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054-140 - Rev. 2 2150GR Ground Penetrating Radar INDEX 1. INTRODUCTION................................................................................................................... 1 1.1 Scope................................................................................................................................ 3 1.2 Trademarks...................................................................................................................... 3 1.3 Acronyms and Definitions ..................
054-140 - Rev. 2 2150GR Ground Penetrating Radar FIGURES INDEX FIG. 3-1 – OVERVIEW OF THE 2150GR AND ITS COMPONENTS........................................................ 5 FIG. 3-2 – THE CONTROL UNIT ................................................................................................................ 6 FIG. 3-3 – THE ANTENNA-CONTROL UNIT CONNECTION CABLE ................................................... 6 FIG. 3-4 – THE INVERTED NETWORK CABLE ................................................
054-140 - Rev. 2 2150GR Ground Penetrating Radar 1. INTRODUCTION The 2150GR is an innovative system capable of detecting tubes and metallic and nonmetallic cables buried underground. Following standard radar principles, the 2150GR uses a high performance electromagnetic sensor equipped with electromagnetic transmitters and receivers. This system can identify shallow utilities as well as deep utilities individually or at the same time.
054-140 - Rev. 2 2150GR Ground Penetrating Radar SAFETY INFORMATION The equipment conforms to the following requirements set by EC regulations, including subsequent modifications, and to the legislation set by the member states that implement these regulations: 73/23/EEC Low Voltage Directive 89/336/EEC EMC Directive Warning: this equipment is destined for use in industrial environments (Class A apparatus).
054-140 - Rev. 2 2150GR Ground Penetrating Radar 1.1 Scope This document describes how to use the 2150GR Ground Penetrating Radar, including hardware and software components. 1.2 Trademarks WINDOWS 2000 PROFESSIONAL Microsoft Corporation /WINDOWS XP PROFESSIONAL 2150GR 1.3 Acronyms and Definitions 1.3.1 Acronyms 2150GR: digital antenna pipe detection system. 1.3.2 Definitions Single Antenna: digital pipe detection system that uses a single antenna.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 2. OVERVIEW 2.1 How to use this manual This 2150GR user manual is subdivided as follows: • Chap. 1: Introduction • Chap. 2: Overview • Chap. 3: User guide • Chap. 4: Assembly procedure • Chap. 5: The acquisition software • Chap. 6: Work procedure flowchart • Chap. 7: How to use the 2150GR 2.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 3. USER GUIDE 3.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 3.1.1 The 2150GR Control Unit The control unit has the following main functions: • To communicate with the antenna • To communicate with the notebook computer • To pilot the position sensor The control unit is fitted with the following connection ports: ¾ Power supply port (1): the power supply cable connects the battery to the Control Unit. The port is marked BATTERY.
054-140 - Rev. 2 2150GR Ground Penetrating Radar GENERAL CHARACTERISTICS OF THE CONTROL UNIT NUMBER OF CONNECTABLE ANTENNAS 1 or 2 VOLTAGE 12V +/- 10% ENVIRONMENT CHARACTERISTICS IP65 PANEL CONNECTORS LAN, BATTERY, ANT.1, WHEEL ABSORBED POWER 8W (1 antenna) OPERATING TEMPERATURE 14°F-104°F (-10 / +40 °C) 3.1.2 Antenna The 2150GR system can be used with one of the following antennas: • ATS 250 Antenna for high signal penetration. • ATS 700 Antenna for better resolution near the surface.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 3.1.3 Power supply The Control Unit is powered by a lead 12V, 12Ah battery. Lead Battery 3.1.3.1 Charge level and battery replacement When the indicator next to the power supply port lights, the system is powered. If the indicator does not light, either the cable is not connected correctly or the battery needs recharged (less than 10V). The battery has a useful life of about 12 hours.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 4. ASSEMBLY PROCEDURE 4.1 How to assemble the trolley Open the trolley Lock the handle ¾ Open the trolley from the folded position to the upright position by lifting the handle (1) shown in until the two pins (2) click into their supports (3). ¾ Rotate the tension levers (4) by rotating them out. Pull the handle (5) up to adjust it as desired. Lock the tension levers when the height is set.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 4.2 Connect the Cables 4.2.1 Connect the battery Battery and cable support ¾ Put the battery in the battery bag. Put the bag on the PVC base plate. Secure the bag to the support with the strap provided. ¾ Connect one end of the power supply cable to the BATTERY port on the Control Unit (1). Connect the opposite end to the white connector on the battery (2). ! The control unit continuously draws current from the battery.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 4.2.2 Mount the antenna and connect cables Connect the antenna ¾ Slide the antenna-trolley lock (1) onto the trolley. ¾ With the antenna under the trolley, align the trolley legs with the antenna mounts. ¾ Insert the two trolley pins (2) into the antenna mounts and secure with plastic nuts (3). ¾ Engage the antenna-trolley locking system: • Put the lever upright. • Tip the front of the antenna down and slide the lock (1) over the latch on the antenna.
