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DA METER USER`S MANUAL - The M.C. Miller Company
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1. 65 With the reference electrodes properly positioned the polarity of the DCVG voltage will always be positive in the case of perpendicular DCVG surveys see our DCVG Training Manual DA Meter Version In this case the arrow on the Survey screen will always point back to the pipe However a change in arrow direction will be evident when performing parallel or in line measurements in the vicinity of a DCVG anomaly coating defect In this case the arrow will always point in the direction of the defect location on the pipe with respect to where you are currently standing As you approach the defect the arrow will point towards the upcoming defect location and when you are past the defect the arrow will point back to the defect location Consequently performing in line measurements in the vicinity of a defect can be a good way to pin point its precise location by monitoring the arrow s polarity switches When you are actually straddling a defect location with the reference electrodes in line with the pipe the DCVG voltage will be zero ie neither positive nor negative see our DCVG Training Manual DA Meter Version Also with respect to the above active survey screen as DCVG voltages are recorded by the DA Meter the Distance From Start total distance from the start of the survey parameter will increase in increments of 5 0 feet or whatever the Distance Per Reading value was that was ente
2. Figure 1 DA Meter s Keyboard Layout How to adjust the screen contrast To the left of the lt gt switch below the symbol there are two keys one marked lt gt and the other marked lt gt Press the key marked lt gt to increase the screen contrast and the key marked lt gt to decrease the screen contrast Pressing the lt gt and c gt keys at the same time will return the unit to the default contrast setting How to use the screen backlight To the right of the lt gt switch below the 14 symbol there are two keys one marked lt gt and the other marked lt gt These control the backlight and function slightly differently for colour and mono units EL Backlight for units with a monochrome display Press the 4 gt key to switch on the screen backlight and the 1 lt gt key to switch it off Because the backlight increases the power drain on the batteries we suggest you use it only when necessary The backlight switches off automatically after a few minutes if no keys have been pressed CCFL backlight for units with a colour display Press the 7 lt gt key to increase the backlight intensity by one step and the c gt key to decrease the intensity by one step For units fitted with a transflective screen the backlight can be turned off completely For units with the STN transmissive display the backlight can be reduced to low intensity but cannot be switched off How to enter d
3. button is tapped on the Survey screen and a geo feature is registered Log GPS at Sidedrain Anomaly If this box is ticked GPS position data will be logged automatically when DCVG defects anomalies are marked Auto Log GPS By tapping on the drop down menu button in the Auto Log GPS field the selections available will be displayed as indicated below 55 Max acceptable Far and Near Ground Reading difference 5 AC System ec Hz Beep if below 2999 v GPS Type NIVEA Z Differential GPS Required 9999 Never BED cps port Comi gt O Use Gs for altitude no SST V Log Gs at Flags Auto Log GPS SARE V Log GS at DCP Feature Every 5 Readin zs Astar Pf DAMeter_PLS 3 F156 AM By selecting one of these options you can elect to have the GPS position data logged automatically at every survey reading at every second reading at every fifth reading at every tenth reading or not at all never at survey readings Step 12 Select Max mV Reading to be First Reading in Total mV Determination The last box in the above screen is actually not related to GPS Options If this box is ticked the Max mV voltage value recorded at an anomaly location during the marking process will automatically become the first voltage value used by the DA Meter s software to calculate the Total mV total voltage gradient Otherwise if this box is not ticked you will have to repeat the Max mV
4. if your rectifier current was being interrupted switched On and Off in a cyclic fashion during your site survey Step 4 Collect the requested data from each site When all of the prompts see below have been completed for a particular site the Prompt List for the next site in the batting order will come up and this process is continued until all sites on the route have been examined By tapping on the Goto Site button on the Survey Info screen the Site Info screen will come up for the selected highlighted site Valve Example The Site Info screen for the SU11 Valve in our example route is as shown below 111 Site Info SU11 Val e Station No 580 30 Mile Post 11 000 l Prompts z Desc Franks Site via Batch Update Dev Pipe to Soil sadit A E eecoet Above Ground Condition Area Franks Area above Ground Corrosion Fipaline xFMN_Pipeina Ahove Ground Coating Ground Leval Condtion Pipe Depth 20 Ground Level Corresion v Lat N 5 12000 Diowa oval Ca stion Long E 10 12000 Total Prompts 7 Completed Prompts Ska Se ae sca oT Jones ee s 11 20 PM Alt 15 As can be seen from the above screen important information about the Valve site is presented here This type of information about a particular site is established on the ProActive side and it is downloaded to your DA Meter in association with the scripted route If not previously established
5. is the required selection for the communication port for a GPS receiver accessory on the DA Meter This is the 9 pin serial data port located on the top side of the unit the left hand port looking screen side up If you would like to have GPS Altitude Data collected in addition to GPS Position Data the box labeled Use GPS Altitude should be checked If you are working in a country where the Metric System is used you can check the Use Metric box In this case mileposts and station numbers will be in kilometers and meters respectively Finally you can select to show either mileposts or station numbers or both at your data collection points sites by checking the appropriate boxes on the Survey Settings screen By tapping on the OK button on the above screen you will be returned to the Site Survey screen Step 3 Select the Scripted Route Site Survey on which you are about to embark By tapping on highlighting a scripted route on the route selection screen and tapping on Open Survey the Survey or Route Info screen for that particular survey route will appear For our example route entitled Franks SU101 this screen is as shown below 109 Survey Info Franks SU101 Sites Total Sites 17 SU11 Exposed Pipe Completed Sitas O 0 SU11 Above Ground P aia SU11 Water Samning Non Compliant Sitas O SU11 Internal Corrosion E TA SU11 Storage Well x Date Started
6. 77 HOA New Survey Ctl4N Continue Previous Survey Ctrl C Finish Survey tri F Exit Ctrl x Dist From Known Station Range None Selected Geo Feat Device Read GPS Data Log GPS nao Flag Flag 3 DAMeter_PLS 2 9 11 12 AM Under Survey there are several options If this is a new survey not a continuation of a previous survey tap once on New Survey The window shown below will appear New Survey x Enter New Survey Filename eee o Cancel Step 4 Enter a filename for the Survey using the keyboard Note This is an important step as the filename is used to identify the survey and also recorded data voltages will be stored in this named file for future retrieval It is highly recommended that a protocol be established for selecting Survey Filenames Critical information should be included in the filename such as pipeline company s name city or state in which the pipeline is located pipeline number and section of pipeline number under survey The protocol developed should be applied consistently for each survey 78 For example let s assume that pipeline company XYZ has a pipeline located in Texas and that the pipeline is identified as pipeline 12 and a survey is being performed on section 085 of this pipeline A good filename for this survey would be XYZ TX 12 085 SP When this survey file is later accessed with this filename we know the name of the pipel
7. Site Surveys PE 10 44 P As can be seen there are several buttons on this Site Surveys screen The Open Survey button will open up the highlighted route as discussed below in Step 3 The above screen will list all of the scripted routes that are currently stored in your DA Meter s memory As can be seen from the above screen we currently only have the Franks SU101 route loaded onto our data logger The Delete Svy button will delete the highlighted route This is something you might want to do after you have successfully uploaded a completed route to ProActive so that only fresh to do routes will appear in this window 106 The Voltmeter button can be used to view and change the reading mode of the DA Meter s stand alone voltmeter See Section IV 5 below for information on how to use the DA Meter as a stand alone voltmeter in which case you can use the DA Meter to measure voltages that will typically not be logged with the site survey data unless they are entered manually The reading mode for the voltmeter will have been scripted on the ProActive side for each site on the route and during a site survey voltages measured by the voltmeter will be logged by the DA Meter Furthermore pipe to soil voltage waveforms in cases where rectifier current interruption is used can be viewed and saved by the DA Meter by tapping on the Voltmeter button and then tapping o
8. Such selections are made by tapping on the pull down list arrow button in the description field and tapping on the Read button in each case until all prompts for this site have received a response By tapping on the OK button you would be returned to the prompt screen By tapping on the Read button the data for this prompt would be logged and by tapping on the Next Prompt button the next prompt screen in the scripted sequence would appear For our Valve Site example the next 6 prompt screens require visual observation data to be entered selected Such selections are made by tapping on the pull down list arrow in the description box and tapping on the Read button in each case followed by the Next Prompt button until all prompts for this site have received a response The remaining 6 prompt screens for our Valve Site example are shown below 115 SU11 Valve Above Ground Condition lt lt Prior Site Next Site gt gt Prior Prompt Next Prompt Frior Reading Fair Logged 7 1 04 digi Logged UNASSIGNED iookup Help Asta Site Surveys PE 11 30 Pu ral SU11 Valve Above Ground Corrosion lt lt Prior Site Next Site gt gt Prior Prompt Next Prompt Frior Reading Average Logged 7 1 04 Current Reading SU11 Valve Above Ground Coating lt lt Prior Site Next Site gt gt Prior Prompt Next P
9. Under Survey there are several options If this is a new survey not a 16 continuation of a previous survey tap once on New Survey The window shown below will appear New Survey ee Enter New Survey Filename e Cancel Step 4 Enter a filename for the Survey using the keyboard see Section II Note This is an important step as the filename is used to identify the survey and also recorded data voltages will be stored in this named file for future retrieval It is highly recommended that a protocol be established for selecting Survey Filenames Critical information should be included in the filename such as pipeline company s name city or state in which the pipeline is located pipeline number and section of pipeline number under survey The protocol developed should be applied consistently for each survey For example let s assume that pipeline company XYZ has a pipeline located in Texas and that the pipeline is identified as pipeline 12 and a survey is being performed on section 085 of this pipeline A good filename for this survey would be XYZ TX 12 085 CIS When this data file is later accessed with this filename we know the name of the pipeline owner we know the state in which the pipeline is located we know the pipeline number we know the section number of the pipeline that was surveyed and we know that it was a CIS Note You will not be permitted to use invalid characters
10. which means that the data at D C P s will be accepted when you press the push button and you would then tap on the save button on the Device screen to save the data or you can select Save which means that the data at D C P s will be saved when you press the push button Alternatively you can tap on Device on the Survey screen and proceed to save data as described in previous sections You should then proceed through the various set up screens making your selections as before Since this is a Combined DCVG and CIS application you will only have two choices regarding Voltmeter Read Mode since the DCVG part requires current interruption and measurable differences between ON and OFF pipe to soil voltages ie measurable IR drops which rules out the Min Max mode The two options are On Off Pairs DSP mode and On Off Pairs GPS Sync mode Again the GPS Sync mode can only be selected if you are using the MCM GPS receiver and you are also using current interrupters with integrated GPS receivers Once you have gone through the setup screens the Survey screen will appear as shown below Survey Survey Options Survey Survey Options Help n 0 0 A mY DCVG Dist From Start Dist From Known Station e he 5 7 OC 400 MOhm GPS Status No Data Feat Device Mark Read _ 5 es GPS pnde Flag 7 Astat p Pig DAMeter_PLS As can be seen from the above screen
