Vivax Metrotech Loc3-10Tx Training Download Page 88

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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.

Identifying Distorted Fields

Summary of Contents for Loc3-10Tx

Page 1: ...V1 1 Sep 2019 Locator Training vLoc3 Pro with Loc3 10Tx and Loc3 5Tx Transmitters...

Page 2: ...setup menu Receiver locate screens Receiver display warnings Detecting the Locate Signal Locating Modes Distorted Fields Measuring Depth Measuring Depth and Current Locating Sondes Signal Direction Da...

Page 3: ...3 Product Introduction...

Page 4: ...4 vLoc3 Pro Receiver Connection lead set Ground stake Optional signal clamps Product Introduction Loc3 10Tx 10 Watt Transmitter Loc3 5Tx 5 Watt Transmitter...

Page 5: ...ry 4 Battery Charger 5 AA Alkaline Batteries 6 AA Battery Holder 7 Charger Plug 8 User Manual 1 Loc3 5Tx or Loc3 10Tx Transmitter 2 Alkaline Battery Tray 3 Ground Stake 4 Connection Lead 5 Mini USB Le...

Page 6: ...6 The Locate Signal...

Page 7: ...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: ...8 If there is no AC current flowing there will be no locate signal The Locate Signal...

Page 9: ...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...

Page 10: ...ntinually 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 8...

Page 11: ...11 Signals may use other pipes and cables to return to the transmitter because they represent a lower resistance than the ground The Locate Signal...

Page 12: ...12 Signal Sources...

Page 13: ...13 Signals used for locating can originate from a transmitter active locating or a variety of other sources passive locating Signal Sources...

Page 14: ...14 Passive Signal Sources...

Page 15: ...ansmission distribution networks 50 60Hz related harmonics Radio Radio transmissions 15 kHz 27 kHz related harmonics Application specific Signals from specific applications Cathodic protection CATV et...

Page 16: ...ways follow local state or national regulations and your own company safety and work practices Search for unknown buried lines when applying a transmitter signal is not practical to verify the presenc...

Page 17: ...e Signal Sources Power 17 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 cu...

Page 18: ...gh 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 gr...

Page 19: ...pplication 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 Passive Signal Source Cathodic Protection C...

Page 20: ...ive 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 Rad...

Page 21: ...21 Active Signal Sources...

Page 22: ...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 slig...

Page 23: ...racing 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...

Page 24: ...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 ov...

Page 25: ...connection Long distance Low distortion Medium frequency 8 kHz 33 kHz Good for pipes Cables Direct connection clamp induction Reasonable distance High frequency 65 kHz 200 kHz Induction Short distanc...

Page 26: ...on 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: ...27 Precisely locate the peak signal To pinpoint and establish the position and direction of the line Rotate the receiver until the maximum signal response is shown Active Locating...

Page 28: ...before digging Avoidance Do not use to identify or trace specific lines Active Location Use to trace identify pinpoint a buried line Use to measure the depth estimation of the buried line Use to meas...

Page 29: ...29 Loc3 Series Transmitters 5 and 10 Watt...

Page 30: ...gh menu 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 c...

Page 31: ...Transmitter 12V DC power lead used to power the transmitter from a vehicle and if rechargeable batteries are fitted will charge the transmitter at the same time Fuse this protects the transmitter cir...

Page 32: ...er 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 250...

Page 33: ...vel of the audio use the and pushbuttons to increase reduce the volume or turn the beeper off off low medium high Keep pressing the i information pushbutton the display can be toggled to show voltage...

Page 34: ...pped 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 A rechargeable battery tray is available as an...

Page 35: ...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: ...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 Do not use rechargeable batteries...

Page 37: ...nstalling 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 bo...

Page 38: ...teries pack must be connected to the transmitter Connect the mains charger to the charging socket on the side of the transmitter and connect the charger to a suitable mains socket Or if needed recharg...

Page 39: ...39 Transmitter Connection Types...

Page 40: ...one cable to the target line the other to ground Clamp induces a signal into a cable without making a direct connection Induction induces a signal into a cable or pipe by placing the transmitter on t...

Page 41: ...d increases the risk of mis locating More power reduces battery life The transmitter display will confirm how much current is being applied to the line indicating a good or bad connection A change in...

Page 42: ...ccess 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 Red lead to the line Black...

Page 43: ...e 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 Do not place it close to metallic fences or barriers Applying T...

Page 44: ...ace the clamp around the utility Connect below the grounding point to ensure the signal has a signal path between near and far ground points For best results the utility line must be grounded at each...

Page 45: ...ess 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 It may couple to other metallic lines structures adj...

