MALA HDR - Eastcom
Contents
1. Power Save Mode Used to activate power saving for the MALA Easy Loc ator HDR monitor Select the On option to activate the Power Save Mode When this mode is selected the monitor will enter a sleep mode with the backlight dimmed after 30 seconds of inactivity while in the Stopped mode of oper ation Movement of the push turn knob revives the mon itor from this sleep mode and subsequent movement of the knob will result in normal operation of the push turn knob The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Note This function is automatically disabled when a scan is started Imperial or SI Used to set the unit system either Imperial or System International Sl The push turn knob is used to sele2. or located on the cart handle using two screw Mounting MALA Easy Locator HDR on the optional MALA RTC Rough Terrain Cart The MALA Easy Locator HDR antenna control unit and monitor can also be used together with the MALA Rough Terrain Cart RTC which increases the operational cap abilities in more rugged terrain Warning Once the MALA Easy Locator HDRhas been mounted on the RTC and the system is powered up enter the Settings Menu on the monitor and set the Acquisition Parameters to RTC Forward This causes the wheel calibration to be changed from the internal antenna encoder to the RTC encoder Easy Locator Monitor RTC shaft RTC Antenna Cradle Velcro strips Antenna Dismount the antenna from the MALA Easy Loc ator HDR shafts Unclip the Shaft securing pins lift the shafts from the antenna and place in a secure location Warning Remove the power cable from the rear of the antenna before attempting to dismount the shafts Failing to do so may result in damage to the power cable and connections Locate the antenna in the cradle of the RTC Transfer the antenna to the RTC cradle and secure in pos ition using the Velcro straps Note The cradle is adjustable to ensure that the antenna is kept close to the ground for optimal signal performance Mount the monitor Remove the monitor from the shaft handle transfer and secure to the handle of the RTC using the two screws and Velcro strips Connect
3. 65 185113N 18 746838E Soil 700 m us Antenna HDR Mid MI Trigger type Forward The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Main Menu The items available under the Main Menu vary depending whether the system is in Stopped mode or Started mode Stopped mode gt File 65 185113N 18 746838E to Soil 100 m us Antenna HDR Mid MI Trigger type Forward Started mode aN LANES SF NT magl ee eno EJ File 130201_155846 jpg Soil 102 m us Antenna HDR Mid MI Trigger type RTC Forward Quit Quit and shutdown the system after completing the radar measurements Note If the QUIT option is executed but the monitor is not turned off immediately the unit has to be put through a power cycling sequence before it can be restarted This is achieved pressing the power switch on the monitor and then waiting for 5 10 seconds before pressing the power switch again If this procedure is not followed the unit will fail to turn on ENEP TUNE Press the Start button to start scanning The GPR I Start data will begin to appear on the black screen as the unit is
4. in the case when using the encoder wheel on rough terrain cart RTC is pushed in the forward direction RTC Backward Uses an external encoder as in the case when using the encoder wheel on rough terrain cart RTC is pulled in the reverse direction Time Triggering Used when horizontal dis tance information is not available such as in the case of rough terrain Measurements are initiated at specific time intervals System Parameters Select this option to open the System Menu and apply system parameters Upload Screenshots Upload GPR profile images to an USB thumb drive connected to the monitor Note This option is only available if the Screen shot Option is activated Upload GPS makers Upload GPS makers to an USB thumb drive con nected to the monitor Na Note This option is only available if the GPS Option is activated Save Saves changes to the Setting Menu Cancel Closes the Setting Menu without applying changes System Menu The System Menu is accessed by selecting and pressing the System Parameters but ton in the Settings Menu Note The System Menu is divided between two screens The first screen is displayed as the default and the second screen is accessed by selecting and pressing the NEXT SCREEN gt gt button from the first screen System Menu Time and date Battery max level Il PowerSave Mode On Select and press to access the Imperial or SI Si second System Language English Menu scr
5. EXAMPLE This function can be used to create com plete shapes as shown here Convention Meaning or Use Example Glossary term Linked to a glossary User the Background term The definition is removal tool to remove displayed in a pop up noise from the GPR profile box when the cursor is allowed to hover over the term Expandable text Allows title and bullet Detects metallic and non Content goes here points to be expanded metallic utilities to reveal related con tent i 3 kahi 34T NE s l Locating professionals know the difficulties associated with non metallic utilities and that conventional locating tools leave you a few pieces short Let the MAL Easy Locator help you fill in the missing pieces GPR is the only technology available that does not require a physical con nection to the utility nor does itrely on radiating elec tromagnetic EM fields that may or may not be present or detectable Gold underlined text Hyperlink to another Go to www malags com for resource external or the latest software download internal Example 2Typical GPR reflection profiles contain noise and unwanted reflections that are produced by antenna ringing differences in the coupling of energy with the ground multiple reflections that occur between the antenna and the ground surface and system and background noise Additional Resources Resource Location GPR Training www malags com Support Training GPR Appl
6. both tings the monitor and antenna Rotate the push turn knob to select the Restore Fact ory Settings option and press to perform a reset when experiencing problems or if you would like to reset the settings to the default factory settings A confirmation dia log is displayed before reset operation is performed Use the push turn knob to accept or reject this action Warning This option should only be used as a last resort when the Restore Predefined Settings option fails to solve the issues that you are experiencing NEXT SCREEN gt gt Used to access the second System Menu screen Rotate the push turn knob to select the NEXT SCREEN gt gt option and press to display the second System Menu screen The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Default Start Depth Time Interval GPS Parameters System Menu screen 2 Default start depth Time G Time interval Used to set the default depth for the start ofa GPR scan Tip Itis good practice to start with a large value and reduce this value later by using the zoom function Rotate the push turn knob to select the Defau
7. data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Upload the screenshot image Connect a USB thumb drive to the back of the monitor and the push turn knob to select and press the Upload Screenshot button located under the Settings menu GPS Option The GPS Option add on is available for the MALA Easy Locator HDR monitor With with the GPS Option activated it is possible to create GPR profiles and place makers in the GPR data using location information acquired from the built in DGPS antenna or an external GPS that is mounted and connected to the MALA Easy Locator HDR This data can then be exported and then imported into Google Earth to display the position of the buried objects Differential GPS uses satellites and a correction from a reference station satellite accuracy around 0 5 2 m The available systems for the Easy Locator are currently EGNOS Europe WAAS USA GAGAN India and MSAS Japan Setting GPS Makers Activate GPS Option and set GPS Para menters See Option in the System Menu section for information about how to activate this functionality and the Setting up the GPS section of information about setting GPS parameters Commence GPR profile scan Position the MALA Easy Locator HDR at the start of the