11. 9 Read Mode CURRENT shunt voltage shunt Type Range 5 7 V DC 400 MOkm Voltmeter fective Astat PeDaMeter_PLs D 12 04 AM tal A number of industry standard shunts can be selected by tapping once on the pull down list arrow in the Shunt Type box The example shown above indicates a shunt factor of 1000 1A 1mV 1000 Consequently if the DA Meter measures 25mV across the shunt the calculated current would be 25A for example DCVG This voltmeter reading mode would be selected if you were set up to perform a DCVG survey with the reference electrodes connected to the DA Meter as illustrated in Section III 4 96 Voltmeter DCVG ON mv OF mv DCYG im Read Mode cycle ms WCG gt On foo Range oft Boo 5 7 VOC 400 MOhm Start Voltmeter Astat peDaMeter_Pis 33 13 33 PM By switching to the stand alone voltmeter and selecting DCVG as the reading mode you can view the delta V ON and delta V OFF readings as well as the calculated by the DA Meter software value for the DCVG voltage delta V ON delta V OFF See our DCVG Training Manual DA Meter Version The screen shown below is an example screen for operation in the DCVG voltmeter reading mode after clicking on the Start Voltmeter button Yoltmeter DCVG ON m OF mv DCYG im 16 5 76 1 Cycle ms se off 300 5 7 VOC 400 MOhm
12. Port Settings Port B Settings 129 Step 4 Click or tap on Port A Settings or Port B Settings This will allow you to configure either Port A or Port B for NMEA data output The specific port that you ll configure to output NMEA data Port A or Port B will depend on which of the Pathfinder receiver units you are configuring for application with the DA Meter and whether or not you would like to have the DA Meter signal the receiver to perform GPS tracking only when a survey application requires GPS data as opposed to the receiver continuously tracking the GPS signals even when not required to do so by the DA Meter For both the XR and XRS receivers you can select to configure either Port A or Port B for NMEA data output The important issue with regard to the XR and XRS receivers is the connection cable itself If you would like the DA Meter to signal the GPS receiver when GPS tracking is required by the DA Meter during particular survey applications you would select cable number 30231 00 to connect the receiver to the DA Meter This is a power saving mode of operation for the GPS receiver since when GPS tracking is not required by the DA Meter the GPS receiver will be in sleep mode which is a low battery power consumption mode Conversely if you d like the GPS receiver to be continuously tracking the GPS signals at all times you would select cable number 30945 With this cable the DA Meter do
13. applications since these represent relatively slow response settings Such settings provide a higher level of AC filtering but at the expense of speed of response Rather than the response time of 80ms for the 5 7V range these settings have a response time greater than 1 second Consequently such settings are not appropriate for fast current interruption cycles ie interruption On and Off times shorter than 1 second as true On and Off potentials would not be recorded Step 27 Pull up Active Survey Screen By tapping on the OK button on the Voltmeter Settings screen the active Survey screen would appear and you would be ready to proceed with your DCVG survey An example starting active Survey screen is shown below Survey Survey Options Help 1 2 00_0 25 9 mnvocve Dist Fom kkkk Start Dist From Known ki Station Range 5 7 DC 400 MOhm GPS Status No Data Geo Feat Device Mark Lreaa _ GPS Datal Log GPS ndo Flaq Flag Astat preDaMeter_PLe Pe 2 57 aM In the above active DCVG survey screen the direction of the arrow pointing to the left or pointing to the right depends on the polarity of the DCVG voltage being measured In the above case the voltage being measured was positive which produced an arrow pointing to the left The opposite would be true if the DCVG voltage reading had been negative ie the arrow would point to the right Location
14. ie interruption On and Off times shorter than 1 second as true On and Off potentials would not be recorded Step 30 Pull Up Active Survey Screen Tap once on the OK button on the Voltmeter Setting screen or the GPS Settings screen which will pull up the Survey screen shown below 43 Survey Survey Options Help es Location 2 00 0 0 0031 v On List Fom a an n a wes j a Known ieni a aa 5 7 YDC 400 MOhm Status No Data Device aPs Data Log GPS pnao Flag FLag stat soaneter ps CER 9 59 aM E n paneter _PLS As voltages are recorded by the DA Meter by either tapping on the Read button on the Survey screen or by pressing the appropriate cane push button the Distance From Start total distance from the start of the survey parameter will increase in increments of 2 5 feet or whatever the Distance Per Reading value was that was entered back at Step 16 Distances will be in meters if the metric option was selected Also the Distance From Know Station parameter will increase in the same increments as voltages are recorded The difference in this case however will be that when each known station is registered this distance parameter will begin again at zero In other words this will show the distance you are assumed by the DA Meter to have traveled from the last known station that you encountered and registered You are now read
15. see below Since there are 4 programs contained within the Installer EXE folder there will be 4 installation steps that you will go through during this process The programs will be re installed in the following order 1 The Voltmeter Program 2 The Site Survey Program 3 The Pipeline Survey Program 4 The DA Meter Driver Program 11 First double click on the DA Meter Installer EXE icon on the above window which will pull up the Installation Wizard Next click on the Next button on the Welcome window and then click on the Next button on the Start Installation window The installation program will first check to see if the voltmeter program is currently installed or not on your DA Meter Even if the voltmeter program is found to be currently installed in which case you will see the window shown below appear you should click on the Yes button on this window particularly if you are installing updated software as there may be an update to the voltmeter program Applications Already Installed MC Miller Co Inc MCMYoltmeter is already installed Do you want to proceed with the re installfupgrade Yes No The window shown below will then appear Installing Applications Install M C Miller Co Inc MCMYoltmeter using the default application install directory Yes No Cancel Click the Yes button on this window which will pull up the window shown below Installing Ap
16. Astat PeeDaMeter_PLs 32 TET As can be seen from the above screen the delta V ON reading is 59 6mV and the delta V OFF reading is 16 5mV Consequently the DCVG voltage is 76 1mV This is an example of a cathodic anodic anomaly in which case current is flowing away from the pipe at the defect location into the soil during the OFF part of the current cycle but the defect is cathodically protected when the impressed CP current is ON current is flowing to the defect location 97 This is important information that can be obtained with the DA Meter in this DCVG voltmeter reading mode without having to go through the process of marking a defect as is the case when you are performing an actual DCVG survey see our DCVG Training Manual DA Meter Version The Set Zero button on the above screen also represents a useful feature By placing the reference electrodes on the ground close together away from any voltage gradient fields and tapping once on the Set Zero button the voltmeter will eliminate any offset that might exist between the two reference electrodes which is important when measuring potential differences between two electrodes as is the case in DCVG surveys DCVG GPS Sync This voltmeter reading mode is similar to the DCVG reading mode described above except that in this case the High and the Low voltages are sampled each cycle at precise times controlled by GPS receivers Again as was
17. C P Accept Save Survey Walking Direction Increasing Metric NOT selected Survey Survey Options Help vn A Survey Type Trigger CIS vi Rectifier Mode Cycle ON OFF v Cane Button s Allowed To D C P Survey None Left Right Survey Walking Direction Accept Increasing O Decteasng Accent gt save cat once during iritial setup PRDAMeter PLE B ho 9 22 AM Step 9 Make Rectifier Mode selection In the case where a pipeline is cathodically protected via an impressed current current flow to the pipe from a sacrificial anode driven by an external DC voltage source the rectifier DC voltage source is typically always ON so that the line is continuously protected However with current flowing in the soil to the pipe the pipe to soil voltages being measured during a CIS will include any voltage drop IR drop occurring in the soil itself 24 If a large amount of current is flowing in the soil and or the soil has a high resistivity the magnitude of the voltage drop IR drop could be significant Consequently it is important to measure the actual pipe to soil potential voltage with no current flowing in the soil with a view to establishing that the pipe is at a sufficiently negative potential at least 0 85 Volts with respect to copper sulphate reference electrodes The problem is that the rectifiers DC voltage sources cannot be switched OFF for the duration of CIS measure
18. MCM s ProActive software program by selecting the specific devices that will comprise the route and setting up the order in which the devices should be tested during the route In addition the data to be gathered at each type of device along the route are scripted in the ProActive program The processes involved with scripting routes including scripting the actual device readings to be taken at each particular device are outlined in our ProActive Training Manual Once a route has been scripted the scripted data route information can be downloaded from the computer housing the ProActive software program to a data logger such as the DA Meter Once the scripted route data are stored in the data logger s memory the operator can follow the script of the route on the data logger to perform the site survey The operator is directed to each site in turn on the route in a prescribed order and is prompted to collect the appropriate data either readings or observations at each site on the scripted route 101 IV 2 How to Load the DA Meter with Scripted Route Data As mentioned above in Section IV 1 scripted data route information is created by means of the ProActive software program The following process assumes that a scripted route has been created and that your objective is to load the scripted route data onto your DA Meter data logger with a view to performing a site survey Step 1 Establish a
19. Not Started SU11 Offshore Rig GPS Date Finished Not Rnished Uil Valve Status SU11 Tower _ Indicator V Enable Current Interuoticn 5U11 Test Point a f ee oe fA Settings C Incomplete ony Show All O Show Nearest i start Site Surveys a B 11 13PM As can be seen from the above Survey Info screen our example route contains 17 sites or 17 devices and the types of sites are listed on the window All 17 sites can be viewed by scrolling down the bar on the right hand side of the window This screen will indicate the date the site survey was started the Started field and will also show the date the survey was completed the Finished field As can be seen from the above screen none of the sites on this route have been examined as yet 0 of the total sites have been examined so far If some of the sites had been examined already there would be a number indicated in the Complete field If this were the case you might want to place a tick in the box labeled Incomplete only in which case only the sites that remain to be examined on the route would be listed on the above screen The number in the Non Compliant field which is presently zero will indicate the number of sites that are non compliant based on the readings that are logged on the survey relative to the allowed variances established during the scripting process on the ProActive side So for example if t
20. PC or server following the performance of survey measurements Charging is accomplished using the AC Adapter supplied with the data logger a DC vehicle charger unit is also available The charger unit is connected to the 9 pin serial communication port COM 1 Port on the top side of the data logger via an adapter plug that allows both the charger cable and a 9 pin serial data communication cable to be simultaneously connected to the DA Meter As mentioned above since our survey application programs are stored in a volatile memory on the DA Meter these programs need to be re installed whenever the main battery pack and its backup have been allowed to fully discharge The main battery pack will fully discharge from a fully charged state in about a 3 week period with the unit switched off The CD supplied with the data logger can be used to re install the survey application programs via your PC by following the installation wizard instructions However the CD version can quickly become out of date and it is advisable to download to latest version of the DA Meter software from the M C Miller website via the Support page The status of the DA Meter s battery power at any given time can be checked to make sure that the battery has sufficient charge to conduct a survey The procedure used to check battery status is provided below How to check the batteries gt Double Tap on the My Handheld PC icon on the desktop scre
