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DMQ QS5 Series User Manual

Ultrasonic corrosion and thickness gauges.
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Summary of Contents for DMQ QS5 Series

  • Page 2 P/N: QSD 501 – ENG – Rev 3 – 2012...
  • Page 3 Chapter 1 First Steps Know the QS5 1.1.1 Front panel 1.1.2 Connectors Install or replace batteries Connecting the transducer The “Q” key Display illumination and contrast 1.5.1 Display backlight illumination 1.5.2 Display contrast Locking and unlocking the keypad Chapter 2 Measuring with the QS5 Numerical measure screen (Normal) 2.1.1...
  • Page 4 Chapter 3 Menu system and editing Instructions on using the menu system 3.1.1 Text editor Main menu 3.2.1 Change measuring unit 3.2.2 Alarm settings 3.2.3 Set BScan range 3.2.4 Select language 3.2.5 Unit information General configuration options 3.3.1 Set time and date 3.3.2 Set time and date format 3.3.3...
  • Page 5 3.4.12 Nums Zoom measuring screen mode 3.4.13 Continuous measuring monitor 3.4.14 Adjust pulser excitation voltage 3.4.15 Return to factory default settings Chapter 4 Using the Datalogger Understanding how data is organized Memory menu Creating a file Actions over single files 4.4.1 View data in a single file 4.4.2...
  • Page 6 Tips on how to measure correctly Technical specifications Additional information Unit maintenance QS5 accessories Error messages Our website: www.demeq.com Technical support...
  • Page 7 And thank you for purchasing a QS5 ultrasonic corrosion and wall thickness gauge. At dmq we develop, manufacture and distribute software and quality control instruments offering innovation and solutions that come as a direct result of listening to your needs as a user. We apply some of the latest technology available in the industry to build instruments that are robust, precise, and easy to operate.
  • Page 8 The information included in this manual applies to all QS5 series ultrasonic corrosion and wall thickness gauges including models B, DL, E and DLE. dmq is a registered trademark of demeq S.R.L and its affiliate companies. The information contained in this manual is intended to educate users on the operation of the QS5 gauges.
  • Page 9 affect tests done with this instrument. Specific information on those factors is outside the scope of this manual. When in doubt you should always seek expert advice or refer to specific textbooks on ultrasonic testing. Additional information can also be found on the internet and through local government agencies as well as in technical institutes.
  • Page 10 Figure 1: Echo-1 and Echo-2 mode acoustic wave representation In ultrasonic testing information is obtained from measuring sound waves. Users must be very careful when making assumptions in regards to the entire test piece condition when there are areas that have not been inspected.
  • Page 11 untreated steel, but the sound velocities vary significantly. Instruments should be calibrated before and after testing to minimize errors. Transducers must be in good condition and show no visible signs of excessive wear or defects on their surface. Badly worn transducers can provide erroneous measurements.
  • Page 12 All QS5 series corrosion and thickness gauges are for industrial use only and cannot be used in medical applications. The QS5 operates on two AA size batteries. We strongly recommend that you use only top brand name alkaline batteries. Disposal of your QS5 gauge and its components must be done in compliance with all applicable regulations.
  • Page 13 Figure 1.1: Front of the unit Graphic LCD display with LED backlight illumination Move Left key / Switch measuring modes: normal measurements or Echo-1 / Thru-Paint or Echo-2 (Echo) Move Up key / Manually store a value (Store) Move Right key / Switch to graphical measure mode screen (BScan) Menu key / Enter and exit measure screen / Exit and return to menus (Home)
  • Page 14 Move Down key / Quick access to memory menu screen options (Mem) Change backlight illumination key (On, Off, Auto) Enter key / Edit values on the measure screen (Edit) key: Power On and Shutdown (touch and hold for 2 seconds) / Make quick and short touches to activate special functions and features 10.
