Page 1 Locator Training - vLoc3-Pro with Loc3-10Tx and Loc3-5Tx Transmitters V1.1 (Sep 2019)
Page 2: Table Of Contents
Table of Content • Product introduction • Measuring Depth • The Locate Signal • Measuring Depth and Current • Signal Sources • Locating Sondes • Passive Signal Sources • Signal Direction • Active Signal Sources • Data Logging • Loc3-10Tx, 10-Watt Transmitter •...
Page 3: Product Introduction
Product Introduction...
Page 4 Product Introduction Connection lead set Loc3-10Tx 10-Watt Transmitter Ground stake Loc3-5Tx vLoc3-Pro 5-Watt Transmitter Receiver Optional signal clamps...
Page 5 Product Introduction What’s in the box 1 – Loc3-5Tx or Loc3-10Tx Transmitter 1 - vLoc3-Pro Receiver 2 – Alkaline Battery Tray 2 - Mini-USB Lead 3 – Ground Stake 3 - Li-ion Battery 4 – Connection Lead 4 - Battery Charger...
Page 6: The Locate Signal
The Locate Signal...
Page 7 The Locate Signal • Is produced by the flow of alternating current (AC) which creates an electromagnetic field • This electromagnetic field radiates from the line and is known as the signal...
Page 8 The Locate Signal • If there is no AC current flowing, there will be no locate signal...
Page 9 The Locate Signal • Signals are created by the current flowing from the transmitter which travel along the conductor (line/cable/pipe) and back to the transmitter. • The current typically uses the ground to complete the current. The ground stake is used to complete the circuit through the ground.
Page 10 The Locate Signal • We think of the signal traveling from the transmitter and back to the ground stake. In fact the signal is continually changing direction, flowing back and forth. • The rate at which it changes is called frequency, so for instance, 50Hz means the signal changes direction 50 times per second, 8000Hz (or 8 kHz) means 8000 times per second.
Page 11 The Locate Signal • Signals may use other pipes and cables to return to the transmitter because they represent a lower resistance than the ground.
Page 12: Signal Sources
Signal Sources...
Page 13 Signal Sources Signals used for locating can originate from a transmitter (active locating), or a variety of other sources (passive locating).
Page 14: Passive Signal Sources
Passive Signal Sources...
Page 15 Passive Signals • Power - Power transmission & distribution networks (50/60Hz & related harmonics) • Radio - Radio transmissions (15 kHz – 27 kHz & related harmonics) • Application specific - Signals from specific applications (Cathodic protection, CATV, etc.)
Page 16 When to Use Passive Modes • Search for unknown buried lines when applying a transmitter signal is not practical to verify the presence of adjacent lines • For small localized digging (planting a fencepost or road sign) • A last check before digging Always Call Before You Dig and follow your own company’s work &...
Page 17 Passive Signal Sources - Power Power Signals • From cables carrying electric current • From pipes or cables carrying return electric current • Cables may be live but carry no current. • Pot-ended cables carry no current.
Page 18 Passive Signal Sources – LF Radio Radio Signals • Mainly generated by high power, low frequency (LF) communication transmitting towers • Buried pipes and cables act as antennas that re-radiate the signal • Radio signals travel further distances if both ends of the utility are grounded...
Page 19 Passive Signal Source - Cathodic Protection & CATV Application Specific • Some pipes and cables radiate signals that are used as a carrier signal such as cable TV (CATV), or to provide cathodic protection to pipes...
Page 20 Passive Locating - Passive Sweep • Passive locating is generally used to avoid rather than identify buried lines • Using only the receiver, sweep the area in the search pattern shown • Sweep in Power mode, then Radio mode.
Page 21: Active Signal Sources
Active Signal Sources...
Page 22 Active Signals Active signals are applied by a locator transmitter • Transmitters have one or more dedicated frequencies • The choice of frequency depends on the line being located, and the method the signal is applied • Each locator manufacturer may offer slightly different frequencies...
Page 23 When to Use Active Modes • When locating a specific line in congested areas • When tracing a specific line for any distance • When pinpointing a buried line • When a depth measurement is required Always Call Before You Dig and follow your own company’s work & safety practices Always follow local, state or national regulations and your own company safety and work practices...
Page 24 Active Signals - Applying Direct connection – red lead to the target line, black lead to ground Clamp – induces a signal into a pipe or cable, without making a direct connection Induction – induces the signal onto a pipe or cable, by placing the transmitter on the surface over the target line...
Page 25 Active Signal - Frequency Range • Low frequency - 100Hz – 1 kHz • Best for cables • Direct connection • Long distance • Low distortion • Medium frequency -8 kHz – 33 kHz • Good for pipes & Cables •...