21. ProActive Training Manual Single User Version The particular software application program required to run Pipeline Surveys on the DA Meter is called the DAMeterPLS Pipe Line Survey Program and we describe the use of this program in detail in Section III In the case of Site Surveys Scripted Routes are downloaded onto the DA Meter from ProActive having been created in ProActive and in turn completed site surveys are transferred back into ProActive for management of the collected data The software application program required to run Scripted Site Surveys is termed the DAMeterSS Site Survey Program and in Section IV we describe in detail how to use this program on the DA Meter to perform Scripted Site Surveys SECTION I OPERATIONAL ITEMS II 1 Keyboard Use A schematic illustration of the DA Meter s keyboard layout is shown in Figure 1 below The keyboard on the DA Meter is for the most part self explanatory The only combination of keys that needs to be employed is that combination required to reboot reset the unit see Section II 3 The power button is located on the keyboard as shown in the center of the top row of buttons The unit is switched on and off via this power button Press once for ON and once for OFF ba ls KE E eo wD D E E o TIETo A bn w EMm m ao ao o CP GD D jon S D e So cD cH fm fey Cl ce ci Gh GD 6 i DBDovoanwooeaoano aa Cai ac em A CH OD 7
22. are using the MCM GPS unit on your DA Meter and current interrupter switches equipped with GPS units were being employed on your rectifiers In this case voltage readings 40 High Low readings are synchronized with the current interrupter switching timing With this voltmeter reading mode selected the screen shown below will appear Setup 5 of 5 Voltmeter Setting Read Mode SEE Range 5 7 VOC 400 MOhm TE e GPS Settings On F700 g off foc Astat preDaMeter_PLe D toe 10 14 am EA Again you would make your selection of ON and OFF cycle times Also in this case you would tap on the GPS Settings button which would bring up the screen shown below Survey Survey Options Help Setup 5 of 5 Voll GPS Sync On Off Settings Cn Delay fiso mS Read Mode GPS Port com 1 Downbeat Each Minute v M cyce Start On gt Off H a Astat preDaMeter_PLE eo o z0r A You are being asked here to make several selections First select the type of GPS unit you will be using currently only the MCM GPS unit can be used in the GPS Sync voltage reading mode 41 Next enter your On Delay and your Off Delay selections by tapping in the appropriate field and typing in the requested delay time in milliseconds These delay times are employed so that any spiking in the voltage waveform that might occur as the rectifier current is sw
23. arises due to the fact that in this mode the voltmeter is operating outside of the pipeline survey parameters and is being used in an independent non data logging capacity The Red and the Black banana plug terminals on the top side of the DA Meter can be used to read voltages or alternatively if an MCM data probe reference electrode having a 5 pin connector socket is being used the data probe will be connected to the 5 pin socket on the top side of the DA Meter which will connect to the negative side of the voltmeter and the Red banana plug terminal will be used to connect to the positive side of the voltmeter By tapping on the Voltmeter button the screen shown below will appear depending on previous settings Voltmeter ONfOFF ON lo 0000 Read Mode Cycle ms 5 7 VOC 400 MOhm Off foo Astat peDameter PLS BF ts aioli To make voltmeter settings changes click on the Stop Voltmeter button which will activate settings selections as shown below Voltmeter ONfOFF ON 0 0009 Read Mode Cycle ms ON OFF 7 Range 5 7 YEC 400 MOhm 7 93 If other voltmeter settings are required to make a reading you can tap on the pull down list arrow buttons in the 2 fields shown above Read Mode and Range and make your selection choices You can also change the On and the Off times associated with the current interruption cycle if necessary To apply any voltmeter
24. available for the cane buttons depends on the survey mode selected in Step 6 Trigger mode or Continuous automatic mode If the Trigger CIS mode is selected the screen will appear as shown below Survey Survey Options Help vn A x Setup 1 0f 5 Survey Type Trigger CIS Rectifier Mode Cycle ON OFF Ty L Use Metric Cane Buttonis Allowed To rSurvyey Walking Direction Increasing O Decreasing Read Flag Read pi DAMeter_PLS 99 20 aM For the above screen the pull down list arrow button in the Survey field was tapped to reveal the 4 choices for the push buttons on the pair of canes to be used in the Trigger CIS the left cane held in the left hand with the left thumb operating the left cane button and the right cane held in the right hand with the right thumb operating the right cane button Manual Triggering of Readings The left and right cane buttons can both be selected to read voltages read read meaning that as the operator walks down the pipeline alternately contacting the soil with the left and right canes a voltage recording will be made when either cane is triggered Alternatively one of the canes can be selected to read voltages while the other is selected to register the location of a survey flag survey flags are typically located every 100 feet down the length of a pipeline This would be the flag read or read flag choice In this case the push button on the cane selected to r
25. box is ticked GPS position data will be logged automatically when SP anomalies are marked Auto Log GPS By tapping on the drop down menu button in the Auto Log GPS field the selections available will be displayed as indicated below Survey Survey Options Help AC System eon 7 GPS Type NMEA gt C Diferential GPS Required GPS Port Com 1 Ty O Use s for altituce V Lag GS at Flags V Log G 5 at DCP Feature Every Reading P M Log GS at Side Drain Ancrmaly Every 2 Readin vary 5 Raxinl Cancel g DAMeter_PLS AHF 10 26 AM By selecting one of these options you can elect to have the GPS position data logged automatically at every survey reading at every second reading at every fifth reading at every tenth reading or not at all never at survey readings Step 12 Finally on the above screen select the electricity supply operating frequency of the country in which you are performing the surveys 60Hz or 50Hz For the U S select 60Hz Step 13 Tap once on the Next button 84 The specific screen that will appear Setup 3 of 5 screen will depend on whether or not you selected Metric units The screens shown below will appear for the non metric and the metric cases respectively Survey Survey Options Help vn IA Setup 3 of 5 i Flag Dist Error Limit o Name of Pil Dist Per Reading 12 5 ft Valve Segment Distance Between Flags 200 ft Statin
26. communication cable to a PC in order that the survey data recorded by the DA Meter can be uploaded to a PC See our DCVG Training Manual DA Meter Version for information on how to transfer upload DCVG survey data to a PC for database management 69 II 5 How to Set Up the DA Meter for Combined DCVG CIS Survey Applications Introduction It is possible to collect both DCVG survey data and CIS data from a section of pipeline on a single pass by using the MCM Switch Box in conjunction with the DA Meter In this combined survey mode at each measurement location the DCVG data are first recorded and then the Switch Box performs a switching operation which allows the CIS pipe to soil voltages to be recorded When the CIS data have been recorded the DA Meter will beep which is the signal that you can move the reference electrodes to the next measurement location Since as discussed below you will be effectively only using one reference electrode one data probe to collect the CIS data the left hand red handled data probe that will be positioned over the pipe the CIS data will be determined from the cycle of the pipe to soil waveform that is sampled immediately after the trigger event This explains why it is imperative that the data probes remain in contact with the soil for at least one cycle after the trigger Again the DA Meter will beep to advise you that the CIS data have been recorded and that you can proceed to th
27. connect to the negative side of the voltmeter and the Red banana plug terminal will be used to connect to the positive side of the voltmeter If other voltmeter settings are required to make a reading you can tap on the Settings button and make your selection changes before taking the readings The screen will be as shown below 120 Meter Settings Range 5 7 VDC 400 MOhm Style on off 7 Shunt Type On Time ms 700 Electrode Type Off Time ms 200 Calculation Mo yars fom pooo Cancel 3 j Astat Site Surveys Fe 201 AM tal By tapping on the pull down list arrow buttons in the Range and Style fields you can make selections that are appropriate for the type of voltage reading you are making Note Caution has to be exercised if any of the voltmeter ranges beginning with the number 4 for example 4V 400mV or 40mV are selected since these represent relatively slow response settings Such settings provide a higher level of AC filtering but at the expense of speed of response These settings have a response time greater than 1 second Consequently such settings are not appropriate for fast current interruption cycles ie interruption On and Off times shorter than 1 second as true On and Off potentials would not be recorded A minimum On or Off time would be on the order of 1 5 seconds if one of these range settings is selected Finally if your desired data involves a calcul
28. expected between recordings for the DCVG survey Typically in DCVG work this expected interval distance is 5 0 feet or 2 meters Step 16 Select Survey Flag Interval Distance Between Survey Flags 57 By tapping once in the field in the Setup 3 of 5 screen labeled Distance Between Flags you can type in the survey flag interval distance between survey flags for the section of pipeline being measured Typically survey flags are located at 100 feet or 30 meter intervals Step 17 Select the maximum permissible error between the actual number of recordings made between 2 survey flags and the expected number of recordings By tapping in the field labeled Flag Distance Error Limit you can type in the maximum permissible error For example the maximum permissible error is indicated as 20 on the above screen If the recording interval is expected to be 5 0 feet and the survey flag separation is 100 feet that means that 20 recordings are expected If however only 15 recordings are actually made between survey flags an error window will appear on the screen since there is a 25 difference between the expected and actual number of recordings made No error window will appear if the difference is less than 20 for this example ie you could have a minimum of 16 recordings and a maximum of 24 recordings between survey flags to stay within the 20 max error allowance Step 18 Select whether or not you would li
29. make use of correction messages transmitted by the WAAS system The WAAS system works well in open areas throughout North America however in some locations such as heavily wooded or mountainous areas it is difficult to receive a correction message from the WAAS system due to the present positioning directly over the equator of the only two geo synchronous broadcast satellites currently in the WAAS system Consequently until additional broadcast satellites are added to the WAAS system making it equally effective in all regions of North America it may be necessary for you to use another type of GPS receiver other than the MCM GBPS receiver in order to access the correction message transmitted from either the Satellite system or the Beacon system depending on your particular location 124 For instance Trimble GPS Pathfinder receivers are commonly used to access correction messages available via commercial subscriber satellite systems such as OmniSTAR and LandStar or via a system of ground based beacons Coast Guard system If you plan to use a Trimble GPS Pathfinder receiver unit in conjunction with your DA Meter there is a configuration process that you need to perform in order to set up the GPS unit so that appropriate data will be delivered to the DA Meter from the receiver MCM GPS receivers are automatically configured for use with the DA Meter A GPS Pathfinder receiver is capable of outputting NMEA dat
30. readings sampled during both the On and the Off portions of the pipe to soil voltage waveform cycle that will be used by the data logger to determine average On and Off pipe to soil voltage values in the case where the voltmeter is reading in the Min Max mode Typically 4 sampled readings are used You can elect to have 4 or 5 digits displayed for the voltmeter readings on the prompt screens by checking the 4 or the 5 radio button in the Voltmeter Digits field You can indicate the type if any of GPS receiver that you will be using on the scripted route By tapping on the pull down list arrow in the GPS Type box the Global Settings screen will appear as shown below Global Settings AC Cych Rate ka Digits 5 4 5 GPs Type None iy COML v E Use GP rer Use MefNMEs li V Show S a V Show Mile Posts Moving Avg Cnt 4 Apply changes to all surveys start site Surveys ee 201mm Al As can be seen from the above screen there are 4 choices for GPS Type None This means that a GPS receiver is not being used MCM This means that an MCM GPS receiver is being used NMEA This means that a GPS receiver other than the MCM receiver 108 that is capable of outputting NMEA data is being used Manual This means that location data will be entered manually when the GPS button is pressed on the prompt screens during a scripted site survey COM 1