  • Page 15 The QS5 is powered by 2 (two) AA batteries that are placed in the battery compartment located in the back of the unit. To access to the battery compartment slide the cover as shown in figure 1.3-1 and gently push the extraction ribbon upward and slightly towards the right to release the batteries (figure 1.3-2).
  • Page 16 Figure 1.4: Replace / Insert batteries Notes Use new alkaline top brand batteries only. Do not mix new and old batteries. Always replace both batteries. Rechargeable batteries type NiMH can be used but will result in less time of continuous operation. Chapter 1...
  • Page 17 Important Do not remove batteries while the unit is powered as this affect Datalogger (See Appendix: “Additional information, Error Messages”) The QS5 has two type Lemo “00” connectors located on top of the unit. Because this is the standard for most dual crystal probes, you could basically connect any probe to your QS5.
  • Page 18 has three functions:  When the unit is off, touch for 2 seconds to power on the unit.  When the unit is on, touch for 2 seconds to shutdown the unit.  With the unit on, making short touches to the will activate special functions described in later chapters of this manual.
  • Page 19 The display contrast on all dmq units is digital. Touch the white dot located in the center of the vertical scrolling bar between the keys and a contrast window will open. Move your finger towards the top and or bottom of the dotted line to adjust the contrast on your display.
  • Page 20 Sliding the finger to the left will unlock the keypad. Figure 1.9: Unlocking the keypad Important The keypad can only be locked and unlocked in the measuring screens. Chapter 1...
  • Page 21 The QS5 can display measurements in 3 distinct numerical measuring modes or screens each one showing specific information. To switch numerical measure screens touch the key. Figure 2.1: Measure screen mode-1 Material velocity Datalogger mode indicator (Page 62) Measured value signal in differential measuring mode (Page Battery level indicator Thickness value in the selected unit...
  • Page 22 Inactive calibration disk indicator (Page 16) Coupling level indicator / material condition analyzer (Page 10. Echo energy level indicator (Page 22) 11. Gain level (Page 20) 12. Maximum measured value 13. Trigger level (Page 20) 14. Minimum measured value Note Touching the once will reset maximum and minimum values to zero and touching it again will...
  • Page 23 Figure 2.3: Measure screen mode-3 17. Data storage modes (Grid / SCAN) 18. Name of open file where data is being stored (Page 53) 19. Position within the grid of the last stored value (Column, Row) In all three numerical measure screen modes the following applies in terms of keypad functionality: : Touch once to switch from Echo-1 to Echo-2.
  • Page 24 : Touch to activate the Select / Edit mode. Four flashing arrows will appear over the fields of measurement, velocity, trigger and gain. Figure 2.4: Measuring screen in select / edit mode  To select thickness measurement touch  To select material velocity touch ...
  • Page 25 Note The measurement field can only be edited if an actual measurement was taken. If the measurement is 0.00 this field cannot be edited. Tips Touch the when editing velocity and a screen will appear with the most commonly used materials and their velocities.
  • Page 26 The QS5 allows you to view measured values in real time graphics. Figure 2.5: BScan graphic Zoom level Battery level indicator Datalogger mode indicator (Page 62) Thickness value in the selected unit Icon indicating that a value was stored Locked keypad icon indicator (Page 7) Inactive calibration disk indicator (Page 15)
  • Page 27 Keypad functions in the BScan graphic mode are the same as in the numerical measure screen modes except for the following (Page11) keys: : Go to the numerical measure screen mode : Short touches will zoom in / out of the graphic. Touch for 2 or more seconds to shutdown the unit.
  • Page 28 In order to measure the thickness of the calibration disk without activating the automatic calibration procedure simple touch the edge of the disk until an icon appears as shown in (Figure 2.1, 8. Inactive calibration disk While still touching the edge of the indicator, Page 9) disk, couple the transducer to obtain its thickness measurement.

