Krautkramer Usm 25 Operating Manual
. Sensing & Inspection Technologies Ultrasonic USM Go Operator’s Manual P/N 1259801 Rev. USM Go Ultrasonic Flaw Detector Operator’s Manual P/N 1259801 Rev.
1 July 2009 GESensingInspection.com ©2009 General Electric Company. All rights reserved. Technical content subject to change without notice. no content intended for this page - proceed to next page. Contents Chapter 1.
General Information 1.1 Supplying Power to the Instrument.2 1.2 Powering the Instrument ON and OFF. Contents Chapter 2. Instrument Setup 2.1 Display Screen and Keypad Features.17 2.2 The Menu System.
Contents 2.5 Adjusting the A-Scan.51 2.5.1 Setting the A-Scan Range. Contents 3.3 Displaying Measured Results.
GE Measurement & Control Solutions Ultrasonic P/N 1259801 Rev. Before powering up or operating this instrument. USM Go Operator’s Manual xvii. GE Krautkramer Ultrasonic Flaw Detector- The USM25 is a reliable, easy to use flaw detector that has become a staple in inspection facilities worldwide. KrautkramerUSM25 DAC Lemo Ultrasonic Flaw Detector This is in good physical condition and works fine. MFG: KrautkramerMODEL: USM25 DAC LemoACCESSORY: 1. Sensor M2S 2. Sensor M4S 3. Sensor MW-70-4 4. Sensor MW-60-4 5. Sensor MW-45-4 6. RS232 Cable 7. Battery Charger 8.
75 3.4 Locking the Gain Toggle and the Joystick. Contents 3.13DGS Evaluation Mode.92 3.13.1 Specifying a Probe and Preparing to Record the Reference Echo. Contents 4.2 Working With Data Set Files. 115 4.2.1 Storing a New Data Set File.
Contents 5.3 Creating the Data Recorder File.130 5.4 Viewing the Data Recorder File. Contents B.2 Battery Disposal. 147 B.2.1 What do the Markings Mean?. Preface Safety Information Before powering up or operating this instrument, the safety information in this section should be read carefully. This Operator’s Manual should be stored in a safe place for reference. IMPORTANT: This instrument is to be used only for testing materials in an industrial environment.
Krautkramer Usm 25 Manual
Any use for medical applications or any other purpose is not permitted. Preface Important Ultrasonic Testing Guidelines Please read the information in this section before using your instrument. It is important that you understand and observe this information to avoid any operator errors that might lead to false test results. Such false results could result in personal injuries or property damage. Using Ultrasonic Test Equipment This Operator’s Manual contains essential information on how to operate your test equipment.
Preface Operator Training The operation of an ultrasonic test device requires proper training in ultrasonic testing methods. Proper training comprises adequate knowledge of:. The theory of sound propagation. The effects of sound velocity in the test material. The behavior of the sound waves at interfaces between different materials.
Preface Test Object Material Effects If the material of the test object is not homogeneous, the sound waves may propagate at different velocities in different parts of the test object. An average sound velocity should then be used for the range calibration. This is achieved by using a reference block with a sound velocity equal to the average sound velocity of the test object. Preface Limited Warranty For a period of two (2) years from the date of purchase, we warrant that the instrument will be free of any claim of ownership by third parties, (ii) when new, be free from defects in material and workmanship and perform in accordance with the Product’s specifications under normal use and service for the applicable warranty period following the date of sale. Preface no content intended for this page - proceed to next page USM Go Operator’s Manual. General Information Chapter 1.
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General Information The USM Go is a portable ultrasonic flaw detector. In addition to its light-weight design, the USM Go includes a clean and simple user interface and a large, easy-to-read color WVGA (800x480) display. When operating in Acquire Mode, the instrument provides ultrasonic flaw detection and thickness measurements. General Information 1.1 Supplying Power to the Instrument 1/4-Turn Screw (CW to close, CCW to open) Accessory Mounting Screw Slot Power ON/OFF Receive Probe Connection Pulse/Transmit Probe Connection Battery Charger Connection 1/4-Turn Screw (CW to close, CCW to open) Figure 1: Rear and Side Views of the USM Go Case USM Go Operator’s Manual.
General Information 1.1 Supplying Power to the Instrument (cont.) The USM Go can be powered in either of two ways (see Figure 1 on page 2):. A lithium battery pack that is installed in a compartment on the rear of the case, or. General Information 1.1 Supplying Power to the Instrument (cont.) When the AC adapter is connected to the instrument, the icon in the upper right corner of the display indicates the percentage of full-charge of the battery pack. When removing the battery pack to install a charged spare, the instrument will automatically turn OFF if the AC adapter is not connected to the instrument. General Information 1.3 Using the Keypad (cont.) Battery Indicator Gain Toggle Joystick Function Toggle Display Screen Figure 2: Front Panel of the USM Go USM Go Operator’s Manual. General Information 1.3.1 Instrument Orientation One of the innovative features of the USM Go is the user option to quickly and easily rotate the instrument 180° to accommodate either right-hand or left-hand operation.
During this process, the display image is also rotated to allow proper viewing. Figure 3 below shows the instrument in both orientations. General Information 1.3.2 Keypad Components The USM Go keypad includes the following items (see Figure 2 on page 5):. Center-press joystick ( ): The joystick may be moved either “left or right” or “up or down.” In addition, the center of the joystick may either be “pressed”. General Information 1.3.3 Joystick Functions The effects of the joystick actions described on the previous page are as follows: Joystick Center Press:. When in Acquire Mode, a single press and release ( ) toggles the A-Scan display between standard size and full screen mode.
