Dakota-ultrasonics MMX-7 Manuel d'utilisateur

OPERATION MANUAL DAKOTA ULTRASONICS MMMMXX--77 Data Logging Thickness Gauge P/N P-160-0002 Rev 1.10, January 2008

Dakota Ultrasonics 6 Known Thickness Sometimes the sound velocity of a material is unknown. In this case a sample with a known thickness can be used

MMX-7 Data Logging Ultrasonic Thickness Gauge 7 3) Use the UP and DOWN arrow keys to scroll through the sub menu items until ONE POINT is highlight

Dakota Ultrasonics 8 Basic Material Type If the material velocity is unknown, and a sample thickness cannot be taken from the material, the user may o

MMX-7 Data Logging Ultrasonic Thickness Gauge 9 2.3 Measure The MMX-7 is now ready to measure. There are two different measurement view options, ea

Dakota Ultrasonics 10 been set to BSCAN. Use the following steps to adjust these settings directly from the measurement screen as follows: Adjustin

MMX-7 Data Logging Ultrasonic Thickness Gauge 11 4) Press the LEFT and RIGHT arrow keys to scroll the digit locations. 5) Repeat steps 3 & 4

12 CHAPTER THREE KEYBOARD, MENU, & CONNECTOR REFERENCE 3.1 Menu Key (Operation & Sub Menus ) The Menu key activates the primary me

MMX-7 Data Logging Ultrasonic Thickness Gauge 13 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to ta

Dakota Ultrasonics 14 AGC: The MMX-7 is equipped with an automatic gain control when operating in echo-echo mode only. This is much like turning the

MMX-7 Data Logging Ultrasonic Thickness Gauge 15 B-DEP: Provides the user the ability to change the overall depth of the viewable measurement area.

Dakota Ultrasonics 16 3.7 UTIL (utilities) – Menu Scan Mode: This function enables a hi speed scan mode that increases the overall sample ra

MMX-7 Data Logging Ultrasonic Thickness Gauge 17 3.9 CLR (clear) Key The primary functions of the CLR key, is to clear a measurement from a g

Dakota Ultrasonics 18 1) Use the UP, DOWN, LEFT, and RIGHT arrow keys to increase and decrease the values of the hot function fields. 2) Repeat step

MMX-7 Data Logging Ultrasonic Thickness Gauge 19 The Arrow Keys are used to navigate through the menus, increase/decrease values, and toggle specifi

Dakota Ultrasonics 20 The top & bottom end panels are where all connections are made to the MMX-7. The diagram above shows the layout and descrip

21 CHAPTER FOUR PRINCIPALS OF ULTRASONIC MEASUREMENT 4.1 Time versus thickness relationship Ultrasonic thickness measurements depend on measuring the

Dakota Ultrasonics 22 through air efficiently. By using a liquid couplant between the transducer and test piece the amount of ultrasound entering the

MMX-7 Data Logging Ultrasonic Thickness Gauge 23 packaged in a single housing but acoustically isolated from each other with a sound barrier. This

Dakota Ultrasonics 24 4.7 Glossary of terms Repetition Rate & Display Update The repetition rate is how often the MMX-7 generates a burst of ultra

25 CHAPTER FIVE SELECTING THE MEASUREMENT MODE 5.1 The setup library The MMX-7 contains 64 user configurable preset locations to store custom setups

CHAPTER ONE INTRODUCTION...1 CHAPTER TWO QUICK STARTUP GUIDE ...

Dakota Ultrasonics 26 Thru coating measurements require special high damped transducers. The most common transducers are the 3.5, 5, and 7.5MHz hi da

MMX-7 Data Logging Ultrasonic Thickness Gauge 27 5.3 Factory Setup Chart Num Name Comment 1 Gn/AGC Velocity 1 STEEL BASIC 45 0.2330 in/

28 CHAPTER SIX MAKING MEASUREMENTS The steps involved in making measurements are detailed in this section. The following sections outline how to set

MMX-7 Data Logging Ultrasonic Thickness Gauge 29 Selecting the Transducer Type 1) Press the MENU key once to activate the menu items tab. Press

Dakota Ultrasonics 30 Selected from a Setup Important Note: Stored setups will save all the parameters of the MMX-7. Therefore, if a transducer was

MMX-7 Data Logging Ultrasonic Thickness Gauge 31 6) Press the OK key to select the setup and return to the menu screen, or ESC to cancel the select

Dakota Ultrasonics 32 Selected Using The Tabbed Submenu Items 1) Press the MENU key once to activate the menu items tab. Press the MENU key multip

MMX-7 Data Logging Ultrasonic Thickness Gauge 33 Performing a Probe Zero 1) Clean the surface of the Probe Zero Disk, located on top of the MMX-7 (

Dakota Ultrasonics 34 all of the measurements the gauge makes will be erroneous by some fixed percentage. The One Point calibration is the simplest

MMX-7 Data Logging Ultrasonic Thickness Gauge 35 8) Finally, press the MEAS key to return to the measurement screen and begin taking readings.

