GE MFE DMS 2 Operating Manual
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GE MFE DMS 2 Operating Manual

GE MFE DMS 2 Operating Manual

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Inspection Technologies
Ultrasonics
Krautkramer DMS 2 / 2E
Operating Manual
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Summary of Contents for GE MFE DMS 2

  • Page 1 Inspection Technologies Ultrasonics Krautkramer DMS 2 / 2E Operating Manual www.ge.com/inspectiontechnologies...
  • Page 2 GE Inspection Technologies Ultrasonics DMS 2/DMS 2E Operating Manual Ident-Nr. 021-002-151, Rev. H...
  • Page 3 THIS PAGE INTENTIONALLY BLANK...
  • Page 4 Important Notice Important Notice Operator Training The following information must be read and understood by any Operators must receive adequate training before using ultra- user of a Krautkramer ultrasonic thickness gauge. Failure to sonic test equipment. Operators must be trained in general follow these instructions can lead to errors in thickness mea- ultrasonic testing procedures and in the set up and perfor- surements or other test results.
  • Page 5 Important Notice When a less-than-complete inspection is to be performed, the Calibration of Sound Velocity operator must be shown the specific areas to inspect. Infer- The principle of operation of an ultrasonic thickness gauge is ences about the condition of areas not inspected, based on that the instrument measures the time of flight of an ultrasonic data from the evaluated areas, should only be attempted by pulse through the test piece and multiplies this time by the...
  • Page 6 Important Notice Probe Zero Procedure Use of Couplants The probe zero procedure must be performed as described in Operators must be familiar with the use of ultrasonic couplants. this manual. The probe zero block should be clean, in good Testing skills must be developed so that couplant is used and condition, without noticeable wear.
  • Page 7 Important Notice thickness greater than twice the minimum of the specified range. This thickness should be determined by calibrating the instrument/transducer combination on reference blocks that represent the complete range of possible thicknesses that may be encountered in testing. This is particularly important when the test piece is being ultrasonically measured for the first time or in any case where the history of thickness of the test specimen is unknown.

  • Page 8: Table Of Contents

    Table of Contents Contents ................... Page ................Page 3.2 Initial Instrument Setup ........... 46 1. Getting Started ..............1 3.2.1 Display Adjustment ........48 1.1 How To Use This Manual .......... 1 3.2.2 Global Settings ........... 50 1.2 Ten Steps to Launch Your Gauge ......1 3.2.3 OPER (Operation) Settings ......
  • Page 9 Table of Contents ................... Page ................... Page 3.4.3 Creating a Data File ........75 4.3 Data Enhancement Features ........ 102 3.4.4 Editing the Names of Elevations, 4.3.1 Attaching Comments to a Data Point ..102 Locations, and other File Content Labels ... 82 4.3.2 Recording Detailed Measurements with a 3.4.5 Storing A-scans with Thickness Micro-Grid ..........
  • Page 10 Table of Contents ................... Page c ................. Page 5.3 Modifying a Data File’s Organization and 5. Working with Stored Data ........... 135 Contents ............... 156 5.1 Introduction to the Data Recorder (DR) Mode ..135 5.3.1 Editing Existing Files with the Append, 5.1.1 Selecting an Existing Data File ....
  • Page 11 Table of Contents ................... Page ................... Page 6.3.1 Selecting the Report Type ......170 8.4.1 Specify Topcoat Probe and Measurement Mode ............184 6.3.2 Transmitting a Report ....... 171 8.4.2 Calibrating for T-COAT Measurement 7. Specifications .............. 172 Mode ............185 7.1 DMS 2 Specifications ..........

  • Page 12: Getting Started

    1. Getting Started 1. Getting Started Ten Steps to Launch Your Gauge How To Use This Manual This quick-start procedure is designed to help you quickly use This manual will explain how to set up and operate the DMS 2 the instrument.
  • Page 13 1. Getting Started FIGURE 1-1—Install four AA alkaline batteries in the instrument as shown here. Step 2: Select a compatible probe and plug its cable into the top of the gauge as shown in Figure 1-2. Note that if you install under each selection to choose the settings shown in a single-element style probe, you won’t be able to select the dual measurement mode as specified in Step 3.
  • Page 14 1. Getting Started FIGURE 1-2—The instrument’s connectors are shown here. Step 4: If you select the AUTO zeroing procedure, the instru- NOTE: Couplant must be used between the measurement ment will zero the probe on its own. If instead you selected surfaces of all probes and the material being tested.
  • Page 15 1. Getting Started FIGURE 1-3—Shown here are the five selections contained in the TGMODE submenu. Follow the instructions in this figure to continue the initial setup of your instrument. Page 4 DMS 2 Operating Manual...
  • Page 16 1. Getting Started • Select a test standard with a known thickness. The couplant and couple the attached probe to the material that standard should be made of the same material that you’ll be testing, and ≥ the thickest measurement expected. •...
  • Page 17 1. Getting Started Step 6: Press to activate the Test Mode. Your DMS 2 display should look like the one shown in Figure 1-5. Apply couplant to test sample you wish to test. It’s best to select a test sample that’s free of paint and coating. If you’re testing material that has a coating or paint, you must select a multi- echo measurement mode (Return to Step 3 and set the mode to Dual-M, S-Peak or S-Flank.
  • Page 18 1. Getting Started FIGURE 1-5—With the probe coupled (be sure to use couplant) and the instrument set to the Test mode, the DMS 2 display should look like the one shown here. If your instrument isn’t registering a thickness value, first try adjusting the GAIN, so that the A-scan ECHO crosses the A-gate.
  • Page 19 1. Getting Started Step 7: Thickness data can be stored in data files in the onboard data recorder. Before data can be recorded, a file • With the item START POINT highlighted, press below must be created using the FILE CREATION FUNCTION. This the VALUE selection until the number 3 appears.
  • Page 20 1. Getting Started FIGURE 1-6—Pressing activates the FILE CREATION FUNCTION. Here, the user completes the first step in the file creation process by specifying the file type. (In this case, the LINEAR file type has been selected.) The user then defines various file features called ITEMs.
  • Page 21 1. Getting Started Step 8: Now that the file type and size have been specified, • Complete the file creation process as shown in Figure the file must be named. You’ll input the FILE NAME by using 1-6. The instrument will acknowledge the new file name, the VIRTUAL KEYBOARD.
  • Page 22 1. Getting Started FIGURE 1-7—The VIRTUAL KEYBOARD is shown here. DMS 2 Operating Manual Page 11...
  • Page 23 1. Getting Started • When you’ve completed this second part of the file • Note that after the thickness measurement is sent to the data file, the next file position (remember, you created a linear file with 8 positions) becomes active. Simply press creation process, press below the selection labeled again to send the next thickness reading to the...
  • Page 24 1. Getting Started FIGURE 1-8—The TEST screen looks different when a data file is active. Note that the grid at the top of the screen (known as a Spreadsheet View) shows some of the positions within the active data file. DMS 2 Operating Manual Page 13...

  • Page 25: How The Dms 2 Measures Thickness

    1. Getting Started Now that you’ve completed this quick-start procedure, you The sound-transmitting probe can have either one or two should be able to take and record measurement data into a elements. The elements are responsible for sending and/or data file. Obviously, there are many other important features receiving sound pulses.
  • Page 26 1. Getting Started FIGURE 1-9—The operation of a dual-element probe is shown here. SIP Measurement Mode When the DMS 2 is operating in the dual mode, the A-scan display graphs the amplitude of the actual ultrasonic pulse as The SIP mode uses a single element probe to transmit a sound it’s received by the probe.
  • Page 27 1. Getting Started FIGURE 1-10—A typical A-scan display for the dual measurement mode is shown here. Page 16 DMS 2 Operating Manual...
  • Page 28 1. Getting Started The Multi-Echo Measurement Modes The multi-echo measurement modes (there are actually three multi-echo type modes) are called “multi-echo” because they rely on multiple backwall echoes to determine material thick- ness. Multi-echo modes are used to test materials that are coated or painted.
  • Page 29 1. Getting Started FIGURE 1-12—A typical A-scan display for the multi-echo mode is shown here. Page 18 DMS 2 Operating Manual...

  • Page 30: Important Features Of The Dms 2

    1. Getting Started reduces or eliminates the multiples of the coating layer, Built-in interfacing capabilities allow the DMS 2 to transmit reducing interference with the desired measurement of the recorded data and A-scan images to a printer or computer. metal. The CA211A probe may also provide good results. These capabilities also make it possible to program the (Refer to Chapter 7.) instrument using a personal computer.