054-140 - Rev. 2 2150GR Ground Penetrating Radar Antenna-radar connection ¾ Connect one end of the antenna-control unit connection cable to the antenna port (2). Connect the opposite end to the ANT.1 port (1) on the Control Unit. 4.2.3 Mount the PC notebook ¾ Secure the PC notebook to the upper plate on the trolley by aligning the hook and pile strips as shown. ¾ connect one end of the inverted network cable to the PC network port (1). Connect the opposite end to radar port (2) on the control unit.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 4.2.4 Connect the position sensor The system position sensor is located inside the right trolley wheel. The sensor measures all movements of the 2150GR. Connect sensor cable (2) to WHEEL port (1) on the Control Unit. Connect the position sensor 4.2.5 Install the sun shade ¾ Clip the plastic brackets to the sides of the computer screen. ¾ Fasten the belt in the back of the screen.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 4.2.6 Remove the trolley wheels Removing the trolley wheels If the wheels need to be removed when storing the 2150GR, press the black button labeled PRESS (shown) and pull the wheel outward. To install the wheel on the axis, push it into the support until it clicks into place. ! Remember to disconnect all cables before putting the trolley back into its storage bag.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5. ACQUISITION SOFTWARE 5.1 Basic characteristics of the notebook PC If you use a different notebook PC than the one suggested by Subsite (Panasonic CF-18), it must have the following characteristics: ¾ Pentium processor > 1.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.2 Software Installation and Configuration ! NOTE The 2150GR is shipped with GPR software already installed and configured. If it is necessary to reinstall the software, follow the steps below. Copy the contents of the 2150GR file from the installation support into the: C:\ directory. Create a shortcut to the 2150GR.exe file in the C:\2150GR\ directory. Before using the 2150GR software, configure the notebook network card.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ When the Internet Protocol window opens, enter the IP address. ¾ Enter this number in the IP address field: 192 . 168 . 200 . 150. ¾ Enter this number in the Subnet mask field: 255 . 255 . 255 . 0.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3 Operational Phases 5.3.1 Run the software The 2150GR software permits data to be acquired, saved and viewed while on the jobsite. Turn on the notebook, then launch the 2150GR.exe program clicking on the acquisition software icon. The software initializing window automatically opens.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3.2 Pre-acquisition commands ¾ Press the Start Calibration button to start calibrating the processing parameters used on the acquired data. ¾ Push the trolley a few meters then press the End Calibration button to save the parameters. ¾ Double-click the gray bar under the Menu bar (shown) to access the advanced settings menu. See section 5.3.3 Advanced Setting, for more information.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3.3 Advanced Settings Double-click the upper gray bar of the Gain Calibration window to open the advance settings window. (See section 5.3.2 Pre-Acquisition Commands.) Use the guide below to choose the settings appropriate for your survey. Advanced settings window ¾ Wheel Setting: Select the acquisition mode of the system. • Wheel driven: In this mode, the radar acquisition is set using the position sensor.
054-140 - Rev. 2 2150GR Ground Penetrating Radar Acquisition selection window ¾ Press the Start Calibration button to go back to the pre-acquisition phase. ¾ Press the End Program button to close the software. ¾ To start a new acquisition, enter a name in the text box then press the button next to it. The New Acquisition Window will open. New acquisition window ! NOTE Once a name has been given to a new survey, a data file is automatically created with the selected name in the C:\2150GR\Mission\ direct
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ Click the icon below to write notes on the scan in the text box underneath. ¾ Press the Start Scan button and push the trolley to start the acquisition. The radar map window will open.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ When a hyperbola (haystack) appears on the screen during acquisition (generated by a buried pipe or cable), stop, then move the trolley in the opposite direction. This temporarily suspends acquisition and produces a vertical line on the data screen. Identifying a target ¾ Align the trolley with the vertical line that identifies the pipe or cable on the radar map, and mark the ground in correspondence to the center point of the antenna.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ Use the Down and Up buttons to position the horizontal cursor on the peak of the chosen hyperbola. HORIZONTAL CURSOR UP/DOWN function Dual antenna display during imaging When using the Dual Antenna, radar maps for both shallow and deep radar imaging can be viewed during the acquisition phase. The software automatically displays the shallow (250MHz) radar. To view the deep (700 MHz) radar, click in the bottom right section named “Deep” and it will open.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ Press the Mark button to mark pipe and its position on the radar map. ¾ When the Marker window opens, select the appropriate icon to represent the utility you have located. These icons represent types of pipe: gas, electric cable, telephone cable, water pipe, traffic light cable, public illumination cable, sewage pipe, unknown pipe. ! The system can not identify types of pipe or cable.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3.5 Acquisition for mapping Select the Edit Parameters button in the New Acquisition window to set the starting point coordinates. Choose the following acquisition parameters. The acquisition direction as either longitudinal or transversal. When filling in this field, remember that Longitudinal (L) means the scans are performed parallel to the zero reference line (T axis), while a scan perpendicular to this line is called a Transversal scan (T.