31. such as slashes or as part of a filename You will be alerted if you try to use any invalid characters Step 5 Tap once on the OK button The window shown below will appear This is the first of 5 so called setup windows Survey surver options tee NE E Setup 10f5 Survey Type Trigger AIS iw Rectifier Made Cycle ON OFF v Cane Button s Allowed To D C P Survey _ OCVG Sidedrains in CIS Surveys None Left Right Ca A Survey Walking Direction See Flag Read x Ircreasing Decteasing Accent gt Save cat once during iritial setup Cancel Pig DAMeter PLE Bt 1120M Step 6 Select Survey Type For CIS measurements there are 2 options for type of survey Trigger CIS and Continuous CIS Other survey types are available as can be seen by tapping once on the pull down list arrow button in the Survey Type field as shown below Survey Survey Options Help 0 A Cycle ON OFF v C Use Metric Survey Walking Direction Increasing Decteasng cat once during iritial setup Fm DaMeter_ Pic je Uom As can be seen from the above screen DCVG combined DCVG CIS and Surface Potential Surveys are available for selection however for CIS Only surveys either Continuous CIS or Trigger CIS should be selected by tapping once on the selection 18 In Trigger CIS mode voltage recordings are triggered by the operator pressing on the push button swit
32. the case with the ON OFF GPS Sync reading mode this mode can only be selected if you are using the MCM GPS receiver unit on the DA Meter AND you are using rectifier current interrupters with integrated GPS units If this mode is selected the GPS Settings button will again appear as was discussed for the case of the ON OFF GPS Sync mode The GPS Settings selections will have to be made as described above for the ON OFF GPS Sync mode option Waveform Analyzer A second application of the stand alone voltmeter is as a waveform analyzer To use this function either tap once on the Waveform button WAVE button at the top of the Survey screen or tap on Survey Options and then tap on Wave The screen shown below will appear depending on the previous settings 98 Display Moge On jor x On Time ms 700 Off Time ms Voltage Rance pe DAMeter PLs By tapping on the Read button on the above screen you can view for example the pipe to soil voltage waveform at a test site assuming that you have the appropriate cable connections made to the DA Meter A typical waveform would be as shown in the screen below Waveform Untitled Display Moge 1 0124 Dn Off On Time ms roo off Tene ms 300 ERBY asl el E voltage Range 0 00 Sec 1 00 Sec 5 7 W Oc 400 MOhm Y Notes 0 900 Volts Exit Since we set up a 700ms ON and a 300ms OFF rec
33. you can set the site location by logging GPS data at the site by tapping on the GPS Data button and then tapping on the Set Site Location button If a set of driving directions was entered on the ProActive side for this site the Driving Directions button would be active and by tapping on this button you could view information on how to locate this site By tapping on the Done button located on the Driving Directions screen you would be returned to the Site Info screen As can be seen from the above Site Info screen our Valve Site has a total of 7 prompts Each prompt will come up in turn starting at the top of the list until all prompts for this site have had a response ie data have been entered The Goto Prompt button is used to initiate the batting order sequence The first of the 7 Prompt screens for our Valve Site is as shown below We are being prompted here to record pipe to soil voltages 112 SU11 Valve Pipe to Soil 4V 10 MOhm On Off Next_Site gt gt lt Prior Prompt Copper Sulfate Next Prompt Meter Current Reading Prior Reading 771 04 1 1000 On 0 6655 Y Off 1 1025v On 0 8679 v Off Remarks Site Info Settings Voltmeter 4ookup Help stat site Surveys FeeG F 11 28 Pu As can be seen from the above screen the data logger is reading the ON and OFF pipe to soil voltages at the Valve Si
34. your DA Meter whenever the main battery and its backup have been allowed to become fully discharged or whenever a Hard Reset has been performed on the DA Meter The re installation process is straight forward and involves the use of the CD that came with your DA Meter or you can download the latest version from the Support page on the M C Miller website recommended Note When you receive a software update from MCM and you ve installed the updated software as described below you should save the updated software on your PC s hard drive so that you can re install the most recent software in the event that you need to perform a software re installation in the absence of an Internet connection How to Re install the Software Application Package onto your DA Meter from the CD The first step is to connect your DA Meter to your PC or laptop via the 9 pin serial data terminal COM 1 Port located on the top side of the DA Meter top left corner looking screen side up Next switch on the DA Meter and make sure that you have an established ActiveSync connection between the DA Meter and your PC You will have to install Microsoft s ActiveSync program on your PC if you haven t already done so to permit two way communications between the DA Meter and your PC Next insert the DA Meter Software Installer CD into the CD drive on your PC and pull up the contents of the CD by clicking on My Computer and double click
35. 0C 400 MOkm The tick beside the Use DCVG CIS Switch option indicates that this option has been enabled III 6 How to Connect the DA Meter with the other Test Equipment for Combined DCVG CIS Applications The cable connections for Combined DCVG CIS applications employing MCM test equipment are illustrated below in Figure 7 173 DA Meter and Equipment Hook up DCVG CIS E Tral Wire Hip Pach Figure 7 Cable Connections for Hook Up of MCM s Combined DCVG CIS Survey Test Equipment As can be seen from Figure 7 a pair of canes reference electrodes is illustrated the left hand cane RED handled cane and the right hand cane GREEN handled cane The canes are placed on the soil in the Perpendicular configuration see DCVG Training Manual DA Meter Version As discussed in the Introduction to this section only the push button on the left hand cane red handled cane is enabled for Combined DCVG CIS applications This cane is positioned directly over the pipe and it is connected to the MCM Switch Box via the black band cable The black band cable is connected to the Switch Box at the 5 pin terminal labeled as CIS The right hand cane green handled cane is connected to the Switch Box via the red band cable and this cable is connected to the Switch box at the 5 pin terminal labeled as DCVG 74 The cable connecting the DA Meter to the Swi
36. An example starting active Survey screen is shown below tccstiol OO 1 9 my Dist Fom fikk Start Prior Dist Frem mV Known p Station Range 5 7 VDC 400 Makma ft eee eee GPS Status No Data Geo Feat Device Mark reaa _ GPS Data Log GPS bde Flaq Flag pm DAMeter PLS ASW 9 15 AM 90 As SP voltages are recorded by the DA Meter the Distance From Start total distance from the start of the survey parameter will increase in increments of 5 0 feet or whatever the Distance Per Reading value was that was entered back at Step 16 Distances would be in meters if the metric option had been selected Also the Distance From Known Station parameter will increase in the same increments as voltages are recorded The difference in this case however will be that when a known station is registered this distance parameter will begin again at zero In other words this will show the distance you are assumed by the DA Meter to have traveled from the last known station that you encountered and registered You are now ready to perform a Surface Potential survey You are referred to our Surface Potential Training Manual DA Meter Version for information and recommendations on how to actually perform SP Surveys using the DA Meter This Training Manual also provides an overview of the physical principles associated with SP Surveys II 8 How to Make Ch
37. DA METER USER S MANUAL Software Version 1 4 0 IMC MILLER co M C Miller Co Inc 11640 U S Highway 1 Sebastian FL32958 U S A Telephone 772 7949448 Website www mcmiller com MANUAL CONTENT SECTION I INTRODUCTION ccceceececeeeeeeeeenes 4 SECTION I OPERATIONAL ITEMS 1 Keyboard Users E r aA T 5 ay Battery life and How to Check Battery Status 0 0084 7 3 How to Reboot Reset the DA Meter c ce cccc ee eee ee ees 8 How to Re install the Survey Application Programs from our CD and how to Install our Software Updates 4 9 SECTION II USING THE DA METER TO PERFORM PIPELINE SURVEYS III 1 How to Set Up the DA Meter for CIS Applications 15 III 2 How to Connect the DA Meter with the other Test Equipment for CIS Applications y crccrcscinatoutsesevneecerntiemtearaetaads 45 III 3 How to Set Up the DA Meter for DCVG Survey PDP CATIONS rate dstenie wah cares e Sid inate e a E EEE a 48 III 4 How to Connect the DA Meter with the other Test Equipment for DCVG Survey Applications cc ccc eee eeeeeeeeeees 67 II 5 How to Set Up the DA Meter for Combined DCVG CIS Survey Applications visas a tces be aaicak am aaaeedvenvacnaceenns 70 III 6 How to Connect the DA Meter with the other Test Equipment for Combined DCVG CIS Survey Applications 73 II 7 How to Set Up the DA Meter for Surface Potential Surv
38. DCVG voltage value displayed on the DA Meter survey screen should stabilize assuming that the data probes are making good electrical contact with the soil and a DCVG voltage recording can be triggered Consequently the rate at which DCVG voltages can be captured and saved depends critically on the interruption waveform period This is a particularly important issue in the case of large period waveforms For example if a 10 second On and a 2 second Off waveform is employed 12 second waveform period stabilization times up to 12 seconds could be possible before each DCVG voltage recording can be made In contrast the stabilization period would be only on the order of one second for a 700ms On 300ms Off interruption cycle Select the Voltmeter Range and Input Impedance Settings By tapping on the pull down list arrow button in the Range field you can select the voltmeter range and input impedance settings for your application The recommended settings for the voltmeter for DCVG surveys are 5 7 Volts full scale and an input impedance value of 400MOhm These settings provide a relatively fast response time 80 ms which is important in rectifier current interrupted applications and also a relatively sensitive scale with regard to the magnitude of the DCVG voltages that you ll be measuring 64 Note Caution has to be exercised if any of the ranges beginning with the number 4 for example 4V 400mV or 40mV are selected for DCVG
39. M GPS receiver is being used NMEA This means that a GPS receiver other than the MCM receiver that is capable of outputting NMEA data is being used Manual This means that location data will be entered manually when the GPS button is pressed on the survey screen during a CIS Select the appropriate choice by tapping once on your selection Step 14 Select GPS Options 30 On the far right hand side of the Setup 2 of 5 screen as shown above there is a group of boxes associated with a GPS accessory If a GPS accessory has been selected for use with the DA Meter for a particular CIS all or some of the functions available can be enabled boxes ticked A box can be ticked or unticked by tapping once on the box The options available are as follows Differential GPS Required This box should be ticked if you only want differentially corrected real time corrected GPS data to be logged by the DA Meter If this box is ticked only GPS data that has been derived using a correction message signal in real time will be logged by the DA Meter If this box is left unticked it means that you will allow the DA Meter to log either standard GPS data or differentially corrected GPS data depending upon what is being output by your receiver at any given time Please note that if this box is checked ticked GPS data will not be logged unless a real time correction signal has been received by the correction message receiver componen
40. Number or Name By tapping once in the box labeled Valve Segment you can type in the valve segment number or name if known Step 20 Provide the Starting Location Information Tap the pull down list arrow button in the Starting Location field which will reveal the options available regarding how you would like location information to be displayed The Setup 3 of 5 screen will be as shown below for the non metric case Survey Survey Options Help vn A Setup 3 of 5 il Flag Dist Error Limit Name of PL Dist Per Reading i i 9 Valve Segment Distance Between Flacs Stating Location Auto Pacing mede 7 040 0 Station Number e ticot once during pusilla Numner vn oases PIu oam You can select to have location information displayed on the survey screen as station number feet or milepost station number meters or kilometers for the metric case Whichever selection you make here will determine how you enter your starting location information 87 For example if your pipeline locations are represented by station numbers you would select Station Number from the drop down list and you would enter a starting location for the survey in the form of a station number If you do not know the station number where you re beginning your survey enter 0 0 0 As an example if you are working on pipeline ABC within valve segment 45 and you are about to begin a SP survey at stati