  • Page 31: What's In This Manual

    1. Getting Started • A power supply that delivers 40 hours of battery life from • User definable Microgrids can be inserted into any data four AA size alkaline batteries (Standard Nicad recharge- file to allow for highly-detailed localized data collection. able batteries may also be used.) •...
  • Page 32 1. Getting Started Chapter 2 describes how to fully utilize the instrument’s A special Note About DMS 2 and DMS 2E Coverage in various features with the menu system. This Manual: Chapter 3 describes how to install batteries, prepare the This manual explains how to use the DMS 2 family of DMS 2 for operation, select the appropriate measurement instruments.

  • Page 33: Understanding The Dms 2 Keyboard, Menu System, And Displays

    2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays 2. Understanding the DMS 2 Keyboard, Menu System, and Displays The DMS 2 is designed to measure remaining wall thickness in ment and data-recording needs. You’ll also be able to make all types of equipment that are prone to corrosion and/or better use of the detailed information found throughout the rest erosion, as well as in general thickness gauging applications.
  • Page 34 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-1—In the TG mode, the instrument’s thickness measurement features are specified. Measurement data is taken and recorded in the Test mode, and stored data is organized and evaluated in the DR mode. DMS 2 Operating Manual Page 23...

  • Page 35: Menu System

    2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays identified here. You’ll learn much more about the content of TG Secondary Menu—Used to specify features that are each type of display later in this chapter. adjusted less often, including screen appearance, language options, and printer/computer communications In addition to these most-often used modes, a fourth mode also exists: the File Creation mode .
  • Page 36 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays that the selections listed in the five boxes across the bottom of When the DMS 2 is powered on, or when is pushed, the the display change to match the submenu. When the desired instrument is in TG mode and the TG Primary Menu is dis- submenu is indicated, its selections will appear in the boxes played.
  • Page 37 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-2—This illustration shows the TG Primary Menu. Page 26 DMS 2 Operating Manual...
  • Page 38 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays TG PRIMARY MENU ALARM Submenu • DELAY—Shifts the A-scan to the left or right. (Refer to Section 4.4.4) TGMODE Submenu • GAIN—Adjusts the instrument’s gain. B-GATE Submenu —This menu adjusts the (Refer to Section 4.4.2) •...
  • Page 39 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-3—This illustration shows the TG Secondary Menu. Page 28 DMS 2 Operating Manual...
  • Page 40 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays • SEND—Determines what happens when the • D-FMT—Changes the way the date is shown TG SECONDARY MENU (SEND key) is pressed. (Refer to Section 3.4.5.) on the display screen and in reports. (Refer SETUP Submenu to Section 3.2.2.) •...
  • Page 41 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-4—This illustration shows the Test Menu. TEST MENU • MIN-CAP—Allows the user to make a series • DELAY—Shifts the A-scan to the left and of thickness measurements, during a right on the display screen.
  • Page 42 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays Notes __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ DMS 2 Operating Manual Page 31...
  • Page 43 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-5—This illustration shows the DR Menu. Page 32 DMS 2 Operating Manual...
  • Page 44 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays DATA RECORDER MENU • TAG—Attaches a “tag” to the parameter • REPORT—Specifies the type of report to be selected in STAT. This allows the item to be generated when the PRINT command is RECORD Submenu located with a SEARCH.
  • Page 45 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-6—This is a typical TG (Thickness Gauge) Mode display screen. Note that in most cases (except in BASIC mode with a DMS 2E or when the B-scan is selected), the A-scan window will actively display an A-scan whenever the probe is coupled.

  • Page 46: Display Screen Features

    2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays Display Screen Features • Alarm Indicators—Alarm indicators are only visible when a specified minimum (<), maximum (>), or The DMS 2’s operating system is designed to be visually percentage change (%), thickness limit is surpassed. easy to interpret.
  • Page 47 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-7—This is a typical DR (Data Recorder) mode display screen. Page 36 DMS 2 Operating Manual...
  • Page 48 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays DR MODE DISPLAY • Selected File Position—The position where the next data • Available Data Files — An alphabetical list of all stored point will be sent when is pressed. This location is data files appears in this window whenever the instrument changed when operating in the File Navigation Mode.
  • Page 49 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-8—This is a typical Test mode display screen. Note that this Test-mode display looks different than the display shown in Figure 2-3. That’s because the display appearance changes when a data file is open, as it is here.
  • Page 50 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays • Selected File Location—The location where the next TEST MODE DISPLAY data point will be sent when the key is pressed. • A-scan—A graphical display of the sound pulses used to This location can be changed in the File Navigation Mode.
  • Page 51 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-9—This is the Master Comment List creation screen. Similar to other comment screens, it allows the user, by selecting a comment line and pressing , to insert customized comments. This Master Comment List is then used to build Active Comment Lists for each data file.
  • Page 52 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-10—This is the Virtual Keyboard display screen. The Keyboard is used to input comments, file names, and other alphanumeric inputs. It’s accessed by pressing DMS 2 Operating Manual Page 41...
  • Page 53 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-11—The File Creation Screens and Menu systems are shown here. Page 42 DMS 2 Operating Manual...

  • Page 54: Keypad Features

    2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays • • • • • FILE CREATION Screen 1 CREATE FILE—Finishes file creation process. (Refer to Section 3.4.3.) • TYPE—Scrolls through a list of file types. (Refer to Section 3.4.3.) Keypad Features •...
  • Page 55 2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays FIGURE 2-12—Some of the keypad functions are shown here. Page 44 DMS 2 Operating Manual...

  • Page 56: Setting Up The Dms 2

    3. Setting Up the DMS 2 3. Setting Up the DMS 2 This chapter will prepare you to begin using the measure- This chapter does not assume that your instrument has ment and data management features of the DMS 2. already been configured according to the Ten Easy Steps outlined in Section 1.2.

  • Page 57: Initial Instrument Setup

    3. Setting Up the DMS 2 FIGURE 3-1—Insert batteries as shown here. batteries are too weak for reliable operation. Settings are Remaining battery life is visually displayed by the icon. saved and restored when the DMS 2 is turned on again. The location of this icon is shown in Figure 2-8.
  • Page 58 3. Setting Up the DMS 2 FIGURE 3-2—Insert probe cable connectors into the top of the DMS2 as shown here. you should select a suitable probe and connect it to the restores them when it’s turned on, you won’t have to repeat probe connectors on the top of the DMS 2 as shown in these adjustments unless a change is required.

  • Page 59: Display Adjustment

    3. Setting Up the DMS 2 3.2.1 Display Adjustment Step 2: Press below the selection titled UPDATE. You’ll Use the procedures in this section to adjust display visibility and other parameters. The adjustments will require access note that the value can be set to 4, 8, 12, or 16 Hz. to the DISP Submenu, which is accessed from the TG Secondary Menu (shown in Figure 3-3).
  • Page 60 3. Setting Up the DMS 2 FIGURE 3-3—The TG Secondary Menu allows the user to adjust most of the instrument’s display and operational features. This menu controls the less frequently adjusted features. DMS 2 Operating Manual Page 49...

  • Page 61: Global Settings

    3. Setting Up the DMS 2 Step 3: Each grid type is shown in the display screen’s A- • OFF—Backlight remains off. • AUTO—Backlight illuminates when the probe is coupled scan window as that type is selected with then automatically turns off five seconds after uncoupling. Step 3: The backlight mode will be set to the choice last dis- Step 4: The A-scan grid style will be the choice last dis- played.
  • Page 62 3. Setting Up the DMS 2 Step 3: The date format will be set to the choice last displayed. Step 2: Press below the selection titled LANG. You’ll Setting the Date (GLOBAL-DATE) note that the options available are English, German, French, Step 1: Activate the GLOBAL Submenu (if it’s not already Spanish, Italian, Portuguese, Norwegian, Swedish, Finnish, Dutch, and Russian.

  • Page 63: Oper (Operation) Settings

    3. Setting Up the DMS 2 Step 2: Press below the selection titled T-FMT. You’ll Step 3: To change the current time, press below the note that the following format options are available: displayed time until the correct time is displayed. •...
  • Page 64 3. Setting Up the DMS 2 Screen Setup for Left-Handed and Right-Handed Users Step 1: Activate the OPER Submenu (if it’s not already (OPER-HAND) activated) by selecting it with so that it’s high- Step 1: Activate the OPER Submenu (if it’s not already lighted.
  • Page 65 3. Setting Up the DMS 2 • INCH—Default setting which displays values in inches Step 2: Press below the selection titled PWRDWN. • METRIC—displays values in millimeters Step 3: The measurement units will be the setting last You’ll note that the amount of time that the instrument will displayed.

