MPP1000 Rev A May 2006
Contents
1. If the cable fault is in a duct or conduit the loudest acoustic emission will be detected either at the conduit end or the conduit s actual breaking location When pinpointing over paving the loudest sound may be at a crack or seam Because tree roots tend to carry the sound in all directions the MPP1000 becomes especially useful Fast accurate pinpointing also means less use of the surge generator and thus less stress on service aged cables The receiver s display shows the operator the acoustic signal strength and the time delay between the electromagnetic surge and acoustic event As the detector is placed closer to the fault the acoustic signal strength increases while the time difference between surge and acoustic emission decreases When directly over the fault the time difference is at a minimum and the acoustic level is at a maximum The same procedure can be used when placing the detector at a right angle to the cable path Faults can be located more quickly by using a second detector When using two detectors the receiver s display will show a direction AVTMMPP RevA May 2006 Glossary AVTMMPP RevA May 2006 arrow that points to the detector closest to the fault When the unit is directly over the fault YD will appear The receiver s display also provides level of the electromagnetic surge a measurement of the volume of the acoustic emission and the time difference between the two events Megger AVTMMPP RevA Ma2. Input Output Connectors 1 The geophone input connectors This is where the cables from the geophones plug in AVTMMPP RevA May 2006 Megger 3 The Geophone output connector This is where the geophone cables plug into the geophone AVTMMPP RevA May 2006 Glossary MPP1000 Accessories Include Geophone AVTMMPP RevA May 2006 G eophone Detects acoustic thump Geophone Rod Screws into geophone Geophone knob Screws into rod Geophone Spike Screws into bottom of geophone Spikes are used to penetrate frozen ground This helps improve signal strength to geophone Geophone cable Connects geophone to MPP1000 unit Headphones Plugs into MPP1000 Allows the user to hear acoustic thump Strap Connects to unit Allows the user to carry the MPP1000 around their neck Batteries AA Alkaline Batteries 8 cells are needed to power unit Carrying Case For MPP1000 and all accessories Geophone Cable Megger Interconnect This section of the manual will describe how to interconnect the various accessories with the MPP 1000 unit Assembling the Geophone Locate the bottom rods and the top rods The top rods have clips on them while the bottom rods do not 1 2 3 Screw the bottom rod into a geophone Screw the top rod into the bottom rod Screw the knob into the top rod Screw the spike into the bottom of the geophone O ptional Repeat this process with the second geophone
3. If two are being used T AVTMMPP RevA May 2006 Glossary Interconnecting the unit 1 Verify the strap is on the MPP1000 2 Plug the geophone cables into the geophones 3 Plug the geophones into the geophone input connectors on the MPP1000 The geophone on the right plugs into connector No 1 and the geophone on the left plugs into connector No 2 4 Slide the geophone cables in to the clips on the top rod This will keep them clear of your feet when you are walking with the unit 5 Plug the Headphones into the headphone jack on the MPP1000 w AVTMMPP RevA May 2006 Megger Keypad and Display Functions The following section will describe the keypad and display functionality as well as the various options the MPP1000 offers Display Magnetic Pulse Strength This arrow will move left or right on the scale to indicate the strength of the magnetic pulse When the START TEST button is depressed see keypad the arrow will null out to center scale This indicates the ambient magnetic field AIl measurements are relative to this point Filter This symbol indicates whether the acoustic noise filter is active A_ closed switch indicates the noise filter is active An open switch indicates the noise filter is disabled Battery This indicates the battery strength remaining The stronger the batteries the more bars will be displayed Pulse Detector This symbol indicates when a magnetic pulse has been det
