DMQ QS3 B, User Manual

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Page 2: ...P N QSD 301 ENG Rev 3 2012 ...

Page 3: ...ng with the QS3 2 1 Measuring screen 9 2 2 Keys in the measuring screen 10 2 3 Zero calibration Auto 12 2 4 Changing the material velocity 13 2 4 1 Change to a known velocity 13 2 4 2 Change velocity using a known thickness value 13 Chapter 3 Menu system and editing 3 1 Instructions on using the menu system 15 3 2 Main menu 16 3 3 Change measuring unit 16 3 4 Alarm settings 17 3 5 Memory Menu 18 3...

Page 4: ...in 24 3 6 4 Set auto off time 24 3 6 5 Adjust display contrast 25 3 6 6 Beep activation 25 3 6 7 Hold last value 26 3 6 8 Unit information 26 Tips on how to measure correctly Technical specifications Additional information Unit maintenance QS3 accessories Error messages Our website www demeq com Technical support ...

Page 5: ...ustry to build instruments that are robust precise and easy to operate We are convinced that our products would not be complete without permanent technical and after sales support So in addition to a great product we offer Quick answers to your inquiries Unlimited access to technical information as well as application notes Special offers for registered customers Firmware and software upgrades at ...

Page 6: ... to property damage personal injury or even death Demeq S R L assumes no responsibility as a result of the improper use of our instruments ASTM E797 The user must be trained in ultrasonic testing procedures and on how to properly configure the unit for testing All of the following should be taken into consideration Understand the theory on sound wave propagation Select the instrument as well as th...

Page 7: ... in technical institutes The QS3 operates with dual crystal transducers that use the pitch catch principal Dual crystal transducers use two piezoelectric crystals whereby one crystal is excited with short electrical pulses from the unit sending short acoustic waves into the test piece The second crystal then receives the acoustic waves reflected at the end of the test piece The frequency of the ac...

Page 8: ...er is also known as zero calibration or delay calibration Page 12 If the unit and transducer are not calibrated or calibrated incorrectly the resulting measurements will be unreliable Each and every time a transducer is changed it must be calibrated to the unit Because the sound velocities in materials will often vary significantly from published values best results are obtained when the instrumen...

Page 9: ...nt layers that may result in testing errors The amount of couplant should be kept to a minimum and consistent pressure should be applied on the transducer when measuring Doubling refers to a thickness measurement that displays a reading that is twice or even three times the real test piece thickness Doubling often may happen when trying to measure below and above the specified range for the transd...

Page 10: ...lled instruments always make sure that the operations required for your application are in correct working order Demeq S R L provides a limited warranty for a period of 2 two years on electronic units and for 6 six months on transducers from the date of purchase and may be extended for up to 5 years Every instrument undergoes thorough testing during manufacturing as well as before shipping In the ...

Page 11: ... display with LED backlight illumination 2 Move Left key 3 Move Up key 4 Menu key Enter and exit measure screen Exit and return to menus Home 5 Enter key Edit values on the measure screen Edit 6 Move Down key Quick access to memory menu screen options Mem ...

Page 12: ...ecial functions and features 9 Calibration disk 10 Horizontal scrolling center point lock and unlock keypad on measure screen 11 Vertical scrolling center point adjust LCD contrast Figure 1 2 Unit connectors 1 Receiving transducer connector Type Lemo 00 2 Emitting transducer connector Type Lemo 00 3 USB mini connector to connect to PC using a USB cable QS3 DL only ...

Page 13: ...n figure 1 3 1 and gently push the extraction ribbon upward and slightly towards the right to release the batteries figure 1 3 2 When you install new batteries first insert the positive end of each battery so that it coincides with the positive pole inside the battery compartment as you see in figure 1 4 1 Always leave the extraction ribbon underneath the batteries Figure 1 3 Removing batteries ...

Page 14: ...ace 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 ...