Page 26 Active Locating • Active location is generally used to trace and pinpoint a specific buried line • Active location always requires a transmitter and receiver. * Tracing is following the path of the buried line from, or to the transmitter...
Page 27 Active Locating To pinpoint and establish the position and direction of the line: Precisely locate the peak signal Rotate the receiver until the maximum signal response is shown...
Page 28 Passive verses Active Location • Passive Location - Use to mark the location of unidentified buried lines before digging (Avoidance) • Do not use to identify or trace specific lines • Active Location • Use to trace, identify & pinpoint a buried line •...
Page 29 Loc3 Series Transmitters 5 and 10-Watt...
Page 30 Loc3 Series Transmitters - LCD and Keypad 1 - Mode Indication Icon 2 - High Voltage Warning* (output is enabled for high voltage) 3 - Frequency Being Transmitted 4 - Loudspeaker Level 5 - Battery Status 6 - Output Setting (Step) (filled box indicates current level has been reached, empty box indicates requested current level has not been achieved) 7 - Digital Read Out (mA, volts, ohms) 8 - Units (mA, volts, ohms)
Page 31 Loc3-10Tx Transmitter - Connection Block 1 - Output (Connection 2 - Output Protection (Fuse) 3 – Speaker (beeper) 4 - Battery Charging Socket & DC Input The connection block consists of: • Output (XLR) socket – for the direct connection lead and clamp. Charger socket (to charge rechargeable battery pack –...
Page 32 Loc3 Series Transmitters - Output protection • Protection • The transmitter checks the line when connected, if the line is carrying in excess of 35V, it will display “High Voltage” and not allow the transmitter to operate. • In addition the transmitter is protected by a 1.25A / 250V fuse in the event of excessive voltage or voltage spikes on the line.
Page 33 Loc3 Series Transmitters - Information Pushbutton When the “i” (information) pushbutton is pressed, the display will show the volume level of the audio; use the “+” and “-” pushbuttons to increase/reduce the volume or turn the beeper off (off – low –...
Page 34 Transmitter - Batteries The Loc3-5Tx, 5-watt transmitter is shipped with 8 x D cell alkaline batteries. The Loc3-10Tx, 10-watt transmitter is shipped with 12 x D cell alkaline batteries. Batteries are fitted into quick release trays – the alkaline is an open pack, to enable the batteries to be changed.
Page 35 Loc3 Series Transmitters - Battery Tray • Two battery trays available • Alkaline 12 x D cells • Rechargeable 12 x D cells (Ni-MH) • The label differentiate the type of batteries installed...
Page 36 Loc3 Series Transmitters – Alkaline Battery Tray Replacing the alkaline batteries • To access batteries – put a finger underneath each battery clip. Apply an upward and outward pressure to release each catch. • Replace batteries with new batteries of the same type, be sure not to mix old and new batteries. •...
Page 37 Loc3 Series Transmitters – Li-ion Battery Tray Installing the battery tray (alkaline or li-ion) Slide the transmitter onto the tray, it will locate itself in the correct position. Push up button underneath the catch – while holding that up push in the bottom of the catch. You will hear a positive click.
Page 38 Loc3 Series Transmitters - Charging the Battery 1 - Output (Connection 2 - Output Protection (Fuse) 3 - Loudspeaker 4 - Battery Charging Socket & DC Input Follow instructions detailed in the “General Safety & Care” Information section of this document. Only use the battery charger supplied.
Page 39: Transmitter - Connection Types
Transmitter - Connection Types...
Page 40 Transmitter - Connection Types There are three ways to apply the signal: • Direct connection – one cable to the target line, the other to ground • Clamp – induces a signal into a cable, without making a direct connection •...
Page 41 Applying The Transmitter Signal - Direct Connection Direct connection • Use the minimum output power needed to successfully locate the target line • Excess power may increase the risk of coupling to other lines • Using excess power can make locating more difficult, and increases the risk of mis-locating •...
Page 42 Applying The Transmitter Signal - Direct Connection Direct connection • Direct connection is suitable when there is safe access to the target line • Remove any rust or paint to ensure a good electrical connection • Place the ground stake in the ground at 90° to the cable and as far away as practical Black lead to ground stake Red lead to the line...
Page 43 Applying The Transmitter Signal - Direct Connection Direct connection • When positioning the ground stake – to minimize coupling to other lines • Do not place it close to other lines • Do not place it the other side of adjacent lines •...
Page 44 Applying The Transmitter Signal - Signal Clamp Using a Signal Clamp • Use when you cannot direct connect to a utility, or insulated sheath or for cable identification. • Place the clamp around the utility. • Connect below the grounding point (to ensure the signal has a signal path between near and far ground points).
Page 45 Applying The Transmitter Signal - Induction Induction • Allows signal to be applied to a line without access to the line • The applied signal is generally less than the other connection methods (as the signal has to travel through ground to reach the line) •...
