (part# N-003-0330). The gauge has a file system and the PC will recognize it as an external hard disk, or thumb drive. It functions very similar to a cell phone or camera.

  • Page 38: Appendix A - Velocity Table

    10.0 APPENDIX A – SOUND VELOCITY TABLE Material Sound Velocity in/us Sound Velocity m/s Aluminum 0.2510 6375 Beryllium 0.5080 12903 Brass 0.1730 4394 Bronze 0.1390 3531 Cadmium 0.1090 2769 Columbium 0.1940 4928 Copper 0.1830 4648 Glass (plate) 0.2270 5766 Glycerine 0.0760 1930 Gold...

  • Page 39: Appendix B- Application Notes

    11.0 APPENDIX B – APPLICATION NOTES Measuring pipe and tubing When measuring a piece of pipe to determine the thickness of the pipe wall, orientation of the transducers is important. The transducer should be oriented so that the gap (sound barrier) in the wear face is perpendicular (at a right angle) to the length (long axis) of the tubing, allowing both sides of the transducer to make the same amount of contact.
  • Page 40 Measuring laminated materials Laminated materials are unique in that their density (and therefore sound-velocity) may vary considerably from one piece to another. Some laminated materials may even exhibit noticeable changes in sound-velocity across a single surface. The only way to reliably measure such materials is by performing a calibration procedure on a sample piece of known thickness.

  • Page 41: Warranty

    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@abqindustrial.net 12.0 WARRANTY ELECTROMATIC Equipment Co., Inc. (ELECTROMATIC) warrants to the original purchaser that this product is of merchantable quality and confirms in kind and quality with the descriptions and specifications thereof.

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