Operating Instructions Easyloc RxTx Easyloc RxTx + Easyloc Basic
Contents
1. Parameter Power supply Operating time Temperature range e Operation e Storage Weight Dimensions W x H x D Type of protection Dust and water protected Value 10 x IEC R6 AA cell Mignon 40 hours for intermittent use with alkaline batteries 20 C in accordance with IEC EN 60068 1 20 C bis 55 C 30 C bis 70 C 2 0 kg 99 x 660 x 252 mm in accordance with IEC EN 60529 IP 67 from the lower edge of the receiver up to the lower edge of the battery compartment and IP 56 for all parts above this delineation The following parameters are specified for the Rx Rx and the Basic version of the receiver Parameter Frequency ranges e Range 1 radio e Range 2 power network e Range 3 transmitter Sensitivity e Range 1 radio e Range 2 power network e Range 3 transmitter Depth determination not available for Easyloc Basic e Depth range e Resolution e Accuracy assuming interference free signal transmission Range 1 radio Range 2 power network Range 3 transmitter 2 Value 15 kHz to 23 kHz 50 Hz 60 Hz 100 Hz 120 Hz only Rx 32 768 kHz 8 44 kHz only Rx at a depth of 1 m gt 20 pA gt mA gt 5 pA at 32 768 kHz gt 40 pA bei 8 44 kHz of a probe 0 3 m o 5m 0 3m 7m 12 in 16 ft 12 in 23 ft 0 1m 0 1m 20 20 5 up to 2 m 10 up to 2 m 20 2m 5m 20 2m 7m M2. The depth of the metallic conductor probe exceeds the measuring range 5 m 7 m Depth measurement cannot be performed The depth of the metallic conductor amounts to less than 30 cm 1 ft Such conductors must be specially marked in order to prevent damage during construction The receiver was moved too far to the left or right while making a rough estimate Move in the opposite direction until the following symbol appears Proceed as described in step 8 on the previous page 4 30 Megger 4 2 6 Masking Out Lines Masking out lines Under certain circumstances lines at lower depths can hide deeper adjacent lines thus making it more difficult to locate them In such cases the transmission characteristics of the Easyloc Tx transmitter can be fully utilised and the lines which have already been located can be masked out Line with weaker Line with good inductive coupling inductive coupling How to proceed Follow the steps listed below in order to locate lines by masking out adjacent lines Step 1 Action Use the Easyloc Rx and Easyloc Tx to locate and pinpoint a buried line see section 4 2 3 General site surveying With the Easyloc Rx rested on the ground straight above the located line ask a colleague to place the Easyloc Tx on its back see picture nearby the line path at least 15 m away from the receiver Slide the Easyloc Tx across the line until the signal strength bargraph is lowest indicating
3. Megger Operating Instructions Easyloc RxTx Easyloc RxIx Easyloc Basic Easyloc CAM i Edition 7 12 2013 www easyloc i nfo Reference number 128311567 Megger Consultation with Megger The present system manual has been designed as an operating guide and for reference It is meant to answer your questions and solve your problems in as fast and easy a way as possible Please start with referring to this manual should any trouble occur In doing so make use of the table of contents and read the relevant paragraph with great attention Furthermore check all terminals and connections of the instruments involved Should any question remain unanswered or should you need the help of an authorized service station please contact Megger Limited Archcliffe Road Kent CT17 9EN T 44 0 1304 502100 F 44 0 1 304 207342 E uksales megger com Hagenuk KMT Kabelmesstechnik GmbH R deraue 41 D 01471 Radeburg Dresden T 49 35208 84 0 F 49 35208 84 249 E sales sebakmt com Seba Dynatronic Mess und Ortungstechnik GmbH Dr Herbert lann Str 6 D 96148 Baunach T 49 9544 68 0 F 49 9544 22 73 E sales sebakmt com Megger USA Valley Forge Corporate Centre 2621 Van Buren Avenue Norristown PA 19403 USA T 1 610 676 8500 F 1 610 676 8610 E DEanfrage megger com Megger All rights reserved No part of this handbook may be copied by photographic or other means
4. CAT IV 300 V Limit values and standards Megger The following limit values and standards are applicable for the Easyloc RxTx location system Parameter Sinusoidal vibrations Peak acceleration Frequency Free fall Max height packaged Relative humidity Atmospheric pressure Protection class meets IEC EN 61140 2 9 Value in accordance with IEC EN 60068 2 6 20 m s 10 Hz 150 Hz in accordance with IEC EN 60068 2 32 80 cm weight up to 10 kg max 93 at 30 C max 4 kPa III Megger Intended use Versions of the receiver Features 3 System overview The Easyloc RxTx location system is designed for the uncomplicated and user friendly determination of the location orientation and depth of metallic lines e g cable and pipe lines It can be used to probe areas for unknown lines or for locating specific lines In addition to the standard version Easyloc Rx there are three more versions of the receiver with the following features e Easyloc Rx with an extended frequency selection e Easyloc CAM exclusively used for location of probes e g camera probes in specific frequency ranges 32 768 kHz 512 Hz 640 Hz e Easyloc Basic version without depth measurement Whenever the term Easyloc RX is used without further qualification in the course of this document the described functionality applies for all versions of the receiver The Easyloc RxTx is distinguished by the fol