Page 46 Applying The Transmitter Signal - Induction Induction • Place the transmitter over and in line with the target line at a known point (but not on an access point such as a manhole, handhold or pedestal) • Ensure the transmitter is oriented correctly...
Page 47 Applying The Transmitter Signal - Induction Induction • Move at least 15ft (5m) away from the transmitter (the signal from the transmitter has an airborne element which you will locate) • Do not place on top of a manhole cover or metal plate (the signal will not penetrate to the line) •...
Page 48 Applying The Transmitter Signal - Active Sweep Active Sweep • One other technique that can be undertaken with induction is an Active Sweep • One person carries the transmitter in induction mode • Another person 25ft (8m) away carries the receiver...
Page 49 The Locate Signal Locators do not locate buried pipes or cables Locators detect the electromagnetic signals radiating from metallic pipes and cables...
Page 50: Applying The Transmitter Signal - Frequency Selection
Applying The Transmitter Signal – Frequency Selection...
Page 51 Applying The Transmitter Signal – Frequency Selection Frequency Selection • Loc series transmitters can transmit several different frequencies • Different manufacturers use different frequencies • The best frequency for the job will vary depending on the way the signal is applied (direct connection, signal clamp or induction)
Page 52 Applying The Transmitter Signal – Frequency Selection Frequency Selection • The best frequency for the job will vary depending on the way the signal is applied (direct connection, signal clamp or induction) • The distance from the transmitter • The type of line being located...
Page 53 Applying The Transmitter Signal – Frequency Selection Frequency Selection • Low Frequency (100Hz – 1 kHz) • Cables, insulated pipes and cable identification • Use by direct connection • Long distance • Less coupling to adjacent lines • Travels the farthest on cables, insulated pipe and cable identification...
Page 54 Applying The Transmitter Signal – Frequency Selection Frequency Selection • Medium Frequency (8 kHz – 33 kHz) • General purpose • Cables and pipes • Used by direct connection, clamp or induction • Moderate distance • Good all-around locating frequencies using any method of applying the signal...
Page 55 Applying The Transmitter Signal – Frequency Selection Frequency Selection • High Frequency (65 kHz – 200 kHz) • High resistance or poorly grounded • Good for jumping insulated joints • Most suited to induction • Generally shorter distance • Will couple to adjacent lines •...
Page 56 Product Introduction Parts of the receiver vLoc3-Pro Keypad vLoc3-Pro Receiver 1 - Display and Keypad 1 - On/Off Button 2 - Model and Serial Numbers 2 - Reduce sensitivity. (Also scroll up when in User Menu) 3 - Battery Retaining Cover 3 - Increase sensitivity.
Page 57: Charging The Receiver Battery
Charging the Receiver Battery...
Page 58 Charging the Receiver Battery The vLoc3-Pro can be used with alkaline batteries or rechargeable battery pack. The central illuminated section within the battery icon indicates the amount of charge remaining. • Green center indicates rechargeable batteries • Blue center indicates alkaline batteries •...
Page 59: Receiver Setup Menu
Receiver Setup Menu...
Page 60 Setup Menu • About - Software Revision • Speaker Volume - Off, Low, Medium, High • Sound Configuration – Active, Radio, Power • Backlight - Off, Low, Medium, High • Frequency - Select most used frequencies • Locate Perspective – Classic, Vector, Transverse Graph, Plan View, Sonde •...
Page 61 Setup Menu - Most Used Frequencies • About - Software Revision • Speaker Volume - Off, Low, Medium, High • Sound Configuration – Active, Radio, Power • Backlight - Off, Low, Medium, High • Frequency - Select most used frequencies •...
Page 62: Receiver Locate Screens
Receiver locate screens...
Page 63 Classic Locate Screen 1 Percentage signal strength (mirrors the bar graph setting) 2 Peak level indicator 3 Gain setting 4 Bar graph signal strength indicator (changes colour depending on distortion level) Green: - low distortion. Blue: - Minor distortion, proceed with care. Red: - Excessive distortion, treat all data and measurements with caution.
Page 64 Vector Locate Screen 1 - Frequency selected 2 - Signal current 3 - Vertical distance to target 4 - Horizontal distance to target 5 - Scaling (adjust with +/- keys) 6 - Shows plan view of target 7 - Cross section view that shows vectors to target...
Page 65 Plan View Locate Screen 1 - Depth and current readings 2 - Frequency selected 3 - Target line 4 - Lines of confidence (closer these are to the target line indicates more confidence) 5 - Arrow indicates direction to move towards line, it only shows when the distance to the target line is far away...
Page 66 Traverse Plot Locate Screen Two plots are generated simultaneously • Peak response • Null response • Continious depth and current readings displayed...