41. P 10 51 AM To make allowed changes tap on Settings on the above menu tap on Change Global Settings and proceed to make any desired changes To simply view your Set Up selections you can tap on View Settings on the above menu after tapping on Survey Options III 9 How to Use the DA Meter as a Stand Alone Voltmeter Waveform Analyzer Pipeline Survey Program The DA Meter can be used as a stand alone voltmeter waveform analyzer in situations where such applications maybe warranted in association with the performance of a pipeline survey For example at devices on your pipeline survey where you can make electrical contact with the pipeline you might wish to confirm that the CP rectifiers are switching On and Off at the prescribed cycle rate and that the IR drop magnitude is sizable enough for the On Off DSP reading mode to be applicable for example Also you might want to make sure that all of the rectifiers having an affect on the pipeline involved with your survey are being switched On and Off in a synchronized fashion Or you might want to check certain readings that are not an integral part of the survey itself You can use the DA Meter as a stand alone voltmeter by tapping on the Voltmeter button VM button on the top menu bar of the Survey screen or by tapping on Survey Options and then tapping on Voltmeter 92 The stand alone term
42. Pacing Mede 71 fo 5 0 st ion Number c set once during Previous Next Astat p DaMeter PLS D Fie 9 27 am A You can select to have location information displayed on the survey screen as station number feet or milepost station number meters or kilometers for the metric case Whichever selection you make here will determine how you enter your starting location information 59 For example if your pipeline locations are represented by station numbers you would select Station Number from the drop down list and you would enter a starting location for the survey in the form of a station number If you do not know the station number where you re beginning your survey enter 0 0 0 As an example if you are working on pipeline ABC within valve segment 45 and you are about to begin a DCVG survey at station number 12 0 0 your Setup 3 of 5 screen would be as shown below Survey Survey Options Help vn A Setup 3 of 5 Name of PIL ABT yale Segment Flag Dist Error Limit Dist Per Reacing Distance Between Flags t 45 Stating Location SA 12 0 0 Station Number w set once during initial satup F oameter Pis D F uo 9 29 AM Step 22 Tap once on Next button on Setup 3 of 5 screen The Setup 4 of 5 screen will appear as shown below Survey Survey Options Help vn ee Set up 4 of 5S Work Order Technician Name Comments t Descriotion File Name fico
43. Pause Increasing Decreasng accent gt save FERRE Pause Fla cat once during iritial Flag sean Cancel Pause Pause 27 AM Bf DAMeter_PLS 2 36 The 4 choices for the set of two canes in the Continuous CIS mode are revealed in the Survey field by tapping once on the pull down list arrow The 4 choices are shown in the screen above In this case one of the cane buttons can be selected to effect a pause in the continuous automatic every so many seconds as prescribed voltage recordings while the other cane button is selected to register survey flag locations flag pause or pause flag Alternatively both cane buttons can be selected to register flags or to affect pauses The pause cane would also act as the start or restart cane Cane Button Functions At Device Locations Devices are defined as specially identifiable entities that exist along the length of the pipeline Examples of Devices include rectifiers test stations valves etc 21 For both CIS modes Trigger and Continuous a cane button function selection selection will apply to both left and right canes has to be made with regard to Data Collection Points see D C P field in above screen A Data Collection Point is a Device location point In this case there are 3 choices None Accept and Accept and Save Your selection is made by tapping once in the circle beside your choice If none i
44. R drop magnitude is sizable enough for the On Off Pairs DSP reading mode to be applicable for example Also you might want to make sure that all of the rectifiers having an affect on the pipelines involved with your site survey are being switched On and Off in a synchronized fashion 119 You can use the DA Meter as a stand alone voltmeter waveform analyzer by tapping on the Voltmeter button on the Site Surveys screen Route Selection screen or on a Prompt screen The stand alone term arises due to the fact that in this mode the voltmeter is operating outside of the site survey parameters and is being used in an independent non data logging capacity By tapping on the Voltmeter button the screen shown below will appear depending on previous settings 5 7V 400 MOhm On Off waerm 1 2459 V On 0 8657 V Off settings Asar Site Surveys pE 1 55 AM tal In the above case the stand alone voltmeter is reading the High and the Low pipe to soil voltages at a test station with the Range and Input Impedance values selected as 5 7V and 400MOhm respectively The Red and the Black banana plug terminals on the top side of the DA Meter can be used to read voltages or alternatively if an MCM data probe reference electrode having a 5 pin connector socket is being used the data probe will be connected to the 5 pin socket on the top side of the DA Meter which will
45. S Sync OnjOff Settings Read Mode Cn Delay 150 mS GPS Port com al I ON OFF Cycle sec Off Delay msg GPS Type ee Ma Downbeat Each Minute v M Cycle Start On gt Off PR DAMeter_PLE FP Ta 3 41 AM 62 You are being asked here to make several selections First select the type of GPS unit you will be using the MCM unit is currently the only choice for GPS Sync applications Next enter your On Delay and your Off Delay selections by tapping in the appropriate field and typing in the requested delay time in milliseconds These delay times are employed so that any spiking in the voltage waveform that might occur as the rectifier current is switched from ON to OFF and from OFF to ON does not become a factor in the voltmeter s determination of the true ON and OFF voltage values for each DCVG measurement For example if 150 ms was selected for the Off Delay the data logger would record the potential difference value sampled 150 ms after the rectifier current was switched from the ON to the OFF state Also if 150 ms was selected for the On Delay the data logger would record the potential difference value sampled 150 ms after the rectifier current was switched from the OFF to the ON state Finally select your current interrupter s Downbeat frequency As indicated by tapping on the pull down list arrow button in the Downbeat field there are 3 selection c
46. S data that have been derived using a correction message signal in real time will be logged by the DA Meter If this box is left unticked it means that you will allow the DA Meter to log either standard GPS data or differentially corrected GPS data depending upon what is being output by your receiver at any given time Please note that if this box is checked ticked GPS data will not be logged unless a real time correction signal has been received by the correction message receiver component of your GPS unit In most instances logging standard ie uncorrected GPS data would be preferable to not logging any GPS data Use GPS Altitude If this box is ticked altitude data will be included with the position data whenever GPS data is logged Note Altitude data on some GPS units is not particularly accurate in survey applications Log GPS at Flags If this box is ticked GPS position data will be logged automatically at flags when either the flag button is tapped directly on the Survey screen or when the push button on the designated flag cane is pressed 83 Log GPS at DCP Feature If this box is ticked GPS position data will be logged automatically at Devices or Geo Features when either the Device button is tapped on the Survey screen and a Device reading is logged or when the Geo Feat button is tapped on the Survey screen and a geo feature is registered Log GPS at Sidedrain Anomaly If this
47. Sie ee Menem Range 5 7 VOC 400 MOhm GPS Settings Astat preDaMeter_PLE EE 10 58 AM 42 The only additional information that needs to be supplied here is the type of GPS unit you will be using which you can select by tapping on the GPS Settings button Currently only the MCM GPS unit can be used in this voltmeter reading mode application Step 29 Select Voltmeter Range and Input Impedance By tapping on the pull down list arrow button in the Range field you can select the voltmeter range and input impedance settings for your application The recommended settings for the voltmeter for CIS are 5 7 Volts DC full scale and an input impedance value of 400MOhm These settings provide a relatively fast response time 80 ms which is important in rectifier current interrupted applications Also a 400MOhm input impedance setting eliminates reading errors associated with any high source resistance measurements Note Caution has to be exercised if any of the ranges beginning with the number 4 for example 4V 400mV or 40mV are selected for CIS applications since these represent relatively slow response settings Such settings provide a higher level of AC filtering but at the expense of speed of response Rather than the response time of 80ms for the 5 7V range these settings have a response time greater than 1 second Consequently such settings are not appropriate for fast current interruption cycles
48. Since the voltmeter in the DA Meter has a finite response time 80ms in the 400MOhm setting the transitions from High to Low and Low to High are not perfect right angled steps Also since the voltmeter samples the voltage only 50 times per second every 20 milliseconds any AC components of the waveform with a frequency higher than 50 Hz will be filtered out by the voltmeter 122 However these voltage waveforms are very useful with regard to confirming multiple rectifier synchronization for example and with regard to checking for On to Off and Off to On transition spikes To record a pipe to soil voltage waveform tap on the Save button on the above screen You are being asked here to establish a file in which the waveform data will be stored saved The name of this file will be the name you type into the Name box on the Save As window For ease of future retrieval when you upload your survey data to ProActive it is recommended that you use the same name as your survey filename with the addition of something like Wave TS 1 to the file name This would represent the waveform data recorded at Test Site 1 You should then tap once on the OK button which is located in the top right hand corner of the Save As window This process will save the waveform data in the DA Meter s CompactFlash memory for future retrieval by ProActive s driver and return you to the Waveform screen You c
49. a when appropriately configured which is the required output data type for a GPS receiver to work in conjunction with the DA Meter There are four types of Trimble GPS Pathfinder receiver units that can be configured to be compatible with the DA Meter using a software program called the GPS Pathfinder Controller The 4 receiver models are GPS Pathfinder Pro XR GPS Pathfinder Pro XRS GPS Pathfinder Power GPS Pathfinder Pocket MCM supplies a copy of the GPS Pathfinder Controller software program which you can use to configure your particular GPS Pathfinder receiver and this program is available on your DA Meter Installer CD The GPS Pathfinder Controller program is contained in the folder labeled Trimble GPS on the CD that came with your DA Meter By double clicking on the Trimble GPS folder a number of files will be available to you as shown in the window below 125 fex 21 Installer For Pathfinder H 206 Installer For Pathfinder Controller gt J PC Installer For Pathfinder k PFCwin pdf T PEE Adobe Acrobat Document Controller 316 KB Adobe Controller TechNote_PFController_NMEA w 7 How to Configure Trimble GPS Adobe Acrobat Document Pathfinder Receivers fer Us 7 KB Microsoft word Document As can be seen from the above window two PDF files are part of this package These PDF files are Trimble manuals that describe in detail the GPS Pathfinder Controller softw