  • Page 29: Front Panel

    In order to obtain precise measurements, especially when exchanging transducers, the QS5 can be calibrated with your own test piece samples. To access the two calibration modes available on the QS5, go to the Ultrasonic menu (page 43) and enter the Calibr. option. Select 2-Points and follow the procedure below for calibration: Figure 2.7: One point and two point calibration procedure Measure using the calibration disk located in the unit front...
  • Page 30 screen. When the calibration is done, the unit will display “Calibration… Done!”. At this point the unit will ask that you measure the first test piece sample “Measure 1st Pt.” and two additional options will be displayed: Edit and Exit. Touch (Exit) to end the calibration using just the unit calibration disk, or measure the first test piece sample.

  • Page 31: Thickness Value

    If you know the velocity of the material you will be measuring you can manually enter the velocity by doing the following:  Go to any numerical measure screen mode. If you are in graphic BScan mode touch (BScan) to switch to normal mode.
  • Page 32  Touch to select the thickness measurement field.  Use the cursors to set the thickness value and touch confirm or touch to cancel. When editing the thickness value observe that the velocity will change accordingly. Note When changing the material velocity using a known thickness value the unit must have already been calibrated for the transducer being used (Page 15).
  • Page 33 The image below shows how you to interpret changes done to the gain level represented in higher and lower gain values: Figure 2.9: Representation of high and low levels of gain The trigger level determines the echo signals detected by the unit. A higher trigger means lower sensitivity where only larger echoes are detected.
  • Page 34 When the material condition analyzer - available exclusively from dmq - is enabled, the QS5 can display any of the following coupling icons: Figure 2.10: Coupling icon representations...
  • Page 35  The material attenuation level that allows the operator to detect metal treatments that have an effect on the ultrasonic characteristics of a material. The QS5 has two modes for representing the energy absorbed by the transducer: No DAC: Shows only the energy level as provided by the transducer With DAC: Compensates the energy level based on the measured thickness.
  • Page 36 Tips Sudden intensity loses usually mean that there are defects in the test piece related to corrosion or pitting. When measuring thick test pieces with DAC turned off, the energy level decreases because a greater distance (thickness) usually results in more attenuated echoes being received by the transducer.
  • Page 37 The QS5 E and QS5 DLE gauges can measure thru-coatingings such as paint or epoxy so you no longer need to scrape and remove the coating in a test piece. The unit now “skips” the coating and measures only the actual test piece thickness. To enable thru-coating or thru-paint mode (Echo-2) touch the (Echo) key from the measuring screen and the unit will display the mode you are in.
  • Page 38 Figure 2.13: Ultrasonic settings on each echo mode All unit menu screens display an icon indicating the echo mode that the unit is operating in. Figure 2.14: Echo mode icon in menu screens In Echo-2 mode the unit does not need to be calibrated and calibration is actually blocked because when operating with multiple echoes the delay in the transducer does not affect the thickness measurement.
  • Page 39  Use sufficient coupling gel for stable coupling in order to avoid erroneous or incorrect readings.  Always use dmq hi-damp transducers to measure in Echo-2 mode. Standard probes will not work correctly in this mode. Chapter 2...
  • Page 40 The instructions explained in this chapter apply to all of the menus in the unit. To scroll QS5 menu options use the cursor keys. When you reach the end of the menu and move to the next menu option it becomes circular as shown below.
  • Page 41 The text editor is used to input, change, and delete; letters, numbers and symbols. Figure 3.3: Alphanumeric editor screens Selected key Cursor Text to be edited Virtual keyboard Use the cursor keys on the unit to scroll the virtual keyboard until you find the character you want to use and touch to select.
  • Page 42 Erase the character on which the cursor is on Enter and exit Figure 3.5: Quick access keys for the virtual keyboard editor Touch the key to open the quick access keyboard to the most commonly used virtual keyboard keys. Each virtual key corresponds to a key on the front panel of the unit as follows: : Move the cursor to the left : Erase the character on which the cursor is on...
  • Page 43 The main menu is the first list of options that appears when you exit the measure screen and it includes the most important settings. Touch from the measuring screen to access this menu. Figure 3.6: Main menu Note: The options of Configure, Ultrasonic and Memory are explained later on in this manual.