Krautkramer Usm 25
General Information 1.3.4 Multi-Key Functions Note: All multi-key functions are defined with the instrument in the left-hand orientation (see the left side of Figure 3 on page 6). Power button + Function 2 button + Gain DOWN button Pressing and holding these three buttons simultaneously causes the instrument to initiate a software upgrade. General Information 1.4 Using the Display Typical displays for the USM Go Acquire Mode and Setup Mode menus are illustrated in Figure 4 below. See the following pages for step-by-step instructions on accessing these menus.
Gate Results Gain Window Battery Indicator Menu Title Grid Menu Bar. General Information 1.4.1 Accessing the Acquire Mode Menu To access the Acquire Mode menu, refer to the left side of Figure 4 on page 10 while completing the following steps: Move the joystick left or right ( ) until the desired menu is highlighted on the menu bar. The function bar automatically shows the parameters available in the highlighted menu. General Information 1.4.2 Accessing the Setup Mode Menu To access the Setup Mode menu, refer to the right side of Figure 4 on page 10 while completing the following steps: Press and hold the center of the joystick ( ) to toggle between Acquire Mode and Setup Mode. General Information 1.5 Using the SD Slot, USB Connector & I/O Connector The USM Go uses a standard SD memory card for storing data set files and reports (see “The FILES Menu” on page 114) and for loading an instrument software upgrade (see “Activating Instrument Upgrades”.
General Information 1.5.1 Removing the SD Card To remove the SD card from its slot, proceed as follows: Access the SD card slot by pushing on the cover in the direction of the arrow and lifting the hinged cover. Press down of the SD card with your finger and then remove your finger quickly. General Information 1.5.3 Connecting the USB Port The connector closest to the hinge of the top compartment cover (see Figure 5 on page 13) is a Micro USB port. If you use a standard USB cable to connect the USM Go to a PC (no special drivers are required), the installed SD card will be added to the list of active drives on the PC. General Information 1.5.4 Connecting the I/O Port The connector furthest from the hinge of the top compartment cover (see Figure 5 on page 13) is an I/O port.
This port serves a dual role:. Serial port pins - these are used strictly for factory service diagnostics.
Instrument Setup Chapter 2. Instrument Setup 2.1 Display Screen and Keypad Features The USM Go user interface has been designed for clarity and ease of use. Figure 6 below show the complete set of icons that may appear in the icon area of the screen, and Figure 7 on page 18 shows the major components of the display and the keypad. Instrument Setup 2.1 Display Screen Features (cont.) Reading 4 Gain Level Reading 3 Gain Toggle Reading 1 Reading 2 Battery Level Icon Area Large Reading Joystick Reading 6 Reading 5 Function 1 Function 2 Function Toggle ACQUIRE Menu Bar Figure 7: Display Screen Features USM Go Operator’s Manual. Instrument Setup 2.2 The Menu System The USM Go menu system, as shown in Figure 8 on page 20, allows the operator to select and adjust various instrument features and settings. It includes:.
Acquire Menu: Consists of several submenus used to calibrate the instrument prior to a test, configure the instrument during a test, select the pulser and receiver characteristics, and configure the gates. Instrument Setup 2.2 The Menu System (cont.) ACQUIRE MENU range voltage frequency gate a start gate a start gate b start SELECTED probe delay width rectify s-ref1 gate a width gate b width EVALUATION velocity damping dual s-ref2 a threshold b threshold MODE. Instrument Setup 2.2 The Menu System (cont.) EVALUATION MODE MENUS AVAILABLE DAC/TCG dB REF AWS D1.1 JISDAC gate A start dgs mode mode A indication gate A start auto80 dgs curve reference B reference auto80 record probe # record C attenuation record. Instrument Setup 2.3 Initial Setup In this section, you’ll learn how to configure the USM Go display and operating features. Follow these procedures to turn the instrument ON and make initial adjustments to the control settings. Because the instrument can be set to save the control settings when it is turned OFF and restore them when it is turned back ON, you won’t have to repeat these adjustments unless a change is required. Instrument Setup 2.3.1 Language, Units of Measurement, Date, and Time (cont.) RANGE FREQUENCY LANGUAGE COLOR PROBE DELAY VOLTAGE RECTIFY UNITS DATE GRID VELOCITY DAMPING DUAL DECIMAL TIME A-SCAN COLOR DISPLAY DELAY PRF MODE REJECT DATE FORMAT ORIENTATION BRIGHTNESS RANGE PULSER RECEIVER.
Instrument Setup 2.3.1a Setting the Acquire Mode Language (SETUP-CONFIG1-LANGUAGE) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the LANGUAGE function, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.1b Setting the Units of Measurement (SETUP-CONFIG1-UNITS) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen.
Use the joystick ( ) to select the function titled UNITS, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.1c Setting the Decimal Convention (SETUP-CONFIG1-DECIMAL) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled DECIMAL, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.1d Setting the Date and Time Formats (SETUP-CONFIG1-DATE FORMAT) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen.
Use the joystick ( ) to select the function titled DATE FORMAT, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.1e Setting the Date (SETUP-CONFIG1-DATE) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled DATE, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.1f Setting the Time (SETUP-CONFIG1-TIME) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled TIME, then press the center of the joystick ( ) to activate the function.