  • Page 66: Thickness Gauging Setup

    3. Setting Up the DMS 2 highlighted (see Figure 3-3). Four selections (five in a DMS 2E) will appear across the bottom of the display screen. Step 2: Press below the selection titled RESOL. You’ll note that several options are available. Step 2: Press below the selection titled .
  • Page 67 3. Setting Up the DMS 2 thickness, what type of probe is connected to the instru- • From the Test Menu, press ment, and how the instrument/probe combination is cali- brated to deliver accurate readings. The adjustments will • From the Data Recorder or File Navigation modes, press require access to the TGMODE submenu.
  • Page 68 3. Setting Up the DMS 2 FIGURE 3-4—The TG Primary Menu allows the user to adjust most of the DMS 2’s measurement- related features, including specifying probe and measurement mode types. DMS 2 Operating Manual Page 57...
  • Page 69 3. Setting Up the DMS 2 • S-PEAK—Used with a single-element probe to test thick- ness in COATED materials, especially those with Step 4: Press below the selection titled PROBE. You’ll smooth, parallel surfaces. (no manual gain adjustment available) note a list of probes that can be used with the DMS 2. •...
  • Page 70 3. Setting Up the DMS 2 FIGURE 3-5—Each of the seven different measurement modes determines thickness in a slightly different way as shown on this A-scan. specifying probe and measurement mode types. DMS 2 Operating Manual Page 59...
  • Page 71 A multi-echo mode (D-MULTI, S-PEAK, or S-FLANK) is best ties, and probes make the DMS 2 useful for numerous other suited for measuring thicknesses through protective coatings thickness gauging applications on a variety of materials. GE or paint layers. Inspection Technologies’ field representatives are trained and...
  • Page 72 3. Setting Up the DMS 2 Step 3: Be sure that you’ve already specified the Probe Type Step 2: Activate the TGMODE submenu (if it’s not already (Section 3.3.1) or have installed a DIALOG Intelligent Probe. activated), by selecting it with so that it’s highlighted.

  • Page 73: Alarm Settings

    3. Setting Up the DMS 2 Step 6: ZERO will be set to the choice last displayed. 3.3.2 ALARM Settings Step 7: Probe zeroing procedures are explained in Section Use the procedures described below to adjust the 3.3.3. instrument’s minimum and maximum thickness alarm values and indications.
  • Page 74 3. Setting Up the DMS 2 highlighted. Five selections will appear across the bottom of the display screen. Step 2: Press below the selection titled MAX. Set the thickness value above which the maximum thickness alarm Step 2: Press below the selection titled MIN. Set the will signal.
  • Page 75 3. Setting Up the DMS 2 • ON—Causes the lights (LEDs) on the front of the instru- • ON—Causes the lights (LEDs) on the front of the instru- ment to illuminate and the audible horn to sound (if acti- ment to illuminate and the audible horn to sound (if acti- vated) when a thickness is measured that’s less than the vated) when a thickness is measured that’s greater than MIN thickness setting.

  • Page 76: Probe Zeroing Procedures

    3. Setting Up the DMS 2 • ON—Sounds an audible warning when the MAX or MIN element probe, and also the wear plate thickness of single- thickness alarms are triggered. element contact probes. • OFF—Does not sound an audible alarm when the MAX If USER is selected, the user selects the time to perform a or MIN thickness alarms are triggered.

  • Page 77: Calibration Procedures

    3. Setting Up the DMS 2 Performing the USER Zeroing Procedure NOTE: Some probes require the face to be in air to zero. If the probe is coupled and the DMS 2 is turned on, the unit will Step 1: The USER procedure must first be selected in the attempt to zero the probe (indicated by the PO icon being TGMODE submenu (Section 3.3.1).
  • Page 78 3. Setting Up the DMS 2 2. 2-PT (2-point)—Available for DUAL and SIP measure- of the same material, velocity of sound, and curvature as the ment modes. material to be measured. For best results, the thicker standard should be equal to, or slightly greater than the •...
  • Page 79 3. Setting Up the DMS 2 Step 4: Follow the instructions displayed, and press Press below to change the displayed thickness reading until it matches the known thickness. Note that this below the to change the displayed thickness reading is accomplished without coupling the probe. until it matches the known thickness.

  • Page 80: Locking The Instrument Settings

    3. Setting Up the DMS 2 Calibrating to a Known Velocity operator from changing the A-scan, gate, probe setting, calibration, zeroing, and other settings. While locked, the If you know the precise velocity of sound in the material to be instrument’s data recorder and measurement capabilities are measured, the DMS 2 can be calibrated to the known fully functional.
  • Page 81 NOTE: This information is provided for the convenience of the user. GE Inspection Technologies assumes no responsibility for inaccuracies. Actual velocities depend on exact composition, temperature, and processing of each material.

  • Page 82: Storing Data In The Data Recorder

    3. Setting Up the DMS 2 Storing Data in the Data Recorder • Create a Master Comment List ( The numerical and graphical thickness measurement data • Use the Virtual Keyboard to create customized comments collected with the DMS 2 instrument can be •...
  • Page 83 3. Setting Up the DMS 2 • GRID File Type—Often used for storage tank, large- Data Recorder File Contents diameter fluid conductors, and similar applications. The The DMS 2 is capable of storing the measurement data in its user can build a file with up to 702 rows and 702 on-board Data Recorder.
  • Page 84 3. Setting Up the DMS 2 FIGURE 3-6—This is a typical Data Recorder mode file display. Note the specific features of this file, which happens to be a BOILER type, named TRBOIL1. DMS 2 Operating Manual Page 73...

  • Page 85: Building A Master Comment List

    3. Setting Up the DMS 2 • COMMENTS—Observations (such as “Heavy Pitting”) attached to specific data points by the operator. • FLAGS – Automatically attached to individual data points whenever a measurement limit (such as T-MAX) is violated. • A-SCANS—Graphical displays of the waveform used to produce the thickness measurement stored as a specific data point.

  • Page 86: Creating A Data File

    3. Setting Up the DMS 2 the letter to the Master Commnent Line. When you’ve Step 2: Press under the SELECT selection. Note that finished creating the comment, press to return to the Master Comment List. Note that you’re newly-created as the button is pressed, different comment lines are comment now appears on one of the lines in the Master highlighted.
  • Page 87 3. Setting Up the DMS 2 FIGURE 3-8—The Virtual Keyboard allows you to create comments and other text-based tags. It’s accessed by pressing Page 76 DMS 2 Operating Manual...
  • Page 88 3. Setting Up the DMS 2 Notes _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ DMS 2 Operating Manual Page 77...
  • Page 89 3. Setting Up the DMS 2 Use the following procedures to create a new file. They NOTE: You may begin the File Creation Function with an contain procedures for creating a new file by copying existing file already active. If you do, one of the file-type parameters from an existing file.
  • Page 90 3. Setting Up the DMS 2 FIGURE 3-9—Pressing opens the File Creation display. Here the user completes the first step in the file-creation process by specifying the file type. In this case, the GRID file type has been indicated. Then, various file features called ITEMS are defined.
  • Page 91 3. Setting Up the DMS 2 Step 6: When the VALUE of all ITEMS have been specified, • STARTING ROW—Set the letter or number to identify the first row. press under the selection NEXT to complete the file • ENDING ROW—Set the letter or number to identify the last row.
  • Page 92 3. Setting Up the DMS 2 FIGURE 3-10—This is the second step in the file creation process. It allows the user to insert various descriptions into the file header (the probe serial number, for instance) as well as specify the maximum and minimum acceptable material thicknesses.

  • Page 93: Editing The Names Of Elevations, Locations, And Other File Content Labels

    3. Setting Up the DMS 2 Step 9: Just as you selected ITEMS and specified VALUES • Set the NUMBER TO INCREMENT which will determine in Steps 5 and 6 above, you should now input all desired how each elevation, after the first, is numbered. descriptions on the display screen shown in Figure 3-10.
  • Page 94 3. Setting Up the DMS 2 FIGURE 3-11—An Auto-Labeler screen is shown here. DMS 2 Operating Manual Page 83...

  • Page 95: Storing A-Scans With Thickness Measurements

    3. Setting Up the DMS 2 Step 6: Then use the AT selection to move to the desired Step 2: Make sure the data file that you wish to edit is active, and the specific point (or a point within the elevation or location you wish to rename) is selected.

