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DeFelsko PosiTector UTG Full Manual

Ultrasonic thickness gage
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Ultrasonic Thickness Gage
Full Guide v. 3.1

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Summary of Contents for DeFelsko PosiTector UTG

  • Page 1 Ultrasonic Thickness Gage Full Guide v. 3.1...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents Introduction ............Quick Start ............Certification ............Probes ..............How to Measure ..........Surface Conditions ..........Calibration, Verification and Adjustment ..... Menu Operation ..........Cal Settings Menu ..........10 Zero ..............10 Thickness ............11 Material ............
  • Page 3 Accessing Stored Measurement Data ....26 PosiSoft.net ........... 26 PosiSoft Desktop..........26 PosiTector App ..........Connect Menu ............. 27 WiFi..............27 Access Point........... 27 USB..............29 USB Serial Streaming........29 Sync.net Now..........30 Bluetooth Smart..........30 Bluetooth............31 Updates ............

  • Page 4: Introduction

    - Two (2) year warranty on Body and Probe Quick Start Quick Start The PosiTector UTG powers-up when the center navigation button is pressed. To preserve battery life, the instrument powers down after approximately 5 minutes of no activity. All settings are retained.
  • Page 5 Protective Cap PosiTector UTG gages ship with a protective plastic cap over the probe. Remove this cap prior to use. Replace it when the instrument is not in use to protect the probe. Wrist Strap We recommend attaching and wearing the supplied wrist strap.

  • Page 6: Certification

    Factory Calibration Measurement settings in use. Certification All PosiTector UTG probes include a Certificate of Calibration. For organizations with re-certification requirements, instruments may be returned at regular intervals for calibration. DeFelsko recommends that customers establish calibration intervals based upon their own experience and work environment.

  • Page 7: Probes

    Ultrasonic Thickness Probes - Theory of Operation PosiTector UTG probes transmit an ultrasonic pulse into the material to be measured. This pulse travels through the material towards the other side. When it encounters an interface such as air (back wall) or another material, the pulse is reflected back to the probe.
  • Page 8 The PosiTector UTG M in multiple-echo mode determines thickness by measuring the time between at least three consecutive back wall echoes. steel Figure 2 In the figure above, multiple-echo mode measures only the time between echoes. Regardless of whether the steel is coated or not, all times between echoes are the same.

  • Page 9: How To Measure

    When the probe senses echoed ultrasound, a coupled symbol will appear on the display and thickness values will be displayed. While the probe is coupled, the PosiTector UTG continually updates the display. When the probe is removed from the surface, the last measurement will remain on the display.

  • Page 10: Surface Conditions

    Surface Conditions Surface Conditions Ultrasonic measurements are affected by the condition, roughness and contour of the surface to be tested. Measurement results may vary on coarse surfaces. Where possible, it is recommended to seat the transducer on a smooth flat surface that is parallel to the opposite side of the material. On rough surfaces, the use of a generous amount of couplant minimizes the surface effects and serves to protect the transducer from wear, particularly when dragging the probe across a surface.

  • Page 11: Calibration, Verification And Adjustment

    Gage. Written Calibration Procedures are available online at no charge http://www.defelsko.com/downloads.htm Verification Gage accuracy can and should be verified using known reference standards of the material to be tested.

  • Page 12: Menu Operation

    Menu Operation Gage functions are menu controlled. To access the Menu, power-up the Gage, then press the center navigation button. Below is a sample menu for a PosiTector UTG Advanced Model: Memory Statistics Some buttons have a tick box to their Cal Settings right to indicate current status.

  • Page 13: Cal Settings Menu

    3. Select the Zero menu option and follow the on-screen prompts. Calibration Adjustment The PosiTector UTG is factory calibrated. In order for it to take accurate thickness measurements of a particular material it must be set to the correct sound velocity for that material. Be aware that material composition (and thus its sound velocity) can vary from stated tables and even between lots from a manufacturer.

  • Page 14: Thickness

    Thickness The most common method of adjustment is to measure a sample of known thickness. Select a reference standard of material as close as possible in composition to the intended application. For best results, the thickness of the reference standard should be equal to or slightly greater than the thickness of the part to be measured.

  • Page 15: Pt Adjust

    1. Select Velocity from the Cal Settings menu. 2. Adjust the display down (-) or up (+) to the desired velocity. Holding the (-) or (+) buttons increases the rate of change. 3. Press when the desired velocity is reached. 2 Pt Adjust A 2-Point adjustment allows for greater accuracy while simultaneously adjusting probe zero.

  • Page 16: Setup Menu

    Setup Menu Setup Menu Reset Reset (soft reset) restores factory settings and returns the instrument to a known condition. The following occurs: - All batches, stored measurements, images, and batch names are erased. - All calibration adjustments are cleared and returned to the Gage’s factory calibration settings.