Instrument Setup 2.3.1g Setting Left-Hand or Right-Hand Orientation (SETUP-CONFIG1-ORIENTATION) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled ORIENTATION, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.2 Display Appearance Follow the procedures in this section to adjust the display appearance. The adjustments require access to the CONFIG1 submenu, which is accessed from the SETUP menu (see Figure 10 on page 23). 2.3.2a Setting the Display Color (SETUP-CONFIG1-COLOR) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Instrument Setup 2.3.2b Selecting a Display Grid (SETUP-CONFIG1-GRID) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ).
Several functions are displayed on the screen. Use the joystick ( ) to select the function titled GRID, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.2c Setting the A-Scan Color (SETUP-CONFIG1-ASCAN COLOR) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled ASCAN COLOR, then press the center of the joystick ( ) to activate the function.
Instrument Setup 2.3.2d Setting the Display Brightness (SETUP-CONFIG1-BRIGHTNES) In the SETUP menu, activate the CONFIG1 submenu using the joystick ( ). Several functions are displayed on the screen. Use the joystick ( ) to select the function titled BRIGHTNESS, then press the center of the joystick ( ) to activate the function. Instrument Setup 2.3.3 Defining Function Toggle Actions The user can specify a desired action to occur when either end of the Function Toggle ( ) is pressed or pressed-and-held. The user-specified function action is ignored, however, whenever a parameter is selected and its value is being edited.
In the SETUP menu, activate the CONFIG2 submenu using the joystick ( ). Instrument Setup 2.3.3 Defining Function Toggle Actions (cont.) To change the lower parameter, press the function toggle to scroll through the options. The available options include: NONE – no action is assigned. FREEZE – Freezes the A-Scan and displays the Freeze icon (see Figure 6 on page 17) in the status bar. Instrument Setup 2.4 Installing a Probe Follow the instructions in this section to install a probe on your USM Go.
Receive 2.4.1 Connecting the Probe Probe When connecting a probe to the instrument, the following steps must be taken:. Instrument Setup 2.4.2 Configuring the Instrument Three instrument settings are directly dependent on the type of probe installed. These settings must be adjusted any time a probe of a different type is installed, by following the instructions in the following sections.
2.4.2a Selecting the Probe Type (RECEIVER-DUAL). Chapter 2. Instrument Setup 2.4.2b Specifying the Probe Frequency ( RECEIVER-FREQUENCY) In the ACQUIRE menu, activate the RECEIVER submenu using the joystick ( Use the joystick ( ) to select the function titled FREQUENCY. To change the specified frequency, move the joystick ( ) or press the function toggle. Instrument Setup 2.4.2c Changing Damping Level to modify the Signal to Noise Ratio (PULSER-DAMPING) In the ACQUIRE menu, activate the PULSER submenu using the joystick ( Use the joystick ( ) to select the function titled DAMPING. To change the specified damping level and optimize the A-Scan signal appearance, move the joystick ( ) or press the function toggle.
Instrument Setup 2.4.3 Adjusting the Pulser Repetition Frequency (PRF) The Pulser fires at a frequency which can be set either automatically or manually. To set the PRF mode and frequency level: In the ACQUIRE menu, activate the PULSER submenu using the joystick ( ) to select the function titled PRF MODE.
Instrument Setup 2.4.3 Adjusting the Pulser Repetition Frequency (PRF) (cont.) If PRF MODE is set to AUTO HIGH, AUTO MED or AUTO LOW, the automatically calculated value is displayed in the function box. If you selected the MANUAL option, you may now adjust the PRF value by moving the joystick left or right ( Note: The PRF setting may be limited based on the user-selected pulser voltage setting. Instrument Setup 2.4.5 Selecting the Pulser Type (OPTIONAL) The standard pulser shape is a spike, and there is also an optional square pulser shape available. If the PULSER TYPE option is activated, choose between the spike and square options as follows: In the SETUP menu, activate the CONFIG2 submenu using the joystick ( Use the joystick ( ) to select the function titled PULSER TYPE. Instrument Setup 2.4.6 Selecting the Pulser Width (OPTIONAL) The standard pulser shape is a spike, and there is also an optional square pulser shape available. If the PULSER TYPE option is activated and a SQUARE wave is chosen, the user may specify the time-based width of the pulser.
The pulser width generally varies from 30 to 500 nanoseconds. Instrument Setup 2.4.6 Selecting the Pulser Width (OPTIONAL) (cont.) To set a pulser width: In the ACQUIRE menu, activate the PULSER submenu using the joystick ( ) to select the function titled WIDTH, which is only available if the PULSER TYPE function is set to square. Use the joystick ( Press the function toggle or move the joystick ( ) to set the width of the pulser. Instrument Setup 2.4.7 Using the Phantom PRF Feature When activated, this diagnostic feature varies the PRF to identify any wrap-around signals, which are phantom echoes caused by a PRF setting that is too high. When this feature is activated, the time-based position of the phantom echoes varies while the true echoes remain stationary on the display screen. Instrument Setup 2.4.8 Selecting a Rectification Mode Rectification effects the orientation of the A-scan on the display screen.
The A-scan represents the sound pulse (i.e. Echo) that is returned to the instrument from the material being tested. The series of echoes looks like the Radio Frequency (RF) signal shown in Figure 12 below. Note that the RF signal has both a negative component below the axis and a positive component above the axis.
Instrument Setup 2.4.8 Selecting a Rectification Mode (cont.). Positive Half Rectification means that only the upper (i.e. Positive) half of the RF signal is displayed. Negative Half Rectification means that only the bottom (i.e.
Negative) half of the RF signal is displayed (see Figure 12 on page 47). Note that although only the negative half of the RF signal is displayed, it is shown in the same orientation as a positive component to simplify viewing.