  • Page 44: Display Backlight Illumination

    Touch on High or Low to open the numbers editor where you can set alarm values using the cursor keys. Touch to save the alarm value that you entered and to return to the previous menu. Figure 3.8: Alarms menu options Any of the following alarm types can be selected: Flaw: The alarm is activated when the material condition analyzer detects the presence of a possible defect such as corrosion or pitting.
  • Page 45 Here you can set high and low values (thickness range) that will be represented on the vertical axis of the graphic BScan measure screen. Figure 3.9: BScan range and graphic representation Touch on BScan Range to open the menu. on High or Low to open the numbers editor where you Touch can set a value using the cursor keys.
  • Page 46 Select Unit Info to view information including owner data as well as the software version that your unit is running. To view different unit information screens touch the keys. To return to the main menu touch Note The information required to obtain model upgrade licenses is included in this option.
  • Page 47 Choose Set Clock to open the time editor and use the cursor keys to set the time. Touch to save and to enter the date editor screen. Set the date and touch to save and exit. Figure 3.12: Time and date editing screens Choose Clock Format to open the menu that allows you to set the time format (12Hs or 24Hs) and the date format (D/M/Y –...
  • Page 48 This option allows you to set the keypad sensitivity. The higher the number is that you set here, the more sensitive the keypad will be. on Key Sens. and use the Touch keys to change the keypad sensitivity. Touch to save and the keypad will already be working with the new sensitivity level.
  • Page 49 The unit will shutdown automatically if no key is touched or no measurement is made when you set the auto-off time. on AutoOff to set the time before the unit automatically Touch shutdown. Touch the keys to set the time and touch to save and exit.
  • Page 50 Tips Contrast on LCD screens can change with temperature. Use the contrast option to compensate for changes caused by temperature in order to maintain optimal viewing conditions. Beep refers to the sounds that the unit makes when keys are touched and when the audible alarm is activated.
  • Page 51 Figure 3.17: Enter password to access the user info menu The user information that can be added or changed at anytime includes the following: Name: Set or change the owner name. Phone: Set or change the telephone number. Name@: Set or change the e-mail (before the @). @Domain: Set or change the domain for the e-mail (after the @).
  • Page 52 Certain configuration options on your QS5 unit can be locked in order to avoid unwanted changes. Use of the locking options allow a supervisor to optimize unit configuration settings required for a specific test and then pass the unit on to an operator for him or her to conduct the actual measurements knowing that the unit has been properly configured and that the settings cannot be changed.
  • Page 53 QS5 models can be changed with software licenses that you can purchase from dmq. If you want to purchase an upgrade license we will need to know the following information:  Unit model  Unit serial number  The type of license that you would like to purchase...
  • Page 54 Figure 3.21: Response messages after a license is entered If the license number that you entered is correct the unit will show an updated license screen where the newly purchased license appears followed by a checkmark. Choose Set Default to return to the original factory default general configuration options.
  • Page 55 Select Ultrasonic from the main menu to display measuring configuration options. Setting these options correctly is critical in attaining reliable measurements. Figure 3.23: Measuring configuration options menu Touch on the Veloc. option to change the material velocity so that it matches the material that will be measured. Use the cursor keys to change the velocity and touch to enter.
  • Page 56 Figure 3.24: Change material velocity and material velocity list on Measure to open the measure modes options menu. Touch Figure 3.25: Measure mode options menu and set nominal value The modes in which measurements are represented are: Absolute: the unit displays the real measured value Different.: the displayed value is the result obtained from calculating: Differential = Real value –...
  • Page 57 on Gain to change this value and touch Touch to save. To exit without making changes touch For additional information on setting the gain refer to "Changing trigger and gain" (page 20). Touch on Trigger to change this value and touch to save.
  • Page 58 Notes A higher refresh rate increases energy consumption therefore reducing battery life. Storing measurements in the Datalogger at high speeds means the size of the memory is reduced a lot quicker. Measuring at 20Hz over one minute is equal on average, to 1200 measurements.
  • Page 59 Use the keys to choose any of the two available menu options and touch to select. To exit without making changes touch Figure 3.28: Type of coating options To measure thru-coatingings that are less than 1mm thick, select the Low Loss option. For high attenuation coatings such as epoxy (typically used in shipyards) and for coatings greater than 1mm thick, select the High Loss option.
  • Page 60 2-Point: Calibration is done with one or two test piece samples of a known thickness, and made of the same material that you will be measuring . The 2-Point calibration will usually result in more (page 17) precise thickness measurements. When you enable the Hold last option the last measured value will be displayed on the unit screen even when the transducer is not coupled.