  • Page 96: Additional Information On Working With Data Files

    3. Setting Up the DMS 2 the SEND FUNCTION feature located in the RECORD Submenu. (Note that there are additional send functions, Step 6: Press below the selection titled VALUE. Two related to communication with external-devices, which can be modified as explained in Chapter 6.) options are available: THICKNESS ONLY –...
  • Page 97 3. Setting Up the DMS 2 — e l i y l l r i f t n i . e l t n i . e l e l i r i v e l i e l i i l l i t i n .
  • Page 98 3. Setting Up the DMS 2 — e l i y l l y f i c i t r i f e l i e l i e l i e l i t n i e l i .
  • Page 99 3. Setting Up the DMS 2 — e l i y l l y f i r i f t n i . e l t n i . e l e l i r i v e l i e l i i l l i t i n...
  • Page 100 3. Setting Up the DMS 2 Notes _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ DMS 2 Operating Manual Page 89...

  • Page 101: Measuring Thickness

    4. Measuring Thickness 4. Measuring Thickness 4. Measuring Thickness 4. Appending and inserting additional data into and This chapter explains what you’ll need to know to measure deleting spaces from existing files (Section 4.3.3) thickness and record data with the DMS 2. The instructions in this chapter assume that your instrument has already 5.

  • Page 102: Working In The Test Mode

    4. Measuring Thickness Step 3: The instrument’s display screen should look some- Working in the Test Mode thing like the screen that’s shown in Figure 4-1A, provided If you’ve been reading this manual in sequential order, you you’ve already opened a data file. If you haven’t opened a may have noticed that most of the material up to this point data file, your display will look like the one in Figure 4-1B.
  • Page 103 4. Measuring Thickness important visual feature to watch for. Any time that the width of the A-gate and B-gate, and other features of the A- displayed thickness reading isn’t responding as expected, scan display. look first to this icon to be certain that the probe is properly Step 9: Locate the Minimum-Capture Time-out icon coupled to the material being tested.
  • Page 104 4. Measuring Thickness FIGURE 4-1—When a probe is coupled (applied) to the material being measured and a thickness measurement is taken, the DMS 2’s display screen will be in the Test Mode and will look like this. Note that the Probe Coupled icon and the “solid” thickness reading indicates that the probe is properly coupled to the material being tested.

  • Page 105: Freezing The A-Scan Display (Test-Freeze)

    4. Measuring Thickness FIGURE 4-2—This is the Test Menu. It will appear across the bottom of the display screen whenever the instrument is in the Test mode. 4.1.2 Freezing the A-scan Display (TEST-FREEZE) Step 2: Press below the selection titled FREEZE. You’ll Freezing the A-scan display allows the user to more closely evaluate the measurement and/or adjust the A-scan range note that the following choices are available:...

  • Page 106: Using The Minimum-Capture Mode For Enhanced Measurement

    4. Measuring Thickness Step 3: The FREEZE feature is often beneficial in high temperature, Minimum-Capture, and other special applica- tions. Note that the frozen A-scan and thickness reading may be sent to a printer or stored in a data file. Step 4: Once below FREEZE is pressed and ON is selected, note the...
  • Page 107 4. Measuring Thickness After the probe is uncoupled, the instrument will enter a time- out period and the last reading (not necessarily the mini- Step 2: Press below the selection titled MINCAP. You’ll mum) is held in the display. During the time-out period note that the following choices are available: (which can be varied between 0 and 15 seconds), if the probe is recoupled, the MINCAP session continues.

  • Page 108: Measuring And Recording Thickness

    4. Measuring Thickness Setting the Minimum-Capture Mode (and B-scan) Time- Measuring and Recording Thickness Out Duration (SETUP–T-OUT) This part of Chapter 4 explains how to measure and record Step 1: If necessary, activate the TG Primary Menu (TG thicknesses. Most users will wish to store thickness mea- mode) by pressing BTG.

  • Page 109: Activating The Test Mode And Storing Measurements

    4. Measuring Thickness NOTE: Doubling is a condition that can occur when measur- Step 3: Press below the selection titled FILE. Then, ing thicknesses below the intended thickness range of a probe (or near the minimum thickness limit of a worn probe). continue to scroll through the list of stored data files until the See the IMPORTANT NOTES at the beginning of this manual desired file is highlighted.
  • Page 110 4. Measuring Thickness FIGURE 4-4—The DR Master Menu contains many submenus that include the File selection. DMS 2 Operating Manual Page 99...
  • Page 111 4. Measuring Thickness Step 6: The SEND selection (located in the IO/CFG readings to the data file. Note that if you wish to indicate Submenu of the TG Secondary Menu) must be set to that a location wasn’t physically accessible (and therefore DATAREC.

  • Page 112: Closing A Data File

    4. Measuring Thickness Step 1: Press to activate the FILE NAVIGATION mode. Step 2 : Using the center up/down arrows, or left right arrow keys, position the bold cell over the thickness reading to be cleared out. Step 3: Press to return to the TEST MENU.

  • Page 113: Data Enhancement Features

    4. Measuring Thickness Step 2: Set the value of the OVR selection to ON. Step 3: Press below the selection titled FILE. In the File- Step 3: Activate the FILE NAVIGATION mode and select the first thickness value you wish to overwrite. listing box at the top of the display you’ll note the file option NO ACTIVE DATA FILE.
  • Page 114 4. Measuring Thickness assign an Active Comment List to a data file and to attach Step 4: If you wish to modify a comment line, select the one or more comments to a specific data point. Note that the comment line to be modified so that it’s highlighted. (Note comment(s) selected will be attached to whatever data point that comments with a closed “lock”...
  • Page 115 4. Measuring Thickness FIGURE 4-6—This is how an Active Comment List will look. The DMS 2 holds up to sixteen of your own comments. Each comment can be up to sixteen characters long. The comments listed here are only samples. You’re free to insert any comments you choose.

  • Page 116: Recording Detailed Measurements With A Micro-Grid

    4. Measuring Thickness Creating, Reopening, and Navigating Within a Micro-Grid Important Note: Pressing within five seconds of Step 1: In Test mode, with a data file active and the desired storing a data point will cause the just-stored data point to data point (which must already contain a thickness measure- become active again and will open the Active Comment List.
  • Page 117 4. Measuring Thickness Step 5: You may now navigate through the micro grid, just as you would through any data file, storing thickness mea- surements in each grid location. Step 6: To leave the Micro-Grid, quickly press . This will return the instrument to the test mode, with the next data file position (not Micro-Grid position) active.

  • Page 118: Editing Existing Files With The Append, Insert, And Delete Functions

    4. Measuring Thickness Step 3: Activate the EDIT Submenu (located in the DR Step 11: To exit the re-accessed Micro-Grid, press Menu) by selecting it with so that it’s highlighted. Test Mode or in DR Mode with the Record Submenu se- Selections will appear across the bottom of the display lected.
  • Page 119 4. Measuring Thickness Step 8: Press below the selection AT to indicate the position in the data file (in this case, the row) where you want to insert additional items. Step 9: Press below the selection INSERT, and hold the button to complete the insertion process.
  • Page 120 4. Measuring Thickness Step 3: Activate the EDIT Submenu (located in the DR Menu) by selecting it with so that it’s highlighted. Step 8: Press and hold below the APPEND selection until the process is complete. Step 9: The number of items you specify will be automati- Step 4: Press below the selection titled ITEM.

  • Page 121: Changing The Digital Thickness Display To Indicate An Uncoupled Probe (I/O - Last R)

    4. Measuring Thickness Step 5: Select the item you wish to delete. For instance, if Step 10: The number of items you specify will be automati- you wish to delete one or more rows, select Row . Remem- cally removed from the active data file. ber, all locations within the items (row) selected for deletion 4.3.4 Changing the Digital Thickness Display to...

  • Page 122: Adjusting The A-Scan Display

    4. Measuring Thickness calibration and probe-zeroing processes. (Refer to Sections 3.3.3 and 3.3.4.) Most users will find that the A-scan display Step 4: Press below the selection titled LAST R. You’ll won’t need to be adjusted in most applications. In fact, it’s typical that the operator will lock the instrument following note that the following two options are available: initial calibration and A-scan adjustment.
  • Page 123 4. Measuring Thickness adjustments won’t affect thickness readings. The following is • The orientation of the A-scan image can be rectified to a list of the A-scan display options, the sections where they show all or a portion of the A-scan signal (Section 4.4.6) can be found in this manual, and notes on how they may Enhancing the A-SCAN Image (DISP-A-SCAN) affect thickness readings.
  • Page 124 4. Measuring Thickness FIGURE 4-9—To improve visibility, the A-scan may be displayed as a SOLID or HOLLOW image. DMS 2 Operating Manual Page 113...