Instrument Setup 2.4.8 Selecting a Rectification Mode (cont.) In the ACQUIRE menu, activate the RECEIVER submenu using the joystick ( Use the joystick ( ) to select the function titled RECTIFY. The following options are available: NEG HALFWAVE - Shows the negative component of the RF signal but displays it in a positive orientation. Instrument Setup 2.4.9 Setting the A-Scan REJECT Level A portion of the A-Scan can be omitted from the display screen, by defining the percentage of the full-screen height you wish to omit. To set a reject percentage: In the ACQUIRE menu, activate the RECEIVER submenu using the joystick ( Use the joystick ( ) to select the function titled REJECT. Instrument Setup 2.5 Adjusting the A-Scan To configure the USM Go A-Scan, follow the instructions in this section.
2.5.1 Setting the A-Scan Range Calibration of the USM Go requires the use of two calibrated standards. These standards must be of different thicknesses, and they must be made of the same material as the test piece. Instrument Setup 2.5.1 Setting the A-Scan Range (cont.) To set the A-Scan range: In the ACQUIRE menu, activate the RANGE submenu using the joystick ( ) to select the function titled RANGE, which has both coarse and fine adjustment modes. Coarse adjustments Use the joystick ( are made with the function toggle, while fine adjustments are made with the joystick. Instrument Setup 2.5.2 Setting the Display Delay The display delay function shifts the displayed A-Scan to the left or the right in the viewing window. To set the display delay: In the ACQUIRE menu, activate the RANGE submenu using the joystick ( ) to select the function titled DISPLAY DELAY. Instrument Setup 2.6 Calibrating the Instrument To calibrate the USM Go, follow the instructions in this section.
2.6.1 Pre-Calibration Check List To improve the accuracy and quality of your calibration, be sure that the following steps have been taken before beginning the calibration:. Instrument Setup 2.6.2 Using AUTOCAL Note: While following the instructions in this section, refer to Figure 14 on page 56. In the ACQUIRE menu, activate the AUTOCAL submenu using the joystick ( ) to select the function titled S-REF1. Then, press the function toggle or move the joystick ( Use the joystick ( ) to change the value to match the thickness of the thinner calibration standard.
Instrument Setup 2.6.2 Using AUTOCAL (cont.) Figure 14: Auto Calibration Procedures USM Go Operator’s Manual. Instrument Setup 2.6.2 Using AUTOCAL (cont.) Note: During the following steps, pressing both buttons on the Gain Toggle simultaneously activates the AUTO80 function. ) to select the function titled RECORD. The value in the function box changes from “OFF” to “S-REF1?”. Use the joystick ( While maintaining the signal in Gate A, move the joystick right or left ( ) to record the reference echo. Instrument Setup 2.6.3 Checking the Calibration Results Following the calibration procedure, the calculated acoustical velocity and probe delay are displayed.
To view these calculated values: In the ACQUIRE menu, activate the RANGE submenu using the joystick ( Press the function toggle or move the joystick ( ) to view the following selections: PROBE DELAY - The adjustment made as a result of the AUTOCAL (zeroing) procedure is shown. Instrument Setup 2.7 Using the Calibration Reminder Alarm The USM Go incorporates a timed alarm feature that causes an icon to appear on user-defined input intervals between 0.5 and 4.0 hours. To use this alarm: In the SETUP menu, activate the CONFIG2 submenu using the joystick ( Use the joystick ( ) to select the function titled CAL REMINDER, then press the center of the joystick ( ) to activate the. Instrument Setup 2.8 Activating Instrument Upgrades When provided, activation codes matched to your USM Go serial number can be input via the CODE submenu, which is located in the CONFIG menu.
This submenu also lists the serial number assigned to your instrument. To input an activation code: In the SETUP menu, activate the CONFIG1 submenu using the joystick ( Use the joystick ( ) to select the function titled CODE, and then press the center of the joystick (. Instrument Setup 2.8 Activating Instrument Upgrades (cont.) After completing the code entry, press the center of the joystick ( ) to deactivate the function. ) to select the function titled CONFIRM, and then press the center of the joystick ( Use the joystick ( ) to acknowledge that the new code is correct. Instrument Setup no content intended for this page - proceed to next page USM Go Operator’s Manual.
Making Measurements Chapter 3. Making Measurements This chapter explains how to configure the USM Go flaw detection and thickness measurement capabilities. It then explains how to make ultrasonic measurements. Configuring Gate A and Gate B Setting the position and the characteristics of Gate A and Gate B is the first step in configuring the instrument for flaw detection or material thickness measurements. Making Measurements 3.1.1 Positioning the Gates Use the procedures in this section to set the vertical and horizontal position of Gate A and Gate B.
Remember that gate position has the following effects on instrument performance:. A-Scan echoes on the right side of the display screen represent features that occur at a greater depth from the test-material surface than those on the left side of the display screen. Making Measurements 3.1.1a Setting the Gate Starting Point (GATE A or GATE B-GATE START) In the ACQUIRE menu, activate the GATE A or GATE B submenu using the joystick ( Use the joystick ( ) to select the GATE A START (or GATE B START) function. To change the gate starting point, either move the joystick ( ) or press the function toggle.