  • Page 61: Coupling Icons

    Enable Analyzer so that the unit will alert the operator on the presence of possible defects with icons that appear on the measuring screen When the analyzer option is disabled the coupling (page 21). icon only indicates whether the transducer is coupled (measuring) or not coupled (in the “air”).
  • Page 62 When Nums Zoom is enabled the numerical measuring screen displays thickness measurements in larger numbers and only the velocity and minimum value are displayed. The minimum value is reset by touching key. Touch to enable the Nums Zoom option and touch again to disable.
  • Page 63 on Pulser to adjust the transducers pulser excitation level. Touch Touch the keys to adjust the tension and touch to save and exit. To exit without changes touch Figure 3.32: Transducer pulser excitation tension editor screen Just like with the trigger and gain settings the pulser tension is set separately for Echo-1 and Echo-2 modes.
  • Page 64 Choose Set Default to return to the original factory default ultrasonic configuration settings. Touch and a confirmation screen will appear. Touch to confirm and return to the previous menu or touch to exit without making changes. Figure 3.22: Set factory default settings confirmation screen Chapter 3...
  • Page 65 In order to optimize the use of the Datalogger in your QS5 DL and QS5 DLE it is important that you understand how data is organized. In the QS5 data is stored in 8 individual files with alphanumeric names. Each file contains a grid with columns and rows. And each grid contains columns (identified with consecutive letters;...
  • Page 66 Figure 4.2: Memory menu options based on unit model Touch on Files and use the cursor keys to navigate the list of files in the unit. Figure 4.3: Creating a file Select a file that appears as Empty (available file) and touch name the file with up to 10 alphanumeric characters.
  • Page 67 Remember that only one file can be open at any given time so whenever a new file is created, if a file was already open, the file that was open will be closed. Once a file has been closed, it cannot be reopened and new values can no longer be stored.
  • Page 68 Touch on View Data to view the contents of the file. Touch to exit the file. Figure 4.6: File view in a grid format To move inside the grid use the cursor keys. Touch on a value to open a histogram that includes that same value as well as the values included in the foregoing cells within that column.
  • Page 69 Figure 4.8: Quick access menu options in a grid Row: Enter a row number using the cursor keys so that when you touch the grid will position itself directly on that row. Column: Enter the column letter using the cursor keys so that when you touch the grid will position itself on that column.
  • Page 70 Figure 4.9: Quick access menu options in a histogram Error: Displays the number of errors and error percentage values in the batch based on the high and low alarm settings. Stats: View statistical information for the batch including Min., Max., Range and Mean values.
  • Page 71 Touch on a SCAN cell to open the quick access menu that allows you to easily move inside the scan and to view statistical information on the scan. Figure 4.10: Quick access menu in a scan graphic Goto: Access a specific position within the scan by entering its location (List).