8. investment To register your equipment simply navigate to www malags com Support Product Registration on our website and submit the registration form System Assembly and Set Up MALA Easy Locator HDR is an integrated system consisting of a monitor and antenna linked through a single data power cable Easy Locator Monitor Easy Locator Cart Battery compartment Data Power cable GPS receiver Easy Loctor Antenna incl Controller The controller and other necessary electronics are built into the MALA Easy Locator HDR antenna to ensure highest possible signal to noise ratio SNR The MALA Easy Locator HDR monitor is mounted on the handle of the cart and connects to the wheeled HDR antenna through a single data power combination cable and dis plays the data as the instrument is pushed forward Hardware Assembly MALA Easy Locator HDR is delivered with its handles mounted on the antenna and fol ded This is the most convenient position to pack and transport the equipment and by simply unfolding and locking the shaft locks the system is ready to use Shaft lock Shaft securing pin Tip Changing antennas or otherwise dismounting the shaft is best accomplished with the fold able shaft in the extended up right position Simply insert the shafts with monitor and battery box attached into the slots on the antenna and secure with the Shaft securing pins Note The monitor can be removed from
9. levels 100 100 m ps Acquisition mode Forward System Parameters CJ Upload screenshots Upload GPS Markers Save Cancel Color Change the color scheme for the GPR profiles Three options are available a gray scale and two different color schemes Backlight brightness Set the brightness to suit the ambient light con ditions This setting can be adjusted within and range of 0 100 Tip Reducing the backlight will extend the bat tery life between charges Soil Type Set wave velocity based on soil type Setting the wave velocity allows the adjustment of the depth scale for differing soil conditions Warning This is a critical setting if accurate depth information is required Soil conditions can vary rapidly with location and all depth information must be used with caution Tip Using the Hyperbola fitting tool is a good way of calculating the soil type and usually achieves the best results when estimating the depth of a utility Acquisition Mode Set the type of trigger to be used for initiating a measurement The trigger information is used to establish the horizontal scale for each GPR profile Five triggering options are available Forward Uses the encoder located in the left rear wheel when the MALA Easy Locator HDR cart is pushed forward Default setting IBackwards Uses the encoder located in the left rear wheel when the MALA Easy Loc ator HDR is pulled backwards RTC Forward Uses an external encoder as
10. of the equip ment giving best practices and detailed information regarding specific applications Data Acquisition 0 c cece cece cece cece ccc ec cee eecceceeeeecceceeeeeeerees 33 Data Interpretation c cece cece cee eeececeeececeeeceeee 36 Screenshot Option naasa agad ana calves DL GD ce secencceededeescnsseincs shexaacdseasnaes 42 GPS Option _ 2 20 o oo cece c cece cece cece cece ce cecceeceeecceeceeeccesccesccesseeseeeees 44 Setting GPS Makers u au nen nen nnneed 45 Exporting data and Google Earth 47 Setting up the GPS 8c nnn eee 49 Hyperbola Fitting occ cece cece cece cece eee ec cee eeeeeeceeeeeeeeerees 51 Operating Environments 2 0 0 000 000 cece eee eee cece eee ec eee ceceeeeeeeeee 55 Data Acquisition Power up MALA Easy Locator HDR Press the power buttons on the HDR Antenna and the mon itor 1 Turn on Antemna 2 Turn on Monitor Note Power indicator lamps will remain on for both the monitor and the antenna when the power is on and the unit is functioning correctly Determine the alignment of the utility Use push turn knob to select and press the Start button and then make several passes of the target site to determine the approximate location and orientation of the utility by searching for a feature signature 65 185162N 18 746827E Antenna HDR Mid MI Trigger type Forward 1The push turn knob is f
11. susan eeeeeeneeeree 32 Data Acquisition 2ccc ccc 0000000000000 0000000000000000 0 0000000002022212 33 Data Interpretation 22 2 0 2 0 22 occ cece ccc cc nce cnc cence 0 0000000000222222 36 Hyperbola Signatures 2 2 22 2 c2c0ecceceseneececeesencesceceteecetescecescesaes 36 Detecting differing materials and sizes of features 2 37 Screenshot Option 2 0 20 2 cco ccc ccc ccc cece cc cece cece cece ceeececeteeeeeseeees 42 GPS Qption ee 44 Setting GPS Makers e cece aaoo aadar aooaa aaraa oaaao aaoo 45 Exporting data and Google Earth 02 2 ce eee ee eee een 47 Setting up the GPS 022 cece eee ec ccc ccc ec eee ceeeeececeeeeeeeeeeeeee 49 Hyperbola Fitting 2 22 2 0 200 c cece cece cece cece cece eee ec cee eeececeeceeeeeeceeeeceess 51 Operating Environments 0 20 00 c cece eee cece cece eee eee e cence eeeeeeeseneeneeees 55 Maintenance and Troubleshooting 0 00 20 c cece eee ec eee eec cece ee 56 Equipment Maintenance 2 2 2 2 20 2202 ccc ccc ceec cece cece ceccceceeeeseeeeeeee 57 Battery maintenance and handling 20 0 00 0 c cece cece cece ec eeeeeceeeeeee 57 Equipment handling and storage 0 020 222 cece cece cece ccc ec cece ecceeeeeeeees 58 Antenna calibration 2 0 0 00 20 20 cece cee cece cece cece cece ec eeceecceceeceeceeceeeeeees 58 Software updates 2 02 0 0 eee cece cece nunne cece eeecee
12. the GPS Parameters Menu and will need to be set also GPS parameters See the GPS Parameter Menu section for more information about setting these parameters Hyperbola Fitting Hyperbola fitting is a standard procedure for estimating the average velocity of the GPR signal to a point reflector Different ground conditions dialect properties affect the signal velocity and the resulting shape of the point reflector signature in the GPR profile Dry sandy soils allow the signal to propagate easily resulting in a higher signal velocity and flatter signature than in the case of wet clay where the wave propagation is much slower Using this phenomenon it is possible to estimate the signal velocity in the ground by comparing and fitting the shape of the measured hyperbola to that of pub lished hyperbola shape verses signal velocity data Once the signal velocity has been determined it is possible to estimate the depth to the point reflector causing the sig nature Warning The user must ensure that the scan is accurately aligned at 90 degrees to the line of the utility Any increase in the angle of the scan from the perpendicular will cause the shape of the hyperbola to broaden and result in an overestimation of the signal velocity Start a GPR scan Use the procedure described in the Data Acquisition section to conduct a GRP scan across the area where a utility is loc ated Position the MALA Easy Locator HDR over the utility After
13. the subsurface H hyperbola The type of reflection often associated with a round object or a utility especially when the angle profile of the radar is at 90 degrees to the utility It is a distinctive n shaped reflection N noise Typical GPR reflection profiles contain noise and unwanted reflections that are pro duced by antenna ringing differences in the coupling of energy with the ground mul tiple reflections that occur between the antenna and the ground surface and system and background noise P point reflector Small bodies i e around the size of the radar wavelength around 0 1 10m in diameter which have a considerably different dielectric constant than the surrounding material These point reflectors produce a hyperbola signature in the GPR profile push turn knob The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter R Real Time Kinematic GPS RTK GPS Real Time Kinematic GPS is expensive uses two GPS receivers one stationary base and one rover and a correction signal from the base antenna The accuracy is around 1 2 cm Network RTK also available in many locations whe
14. transformation to the x y values when extracting the coordinate data from the gpm file In some cases this may be as simple as interchanging the x and y values View data in Google Earth Connect the thumb drive to a computer and open the marker file with the km extension from Google Earth The markers are displayed as points on Google Earth Further information about the data quality and distance of the marker from the beginning of the GPR profile is displayed in an information bubble that appears after clicking individual marker points EXAMPLE When saving screenshots from the MALA Easy Locator HDR monitor the markers are shown above the GPR profile with a corresponding ID allowing the cross ref erencing and viewing of marker data to be made between the screenshot and Google Earth Setting up the GPS Open the System Menu See System Menu for more information about accessing and using the System Menu Open the GPS Parameters Menu Using the turn push knob navigate to the GPS Parameters Menu button and press to open the menu panel GPS parameters Set the GPS parameters Using the instruction provided in theGPS Parameters Menusection set the parameters for the GPS and select and press the Save and Exit button to save the setting and return to the Systems Menu Note When using the COM port to connect to an external GPS two more parameters COM port Baud rate and Check Sum Validation are displayed in