Making Measurements 3.1.1b Adjusting the Gate Width ( GATE A WIDTH or GATE B-GATE WIDTH) In the ACQUIRE menu, activate the GATE A or GATE B submenu using the joystick ( Use the joystick ( ) to select the GATE A WIDTH (or GATE B WIDTH) function. To change the gate width, either move the joystick ( ) or press the function toggle. Making Measurements 3.1.1c Setting the Gate Threshold (Vertical Position) (A THRESHOLD or B THRESHOLD) In the ACQUIRE menu, activate the GATE A or GATE B submenu using the joystick ( Use the joystick ( ) to select the A THRESHOLD (or B THRESHOLD) function.
To change the gate height, either move the joystick ( ) or press the function toggle. Making Measurements 3.1.2 Selecting the TOF-Detection Method A-Scan signals crossing either Gate A or Gate B are evaluated for the purposes of flaw detection and material thickness evaluation. When the signal crosses Gate A or Gate B, either the gate-crossing point (i.e. The flank) of the signal, or the maximum point (i.e. The peak) of the signal in that specific gate is used for evaluation purposes.
Making Measurements 3.1.2 Selecting the TOF-Detection Method (cont.) After completing your selection, move the joystick up or down ( ) to navigate away from this function. Note: The detection method chosen is indicated by a small icon. This icon is displayed in the display box containing the measured reading, and in the options offered in the READING 1 through 6 and LARGE function boxes. Making Measurements 3.1.3a Defining Gate-Alarm Logic (SETUP-CONFIG2-GATE A or B LOGIC) Each gate alarm can be triggered by one of two circumstances: either when an A-Scan echo crosses the gate or when no A-Scan echo crosses the gate. Use the following procedure to specify the gate LOGIC settings: In the SETUP menu, activate the CONFIG2 submenu using the joystick ( Use the joystick ( ) to select the function titled GATE A (or GATE B) LOGIC. Making Measurements 3.1.3b Assigning Alarm Output Indicator Lights (SETUP-CONFIG2-OUTPUT SELECT) As an option, one reading box may be configured as a virtual LED (see “Setting Gate Alarms and Outputs” on page 69), which is green when there is no fault condition and red when the alarm has been triggered.
This virtual LED corresponds to an OUTPUT, which is in-turn assigned to a gate alarm. Making Measurements 3.1.3c Select Gate to Be Magnified When Function Toggle Is Pressed ( SETUP-EVAL-MAGNIFY GATE) The user can indicate the action to be taken when either end of the Function Toggle is pressed. One option magnifies the A-Scan display, so the assigned gate spans the entire displayed range. Making Measurements Using Angle Beam Probes When connecting an angle beam probe to the instrument, adjustments must be made for probe characteristics as well as test piece geometry. These adjustments include:.
Probe angle. Probe X value = the distance from the probe Beam Index Point (BIP) to the front edge of its wedge. Making Measurements 3.2.1 Setting the Angle Beam Probe Parameters (cont.) ) to select the THICKNESS function, and input the thickness of the test piece. The thickness of a solid rod Use the joystick ( should be input as 1/2 of its diameter.
) to select the X VALUE function, and input the user-determined X value for the probe. Making Measurements 3.2.2 Indicating Leg with Color The leg in which a reflector is encountered, can be visually indicated on the instrument display using color. Setting the COLOR LEG function, located in the EVAL submenu of the SETUP menu, to ON causes each ultrasonic time region to be displayed in a unique color. Displaying Measured Results The instrument is capable of displaying up to seven measured readings at one time. Making Measurements Displaying Measured Results (cont.). DA - Material-thickness depth from the probe-contacted side of the test-piece surface to the reflector, represented by the Gate A echo. DB - Material-thickness depth from the probe-contacted side of the test-piece surface to the reflector, represented by the Gate B echo.
Making Measurements Displaying Measured Results (cont.) Note: Reference results (identified with “r”) behavior based on EVAL MODE are as follows:. DAC -% Amplitude or dB compared to corresponding DAC curve point. TCG -% Amplitude or dB compared to TCG reference level. Making Measurements Displaying Measured Results (cont.) The measured readings can be displayed at the top of the display screen either in six small reading boxes and one large reading box or in four large reading boxes. To set the reading box configuration: In the SETUP menu, activate the RESULTS2 submenu using the joystick ( Determine the configuration of the reading boxes by setting the MODE function to either LARGE (four parameters displayed) or SMALL (six parameters displayed in small boxes and a seventh parameter displayed in a large box). Making Measurements Locking the Gain Toggle and the Joystick The gain toggle can be locked so that pressing it has no effect on the instrument. In the SETUP menu, activate the CONFIG2 submenu using the joystick ( ) to select the function titled dB STEP.
Press the center of the joystick ( Use the joystick ( ) to activate the function. Making Measurements Setting the Gain Instrument gain, which increases and decreases the height of a displayed A-Scan, is adjusted with the Gain Toggle.
The instrument gain can be adjusted while in any menu location, except when the dB STEP feature is set to LOCK. Note: Pressing both buttons on the Gain Toggle simultaneously activates the AUTO80 function.
Making Measurements 3.5.2 Setting the User-Defined Gain Step (SETUP-GAIN-USER GAIN STEP) When adjusting the A-Scan gain, each press of the Gain Toggle increases or decreases the gain level by the amount of the dB STEP. To enter a user-specified gain step, known as USER GAIN STEP, complete the following steps: In the SETUP menu, activate the CONFIG2 submenu using the joystick ( Use the joystick ( ) to select the function titled USER GAIN STEP. Making Measurements Freezing the A-Scan Display By using the FUNCTION1 or FUNCTION2 functions in the SETUP menu, you can program one end of the Function Toggle to FREEZE the display. Then, whenever an A-Scan is active, pressing that end of the Function Toggle freezes the A-Scan display. The active A-Scan will remain as it appeared when the toggle was pressed and the display will remain frozen until it is pressed again. Making Measurements Using DAC Mode (Optional) When displayed, the DAC curve visually represents a line of constant reflector peaks over a range of material depths.