  • Page 72: Text Editor

    Error: Displays the number of errors and error percentage values in the scan based on the high and low alarm settings. Distr: displays the distribution of values for the scan in a graphic format. Touch on Send File to send (units with Datalogger only) a single file to a PC using Windows HyperTerminal, or to a printer using an RS232 connection.
  • Page 73 Touch on Send All to send (units with Datalogger only) all files stored in the unit memory to a PC using Windows HyperTerminal, or to a printer using an RS232 connection. This option does not work in USB mode. The Erase All action permanently deletes all files stored in the unit memory and recovers 100% of the memory capacity.
  • Page 74 The QS5 Datalogger measure screen includes information and options to assist you in storing data. Figure 4.14: Information in the Datalogger measure screen Datalogger status indicator icon followed by any of the following letters: Datalogger is disabled (no open file) Manual capture mode Single auto capture mode Continuous auto capture mode...
  • Page 75 Notes The Datalogger status indicator can be viewed on all QS5 measure screens as well as in the graphic screen. If no file is open the Datalogger will display “No File” and the unit will automatically switch to the Min. Max. numerical measure screen mode.
  • Page 76 DataCenter. To view their contents simply double click on each file. For additional information on dmq DataCenter software refer to the manual included in the CD that you received with your QS5 or download the manual at http://www.demeq.com/Download.html...
  • Page 77 memory menu touch Configure open Datalogger configuration options menu. Figure 4.17: Datalogger configuration options menu The first two options in the configure Datalogger menu are Mode and Send which allow you to select how the unit will communicate with a PC or a printer.
  • Page 78 RS232: Select RS232 to connect to a PC or a printer using an RS232 cable (optional). Touch on Send to select whether you will send files to a PC or a printer. PC: When using an RS232 cable, the unit sends data in an optimal format for Windows HyperTerminal (38400-8-N-1).
  • Page 79 The QS5 has the following capture modes: Manual: Touch the key to store values. Single: Each time the transducer is coupled a thickness measurement is stored. In this mode values can also be stored using the key. Continuous: When the transducer is coupled thickness measurements are continuously stored at a rate of: Refresh / N Where refresh refers to the number of values per second that the unit...
  • Page 80 on Advanced to access the advanced configuration Touch options menu for the Datalogger. Figure 4.20: Advanced Datalogger configuration options menu on Store Every to set the number of measurements done Touch by the unit before a value (measurement) is actually stored in the Datalogger when Continuous capture mode is enabled (Page 66) When you enable history the Datalogger will register the unit settings...
  • Page 81 Touch on Clock to set the time and date options that will be recorded by the Datalogger each time a new batch is opened. Touch to scroll all menu options and touch to select and exit. Touch to exit without making changes. Figure 4.21: Record date and time in the Datalogger Off: The Datalogger does not record date and time.
  • Page 82 Do not measure outside the thickness range specified for the transducer that you are using. Use just enough coupling gel to ensure stable measurements. Avoid using excessive coupling gel as it may be added to the thickness value of the actual test piece being measured. Always do the zero calibration using the calibration disk located in the front of the unit particularly when changing transducers.
  • Page 83 Measuring principal Pulse-Echo / Echo-Echo Measuring range 0.6 mm to 500 mm (Pulse-Echo) 2.5 mm a 20 mm (Echo-Echo) Transducer frequency 2 to 10 MHz Capture speeds 4, 8 and 20 Hz Pulser tension Adjustable 20 V to 210 V V-Path Automatic correction Units...
  • Page 84 Display Graphic LCD 128 x 64 pixels with LED backlight illumination contrast adjustment. Keypad Touch-sense with no mechanical parts and sensitivity adjustment. Battery life 100 hours with 2 each type AA batteries Operating temp. - 10°C to + 50°C Enclosure High impact ABS with rubber sides.
  • Page 85 The QS5 was developed and manufactured for years of trouble free operation and even though the unit does not require special care the following precautions should be considered:  Avoid contact with corrosive and abrasive substances.  Do not clean the unit with solvents. ...
  • Page 86 No. Description QSM 300 Small high impact carrying case QSS 201 2Mhz transducer – 15 mm diameter QSS 501 5Mhz standard transducer – 10 mm diameter QS5 501 HD 5MHz Hi-Damp transducer – Thru-Paint QSS 701 7Mhz transducer – 5 mm diameter...
  • Page 87 Datalogger. Solution Download Datalogger values to PC or printer and erase memory. If a message with a different number appears on your unit display please contact dmq immediately. Appendix...

  • Page 88: Model Upgrade Licenses

    Model upgrade license information  New accessories To download software updates to your QS5 you must have dmq DataCenter installed on your PC. To download the latest updates for your unit refer to www.demeq.com/Download.html Our service department is committed to providing prompt and courteous service.
  • Page 89 P/N QSD-501-ENG-Rev 3 ©2012 dmq Capitulo 4...

This manual is also suitable for:

Qs5 bQs5 dlQs5 eQs5 dle

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