5. Off switch By quickly pressing this button the Easyloc Tx can be switched on or off All appropriate LED s blink when the Easyloc Tx is on depending on operating function Signal type button This button is used to switch between continuous and pulsed signal output Jacks for connecting accessories These jacks are used to create a direct galvanic connection with the target line or to create a connection using a special connection set e g EasyClamp transmitter clamp or house connection set Mode button This button is used to switch between inductive and direct signal coupling galvanically or via transmitter clamp Signal strength button This button is used to select one of two signal strength levels see Technical Data Signal characteristics Mode of operation Frequency selection only Tx 4 Using the location system 4 1 Connection and initial use of the Easyloc Tx transmitter 4 1 1 Transmitter signals and modes of operation The type and strength of the output signal can be configured by the user as follows to meet the specific requirements of either the line to be located or the site to be surveyed Symbol HH be Signal type Pulsed signal As it is more easily distinguished from other signals the pulsed signal is helpful for locating when there is interference within the frequency range of the transmitter This also helps to conserve the batteries Depth measurements canno
6. handbook thoroughly The manufacturer shall not be liable for any injury or damage to personnel or property which arise due to non observance of the safety precautions contained in this handbook Country specific standards and regulations should also be observed It is important to observe the general electric regulations of the particular country in which the device will be setup and used as well as current national regulations for accident prevention and current company internal regulations work operating and safety regulations The use of original accessories ensures system safety and reliable operation The use of other parts is not permitted and shall result in termination of the warranty Repair and maintenance work may only be performed by Megger or authorised service partners Megger recommends having the system inspected and maintained at a Megger service centre once a year Megger also offers its customers on site service Please contact your respective service centre as needed The Easylox Rx can only locate lines which emit a signal Therefore it is important to always exercise extreme caution when digging even if no lines have been found Please note that electromagnetic fields in the vicinity of the receiver may negatively affect the sensitivity of the device Receiver all versions Receiver Rx Rx and Basic 2 Technical data Megger The following parameters are specified for all Versions of the receiver
7. of operation for the receiver ccccceccceccceececeeeeceeeeseeeeseeeeaeeesseeeseeeesaeeeseesaeeesaeeess 4 23 4 2 2 2 Regulating the sensitivity level to match the reception signal strength ccceeeeee 4 24 4 2 2 3 Handling the receiver and locating the line cece ceeccceeceeeeeeeeeeseeeeseeeeseeeeaeeeeseeesaeeees 4 25 429 General ste SURV CYING esseiden as is aiaa 4 26 4 2 4 Determining the direction of a JINC ccc ccc eccsecceeeeeeceeceeeseeeeeeseceeeseeseeeeeeseeeaeeees 4 27 4 2 5 Determining the depth of a line not available for Easyloc BaSIC cccccccceeeeeeees 4 28 4 2 6 Masking Out LINGS ccc ccccc cece eeceec asec eeeeeeeeeseeceeeseeseeceeeseeeeeeseeeseeseeseeseeeseeseesaes 4 31 4 2 7 Functional test of the reCe iver ccccccecceccecceeceeseeceeceeceeeeeeeeeseeeeeeeeseeeeeeeeeeeteeeseees 4 32 o INARI ACT ANC Coors ce tees sees oes eves eens shee eee seca ne eens hese pasate emeseenneene eens 5 34 1 5 Megger Safety precautions Working with products from Megger Repair and maintenance Lines without a signal Electromagnetic interference 1 Notes on safety This handbook contains basic instructions for the initial use and operation of the Easyloc RxTx For this reason it is important to ensure that the handbook is available to personnel authorised and trained to use the device at all times Any personnel who will be using the devices should read the
8. pressing the button Foot ft will be used as the unit for length Metre m will be used as the unit for length Press the 2 button to save the settings The changes will remain in effect even after the receiver is switched off and back on again Megger 4 2 1 2 Changing the receiving frequency Proceed as follows to change the receiving frequency of operation modes with more than one possible frequency Step 1 Action Select the operation mode in which you want to change the frequency by pressing the 3 button while the receiver is switched on Switch the receiver off Press and hold the button Briefly press the button while continuing to hold down the button until an audible signal is heard The selectable frequencies are now visible in the display Range 1 Range 2 Range 3 Use the and buttons to switch between the frequencies The active setting is marked with a black background Press the 2 button to save the settings The changes will remain in effect even after the receiver is switched off and back on again 4 22 Megger 4 2 2 The basics of locating lines with the receiver 4 2 2 1 Modes of operation for the receiver Basics of passive line If a Easyloc Tx transmitter is not available a site can also be probed by means of location passive line location The Easyloc Rx receiver is capable of detecting radio signals in the frequency range between 15 kHz to 23 kHz as well as p
9. switched on or off The Easyloc Rx will switch off automatically if no functions are carried out within 7 minutes of being switched on Display Provides a visual indication of reception strength line depth mode of operation battery status and menu items Button 1 Depending on the status of the system this button is used to e Manually decrease reception sensitivity e Start measuring depth not available for Easyloc Basic Button 2 Depending on the status of the system this button is used to e Adjust reception sensitivity e Start measuring depth not available for Easyloc Basic Button 3 Depending on the status of the system this button is used to e Select the mode of operation receiving frequency e Manually increase reception sensitivity 3 12 Megger 3 2 Easyloc Tx transmitter Features The Easyloc Tx transmitter is distinguished by the following features e Inductive coupling of the signal using the integrated antenna or transmitter clamp e Direct galvanic coupling of the signal using connected equipment such as the measurement cable and power socket adapter e Two step adjustable transmission power e Selectable signal output continuous or pulsed Transmitter control panel The following illustration shows the control panel of the Easyloc Tx Control element 1 Description Battery status indicator When the battery status LED blinks in red the batteries need to be replaced On