Page 15: ...al probes you could basically connect any probe to your QS3 Keep in mind that the gain may need to be adjusted when changing probes To connect the probe simply align any of the male connectors located at the end of the transducer cable to any of the female connectors located on the gauge and press gently until connected To release the probe hold the knurled section on the male connectors and pull ...

Page 16: ...h for 2 seconds to shutdown the unit 3 With the unit on making short touches to the will activate special functions described in each chapter of this manual Backlight illumination and contrast options can be changed from any screen in the unit Touch to change the backlight illumination Figure 1 6 Backlight illumination options ...

Page 17: ...tment To lock the keypad place your finger on the white dot located in the center of the horizontal scrolling bar between the keys Move your finger to the right following the dotted line and a window on the unit display will open with the word Lock Continue moving your finger in the same direction until you enter locked mode The window on the display will close and the locked keypad indicator will...

Page 18: ...8 Chapter 1 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 screen ...

Page 19: ...con indicating that a value was stored 2 Locked keypad icon indicator Page 7 3 Inactive calibration disk indicator Page 12 4 Coupling indicator 5 Measuring unit 6 Battery level indicator 7 Minimum measured value set to zero touching 8 Thickness value in the selected unit 9 Material velocity ...

Page 20: ...ows will appear over the fields of material velocity and measurement Touch to select thickness measurement Touch to select material velocity Figure 2 2 Measuring screen in select edit mode Always use the keys to edit the values in any given field and touch to save 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...

Page 21: ...it and return to the edit velocity field When a measurement was taken and the velocity is changed a new measurement is automatically displayed that reflects the change in velocity Figure 2 3 Material velocity table A short touch will reset the minimum measured value to zero Touch for 2 or more seconds to shutdown the unit Changes the backlight illumination Adjust display contrast Lock and unlock t...

Page 22: ...h is the default material velocity used in this calibration method Tip 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 3 Inactive calibration disk indicator Page 9 While still touching the edge of the disk couple the transducer to obtain its thickness meas...

Page 23: ...ocity and a screen will appear with the most commonly used materials and their velocities Use the cursor keys to scroll the list and touch to select or touch to exit and return to the edit velocity field If you do not know the velocity of the material but you know the material thickness you can set the velocity using the material thickness value by doing the following Measure the material for whic...

Page 24: ...h to 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 12 ...

Page 25: ...eys When you reach the end of the menu and move to the next menu option it becomes circular as shown below Figure 3 1 Example of how a circular menu works To select a menu option touch and to exit and return to the previous menu touch To go to the measuring screen touch from the main menu Figure 3 2 The Home key from the measuring screen ...

Page 26: ... important settings Touch from the measuring screen to access this menu Figure 3 3 Main menu All available main menu options are explained herein Touch on Unit in the main menu to open the list of available units Use the keys to scroll the menu Touch to select the unit and touch to save and exit this menu Figure 3 4 Units menu ...

Page 27: ... where you can set the low alarm value using the cursor keys Touch to save and return to the previous menu Figure 3 5 Alarms menu options Any of the following alarm types can be selected Beep Audible intermittent alarm type Screen Visible alarm that causes measurements to be displayed in dotted instead of regular numbers Light Visible alarm that activates the display backlight illumination causing...

Page 28: ...alues can be viewed on the unit display but they cannot be sent to a PC or a printer Values can only be sent to a PC via USB with the QS3 DL using DataCenter software Figure 3 6 Memory menu options based on unit model In the QS3 DL memory menu touch on Connect to enter the waiting to connect to PC mode Touch to exit and cancel the connection Figura 3 7 Connecting to PC ...

Page 29: ...ick on each file For additional information on dmq DataCenter software refer to the manual included in the CD that you received with your QS3 or download the manual at http www demeq com Download html Note Connection to a PC is only posible with a QS3 DL The QS3 B does not connect to a PC Touch on View Data to view the contents stored in the memory in a grid format Touch to exit the grid Figure 3 ...

