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Dynalog C-SCAN 2000 Series Operator's Manual

Use of detector and setup
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Dynalog Electronics Limited
Bristol, England
www.dynalog.co.uk
For Model 2010
OPERATOR'S MANUAL
Use of Detector and setup

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  • Page 1 For Model 2010 OPERATOR'S MANUAL Use of Detector and setup Dynalog Electronics Limited Bristol, England www.dynalog.co.uk...
  • Page 2 Equipment Serial Number: Dynalog Job/Contract Number: OPERATING INSTRUCTIONS Part 1 - OPERATION Introduction This folder includes full instructions and data for unpacking, setting-up, commissioning, and operating the above referenced C-Scan Model 2010 Survey & Monitoring System for buried pipelines. Part 1 of the Manual – OPERATION – is divided into Sections as shown on the Contents List on the next page.

  • Page 3: Table Of Contents

    Leaders in Pipeline Survey Systems Section 2 OVERVIEW 2.1. Introduction This section described the C-Scan Pipeline Survey System model 2010: what the system comprises, how to unpack it, set it up and get it started. A detailed contents list for this section appears below. Contents Introduction 2 –...

  • Page 4: Unpacking And Activating The C-Scan 2010 Detector Unit

    Leaders in Pipeline Survey Systems Unpacking and activating the C-Scan 2010 Detector Unit (DU) 2.2.1 Unpacking For shipping safety the Detector Unit is shipped with its batteries packed separately. Unpack the entire system from its yellow transportation case and make sure all the items, including those stored in the lid of the Signal Generator, are present in accordance with the packing list.

  • Page 5: Charging The Detector Unit (Du)

    Leaders in Pipeline Survey Systems turns itself off. IMPORTANT: interrupting the initial charging cycle may seriously affect the ability of the batteries ever to reach full capacity. 2.2.3 Charging the Detector Unit (DU) NOTES: The DU can be powered either by re-chargeable D–size NiCad batteries OR by D-size alkaline batteries, both of which types are supplied with the unit.
  • Page 6 Leaders in Pipeline Survey Systems switch to ON. Fig. 2 – Inserting the batteries • The LCD will now display the clock and date setting panels – see Figs 3a & 3b below - if there is sufficient residual charge left in the batteries. The 1 charging procedure detailed in Steps 1 thru 3 below may now be followed.
  • Page 7 Leaders in Pipeline Survey Systems Note also that up to this point no buttons have been pushed on the DU display panel. The only switch that has been activated is the Main Power Switch in the battery compartment. WARNING! In all below procedures the mains switch must be on before the charger is attached..
  • Page 8 Leaders in Pipeline Survey Systems This indicates a timer that counts backwards, the time displayed being the maximum time allowed to charge the batteries. If the batteries are charged before that time has expired (counted down to zero) charging will be terminated and the unit switched off automatically.

  • Page 9: General Guidance Notes On The Batteries Used In The C-Scan System

    Leaders in Pipeline Survey Systems General Guidance Notes on the batteries used in the C-SCAN System. GGN 1 C-Scan Signal Generator (SG) The power supply for the SG can be augmented by connecting an external 12 volt vehicle type battery via the connecting cables (black and red leads with fuses and ‘crocodile’ clips) supplied and stored in the lid of the SG casing.

  • Page 10: Getting Started

    Leaders in Pipeline Survey Systems reason, the time and date will need to be reset when the DU is re-activated. IMPORTANT FEATURE: Survey Data Storage is NOT affected by the removal of the batteries. However, be sure to use reasonably fresh batteries when downloading data from the DU. Getting Started 2.3.1 The display screen and keypad The C-SCAN 2010 is the next generation design in the 2000 series Pipeline Survey...
  • Page 11 Leaders in Pipeline Survey Systems of the pipeline • Full compatibility with DCAPP for Excel included in C-SCAN 2000 • Software upgradeable via PC For more details of the display mode screen and the keypad layout see Figs. 6 and 7 below. Where possible, all displays are language independent, with graphic icons representing features or functions: Depth to Centre...
  • Page 12 Leaders in Pipeline Survey Systems Pipeline Diameter Approx. Depth to centre or cover Distance to Pipeline Overhead Locator Pipeline Position indicator Approx. Current GPS position Signal strength indicator Fig. 6 – the Search Mode Display screen 2 - 10 OPERATING MANUAL PART 1 –...
  • Page 13 Leaders in Pipeline Survey Systems ON / OFF Download key 14 Function keys LCD contrast key Help key NO key (û) Back key YES key (ü) ü Enter key Fig. 7 – Keypad layout 2 - 11 OPERATING MANUAL PART 1 – OPERATION AVW 150203 –...