  • Page 17: Min Scan

    20 readings per second and display min/max values. The PosiTector UTG M measures at a rate of 4 readings per second when Min Scan is selected. During scanning operations, the probe can be become physically...

  • Page 18: B Scan

    Adjust Display Gain - Adjusts the A-Scan amplitude/sensitivity. Use the (-)(+) buttons to decrease/increase gain. Adjust Display Lo/Hi Range - Adjusts the minimum and maximum displayed range for the A-Scan. Use the (-)(+) buttons to decrease/increase gain. Note: This does not change the instruments measuring range. Move Cursor - The Cursor allows for further analysis of the A-Scan.

  • Page 19: Se Mode

    B-Scan Menu Use the Up (move left) and Down (move right) buttons to navigate. Adjust Display Lo/Hi Range Adjusts the minimum and maximum displayed range for the B-Scan. Use the (-)(+) buttons to decrease/increase gain. Note: This does not alter the instruments measuring range. Clear Display - Press to clear the B-Scan display and start over.

  • Page 20: Smartcouple

    SmartCouple Coupled Smart Coupled When selected, the probe, once coupled, will remain coupled until the (+) button is pressed. Eliminates unintentional decoupling. During scanning operations, the probe can be become physically decoupled, that is physically separated from the material, either due to the rough and/or scaly surface of the material or due to user operation.
  • Page 21 AC charger (Gage must be powered ON). The battery state indicator icon is calibrated for the selected battery type. No damage will occur if the wrong battery type is selected. DeFelsko recommends eneloop (NiMH) rechargeable batteries. Units Converts the display from inch to metric or vice versa. Stored measurements in memory are not converted.

  • Page 22: Statistics Mode

    Language Converts displayed and printed words to the selected language. Statistics Mode Statistics Mode Statistics A statistical summary will appear on the display. Remove the last measurement by pressing the (-) button. Press (+) to clear statistics. Mean Standard (average) Deviation # of measurements...

  • Page 23: Memory Management

    Memory Management Memory Management The PosiTector UTG can record readings in memory for printing, transferring to a computer or synchronizing with PosiSoft.net. Readings are date and time stamped as they are taken. Button functions with Memory ON: Create a new batch...
  • Page 24 Advanced models store 100,000 readings in up to 1,000 batches. The Memory Menu includes the following options... New Batch Closes any currently opened batch and creates a new batch name using the lowest available number. For example, if only Batch 1 and Batch 3 exist, then Batch 2 would be created and made the current batch.
  • Page 25 New Sub-Batch (appears only if a batch is currently open) Creates a new sub-batch within the currently opened batch. Shortcut: When a sub-batch is open, create a new sub-batch by pressing (+). In the following example, B7s2 is a sub-batch of Batch 7. Sub-batching allows the user to group related batches so that statistics can be accumulated for them.

  • Page 26: Annotate

    Delete Removes a batch or sub-batch completely from memory. The name is deleted and all measurements are erased. Sub-batches can be deleted individually. To delete all related sub-batches, simply delete the top-level batch. View Scroll using the Up or Down buttons through information, statistical summary, and a list of each reading in the currently opened batch.
  • Page 27 NOTE: PosiSoft.net (pg. 26) and the PosiSoft App (pg. 26) are used to insert an Image and Notes into a batch.

  • Page 28: Summaries

    NOTES: Remove the last reading from the current open batch by pressing (-). Calibration adjustments cannot be made if any measurements were taken with that Cal setting and stored into a batch. Each batch can contain a maximum of 10,000 readings. (Advanced models only) Displays a summary of all stored batches including the name, probe...

  • Page 29: Accessing Stored Measurement Data

    Accessing Stored Measurement Data Accessing Stored Measurement Data DeFelsko offers the following free solutions for viewing, analyzing and reporting data: PosiSoft USB Drive - Connect the Gage to a PC/Mac using the supplied USB cable. View and print readings and graphs using universal PC/Mac web browsers or file explorers.

  • Page 30: Connect Menu

    (Advanced models only) Allows connection to your local wireless network or mobile hot spot. Ideal for using your network’s internet connection for synchronizing stored measurements with PosiSoft.net (pg.2). See www.defelsko.com/wifi Enable Turns WiFi functionality ON. When selected, the icon will appear on the display.
  • Page 31 The PosiTector is now visible to all WiFi enabled devices. Simply connect your devices WiFi to the new PosiTector Access point. All PosiTectors are uniquely identified by their respective gage body serial numbers. AP Channel - Default Channel: 6 For most users the default channel will not have to be altered. If you are experiencing poor connection or are unable to connect, try another channel.