  • Page 125: Adjusting The Instrument's Gain

    4. Measuring Thickness • HOLLOW—The A-scan is displayed as a line. • SOLID—The A-scan’s outer shape remains the same. The image will be filled in with solid shading (default). Step 5: The A-scan appearance will be set to the option last chosen.

  • Page 126: Adjusting Range

    4. Measuring Thickness Step 2: Activate any submenu that contains the GAIN selection controls the width of the display screen. Note that the default RANGE is determined by the calibration proce- selection by selecting it with so that it’s high- dure.
  • Page 127 4. Measuring Thickness FIGURE 4-11—The effect of increasing and decreasing the RANGE of an A-scan is shown here. Page 116 DMS 2 Operating Manual...

  • Page 128: Positioning The A-Scan With Delay

    4. Measuring Thickness 4.4.4 Positioning the A-scan with DELAY The DELAY feature adjusts the left-to-right position of the echo signals (returning sound pulses) in the A-scan display. This adjustment is sometimes used to account for the effects of signals (noise) in the initial sound pulse. This isn’t an often-encountered problem.

  • Page 129: Purpose Of The A-Gate And B-Gate

    4. Measuring Thickness 4.4.5 Purpose of the A-gate and B-gate Step 3: The instrument’s delay will be set to the value last displayed and won’t change until it’s manually adjusted. As explained earlier in Section 4.4, the A-scan represents the transmitted sound pulse. The pulse is transmitted If working in the DUAL measurement mode, DELAY can only through the material being tested, where it reflects off the be adjusted from the TG Mode:...
  • Page 130 4. Measuring Thickness FIGURE 4-13—In the DUAL and SIP measurement modes, material thickness is calculated based on the amount of time it takes for the first returning sound pulse (echo) to cross the A-gate. When the DSM 2 is operating in these measurement modes, the B-gate won’t be visible.
  • Page 131 4. Measuring Thickness Setting the Position and Size of the A-gate and B-gate Step 3: Press below the selection titled A-STRT. You’ll As discussed earlier, the A-gate and B-gate are positioned based on information collected during the calibration process. note that the starting point of the A-gate shown on the A-scan Under some circumstances, the position or size of one or both display screen will move to the left and right (Figure 4-14).
  • Page 132 4. Measuring Thickness FIGURE 4-14—The width and starting position of the A-gate and B-gate can be adjusted. Adjusting the height of either gate changes the point at which it will be crossed by the A-scan. DMS 2 Operating Manual Page 121...
  • Page 133 4. Measuring Thickness Step 3: Press below the selection titled A-WDTH. You’ll Step 3: Press below the selection titled A-THR. You’ll note that the width of the A-gate shown on the A-scan display note that the height of the A-gate shown on the A-scan screen will increase or decrease (Figure 4-14).
  • Page 134 4. Measuring Thickness Step 3: Press Step 3: Press below the selection titled B-WDTH. You’ll below the selection titled B-STRT. You’ll note that the width of the B-gate shown on the A-scan note that the starting point of the B-gate shown on the A-scan display screen will increase or decrease (Figure 4-14).

  • Page 135: Choosing The Rectification Method

    4. Measuring Thickness This is commonly called an echo . The series of echoes Step 2: Activate the B-gate Submenu (located in the TG looks like the radio frequency (RF) signal that’s shown in Primary Menu) by selecting it with so that it’s Figure 4-15.
  • Page 136 4. Measuring Thickness FIGURE 4-15—Rectification controls how much of the returned sound pulse appears on the display screen. Note that when RF rectification is selected, the A-gate and B-gate can be positioned above or below the axis. DMS 2 Operating Manual Page 125...

  • Page 137: Working With B-Scan Thickness Mapping

    4. Measuring Thickness Use the following procedure to select a rectification option. • POS—Default for most single-element probes. The Negative rectification is the default option and will satisfy most icon will appear at the top of the display screen. applications and operators. •...
  • Page 138 4. Measuring Thickness Turning on the B-scan Feature and Storing the Results Step 5: When the B-scan is complete, it may be cleared (as (B-SCAN) described later in this section) or stored in the Active data file position. To store the B-scan, press Use the following procedure to switch to B-scan Mode.
  • Page 139 4. Measuring Thickness FIGURE 4-16—Shown here is a typical B-scan display. This feature is only accessible in the SIP, DUAL, T-COAT, and AUTO-V measurement modes. Page 128 DMS 2 Operating Manual...
  • Page 140 4. Measuring Thickness Step 4: Once the B-scan mode is selected and the probe is Step 2: Activate the B-SCAN Submenu by selecting it with coupled, the B-scan display screen will begin to “draw in” the so that it’s highlighted. Five selections will appear thickness profile of the material being tested.

  • Page 141: Saving, Recalling, Clearing Tg Setups (Parameter Sets)

    4. Measuring Thickness Step 1: If necessary, activate the TG Primary Menu (TG Saving, Recalling, Clearing TG Setups (Parameter Sets) mode) by pressing The PARAM Submenu allows users to select, save and re-load Step 2: Activate the B-SCAN Submenu by selecting it with up to twenty thickness gage parameter sets with corresponding A-scan images.
  • Page 142 4. Measuring Thickness Saving a Parameter Set After the operating parameters have been adjusted and you’re i l a ready to save this particular set of parameters, you must first . n i access the PARAM Submenu. Up to twenty parameter sets .
  • Page 143 4. Measuring Thickness Step 1: Activate the PARAM Submenu (located in the TG Step 3: Press below the desired column to move the Primary Menu) by selecting it with so that it’s highlighted. Five selections will appear across the bottom of the cursor from one character to another on the VIRTUAL KEY- display screen.
  • Page 144 4. Measuring Thickness Deleting a Parameter Set Step 3: When the desired parameter set is displayed under When you wish to remove or modify a saved a parameter set, you must use the DELETE P-SET selection in the the P-SET selection, press and hold below the selection PARAM Submenu.
  • Page 145 4. Measuring Thickness Notes _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Page 134 DMS 2 Operating Manual...

  • Page 146: Working With Stored Data

    5. Working with Stored Data 5. Working with Stored Data This chapter will prepare you to use all of the data manage- This chapter of the manual explains how to modify and analyze ment features of the DMS 2. existing data files. If you have not yet created a data file, you should do so now by referring to Section 3.4.
  • Page 147 5. Working with Stored Data Activating the DR Mode Understanding Menus and Displays in the DR Mode The DR Operating Mode is accessed from the TG Mode and The DR Primary Menu contains five sub-menus. Figure 5-2 shows the contents of these submenus and how to select from the Test Mode by pressing .
  • Page 148 5. Working with Stored Data FIGURE 5-1—This is a typical Data Recorder (DR) Mode display screen when a data file is active and the STATS Submenu is selected. DMS 2 Operating Manual Page 137...
  • Page 149 5. Working with Stored Data FIGURE 5-2—The Data Recorder Primary Menu contains five sub-menus. Each sub-menu contains several selections. Page 138 DMS 2 Operating Manual...
  • Page 150 5. Working with Stored Data HEADER Submenu DATA RECORDER MENU • FILE—Scrolls through a list of all stored data files. Automatically activates files as they are selected. (Refer to Section 5.1.1) RECORD Submenu • ITEM—Scrolls through a list of all items (related to file type and size) •...

  • Page 151: Selecting An Existing Data File

    5. Working with Stored Data 5.1.1 Selecting an Existing Data File Step 4: The active file will be highlighted in the File Selection Window. Use this procedure to select an existing data file. Selecting a file automatically opens it. Note that a file can only be selected 5.1.2 Interpreting the DR Mode / RECORD Submenu from the Data Recorder Menu.
  • Page 152 5. Working with Stored Data FIGURE 5-3—When a BOILER type data file is active and the RECORD Submenu is selected, the data DR display screen will look like this. The portion of the display screen shaded in this figure (it will not be shaded on your instrument) will differ depending on the active data file’s type (see Figure 5-4).
  • Page 153 5. Working with Stored Data FIGURE 5-4—The shaded sections shown in this figure represent typical contents of a display when a file of the identified type is active. One of these sections will take the place of the shaded portion of the display shown in Figure 5-3, when the identified type of data file is active and the RECORD Submenu is selected.