4. over as well as show the time delay between the magnetic pulse thumper s pulse and the acoustic event This time delay can be displayed in terms of time milliseconds or as a relative distance feet or meters Direction to the fault can also be determined and displayed by using two geophones The dual geophone operation will also provide indication when the operator is directly over the fault This manual will list the specifications as well as the instructions on how to use the Megger MPP1000 Pin Point Locator If you find any discrepancies in the MPP1000 or have any comments please send them to Megger via fax e mail or phone Megger Valley Forge Corporate Center 2621 Van Buren Avenue Norristown PA 19403 Attn Customer Service Fax 214 337 3038 e mail june crossland megger com Customer service 1 800 723 2861 ext 3519 For more information please visit our web site at www megger com Megger AVTMMPP RevA May 2006 2 Receiving Information Ref No AVTMMPP RevA May 2006 Contents of MPP1000 Kit 0 1 2 0 1 2 0 2 4 0 1 2 0 1 2 Part No MPP1000 6220 780 36161 36063 36172 33153 2 36063 36162 23415 AVTMMPP Description MPP1000 Unit Carrying Strap Geophones 1 or 2 units pending if single or dual were ordered Geophone Cables 1 or 2 units pending if single or dual were ordered Geophone Rods 2 or 4 units pending if single or dual were ordered Geophone
5. Knob 1 or 2 units pending if single or dual were ordered Geophone Spikes 1 or 2 units pending if single or dual were ordered Headphones AA Batteries Manual Megger When your Megger MPP1000 Kit arrives check the equipment received against the packaging list to ensure that all materials are present Notify Megger of any shortages Examine the contents for damage received during transit If any damage is discovered file a claim with the carrier at once and notify Megger or it s nearest authorized sales representative giving a detailed description of the damage AVTMMPP RevA May 2006 3 Overview Specifically designed for service industrial and power utility companies the Megger MPP1000 pinpoints faults in shielded and direct buried primary cables via a single or dual probe The unit can successfully detect both the electromagnetic and acoustic pulses emitted from an arcing fault when it is surged It can also be used with any Megger PFL Power Cable Fault Locating system surge generator or other supplier The MPP1000 without any acoustic geophone provides Detection of the presence of the electromagnetic pulse Measures the amplitude of that pulse for a rough location The single probe version provides Detection of the acoustic thump Measurement of time delay between acoustic and electromagnetic signals Relative distance calculation AVTMMPP RevA May 2006 Megger The dual probe version pr
6. AVTMMPP Rev A May 2006 MPP1000 Pin Point Locator User Manual Megger Valley Forge Corporate Center 2621 Van Buren Avenue Norristown PA 19403 2329 U SA 610 676 8500 WWW megger com MPP1000 Pin Point Locator User Manual Copyright 2006 by Megger All rights reserved The information presented in this manual is believed to be adequate for the intended use of the product If the product or its individual instruments are used for purposes other than those specified herein confirmation of their validity and suitability must be obtained from Megger Refer to the warranty information below Specifications are subject to change without notice WARRANTY Products supplied by Megger are warranted against defects in material and workmanship for a period of one year following shipment O ur liability is specifically limited to replacing or repairing at our option defective equipment E quipment returned to the factory for repair must be shipped prepaid and insured Contact your MEGGER representative for instructions and a retum authorization RA number Please indicate all pertinent information including problem symptoms Also specify the serial number and the catalog number of the unit This warranty does not include batteries lamps or other expendable items where the original manufacturer s warranty shall apply We make no other warranty The warranty is void in the event of abuse failure to follow recommended operating proced