10. that the transmitter is directly above the line which thus is masked out Note that adjacent lines may not be parallel with the first cable route so sweep the receiver around in a circle about 10 m 15 m radius from the transmitter with the handle pointing towards the transmitter Any metallic lines within 2 5 m of the transmitter will be coupled with the transmitted signal Pinpoint and determine the direction of any buried lines see section 4 2 2 3 Handling the receiver 4 31 Megger Introduction How to proceed 4 2 7 Functional test of the receiver If problems or strange measuring results occur during a line location procedure it may be helpful to check the functionality of the receiver using the integrated self test This test may provide information about possible malfunctions of the instrument Preferably the self test should be performed in an interference free environment without live cables Proceed as follows to perform a self test Step 1 Action In order to access the self test the receiver must be in off state The test can be started by pressing and holding 2 followed by for at least 3 seconds If the self test is successfully accessed the display should show the software and hardware versions of the receiver components MCULSS ERALS S5 DSP 88 SAO 85 DST es Press the 2 button to start the self test If the test is successfully passed without any problems the display shows
11. the 2 button has to be pressed for about 2 seconds The following indicator will appear in the display Now the sensitivity of the receiver can be decreased by one percent by pressing the button or increased by one percent by pressing the button This process can be accelerated by holding down the respective button To exit the manual sensitivity level adjustment menu the 2 button has to be pressed for two seconds By pressing the button only short the depth measurement process will begin see section 4 2 5 Determining the depth of a line 4 24 Basics for handling the receiver Megger 4 2 2 3 Handling the receiver and locating the line In order to be able to determine the position and orientation of a metallic conductor the following rules should be internalised and applied when locating lines As shown in the following illustration the receiver should always be held in front of the body in an upright position and as close to the ground as possible When the transmitter is brought directly over a metallic conductor the maximum signal strength will be measured If the receiver is moved away from the conductor towards the side and is not rotated while doing so the signal will drop off proportionately hi i The alignment of the receiver in relation to the orientation of the conductor the antenna being the starting point of alignment has the following effects on the reception signal strength e Receiver in
12. the Easyloc Tx transmitter is coupled onto the conductor to be measured For this procedure the transmitter s signal has to be continuous not pulsed see section 4 1 1 Transmitter signals and modes of operation In addition to this precondition automatic depth measurement will only function when the mode of operation of the receiver is set to TRANSMITTER It will not function if set to POWER GRID or RADIO If these preconditions are not met a rough estimate of the depth may be made using the manual method If the depth of a non metallic pipe needs to be determined the measurement has to be made with aid of a probe e g FlexSonde see section 4 1 2 4 Signal coupling in non metallic pipes In order to accommodate the transmission characteristics of a probe the Easyloc Rx receiver has a special depth measurement mode which has to be activated through the system settings see section 4 2 1 Changing the system settings As a result the way a depth measurement can be performed depends not only on the active operation mode but also on how the depth measurement mode is set Transmitter or Probe A symbol in the lower left of the display indicates which mode is currently accessible Symbol Description For determining the depth of a probe which has been pushed into a non metallic pipe For determining the depth of a line the signal of an active transmitter is coupled onto ell ee bd For determining the depth of a line which carr
13. unless Megger have before hand declared their consent in writing The content of this handbook is subject to change without notice Megger cannot be made liable for technical or printing errors or shortcomings of this handbook Megger also disclaims all responsibility for damage resulting directly or indirectly from the delivery supply or use of this matter Megger Terms of Warranty Megger accept responsibility for a claim under warranty brought forward by a customer for a product sold by Megger under the terms stated below Megger warrant that at the time of delivery Megger products are free from manufacturing or material defects which might considerably reduce their value or usability This warranty does not apply to faults in the software supplied During the period of warranty Megger agree to repair faulty parts or replace them with new parts or parts as new with the same usability and life as new parts according to their choice This warranty does not cover wear parts lamps fuses batteries and accumulators Megger reject all further claims under warranty in particular those from consequential damage Each component and product replaced in accordance with this warranty becomes the property of Megger All warranty claims versus Megger are hereby limited to a period of 12 months from the date of delivery Each component supplied by Megger within the context of warranty will also be covered by this warranty for the remaining period o