  • Page 154: Closing (De-Selecting) A Data File

    5. Working with Stored Data 5.1.3 Closing (De-selecting) a Data File Step 4: There will be no active file when NO ACTIVE DATA FILE is selected. Use this procedure to close an active data file. Selecting a different file automatically closes the previously active file. Note 5.1.4 Deleting a Data File that a file is automatically opened or closed when selected or...

  • Page 155: Navigating In The Data Recorder Mode

    5. Working with Stored Data DELETE ACTIVE — Deletes only the active data file You’ll also learn how to modify the instrument’s built-in Automatic Navigation and Data-point Advance features. The DELETE ALL — Deletes all data files appearance of the DR display screen can also be modified with the VIEW selection (Section 5.2.6) found in the RECORD Step 5 : A prompt will appear asking you to press and hold submenu.

  • Page 156: Navigating From Point To Point Within A Data File

    5. Working with Stored Data 5.2.2 Navigating from Point to Point Within a Data File At any time, one or more presses of will switch the display to the DR Navigation (NAV) Mode, with the cursor in the window as shown in Figure 5-5. This allows the user to navigate throughout the active data file to select any point (whether it contains a thickness measurement or is empty).

  • Page 157: Searching For Specific (Tagged) Attributes Within A Data File

    5. Working with Stored Data Column, Point, or Location name can be specified by name, Step 5 : Refer to Figure 5-6 and note that the specified file causing the active file to immediately shift to that portion of location is “selected” in the File Navigation Window. It is now the data file.
  • Page 158 5. Working with Stored Data FIGURE 5-6—Any data point can be directly accessed from the RECORD Submenu. DMS 2 Operating Manual Page 147...
  • Page 159 5. Working with Stored Data Step 2: Activate the STATS Submenu by selecting it with NOTE: Multiple attributes can be tagged as part of a given search. Each attribute must be first identified with the STAT so that it’s highlighted. selection, then tagged with the TAG selection (as described Step 3: Access the desired data file, if not already active, by above).
  • Page 160 5. Working with Stored Data FIGURE 5-7—Data points with specific attributes can be located by using the SEARCH command. One or more attributes are tagged (marked with a ✔ ✔ ✔ ✔ ✔ ) and the search is launched. After the search is conducted, only thickness readings with the specified (tagged) attribute will be accessible through the File NAV Window, until QUIT SEARCH is selected.

  • Page 161: Automatic Advance Features

    5. Working with Stored Data Working with the Results of a Search The AUTO-ADVANCE feature can be modified to suit specific measurement applications. For instance, when recording Thickness measurements identified in the search can then measurements into a large GRID type file, the physical mea- be accessed just as thickness measurements in any data surement site may dictate that it’s best to advance by column.
  • Page 162 5. Working with Stored Data FIGURE 5-8—Adjust the instrument’s Auto-Advance feature from the RECORD Submenu. DMS 2 Operating Manual Page 151...
  • Page 163 5. Working with Stored Data Step 2: Make sure that the data file you wish to work with is Step 8: Set the first advance value to the file component you active. wish to auto-advance through first. Step 3: Activate the RECORD Submenu by selecting it with so that it’s highlighted.
  • Page 164 5. Working with Stored Data Turning the Auto-Advance Feature Off or Adjusting Advance Time Step 4: Press below the selection titled ITEM. You’ll At times it may be beneficial to turn the Auto-Advance note that several file characteristics are listed including feature off.

  • Page 165: Adjusting The Data Recorder (Nav Window) Display

    5. Working with Stored Data 5.2.6 Adjusting the Data Recorder (NAV Window) SPREAD – Displays 12 data points and the names of Rows, Display Columns, Elevations, or Locations LIST – Displays only 4 data points but includes a summary Step 1: Open the Data Recorder Menu by pushing of the COMMENT letters and FLAGS attached to each data point.

  • Page 166: Storing And Recalling A-Scans

    5. Working with Stored Data Step 5: The DR display option will be set to the last option Step 3: Activate the RECORD Submenu by selecting it with selected. so that it’s highlighted. Selections will appear NOTE: Regardless of the instrument settings, all micro- across the bottom of the display screen including ITEM and grids will be displayed in SPREAD VIEW.

  • Page 167: Modifying A Data File's Organization And Contents

    5. Working with Stored Data for two (2) seconds. Sends only a thickness reading when A flag will appear in the NAV Window if operating in LIST VIEW. is briefly pressed and released. THICK + A-SCAN – sends thickness value and A-Scan with Step 3: Press below the VALUE selection, this will key presses.

  • Page 168: Editing Existing Files With The Append, Insert, And Delete Functions

    5. Working with Stored Data Inserting Additional Capacity into a Data File • Contents of each file location by altering the action taken when is pressed Step 1: Open the Data Recorder by pushing . Once the • Labels given to the subdivisions with a file – this includes DR Menu (Figure 5-2) is opened, you’ll note five submenus the names given to the Rows, Columns, Points, Locations, listed on the Submenu Bar.
  • Page 169 5. Working with Stored Data Step 6: Press below the selection titled MODE until the word INSERT appears. Step 7: Press below the selection INSERT (near the middle of the submenu list) to indicate how many items (in this case, rows) that you wish to insert into to the data file. Note that no more that 99 items may be added with a single IN- SERT procedure.
  • Page 170 5. Working with Stored Data Adding Additional Capacity onto the End of a Data File (Appending) Step 6: Press below the selection titled MODE until the Step 1: Open the Data Recorder by pushing . Once the word APPEND appears. DR Menu (Figure 5-2) is opened, you’ll note five submenus listed on the Submenu Bar.
  • Page 171 5. Working with Stored Data Step 2: Make sure the data file that you wish to edit is active. (Refer to Section 5.1.1 to open data files.) Step 7: Press below the selection DELETE to indicate Step 3: Activate the EDIT Submenu (located in the DR how many items (in this case, rows) you wish to delete from the Menu) by selecting it with so that it’s highlighted.

  • Page 172: Modifying Data File Content Labels And Notations

    5. Working with Stored Data 5.3.2 Modifying Data File Content Labels and Step 3: Activate the EDIT submenu by selecting it with Notations so that it’s highlighted. Several selections will In this part of the manual, you’ll learn how to modify the appear, including ITEM.
  • Page 173 5. Working with Stored Data that this also causes the specified data point stored in FLOOR1 to become active in the File NAV Window. Step 4: Press below the selection titled ITEM. You’ll Step 7: Press to open the Virtual Keyboard. Use the note that several notation lines are listed including some of the following : Description, Probe, Calibration, Probe, keyboard (as explained in Seciton 3.4.2) to specify a new...

  • Page 174: Changing Thickness Measurement Values From The Dr Mode

    5. Working with Stored Data Step 7: The notation specified (in this case the probe serial number) will be stored as part of the file’s header and will Step 4: Press below the selection titled ITEM. You’ll appear on any reports printed or sent to a PC. (refer to Chap- ter 6 to send a report) note that several file characteristics are listed on the display, including VALUE (Note, this is not the VALUE listed as a...

  • Page 175: Setting Thickness Alarms

    5. Working with Stored Data Setting Thickness Alarms Step 1: Open the Data Recorder by pushing . Once the The DMS 2 contains several thickness limit and alarm DR Menu (Figure 5-2) is opened, you’ll note five submenus features. As described in Section 3.3.2 of this manual, a listed on the Submenu Bar.

  • Page 176: Statistical Evaluation Of Data File Contents

    5. Working with Stored Data • Number of data points at the maximum thickness level Step 6: Press below the VALUE selection until the • Number of thickness points above the max-thickness limit • Number of points with A-scans attached numerical value of T-MIN is set to the desired level.

  • Page 177: Checking The Instrument's Available Memory

    5. Working with Stored Data Step 2: Activate the MEMORY Submenu by selecting it with Step 4: Press below the selection titled STAT. You’ll so that it’s highlighted. on the display screen you will find the following information: note that several file-specific statistics are listed. Continue to scroll through the entire list, some of which is not initially NUM OF FILES –...

  • Page 178: Generating Reports, Printing Data, And Connecting To External Devices

    6. Generating Reports, Printing Data, and Connecting to External Devices 6. Generating Reports, Printing Data, and Connecting to External Devices preset to 9600 BAUD. NO ADJUSTMENT OF THE BAUD 6.1 Interfacing with External Devices RATE SHOULD BE ATTEMPTED. There are two types of The DMS 2 can be configured to communicate with four cable used to connect the DMS 2 to a printer.