Page 46: ...e 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 Applying The Transmi...

Page 47: ...smitter 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 The accuracy of depth readings may be influenced i...

Page 48: ...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 Applying The Transmitter...

Page 49: ...49 Locators do not locate buried pipes or cables Locators detect the electromagnetic signals radiating from metallic pipes and cables The Locate Signal...

Page 50: ...50 Applying The Transmitter Signal Frequency Selection...

Page 51: ...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 in...

Page 52: ...equency 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 Applying The Trans...

Page 53: ...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 Applyi...

Page 54: ...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 Applying The...

Page 55: ...resistance or poorly grounded Good for jumping insulated joints Most suited to induction Generally shorter distance Will couple to adjacent lines Good for induction short distance and badly grounded...

Page 56: ...grade 6 Battery Compartment Cover 7 Accessory socket and charging point 8 Expansion sockets for additional features such as the Bluetooth module 1 On Off Button 2 Reduce sensitivity Also scroll up whe...

Page 57: ...57 Charging the Receiver Battery...

Page 58: ...within the battery icon indicates the amount of charge remaining Green center indicates rechargeable batteries Blue center indicates alkaline batteries When batteries are low the charge remaining sec...

Page 59: ...59 Receiver Setup Menu...

Page 60: ...nsverse Graph Plan View Sonde Language Select language Imp Metric Metric or imperial Continuous Info Depth Current Off Auto Power Off 5 min 10 min Never Warnings Overhead Cable Swing Shallow Depth Ove...

Page 61: ...nsverse Graph Plan View Sonde Language Select language Imp Metric Metric or imperial Continuous Info Depth Current Off Auto Power Off 5 min 10 min Never Warnings Overhead Cable Swing Shallow Depth Ove...

Page 62: ...62 Receiver locate screens...

Page 63: ...r distortion proceed with care Red Excessive distortion treat all data and measurements with caution 5 Signal Direction forward back arrows only active with Signal Direction frequencies 6 Compass line...

Page 64: ...te 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 vec...

Page 65: ...ent 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...

Page 66: ...66 Traverse Plot Locate Screen Two plots are generated simultaneously Peak response Null response Continious depth and current readings displayed...

Page 67: ...67 vLoc3 Pro Receiver Controls...

Page 68: ...68 vLoc3 Pro Classic Locate Receiver Display...

Page 69: ...a Not so accurate as dual peak antennas and more difficult to pinpoint the line but gives a signal boost from deep lines Delta Null Uses dual null antennas to minimise the offset effects of field dist...

Page 70: ...70 Receiver Display Warnings...

Page 71: ...problem Signal overload will not cause damage to the instrument This indicates that the locator has detected a cable that is possibly less than 15cm deep Proceed with caution This indicates that the o...

Page 72: ...72 Detecting the Locate Signal...

Page 73: ...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: ...es The types of response for general locating are Peak Null Compass LR Left Right distance sensitive and Omni directional In this presentation we will cover Peak Null and Compass LR Two additional mod...

Page 75: ...75 Locating Modes...

Page 76: ...the line in congested areas Broad Peak Mode Best for tracing and pinpoint deep lines Null Mode Best for verifying the peak locate Delta Null Mode Compass LR Mode Similar use as Null mode swap to Peak...

Page 77: ...77 Modes Peak Peak mode Provides a maximum response over the line Uses two peak antennas The most accurate locate mode...

Page 78: ...78 Broad Peak Provides increased sensitivity for deep utilities But the response is broader so it may be more difficult to locate Modes Broad Peak...

Page 79: ...Peak Mode Operation Rotate the receiver to establish the direction of the line Move the receiver forward and backward across the line in a smooth action The Peak mode 79...

Page 80: ...80 Null mode Provides a minimum response over the line Uses the single bottom antenna Used to compare the position of the Peak locate Modes Null...

Page 81: ...81 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 Null Mode Operation...

Page 82: ...82 Compass Provides direction and orientation of the line Compass Feature...

Page 83: ...s 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 900 to the line Compass LR Mo...

Page 84: ...84 Sonde Locate Sondes small self contained transmitters commonly used to trace metallic and non metallic pipes ducts and conduits Modes Sonde...

Page 85: ...85 Distorted Fields...

Page 86: ...he 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 electromagn...

Page 87: ...ines 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 Badly positioned...

Page 88: ...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 apa...

Page 89: ...e ground by a known distance say 1ft 30cm Take another depth reading Using Depth Measurement to identify a vertical distorted field The depth reading should have increase by the distance you raised th...