14. attery strength as well If battery capacity falls below 10 of the threshold value an audible warning signal is given and the current status of the batteries is shown in the upper part of the display In order to replace the ten 1 5 V mignon AA batteries the battery housing must be removed e g using a coin as described in the following illustrations 5 34 Changing the batteries in the transmitter A CAUTION Changing the floor cap on the receiver Megger The batteries in the transmitter have to be replaced as soon as the red LED battery indicator starts to blink Should this occur while the user is busy locating a line with the receiver he she will be informed of the weak batteries via the reception signal Type of Normal signal Signal when batteries are signal weak a o E Before changing the batteries any connection leads have to be disconnected from the transmitter Only batteries of the same type and size as recommended see Technical Data are to be used There is danger of explosion if batteries are mishandled or incorrectly replaced In order to change the six batteries both screws on the back of the transmitter must be e g with the aid of a coin turned through 1 4 turn 1 and the battery tray must be pulled 2 Please note that all the batteries are fitted in the same direction The plastic floor cap which prevents the tip of the receiver from being damaged can be easily replaced wi
15. dicular position to the probe i e the handle of the receiver has to be hold at right angle to the probe e Practice locating the probe or FlexSonde head before pushing it into the drain or duct e Strongest signal will be detected when the receiver is above and perpendicular to the probe as shown in the picture Specifics of probe The signal transmitted by the probe results in three signal maxima on the ground location surface level Typically there is a smaller maximum in front of the actual signal maximum and one behind it For this reason it should be always evaluated whether there are further signal maxima in front of or behind the detected signal maximum An accurate depth determination can only be performed directly above the actual highest signal maximum If the receiver is operated in automatic sensitivity level adjustment mode these lower signal maxima are usually masked out Megger 4 1 3 Initial use of the transmitter How to proceed Follow the steps listed below in order to prepare the transmitter to search for lines in conjunction with the receiver Step 1 Action Connect the transmitter to the line to be located using the most suitable method or place the transmitter on the site to be searched see section 4 1 2 Options for direct and inductive signal coupling Press to switch on the transmitter Select the desired output signal using the e and m buttons see section 4 1 Connection and initia
16. egger Receiver CAM Transmitter Easyloc Tx The following parameters are specified for the CAM version of the receiver Parameter Frequency ranges e Range 1 power network e Range 2 transmitter e Range 3 transmitter Sensitivity 50 Hz 60 Hz 32 768 kHz 512 Hz 640 Hz Depth determination not available for Easyloc Basic e Depth range e Resolution e Accuracy assuming interference free signal transmission Range 1 power network Ranges 2 and 3 transmitter Value 50 Hz 60 Hz 912 Hz 640 Hz 32 768 kHz at a depth of 1 m gt mA gt 5 pA gt 100 HA 03m 5m 0 3m 7 m 12 in 16 ft 12 in 23 ft 0 1m 0 1m 20 5 up to 2 m 20 2m 5m 20 2m 7m 10 up to 2 m The following parameters are specified for the Easyloc Tx transmitter Parameter Transmitted power switchable 32 768 kHz 8 44 kHz only Tx Frequency Power supply Operating time Temperature range e Operation e Storage Weight Dimensions W x H x D Type of protection Dust and water protected Measurement category 2 8 Value 0 1W 0 5 W 05W 2W 32 768 kHz 6 x IEC R20 D cell Mono 40 hours for intermittent use with alkaline batteries 20 C in accordance with DIN EN 60068 1 20 C bis 55 C 30 C bis 70 C 1 7 kg 260 x 255 x 140 mm in accordance with IEC EN 60529 IP 54 in accordance with IEC EN 61010 1 CAT Il CAT Ill 440 V
17. er with a transmitter Automatic depth determination when used together with a transmitter not available for Easyloc Basic Semi automatic depth estimation in passive signal modes not available for Easyloc Basic Sensitivity level can be adjusted automatically or manually Lighted display for use in dim environments Components of the The following illustration shows the components of the Easyloc Rx receiver receiver Item Description Control panel with display see page 3 12 Speaker with volume control The speaker plays back various acoustic signals e g beeps with modulating pitch relative to the signal strength Quieter Louder When the receiver is switched on the volume is set at a standard level The receiver will only start with the volume at a different level if the volume has been manually increased before switching off the receiver Headphone jack To connect headphones with a 3 5 mm plug connector Battery compartment Floor cap This replaceable floor cap serves to protect the housing Megger Display and controls The following illustration shows the control panel and display for the Easyloc Rx Control element 1 Description Light sensor Light sensitive photo cells to automatically regulate the display lighting The display lighting can be manually activated for one minute by briefly covering the light sensor On Off switch By quickly pressing this button the Easyloc Rx can be