Page 67 – Receiver Controls...
Page 68 Classic Locate Receiver Display...
Page 69 Classic Locate - Screen Icons Classic Screen/Antenna Configurations Peak - Dual horizontal antennas giving largest signal over the line with sharp accurate results. Less affected by distorted signals. Null - Vertical antenna giving minimum signal over the line with sharp response but more affected by distorted signals.
Page 70: Receiver Display Warnings
Receiver Display - Warnings...
Page 71 Receiver Display - Warnings Warnings can be displayed in real time across the display This a very unusual situation and is usually caused by operating very close to a power transformer or placing the unit very close to a transmitter in the Induction mode. Moving slightly away from the interfering signal will cure the problem.
Page 72: Detecting The Locate Signal
Detecting the Locate Signal...
Page 73 Detecting the Locate Signal • Because of these “return” current, the electromagnetic fields surrounding the line can be distorted by return current on other metallic lines.
Page 74 Modes - The response to the electromagnetic field • There are several antennas in a locator, these can be used in different combinations. • Each combination, known as mode, provide different responses. • The types of response for general locating are Peak, Null, Compass LR, Left/Right distance sensitive and Omni directional.
Page 75: Locating Modes
Locating Modes...
Page 76 Receiver - Operating Modes Select the locating mode: • Peak Mode • Best for tracing and pinpoint the line in congested areas • Broad Peak Mode Best for tracing and pinpoint deep lines • Null Mode • Best for verifying the peak locate •...
Page 77 Modes - Peak Peak mode • Provides a maximum response over the line • Uses two peak antennas • The most accurate locate mode...
Page 78 Modes - Broad Peak Broad Peak • Provides increased sensitivity for deep utilities • But the response is broader, so it may be more difficult to locate...
Page 79 Peak Mode Operation • The Peak mode Rotate the receiver to establish Move the receiver forward and the direction of the line backward across the line in a smooth action...
Page 80 Modes - Null Null mode • Provides a minimum response over the line • Uses the single bottom antenna • Used to compare the position of the Peak locate...
Page 81 Null Mode Operation • The Null mode – will not indicate the direction of the line using the null signal strength alone. The left/right arrows and compass help to orientate the locator to the line.
Page 82 Compass Feature Compass • Provides direction and orientation of the line...
Page 83 Compass LR Mode Operation • The Compass LR mode – will indicate the direction of the line, the left/right arrows & compass help you orient the locator to the line. Peak signal when over the line Null signal when at 90 to the line...
Page 84 Modes - Sonde Sonde • Locate Sondes, - small self-contained transmitters commonly used to trace metallic and non-metallic pipes, ducts and conduits...
Page 85: Distorted Fields
Distorted Fields...
Page 86 Detecting the Locate Signal • The locator receiver contains sensors that detect the electromagnetic field (the signal). • These sensors are known as “antennas”. • The signal induces a “response” in the antennas by electromagnetic induction.
Page 87 Distorted Fields The magnetic field (the signal) radiating from buried lines can be distorted by the presence of adjacent metallic conductors or other signals. This is caused by: • Signals induced from the target line to other lines • Commonly bonded structures •...
Page 88 Identifying Distorted Fields Use Peak & Null modes to identify distorted fields • On a clean undistorted field the Peak and Null locate response will line up • If distortion is present, the peak and null locate response will no longer line up Typically, the greater the distortion, the further apart these locate responses will be.
Page 89 Identifying Distorted Fields Using Depth Measurement to identify a vertical distorted field • Locate the line & measure depth with the locator resting on the ground • Lift the receiver off the ground by a known distance (say) 1ft (30cm) •...
Page 90: Measuring Depth
Measuring Depth...
Page 91 Measuring Depth • Depth & signal current can also be measured using a locator • Depth is measured to the center of the signal – in the case of a large diameter pipe, this would be considerably different to the top of the pipe •...
Page 92 Measuring Depth The three most common ways of measuring depth are: • Pushbutton Depth • 70% Triangulation Rule • 50% Triangulation Rule...
Page 93 Measuring Depth Pushbutton Depth All locators with pushbutton depth work in a similar way: • Position the locator over the cable using the “Peak” mode • Press the depth button...
Page 94 Measuring Depth - 70% Triangulation Rule Triangulation Depth – 70% rule • Uses Peak mode (two antennas). • Locate the cable, set the gain to 100%. • Without changing the gain setting move locator to one side until the gain reduces to 70%, mark this position.
Page 95 Measuring Depth - 50% Triangulation Rule Triangulation Depth – 50% rule • Use Broad Peak mode (single antenna) • Locate the cable, set gain to 100%. • Without changing the gain setting move locator to one side until the gain reduces to 50% and mark the position. •...