Remember that in DAC mode, the only deviation from traditional display and operation is the appearance of the DAC curve. All A-Scan echoes are displayed at their non-compensated height. Making Measurements 3.8.1 Recording the DAC Curve DAC Curve points are typically recorded from a standard with equally-sized reflectors (holes) located at various material depths. The primary echo from each of these points, for a total of up to 16 echoes, are recorded. When DAC mode is active, the instrument displays a line that represents echo peaks for constant reflectors at varying material depth. Making Measurements 3.8.1 Recording the DAC Curve (cont.) Note: If the Gate Detection Mode is set to PEAK, after the first DAC reference point is stored, two measurement result boxes are automatically set, if not already configured, to display SA and A%A values.
Repeat steps 2 and 3 to record additional DAC Curve points, up to a maximum of 16 points. Making Measurements 3.8.1 Working with DAC Mode In DAC mode the instrument uses the user-input reference points to create a curve representing the amplitudes of echoes representing same-size reflectors at varying material depth.
The recorded point data is stored until replaced or edited. To create a DAC curve and operate in DAC mode: With the DAC/TCG menu accessed, select the SETUP submenu. Making Measurements Using TCG Mode (Optional) When the optional TCG mode is in use, echoes from equally sized reflectors are shown at the same height on the A-Scan display.
Before using the TCG mode do the following: Make sure that the instrument/probe combination has been properly calibrated and that all instrument settings (PULSER, RECEIVER, etc.) have been properly configured. Making Measurements 3.9.2 Working with TCG In TCG mode the instrument uses the recorded reference points to calculate an amount of gain correction required to display each echo from same-size reflectors at the same amplitude.
The recorded reference point data is stored until replaced or edited. To use the stored reference points and operate in TCG mode: Enter the SETUP menu, and then select the TCG/DAC MODE function. Making Measurements 3.10 Adjusting DAC or TCG Display and Adding Offsets After the DAC or TCG curves are displayed, the addition of guidelines offset from the reference line by a fixed or variable dB value provides enhanced evaluating capabilities.
Similarly, the TRANSFER CORR function applies dB compensation for the difference in coupling conditions between the known standard and the test piece. Making Measurements 3.10.2 Setting Transfer Correction (DAC/TCG-MAT ATTN-TRANSFER CORR) To adjust the dB compensation for differences in ultrasonic coupling between the standard and the test piece: Access the MAT ATTN submenu in the DAC/TCG menu. Adjust the TRANSFER CORR function as required to compensate for coupling differences. Note: When TRANSFER CORR is set to any value other than 0, the displayed gain value appears in a contrasting color, indicating that the amount of applied gain differs from the listed “instrument”. Making Measurements 3.11 Editing and Deleting DAC and TCG Reference Points After your reference points are recorded, they may be individually deleted, their values may be manually adjusted, or new points may be manually entered (as long as the total number does not exceed 16 points). To edit points or input additional points: With the DAC/TCG menu accessed, select the EDIT submenu. Making Measurements 3.12 Deleting a DAC Curve or TCG Reference Points To delete a stored DAC curve or stored TCG reference points: With the DAC/TCG menu activated, select the SETUP submenu.
Activate the DELETE CURVE function. Activate the DELETE CURVE function a second time, then confirm your selection. The statement in the function box changes to TCG/DAC MODE OFF. Making Measurements 3.13 DGS Evaluation Mode (cont.) Using the DGS mode (Distance Gain Size), you can compare the reflecting power of a natural flaw in the test object with that of a theoretical flaw (e.g. A circular, disk-shaped equivalent reflector) at the same depth. You are comparing the reflecting power of a natural flaw with that of a theoretical flaw.
Making Measurements 3.13 DGS Evaluation Mode (cont.) In addition to the influencing variables already mentioned, these other factors affect the curve shape:. sound attenuation. transfer losses. amplitude correction value.
probe Also, the following probe parameters affect the curve shape:. Making Measurements 3.13 DGS Evaluation Mode (cont.) When the DGS mode is in use, echoes from equally-sized reflectors located at varying depths appear to lie along the DGS Reference Curve. When operating in DGS mode, the DGS Reference Curve is shown on the display screen.
Before using the DGS mode, do the following:. Making Measurements 3.13.1 Specifying a Probe and Preparing to Record the Reference Echo (cont.) If the user-defined probe type (PROBE #0) is selected, you can then select the PROBE NAME function. Then use the Gain Toggle and the Function Toggle to input a new name. Note that selecting any PROBE # value other than 0 will prevent you from modifying the PROBE NAME or any of the other settings described in this section. Making Measurements 3.13.2 Record the Reference Echo that Defines the DGS Curve Prior to generating the DGS curve, a test standard with a known reflector must be used to define a reference point. Acceptable test standards include these reference types: BW - Backwall echo with reference defect size defined as infinity. Making Measurements 3.13.2 Record the Reference Echo that Defines the DGS Curve (cont.) Note: The AUTO 80 function automatically sets the Gate A triggering echo to 80% of full screen height.