7. E the sound going to the headphones Display This key shall toggle the display between time delay between magnetic pulse and acoustic thump and the acoustic amplitude Special Function Displaying Distance Depressing the lt ms a gt button repeatedly will toggle the display through time amplitude and distance in meters to the fault AVTMMPP RevA May 2006 21 Megger Locating the Fault Introduction The MPP1000 allows for 3 modes of operation the Magnetic Only the Single Probe mode and the D ual Probe mode Magnetic Only Mode In the Magnetic Only Mode the unit displays the strength of the magnetic field created from the applied surge The measurement is shown on the scale relative to the ambient magnetic noise In this mode no geophones are required only the MPP1000 itself is needed Directions 1 2 3 10 Place MPP1000 around neck Press Power ON button Display should illuminate Stand over cable Depress the start button Apply surge to wire under test The arrow on the scale should go to the center point This is the relative zero point of the ambient magnetic field Apply surge to wire under test The magnetic pulse detector should now flash on the display to verify the unit measured the pulse The arrow on the scale should indicate the strength of the magnetic pulse relative to the ambient magnetic field Repeat surging the wire As you get closer to the fault the magnetic strength indicatio
8. c pulse and the acoustic thump shall approach zero AVTMMPP RevA May 2006 23 Megger Dual Probe Mode In the Dual Probe Mode the unit will display the strength of the magnetic field created from the applied surge as well as the time delay between the magnetic pulse and the acoustic thump and in this mode the unit will also display the direction to the fault as well as indicate when you are over the fault The MPP1000 can also be configured to display the approximate distance to the fault in this mode as well as in single probe mode Directions 1 Assemble the G eophones See Section 6 3 Connect G eophones and headphones to unit See Section 6 3 Place MPP1000 around neck Press Power ON button Display should illuminate Place both pick ups on ground over cable D epress the start button Apply surge to wire under test Sos I ue we N The arrow on the scale should go to the center point This is the relative zero point of the ambient magnetic field 9 Apply surge to wire under test 10 The magnetic pulse detector should now flash on the display to verify the unit measured the pulse 11 The arrow on the scale should indicate the strength of the magnetic pulse relative to the ambient magnetic field 12 The unit will now display the time delay in milliseconds between the magnetic pulse and the acoustic thump 13 A left right arrow will also illuminate indicating the direction to the fault 5 14 Repeat su
9. ected Whenever this symbol illuminates then a magnetic pulse has been detected Time Delay This indicates the time delay in milliseconds between the magnetic pulse and the acoustic pulse This can also be programmed to display acoustic amplitude or approximate distance the fault Directional Arrows Left Right These arrows indicate whether the fault is to the left or the right of the user only when using geophones Directional Arrow Down This will illuminate when the user is over the fault only when using geophones AVTMMPP RevA May 2006 20 Glossary Keypad Start Test Filter IN OUT Backlight ON OFF Power ON OFF MUTE Volume DOWN Power ON OFF This button tums the MPP1000 ON and OFF The unit will automatically turn off after 1 hour Start Test This button nulls out the ambient magnetic field This button should be depressed prior to every test It can also be depressed anytime during a test to null out the ambient magnetic field Filter IN OUT This button will enable or disable the MPP1000 noise filtering If there is ambient noise in the area such as traffic noise then enabling the filters will greatly reduce the stray noise Backlight ON OFF This button will tum the backlight of the display ON and OFF for ease of viewing Volume UP This button will raise the volume going to the headphones Volume D own This button will lower the volume going to the headphones MUTE This button will MUT
10. n following instructions in this manual N otice The equipment could be impaired from improper use Read the complete manual before use AVTMMPP RevA May 2006 Megger AVTMMPP RevA May 2006 12 6 MPP1000 Operation The following section describes the operation of the MPP1000 This section will describe in a step by step manner how to interconnect the MPP1000 with its accessories as well as how to operate the unit in order to locate faults in wires Battery Installation The MPP1000 Plus unit requires 8 AA batteries If the temperature the units will operate in is from OC to 50C then Energizer E 2 AA batteries are recommended For temperatures outside this range Lithium AA batteries are recommended 1 Removethe battery cover by removing screw on battery compartment lid As shown below item1 AVTMMPP RevA May 2006 Megger 2 Insert 8 AA batteries As shown below Then re install the battery cover a 3 Sell e e Vee di r_unugu11i 1_1 D amem 520000 RL 0 100 24 10 are eve cme mann ar T i AN mam Tn oes 3 Re install battery cover Connectors and Accessories The MPP1000 unit has several input and output connectors as well as various accessories This section of the manual will outline the function of the various AVTMMPP RevA May 2006 Glossary inputs output connectors on the MPP1000 as well as outline the functionality of the various accessories