Dakota Ultrasonics 36 One Point Calibration Note: Be sure that a probe zero has been done prior to performing this calibration procedure. 1) Physi

MMX-7 Data Logging Ultrasonic Thickness Gauge 37 4) Press the ENTER key to display the Digits Edit Box. 5) Press the UP and DOWN arrow keys to scr

Dakota Ultrasonics 38 1) Using a set of calipers, physically measure two known thickness locations on the sample of material. Note: The two locatio

MMX-7 Data Logging Ultrasonic Thickness Gauge 39 second known thickness location. Be sure that the reading is stable and the repeatability indicato

Dakota Ultrasonics 40 Built in Material Selection 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to

41 CHAPTER SEVEN USING THE DIGITS & B-SCAN DISPLAYS A key feature of the MMX-7 is the ability to toggle between two different display options, Di

Dakota Ultrasonics 42 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until VIEW is highlighted. 3) Use the LEFT and RIGHT ar

MMX-7 Data Logging Ultrasonic Thickness Gauge 43 signal. If the MMX-7 is displaying a reading from memory, the repeatability indicator will be repla

Dakota Ultrasonics 44 B-Scan View B-Scan The B-Scan displays a time based cross section view of test material. This view is commonly used to display

MMX-7 Data Logging Ultrasonic Thickness Gauge 45 D) B-Scan Display Area – This is the area representing where the B-Scan will be drawn. Notice the

1 CHAPTER ONE INTRODUCTION The Dakota Ultrasonics model MMX-7 is a digital ultrasonic thickness gauge with a time based B-Scan and alpha numeric data

Dakota Ultrasonics 46 Overall range (B-DEP) Once again, just to reiterate, B-DEP is the overall viewable thickness range being tested. This should be

MMX-7 Data Logging Ultrasonic Thickness Gauge 47 The user can also access and adjust the B-DEP range from the tabbed menus. However, this method is

Dakota Ultrasonics 48 9) Finally, press the MEAS key to return to the measurement screen and begin taking readings. Starting depth (B-ST) The startin

MMX-7 Data Logging Ultrasonic Thickness Gauge 49 2) Press the UP, DOWN, LEFT, and RIGHT arrow keys to scroll the highlighted value. 3) Alternative

Dakota Ultrasonics 50 3) Press the LEFT and RIGHT arrow keys to scroll the value. When the correct Bscan Start is being displayed, proceed to step 8

MMX-7 Data Logging Ultrasonic Thickness Gauge 51 How do I know when to increase the gain? Often times the user will be trying to measure a material

Dakota Ultrasonics 52 The user can also access and adjust the gain from the tabbed menus. However, this method is more tedious than making the adjust

53 CHAPTER EIGHT THRU PAINT MEASUREMENT TECHNIQUE 8.1 Introduction to Thru Paint Measurement The principle behind thru paint measurement is by measur

54 CHAPTER NINE ADDITIONAL FEATURES OF THE MMX-7 9.1 High Speed Scan The High Speed Scan feature of the MMX-7 increases the overall sample rate from

MMX-7 Data Logging Ultrasonic Thickness Gauge 55 activate and utilize only one of the limit values, depending on their specific application requirem

2 CHAPTER TWO QUICK STARTUP GUIDE Turn the MMX-7 on and off using the switch located on the bottom right corner of the keypad. When MMX-7 is initial

Dakota Ultrasonics 56 3) Use the LEFT and RIGHT arrow keys to toggle the ALARM STATUS on/off/audible. 4) Continue on to the next section “Setting the

MMX-7 Data Logging Ultrasonic Thickness Gauge 57 Setting the Alarm HI Limit 1) Assuming the ALARM STATUS is ON,use the UP and DOWN arrow keys to

58 CHAPTER TEN DATA STORAGE – SETUP, EDIT, & VIEW FILES 10.1 Introduction to Grid (spreadsheet) format Data is stored in the MMX-7 in a spreadshe

MMX-7 Data Logging Ultrasonic Thickness Gauge 59 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to t

Dakota Ultrasonics 60 Creating a Grid Note 1) Use the UP and DOWN arrow keys to scroll through the new Grid List Items until NOTE is highlighted.