Note: Only one DGS reference echo can be stored at a time. To delete the currently stored reference, access the REF CORR submenu, select DELETE REF, and follow the on-screen prompts. Making Measurements 3.13.3 Display and Adjust the DGS Curve After a reference echo has been recorded, the DGS curve is displayed simply by selecting the SETUP submenu in the DGS menu, then setting the DGS MODE function to ON. Note that switching this value to OFF does not delete the curve - it simply removes the curve from the display and disables the DGS mode. Making Measurements 3.13.4 Evaluating Results in DGS Mode After the DGS curve is recorded and displayed, by turning DGS mode ON, echoes are automatically compared to the recorded reference.
There are three ways this comparison can be made and two additional DGS-related results that can be displayed: A%rA - Amplitude of the signal crossing Gate A as a percentage of the corresponding DGS curve amplitude. Making Measurements 3.13.5 Locks and Error Messages As long as a valid reference echo is stored, no functions can be changed which could cause an incorrect DGS evaluation. If an attempt is made to change such a function, the following error message appears:. Making Measurements 3.14 dB REF Evaluation Mode Note: Evaluation modes, such as dB REF, are selected via the EVAL MODE function in the EVAL menu. The selected evaluation mode menu then appears in the ACQUIRE menu bar. When dB REF is activated, the amplitude of the highest echo in A-Gate becomes the reference echo against which subsequent echo amplitudes are evaluated.
Making Measurements 3.14 dB REF Evaluation Mode (cont.) IMPORTANT: Remember that the highest echo in Gate A and the GAIN setting, when dB REF is selected, become the reference amplitude and gain values for as long as dB REF is activated. Note: The reference echo amplitude must not exceed 100% of full-screen height. Making Measurements 3.15 AWS D1.1 Weld Rating Evaluation Mode Note: Evaluating modes, such as AWS D1.1 / D1.5, are selected in the EVAL MODE function in the EVAL menu. The selected evaluation mode menu then appears in the ACQUIRE menu bar. This mode allows the analysis of welds according to AWS specifications D1.1 or D1.5 and provides a D1.1 or D1.5 rating. Making Measurements 3.15 AWS D1.1 Weld Rating Evaluation Mode (cont.) Before activating the AWS D1.1/D1.5 weld rating mode, be sure that all instrument settings are properly adjusted for the specific measurement application. Then access the AWS D1.1 submenu in the ACQUIRE menu, and follow this procedure: Apply couplant and couple the probe to a suitable reference test standard.
Making Measurements 3.16 JISDAC Evaluation Mode Note: Evaluation modes, such as JISDAC, are selected in the EVAL MODE function in the EVAL menu. The selected evaluation mode menu then appears in the ACQUIRE menu bar. While operating in JISDAC mode, the Gate A TOF MODE must be set to PEAK or JFLANK. Making Measurements 3.16.1 Recording the JISDAC Curve JISDAC Curve points are typically taken from a standard with equally-sized reflectors (holes) located at various material depths. The primary echo from each of these points, for a total of up to 15 echoes, are recorded. When JISDAC is active, the instrument displays a line that represents echo peaks for constant reflectors at varying material depth. Making Measurements 3.16.1 Recording the JISDAC Curve (cont.) Note: When the first JISDAC reference point is stored, two measurement result boxes will be automatically set (if not already configured) to display SA and A%A values.
Continue to record additional curve points, up to a maximum of 15 points (note that at least two JISDAC Curve points are required). When all of your points have been entered, select the FINISH function. Making Measurements 3.16.2a Interpreting JISDAC Lines and Classes The JISDAC display contains a recorded reference line and five fixed offset lines.
Three of the lines are labeled as follows: H Line – Connects the recorded reference points. M Line –. Making Measurements 3.16.2b Defining a BOLD LINE Measurement Reference (JISDAC-SETUP-BOLD LINE) The user-defined measurement reference is selected as follows: Access the SETUP submenu in the JISDAC menu. Use the BOLD LINE function to select the H, M, or L line. Note that the selected line is now shown in bold on the A-Scan display.
Making Measurements 3.16.3 Deleting a JISDAC Curve To delete a stored JISDAC curve: With the JISDAC menu activated, select the SETUP submenu. Activate the DELETE CURVE function, and then confirm your selection. The entry in the JISDAC function box changes to OFF. USM Go Operator’s Manual. Making Measurements no content intended for this page - proceed to next page USM Go Operator’s Manual. Data Sets & Reports Chapter 4.
Data Sets & Reports The USM Go can store data set files and generate reports. To perform these functions, see Figure 15 below and proceed with this chapter. HEADER EDIT MEMO EDIT MEMO IN REPORT FILENAME PARAM IN REPORT. Data Sets & Reports The FILES Menu To access the FILES menu and select the desired function, refer to Figure 15 on page 113 and complete the following steps: In the SETUP menu, activate the FILES submenu using the joystick ( ) to select the function titled ACTION. Data Sets & Reports Working With Data Set Files The current instrument settings, which includes most of the functional settings, can be stored as a data set file. When a stored data set file is later recalled, all active function settings are modified to match those contained in the data set file.
Also, if the A-Scan was stored in the data set file, it is displayed and frozen on the display screen. Data Sets & Reports 4.2.1a File Selection Mode ) to select the function titled FILENAME.
Press the center of the joystick once ( Use the joystick ( ) to activate the function in File Selection mode. Move the joystick up or down ( ) to select the desired file name from the list of SD card files. Data Sets & Reports 4.2.2 Recalling a Data Set File After selecting the RECALL DATASET action (see “The FILES Menu” on page 114), continue as follows: Use the joystick ( ) to select the function titled FILENAME.