Page 90: ...90 Measuring Depth...

Page 91: ...ocator 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 Some locators provide continuous depth this is onl...

Page 92: ...92 The three most common ways of measuring depth are Pushbutton Depth 70 Triangulation Rule 50 Triangulation Rule Measuring Depth...

Page 93: ...93 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 Measuring Depth...

Page 94: ...gain returns to 100 Without changing the gain setting move the locator to the other side until the gain reduces to 70 and mark this position The depth is equal to the distance between the two points...

Page 95: ...ce from the starting position to the 50 point you marked Return to the cable ensure gain returns to 100 Without changing the gain setting move locator to the other side until the gain reduces to 50 an...

Page 96: ...if Close to bends in the line Close to a T in the line Close to the transmitter Where the line is changing depth Where the field distortion has been identified All these factors can result in inaccura...

Page 97: ...97 Measuring Depth and Current...

Page 98: ...98 Measuring Depth and Current The depth and current readings are continuously displayed on the receiver To take a depth current measurement first pinpoint the line...

Page 99: ...99 Current readings are not influenced by depth Current readings should not be higher than the current being transmitted Using Signal Current to Help Identify The Target Line...

Page 100: ...100 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 Using Signal Current to Help Identify The Target Line...

Page 101: ...101 Locating Sondes...

Page 102: ...102 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 Locating Sondes...

Page 103: ...103 The Sonde signal gives three peaks in line with the path of the sonde And a single peak across the line of the Sonde Locating Sondes...

Page 104: ...n This indicates the position of a null signal Walk toward it and position it over the cross hairs of the screen Now rotate the locator so that the arrow is pointing forward Walk slowly in the directi...

Page 105: ...105 Signal Direction...

Page 106: ...way to travel back usually via the ground and ground stake However very often the signal will travel back along adjacent cables or pipes as these can offer an easier route As a result there can be mu...

Page 107: ...107 Signal Direction SD...

Page 108: ...l for locating multiple line installations When performing a reset take care to ensure that you have not strayed from the target line There will be a point at which it is not possible to reset and con...

Page 109: ...nsmitter 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 The receiver may...

Page 110: ...lose to the transmitter Stand facing away from where the transmitter is attached and press i pushbutton Press the return pushbutton will synchronize the system then return the unit to the locate scree...

Page 111: ...ired 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...

Page 112: ...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 i...

Page 113: ...nt 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 Press the enter pushbutton to re sync with...

Page 114: ...114 Data Logging...

Page 115: ...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 CSV generic text fi...

Page 116: ...number indicates the number of records stored To exit the screen without logging the data press the button If the GPS function is enabled the GPS coordinates will also be displayed and attached to any...

Page 117: ...117 Bluetooth...

Page 118: ...118 Bluetooth GPS Accuracy...

Page 119: ...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 da...

Page 120: ...s to scroll down to the option Bluetooth Pairing Press the Enter key Press the Enter key to commence Bluetooth search A list of available devices will be shown Scroll down to the desired device and pr...

Page 121: ...Pro needs to be paired with an external device 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 ic...

Page 122: ...122 Transferring Data from the Locator...

Page 123: ...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 Googl...

Page 124: ...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 125: ...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: ...as shown below This feature will only be available if the computer is online Clicking on the Update Now button will fetch the latest version from the server and then download it to the locator The Upd...

Page 127: ...ir application while keeping the user interface uncluttered The toolbar at the top of the screen enables the user to create configurations This will open an existing configuration file vmcfg This will...

Page 128: ...upload a selection of logs from the locator to the PC by using the controls in the upper right hand side The data in the data log can be configured before exporting The parameters that can be set are...

Page 129: ...r files to select the picture required as the startup screen The application is compatible with file formats jpg bmp png and gif Use the Download button to set the splash screen immediately or the ima...

Page 130: ...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 locat...

Page 131: ...locator is first used after configuration The menu items with a right pointing arrow can be expanded to reveal further sub menu items If the On Menu item is ticked then the item will appear on the lo...

Page 132: ...icates the page is unlocked The Splash Screen page Frequencies page and Menu Settings page can each be individually locked by double clicking on their page tab icon If a page is locked then it can onl...

Page 133: ...133 Tx Link...

Page 134: ...motely 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 o...

Page 135: ...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: ...cess 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...

Page 137: ...iver If no icon is visible this indicates that the Receiver Radio Link has not been activated While the icon on the transmitter is flashing indicating that it is waiting to connect to a receiver switc...

Page 138: ...nect 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 Select the...

Page 139: ...er should not be flashing anymore at this point A solid icon indicates that the link has been established From the main menu select Transmitter Control option that will become visible when the two dev...