50. accent gt Save cat once during iritial setup Cancel Pi DAMeter PLS DI ore AM By tapping once on DCVG the screen shown below will appear 51 fne o bve 0 v Rectifier Mode Cycle ON OFF C C jse Metric Cane Buttonis Allowed To D C P Survey i f f None Left Right Survey walking Direction Accent Increasing Decreasing Accent gt Save set once during iritial setup Cancel start pezoaMeter_Pus 3 0 00 AM Step 7 Select Rectifier Mode Select the Cycle ON OFF option from the Rectifier Mode field pull down list which is the required mode for DCVG surveys Step 8 Make Cane Button Functionality Choices Typically for DCVG surveys you would trigger DCVG voltage recordings using the right hand positive reference electrode and the left hand negative reference electrode would be used to designate the location of survey flags For this case your Survey selection for canes would be Flag Read as shown in the above screen The other options can be viewed by tapping once on the pull down list arrow button in the Survey field You can also use either cane button when recording voltages at D C P s data collection points devices to accept or accept and save a device reading as opposed to tapping on the accept or the save buttons on the screen For example with the selection as indicated on the above scr
51. ach position was fixed In addition the GGA string contains data that indicate whether or not real time correction was applied and how many satellites were involved for each position fix The Output Interval refers to the interval of time between the output of one string of NMEA data and the output of the next string of NMEA data by the receiver For application with the DA Meter an Output Interval of 1 second should be selected by clicking or tapping on the pull down list arrow in the box labeled Output Interval and selecting 1 Since our data strings contain position data GGA format and since we are requesting a new data string to be output by the receiver each second this means that the receiver has to be generating position data at least every second This issue brings us to the GPS Settings selection step step 8 Step 8 After clicking or tapping on the OK button on the NMEA Settings window click or tap on Settings again and this time click or tap on GPS Settings This will pull up the window shown below 133 GPS Settings Position Interval sec 1 v PDOP Mask SNR Mask Elevation Mask deg 115 0 v Velocity Filtering E Cancel Based on the discussion in Step 7 we require position data to be output every second and so your selection of Position Interval on the above window should be 1 second We recommend that the ot
52. an change the Voltmeter s settings range and reading mode if desired while in the Waveform observation mode by tapping on the pull down list arrow buttons in the fields labeled Voltage Range and Display Mode and highlighting your new selections Finally by tapping on the Load button on the Waveform screen a list of previously saved waveform files can be viewed and these files can be opened by tapping once on the file name To return to the Survey screen tap once on the Exit button on the Waveform screen 123 APPENDIX 1 HOW TO CONFIGURE TRIMBLE GPS PATHFINDER RECEIVERS FOR USE WITH THE DA METER a Introduction Although standard uncorrected GPS data only provide a position accuracy of around 15 meters real time corrected GPS data can result in a position accuracy of better than 1 meter making real time corrected GPS data more suitable for pipeline survey applications In order to output real time corrected GPS position data a GPS receiver has to be coupled with a correction message receiver which receives a correction message transmitted by one of three major systems namely the WAAS Satellite and Beacon correction message generating systems In most cases the correction message receiver is integrated with the GPS receiver in one unit although external correction message receivers are also used For example our MCM GPS receivers which have integrated correction message receivers
53. anges to Your Pipeline Survey Set Up Selections Once you ve setup the DA Meter for a particular pipeline survey as described in the above sections you can make changes to your setup selections with the exception of your Survey Type selection and the currently indicated Location If you have selected a Trigger Mode CIS for example you cannot change to a Continuous Mode CIS without setting up a new survey You can however make other selection changes For example if you examine the pipe to soil voltage waveform prior to beginning a survey highly recommended and discover that the IR drop magnitude is quite small or there is considerable noise on the waveform you might decide to switch the voltmeter reading mode from On Off Pairs DSP mode to On Off Pairs Min Max mode Or in another case you might decide to change the Distance Per Reading interval from 2 5 feet to 5 0 feet for example 91 To make setup selection changes tap on Survey Options at the top of the screen The screen will appear as shown below Surrey Settings N Lecation View Settings CtrhS mv DIVG Voltmeter Ctrl M Dist Fror Start Valdation CtrhL Wave CtrH Dist Fon Known Station Edit Survey Data Ctrl E GPs Stati Delete Last Reading Ctrl D 6 eo Fea 290 Comments Ctri O Restart Flags Ctrl F OC 400 MOF GPS Datal Log GPS bnde Flaq Flag CE
54. are program You can double click on these icons to view these documents In addition you will see 3 yellow folders which are labeled Installer For Pathfinder Controller You have the option of installing the GPS Pathfinder Controller program on either your PC or laptop or on your DA Meter itself Actually you can install the program on both your PC and your DA Meter if you wish Your Trimble receiver unit will have to be connected to which ever computer your PC or your DA Meter a handheld PC onto which you have installed the Controller program in order that the GPS receiver can be configured with your settings In this regard it would be advantageous to have the Controller program installed on your DA Meter since in this case you could make any adjustments in the field to the GPS receiver settings if required directly on the DA Meter itself In addition you could check on GPS position and receiver status right on the DA Meter at anytime The Installation Programs available on your CD allow you to install the Controller software on your PC or laptop and or on your DA Meter 126 b How to Install the GPS Pathfinder Controller software onto your PC The first step is to double click on the icon labeled PC Installer for Pathfinder Controller The next step is to follow the instructions associated with the Installation Wizard that will guide you through the simple installation procedure At the c
55. ata To type numbers or letters simply press the appropriate keys To type a space press the large Cs key at the bottom centre of the keyboard To delete characters you have just typed press the 29 BACKSPACE key To type capital letters or select the characters or functions shown at the top of each key hold down the L SHIFT key and press the appropriate key If you want to type several capital letters press the ti CAPS LOCK key and then press the appropriate letter keys When you have finished press the L W key again To start a new paragraph or to enter data when you have finished typing it press the large i ENTER key II 2 Battery life and How to Check Battery Status The DA Meter is equipped with a Lithium Ion rechargeable main battery pack as well as a backup battery also rechargeable Since typical battery life of the main battery pack is around 7 hours with the unit running it is recommended that the battery be recharged overnight each night when the DA Meter is being used on a daily basis You might also wish to carry a second battery pack for switch out It is also recommended that the DA Meter be put on charger when not in use so that the unit is always ready to go when needed When the battery is fully charged the charger will automatically stop supplying power to the battery so it is safe to keep the charger on It is also recommended that the unit be placed on charger when data are being uploaded to a
56. ated in ProActive for each site type and consequently different sites will have different sets of prompt screens IV 4 How to Upload Data from a Completed Survey from the DA Meter to ProActive After completing a route you can upload the site survey data to ProActive where the new data will be integrated with previous site survey data collected on the same route By doing so ProActive can compare data from one year to the next or from one bi monthly period to the next and raise flags if any sites have become non compliant for example To upload your site survey data you would re establish a communication connection between the DA Meter and your PC see Section IV 2 Step 1 and then open up ProActive on your PC By clicking on the Get Reads button on ProActive s main menu bar the window shown below will appear Data Logger Get Readings Data Logger DAMETER Route Franks SU101 Technician Frank o Survey Type annual Weather UNASSIGNED Description Completed z Status READY V Include Atmospherics L vse V Current Interruption x Exit 118 You would then select the name of the Route whose data you wanted to upload from your data logger In our example the route name is FranksSU101 Once the route name is selected the Technician and Survey Type fields will be filled in automatically based on the selections you made on the Load Routes window when you downloaded the
57. ation such as for example a voltage to current calculation involving a shunt or the use of an addend to compensate for using of a reference electrode other than the standard copper sulphate electrode you would enter the appropriate information for your measurement in the Calculation field Tapping on the OK button will return you to the voltmeter screen Waveform Analyzer A second application of the stand alone voltmeter is as a waveform analyzer To use this function tap on the Waveform button on the Voltmeter screen The screen shown below will appear depending on the previous settings 121 Waveform Diplay Moge onoff On Time ms Off Time ms faco Astat preDaMeter_PLe By tapping on the Read button on the above screen you can view for example the pipe to soil voltage waveform at a test site assuming that you have the appropriate cable connections made to the DA Meter A typical waveform would be as shown in the screen below Waveform Untitled Display Moge 1 012 On off v On Time ms roo Off Time ms 300 Des voltage Range 5 7 W Oc 400 MOhm Y Notes View Data Since we set up a 700ms ON and a 300ms OFF rectifier cycle in this example the pipe to soil voltage is High for 0 7 sec and Low for 0 3 sec as evidenced by the 1 second snap shot of the voltage waveform shown in the above screen
58. be the case for a High Low CIS Step 10 Tap once on the Next button The screen shown below will appear Setup 2 of 5 Survey Survey Options Help vn fje Setup 2 0f 5 Max acceptable Far and Near Ground Reading difference AC System 60Hz v Beep if below 9909 Yy GPS Type NIEA Ea C Diferential GPS Required 9999 Never Beep cps port C Use GPS for Altitude V Lag GS at Flags Auto Log GPS Every Reading gt V Log s at DCP Feature pii DAMeter PLS D tip 11 49 AM Step 11 Make Selection of Maximum Acceptable Difference between Far and Near Ground Readings When you are reconnecting the trailing wire from one test station to another test station further down the pipeline the last voltage recorded prior to breaking the connection with the first test station should be recorded as a Device voltage After tapping on the Device button on the survey screen and selecting Reconnect follow the predetermined voltage recording procedures for a Reconnect The specific procedures for a given Device such as a Reconnect will have been scripted via the software The voltage recorded prior to disconnecting the trailing wire will be considered the FAR Ground reading since you will be FAR perhaps a mile from the first test station Once the reconnect has been made at the second test station you will be prompted to make a new voltage recording This new voltage re
59. button functionality becomes accept regardless of whether save or none is selected here Step 9a Select Walking Direction On the Setup 1 of 5 screen you should indicate whether station numbers will be increasing or decreasing as you proceed in the survey direction by tapping on either the Increasing or Decreasing radio button in the Survey Walking Direction field Step 9b Select the length units for your Soil Resistivity measurements As indicated in the Surface Potential Survey Training Manual you have the option to manually enter a value for soil resistivity measured at the location of a marked SP anomaly which will allow the software to calculate a Corrosion Factor The units Q cm or Q m for soil resistivity that will appear on the SP anomaly marking screen for your manual data entry 81 will depend on your selection here in the Soil Resistivity Distance Units field cm or m Step 9c Make selection of Metric units if required By checking off the box labeled Metric the reading interval distance between voltage recordings and the flag internal flag spacing will be displayed on the Setup 3 of 5 screen in meters as opposed to feet Step 10 Select GPS Receiver Type and GPS Options Tap once on the Next button The Setup 2 of 5 screen will appear as shown below Survey Survey Options Help vn A Setup 2 Of 5 AC Sys