MMX-7 Data Logging Ultrasonic Thickness Gauge 61 5) Use the CLR key to backspace if necessary. 6) Repeat steps 3 through 5 until the Grid Note is

Dakota Ultrasonics 62 2) Press the ENTER key to activate the Coordinate Edit Box. 3) Use the LEFT, & RIGHT arrow keys to scroll the Columns, an

MMX-7 Data Logging Ultrasonic Thickness Gauge 63 2) Press the ENTER key to activate the Coordinate Edit Box. 3) Use the LEFT, & RIGHT arrow k

Dakota Ultrasonics 64 Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to adva

MMX-7 Data Logging Ultrasonic Thickness Gauge 65 Saving a Grid Once all the parameters are set, the user has the option of saving or canceling the

MMX-7 Data Logging Ultrasonic Thickness Gauge 3 3) Press the ENTER key to display the list of transducer types. 4) Press the UP and DOWN arrow key

Dakota Ultrasonics 66 4) Press the MEAS key to return to the measurement screen and begin storing readings. 10.3 Storing a reading Now that a grid h

MMX-7 Data Logging Ultrasonic Thickness Gauge 67 6) Abort the Grid View Box by pressing the MEAS key at any time. Note: Every time a reading is sa

Dakota Ultrasonics 68 4) The user may opt to clear a specific reading and save a new one at any time. Press the CLR key in the appropriate cell loca

MMX-7 Data Logging Ultrasonic Thickness Gauge 69 3) Press the ENTER key to display the Grid List Box. 4) Use the UP and DOWN arrow keys to scrol

Dakota Ultrasonics 70 3) Press the ENTER key to activate the confirmation screen. 4) Press the OK key to delete All Files from memory, or the ESC k

MMX-7 Data Logging Ultrasonic Thickness Gauge 71 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to t

Dakota Ultrasonics 72 9) Repeat steps 6 - 8 until the Comments are completed. 10) Press the UP or DOWN arrow key to highlight SAVE CHANGES, and the

MMX-7 Data Logging Ultrasonic Thickness Gauge 73 The user may have transferred grid templates from a PC to the MMX-7, or setup grids using the MMX-7

Dakota Ultrasonics 74 5) Press the ENTER key to activate the confirmation screen. 6) Press the OK key to load the grid from memory. 7) Press the M

75 CHAPTER ELEVEN SETUPS – CREATE, STORE, EDIT, & RECALL 11.1 Introduction to Setups Often times, users are faced with a variety of tasks and app

Dakota Ultrasonics 4 4) Press the OK key to complete the probe zero function, or ESC key to cancel the probe zero function. 5) Remove the transducer

Dakota Ultrasonics 76 Opening a Setup 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right an

MMX-7 Data Logging Ultrasonic Thickness Gauge 77 5) Press the ENTER key to activate the confirmation screen. 6) Press the OK key to load the setup

Dakota Ultrasonics 78 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until SAVE is highlighted. 3) Press the ENTER key to di

MMX-7 Data Logging Ultrasonic Thickness Gauge 79 12) Press the OK key to activate the confirmation screen. 13) Press the OK key to save the Setup,

Dakota Ultrasonics 80 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key mul

MMX-7 Data Logging Ultrasonic Thickness Gauge 81 CHAPTER TWELVE USING THE UTILITY SOFTWARE 12.1 Computer System Requirements MvxPvxView will run on

82 APPENDIX A - VELOCITY TABLE Material sound velocity in/us sound velocity m/s Aluminum 0.2510 6375 Beryllium 0.5080 12903 Brass

MMX-7 Data Logging Ultrasonic Thickness Gauge 83 Tin 0.1310 3327 Titanium 0.2400 6096 Tungsten 0.2040 5182 Uranium 0.1330 3378 Water

84 APPENDIX A - SETUP LIBRARY Num Name Comment 1 Gn/AGC Velocity 1 STEEL BASIC 45 0.2330 in/uSec 2 STEEL THRU PNT STD ¼ 5MHZ HD 15

MATERIAL SAFETY DATA SHEETN/A = not applicable or not available (To comply with 29 CFR 1910.1200) Effective Date: 2/1/04SECTION 1 – PRODUCT IDENTIFICA

MMX-7 Data Logging Ultrasonic Thickness Gauge 5 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until VELOCITY is highlighte