18. f time but for 90 days at least Each measure to remedy a claim under warranty shall exclusively be carried out by Megger or an authorized service station This warranty does not apply to any fault or damage caused by exposing a product to conditions not in accordance with this specification by storing transporting or using it improperly or having it serviced or installed by a workshop not authorized by Megger All responsibility is disclaimed for damage due to wear will of God or connection to foreign components For damage resulting from a violation of their duty to repair or re supply items Megger can be made liable only in case of severe negligence or intention Any liability for slight negligence is disclaimed Since some states do not allow the exclusion or limitation of an implied warranty or of consequential damage the limitations of liability described above perhaps may not apply to you Table of contents 1T MOUS on Safely sescca AEAEE Aa EA 1 6 Z e aoe ie A E E E E E rere 2 7 3 System overvieW ssssssnssnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nannan 3 10 3 1 Easyloc RX TO CONV saaana eh cas edd a naa E a EEA A EEA AEA ERTA 3 11 3 2 EQS VOC IX rans OSE sei a EEA OER EEEE AE EE tints AAE E E 3 13 A USING MCIOCIUNON SYSE aen E 4 14 4 1 Connection and initial use of the Easyloc Tx transmitter 0 0nnanononnenononnnnensnnnrnnsrrnnns 4 14 4 1 1 Transmitter signals a
19. ies radio signals or grid frequency signals Even after the depth has been successfully determined all excavation work should be done with caution This is particularly important if a rough estimate of the depth was made as this can result in even greater deviations 4 28 Megger How to proceed Follow the steps below to determine the depth of a metallic conductor Step 1 Action If the depth of the conductor will be determined with the aid of the Easyloc Tx transmitter couple the transmitter s signal onto the metallic conductor in such a way that there is as little signal loss as possible see section 4 1 2 Options for direct and inductive signal coupling and switch on the transmitter see section 4 1 3 Initial use of the transmitter Do not forget to set the transmitter to continuous signal not a pulsed signal when measuring depth Press to switch on the receiver Select the desired mode of operation see section 4 2 2 1 Modes of operation for the receiver by pressing the button The symbol for the currently selected mode of operation is shown in the lower right hand corner of the display With a steady grip hold the receiver perpendicular to the position of a known metallic conductor e g above a location which was marked during the site survey The signal strength bargraph should show zero see section 4 2 3 General site surveying In doing so the tip of the receiver should touch the ground Rotate
20. l can be coupled onto a specific cable with virtually no loss The following illustration shows an example of direct coupling If the lines being located are energised the following five safety precautions should be taken before connecting the transmitter WARNING Five safety precautions Disconnect power Secure against reconnection Check for presence of current Make earth connection and short circuit Cover or block access to adjacent components which are energised Megger Principles of direct coupling The following table explains various basic principles of direct galvanic coupling Application Principle of coupling Single wire lines or pipes with or without insulation against earthing The distance between the earth spike and the ends of the connected lines should be as great as possible There is a danger of the return current k flowing through the earth into adjacent lines which could result in their path being followed Single wire cable with metallic screen and earthing insulation Short circuit between internal conductor and screen at the end of the cable with earthing at the beginning and end of the cable as well If the earth connections made are G unfavourable the current in the internal conductor and the return current in the screen will cancel each other out Under certain circumstances this can prevent the cable from being detected Alternatively a connection without an earth connection can al
21. l use of the Easyloc Tx transmitter page 4 14 A green LED indicates that the respective setting is active Select the desired mode of operation using the button see section 4 1 Connection and initial use of the Easyloc Tx transmitter page 4 14 Result In Direct mode an LED next to the symbol indicates how good the connection is to the connected line e Green blinking good low resistance connection e Alternating red and green sufficient connection e Red blinking poor no high resistance connection As described in chapter 4 2 Locating lines with the Easyloc Rx receiver use the Easyloc Rx to locate metallic conductors 4 20 Megger 4 2 Locating lines with the Easyloc Rx receiver 4 2 1 Changing the system settings 4 2 1 1 Depth measurement settings not available for Easyloc Basic Proceed as follows to change the settings Step 1 2 Action Press and hold the L button Briefly press the button while continuing to hold down the button until an audible signal is heard The following image is display Now one of the following depth measurement processes may be selected by pressing the button Select this symbol if you want to determine the depth of a probe gt _ which has been pushed into a non metallic pipe Select this symbol if you want to determine the depth of a line the signal of an active transmitter is coupled onto Now a unit of length used by the system may be selected by