60. ch located on top of a reference electrode cane data probe while making electrical contact with the soil above the pipe with the copper copper sulphate half cell end of the cane Consequently in this survey mode the operator is in control of the timing of when voltage recordings are made as a CIS is conducted Note The Trigger CIS mode should also be selected when using the trigger cable part SIN024 for automatic triggering of readings in conjunction with the wire chainer counter unit In contrast with the Continuous CIS mode the timing of when voltage recordings will be made is preset For instance if you select 1 second intervals voltage recordings will be made every second Consequently the operator must synchronize his cane repositioning pace to match the preset voltage recording timing Step 7 Select the function operating mode of the cane buttons associated with the two reference electrodes canes to be used in the CIS Selections are made by tapping choices in the D C P and Survey fields shown in the Step 5 screen above The function of the cane buttons during regular survey measurements is determined by the selection made in the survey field while the selection made in the D C P field determines the function of the cane buttons when measurements are made at specially identified locations devices Cane Button Functions During Regular Survey Between Devices The functionality
61. connection between your DA Meter and your PC You must have the Microsoft ActiveSync software program installed on your PC Connect a cable between the 9 pin Serial Data Communication Port located on the top side of the DA Meter COM 1 Port and your PC and switch on your DA Meter The ActiveSync window should appear and indicate that a connection has been established Step 2 Open your ProActive Program on your PC and click on the Load Route button on the main menu bar File Edt View Took Advanced Window Help Gi vi Bees Find Fiter List Mgr_ Templates Equations Rote Mg eae Reports This will pull up the Data Logger Load Route window as shown below 102 Data Logger Load Route Data Logger fiN fsirs Route Franks SU101 Technician Frank o l Survey Type annual Status READY V Include Atmospherics I Current Interruption x Exit Step 3 Make selections on Data Logger Load Route Window From the list of Routes available to you which can be viewed by clicking on the pull down list arrow button in the Routes field select the route you will be downloading In our case the example route is named Franks SU101 Also select DAMETER for DA Meter after clicking on the pull down list arrow button in the Data Logger field Next you can select the name of the technician who will be performing the route by clicking on the pull do
62. cording will be considered the Near Ground reading since you are standing very NEAR to the second test station 28 By tapping once inside the field marked Max acceptable Far and Near Ground Reading Difference the number indicated in the above case the number shown is 5 can be changed to any value desired by pressing the delete DEL key on the keyboard and typing in a new number If for example the number 5 is entered in this field it means that the maximum allowable difference between FAR and NEAR voltage recordings has been set at 5 otherwise an error window will be displayed on the screen If the FAR and NEAR voltage recordings are within 5 in this case of each other there will be no error message If on the other hand the recordings differ by more than 5 an error window will appear on the screen The error window will indicate 2 options Option 1 Retake Near Reading Option 2 Accept This Error By selecting Option 1 you have the chance to make another recording at the second test station which would be compared to the stored FAR Ground recording If this voltage difference is lt 5 there will be no error message By selecting Option 2 you will be choosing to ignore the difference in the recordings and move on with the survey Step 11 Set Local ElectricityAC Frequency By tapping once on the AC System field pull down arrow button on the Setup 2 of 5 screen shown above you will have the ch
63. cting one of these options you can elect to have the GPS position data logged automatically at every survey reading at every second reading at every fifth reading at every tenth reading or not at all never at survey readings Step 15 Tap once on the Next button The specific screen that will appear Setup 3 of 5 screen will depend on if you selected Trigger CIS mode or Continuous CIS mode back at Step 6 and whether or not you selected Metric units If Trigger CIS mode was selected for example the screens shown below will appear for the non metric and the metric cases 32 Survey Survey options tee N Setup 3 of 5 Name of PIL Flag Dist Error Limit 20 of Dist Per Reading 2 5 ft Vava cone Distance Between Flags o f Number of Data Probes Starting Location Auto Pacing Mode 77 fo 0 0 Station Number set once during initial setup Astat peDameterPis D Te 9 40 AM Survey Survey Options Help IA Setup 3 of 5 fi Flag Dist Error Limit o Name of P L a m vale segn ent Distance Between Flags m Stating Location Number of Data Probes One Two Gite Pacing Mede v 00 Station Number tset once during initial satup pig DaMeter PLS B oF 9 47 AM Step 16 Select Voltage Reading Interval Distance Between Recordings By tapping once in the field in the Setup 3 of 5 screen labeled Distance Per Reading you can type in t
64. ctions had been entered for this prompt regarding how to make cable connections hook ups to perform the scripted measurements the Hookup Help button would have been active and tapping on the Hookup Help button would have revealed those instructions By tapping on the Skip button you can skip to the next prompt without logging data if for some reason you are not able to respond to the prompt You also have the opportunity to change the voltmeter settings from those established on the ProActive side scripted in ProActive for this particular prompt or for all prompts of this type on this route To do so tap on Settings which will pull up the screen shown below Meter Settings Range 5 7 VOC 400 MOhm Style On Off Calculation AAD A A ____ _ On Time ms 1 0000 0 0009 3 e OF Time ms sco ill alts millAmps etc The scripted settings for the voltmeter for this type of prompt pipe to soil on this route will be displayed on the above screen By tapping on the pull down list arrows you can select new settings You can also indicate whether or not your changes pertain to just this prompt or to all prompts of this type by tapping in the appropriate circle You can also make changes if desired to the scripted calculation associated with the prompt which would have been established on the ProActive side You could for example change the type of ref
65. d as can be seen by tapping on the pull down list arrow button there are two choices available for the DA Meter s voltmeter Read Mode The choices are On Off Pairs DSP mode and On Off Pairs GPS Sync On Off Pairs DSP mode In this mode the voltmeter uses digital signal processing techniques to determine the flat portions for both the On and Off parts of the cycle of the rectifier current cycle AV values see DCVG Training Manual are then determined for the On and the Off portions of the cycle from which the DCVG voltage is calculated AV On minus AV Off For these measurements to be successful the data probes reference electrode canes must remain in good electrical contact with the soil for at least one rectifier current waveform period following the initial contact of the probes with the soil for a stable DCVG voltage value to be displayed On Off Pairs GPS Sync This voltmeter mode could be selected if you were using an MCM GPS receiver on your DA Meter and current interrupter switches equipped with GPS units were being employed on the rectifiers In this case AV On and AV Off values are based on potentials measured at pre determined sampling times on each waveform cycle which are synchronized with the current interruption switching timing With this reading mode selection you would tap on the GPS Settings button which would bring up the screen shown below Setup 5 of 5 Voll GP
66. display the Windows Powered Handheld PC 2000 desktop screen as shown below assuming that the operating system running your DA Meter is Windows Handheld PC 2000 My Handheld PC E E DaMeterss DAMotoPLE E Recycle Bin Handheld PC 2000 oor i Step 2 Double tap using the special pen stylus provided with the DA Meter on the DA Meter PLS icon This will open the software program that will run the DA Meter for Pipeline Surveys The window shown below will appear Note It may take a few seconds for this window to appear Survey Survey Options _ Help vn ve Ml Lecatio v Dist Fom Start Dist From v Station Range None Selected feo Feat Device GPS Datal Log GPS bade Flaq Flag Pte DAMeter_PLS Du 2 1 45 PM This is the Main Survey Window At this point a survey has not been set up the setup process is what we are going through here and so no information is currently displayed in this window Step 3 Tap once on the Survey button situated in the Menu Bar in the top left hand corner of the window The window shown below will appear Ala New Survey CtrleN 0 Ny _ _ Continue Previous Survey Ctrl C E T E i Finish Survey tri F Ext Ctrl x ee E E E Dist From Known Station Range None Selected S Geo Feat Device Read GPS Data Log GPS Undo Flag Flag ors DAMeter_PLS fe 11 12 aM
67. e as this identification will be required by the ProActive software to transfer your SP survey data to your PC Step 25 Select Voltmeter Settings Tap once on the Next button on the Setup 4 of 5 screen The Setup 5 of 5 screen will appear as shown below Setup 5 of 5 Voltmeter Setting Range 5 7 VOC 400 MOhm Astat PezDaMeter_PLs Aw to o 11 am Select the Read Mode SP surveys are typically performed on pipelines that are not cathodically protected with impressed current from rectifier sources and so the appropriate choice of Read Mode would be Single Read i e On Off Pair read modes are not appropriate since rectifier current interruption is not a factor Select the Range As can be seen by viewing the drop down menu in the Range field a number of selections are possible The fastest response setting is the 5 7V 400MQ setting 80ms response time however the noise level on this setting is 5mV which could make small anomalies difficult to detect Lower noise level settings 1mV noise level can be selected such as the 40mV or 400mV settings to increase sensitivity however please note that the speed of response on these settings is around sec Step 26 Pull up Active Survey Screen By tapping on the OK button on the Voltmeter Settings screen the active Survey screen would appear and you would be ready to proceed with your SP survey
68. e next measurement location In contrast the DCVG data are determined from the cycle of the waveform occurring just in front of the trigger event Consequently it could take up to two waveform periods two On plus Off times to record both sets of data from the time at which the data probes make good electrical contact with the soil at each measurement location Another major difference between Combined DCVG CIS applications and conventional DCVG and CIS applications is that in the Combined DCVG CIS case only the push button trigger on the left hand cane red handled cane is enabled the push button on the right hand cane green handled cane is disabled This means that the trigger event that will initiate the recording of first the DC VG data and second the CIS data will be pressing of the left hand cane s push button This also means that survey flags will have to be designated by tapping on the Flag button on the Survey screen 70 Prior to performing Combined DCVG CIS applications it is highly recommended that you first use the DA Meter to perform individual DCVG and CIS surveys as described in the preceding sections in order to become familiar with the test apparatus including the DA Meter and the measurement procedures for both survey types You are also referred to our DCVG and CIS Training Manuals which are companion manuals to the DA Meter User s Manual for specific instructions on how to perform these sur
69. e now in a position to connect a suitably configured receiver to the DA Meter if not already connected for the configuration process and to perform surveys involving the tagging of readings with GPS position data 135
70. ection outlines the steps required to setup the DA Meter to participate in DCVG survey applications The setup process establishes the conditions of the particular survey about to be performed and identifies the section of pipeline that is about to be examined by the DCVG survey application The setup process also establishes a file in which the voltage recordings survey data will be stored At the completion of the survey DCVG survey data can then be retrieved by a PC that is in communication with the DA Meter by accessing the file in which the survey data are stored The process of transferring DCVG survey data to a PC following completion of a survey is discussed in our DCVG Training Manual DA Meter Version Step 1 Switch on the DA Meter by pressing the power button see Section II Assuming that the battery pack is charged see Section II the screen will light up and will display the Windows desktop screen as shown below assuming that the operating system running your DA Meter is Windows Handheld PC 2000 My Handheld PC DA A ie Oe DAMeterss DAMateiPLS en Handheld PC 2000 E Recycle Bin oar Step 2 Double tap using the special pen stylus provided with the DA Meter on the DA Meter PLS icon This will open the software program that will run the DA Meter in pipeline survey mode The window shown below will appear Note It may take a few seconds for this window to appear 48 Baroy surver Opti