Page 30: ...yed asking you to confirm or to cancel this action Touch to cancel and return to the previous menu or touch to begin deleting all files Figure 3 9 Erase All confirmation screen When the erase all action has been confirmed the following screens will be displayed Figure 3 10 Erase All progress screens After this process is completed all of the cells in the grid will be empty ...

Page 31: ... key to store values Auto When the transducer is coupled measurements are continuously stored Free memory is followed by a number representing the remaining memory that is available to store data and is represented in number of cells Touch on Free to view the remaining number of free cells and the free memory space as a percentage of the unit total memory Figura 3 12 Remaining memory screens ...

Page 32: ...settings such as Gain and other more general settings such as Keypad Sensitivity and AutoOff time Figure 3 13 Unit configure menu Touch on Language which is also identified with a flag to view available language options Use the cursor keys to scroll available language options and touch to select Touch to save and exit this menu Figure 3 14 Language menu options ...

Page 33: ...irm the change in sensitivity touch If you touch any other key or the counter that appears on your screen reaches 0 0 the sensitivity will return to its previous setting The factory default setting is 50 Under special conditions we suggest that the sensitivity level be changed Tips If the unit will be operated using security gloves we recommend that the sensitivity level be raised To make the keyp...

Page 34: ... when changing transducers Touch the keys to adjust the gain value and touch to save and exit Touch to exit without making changes Figure 3 16 Adjust gain level The unit will shutdown automatically if no key is touched or no measurement is made when you set the auto off time Touch on AutoOff to set the time before the unit automatically shutdown Touch the keys to set the time and touch to save and...

Page 35: ... to save or touch to exit without making changes Figure 3 18 Screen contrast settings 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 Touch to enable or disable th...

Page 36: ... and the transducer is not coupled the unit display will read Touch to enable or disable this option Figure 3 19 Measuring screens with hold last value enabled or disabled Touch on Unit Info to view the hardware and software versions in your unit To view different unit information screens touch the keys To return to the main menu touch Figure 3 20 QS3 unit information screens ...

Page 37: ...ed in the front of the unit particularly when changing transducers Know the velocity of the material you will be measuring or have a reference test piece made of the same material you will be measuring and of a known thickness value so that you can precisely determine the material velocity based on its thickness Gain levels are set from factory with the optimal values that correspond to the transd...

Page 38: ... 787 3 in ms Calibration Auto 1 Point Alarms Minimum Audible and visual Languages English Spanish Portuguese Datalogger Up to 5000 values Manual and Continous capture modes View data in grid or graphic formats Conecction to PC QS3 DL only USB native or RS232 optional Display Graphic LCD 128 x 64 pixels with LED backlight illumination and digital contrast adjustment Keypad Touch sense with no mecha...

Page 39: ... substances Do not clean the unit with solvents Do not leave the unit display exposed to direct solar light for prolonged periods of time as this could damage the display Remove the batteries if the unit will be stored for an extended period of time Remove the transducer using the connectors and not the cable Do not twist or strangle transducer cable Do not expose the unit to temperatures below 10...

Page 40: ...diameter QSS 501 5Mhz standard transducer 10 mm diameter QSS 701 7Mhz transducer 5 mm diameter QSR 161 6 step calibration block mm QSR 141 4 step calibration block in QSG 001 Coupling gel small QSG 002 Coupling gel large QAC 002 RS232 cable to connect to a PC QAC 003 RS232 cable to connect to a printer ...

Page 41: ... Figure A 2 System error message Error 1 Internal Error Cause Internal Error Solutions Shutdown the unit wait a few seconds and power back on Contact dmq Error 2 Attempt to store a value over an existing value Cause Improper unit shutdown Example Removing batteries and powering the unit back on to store values in the Data Logger Solution Download Data Logger values to PC or printer and erase memor...

Page 42: ... it relates to your QS3 including Application notes Manuals and brochures New accessories Our service department is committed to providing prompt and courteous service Should you encounter any issues with your QS3 please send us a detailed description of your problem to www demeq com form_Support html ...

Page 43: ...33 Capitulo 4 P N QSD 501 ENG Rev 3 2012 2012 dmq ...