22. line with the conductor gt maximum signal strength 4 25 Megger Requirement Basics of site surveying How to proceed 4 2 3 General site surveying A general site probing urgently needs to be conducted and there is inaccurate or no information available as to the location and orientation of metallic conductors on a site planned for construction e g excavation work When a site is to be searched for unknown conductors a systematic approach should be taken The following picture illustrates how to proceed Carry out a passive survey in POWER GRID and RADIO modes using a grid search pattern to cover the site and locate conductors in all directions If the site will be surveyed with the aid of the Easyloc Tx transmitter used on induction the position of the transmitter should be changed by at least one metre and 90 after the first sweep of the site and the site should be probed again in the same manner The minimum spacing of 15 m between the transmitter and receiver must always be maintained Follow the steps below when probing a site for unknown metallic conductors Step Action 1 If the site will be searched with the aid of the Easyloc Tx transmitter the transmitter needs to be configured as described in section 4 1 3 Initial use of the transmitter before proceeding 2 Press to switch on the receiver 3 Select the desired mode of operation see section 4 2 2 1 Modes of operation for the receiver by pressi
23. ling should only be opted for in cases where the line being located is not easily accessible see section 4 1 2 1 Direct coupling on cables and pipes and section 4 1 2 2 Coupling using special connection accessories While taking measurements make sure that a distance of at least 15m is always maintained between the receiver and transmitter in order to prevent the coupling of the transmitter s signal through the air When searching for unknown lines at a site the position of the transmitter has to be changed at least once by one metre and 90 It is also a good idea to position the transmitter at visible cable ends such as at distribution boxes or light poles Megger 4 1 2 4 Signal coupling in non metallic pipes Signal coupling in non With the aid of the FlexSonde GOK5O R the transmitter s signal can be transmitted metallic pipes through non metallic pipes as shown in the picture below Alternatively any other active probe e g a camera probe with adequate transmitting frequency see Technical Data can be located using the receiver For a detailed description please refer to the manual of the respective product Both the FlexSonde GOK50 R and an active probe are available as accessories for the Easyloc RxTx location system see section System overview page 3 10 When locating non metallic pipes the following guidelines should be observed e Contrary to the line location a probe location has to be performed in perpen
24. lowing features e Robust construction for use in poor weather and in harsh environments e Simple user friendly operation concept with a minimum number of controls e Reliable battery status indicator Scope of delivery The Easyloc RxTx location system is supplied in three different configurations The Configuration Equipment Easyloc Rx receiver Alligator clip Earthing spike IEC R6 AA cell Mignon following table shows the scope of delivery for the various configurations Easyloc RxTx system Easyloc Rx Easyloc Tx incl transmitter and receiver receiver set transmitter set ee ee ee e ee NINI Nylon bag Accessories a es a Megger offers a wide range of accessories for the Easyloc RxTx system which can be ordered through your distributor e Transmitter clamp 100 mm for the inductive coupling of a signal into exposed lines e House connection set for transmission of the house connection lines through the mains power supply telephone or cable TV connection e FlexiSonde emitting fibreglass cable for locating non metallic pipes e Probe battery powered mini transmitter for locating non metallic pipes e Nylon bag exclusively for the receiver 3 1 Megger Easyloc Rx receiver Features The Easyloc Rx receiver is distinguished by the following features passive signal modes for locating lines without the Easyloc Tx transmitter active signal modes for locating lines probes when used togeth
25. nal is represented by this bargraph scale These are relative values which are based on the sensitivity level set in the receiver The triangles A Y above and below the scale are a visual marker for maximum values They move towards the right as long as the signal strength increases and continue in this direction until it either levels off or decreases The maximum marker remains in this position for 3 seconds and thus provides the user with a helpful visual aid for determining the maximum signal strength 2 Sensitivity display gain level in The sensitivity level set in the receiver which coincides with the total spectrum which the receiver is capable of processing is represented by this scale The higher the level of sensitivity is set the more capable the receiver is of detecting weaker signals The numeric display above the bars shows the utilisation factor as a percent Regulating the sensitivity Should the scale for reception signal strength bargraph provide virtually no level indication or the display is completely utilised either a manual or automatic adjustment of the sensitivity level has to be made To start an automatic sensitivity level adjustment the 2 button has to be pressed once The sensitivity level of the receiver will be automatically adjusted so that the strength of the signal currently being received will be optimally displayed fill half of the scale To start a manual sensitivity level adjustment
26. nd modes of operation nannannnnannnnnnnnnnnnnnnnnnrnnnnnrnrnnrnnrernnnne 4 14 4 1 2 Options for direct and inductive signal coupling cccecccecceeeceeceeeeeeeeeeeeeeeeaeeees 4 15 4 1 2 1 Direct coupling on cables and pipes 0 cece ecccseccceeeeceeeeseeeeseeeeaeeeseeeeseeeeseeeeseeeeseeeseeeess 4 15 4 1 2 2 Coupling using special connection ACCESSOFMIES cccecccceeceeeeeeaeeeeeeeeseeeeseeeeseeesseeeseeeess 4 17 41 23 INGUCUIVE signal COUDIING osrccesnsesocete nsactanassossosesacceunniasedeentaet cogs ioasunreaadeasenteesdocniedeandtiescanus 4 18 4 1 2 4 Signal coupling in non metallic PIPES ccc eeccceeeeceeeseeeeseeeeaeeesaeeeseeeseeeeseeeeaeeesaeess 4 19 4 1 3 Initial use of the transmitter cc ccc secs eee eeeeeeeeseeceeceeeeeeseeseeeeeseeeseneeeeeeeeteeseees 4 20 4 2 Locating lines with the EaSyloc RX receiver cc ccc ccceccecceccece eee eceeaeeeeeeeeeeceeseeseeeeeeeaeees 4 21 4 2 1 Changing the System settings c ccc cece cecceeeceece eee eeceeceeeseeeeeeseeseeeseeseeeeeeseeeseesaes 4 21 4 2 1 1 Depth measurement settings not available for Easyloc Ba SIC cccccccccsecceceeeeeeeeeeeees 4 21 4 2 1 2 Changing the receiving freQuency cccccccccceeccseeeeeeeeseeeeseeeeseeeeseeeeeeeeseeeeseueeseeeeseeesaeeess 4 22 4 2 2 The basics of locating lines with the receiver cccccceccecceeceeeceeeeeeceeeeeeseeeeeeseeees 4 23 4 2 2 1 Modes