Page 96 Measuring Depth and Current Do not rely on depth and current measurements made if… • Close to bends in the line • Close to a “T” in the line • Close to the transmitter • Where the line is changing depth •...
Page 97: Measuring Depth And Current
Measuring Depth and Current...
Page 98 Measuring Depth and Current To take a depth & current The depth and current readings are measurement, first pinpoint the line continuously displayed on the receiver.
Page 99 Using Signal Current to Help Identify The Target Line • Current readings are not influenced by depth. • Current readings should not be higher than the current being transmitted.
Page 100 Using Signal Current to Help Identify The Target Line • Current readings will reduce gradually unless • There is a “Tee” in the line • A large fault in the insulation • You are on the wrong line!
Page 101: Locating Sondes
Locating Sondes...
Page 102 Locating Sondes • Sondes radiate a signal with a different shape to the signals radiated from cables. • Because the signal radiates differently, a specific Sonde mode is used on the receiver.
Page 103 Locating Sondes • The Sonde signal gives three peaks in line with the path of the sonde. • And a single peak across the line of the Sonde.
Page 104 Locating Sondes Insert the activated sonde into the pipe. Push the sonde 10 to 12 feet (3 to 4m) into the pipe. Walk slowly in the direction of the arrow. A double circle will appear on the screen. This indicates the position of a null signal.
Page 105: Signal Direction
Signal Direction...
Page 106 Signal Direction (SD) (Available for vLoc3-Pro with SD and vLoc3-ML models only) Signal Direction, SD Mode is used to verify if the line being located is the target to which the transmitter has been connected. When a transmitter is connected to a target line, the signal travels along it and finds the easiest way to travel back, usually via the ground and ground stake.
Page 107 Signal Direction (SD)
Page 108 Signal Direction (SD) - Transmitter Setup • Connect the transmitter to the target line using a direct connection only. • If several lines are commonly bonded the Signal Direction will carry through to the other lines. This is useful for locating multiple line installations. •...
Page 109 Signal Direction (SD) - Transmitter Setup • Turn the transmitter and receiver on and set both to : • SD-USA – if in North America or any territory where the power system is 60Hz. • SD-EUR – if in Europe or any territory where the power system is 50Hz •...
Page 110 Signal Direction (SD) - Synchronize • To synchronize the receiver to the transmitter at the beginning of a survey, pinpoint the line very close to the transmitter. • Stand facing away from where the transmitter is attached and press “i” pushbutton. •...
Page 111 Signal Direction (SD) - Using • Proceed to locate, trace, pinpoint as required ensuring at all times the top portion of the compass bezel remains illuminated. • If at any time top portion of the bezel ceases to be illuminated and the bottom portion of the compass bezel lights up –...
Page 112 Signal Direction (SD) - Using • The top or bottom portion of the compass bezel together with the SD icon and start flashing – this indicating that synchronization with the transmitter has deteriorated and a reset is required.
Page 113 Signal Direction (SD) - Using • Re-trace your line back to a point where a solid signal direction is obtained. • Precisely pinpoint the line and stand with your back to the direction of the transmitter • Press the “ i ” pushbutton •...
Page 114: Data Logging
Data Logging...
Page 115 Data Logging The vLoc3-Pro has an internal memory that can be used to store locator data. Available storage size is four Gigabyte which relates to many thousands of records. Records can be saved as • ESRI SHP files (SHP, DBF, SHX) •...
Page 116 Data Logging Records stored by the user whenever the “+” button is pressed when in the “Information” screen. To store a record first locate a point of interest. Hold the vLoc stationary over the target and press the “i” pushbutton. When in the depth and current screen, press the “+”...
Page 117: Bluetooth
Bluetooth...
Page 118 Bluetooth - GPS Accuracy...
Page 119 Bluetooth The vLoc3-Pro receiver can be fitted with a Bluetooth communications accessory. This allows communication with external GPS and or Dataloggers. The Bluetooth option can be retrofitted and can be ordered at a later date and installed by the user.
Page 120 Bluetooth icon is grey this means it is not fitted. Black icon indicates the option is fitted. Switch on the external device. Switch on the vLoc3-Pro and enter the User setup menu by a long press on the “i” button. Use the “+” and “-” keys to scroll down to the option “Bluetooth Pairing”.
Page 121 (see previous section on Bluetooth devices). Once paired with an external device, the vLoc3-Pro will await valid GPS data from the external device. The GPS icon will turn green when a valid GPS signal is detected. This can take from a few seconds to a few...
Page 122: Transferring Data From The Locator
Transferring Data from the Locator...
