Pipeline Current Mapper - Radiodetection

Pipeline Current Mapper

LocateRecordUploadReviewAccurately findburied pipes,establish centerlinedepth, thentroubleshootcoating defectsStores up to 1000PCM and Locationmeasurements inFlash memorySaved receiverdata is uploadedin realtime to aPDA or PC viaBluetooth for GPSsynchronizationAll uploadeddata displayed ingraphical formatfor immediateor post surveyanalysisFast locate and effective measurementof pipeline coating defectsThe location and measurement of pipelinecorrosion using electromagnetic detectiondevices (Locators) are increasingly being linkedwith GIS systems and GPS information, toprovide an accurate record of the condition ofpipes and the position and time co-ordinates forpost mapping analysis – this requirement is thebasis of the PCM .As part of Radiodetection’s commitment to protecting theenvironment the PCM enables the pipeline technician tocarry out preventative maintenance on pipelines giving thema longer life and identifying corrosion at an earlier stage.The PCM System consists of a portable transmitter and ahand held receiver. The transmitter connected at the CPSstation or test post, applies a special signal to the pipeline.The receiver locates this unique signal at distances up to30km (19 miles) identifying the position and depth of the pipe.Once the pipe has been located the technician can map theleakage currents along the pipe in magnitude and directionallowing coating defects to be quickly identified.Once the segment of pipeline where the defect lies has beenidentified, by using an A-frame, the defect position and depthcan be further pinpointed to within 1 meter (3 feet).The PCM using its powerful feature set including AutomaticSignal Attenuation (ASA), accurately and easily locates andmaps the pipeline even in areas where there is contactwith other metallic structures, electrical interference, orcongestion, providing simultaneous measurement of PCMcurrent (ACCA) and Voltage Gradient (ACVG).This eliminates the need for the operator to perform ‘currentspans’ and manual calculations to determine CP currentsalong a pipeline that would usually require a direct connection.Each time the PCM maps in any of the modes, as well asstoring and displaying the information on the receiver, all thedata gathered can be sent via Bluetooth to either a PC oran optional PDA (with GPS), and displayed in a number ofgraphical formats for fast analysis.The PCM and its accessory equipment provide any pipelinetechnician with the latest in accurate, fast and reliablepipeline current mapping tools.PCM Receiver featuresn Precision locator and PCM in one unitn Unique features to improve data integrityASA Maintains performance in strong magneticfields such as Power sub-stationsDepth of utility in Power Moden Current mappingQuicker 3 second ACCA mappingUp to 1000 data recordsn Real time upload of mapped data via Bluetooth to PDA or PCIntegrates GPS datan Downloadable analysis software for PDA and PCIntegrates with standard GIS software5 key graph mapping modes including locatedepth, current and phasen Low power for full day surveyn Backlight / Real soundPCM-Tx Transmitter featuresn High power 150 Wattn 30km (19 miles) range @ 4Hz

PCM ReceiverThe hand held receiver unit is used to locate the pipeline,even in heavily congested areas such as conduits, and thenprovides the operator with a measurement of depth currentstrength and signal direction applied by the transmitter toquickly pinpoint corrosion related problems.The receiver makes the required calculations andinstantaneously displays the results. This provides theoperator with an improved method that accuratelytroubleshoots the CP system by pinpointingmetallic contacts and locatingareas of coating defects.MULTI-FUNCTIONTACTILE KEYPADHIGH CONTRAST DISPLAYchoice of batteries2 x LR20 D Cells orrechargeable equivalentweather sealedEarphone and accessory portsReal time mapping analysis (PDA or PC)using Radiodetection GML Survey softwareTo provide faster analysis of mapped information, the PCM connects wirelessly with a PDA or PC, uploading all theinformation immediatelyand linking it with GPSinto a database using theRadiodetection Surveysoftware. The database isupdated after each mappingand can be seen immediatelyon the PC or PDA in eithera database or a choiceof graphical formats. Theinformation can then beimported into most of thestandard post processingsoftware programs available.The Radiodetection Survey software incorporates GPSinformation and shows the mapped data in a variety of formatsas well as allowing comparisons between new and oldmapping surveys.For more details go to www.radiodetection.comeNGINEERED PLASTICSErgonomic, robust andall weather housingSELF ORIENTING FOOT