15. via an external GPS unit such as the RTK survey grade GPS antenna connected to the COM port Once this option is selected the Com port Baud rate and Checksum validation options will appear in the GPS Parameters acreen Com port Baud rate communication speed and Check Sum validation must be set to correspond to the output values of the attached antenna Rotate the push turn knob to select the either the Com port Baud rate or CheckSum validation option press to enter editing mode rotate to select a value and press again to set the selection and exit editing mode Once the COM port parameter are set correctly and the monitor starts to receive GPS information the coordin ates will appear at the bottom of the GPS Parameters screen GPS parameters COM DGPS RTK Fix Float 9600 f GPS ven Coordinates Option Save and Exit Used to register and activate optional features in the MALA Easy Locator HDR There are two optional features currently available Screenshot Option and GPS Option See Features and Accessories section for more information Activation of Options Serial number of Antenna Unit I Firmware version 30001087 Activated options are identified with Active displayed to the right of the option Contact MALA Geoscience to pur chase and activate these features Note The Serial number of Antenna Unit and Firm ware version information is required by MALA Geoscience to activate option Used
16. ALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Voltages battery 43560 10 57v Sena AAVA VAVA VAVA VAVA VAVA VA VAVA U SRAM Test OK Communication Card Tests OK Flash Memory Test OK GPS Test OK Data Card Tests OK Start Tests Upload test resul J Quit Press the push turn knob with the Start Tests button selected to commence the testing Each item of hard ware will be tested sequentially with the results of each tested displayed on the screen and written to a file Rotate the knob to select the Quit button and press to exit this screen Note These results can be uploaded to a pen drive using the Upload test results jpg option for further diagnosis of the system by MALA Geoscience or a local representative Data Disk Format Used to reformat the SSD radar data storage device in the MALA Easy Locator HDR monitor Tip Itis recommended that reformatting is performed periodically to maintain peak performance for data management Rotate the push turn knob to select the Data Disk Format option and press to initiate reformatting A con firmation dialog is displayed before commencing the operation Use the
17. MALA Easy Locator HDR to be folded creating a more compact package for efficient transportation and storage Quick and easy GPR system The MALA Easy Locator HDR is an easy to use entry level Ground Penetrating Radar GPR system designed to meet your utility locating needs The MALA Easy Locator HDR is the tool of choice for those who need to quickly and easily identify the presence of buried utility infrastructure Efficiency and simplicity The MALA Easy Locator HDR as well as the user interface is designed for efficiency and simplicity consistent with the needs of the utility locating industry Operation with a combined push turn knob to control the program flow is unmatched in the field in terms of simplicity Pressing and turning the knob activates the various menus after they are highlighted it s that simple The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Accessories and Optional Features MALA Rough Terrain Cart RTC MALA RTC is a robust carrier for MALA Shielded Antennas designed to handle rough GPR surveying Visit our website for more information about the MALA RTC S
18. PR profile is precisely aligned with the middle of the feature signature The cart is now standing dir ectly over the utility and a mark can be draw on the ground adjacent to the arrow on the antenna to mark the utility loc ation An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature Middle of buried feature Tip The last signatures can be retained on the screen by lifting the back wheels when moving theMALA Easy Locator HDR in position for the next scan In this way a comparison between the different scans can be made directly on the screen This can only be acheived if the GPR profiles are relatively short as the space on the screen is limited Data Interpretation Buried utilities are displayed in the GPR profile as a hyperbola which is often referred to asa signature The shape size and intensity of these signatures can help identify the features that are causing the reflections The following are examples of data inter pretation based on analysis of the hyperbolic reflections Hyperbola Signatures When the GPR scan is conducted perpendicular to the direction of a buried utility the bur ied utility is displayed in the GPR profile as a hyperbola point object The hyperbola sig nature 2is desirable since pinpointing the exact location and depth of the buried utili
19. Press the push turn knob again to set the horizontal crosshairs in position The Hyperbola Fitting tool will be dis played on top of the feature signature with its apex locked to the crosshairs 0 Crosshairs aligned at the VA apex of the hyperbola The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 3An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature Fit the Hyperbola Fitting tool to the feature sig nature Rotate the push turn knob either clockwise or anti clockwise to adjust the size of the hyperbola until its matches the shape of the underlying
20. The Global Leader in Q Ground Penetrating Radar MALA GPR Solutions Ni a si f Pa lt s MALA Easy Locator HDR USER MANUAL MALA Easy Locator HDR User Manual Guide for Operating MALA Easy Locator HDR Our Thanks Thank you for choosing MALA Geoscience as your Ground Penetrating Radar solution provider The very core of our corporate philosophy is to provide our users with the very best products support and services Our development team is committed to providing you with the most technologically advanced and easy to use GPR products with the cap ability to meet your needs for efficiency and productivity now and into the future Whether this is your first MALA Geoscience product or addition to the MALA collection we believe that small investment of your time to familiarize yourself with the product by reading this manual will be rewarded with a significant increase in productivity and sat isfaction At MALA Geoscience we welcome comments concerning the use and experience with our products as well as the contents and usefulness of this manual Please address any questions or suggestions by using the feedback channels list below MALA Geoscience team MALA Easy Locator HDR User Manual by MALA Geoscience MALA Geoscience Press amp MALA Geoscience MALA Geoscience Under the copyright laws this manual may not be copied in whole or in part without the written consent of MALA Geos
21. also available on what to do in case the equipment may have been damaged during shipment Note If a defect in the equipment is discovered make sure to contact MALA Geoscience prior to use and follow the instructions for Repacking and Shipping in this section MALA Easy Locator HDR Features 16 Accessories and Optional Features 19 Unpack Inspect Register 00 000 0 00 00 c cece cece cece ccc ec cece aaraa onanan 21 System Assembly and Set Up c eee e nce ee ec eeeeenes 23 Height adjustment 29 Safety and Compliance eeneneneeeeeee 30 31 Technical Specification 2 cece eee eee eee ececcececeeceees MALA Easy Locator HDR Features MALA Easy Locator HDR is precision engineered to harness all the power of GPR in one easy to use system that is dedicated to locating buried utilities These are some of the reason locating professional prefer MALA Easy Locator HDR Detects metallic and non metallic utilities Locating professionals know the difficulties associated with non metallic utilities and that conventional locating tools leave you a few pieces short Let the MALA Easy Locator help you fill in the missing pieces GPR is the only technology available that does not require a physical connection to the utility nor does it rely on radiating electromagnetic EM fields that may or may not be present or detectable Foldable frame The hinged shaft design allows the
22. aw ne UST pases wie LY Y Aa nr ann fy NA a Time ns m SIN ws wy pase A Ni byway ei 7 Nw F Ne wt sf Nm Nya WA E ipon NAA VASA W FR EN tyi A Pal E w NA ng 2 Distance ft EXAMPLE The next image demonstates the signatures caused by a void under the road A dip in the road was the first indication that there was something wrong and the GPR survey and the resulting GPR profile reveals the existance of a void above a drainage culvert _ a Void under the road EE Time ns lul uda Screenshot Option The Screenshot Option add on is available for the MALA Easy Locator HDR monitor Using the monitor with the Screenshot Option activated it is possible to save GPR pro files that are displayed on the monitor s screen See Option function under the System Menu section for information about how to activ ate this functionality Collect GPR data Transverse the target area to collect a GPR data profile Apply filters and data cleansing Cleanse the data by applying filters until you are satisfied with the result Take a screenshot Use the push turn knob to select and press the Screen shot button A full screen capture of the GPR profile is saved to memory with the date and time stamp included on the bottom of the image The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update