  • Page 14: Quick Start

    Leaders in Pipeline Survey Systems 2.3.2 Quick Start 2.3.2.1 Start-up Screen (GPS Off) Fig. 8 (right) shows the Start-up screen. Note the GPS sub-system is turned Off at this stage. To switch the GPS ON press the key adjacent to the GPS symbol After a few seconds the screen will change to GPS ON: note this does not mean the GPS has acquired the signal, only that it is searching.

  • Page 15: Pipeline Specification Confirmation Screen

    Leaders in Pipeline Survey Systems 2.3.2.3. Pipeline Specification Confirmation The final pipeline specification selection will now be shown – see Fig. 10 right. If correct, press the key adjacent to the tick sign again to continue. If further editing of the specification is required, press the key adjacent to the X sign to return to the Pipeline Specification screen.

  • Page 16: Search

    Leaders in Pipeline Survey Systems 2.3.3 Search In this example, from the Search screen display – see Fig 13 right – it can be seen that the pipeline is located behind and to the right of the current position of the Detector Unit (DU) –...
  • Page 17 Leaders in Pipeline Survey Systems Press the key adjacent to the GPS POS box (bottom RH corner) to show the Latitude / Longitude position of the DU – see Figs. 14 & 15 on page 2-15 below. Fig. 14 – GPS signal ‘GOOD’ Fig.

  • Page 18: Calculate

    Leaders in Pipeline Survey Systems 2.3.4 Calculate After a small delay (indicated by the hour-glass symbol with a count to 300) the screen will display the calculated figures – see Fig. 16 right. Statistical analysis shows the error function for depth and current (shown as +/- 0.00 in this example).

  • Page 19: Entering Distance

    Leaders in Pipeline Survey Systems Distance marker rather than referencing from Zero (relative) – see Fig. 17 above. Section 4.5 later in this manual. Press the STORE key now. This is the final screen before data is – see Fig. 18 right. Pressing the key below the X box will revert to the previous screen.
  • Page 20 Leaders in Pipeline Survey Systems The distance from the start point (#000) is now entered as 16m see Fig 20 right. NOTE: you may change your mind at this point and below the go- - box key is used POSITIVE away from the Signal Generator (SG) –...

  • Page 21: Graphs

    Leaders in Pipeline Survey Systems signal set on the signal generator and of the ground conditions. It is solely determined by the average condition of the coating between the two locations and by the area of pipeline coating in contact with the ground, per metre (or per foot) of pipeline – or in other words: the pipeline diameter.
  • Page 22 Leaders in Pipeline Survey Systems Section 3 SUMMARY SPECIFICATION Contents Detector Unit (DU) 3 – 2 Signal Generator (SG) 3 – 3 3 - 1 OPERATING MANUAL...
  • Page 23 Leaders in Pipeline Survey Systems C-SCAN model 2010 - Detector Unit specifications 7.5 kgs (16lbs) Weight 18 x 47 x 120cm (7 x 18 x 47”) Size One-piece Polyethylene (PE) moulding Construction IP65 (total immersion for 500mm) Sealing (Protection Class) Symmetrical multi-axis Antenna array 9+ metres (30+ feet) in good conditions...
  • Page 24 Leaders in Pipeline Survey Systems Signal Generator specifications 14.5 kgs (32lbs) Weight Size 33 x 26 x 23cm (13 x 10 x 9”) Aluminium drawn case with hinged storage lid Construction IP66 (closed) / IP65 (open) Sealing (Protection Class) 3 x 12v – 7Ahr sealed lead/acid Rechargeable batteries 11.5 to 18v DC...
  • Page 25 Leaders in Pipeline Survey Systems Section 4 OPERATION Contents Introduction 4 - 1 4.1.1 Principles of Operation 4 - 2 DEMO Mode 4 - 3 4.2.1 Starting DEMO MODE 4 - 4 Creating a new survey 4 - 5 Notes on entering distances 4 - 6 Chainage 4 - 7...

  • Page 26: Principles Of Operation

    Leaders in Pipeline Survey Systems 4.1.1 Principles of Operation An electrical current applied to a well wrapped buried metal pipeline will decrease gradually with increasing distance from the current injection point, as the current escapes to earth through the wrapping. If the wrap has a uniform thickness and separates the pipe from the surrounding soil at all points, the strength of the signal current on the pipe will decline logarithmically, and the rate of decline will be dependant primarily on the electrical resistivity of the wrap or...

  • Page 27: Demo Mode

    Leaders in Pipeline Survey Systems DEMO MODE enables all functions within the C-Scan model 2010 to be Demo Mode simulated. Four ‘standard’ surveys have been stored in the unit’s memory. The tables below show the data for these surveys: Survey 1 Current Depth Latitude...