054-140 - Rev. 2 2150GR Ground Penetrating Radar The antenna box may only be moved in one direction. It may only be pulled or pushed in the direction of increasing scanning coordinates. ! NOTE ¾ Scan Offset (m): each radar scan is characterized by an initial L and/or T coordinate. Once you have inserted the starting point coordinate for the investigation (“Coord. Value”) as a function of the type of scan, the other reference coordinate must be defined in the “Scan Offset (m)” field.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3.6 Depth calibration ¾ Press the button to open a window where you can enter the exact depth of the pipe or cable (if it is known) from another source such, as technical maps or from opening manhole covers. ¾ Otherwise, press the button to activate the following window, and Select the correct propagation speed by using the adjust the white-line curve to the shape of the hyperbola.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.3.7 Post-acquisition commands The following commands can be activated from the Acquisition Selection window: 1. 2. 3. 4. ¾ Any of the surveys saved on the computer can be deleted by pressing the button; select the survey name and press the delete button, the software requests you to confirm your choice.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ Press the button to change the name of a selected survey; write the new name then press the OK button to confirm the change. Rename a survey ¾ Press the scans in it. button to reload the last survey and continue performing ¾ Press the button to review all the scans contained in the selected survey. The first radar map of the selected survey will appear, and more markers can be added if required.
054-140 - Rev. 2 2150GR Ground Penetrating Radar ¾ Press: • to move the review line about 1” (2.5 cm) to the right; • to move the review line about 20” (50 cm) to the right; • to move the review line about 1” (2.5 cm) to the left; • to move the review line about 20” (50 cm) to the left. ¾ The lower tool bar can also be used to select and reload : • previous scans by selecting the • subsequent scans by pressing the button .
054-140 - Rev. 2 2150GR Ground Penetrating Radar An example of a radar map printout. Final printout of a radar map ¾ Press the button to close the program.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 5.4 Error messages Error messages found in the program are listed below (in italics) followed by their solutions: ¾ Network error. Retry or check hardware! Check that the network cable is connected properly to the PC and the control unit. Try restarting the program. ¾ New depth must be > 0. Please insert new value to continue ¾ New depth must be > 0. Unable to set the depth ¾ New depth missing.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 6.
054-140 - Rev. 2 2150GR Ground Penetrating Radar 7. HOW TO USE THE 2150GR The main targets when performing utilities investigations with the 2150GR consist of either extended structures (such as an interface between layers, pipes parallel to the investigation direction etc.) or quite small structures (such as pipes perpendicular to the investigation direction, cavities and rocks etc.).
054-140 - Rev. 2 2150GR Ground Penetrating Radar o For equal propagation speed, depth and type of target, the hyperbola will be wider for geometrically larger targets (for examples for wider diameter pipes). When interpreting the maps, it is a good idea to remember that the width of a hyperbola does not just depend on the geometrical size and shape of the target.
054-140 - Rev. 2 2150GR Ground Penetrating Radar area under investigation, and use it to help choose the most appropriate equipment and investigation parameters. To conclude, we have an example below of a real situation featuring two pipes side by side. This example is significant in that it shows the diagrams of the same structure (the pipe) placed perpendicularly then parallel to the direction of investigation.
054-140 - Rev. 2 2150GR Ground Penetrating Radar APPENDIX A - THE PRELIMINARY INVESTIGATION The first fundamental phase for any field survey consists in the preliminary investigation: its scope is to acquire all the necessary information for the logistics of the operation, taking into account the objectives to be performed.
054-140 - Rev. 2 2150GR Ground Penetrating Radar APPENDIX C - OPENING MANHOLES This phase is normally performed once the acquisition phase has been completed, and consists in opening the manholes present in the investigated site.
054-140 - Rev. 2 2150GR Ground Penetrating Radar APPENDIX E - CLEANING INSTRUCTIONS ! WARNING Before cleaning any external parts of the apparatus, make sure that all cables have been disconnected, including the power supply cable. If a damp cloth is used, make sure it is not too wet, to avoid any damage to the electrical components of the equipment. Wait until the equipment is totally dry before reconnecting the cables. The 2150GR should be cleaned periodically using a damp cloth.