Page 140: ...o 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 Transmitter battery level Use the Informa...

Page 141: ...s bar 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 Is linked to the transmitter but signal is...

Page 142: ...screen to change the Transmitter frequency remotely The Frequency indicator will flash when resetting or if an invalid frequency is requested If the Tx Rx Radio link is not being used make sure the re...

Page 143: ...an scroll up or down through the available frequencies 4 Once the wanted frequency is inside the box press f pushbutton to select or deselect the frequency An x will appear in the box for a selected f...

Page 144: ...Passive Electronic Marker System EMS...

Page 145: ...ned marker type Dual The locator is a typical pipe and cable locator while simultaneously searching for a particular marker type Plug in Play Adapter A pipe and cable locator with an add on EMS marker...

Page 146: ...s conduit stubs road crossings all types of splices buried transformers service loops street lighting bends manhole covers distribution loops CATV Cable paths fiber optic facilities buried service dro...

Page 147: ...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...

Page 148: ...r resonant frequency When the circuit is hit with a pulse of electromagnetic energy the circuit resonates causing currents to flow in the circuit Currents flowing in the EMS marker create a return sig...

Page 149: ...Systems EMS Theory vLoc3 ML Utility and Marker Locator The original pulse is created by the EMS locator above ground which energizes the transmitting coil in the EMS marker below ground vLoc3 Pro Uti...

Page 150: ...Fault Locating...

Page 151: ...plications Finding sheath to ground faults Evaluating the condition of pipe coating Holidays Fault Locating Stand Alone or Accessory A Frame Accessory A frame Plugs into the vLoc3 series receivers VM...

Page 152: ...152 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 Fault Locating...

Page 153: ...l 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 drama...

Page 154: ...154 Cable and Pipeline Fault Locating Repeat the process at 90o to the position of the fault to identify the position laterally Where the two lines cross is the position of the fault Fault Locating...

Page 155: ...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...

Page 156: ...Checking your locator 156...

Page 157: ...irm 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...

Page 158: ...ccess point for direct connection Measure and record the signal strength and depth of this conductor Mark the location of the known conductor for future reference Use this information for the locator...

Page 159: ...Locator If your instrument Is new After someone else has used your locator If you experience problems during a locate Before leaving for your job the night before in case you need to recharge When to...

Page 160: ...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 Left Right indicators and Signal Str...

Page 161: ...tter 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 D...

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 transmit...

Page 163: ...he 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 Check for loo...

Page 164: ...164 Plug the signal clamp into the transmitters output socket Checking Your Locator Checking the Inductive Signal Clamp...

Page 165: ...eiver 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 Checking Your Loc...

Page 166: ...166 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 Checking Your Locator...

Page 167: ...167 Accessories...

Page 168: ...socket 100V 250V AC to apply the transmitter signal The transmitter is protected by an isolating transformer built into the accessory Use with the receiver or the remote antenna to detect the signal...

Page 169: ...ation 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 For best results the utility line must be grounded...

Page 170: ...ach cables such as in manholes or overhead cables The extension rod is also fitted with a female thread in the handle which enables the rods to be fitted together to further extend the range To access...

Page 171: ...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...

Page 172: ...ories 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 y...

Page 173: ...nector 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 173 Accessories Live Ca...

Page 174: ...174 Accessories Ground Extension Spools Ground Extension Spools Used to extend the ground connection to a suitable grounding position...

Page 175: ...g the insulation allowing contact with the sheath The Telco Clip is constructed with an Insulation Piercing Bed of Nails and spike The Heavy Duty Clip version is more suited for the gas and water indu...

Page 176: ...cle 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...

Page 177: ...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 t...

Page 178: ...rgeable 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 If at an...

Page 179: ...etc Always use as built plans if available Never use digging machinery over marked out pipes or cables Do not give depth information unless authorized by your company Follow all Federal State and comp...

Page 180: ...ion The reduction of an electromagnetic signal from a pipe or cable Clamp or Coupler An accessory used to apply the transmitter signal to an insulated line removing the need to connect the transmitter...

Page 181: ...a variety of sources in the environment and couple to the buried and overhead lines Typical examples 50 60Hz and LF VLF radio Passive Signals A wide range of signals that radiate from buried pipes or...

Page 182: ...d on the locators dot matrix display and audibly from a loudspeaker in the receiver housing Search Sweep This describes the act of looking or sweeping for a buried line within a given area Sonde A sma...

Page 183: ...183 Vivax Metrotech Locations...

Page 184: ...18 4 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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