PCM-Tx TransmitterThe PCM system’s specialized constant current high-power transmitterallows for long range signal detection of up to 30km (19 miles).Significantly fewer pipeline connection points are needed therebyreducing the time required to evaluate a section of pipeline.The transmitter has three operating modes that enable both distributionand transmission pipeline systems to be effectively mapped.Connecting the PCM is straightforward, and the transmitter’scurrent reading DISPLAY and power indicating LED’s helpthe operator to choose the best settings for the specificpipeline application.A-FrameThe A-Frame is used with the PCM receiver to preciselypinpoint coating defects and isolation faults. The PCM receiver display indicates direction to the fault, using theCD arrows, and this makes fault position easy to locate.The PCM also displays the dB microvolts reading acrossthe A-Frame spikes, and this allows a comparison to bemade between different faults to determine the most severe.This numeric value is stored in the PCM’s datalogging facility,and uploaded via Bluetooth to a PDA or PC.locate l measure l store l upload l review l analyze

Pipeline CurrentMapperDatauploadInterferencerejectionHigh power Tx30 km (19 miles)Fast location withaccurate mapping,minimizes unnecessaryexcavationsBluetooth link toPDA/PC for real timelogging with GPSinto RadiodetectionGML ApplicationDSP based algorithmsenable filtering of falsesignals even in areaswhere there is contactwith other metallicstructuresFewer connectionpoints speeds upsurvey time overlong distancesTechnical SpecificationsPCM ReceiverDynamic Range:Selectivity:n Range from Tx:n Depth accuracy:n Current accuracy:n Locate accuracy:n Weight:n Batteries:n Environmental:n Approvals:nMAPPING MODESnELFExtra Low Frequency4Hz 128Hz/98HzLFLow Frequency640Hz/512Hz8kHzStandard locate frequency from battery poweredRadiodetection transmittersNB: Current Direction (FF) arrows are displayed only with the PCMmeasurement, and not in locate modes, unless the PCM is supplied withCD frequency.140dB120dB/Hz30km (19 miles) 5% to 3 meters (10ft); 7.5% to 5 meters (16.5ft) – in good conditions 5% 5% of depth3.3kg (7.2lb)2 x LR20 D cells (Alkaline or NiMH)IP54CE, Bluetooth compliantLOCATE MODES Detects 50Hz/60Hz from power cablesPeak/NullCPSDetects 100Hz/120Hz ripple from CP transformer rectifiernUsed to pinpoint target line8kHzStandard locate frequency from battery poweredRadiodetection transmittersnSelectable peak & null responsenGain control: Via keypad auto & manualPCM-Tx TransmitterFrequency SelectCurrent Direction (CD) provides a positive identification of the ‘out-going’ current and provides a method of locating pipe faults using the A-Frame.The three position switch selects the following mapping frequencies:ELFMaximum range for Current Logging 4Hz 98Hz/128HzELCDStandard Current Logging with CD (4Hz 8Hz) CD 98/128HzLFCDImproved depth, position and current logging accuracy with respect to ELCD. Shorter range operation (4Hz 8Hz) CD 512Hz/640Hz*The 4Hz mapping frequency is always present and the current is shown onthe LCD. The operator has a choice of selecting the locate frequency andcurrent direction indication if required for identification in congested areas orfor fault finding.Current SelectCase construction:Weight:n Size:n Environmental:n Approvals:nnHigh impact engineered plastics15.2kg (34lb)47 x 37 x 19cm (18.5 x 14.5 x 7.5 inch)NEMA 3R and IP55 – lid open;NEMA 6 and IP67 – lid closedCEThe six position (current select) rotary switch selects the following 4Hz current settings:100mA, 300mA, 600mA, 1A, 2A, 3A. When the PCM Transmitter is in operation, the selected current will remain at a constant level,unless the input power supply limit is reached.PCM Attachment (A-frame)A-frame for detection of sheath faults on buried pipes and cables(includes PCM connection cable).nnWeight:Size:1.55kg (3.4lb)8.5 x 59 x 4.5cm (33 x 39.3 x 1.7 inch)