23. ceceeceeceeeeeeee 58 Monitor Software Upgrade eee eee 59 Troubleshooting Frequently Answered Questions 1 1 60 Service and Repairs coe ccc cece cece cece eee ec eee ceceeceecceceeeeeeees 62 Technical Support ua 63 User Interface AA 64 Main Display Window seen erne 65 Main Menu 2 0 2 0 20 c eee e cece cece c cece cece cece ec cecececeeeeececcecceceseceeceeees 66 Settings Menu 020 cee cece eee ce nce eccecceccecceceeceececceeceeceeceeceeuceseenes 70 System Menu 2 cece eee e eee cece eee e cece eee eecececeecceceeceeceeeeeeeeeeeeees 73 Glossary AA 83 iale l a va ne ee eee tree 86 Preface The following sections contain information about this manual About this Manual ua 9 Manual Contents ccc sects See ec ADDL LLALL LLLA ee Se 10 Conventions 2 na Sa hohe Se LALA oc ree at eee be ec dyang daka kah 11 Additional Resources 2c occ ccc ccc cc cece cceeeccececcceteeceetecsteteees 13 About this Manual This manual is written for the end user of the product and explains how to set up and con figure the product as well as providing detailed instruction on its use Basic theory for Ground Penetration Radar is outlined to help the operator understand the underlining technology References for thorough discussions of this topic and applications for the technology are also presented Known issues and limitations precautions best
24. cience Your rights to the software are governed by the accompanying software license agreement The MALA Geoscience logo is a trademark of MALA Geoscience registered in the Sweden and other countries The product described in this document is subject to continuous developments and improvements All particulars of the product and its use contained in this document are given by MALA Geoscience in good faith However all warranties implied or expressed including but not limited to implied warranties or merchantability or fitness for purpose are excluded This document is intended only to assist the reader in the use of the product and every effort has been made to ensure that the information in this manual is accurate MALA Geoscience shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product MALA Geoscience the MALA Geoscience logo are trademarks of MALA Geoscience registered in Sweden and other countries Other company and product names mentioned herein are trademarks of their respective companies Mention of third party products is for informational purposes only and constitutes neither an endorsement nor a recom mendation MALA Geoscienceassumes no responsibility with regard to the performance or use of these products MALA Geoscience MALA Geoscience AB Skolgatan 11 SE 920 70 Mala Sweden www malags com Release Date Ve
25. creenshot Option The Screenshot Option add on is available for the MALA Easy Locator HDR monitor With the Screenshot Option activated it is possible to save GPR profiles that are dis played on the monitor s screen See the Screenshot Option section for more details on this feature Additional Battery Additional Li ion Battery Pack 12 V 3 5H for the MALA Easy Locator HDR Contact MALA Geoscience for more information Additional Battery Charger Additional Li ion Battery Charger 12 6 V for the MALA Easy Locator HDR Contact MALA Geoscience for more information Shipping case Robust shipping case for the MALA Easy Locator HDR Contact MALA Geoscience for more information Unpack Inspect Register Great care should be taken when unpacking the equipment Be sure to verify the con tents shown on the packing list and inspect the equipment and accessories for any loose parts or other damage The standard MALA Easy Locator HDR should include some or all of the following com ponents Note The packing list that is included with the shipment should be read careful and any dis crepancy should be reported to our sales department at www malags com corporate contact Easy Locator Monitor Easy Locator Cart Battery compartment Data Power cable GPS receiver Easy Loctor Antenna incl Controller Note All packing material should be kept in the event that any damage occurred during ship ping File any claim for s
26. ct and set the desired unit system Rotate the knob to select either the Imperial or SI option press to enter editing mode rotate to select a value and press again to set the selection and exit editing mode Language Used to set the language to be used for menus and sys tem options Rotate the push turn knob to select the Language option press to enter editing mode rotate to select a value and press again to set the selection and exit edit ing mode Hardware Tests Used to perform self tests of individual items of hard ware Rotate the push turn knob to select the Hardware Tests option and press to access the test screen The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 3The push turn knob is fitted to M
27. ecreases the contrast level The Time gain button is used to adjust the time A gain for the GPR profile The push turn knob is rotated to increase or decrease the applied time gain Note When the Auto Gain option in the Sys tem Menu is selected the manual Time gain is deactivated and removed from the main screen Typical GPR reflection profiles contain noise and unwanted reflections that are produced by antenna ringing differences in the coupling of energy with the ground multiple reflections that occur between the antenna and the ground surface and system and background noise 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 3Background removal is used to remove horizontal and nearly horizontal features in the radargram by subtracting a calculated mean trace from all traces sample by sample It can be useful for removing the direct air wave first arrival or ringing due to poor ground conditions from the data Care must be taken in this process not to remove real linear features from the data The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mou
28. een Hardware Tests NEXT SCREEN gt gt Data Disk Format Software Upgrade Restore Predefined Settings Restore Factory Settings Save and Exit System Menu screen 2 Default start depth Time Gain Time interval GPS Parameters lt lt PREVIOUS SCREEN Time and date Used to set the current time and date The push turn knob is rotated to select the Time and date option and then pressed to enter data editing mode and begin editing the values Once in data editing mode the push turn knob is used to select and edit the individual values of the date year month day and time hours minutes Rotate push turn knob to move the selection to a value press to select rotate again to roll through values and press again to set the selection Once all the updates are made the push turn knob is rotated to the End button and pressed to quite the activity Battery max level Used to set the maximum battery voltage of the battery being used with the MALA Easy Locator HDR This value is used to calibrate the Battery level indic ator Note Default for the Battery max level is set to 11V which corresponds to the maximum voltage 11 1V of the standard internal supplied with MALA Easy Loc ator HDR If another type of rechargeable battery is used this setting must be changed to match its rated voltage Warning Incorrect settings for the Battery max level will result in erroneous reading in the Battery level indicator
29. er Interface The following sections contain a detailed description of the user interface and give tips and warning designed to help the user achieve the highest possible level of productivity and safety while operating the MALA Easy Locator HDR Main Display Window 2000100 0 0 0 cece ccc c ccc ec eee cec eee ceceeeceeceeeees 65 Main Menu 22222222 00050000 0 e eee eee eee eee ce eee eeeeeeeeeeeeeneeneeess 66 SettingsMenu eee eee 70 System Menu eos ae ces echo aus eee seated 73 Main Display Window The MALA Easy Locator HDR monitor uses dedicated software design specifically for locating buried utilities Note The monitor utilizes a Transreflective LCD display for maximum visibility in sunlight The screen is weather resistant IP 66 standard to withstand rain and dust The monitor is operated with a dual function push turn knob for menu navigation Menu items are selected by rotating the knob clockwise or anti clockwise The selected item is then executed by pushing the button Note The monitor Main Display Window appears about 20 seconds after turning on the mon itor and HDR antenna Horizontal scale Battery usage indicator 2 4 6 NG 10 12 14 m L maka GPS precision indicator r 0 5 Vertical depth scale Main menu N MALA Antenna type and depth setting 1 0 15 2 0 Pia a 25 3 0 4 Soil type Triggering type
