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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.

• The depth is equal to the distance 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% and mark the position.

• This distance should be the same as the first measurement taken. If not, it is a clear indication of

a distorted or bent field generally caused by signals radiating from adjacent cables.

Measuring Depth - 50% Triangulation Rule

Содержание Loc3-10Tx

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

Страница 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...

Страница 3: ...3 Product Introduction...

Страница 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...

Страница 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...

Страница 6: ...6 The Locate Signal...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 12: ...12 Signal Sources...

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

Страница 14: ...14 Passive Signal Sources...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 21: ...21 Active Signal Sources...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 39: ...39 Transmitter Connection Types...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 57: ...57 Charging the Receiver Battery...

Страница 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...

Страница 59: ...59 Receiver Setup Menu...

Страница 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...

Страница 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...

Страница 62: ...62 Receiver locate screens...

Страница 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...

Страница 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...

Страница 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...

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

Страница 67: ...67 vLoc3 Pro Receiver Controls...

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

Страница 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...

Страница 70: ...70 Receiver Display Warnings...

Страница 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...

Страница 72: ...72 Detecting the Locate Signal...

Страница 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...

Страница 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...

Страница 75: ...75 Locating Modes...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

Страница 85: ...85 Distorted Fields...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 90: ...90 Measuring Depth...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 97: ...97 Measuring Depth and Current...

Страница 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...

Страница 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...

Страница 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...

Страница 101: ...101 Locating Sondes...

Страница 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...

Страница 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...

Страница 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...

Страница 105: ...105 Signal Direction...

Страница 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...

Страница 107: ...107 Signal Direction SD...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 114: ...114 Data Logging...

Страница 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...

Страница 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...

Страница 117: ...117 Bluetooth...

Страница 118: ...118 Bluetooth GPS Accuracy...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 133: ...133 Tx Link...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 150: ...Fault Locating...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 156: ...Checking your locator 156...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 167: ...167 Accessories...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 183: ...183 Vivax Metrotech Locations...

Страница 184: ...18 4 Vivax Metrotech International Distributors...

Страница 185: ...The End Please send any comments or suggestions regarding this PowerPoint presentation to marketing vxmt com...

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