ABQ Industrial Dakota Ultrasonics ZX-2 Instruction Manual
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ABQ Industrial Dakota Ultrasonics ZX-2 Instruction Manual

Ultrasonic wall thickness gauge
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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
Dakota Ultrasonics ZX-2 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
Web: https://www.abqindustrial.net E-mail: info@abqindustrial.net

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Summary of Contents for ABQ Industrial Dakota Ultrasonics ZX-2

  • 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 Dakota Ultrasonics ZX-2 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

    CONTENTS CHAPTER ONE INTRODUCTION ..............1  1.1 D ......................... 1  ISCLAIMER CHAPTER TWO KEYPAD, MENU, DISPLAY & CONNECTORS ..... 2  2.1 ON/OFF/ENTER K …..................... 2  2.2 PRB 0 K …........................2  2.3 VEL K ….......................... 3  2.4 LIGHT K ….

  • Page 3: Chapter One Introduction

    CHAPTER ONE INTRODUCTION The Dakota Ultrasonics model ZX-2 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 ZX-2 is capable of measuring the thickness of various materials with accuracy as high as ...

  • Page 4: Chapter Two Keypad, Menu, Display & Connectors

    CHAPTER TWO KEYPAD, MENU, DISPLAY & CONNECTORS The Keypad 2.1 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.

  • Page 5: Vel Key

    ZX-2 Ultrasonic Thickness Gauge 2.3 VEL Key The VEL key is used to enter and exit the ZX-2's calibration mode. This mode is used to adjust the sound velocity value that the ZX-2 will use for a given material type. Enter a known velocity value for specific material type, or manually continue adjusting the value until the ZX-2 displays the correct thickness value using a test sample or calibration block with a known thickness.

  • Page 6: The Display

    2.8 The Display The ZX-2 uses a custom glass LCD backlit low temperature display for use in a variety of climate conditions. It contains graphic icons, as well as both 7 and 14 segment display areas. Let’s take a closer look and what all these things are telling Note: This display is used for multiple gauge models in the ZX &...

  • Page 7: The Transducer

    ZX-2 Ultrasonic Thickness Gauge G. Small 14 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 ZX-2 is currently calibrated too. This area is also used for alpha messages in the menu and edit modes.
  • Page 8 Dakota Ultrasonics This is a bottom view of a typical transducer. The two semicircles of the wear face are visible, as is the barrier separating them. One of the semicircles is responsible for conducting ultrasonic sound into the material being measured, and the other semicircle is responsible for conducting the echoed sound back into the transducer.

  • Page 9: Top End Cap

    ZX-2 Ultrasonic Thickness Gauge When the transducer is removed from the surface, the display will hold the last measurement made. 2.10 Top End Cap The top end cap is where all connections are made to the ZX-2. The diagram above shows the layout and description of the connectors: Transducer Connectors Refer to Diagram: The transducer connectors and battery cover/probe zero disk are...

  • Page 10: Chapter Three Principals Of Ultrasonic Measurement

    CHAPTER THREE PRINCIPALS OF ULTRASONIC MEASUREMENT 3.1 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 11: Temperature

    ZX-2 Ultrasonic Thickness Gauge 3.5 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 12 Dakota Ultrasonics surface of the test material does not have to be as flat in order to obtain good 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 delay-line transducers is the V shaped sound path.

  • Page 13: Chapter Four Selecting The Measurement Mode

    CHAPTER FOUR SELECTING THE MEASUREMENT MODE 4.1 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 14 Dakota Ultrasonics 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 15: Chapter Five Making Measurements

    CHAPTER FIVE MAKING MEASUREMENTS The steps involved in making measurements are detailed in this section. The following sections outline how to setup and prepare your ZX-2 for field use. A manual zero must always be performed. A manual probe zero is performed using the reference disk (battery disk) attached to the top of the instrument.

  • Page 16: Velocity Calibration

    Dakota Ultrasonics 1) Apply a drop of couplant on the transducer and place the transducer in steady contact with the disk (battery cover) located at the top of the unit 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 17: Basic Material Type

    ZX-2 Ultrasonic Thickness Gauge 2) Use the keys to scroll the velocity to the known target 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 18 Dakota Ultrasonics 2) Use the keys to scroll through the material options. in/µs ALUMINUM 0.250 6350 (2024) 0.233 5918 STEEL (4340) 0.223 5664 STAINLESS (303) 0.180 4572 CAST IRON 0.106 2692 PLEXIGLASS 0.094 2388 0.092 2337 POLYSTYRENE 0.070 1778 POLYURETHANE USER PROGRAMMABLE 3) When the desired MATL setting is displayed, press the key to set the...
  • Page 19 ZX-2 Ultrasonic Thickness Gauge 7) Note: Pressing the key prior to pressing the key will abort to the measurement screen without saving any changes.

  • Page 20: Chapter Six Additional Features

    CHAPTER SIX ADDITIONAL FEATURES 6.1 Units The ZX-2 will operate in both English (inches) or Metric (millimeters) units. The procedure to select the units is outlined as below: Units 1) Press the key to toggle inches/millimeters (IN/MM). 6.2 Light The ZX-2 uses a custom glass segmented display that is equipped with a backlight for use in low light conditions.

  • Page 21: Lock

    ZX-2 Ultrasonic Thickness Gauge Note: Pressing the key prior to pressing the key will abort to the measurement screen without saving changes. 3) When the desired LITE setting is displayed, press the key to set the status and edit the BRT (brightness) option. 4) Use the keys to scroll through the BRT (LO, MED, HI) options.

  • Page 22: Factory Defaults

    Dakota Ultrasonics 2) To unlock the ZX-2 repeat step one, but hold down the key while powering the ZX-2 on 6.4 Factory Defaults The ZX-1 can be reset to factory defaults at any time to restore the original gauge settings. This should only be used if the gauge is not functioning properly, or perhaps multiple features have been enabled and a clean start is needed.

  • Page 23: Appendix A - Velocity Table

    APPENDIX A - VELOCITY TABLE Material sound velocity sound velocity in/us 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 0.1280 3251 Inconel...
  • Page 24 Dakota Ultrasonics 0.1310 3327 Titanium 0.2400 6096 Tungsten 0.2040 5182 Uranium 0.1330 3378 Water 0.0580 1473 Zinc 0.1660 4216 Zirconium 0.1830 4648...

  • Page 25: Appendix B- Application Notes

    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 26 Dakota Ultrasonics the probe be left in contact with the surface for as short a time as needed (intermittent contact) to acquire a stable measurement. 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.
  • Page 27 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 WARRANTY INFORMATION  Warranty Statement  Dakota Ultrasonics warrants the ZX-1 against defects in materials and workmanship for a period of five years from receipt by the end user. Additionally, Dakota Ultrasonics warrants transducers and accessories against such defects for a period of 90 days from receipt by the end user.

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