30. estimated using MALA Easy Locator HDR Under favorable conditions and using advanced hyperbola fitting tools the following examples demonstrate some of the capabilities of GPR in the hands of an experienced user EXAMPLE Refracted waves from the o sides of the trench 0 5 1 5 2 0 The concrete sewer line in the middle is large enough to leave a signature from both the top and the bottom of the pipe A close look also shows that the radius of the signature is larger compared to the water pipes to the left This indicates that the object has a larger diameter In this example signatures from the sides of the trench can also be seen When a trench is backfilled changes the properties in the ground even if the same ori ginal material is used cause GPR wave reflections off the interface between the fill and the trench sidewall Note As the diameter of the feature increases the reflected signature flattens In this way an estimate of the relative size of the feature can be made by inspecting the radius of the hyper bola The reflection from the cable on the right also have a smaller radius confirming this phe nomena EXAMPLE The following GPR image also illustrates the effect of flattening the hyperbolas with an increase in the size of the feature In this case the radius of the hyper bola from the 4 gas line is observed to be considerably smaller than the USTs underground storage tanks A p
31. feature signature and press the knob to complete the fitting process At this point the signal velocity will be displayed at the top of the Hyperbola Fitting tool 0 1 2 Signal velocity naasa a Ll man Hyperbola Fitting tool align over the feature Set the velocity and exit the Hyperbola Fitting tool When the hyperbola fitting operation is complete press the push turn knob twice to set the velocity and exit the func tion The new signal velocity value based on the hyperbola fit ting will appear in the bottom left of the monitor display 1The push turn knob is fitted to MAL monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 2An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature 3The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressi
32. he unit will also emit a click when turning off Wait 10 seconds before switching on the monitor and antenna Note If the monitor is not responding turn the unit off by push ing the power switch Control settings Check the settings in the Settings Menu Note Incorrect settings for the Acquisition Mode will not dis play updates of the location of the MALA Easy Locator HDR in the GPR profile when a scan is started Verify that the correct option is selected Service and Repairs To maintain maximum performance MALA Easy Locator HDR should be regularly ser viced Contact MALA Geoscience or your MALA Geoscience representative for more information on how to service MALA Easy Locator HDR If MALA Easy Locator HDR is damaged or malfunctioning make a service request on our website www malags com More Service and Repair options Frequently answered question Service and Repairs Technical Support MALA Geoscience is committed to providing exceptional product support Our technical support representatives are available online to help you find answers to even the most challenging technical support issues Our experienced support team works very closely with the development teams to ensure that every client receives the best possible sup port Technical support requests can be made directly from our website www malags com More support options Frequently answered question Training Software updates Service and Repairs Us
33. hipping damage with the carrier immediately after discovery of the damage and before the equipment is put into use Any claims for missing equipment or parts should be filed with MALA Geoscience within fourteen 14 business days from the receipt of the equipment Note Two serial numbers are attached to the equipment 1 on the backside of the monitor and 2 on top of the antenna under the power and GPS support Repacking and Shipping The MALA Geoscience packing kit is specially designed for shipping MALA Easy Locator HDR The packing kit should be used whenever shipping is necessary If original packing materials are unavailable pack the instrument in a wooden box that is large enough to allow at least 80 mm of shock absorbing material to be placed all around the instrument This includes top bottom and all sides Warning Never use shredded fibers paper or wood wool as these materials tend to pack down and permit the instrument to move inside its packing box Please read our shipping instructions before returning instruments to MALA Geoscience These instructions can be found on our website at www malags com Support Service Repairs Contact MALA Geoscience for more information Registering MALA Easy Locator HDR By registering your equipment you ensure that you receive up to date documentation software upgrades and product information which all helps to optimize the utilization of the equipment and realize the maximum return on your
34. ications www malag s com Resources Applications GPR Case Studies 78 www malags com Resources Case Studies GPR White Paper www malags com Resources White Papers GPR FAQ www malags com Support FAQ Description Information about regularly scheduled Ground Penetrating Radar GPR train ing seminars at our offices in Sweden USA China Malay sia and Australia Detailed information about the various applications of Ground Penetrating Radar across dis ciplines including civil engineering geoscience arche ology law enforce ment and education Database of case studies using Ground Penetrating Radar in industries including con struction mining homeland security education and archaeology Database of tech nical papers dealing with the application of Ground Pen etrating Radar in industries including construction mining homeland security education and archaeology Knowledgebase for Ground Penetrating Radar Feedback Feedback regarding the contents of this manual or the product may be sent using any of the following channels Phone Sweden Phone USA Phone China Phone Malaysia Phone Australia Web 46 953 34550 1 843 852 5021 86 108 225 0728 60 0 3 6250 7351 61 438 278 902 www malags com feedback Get Ready Set up Go This section walks through the steps for getting ready setting up and basic operation of your new MALA Easy Locator HDR Information is
35. information DISCLAIMER MALA Geoscience takes no responsibility for incorrect estimations of material properties or the size of buried objects using MALA Easy Locator HDR The signature from a buried object in amplitude and phase is dependent on the contrast in dielectric properties between the object and the surrounding material At times it is therefore possible to compare the signature obtained from nearby objects at identical depth and make an estimate of the material properties Usually but not always the sig nature from a metallic object metal pipe will be more intense than from plastic material PVC pipe or fiber optic cable buried in similar soil This can be observed for the GPR profile in the example below where the signature from the metallic water pipe on the right is much stronger and sharper than the signature from the adjacent PVC pipe to the left The size of an object can be estimated using an advanced version of the Hyperbola fit ting tool which is not available in the simplified version of the software included with MALA Easy Locator HDR Comparing the signatures from two linear objects e g pipes of different size diameter buried at exactly the same depth and scanned at exactly 90 degrees there is likely to be a clear difference in their respective signatures Note Within these limits it is possible to determine that one object is larger smaller than the other but the exact size of an object should never be
36. ing it all up Connect cables to the monitor Connect the longer combined power data cable supplied with the RTC to the monitor External Battery connector Parallel port Serial port Data power connector USB port Note Look for the countersink in the power cable and place it towards the mark on the connection Push lightly If you have it in the correct position it will go in its position smoothly To dis connect pull out holding the metal part of the Connection Connect cables to the control unit Connect the combined power data to the front of the antenna Power input Ethernet connection Note The power cable to the rear of the antenna is connected to the battery pack on the RTC see Battery section below for more information Finally connect the encoder cable from the RTC wheel to the rear of the antenna Encoder cable Note The precision of the encoder wheel depends on several factors such as the condition of measurement surface the pressure applied on the wheel and possible wear Warning When using MALA Easy Locator HDR with a RTC the wheel calibration must be changed from the internal antenna encoder to the RTC encoder set up Once the system is powered up enter the Settings Menu on the monitor and change the Acquisition Parameters to RTC Forward Power up Start the MALA Easy Locator HDR by pressing the start but ton on both the HDR antenna and the monitor 1 Tu