Press the center of the joystick ( ) to activate the function in File Selection mode. Data Sets & Reports 4.2.3 Deleting a Data Set File After selecting the DELETE DATASET action (see “The FILES Menu” on page 114), continue as follows: Use the joystick ( ) to select the function titled FILENAME. Press the center of the joystick ( ) to activate the function. Data Sets & Reports 4.2.4 Editing a Data Set File Editing an existing data set file, requires a simple combination of the procedures described in the previous sections: Recall the data set file that you wish to edit (see “Recalling a Data Set File” on page 117).
Using the methods described in previous chapters, modify the active functional settings as desired. Data Sets & Reports Creating a Memo Memos may be attached to Data Set Files at the time the files are stored or to Reports at the time they are generated. After a file is stored, the attached memo may be modified.
To create or edit a memo: In the SETUP menu, activate the FILES submenu using the joystick ( Use the joystick (. Data Sets & Reports Including a Memo in a Report After creating a memo, you can specify whether that memo is included in a report. To add or remove a memo from a report: In the SETUP menu, activate the FILES submenu using the joystick ( ) to select the function titled MEMO IN REPORT. Data Sets & Reports Creating a Report Header Report Headers are attached to data set files at the time the files are stored. After a file is stored, the attached Report Header may be edited. To create or edit a Report Header: In the SETUP menu, activate the FILES submenu using the joystick ( Use the joystick (. Data Sets & Reports Including a Header in a Report After creating a header, you can specify whether that header is included in a report.
To add or remove a header from a report: In the SETUP menu, activate the FILES submenu using the joystick ( ) to select the function titled HDR IN REPORT. Data Sets & Reports Creating a Report IMPORTANT: Before proceeding be sure an SD card is installed in the instrument (see “Using the SD Slot, USB Connector & I/O Connector” on page 13). A report, with contents specified by the user, can be generated and stored on the USM Go SD card.
The following features of the active data set file can either be omitted from or included in the report:. Data Sets & Reports Storing a Report To store the report specified in the previous section: Note: If you have chosen to store the A-Scan image with the report, the image will be saved as a JPG file. ) to select the function titled FILENAME. Data Sets & Reports Fast Report The Fast Report option performs the same basic function as the Store Report option. The difference is that, if you save the A-Scan screen image along with the report, the image is saved as a bitmap file.
This permits the save operation to be completed significantly faster, but you should be aware that some SD card printers may not recognize the bitmap file. Data Recorder Files Chapter 5. Data Recorder Files The Data Recorder (DR) menu functions are shown in Figure 16 below.
Figure 16: The DR Menu USM Go Operator’s Manual. Data Recorder Files Naming the Data Recorder File In the SETUP menu, use the joystick ( ) to activate the DR menu (see Figure 16 on page 127). Then, proceed to the appropriate section below to either create a new file name or select an existing file name. 5.1.1 File Selection Mode Use the joystick (. Data Recorder Files 5.1.2 File Naming Mode ) to select the function titled FILENAME in the DR SETUP submenu. Press the center of the joystick twice Use the joystick ( ) to activate the function in File Naming mode. Move the joystick up or down ( ) to choose the first character in the desired file name.
Data Recorder Files Configuring the Data Recorder File After entering a name for the data recorder file, the following parameters must be specified: TOP - the coordinates of the first cell in the file, using a row number and an column letter (e.g. Data Recorder Files Viewing the Data Recorder File To view the DR file that you have just activated, you must complete the following steps: In the SETUP menu, activate the DR submenu using the joystick ( ) to select the function titled DR VIEW. Then, press the center of the joystick ( Use the joystick ( ) to activate the function. Data Recorder Files Viewing the Data Recorder File (cont.) Figure 17: The DR File Display USM Go Operator’s Manual. Data Recorder Files Using the Data Recorder File When the DR file is displayed (see Figure 17 on page 132), the name of the DR file is displayed at the top of the grid, and the currently selected cell is highlighted. At this point, the following actions may be taken: IMPORTANT: The two SEND functions described below will not work if the highlighted cell already contains data. Data Recorder Files no content intended for this page - proceed to next page USM Go Operator’s Manual.
Appendix A. Specifications Note: All instrument specifications listed in this appendix are subject to change without prior notice.
Also, see “EN 12668 Specifications” on page 149. A.1 LCD Display Active Area: 108.0 mm (W) x 64.8 mm (H), 5.0” Diagonal Size: 5.0”. A.2 Connectors Probe Connectors: 2, LEMO-00 SAP output, with an added ALARM pin UT Output Connector: USB Interface: Micro USB connector SD-Card Connector: Full-size SD card slot, accommodates all standard SD cards Range: 14,016 mm (552”) for longitudinal wave in steel -15 s to 3500 s Display Delay: 0 to 1000 s.
A.3 Pulser Note: All pulser measurements were taken according to EN12668 specifications. Pulser Mode: Standard: simulated spike Optional: uni-polar square wave via software control Pulser Voltage (SQ Mode): 20 V to 300 V, with a 10 V step and tolerance of 10% Pulser Falling/Rising Time: 10 ns maximum Pulser Width (SQ Mode). A.4 Receiver Digital Gain: Dynamic range of 110 dB, with a 0.2 dB step Analog Bandwidth: 0.2 to 20 MHz 30 V, across the full bandwidth Equivalent Input Noise: Target of.
GE Inspection Technologies Ultrasonics GEInspectionTechnologies.com Digital Eddy Current Film Testing Machines Ultrasonics X-ray When thickness measurement is needed. The DMS 2 is suitable for numerous test tasks on components subjected to wear.