27. ng the s button The symbol for the currently selected mode of operation is shown in the lower right hand corner of the display 4 Pace off the site as previously described and make a grid search of the site Adjust the sensitivity of the receiver as needed if the signal level is too strong weak see section 4 2 2 2 Regulating the sensitivity level to match the reception signal strength 5 When a conductor is located pinpoint the strongest signal see section 4 2 2 3 Handling the receiver and mark the location 4 26 Megger 4 2 4 Determining the direction of a line How to proceed Follow the steps below to determine the orientation of a metallic conductor Step 1 Action If the direction of the conductor will be determined with the aid of the Easyloc Tx transmitter couple the transmitter s signal onto the metallic conductor in such a way that there is as little signal loss as possible see section 4 1 2 Options for direct and inductive signal coupling and switch on the transmitter see section 4 1 3 Initial use of the transmitter Press to switch on the receiver Select the desired mode of operation see section 4 2 2 1 Modes of operation for the receiver by pressing the button The symbol for the currently selected mode of operation is shown in the lower right hand corner of the display Hold the receiver perpendicular to the position of a known metallic conductor e g above a location which was marked du
28. ower signals in the frequency range between 50 60 Hz The following pictures illustrate how each of the signals couple onto conductors buried in the ground Modes of operation for The two options explained above for passive location together with the options of the receiver active location with a transmitter or a probe transmitting a signal with an appropriate frequency result in the following modes of operation Symbol Mode of operation RADIO For locating cables which are carrying VLF reradiated radio signals not available for Easyloc CAM POWER GRID For locating mains power supply cables through which current with a grid frequency is flowing TRANSMITTER ce in hoes ame For locating cables or pipes onto which the signal from an active a transmitter is coupled The figure indicates the currently selected frequency which has to correspond to the frequency of the transmitter PROBE S12 Hz For locating a probe pig transmitter or camera probe The figure indicates the currently selected frequency which has to correspond to the frequency of the probe 4 23 Megger Display of reception signal strength and sensitivity 4 2 2 2 Regulating the sensitivity level to match the reception signal strength Reception signal strength and sensitivity are shown in the following segments of the display Segment Mode of operation 1 Reception signal display bargraph The strength of the reception sig
29. ring the probing of the site see section 4 2 3 General site surveying Rotate the receiver through its own axis over this location until the maximum signal strength is indicated see section 4 2 2 3 Handling the receiver Result The receiver is in line with the conductor when it is positioned where the signal is strongest which is prerequisite for determining the direction of the line To determine the path over an extended distance proceed by moving forward while maintaining the maximum signal strength If the signal becomes weaker check that the conductor has not changed direction or become deeper move and or rotate the receiver to the left and right until the maximum signal strength is detected again The path of the metallic conductor should always be followed until it exits the site being searched and its path should be clearly marked along the way with paint chalk or marker flags Adjust the sensitivity of the receiver as needed if the signal level is too strong weak see section 4 2 2 2 Regulating the sensitivity level to match the reception signal strength It is advisable to manually adjust the sensitivity level 4 27 Megger Preconditions for automatic depth measurement Measuring depth with the aid of a probe 4 2 5 Determining the depth of a line not available for Easyloc Basic The Easyloc Rx receiver has an automatic pushbutton depth measurement feature One precondition is that a clear signal from
30. so be made Multiple wire cable internal conductor connected or disconnected with metallic screen and earthing insulation Same application as in example 1 Metallic conduit with or without insulation against earthing The earth spike and the conduit should be spaced as far apart as possible Under certain circumstances optimum positioning of the earth spike may require several attempts If a return wire is available The spacing of the return wire should correspond to at least 10 times the depth of the line being located Pair of wires with or without screen with short circuit at the end of the cable For twisted pairs of wires with a by length of lay of the twist greater or equal to the laying depth the orientation of the cable can be easily determined Adjacent lines which are horizontal to each other gt Minimum of the reception signal Lines situated on top of each other vertically gt Maximum of the reception signal 4 16 Coupling via adapter cable Coupling via transmitter clamp Megger 4 1 2 2 Coupling using special connection accessories The signal from the transmitter can be directly coupled into plug sockets antenna connections and telephone jacks with the aid of a suitable adapter cable In doing so it is not necessary to disconnect the lines Megger offers a ready made house connection set for this type of coupling also see section 3 System overview page 3 10 The transmit