37. ions If you encounter a mechanical failure that cannot be fixed on site please contract MALA Geoscience or your MALA Geoscience representative for advice System malfunctions Most malfunctions are power or data communications related Before contacting your local MALA Geoscience office or authorized dealer please follow these simple steps Check battery capacity Connect the battery to the charger and switch on the charger at the electrical outlet The light on the battery charger should be either yellow or green indicating an operative charge If the indicator light is red continue charging until the charging cycle is complete i e indicator light turns green Check connectors e Disconnect and reconnect the battery connector in the MALA Easy Locator HDR battery box or RTC battery bag e Disconnect and reconnect the power cable con nectors on the rear of the MALA Easy Locator HDR battery box or RTC bag and the connector on rear of the antenna e Disconnect and reconnect both ends of the com bined power data cable between the antenna and the MALA Easy Locator HDR monitor e Check the pulse encoder connector on the rear of the antenna Restart MALA Easy Locator HDR Turn off the MALA Easy Locator HDR antenna and monitor by first selecting QUIT from the on screen menu options on the monitor confirm the action by selecting YES then push the power button on the monitor and release quickly The red light will then stop blinking and t
38. itted to MAL monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 2An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature Develop a survey grid Develop a survey grid based on the estimated alignment of the utility Set perpendicular survey line to be traversed and used to determine the precise lateral location of the utility and its longitudinal extent Also set several parallel survey lines to determine the presents of any lateral services Perpendicular survey line Buried utility Parallel survey line Survey the target area Mark out the target site using the survey grid and pro gressively traverse the perpendicular and parallel survey lines Mark the location of the utility While traversing the perpendicular survey lines search for the begin of a feature signature When the signature appears continue moving the MALA Easy Locator HDR cart forward until the full signature appears on the monitor screen Then move the cart back until the Vertical Location Cursor in the G
39. itute The control unit should not be left ON when leaving the system unin tended It should always be turned OFF when notin use The antennas should point towards the ground walls etc during meas urement and not towards the air The antennas should be kept in close proximity to the media under investigation Power supply Battery module Continuous Oper ating time Total system power consumption Operating tem perature Charger Charge time HDR Antenna Environmental Monitor Input device On Off Accessories Technical Specification Li ion 12V battery 12V 8 7Ah gt 14h 4 battery modules 24A 20 to 50 C 4 to 122F Charging 0 to 45C 32 to 110F Quick charger automatic charge cycle 100 240V AC input 3h for standard battery pack Shielded broadband 450 MHz IP 66 10 4 Color TFT Transmissive screen Single push turn knob ON by start buttons OFF by menu and buttons MALA Rough Terrain Cart RTC The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Operating Instructions The following sections walk you through more advanced modes of operation
40. lt 80 e Yellow Charged 80 100 e Green Maintenance charging Tip Always reset the intemal memory of the charger by reconnecting it to the mains supply and keep the charger connected until the indicator lamps turn off This helps optimize the char ging process Charging time for the 7Ah batteries is approximately 3 5 hours 80 100 The temperature when charging should be within 0 to 450C 32 to 1100F Do not charge the batteries in direct sunlight or when surrounding temperatures is below freez ing point Equipment handling and storage MALA Easy Locator HDR system is like other geophysical instruments composed of a number of electronic components that form a complete survey instrument For proper function it is important that the instrument is handled with care at all times All connectors should be kept clean and protected from dust and moisture When fin ishing a survey the equipment should be checked and packed properly Batteries should be kept charged if possible and if stored for longer time they should be charged occa sionally Antenna calibration While the MALA Easy Locator HDR is designed to provide many years of trouble free operation we recommend regular maintenance to to optimize the performance of the sys tem Contact MALA Geoscience for more information Software updates MALA Geoscience periodically releases software updates and upgrades for MALA Easy Locator HDR Installing these updates allows you to
41. lt Start Depth option press to enter editing mode rotate to select a value and press again to set the selection and exit editing mode Used to set the triggering interval for GPR meas urements when Time Triggering is selected for the Acquisition Mode in the Settings Menu Rotate the push turn knob to select the Time Interval option press to enter editing mode rotate to selecta value and press again to set the selection and exit edit ing mode Tip The Time Interval option is useful when uneven terrain compromises the effectiveness of wheel meas urement Note A lower value decreases the distance between GPR profile scans and vise versa Used to access the GPS Parameters option to set para meters Rotate the push turn knob to select the GPS Para meters option and press to open the GPS Parameters screen GPS Interface Unit GPS parameters Protocol NMEA 0183 Parity N Data bits 8 Stop bits GPS Interface Unit Built in Note The optional GPS add on must be activated for this function to be operational See the GPS Option section of this manual for more information about fea ture Used to set the interface type for the GPS unit connected to the MALA Easy Locator HDR Currently the three types of supported GPS units are Built in DGPS GPS parameters Protocol NMEA 0183 Parity N Data bits 8 Stop b GPS Interface Unit Built in SBAS Region When the Built in option is selected the differen
42. moved forward Press the Setting button to access the settings menu See the Setting Menu section for more information on the use of this option The Fullscreen button toggles the display to full screen mode where the menu and status inform ation is hidden and the entire display is used to display the GPR profile Note Press the push turn knob again returns the display to the default with the menu included The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter au The Background removal filter button is used to remove horizontal lines reflections caused by noise from the GPR profile By rotating the push turn knob various levels of background removal 3 can be applied The affect of the filtering can be noticed immediately and the level gradually adjus ted to create the clearest and most interpretable image possible Note Going from zero to full filter setting has the effect of progressively removing more back ground noise by average value calculations The Contrast button is used to set the contrast of the GPR profile Rotating the push turn knob increases and d
43. ng the knob either executes the currently selected menu option or sets the value of the selected parameter Signal Velocity for the soil Soil 100 m us Operating Environments Range of recommended operating environments and limitations of the equipment Maintenance and Troubleshooting The following sections cover proactive maintenance that will help protect your investment and ensure maximize your ROI Equipment Maintenance coc eee ec cece eee ceceeceeceeceeeees Monitor Software Upgrade 0 0 0 20 c seerne eccececeeceeeees Troubleshooting Frequently Answered Questions Service and Repairs 2 2 0 2 0 0 o cco eee eee ccc ecceceececeececeececceseceee Technical Support cece cece ee ccc eee cee ec cee eececcecectececseees Equipment Maintenance This section highlights some proactive measures that can be taken to help prolong the life of the MALA Easy Locator HDR and accessories as well as the application of software updates and instrument calibration that ensure the maximum possible performance from the equipment Battery maintenance and handling A 12V 8 7Ah Li ion battery is shipped with MALA Easy Locator HDR and is the recom mended power source for the equipment Under normal operating and handling con ditions this battery is capable of up to 3 5 hours of continuous operation MALA Easy Locator HDR will automatically turn i