Page 123 Transferring Data from the Locator to a Computer To transfer data it is necessary to use the vLoc3-Pro Configurator Tool MyLocator3. This is a free program that can be downloaded from the Vivax-Metrotech web site at www.vivax-metrotech.com To view Google files it is first necessary to install the Google Earth application to your computer.
Page 124 Transferring Data - MyLocator3 App MyLocator3 Updates Page When a locator is first connected to the PC, the updates page will be displayed and this will show the locator variant type along with the locator serial number and the running firmware version in the upper left-hand box.
Page 125 Transferring Data - MyLocator3 App MyLocator3 Updates Page When a locator is first connected to the PC, the updates page will be displayed and this will show the locator variant type along with the locator serial number and the running firmware version in the upper left-hand box. The upper right-hand box will show information about the MyLocator3 PC application.
Page 126 Transferring Data - MyLocator3 App Locator Firmware update Each time a locator is connected to the PC, it’s firmware version is checked against the latest version available on the Vivax-Metrotech server and the user is notified if an update is available as shown below. This feature will only be available if the computer is “online”.
Page 127 Toolbar The vLoc3-Pro locator can be configured so that features can be switched on or off. This enables the user to tailor the instrument to meet the needs of their application while keeping the user interface uncluttered. The toolbar at the top of the screen enables the user to create configurations.
Page 128 Transferring Data - MyLocator3 App Data Logging Clicking on the Data Logging tab will display information about the state of the attached locator’s data log contents. The data log contents can be stepped-though by using the controls on the right-hand side. The user can upload a selection of logs from the locator to the PC by using the controls in the upper right-hand side.
Page 129 Transferring Data - MyLocator3 App Splash Screen An image can be loaded as a splash screen when the locator is switched on. The size of the image should be 480 by 272 pixels. To insert your own start up screen first click on the “Open” button. Then browse your files to select the picture required as the startup screen.
Page 130 Transferring Data - MyLocator3 App Frequencies Page The “Frequencies” page will allow the user to refine which frequency modes are available when the locator F-key is pressed and which frequencies appear on the locator menu.
Page 131 Transferring Data - MyLocator3 App Menu Settings The “Menu Settings” page allows the user control over which menu items appear on the locator and also the initial setting of the menu item when the locator is first used after configuration. The menu items with a right pointing arrow can be expanded to reveal further sub-menu items.
Page 132 Transferring Data - MyLocator3 App Supervisor Lockouts This feature is available to anyone with a dongle (contact Vivax-Metrotech for the purchase of a dongle).When a dongle is connected to your computer via a standard USB socket, the icons for the “Splash Screen” page, “Frequencies”...
Page 133 Tx-Link...
Page 134 Loc3 Series Transmitters – Tx-Link The Loc3 series transmitters can be remotely operated with most vLoc3 series receivers. This is an optional feature and requires that the radio link option be installed in both receiver and transmitter The range of the radio link depends on having a clear “line of sight”...
Page 135 Loc3 Series Transmitters – Tx-Link Press the “i” button repeatedly to scroll to until the “RECEIVER LINK DISABLED” option is displayed. Press the “+” key to enter the Receiver Link menu.
Page 136 Loc3 Series Transmitters – Tx-Link Press the “+” or “-” key to highlight the “ENABLE” option, then press the “F” key to start the process. The display will show the message “WAIT” until setup is complete. An ID number-will now be displayed at the bottom of the screen for identification purposes. The transmitter is now waiting to connect to a receiver.
Page 137 While the icon on the transmitter is flashing, indicating that it is waiting to connect to a receiver, switch on the vLoc3-Pro receiver and enter the user menu by pressing and holding the information button. Scroll down the menu options until Transmitter Link is highlighted.
Page 138 While the icon on the transmitter is flashing, indicating that it is waiting to connect to a receiver, switch on the vLoc3-Pro receiver and enter the user menu by pressing and holding the information button. Scroll down the menu options until Transmitter Link is highlighted.
Page 139 Loc3 Series Transmitters – Tx-Link After a short scan, the available devices will be displayed. Highlight the one to be selected and press the return button. Press the information button to return to the main menu. The “Beacon” icon on the transmitter should not be flashing anymore at this point.
Page 140 Loc3 Series Transmitters – Tx-Link Also shown is the: • Radio link signal strength, in this case 40% • Output mode, in this case direct connection • Output current, in this case 100mA • Beeper volume setting, in this case level 2 •...
Page 141 Loc3 Series Transmitters – Tx-Link When in the Locate screen the status of the Link is displayed in the Status bar. The various indications of the connection status are: No radio module or it is disabled (Always disable in the User Menu when not in use) No link and no signal No link and poor signal No link but good signal...
Page 142 Loc3 Series Transmitters – Tx-Link While the Transmitter and Receiver are linked, changing the Receiver Frequency will automatically result in a similar change to the Transmitter frequency, so there is no need to re-enter the menu screen to change the Transmitter frequency remotely. The Frequency indicator will flash when resetting or if an invalid frequency is requested.