31. t be made using a pulsating signal Continuous signal This signal type has to be activated before a taking a depth measurement Signal strength Low output signal strength Low signal strength conserves the batteries High output signal strength The Easyloc Tx can be used in the following modes Symbol Mode of operation Induction In this mode of operation the transmitter s signal is emitted through the integrated antenna and is thereby inductively coupled with any metallic lines located within a certain radius Direct connection In this mode of operation the signal is directly coupled with a metallic line via the measurement cable which is connected to the jacks on the front panel of the transmitter Transmitter clamps alligator clips or power socket adapters for example may be used to connect the measurement cable to the lines The Tx version does have two additional buttons for frequency selection Symbol At 33 Mts Frequency 32 768 kHz 8 44 kHz Megger 4 1 2 Options for direct and inductive signal coupling 4 1 2 1 Direct coupling on cables and pipes Introduction Direct galvanic coupling is practical for cables which are easily accessible and free of current The method of connection is dependent upon the position and nature of the lines e g insulation cable conduit accessibility of the cable ends Direct coupling presents a reliable option for selective cable location as the signa
32. ter signal can be coupled onto easily accessible cables with the aid of a transmitter clamp In doing so it is not necessary to disconnect the cables By ensuring that the transmitter clamp is completely closed around the cable only a small leakage field will be generated This can significantly reduce the unwanted coupling of the signal onto neighbouring lines Ideally the cables will be grounded at both ends but even if they are not grounded at one end selecting high power transmitter output will assist easy location 4 17 Megger Inductive signal coupling 4 1 2 3 Inductive signal coupling For lines which are not easily accessible the signal from the transmitter has to be inductively coupled via the integrated antenna The inductive coupling of the signal is highly recommended if unknown lines are to be located e g at a construction site To determine the orientation of a specific line the transmitter has to be positioned directly above the presumed line as shown in the following illustration In doing so the best signal coupling is achieved when the handle of the transmitter housing is aligned with the presumed lay of the line When locating lines using inductive signal coupling the following guidelines should be observed As the signal can be coupled onto other conductors when using inductive coupling direct coupling of the transmitter is always preferable when locating lines selectively Inductive signal coup
33. th the aid of a pointed object e g screw driver Replacements can be ordered through the Megger sales team 5 35
34. the following information www megger com If a fault is recognized during the test the self test procedure is terminated and the display indicates the respective error code see next page If this is the case the error code should be forwarded to the responsible service centre Press the 2 button to exit the self test 4 32 Error codes Error code 000 201 210 operation mode POWER GRID 211 operation mode 2 212 Operation mode 3 213 operation mode 4 220 operation mode POWER GRID 221 operation mode 2 222 operation mode 3 223 operation mode 4 230 operation mode POWER GRID 231 operation mode 2 232 operation mode 3 233 operation mode 4 240 operation mode POWER GRID 241 operation mode 2 242 operation mode 3 243 operation mode 4 250 operation mode POWER GRID 251 operation mode 2 252 operation mode 3 253 operation mode 4 4 33 Megger Description Unimplemented frequency Not enough battery power for the self test procedure Interferences too strong for the self test procedure In this case the self test should be repeated in an environment with less interferences Fault L1 Fault L2 Fault L1L2 General fault Megger Changing the batteries in the receiver 5 Maintenance The status of the receiver s batteries is checked upon start up and indicated in the display The system regularly checks the b
35. the receiver through its own axis over this location until the maximum signal strength is indicated see section 4 2 2 3 Handling the receiver Press the button to begin measuring the depth For automatic depth measurement For making a rough estimate of while working in TRANSMITTER or the depth while working in RADIO PROBE mode or POWER GRID mode the measured depth will be the following symbol will appear shown in the display in the display The measurement has to be continued from step 7 Move slowly to one side until the following symbol appears in the display and an acoustic signal sounds 4 29 Step Action 8 Mark this spot then move in the opposite direction to the other side of the line until the symbol appears in the display again 9 Mark this spot as well then measure the distance between the two spots Result Half the distance between the two spots corresponds approximately to the depth of the line Indications and error During the depth measuring process the following symbols are used to notify the messages user about certain characteristics and errors Symbol Meaning For of one of the following reasons the depth could not be measured e The signal received was too weak or too irregular e The receiver was not held steady enough during the measuring process e The receiver was not positioned directly above the line at the beginning of the process
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