  • Page 32: Usb

    Advanced gage bodies have the ability to serial stream live readings from the USB port The following document links will help operators use this feature: PosiTector Advanced USB Serial Streaming Instructions -- http://www.defelsko.com/usb/PosiTectorAdvanced-USBserial.pdf Required driver (referenced in above document) -- http://www.defelsko.com/usb/gserial.zip Retrieving stored screen captures: The last 10 screen captures stored in memory can be accessed by navi- gating to the “screen capture”...

  • Page 33: Sync.net Now

    Sync .net Now The below WiFi, USB and Bluetooth menus contain a Sync .net Now option. When selected, the Gage immediately synchronizes stored measurement data via its respective communication method (internet connection required). Alternatively, select Auto Sync .net from within the USB connect menu to automatically synchronize upon connection to a PC.

  • Page 34: Bluetooth

    Allows individual readings to be sent to a computer, printer or compatible device as they are taken using Bluetooth wireless technology. See www.defelsko.com/bluetooth Pairing The instrument and receiving device must be paired before stored or streamed datasets can be transmitted. For pairing instructions, see http://www.defelsko.com/bluetooth...

  • Page 35: Updates

    Updates Determines if a software update is available for your Gage. If an update is available, a prompt will appear allowing the user to choose to perform the update at this time or not. To perform an update the Gage must be connected to an internet connected computer with PosiSoft Desktop (pg.

  • Page 36: Application Notes

    Application Notes Application Notes Measuring on pipes (UTG C probes) When measuring the thickness of pipe walls, the proper placement of the transducer is important. On pipe diameters larger than 10cm (4 inches), it is recommended to place the probe parallel to the long axis of the pipe.

  • Page 37: Measuring On Hot Surfaces

    Measuring on hot surfaces Measurements taken at higher temperatures (above 100° C / 212° F) require special consideration. Both material sound velocity and probe zero will change with temperature. For maximum accuracy at high temperatures, adjustment should be performed using a material of known thickness heated to the temperature where measurements are to be performed.

  • Page 38: Troubleshooting - General

    Troubleshooting Troubleshooting Some common reports received by our Service Department along with possible causes. Most conditions however can be cleared with a Reset (pg. 13). UTG C and UTG M probes Gage fails to power down Ensure the probe is clean and free of couplant. The Gage will not turn off if coupled symbol is displayed on LCD.
  • Page 39 UTG M multiple echo (ME) probes only Gage displays -.-- (dashed lines) when measuring on an smooth uncoated surface in multiple echo mode See UTG M probes note on pg. 5 Gage is coupled, but not measuring On smooth, uncoated metal surfaces the Gage (in multiple echo (ME) mode) may occasionally be unable to give a measurement result even when the "coupled"...

  • Page 40: Gage Readings Double Expected Thickness 35 Measurement Jumps When Probe Is Lifted 35 Troubleshooting - Multiple Echo (M) Probes

    wheels may be necessary using care not to gouge the surface. 4. There may be a coating on both sides of the metal. Switch to SE mode for best results. ME (multiple echo) and SE (single echo) results are not the same When measuring a COATED piece of metal, ME and SE modes will likely produce different thickness values as expected.
  • Page 41 Flaws, voids or pits A void or flaw inside a metal object is better detected in SE mode where the Gage will measure the distance from the surface down to the flaw. Scan-mode will help locate the flaw. In ME mode the Gage may not “see”...

  • Page 42: Power Supply / Battery Indicator

    Power Supply / Battery Indicator Power Supply / Battery Indicator Power Source: 3 AAA alkaline, Lithium or optional Nickel-metal hydride (NiMH) rechargeable batteries. For best battery indicator results, ensure the appropriate Battery Type is selected in the Setup > Battery Type menu (pg. 18). The battery indicator displays a full bar with fresh alkaline or fully charged batteries installed.

  • Page 43: Technical Data

    Technical Data Technical Data Operating Range: Gage: 0 to 50° C (+32° to +120° F) Probe: -20° to 55° C (-4° to +131° F) continuous Material Surface Temp: -40° to +150° C (-40° to +300° F) Size: 146 x 61 x 28 mm (5.75” x 2.4” x 1.1”) Weight: 140 g (4.9 oz.) without batteries Conforms to: ASTM E797 This device complies with part 15 of the FCC Rules.

  • Page 44: Returning For Service

    DeFelsko and PosiTector are trademarks of DeFelsko Corporation registered in the U.S. and in other countries. Other brand or product names are trademarks or registered trademarks of their respective holders. Every effort has been made to ensure that the information in this manual is accurate. DeFelsko is not responsible for printing or clerical errors.

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