  • Page 28: Starting Demo Mode

    Leaders in Pipeline Survey Systems 4.2.1 Starting DEMO MODE Switch on the C-SCAN: Press Press Menu Press SETUP Press Demo Screen will show DEMO ON Press X to return to main screen. NOTE: since we are in DEMO mode GPS cannot be used.

  • Page 29: Creating A New Survey

    Leaders in Pipeline Survey Systems When you have gone through the Survey 1 data and have just completed the last point (Current 52.64, depth1.11) and are happy with the controls, come back to this point for more details. We have now completed the first ‘virtual’ survey. In a real situation, a surveyor may do a number of surveys before downloading the data.

  • Page 30: Chainage

    Leaders in Pipeline Survey Systems If two successive points are taken around a bend in a pipe and GPS is being used, it is important to enter the pipeline distance and NOT use the GPS distance, as this will cause an error.
  • Page 31 Leaders in Pipeline Survey Systems This can make it easier to reference if CP points have distance values. To use Chainage rather than distance, use the chainage key as shown below. Chainage start Start Point point Select distance. Press Select Chainage. this to go to Press this to go to NOTE: We may freely switch between CHAINAGE and DISTANCE.

  • Page 32: Direction Change Within A Survey

    Leaders in Pipeline Survey Systems Direction change within a survey There are occasions where a survey is proceeding and every point survey is producing good results i.e. attenuations less than 1 mB/m. But then a section is encountered that has a high attenuation (say 10 mB/m). If the gap between each point has been 100m we do not know where the fault that has caused the high attenuation is within the last 100m.

  • Page 33: Notes On Graphs

    Leaders in Pipeline Survey Systems Use the ‘#’ arrow keys to choose a section. As we can see the attenuation between #02 and #04 is 19.25 mB/m. Clear the memory and run the demo again. This time do not use GPS and enter distances manually using negative distances and see how the graphs change.

  • Page 34: Close Interval Survey

    Leaders in Pipeline Survey Systems Close Interval Survey When a normal survey is proceeding, it is desirable to find the position of a fault. Close interval mode is used to pin-point a fault to within +/-1m (or better depending on conditions). NOTE: Normal attenuation readings have no meaning when the distance interval is less than(<)15m.
  • Page 35 Leaders in Pipeline Survey Systems bar showing the maximum, minimum and average current readings taken for this point. The UP and DOWN keys allow zooming in on the graph. Press X to ignores sample and retake reading. Press tick to accept reading. Move to the next point (using the display in the upper right hand corner) press OK and the survey continues.

  • Page 36: Notes On Gps

    Leaders in Pipeline Survey Systems Notes on GPS GPS is an acronym for Global Positioning System. There are 24 satellites in low- earth orbit. The GPS receiver in C-SCAN receives data from a number of these (maximum 12) depending on which satellites are ‘in-view’. When the GPS unit is first turned on, the GPS unit attempts to acquire the satellites ‘in-view’.

  • Page 37: Battery Life/Power Modes

    Leaders in Pipeline Survey Systems If a point is stored with a BAD or OLD GPS position, the position displayed is likely to be that of the previous point. This would create a distance of zero. C-SCAN picks this up and will not allow the operator use the GPS position (however, it will be recorded).
  • Page 38 Leaders in Pipeline Survey Systems There are messages that are displayed to tell the user which part of C-SCAN is active. This can be summarized at the start screen Antennae OFF Antennae ON All menu functions switch off the Antennae. Similarly, if the unit has been idle on the START screen for more than 3 minutes, the antennae is switched off.

  • Page 39: Printing Out A Survey

    Leaders in Pipeline Survey Systems 4.11 PRINTING OUT A SURVEY After a survey is complete – it is probable that a printed report is required. There are two methods for doing this: 1. Use any PC based terminal program (Hyperterminal with windows). 2.
  • Page 40 Leaders in Pipeline Survey Systems Start DCAPP for Excel, and on the download prompt, press C-SCAN 2000 key. After download, the screen will revert to the startup screen. This key may also be used if Microsoft Hyperteminal is being used or any terminal software. Print Cnvrt The key ‘Print cnvrt’...

  • Page 41: Clearing Memory

    Leaders in Pipeline Survey Systems 4.12 Clearing Memory To clear all memory locations (erase data), from the start up screen, press menu, then press clear. (‘Browse’ key may appear if a survey is in memory) Press YES (tick) will erase all data, Pressing NO (X) will abort and all data will remain in memory.

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C-scan 2010

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