11. n will get greater AVTMMPP RevA May 2006 22 Glossary Probe Mode In the Single Probe Mode the unit will display the strength of the magnetic field created from the applied surge as well as the time delay between the magnetic pulse and the acoustic thump The MPP1000 can also be configured to display the strength of the magnetic field created from the applied surge orthe approximate distance to the fault The MPP1000 can also be configured to be used as an acoustic detector locating the fault by displaying the acoustic amplitude of the thump Directions 1 Assemble the G eophone See Section 6 3 2 Connect Geophone and headphones to unit See Section 6 3 Place MPP1000 around neck 3 4 Press Power ON button Display should illuminate i Place pick up on ground over cable 6 Depress the start button 7 Apply surge to wire under test 8 The arrow on the scale should go to the center point This is the relative zero point of the ambient magnetic field 9 Apply surge to wire under test 10 The magnetic pulse detector should now flash on the display to verify the unit measured the pulse 11 The arrow on the scale should indicate the strength of the magnetic pulse relative to the ambient magnetic field 12 The unit will now display the time delay in milliseconds between the magnetic pulse and the acoustic thump 13 Repeat surging the wire As you get closer to the fault the time delay between the magneti
12. ob spike amp cable Rods with wire clips AVTMMPP RevA May 2006 27 Part Number MPP1001 MPP1002 MPP1000 6220 780 36161 36172 Megger Description Part Number Knobs 33153 2 Wire Clips for Geophone rods 36176 Geophone Cable 36063 Geophone Spike 34302 Headphones 36162 AA Batteries 23415 AAA Batteries for Headphones 36171 Unit Carrying Case 36120 MPP1000 Manual AVTMMPP AVTMMPP RevA May 2006 28 8 Troubleshooting This section of the manual shall describe some potential problems and there causes and fixes users can experience while tracing cable faults Description Unit will not turn on No Sound from Headphones Arrows not illuminating No Reading on Display Inconsistent Acoustic Reading AVTMMPP RevA May 2006 Cause Dead Batteries MUTE button ON AAA Batteries dead Only one probe in use Faulty Geophone Cable Low Battery Faulty Geophone Faulty Geophone Cable Frozen Ground Frozen Ground 29 Correction Replace AA Batteries in MPP1000 Depress MUTE button on MPP1000 Replace AAA batteries in headphones Must use two probes to view direction arrows Replace Geophone Cable Replace AA Batteries in MPP1000 Replace Geophone Replace Cable Use Spike on Bottom of Geophone Use Spike on Bottom of Geophone Megger AVTMMPP RevA May 2006 30
13. ovides Detection of the acoustic thump Measurement of time delay between acoustic and electromagnetic signals Direction and approximate distance to the fault The instrument s receiver is contained in a lightweight compact housing that can easily be carried by a hands free adjustable strap around the neck A convenient hook on the knurled poles also allows for safe cable holding The detector s durable weatherproof enclosure allows for operation in all weather conditions A pushbutton controls the volume of the sound in the headphones and can be adjusted for operator comfort A single mute button is provided to turn off the sound from the detectors Applications The MPP1000 pinpoints faults while the cable is being surged by a surge generator or thumper An arc occurs when the high energy surge delivered from the surge generator breaks the cable fault down and a loud acoustic emission is created Since buried power cables are typically beneath 3 ft 0 9 m or more of earth or pavement this acoustic emission can go undetected without the aid of an acoustic amplification device In many situations simple acoustic amplification is not enough Because acoustic emission from an arcing fault occurs at a single point along the cable path information such as distance and direction to the fault becomes critical for fast efficient pinpointing Without this information the acoustic emission can mislead when pinpointing the fault