Page 143 Most Used Frequencies (Frequency Selection) Setup 1. Press the “i" pushbutton four--six times (based on the mode that transmitter is in), until get to the "Frequency menu" sub-menu. Loc3-5Tx Transmitter Loc3-10Tx Transmitter 2. Screen will show a list of frequencies available, with the central one in a box. 3.
Page 144: Passive Electronic Marker System (Ems)
Passive Electronic Marker System (EMS)
Page 145 Electronic Marker Systems (EMS) - Types There are different types of EMS Locators – Dedicated • The locator is dedicated to locating a predefined marker type – Dual • The locator is a typical pipe and cable locator while simultaneously searching for a particular marker type –...
Page 146 Types of EMS Marker EMS markers are used to mark below ground points of interest such as splice joints or buried valves. They are also used to mark the position and route of non-metallic services such as plastic pipes. EMS markers are used to distinguish different •...
Page 147 Electronic Marker Systems (EMS) - Theory An EMS marker consists of a coil of wire with a resonating capacitor • To imagine the resonance consider the audio equivalent • Imagine a glass being tapped. The glass will resonate at the natural frequency of the glass in a similar way the EMS marker electronically resonates at its resonant frequency.
Page 148 Electronic Marker Systems (EMS) - Theory An EMS marker consists The coil and capacitor are chosen Currents flowing in the EMS of a coil of wire which is so that they have a particular marker create a return signal. connected in parallel resonant frequency.
Page 149 Electronic Marker Systems (EMS) - Theory • The original pulse is created by the EMS locator above ground which energizes the transmitting coil in the EMS marker below ground. vLoc3-ML vLoc3-Pro Utility and Utility Locator Marker Locator with MLA...
Page 150: Fault Locating
Fault Locating...
Page 151 Fault Locating - Stand Alone or Accessory A-Frame A-Frame fault locators Typical applications • Finding sheath to ground faults • Evaluating the condition of pipe coating (Holidays) Accessory A-frame – Plugs into the vLoc3 series receivers VM-510FFL+ Line locator and fault locator...
Page 152 Fault Locating Disconnect any ground connections other than the transmitter ground to encourage the signal to return through the fault Set both the receiver and transmitter to FF mode...
Page 153 Fault Locating Cable and Pipeline Fault Locating • As the fault is neared, the arrow on the locator display will point forward and the dB reading increase • As the fault is passed the arrow will flip to point in reverse. When the spikes of the A-frame are exactly straddled the fault, the dB reading will drop dramatically and the arrows will either, both be on, or will flip forwards and backwards.
Page 154 Fault Locating Cable and Pipeline Fault Locating • Repeat the process at 90 to the position of the fault to identify the position laterally. Where the two lines cross is the position of the fault.
Page 155 Fault Locating Cable and Pipeline Fault Locating • If it is suspected that there is just one fault on the line, the A-frame can be used to estimate the magnitude of the fault. • Position the A-frame approximately one meter from the earth stake. Note the dB reading which will be similar to the maximum dB reading at the fault.
Page 156: Checking Your Locator
Checking your locator...
Page 157 Checking your locator Before Starting Your Locate, confirm that your locator is properly functioning by running a few checks • First, establish your own check site at convenient place, such as your home or workplace • Then, choose a "Known Conductor" in your check site...
Page 158 Checking Your Locator Choose a "Known Conductor" at your site The known conductor will be your benchmark for measurement accuracy, choose a: • Utility at approximately 3’/1m in depth (the average depth of a buried utility) • Utility with an easy access point for direct connection •...
Page 159 Checking your Locator When to Check Your Locator Before leaving for If your instrument your job – the night Is new before in case you need to recharge If you experience After someone else problems during has used your a locate locator...
Page 160 Checking Your Locators Check the Batteries • Check both the receiver and transmitter battery levels 15% of locators sent in for service need new batteries. When the battery power is low in the receiver or transmitter, recharge or replace them Check the Operating Features •...
Page 161 Checking Your Locators Check the Left/Right indicator and signal strength • Apply the transmitter signal onto your known conductor • Turn on the receiver • Move the receiver back & forth over your known conductor • Look for your known centerline when over the conductor and signal strength Check the Depth Readings •...
Page 162 Checking your Locator Check for loose or broken connection lead wires • With the transmitter off, plug in the direct connection leads • Short the leads by attaching them to each other • Turn on the transmitter...
Page 163 Checking your Locator Check for loose or broken connection lead wires • Turn on the receiver, make a note of the signal strength • Pull on the wires near the attachment points (socket and clips) • A signal fluctuation is an indicator of loose or broken connection lead wires...
