Dakota-ultrasonics MMX-6DL Manuel d'utilisateur

OPERATION MANUAL DAKOTA ULTRASONICS MMX-6 DL MULTI-MODE ULTRASONIC THICKNESS GAUGE P/N P-143-0002 Rev 1.10 / 11, January 2008

Dakota Ultrasonics 6The MEM key enables/disables the data logging feature of the MMX-6 DL. This key is used in conjunction with the UP/DOWN arrows,

MMX-6 DL Ultrasonic Thickness Gauge 7 The Display The numeric portion of the display consists of 4 complete digits preceded by a leading "1"

Dakota Ultrasonics 8When the IN symbol is on, the MMX-6 DL is displaying a thickness value in inches. The maximum thickness that can be displayed is

MMX-6 DL Ultrasonic Thickness Gauge 9 When the + symbol is on and blinking, this indicates that the MMX-6 DL is currently operating in echo-echo ( T

Dakota Ultrasonics 10The Transducer The transducer is the "business end" of the MMX-6 DL. It transmits and receives ultrasonic sound waves

MMX-6 DL Ultrasonic Thickness Gauge 11This is a top view of a typical transducer. Press against the top with the thumb or index finger to hold the t

Dakota Ultrasonics 12If the Stability Indicator has fewer than five bars darkened, or the numbers on the display seem erratic, first check to make su

MMX-6 DL Ultrasonic Thickness Gauge 13Condition and Preparation of Surfaces In any ultrasonic measurement scenario, the shape and roughness of the te

Dakota Ultrasonics 14Probe Zero Setting the Zero Point of the MMX-6 DL is important for the same reason that setting the zero on a mechanical microme

MMX-6 DL Ultrasonic Thickness Gauge 156) While the transducer is firmly coupled to the probe-disc, press the PRB-0 key on the keypad. The MMX-6 DL

Dakota Ultrasonics Copyright  2008 Dakota Ultrasonics. All rights reserved. No part of this publication may be reproduced, translated into another l

Dakota Ultrasonics 16calibration is the simplest and most commonly used calibration procedure - optimizing linearity over large ranges. The two poin

MMX-6 DL Ultrasonic Thickness Gauge 17Calibration to a known thickness Note: This procedure requires a sample piece of the specific material to be m

Dakota Ultrasonics 18velocity value it has calculated based on the thickness value that was entered in step 7. 9) Press the CAL key once more to exi

MMX-6 DL Ultrasonic Thickness Gauge 19Calibration to a known velocity Note: This procedure requires that the operator know the sound-velocity of the

Dakota Ultrasonics 20varies from lot to lot and from manufacturer to manufacturer. Calibration to a sample of known thickness will ensure that the t

MMX-6 DL Ultrasonic Thickness Gauge 21Two Point Calibration Note: This procedure requires that the operator has two known thickness points on the t

Dakota Ultrasonics 228) Press the Probe key. The display will flash 1OF2. Repeat steps 3 through 7 on the second calibration point. The MMX-6 DL

MMX-6 DL Ultrasonic Thickness Gauge 23The Back light The back light of the MMX-6 DL can be set to three different positions on/off/auto. The

Dakota Ultrasonics 24measurements every second. While the transducer is in contact with the material being measured, the MMX-6 DL is keeping track o

MMX-6 DL Ultrasonic Thickness Gauge 25Using the Beeper 1) Press ON/OFF key to power up the unit. 2) Press MODE key to activate features and setting

MMX-6 DL Ultrasonic Thickness Gauge CONTENTS INTRODUCTION OPERATION THE KEYPAD THE DISPLAY THE TRANSDUCER MAKING MEASUREMENTS CONDITION AND PREPARATIO

Dakota Ultrasonics 26Dual-Multi Mode Often times users and inspectors in the field are faced with coated materials such as pipes and tanks. Typicall

MMX-6 DL Ultrasonic Thickness Gauge 275) Press the MODE key once again to return to measurement mode. RS232 Serial Port & The Data Logger The MMX

Dakota Ultrasonics 28 Note: Communications software packages generally have the ability to capture the screen data to a common text file. This text

MMX-6 DL Ultrasonic Thickness Gauge 293) Press the SEND key to enter file setup. Using the Data Logger (con't) • The current file will be dipl

Dakota Ultrasonics 309) Repeat step 8 as required. Clearing a Storage Location The user may require a storage location, that is currently full, be o

MMX-6 DL Ultrasonic Thickness Gauge 31Clearing an Entire File The user may require the contents of an entire file be completely cleared of all measur

Dakota Ultrasonics 32Clearing all Files 1) Press the ON/OFF key to power up the MMX-6 DL. 2) Immediately press the CLR key. CLr? Will be displayed

MMX-6 DL Ultrasonic Thickness Gauge 33Printing a File The user may wish to print an individual file to a serial printer or computer. A file can, ver

Dakota Ultrasonics 34 TRANSDUCER SELECTION The MMX-6 DL is inherently capable of performing measurements on a wide range of materials, from various m

MMX-6 DL Ultrasonic Thickness Gauge 35reduce the strength of the waves, and thus, the MMX-6 DL's ability to detect the returning echo. Higher fr

Dakota Ultrasonics DISCLAIMER – Very Important! Inherent in ultrasonic thickness measurement is the possibility that the instrument will use the sec

Dakota Ultrasonics 36Selection of the proper transducer is often a matter of tradeoffs between various characteristics. It may be necessary to exper

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Dakota Ultrasonics 38APPENDIX A Product Specifications Physical Weight: 10 ounces Size: 2.5W x 4.75H x 1.25D inches (63.5W x 120.6H x 31.75D

MMX-6 DL Ultrasonic Thickness Gauge 39 APPENDIX B Application Notes • Measuring pipe and tubing When measuring a piece of pipe to determine the thic

Dakota Ultrasonics 40above this point, the change in sound velocity of the material being measured starts to have a noticeable effect upon ultrasonic

MMX-6 DL Ultrasonic Thickness Gauge 41An additional important consideration when measuring laminates, is that any included air gaps or pockets will c

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MMX-6 DL Ultrasonic Thickness Gauge 43APPENDIX C Sound Velocities of some Common Materials Material sound velocityin/usm/sAluminum0.2506350Bismuth 0.

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MMX-6 DL Ultrasonic Thickness Gauge 45 WARRANTY INFORMATION • Warranty Statement • Dakota Ultrasonics warrants the MMX-6 DL against defects in mate

MMX-6 DL Ultrasonic Thickness Gauge 1 INTRODUCTION The Dakota Ultrasonics model MMX-6 DL is a precision Ultrasonic Micrometer. Based on the same op

MATERIAL SAFETY DATA SHEETN/A = not applicable or not available (To comply with 29 CFR 1910.1200)SECTION 1 – PRODUCT IDENTIFICATIONProduct Name: SOUND

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MMX-6 DL Ultrasonic Thickness Gauge 3 OPERATION The MMX-6 DL interacts with the operator through the membrane keypad and the LCD display. The funct

Dakota Ultrasonics 4The PRB-0 key is used to "zero" the MMX-6 DL in much the same way that a mechanical micrometer is zeroed. If the tool

MMX-6 DL Ultrasonic Thickness Gauge 5 The UP arrow key has three functions. When the MMX-6 DL is in calibration mode, this key is used to increase n