14. rging the wire As you get closer to the fault the time delay between the magnetic pulse and the acoustic thump shall approach zero When you are directly over the fault a down arrow will illuminate N AVTMMPP RevA May 2006 Glossary Special Functions Viewing distance to fault To display the approximate distance in meters depress the lt ms a gt button The display will toggle through time distance and amplitude Please note that the distance is only approximate it shall vary depending on soil density composition and moisture Viewing acoustic amplitude To View the acoustic amplitude just depress the display button This will toggle the display between milliseconds the time delay between the magnetic pulse and the acoustic thump and the amplitude of the acoustic pulse As you get closer to the fault the amplitude will increase The acoustic amplitude will be maximum over the fault Muting Headphones To mute the headphone simply depressthe MUTE button This will toggle the headphones ON and OFF AVTMMPP RevA May 2006 25 Megger AVTMMPP RevA May 2006 26 l Spare Parts This section of the manual lists the parts numbers for all the accessories for the MPP1000 All parts and accessories except the AA and AAA batteries need to be purchased through Megger Description Pin Pointer Kit with Single Probe Pin Pointer Kit with Dual Probe Pin Pointer Strap for Unit Geophone Assembly with rods kn
15. ures or failure by the customer to perform specific maintenance as indicated in this manual Megger Valley Forge Corporate Center 2621 Van Buren Ave Norristown PA 19403 2329 610 676 8500 Telephone 610 676 8610 Fax WWW megger com Table of Contents leale 1 03 VO TR altari 1 lee 3 RECEIVING AMAN AAA a 3 RA 5 OVA ii 5 Please 6 AO OE NE ARAS 9 Pene Sp cifications ae 9 AE ETNE ERE NN 11 SaR RR AA NO 11 Warnings and Safety Prussia uviss GN 11 Safety Precautii NS n inna ai i 11 in rar adn en 13 MP PLOOG Oplandene iaia 13 Battery Installation A E A Re 13 Connectors and Accessories iii iaia 14 Input Output Comes ee 15 MPP1000 Accessories Incl en iaia 17 Interconneti tollera 18 Assembling MEM NA 18 I terconnecting the Unit nando aci 19 Keypad and Display PUC Leticia 20 Da e 20 RE OG aan 21 Special Function spess 21 Ed de UAE rd 22 Magnetic OTE MOGs aida 22 Probe Md ada 23 Dual Probe Mode erario 24 Special FCIS ile 25 AA ERE A A A alain 27 O 27 EE A AAA AAA A AE AEA 29 Troubleshooting PEER ena tn A O REESE 29 AVTMMPP RevA May 2006 AVTMMPP RevA May 2006 1 Introduction AVTMMPP RevA May 2006 Thank you for purchasing the MPP1000 KIT from Megger This unit will allow you to pin point the location of flashing faults on underground primary cables When used with geophones the MPP1000 amplifies the acoustic emission produced by a surge generator thumper allowing you to hear the actual flash
16. y 2006 4 Technical Specifications E Pr PPP A PP Operating Modes Range Ambient Noise Cancellation Built into headphones provided Operating Temperature 14 122 F Battery Life 65 hours with alkaline batteries continuous use 85 hours with lithium batteries continuous use gt 200 hours intermittent less with backlight enabled Electrical isolation between handle and pickup AVTMMPP RevA May 2006 Megger AVTMMPP RevA May 2006 10 9 Safety Warnings and Safety Precautions WARNING Death serious injury or fire hazard could result from improper use installation of this instrument Read and understand this manual before installing this instrument Installation of this instrument MUST be performed in compliance with the National Electric Code and any additional safety requirements applicable to your installation Installation operation and maintenance of this instrument MUST be performed by qualified personnel only The National Electrical Code defines a qualified person as one familiar with the construction and operation of the equipment and the hazards involved Safety Precautions The following safety precautions MUST be taken whenever the MPP1000 will be operated Power line must be disconnected from source Wear insulated boots or rubber overshoes and insulated gloves when making circuit connections These warnings and safety precautions are to be used where appropriate whe
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