  • Page 179: Connecting To A Personal Computer

    6. Generating Reports, Printing Data, and Connecting to External Devices NOTE: Printer Cable Product Code PRTCBL-842 must be used to connect the DMS 2 to a PARALLEL printer. Printer Step 3: Press below the selection titled PRINTR. You’ll Cable Product Code PRTCBL-518 must be used to connect note five options the DMS 2 to a SERIAL printer •...

  • Page 180: Generating Reports

    6. Generating Reports, Printing Data, and Connecting to External Devices Step 2: Activate the TG Secondary Menu by pressing • H-COPY – Prints a hard copy of the display screen (the probe does not need to be coupled) at the same time •...

  • Page 181: Selecting The Report Type

    6. Generating Reports, Printing Data, and Connecting to External Devices 6.3.1 Selecting the Report Type Follow these steps to select one of the report types listed in Table 6-1: i t c Step 1: Open the Data Recorder by pushing .

  • Page 182: Transmitting A Report

    6. Generating Reports, Printing Data, and Connecting to External Devices Step 5: Select the report type you wish to generate by Step 4: If sending an ACTIVE report, make sure the data file you wish to generate the report for is active. Also, remember that selecting ALL will print a full report for all files stored in the pressing below the REPORT selection.

  • Page 183: Specifications

    7. Specifications 7. Specifications 7.1 DMS 2 Specifications Operating Principle: Ultrasonic pulse/echo Measurement Modes: Dual-element, Dual (D-MULTI) & Single-element/Multiple-echo, SIP, B-scan Probe Zero Adjustment: Automatic; Push button, keyed to instrument probe zero block V-Path Correction: Automatic, microprocessor controlled Linearity: Dual: ±.002 inch (±.05 mm) when calibration point <...
  • Page 184 7. Specifications A-scan Rectification: Selectable 1/2 wave negative, 1/2 wave positive, full-wave, RF Display Contrast: Adjustable via keypad in display setup menu Power Supply: 4 each 1.5 V, Duracell Procell, 2.45 Amp hour, AA alkaline (Standard AA Nicad rechargeable batteries can be substituted) Battery Life (operating time): 40 hours operation with backlight off, 4 Hz update, B-scan and MIN CAP off Gain:...
  • Page 185 7. Specifications Data Recording File Structures: Custom Linear, Grid, Boiler, Custom Grid, Custom Point, Linear, 3 or 4 level custom (UltraMATE®) 16 character alphanumeric input Virtual Keyboard alphanumeric input of file names, file descriptions, comments, location/data pt. I.D.’s, etc. Real Time Clock: Month/Day/Year Calendar Hour: Minute 24-hour clock Continuous operation...

  • Page 186: Probe Specifications

    7. Specifications 7.2 Probe Specifications 7.2.1 Dual Element Probes Nominal Contact Measurement Temp. Model Probe Description Frequency Diameter Range (Steel) Range Cable FH2E-D High Sensitivity Fingertip 8 MHz .38" .030" to 2.00" <130°F Potted 9.6 mm .75 to 50 mm <54°C FH2E-D-REM High Sensitivity Fingertip...
  • Page 187 7. Specifications Dual Element Probes (continued) Nominal Contact Measurement Temp. Model Probe Description Frequency Diameter Range (Steel) Range Cable DP-104 High Penetration 1 MHz 1.25" .200" min <130°F KBA-532 31.8 mm 5.0 mm min <54°C DA301 General Purpose 5 MHz .475"...

  • Page 188: Single Element Probes

    7. Specifications 7.2.2 Single Element Probes Nominal Contact Measurement Temp. Model Probe Description Frequency Diameter Range (Steel) Range Cable A-2 DFR High Resolution Delay Line 15.0 MHz .30" Application <130°F C-604 7.6 mm Dependent <54°C Alpha-DFR Delay Line 5.0 MHz .60"...

  • Page 189: Recommended Probes For The D-Multi Mode

    7. Specifications 7.2.3 Recommended probes for the D-Multi Mode Model Designation Nominal Contact Temperature Measuring Range Frequency Diameter Range in Steel HT400A/400 High Temperature 5 MHz .500” <1000°F .100”-2.000” (12.7mm) (<538°C) (2.5-50mm) KBA560-D General Purpose 5 MHz .625” <450°F .100”-2.000” (15.9mm) (<230°C) (2.5-50mm)

  • Page 190: Application Notes

    8. Application Notes and Optional Features 8. Application Notes and Optional Features 8.1.2 Surface Conditions 8.1 General Notes A regular pattern on the surface under test, such as machine The DMS 2 is easy to use and will produce reliable, consis- grooves, can cause a false thickness reading, particularly when tent measurements when used correctly and with an under- using a dual element probe.

  • Page 191: Thickness Measurement On Hot Test Pieces

    8. Application Notes and Optional Features method should be used when calibrating to a known thick- 8.2 Thickness Measurement on Hot Test Pieces ness (Section 3.3.4). When using a flat dual probe, position The DMS 2 can be used to measure the thickness of the crosstalk barrier at a right angle to the long axis of the materials with surface temperatures of up to 1,000 F (538...

  • Page 192: Measurement Through Coatings

    8. Application Notes and Optional Features Do not allow the probe to be coupled for more than 5 sec- Some applications may exceed DMS 2 capabilities. If high onds. If a thickness reading does not appear within 5 temperature measurements are unsatisfactory after several seconds, remove the probe and cool it in air.
  • Page 193 8. Application Notes and Optional Features Using conventional thickness measurement methods, it is To calibrate the DMS 2 for measurement of coated parts, using usually impossible to measure the thickness of a metal part, for modes other than the TopCOAT mode, follow the appropriate example a pipe, that is covered by some type of coating, such procedure in Chapter 3.
  • Page 194 8. Application Notes and Optional Features FIGURE 8-2—Multiple Echo technique requires 2 backwall echoes DMS 2 Operating Manual Page 183...

  • Page 195: Topcoat (Measurement Mode) (Optional)

    8. Application Notes and Optional Features 8.4 TopCOAT (Measurement Mode) (Optional) The TopCOAT thickness measurement technique enhances the ability to measure through coatings. This technology also provides the user with the ability to measure the thickness of most non-coated metals and other ultrasonic measurable materials without a same-material calibration standard.

  • Page 196: Calibrating For T-Coat Measurement Mode

    8. Application Notes and Optional Features Step 2: Be sure that you’ve already specified the 560TC Step 2: Power on the instrument by pressing . The TG probe type then press . This launches the TopCOAT Menu should be open and the TGMODE submenu selected. calibration procedure.

  • Page 197: Topcoat Probe Zeroing Procedure

    8. Application Notes and Optional Features Step 6: When the displayed thickness matches the calibra- For best results, the probe zeroing procedure should be repeated periodically during the measurement session to tion standard’s thickness, press compensate for temperature and probe wear. You can zero often and easily without going through the entire calibration Step 7: The TopCOAT calibration procedure is complete.

  • Page 198: Calibrating Coating-Material Acoustical Velocity

    8. Application Notes and Optional Features 8.4.4 Calibrating Coating-Material Acoustical Velocity Step 2: Press and follow the on-screen procedure first To accurately measure material and coating thickness in coupling to the probe zero block, then the velocity reference T-COAT mode, the acoustic velocity of the coating must be block.

  • Page 199: Identifying The Velocity Reference Block

    8. Application Notes and Optional Features thickness, acoustical velocity, and serial number may have Step 4: Press already been entered into your instrument. To change this information in your instrument, follow this procedure: Step 5: Couple the probe to the coated side of the coated calibration standard.

  • Page 200: Auto-V Measurement Mode

    8. Application Notes and Optional Features Step 4: Press below the SERNUM selection to input your Step 3: Press below the selection titled PROBE. You’ll block’s serial number. This will activate the VIRTUAL KEY- note a list of probes that can be used with the DMS 2. Continue BOARD (see the instructions on the display screen and Chapter pressing until the TopCOAT probe (560TC) is selected.

  • Page 201: Warranty And Worldwide Service

    All repair work will be made FOB Lewistown, Pennsylvania, Manager of Customer Service or at a Factory Trained Service Center as advised by GE GE Inspection Technologies, LP Inspection Technologies, LP., provided the defective unit is...
  • Page 202 +33 4 78 - 47 56 98 Postfach 1363 D – 50330 Hürth Téléphone +49 (0) 22 33 - 601 111 +49 (0) 22 33 - 601 402 GE Aircraft Engine Services Limited 892 Charter Avenue Canley Coventry CV4 8AF/West Midlands Téléphone +44 845-601-5771...