Page 164 Checking Your Locator Checking the Inductive Signal Clamp • Plug the signal clamp into the transmitters output socket...
Page 165 Checking Your Locator Checking the Inductive Signal Clamp • Turn on the transmitter • Turn on a receiver • Make a note of the receiver's signal strength • Pull on the wires near the attachment points (clamp and socket) • A signal fluctuation is an indicator of a loose or broken clamp wire...
Page 166 Checking Your Locator • Turn both the receiver and transmitter on • Wave the receiver in the direction of the transmitter • Check the Left/Right indicators and signal strength functions on the receiver...
Page 167: Accessories
Accessories...
Page 168 Accessories - Live Plug Connector (LPC) • Apply the Live Plug Connector to a normal household power socket (100V – 250V AC) to apply the transmitter signal • The transmitter is protected by an isolating transformer built into the accessory •...
Page 169 Accessories - Signal Clamps • Use when you cannot direct connect to a utility, or insulated sheath or for cable identification. • Place the clamp around the utility. • Connect below the grounding point (to ensure the signal has a signal path between near and far ground points).
Page 170 Accessories - Clamp Extension Rod • The extension rod is fitted with a 10mm screw thread. This male thread will screw into the handle of the signal clamp and will enable the clamp to be attached too hard to reach cables such as in manholes or overhead cables.
Page 171 Accessories - Sondes • Sondes are small battery powered self contained transmitter. • Sondes are inserted into non-metallic pipes or ducts to make them locatable or to find blockages. • Higher frequency (33 kHz) are used for non-metallic pipes. • Some low frequency Sondes (512Hz/640Hz) will transmit through cast iron pipe.
Page 172 Accessories - Remote Antenna • Remote Antenna • Used to identify cables in trays or congested areas • Using the remote antenna: – Place the remote antenna onto the cable – Locate the cable with the strangest source of your signal...
Page 173 Accessories - Live Cable Connector Live Cable Connector For use on live cables up to 480V AC 60/50Hz. Operating frequencies: 8.192k Hz, 32.768k Hz, 8.44k Hz SIS. For best results, connect across a phase cable and independent ground.
Page 174 Accessories - Ground Extension Spools • Ground Extension Spools Used to extend the ground connection to a suitable grounding position.
Page 175 Accessories - Specialty Connection Leads Direct Connection Lead with Telco Clip The Telco Clip version is suitable for telephone cable where the user cannot access the sheath of the cable. The “bed of nails” part of this clip can be clamped onto a cable breaking the insulation allowing contact with the sheath.
Page 176 Accessories - Loc-10Tx, 12V DC Vehicle Power Lead • 12V DC Vehicle Power Lead Use the 12V DC, 30 ft (10m) lead to power the transmitter from a vehicle. If it is intended to apply the transmitter to a target line at high output levels and long periods, it may be useful to power the transmitter using the 12V DC vehicle power lead.
Page 177 Accessories - Receiver Vehicle Charging Lead • Vehicle Charging Lead The 12V vehicle charging lead will charge a locator’s Li-Ion rechargeable battery pack from an automotive cigarette lighter socket. This 12ft/4m lead makes it easy to stay charged up while on the go.
Page 178: Battery Care & Maintenance
Battery Care & Maintenance The following will help you extend the life of your rechargeable batteries • Only use the correct charger provided by Vivax-Metrotech • When you first get the units – charge them for a minimum of 8 hours, during that period do not switch off or disconnect •...
Page 179: Safety
Safety • Locators are precision well engineered tools, however the • environment we locate in is not perfect. • Always be aware of the influence of distorted fields • Always take account of visual clues (manholes, pedestals etc.) • Always use “as built plans” if available •...
Page 180: Glossary
Glossary Active Locate A locate where a transmitter is used to apply a signal to a buried pipe or cable, the position of which is then located by a receiver tuned to the same frequency. Active Signal A signal applied by the locator transmitter to a buried line. Typical this is a very precise frequency.
Page 181 Glossary Display The information visually available on the dot matrix display. Line A generic term for any buried pipe or cable. Null A minimum response to a buried line. Passive Locate A locate where the receiver searches for a wide range of signals that radiate from buried pipes or cables.
Page 182 Glossary Pinpoint Using a receiver to identify the exact position of a buried line. Target Line The buried pipe or cable to be located. Trace Using a locator to following the path of a buried line. Response The indication that the receiver gives which is caused by the signals it is receiving. This can be visual, audio or both.
Page 183: Vivax-Metrotech Locations
Vivax-Metrotech Locations...
Page 184 Vivax-Metrotech International Distributors...
Page 185 The End Please send any comments or suggestions regarding this PowerPoint presentation to marketing@vxmt.com...

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