44. practices and tips are also presented so that the most efficient and productive use can be achieved Manual Contents Introduction Equipment Handling Operating Instruc tions Technical Spe cifications Technical Support Information about this manual and basic intro duction to Ground Penetrating Radar and its applic ations Basic information regarding the handling con figuration and use ofthe product Detailed information regarding the use of the product and the interpretation of the data along with best practice and tips Technical specification for the product and included accessories Information for troubleshooting and gaining addition support for the effective use of the product Conventions Typographical The following typographical conventions are used in this document Convention Arial Bold Warning Tip Note Example Online Document The following conventions are used in this document Meaning or Use Menu commands or dia log labels Used to alert to a poten tial issue Tips and best practices Additional information regarding the current topic An example for the use of the functionality under discussion Example Draw object with frame Warning Care should be taken when remove this cable Tip Higher data pre cision can be obtained if vehicle speeds are keep below 60 mph Note The velocity can be determined either by Migration or Hyperbola fitting
45. push turn knob to accept or reject this action Note Reformatting does not affect the operating sys tem or the MALA Easy Locator HDR software 1SSD is an abbreviation for Solid State Drive which the a randon access memory device used to stor age data 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Software Upgrade Used to apply software upgrades to the MALA Easy Loc ator HDR software See Software Upgrades for more information on installing these software upgrades Restore Predefined Used to reset the resets the system settings within the Settings monitor Rotate the push turn knob to select the Restore Pre defined Settings option and press to perform a reset when experiencing problems or if you would like to reset the settings to a predefined state A confirmation dialog is displayed before reset operation is performed Use the push turn knob to accept or reject this action Note This restore is a low level reset and should be performed as the first option before executing the Restore Factory Settings option Restore Factory Set Used to restore the the original factory settings for
46. re the correction is received via GSM S signature An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature SSD SSD is an abbreviation for Solid State Drive which the a randon access memory device used to storage data Standard GPS Relatively inexpensive GPS that only uses satellites for positioning These systems generally have an accuracy around 4 m and are suitable for large scale layer mapping projects T Time Gain Time Gain applies a time varying gain to compensate for amplitude loss due to spread ing and attenuation The trace is multiplied by a gain function combining linear and an exponential gain with coefficients set by the user trace A trace is a single vertical column of GPR data representing the signal traced by a radar pulse as it travels from the instrument into the subsurface Each trace is com posed of individual samples the smallest measurement unit in the vertical dimension Because of geometrical spreading the radar signal decreases in strength with depth as 1 r2 where ris depth Index F Filtering Migration 11 G Ground Penetrating Radar 3 12 13 16 34 36 42 44 51 61 67 70 78 H Hyperbola fitting 37 51 69 71 T typographical 11
47. rn on Antenna 2 Turn on Monitor To turn the antenna and monitor off first select QUIT from the Main Menu on the monitor confirm the action by select ing YES then push the power button on the monitor and release quickly The red light will then stop blinking and the unit will also emit a click when turning off Note The antenna will automatically turn off when the monitor is powered down Note If a power cable is accidentally pulled out the MALA Easy Locator HDR components will start automatically when reconnected Height adjustment For optimal precision the antenna should be kept parallel with and as close as possible to the ground surface However higher setting of the antenna may be required when operating in grass or other adverse terrain conditions Adjust the front wheel height Pull the Spring release lever to release the wheel spring and then rotate the wheel lever to adjust the antenna to the desired height gt A Spring release lever l Wheel adjustment lever Adjust the rear wheel height Repeat the procedure for the adjusting the front wheel height taking care to ensure that the antenna remains par allel with the ground Note The wheels on the RTC are not adjustable However the height of the antenna cradle can be adjusted according to the terrain conditions Safety and Compliance According to the regulations stated in ETSI EN 302 066 1 European Tele communication Standards Inst
48. rsion Description 3 5 2013 1 0 Initial release Table of Contents 4 Preface a 8 About this Manual 2 02 eo e cece cece cece eee ec cece ec ceceeceeceeececeeeeeeees 9 Manual Contents eee ec ec cece cece ccc ecceceeceeceeececeeececeeeeeeeees 10 Conventions 2 0 2 0 00 20 c cece cece c cece cece cece cececeecceeeeececeeeceeceeeeese 11 Additional Resources 22 2 2 aa 13 Feedback e AA AA 14 Get Ready Set up GO Un a GA Nad Nba ka GN 15 MALA Easy Locator HDR Features 2 22 22 0 aaao aoaaa aoaaa aaa anan 16 Accessories and Optional Features _ 2 20 22 2 cccccccceccecccecccccccecccecceeeees 19 Unpack Inspect Register c cece ee ccc ccc ec cece ec ceceeeceeeeeceeeeceees 21 Repacking and Shipping 0 00 00 c cece cece c ccc ec cece cceeceeceeceeceeeceee 22 Registering MALA Easy Locator HDR nn nenneenerreee 22 System Assembly and Set Up nunne nn nen ene renser nnenen 23 Hardware Assembly 0 200 002 0 0 cece cece ccc ecc cece ec eeceecceececceceecceeeeeeees 23 Mounting MALA Easy Locator HDR on the optional MALA RTC Rough Ter KAKOTI LaS 24 Connecting it all up 2 cece eee cece cece cece cece ee ceceeeeeeeeeeeeeees 26 Height adjustment e eee e ccc ee cece eee eeceeeeeeceeeeceeeeeceeeees 29 Safety and Compliance aa 30 Technical Specification aan eee ec cece ccecceeceeeseeesees 31 Operating Instructions
49. scan traverse and follow the procedure described in the Data acquisition section to start collecting GPR profile data Set GPS markers When a feature signature is identified in the GPR profile during the scan reverse the MALA Easy Locator HDR cart until the Vertical position cursor is over the feature and use the push turn knob to select and press the GPS Marker button and insert a marker into the profile Continue selecting and pressing the GPS Marker button to set mark ers at points of interests while traversing the survey area Note A green circle in the GPS precision indicator next to the battery indicator indicates a high level of DGPS accuracy As the differential signal deteriorates this circle with turn yellow indicating a decreasing in the accuracy of the GPS data Con sult the GPS Parameter Menu section for more information on reading the GPS precision indicator and to change the setting for the precision ranges Warning No positioning information is available when the GPS precision indicator is either gray or red and the coordinates are set to zero EXAMPLE 1An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature 2The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating
50. se allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 5The push turn knob is fitted to MALA monitors and acts in a similar way to a computer mouse allowing the user to navigate menus and update data Rotating the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter Tip Gain is very useful for making targets appear brighter in the GPR profile this is espe cially important when searching for deeper tar gets The Hyperbola fitting button is use to perform hyperbola fitting See Hyperbola fitting for more information Note The Hyperbola fittingbutton is only vis ible when in the Started mode The Screenshot button is used to take a screen shot of the currectly displayed GPR profile See Screenshot Option for more information Note This option is only available if the Screenshot Option has been activated Sets a GPS maker in the GPR profile See GPS Option for more information Note This option is only available if the GPS Option has been activated Settings Menu Antenna HDR Mid MI Color Gray