  • Page 203: Appendixv A: Hardware Assembly Instructions

    Appendix B. Choosing the File Type Appendix A: Hardware Assembly Instructions Follow these instructions and Figure A-1 to assemble the DMS 2 straps. 1. With the DMS lying on its face, attach the neck strap clip to a lower attachment point on one side of the instrument. 2.

  • Page 204: Appendix B. Choosing The File Type

    Appendix B. Choosing the File Type Appendix B. Choosing the File Type Structure: SIX DMS 2 FILE STRUCTURES LINEAR • LINEAR • CUSTOM LINEAR • CUSTOM POINT Point1—2—3—4—5—6 through n • GRID Start with ANY number (1 - 99999) - end with ANY number •...
  • Page 205 Appendix B. Choosing the File Type CUSTOM LINEAR EXAMPLE OF A CUSTOM LINEAR FILE Data file format with 2 structure elements (LOCATION and Pipe with 4 test locations POINT) A “200 P 451301” pipe shows corrosion. A measurement of STRUCTURE: remaining wall thickness should be made for 4 locations: “MS 1”...
  • Page 206 Appendix B. Choosing the File Type GRID File Data file format for testing of areas (e.g. tanks, pipes) Example: 5 point/Location Grid Locations are 2D coordinates (as with a chess board) Letters may be used for columns (Numbers will be used for rows). Numbers may be used for columns (Letters will be used for rows).
  • Page 207 Appendix B. Choosing the File Type CUSTOM GRID File Data file format for testing of areas where each location consists of a grid of the same size. Example: TANK BOTTOM BCDEFGHIJKLMNOPQRSTUVWXY Point J18 A CUSTOM GRID file will consist of up to 999 locations where EACH location will be PANEL NW PANEL NE...
  • Page 208 Appendix B. Choosing the File Type GRID FILE FLEXIBILITY • Choice of more than 1 point per 2D-coordinate (default is 1) • Choice between 8 possible directions of movement through file as SEND key is pressed. Progressing horizontally, starting from the left or right, or vertically, starting from the top or the bottom. •...
  • Page 209 Appendix B. Choosing the File Type BOILER File Data file format with 3 structure elements (ELEVATION, TUBE, and POINT); especially for inspecting boilers and other structures with 2 identifying levels. STRUCTURE: BOILER ELEVATION 1 ELEVATION 2 ELEVATION k TUBE 1 TUBE n TUBE 1 TUBE n...
  • Page 210 Appendix B. Choosing the File Type BOILER File continued EXAMPLE OF BOILER FILE Convention: Boiler “Unit 3”, Section “B” with 141 vertical tubes should be examined every meter in the range between 202 m and 208 m. Element Number Descriptor The thickness of each tube has to be checked at 3 points (Left, FILE NAME 1 (per file)
  • Page 211 Appendix B. Choosing the File Type CUSTOM POINT File Data file format with 2 structure elements (LOCATION and POINT); similar to CUSTOM LINEAR file but with alphanumeric descriptors for points STRUCTURE: Loc 1 Loc 2 Loc k Point 1 Point n Point 1 Point n Point 1...
  • Page 212 Appendix B. Choosing the File Type Convention: Element Number Descriptor FILE NAME 1 (per file) 32 alphanumeric characters LOCATION 1 - 999 16 alphanumeric characters POINT 1 - 999 16 alphanumeric characters EXAMPLES OF CUSTOM POINT FILES: File Name: H2SO4 PIPE 15 Location: SECTION 2 SECTION 3...

  • Page 213: Appendix C: Helpful Hints

    Appendix C. Helpful Hints Appendix C: Helpful Hints • Pressing within five seconds of storing a data point will • is a 3-position buffer which cycles through the TG cause the just-stored point to become active and will open Menu, File Navigation Mode, and DR Menu with successive the Active Comment List.
  • Page 214 Appendix C. Helpful Hints • An A-scan can be saved with a parameter set. Before saving a parameter set, freeze the screen to store a sample A-scan. When the P-Set is reloaded, the stored (sample) A-scan will be displayed. Simply select FREEZE OFF to UNFREEZE and return to normal operation.

  • Page 215: Appendix D: Upgrading The Dms 2/Dms 2E Instrument

    Step 3: Select the Download New File button. Information available on the GE Inspection Technologies, web site. www.GEInspectionTechnologies.com The program will connect to the GE Inspection Technologies, FTP site (you may need to be connected to the Internet prior •...
  • Page 216 Appendix D. Upgrading the DMS 2/DMS 2E Instrument • Literature • And much more! To Reset the DMS 2 software : PRESS and HOLD for 3 seconds. DMS 2 Operating Manual Page 205...

  • Page 217: Index

    Index Index A-WDTH ............27, 120 Symbols ABS. GROWTH ............. 164 % GROWTH ............164 ABS. LOSS ............164 % LOSS ............... 164 Active Comment ..........102 /, ................55 ADVANCE BY ............152 ADVANCE DIRECTION ........152 A-Gate Height or Threshold ....... 122 Alarm, Audible ............
  • Page 218 Index A-scans, Attaching to Data Points ..... 155 B-SCAN–T-OUT ........... 129 AUTO REVERSE ..........150 B-STRT ..............122 AUTO-ADVANCE ..........150 B-THR ..............123 Auto-Advance Feature, Turning Off or B-WDTH ............... 123 Adjusting ............153 Backlighting ............50 AUTOLABELER ............82 BACKLITE ..............
  • Page 219 Index Curved Surfaces ..........179 Custom Grid File ............ 87 Calibrating to a Known Velocity ......69 Custom Linear File ..........88 Calibration Procedure ......60, 67, 68 Custom Point File ..........88 Selecting ............60 1-PT ..............67 2-PT ..............68 D-FMT ..............
  • Page 220 Index Deleting Segments of a Data File ...... 109 Devices, External ..........167 Features of the DMS2 ..........19 Display Adjustment ..........48 FILE ................ 33 DISPLAY Submenu ..........29 FILE CREATION ............43 Displayed DATE ............. 29 FILE DELETE ............33 Displayed TIME ............
  • Page 221 Index Grid ................ 48 Grid File ..............87 Keypad ..............43 HAND .............. 29, 53 LANG ............... 29, 50 Hardware Assembly Instructions ....... 192 Language ............... 50 HEADER .............. 162 LAST R ..............110 HEADER Submenu ..........33 LAST Reading ............29 HOLLOW ..............
  • Page 222 Index MEMORY ............. 166 MEMORY Submenu ..........33 OBST ..............100 Micro-Grid ............105 Obstruct .............. 100 MIN ................. 27 OPER (Operation) Settings ........52 MIN-CAP ..............30 OPER Submenu ............. 29 MINALR ............27, 63 Operating Language ..........50 MINCAP ..............
  • Page 223 Index probe Type ............. 56 Reports ............... 169 Reset the DMS 2 software ........205 Dialog ..............56 RESOL ..............54 Specifying ............55 Resolution .............. 54 PWRDWN ............... 53 Right-Handed Users ..........53 RS 232 I/O Port ........... 167 QUIT SEARCH ............
  • Page 224 Index Setting Thickness Alarm ........164 SETUP Submenu ........... 29 T-FMT .............. 29, 51 SIP ................58 TAG ................. 33 SOLID ..............114 Tagging Prior to Searching ........ 146 Specifications ............. 172 TEST MENU ............30 Specifications, DMS 2 ........172 Test Mode, Activating ..........
  • Page 225 Index Time, Setting ............52 VIEW ..............154 TIME-OUT ............... 29 LIST ..............154 Time-Out ..............97 SPREAD ............154 TopCOAT ............58, 184 Virtual Keyboard ........... 76 Unit of Measure ............. 54 Warranty ............. 190 UNITS .............. 29, 54 UPDATE ..............
  • Page 226 The crossed-out wheeled bin symbol invites you to use those systems. If you need more information on the collection, reuse and recycling systems, please contact your local or regional waste administration. Visit www.ge.com/inspectiontechnologies for take-back instructions and more information about this initiative.
  • Page 227 7F Medie Corp Bldg. 8 Coventry CV4 8AF 2-4-14 Kichijoji Honcho, Tel: +44 845 130 3925 Musashino-shi Tokyo 180-0004 France www.ge.com/inspectiontechnologies Tel: +81 442 67 7067 68, Chemin des Ormeaux Limonest 69760 Tel: +33 47 217 9216 ©2007 General Electric Company.

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