51. take advantage of the new features and improvements that increase performance and system stability Make sure you receive information about these updates by registering your equipment and use the information in the Software Upgrades section to install the latest software update Monitor Software Upgrade The monitor software can be upgraded by downloading the latest software from the MALA Easy Locator HDR Web Page and installing onto a thumb drive Note If you are unsure of the procedure or experience difficulties upgrading the software please contact MALA Geoscience support or your local authorized dealer Download software Download the latest version of the MALA Easy Locator HDR software from the MALA Easy Locator HDR Web Page and unzip the contents onto the root directory of a thumb drive Insert thumb drive Insert the thumb drive into the MALA Easy Locator HDR monitor USB port Run upgrade Select Software Upgrade option from the System Menu screen Note If a confirmation request is displayed accept the request by selecting YES The upgrade can take several minute to install and the mon itor will re boot after installation Warning Make sure the batteries are fully charged before start ing the software upgrade and DO NOT tum off the monitor while the upgrade is in progress Troubleshooting Frequently Answered Ques tions MALA Easy Locator HDR has been design to be robust and reliable under adverse con dit
52. the full extent of the feature signature has been dis played on the monitor screen reverse the MALA Easy Loc ator HDR cart until the Vertical position cursor is aligned with the center of the hyperbola Vertical position cursor aligned with the center of the feature signature Small bodies i e around the size of the radar wavelength around 0 1 10m in diameter which have a considerably different dielectric constant than the surrounding material These point reflectors produce a hyperbola signature in the GPR profile 2An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature 3An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature Activate the Hyperbola Fitting tool Rotate the push turn knob to select the Hyperbola Fit ting button and then press the knob to activate the tool A horizontal line will appear across the screen intersecting the Vertical position cursor to form crosshairs Align the horizontal crosshair with the top of the hyperbola Rotate the push turn knob either clockwise or anti clockwise to adjust the vertical location of the horizontal crosshair until it aligns with the top of the feature signature
53. the knob either allows sequential scrolling through menu options to make a menu selection or changes selected parameter values Pressing the knob either executes the currently selected menu option or sets the value of the selected parameter 3Differential GPS uses satellites and a correction from a reference station satellite accuracy around 0 5 2 m The available systems for the Easy Locator are currently EGNOS Europe WAAS USA GAGAN India and MSAS Japan In this example a feature signature has been detec ted and a marker with a Marker ID of 69 has been inserted B Vertical position GPS precision GPSMarkerand cursor JA indicator Marker ID Ji H Exporting data and Google Earth Export data to USB thumb drive From the Setting Menu use the push turn knob to select and the press the Upload GPS marker button to upload the marker data to the USB thumb drive See the Setting Menu for section for more information on uploading GPS markers to a USB thumb drive Note The markers are uploaded in two file formats one with a gpm and the other with a km extension The gpm file is a text file containing markers information and the km file is for use in Google Earth Tip The gpm file contains the coordinate data in a format that is compatible with online mapping applications or GIS soft ware Warning Depending on the coordinate system adopted in your country it may be necessary to apply a
54. tial cor rection signal can be received in certain regions enabling better accuracy for the positioned GPS mark ers Select the correct region for your area External USB GPS GPS parameters DGPS RTK Fix Float Select the USB option to use positioning information acquired via an external USB GPS unit Once this option is selected the Select accuracy for green option will appear The Select accuracy for green option allows the user to set the tolerance for the GPS precision indicator that is displayed at the top right of the monitor s screen while in Started mode Rotate the push turn knob to select the Select accur acy for green option press to enter editing mode rotate to select a value and press again to set the selection and exit editing mode Legend for the GPS precision indicator e Gray No GPS connected e Red GPS connected but no contact with satel lites e Yellow Coordinates are received but accuracy is 1 20 meters e Green Best accuracy Example If Select accuracy for green is set to DGPS RTK Fix Float the GPS indic ator will be green when the accuracy is MB mog lessa Il ic IS SOC CO sikon RU Fix only the indicator turns green when the accuracy is 2 cm or less External GPS via the COM port GPS parameters NMEA 0183 Parity N Data bits 8 Stop bits 1 COM DGPS RTK Fix Float 9600 On 65 185125N Select the COM option to enable positioning information to be acquired
55. to save the setting and exit the System Menu screen Rotate the push turn knob to select the Save and Exit option and press to save the setting and exit the screen Glossary A Auto Gain Similar to Time Gain except the software decides the coefficients to be applied to give a response across the depth range without over amplifying the trace B background removal Background removal is used to remove horizontal and nearly horizontal features in the radargram by subtracting a calculated mean trace from all traces sample by sample It can be useful for removing the direct air wave first arrival or ringing due to poor ground conditions from the data Care must be taken in this process not to remove real linear features from the data D DGPS Differential GPS uses satellites and a correction from a reference station satellite accuracy around 0 5 2 m The available systems for the Easy Locator are currently EGNOS Europe WAAS USA GAGAN India and MSAS Japan Differential GPS DGPS Differential GPS uses satellites and a correction from a reference station satellite accuracy around 0 5 2 m The available systems for the Easy Locator are currently EGNOS Europe WAAS USA GAGAN India and MSAS Japan G Glossary term Example GPR profile Individual line of GPR data represented in a cross sectional profile view of the sub surface Ground Penetrating Radar Geophysical method that uses radar pulses to image
56. tself off when the battery voltage drops below 10V A meter showing the remaining battery capacity is displayed on the monitor screen Tip To maximize the life of the battery make sure the battery is stored fully charged MALA Easy Locator HDR can also be powered by any other external 12V DC power source Warning Power sources other than the recommended 12V 8 7Ah Li ion battery are not com patible with the power meter and the status of the battery will not be report accurately The battery can either be left in the battery box while charging or removed but always turn the system off before charging the battery A special battery pack is provided for MALA Easy Locator HDR when it is used with a RTC and this battery pack is mounted directly on the RTC handle This battery pack also uses a 12V 8 7Ah Li ion battery and the maintenance and handling is the same as for the standard MALA Easy Locator HDR system The MALA Easy Locator HDR battery charger is an automatic quick charge technology designed specifically for Li ion batteries Tip Though recharging up to 80 of the full capacity is typically very fast it is recommended to keep the battery charging until it is fully charged to help extend the battery life Note The battery charger can be left on after the battery has been fully charged where it will then automatically enter a maintenance charging mode The indicator lamp on the charger uses the following legend e Red Charged
57. ty will be easier to determine Careful planning of the survey grid is therefore essential to obtain ing accurate and reliable positioning of buried utilities 1An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature 2An inverted hyperbola that is displayed in the GPR data These hyperbolas are generally caused by the GPR signals being reflected off buried objects and therefore represent a signature of the buried feature Note When the scan is parallel to the longitudinal axis a linear feature is displayed Distance ft 832 836 840 844 i 2 i Water main parallel to scan a a AP aa BO Time ns Distance ft Detecting differing materials and sizes of features Warning Even though the GPR signal in theory is capable of differentiating between differing materials qualitative estimations of material properties based on GPR data collected in a nat ural environment is NOT advised Warning The size of a buried object can at times be estimated using the GPR data HOWEVER size estimations are NOT recommended using the simplified software tools included with theMALA Easy Locator HDR Size estimations of buried objects should only be undertaken by highly experienced GPR professionals using more advanced GPR tools Contact MALA Geoscience for more
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