71. een device readings would be accepted by triggering either cane button which is the accept option In this case you would tap on the Save button on the survey screen to actually save the data Note When Marking DCVG anomalies see DCVG Training Manual 52 the cane push button functionality becomes accept regardless of whether save or none is selected here Step 9a Select Walking Direction On the Setup 1 of 5 screen you should indicate whether station numbers will be increasing or decreasing as you proceed in the survey direction by tapping once on either Increasing or Decreasing in the Survey Walking Direction field Step 9b Make selection of Metric units if required By checking off the box labeled Metric the reading interval distance between voltage recordings and the flag internal flag spacing will be displayed on the Setup 3 of 5 screen in meters as opposed to feet Step 10 Select GPS Receiver Type and GPS Options Tap once on the Next button The Setup 2 of 5 screen will appear as shown below Survey Survey options tee N AC System 60 Hz z GPS Type NMEA _ Differential GPS Required Setup 2 Of 5 GPS Port 7 Use GPS for Altitude Nowe gt V Log GPS at Flags Auto Log GPS Aaver V Log 5 at DCP Feature ee ee as ies a dese ee By ial ig DAMeter_PLS 2 9 120M By tapping on the pull down list arrow button in
72. egister flags would only be pressed at each survey flag location Finally the flag flag choice can be selected and in this case both canes would only be used to register survey flags Pressing the push button on the read designated cane or pressing the cane button on the flag designated cane has the same affect as tapping the read button and saving the reading or the flag button respectively Automatic Triggering of Readings When the trigger cable part SIN024 is used in conjunction with the wire chainer counter unit the trigger cable signal simulates the action of the left hand red handled data probe push button while the right hand green 20 handled data probe push button is disabled has no effect Consequently in this case it is important that the left hand data probe push button be designated as a read button while the right hand push button can be designated as either read or flag again the right hand data probe push button is not a factor The appropriate selections would be read read or read flag In this case survey flags can be designated by tapping the Flag button on the survey screen If Continuous CIS mode is selected the screen will be as shown below Survey Survey Options Help x Survey Type Continuous ds v Rectifier Mode Cycle ON OFF 7 C Use Metric Cane Button s Allowed To D C P Survey None Left Right Survey Walking Direction accent Flag
73. en gt Double Tap on the Control Panel icon gt Double Tap on the Power icon This will display battery status information for the main battery Battery Status Indications If the main battery status is shown as Good your battery should not need charging in the next few hours If the status is shown as Low you should consider charging the battery within the next few hours or so However if the status is shown as Very Low you should switch out or re charge the battery immediately When you switch out the main battery pack you will not lose the Windows registry or the survey application programs while switching out the battery assuming that the back up battery is charged In addition you will not lose your survey data which are stored on a non volatile CompactFlash memory card II 3 How to Reboot Reset the DA Meter Should the DA Meter lock up freeze up or fail to operate the unit can be rebooted or reset in one of two ways Soft RESET To perform a Soft RESET press and hold down simultaneously both the contrast keys see Figure 1 above until the screen goes blank Note The DA Meter will have to be switched on to perform a Soft RESET After the screen goes blank your DA Meter will perform a soft RESET When you use a Soft RESET you do not lose the Windows registry or the DA Meter s survey application software programs or your survey data Your survey data are actually stored on a non volatile Com
74. erence electrode you were using in which case you would enter an appropriate value for the addend in the Calculation field 114 Or if you were logging rectifier current values at a rectifier site using a shunt you might want to change the shunt type and or the calculation volts measured to amps from those scripted in ProActive Predominant Voltage If you are concerned about variable interference type effects occurring during a voltage reading you can elect to record a predominant voltage the value of which is determined over a period of time perhaps several minutes as opposed to recording a snap shot reading If so check off the box labeled Save Predominant Reading In this reading mode the data logger will sample the voltage on a time interval basis and save the voltage reading that occurred the most frequently over the sampling period This is the predominant voltage When the Read button is tapped the clock starts ticking on the sampling of the voltages and the voltages will continue to be sampled until the Reading button is tapped At that point the predominant reading will be logged If Predominant Reading is not selected regular readings are logged by tapping on the Read button on the prompt screen and the next prompt screen in the scripted sequence will appear For our Valve Site example the next 6 prompt screens require observation data to be entered selected
75. erentially corrected real time corrected GPS data to be logged by the DA Meter If this box is ticked only GPS data that has been derived using a correction message signal in real time will be logged by the DA Meter If this box is left 54 unticked it means that you will allow the DA Meter to log either standard GPS data or differentially corrected GPS data depending upon what is being output by your receiver at any given time Please note that if this box is checked ticked GPS data will not be logged unless a real time correction signal has been received by the correction message receiver component of your GPS unit In most instances logging standard ie uncorrected GPS data would be preferable to not logging any GPS data Use GPS Altitude If this box is ticked altitude data will be included with the position data whenever GPS data is logged Note Altitude data on some GPS units is not particularly accurate in survey applications Log GPS at Flags If this box is ticked GPS position data will be logged automatically at flags when either the flag button is tapped directly on the Survey screen or when the push button on the designated flag cane is pressed Log GPS at DCP Feature If this box is ticked GPS position data will be logged automatically at Devices or Geo Features when either the Device button is tapped on the Survey screen and a Device reading is logged or when the Geo Feat
76. ers with integrated GPS units If this is the case and you select this option a GPS Settings button will appear on the Voltmeter screen By tapping once on the GPS Settings button the window shown below will appear 94 GPS Sync OnfOff Settings Off Delay fiso ms GPS Type races Downbeat Each Mirute w Cyde Stat Or gt Off Cancel i Voltmeter Activg Astat p DAMeter_PLS pig a PE 11 46 PM ral You are being asked here to make several selections First select the type of GPS unit you will be using currently only the MCM receiver unit can be used in the GPS Sync voltage reading mode By tapping on the pull down list arrow in the GPS Type box you can make this selection Next enter your On Delay and your Off Delay selections by tapping in the appropriate field and typing in the requested delay time in milliseconds These delay times are employed so that any spiking in the voltage waveform that might occur as the rectifier current is switched from ON to OFF and from OFF to ON does not become a factor in the voltmeter s determination of the true ON and OFF voltage values For example if 150 ms was selected for the Off Delay the data logger would record the voltage value sampled 150 ms after the rectifier current was switched from the ON to the OFF state Also if 150 ms was selected for the On Delay the data logger would record the v
77. es not control when the receiver is in GPS tracking mode but rather the receiver will begin tracking as soon as battery power is applied and will continue to track until the battery power is switched off This would represent the maximum battery power consumption mode for the receiver 130 With regard to the Power receiver which only has one physical terminal but you can connect to either Port A or Port B internally depending on which cable you select you would configure Port B for NMEA data output by selecting cable number 40492 assuming that you wanted to have the DA Meter signal the receiver to perform GPS tracking only when GPS data are required by a survey application Alternatively you would configure Port A using cable number 30945 if you wanted to have the receiver to always be tracking the GPS signals when battery power is applied even when GPS data are not required by the DA Meter Finally for the Pocket receiver you must configure Port B for NMEA data output and you must connect to the DA Meter using the standard Pocket receiver cable supplied by Trimble The Pocket receiver can only track the GPS signals when prompted to do so by the DA Meter In other words the Pocket receiver needs a control signal from an external unit in our case the DA Meter to be turned on Example The following is an example of the how you would configure Port A on the receiver unit for NMEA output If you select to configure Port A by clic
78. ey Cell to Cell Potential Survey Applications 65 76 III 8 How to Make Changes to your Pipeline Survey Set Up MCICCHONS oeir E cxlveneac a NE a SE AEE reba Reena eens 91 III 9 How to Use the DA Meter as a Stand Alone Voltmeter Waveform Analyzer Pipeline Survey Program 92 continued SECTION IV USING THE DA METER TO PERFORM SCRIPTED SITE SURVEYS IV l Introd ction sione ni alaadedaa ten naa cpa E EA EE E a eke 101 IV 2 How to Load the DA Meter with a Scripted Route from PROACUVE 4 a a aee aaee A NR EE ATOE E A 102 IV 3 How to Use the DA Meter to Collect Data on a Scripted ROUTE aser i aerial a E E a Cokie 105 IV 4 How to Upload Data from a Completed Route from the DA Meter to ProActive sssssseseseererereerresesresesessse 118 IV 5 How to Use the DA Meter as a Stand Alone Voltmeter Waveform Analyzer Site Survey Program 665 119 Appendix 1 How to Configure Trimble GPS Pathfinder XR XRS Power and Pocket Receivers for Use with the DA Meter EE PEO UNC DIO eae a Seed ates E E E emanate gion 124 b How to Install the GPS Pathfinder Controller Software Program ONO YOU PC museer Ker overated NEA EN AO 127 c How to Install the GPS Pathfinder Controller Software Program onto your DA Meter sssnsssssnesesrrssseesssrereseresseereesso 127 d How to Configure GPS Pathfinder Receivers to Out
79. g Distance Between Flags t 45 Stating Location Number of Data Probes one Two fai wv 1240 0 Station Number w tset once during initial satup Pe OaMeter_ PLS Exes 9 59 AM Step 24 Tap once on the Next button on Setup 3 of 5 screen The screen shown below will appear Setup 4 of 5 screen Survey Survey Options Help vn ee Set up 4 of 5S Work Order Technician Name Comments t Descriotion File Name Compact Flash DAMeter_DATA ns ns mcm date time system data 5 6 05 100038 AM set once during initial set once during initial setup at the Control Panel Astat preDaMeter_PLe D ton 10 01 AM 36 Step 25 Provide the Work Order Number for the CIS By tapping once in the field labeled Work Order you can type in the work order number for the CIS if appropriate Step 26 Provide Your Name By tapping once in the field labeled Technician Name you can type in your name Step 27 Provide Comments By tapping once in the field labeled Comments Description you can enter any comments you might have regarding the survey perhaps weather conditions soil conditions etc Also shown on the Setup 4 of 5 screen are the File Name and the date time Note Do not attempt to change the File Name indicated here as this identification will be required by the ProActive software to transfer your CIS data to your PC or server Step 28 Make Vol
80. g Location Auto Pacing mode 71 040 0 Station Number set once during initial satup PmoaMeter pis D F u 9 14 AM Survey survey Options nern AJEN Setup 3 of 5 Flag Dist Error Limit 20 Name of Pil Nal f 0__ m Valve Segment Distance Between Flags 30 0 m Stating Location Auto Pacing mode 71 040 0 Station Number set once during initial satup PmoaMeter pis DF u 9 15 AM Step 14 Select Voltage Recording Interval Distance Between Recordings By tapping once in the field in the Setup 3 of 5 screen labeled Distance Per Reading you can type in the voltage reading interval distance in feet or meters expected between recordings for the DCVG survey Step 15 Select Survey Flag Interval Distance Between Survey Flags 85 By tapping once in the field in the Setup 3 of 5 screen labeled Distance Between Flags you can type in the survey flag interval distance between survey flags for the section of pipeline being measured Typically survey flags are located at 100 feet or 30 meter intervals Step 16 Select the maximum permissible error between the actual number of recordings made between 2 survey flags and the expected number of recordings By tapping in the field labeled Flag Distance Error Limit you can type in the maximum permissible error For example the maximum permissible error is indicated as 20 on the above screen If the reco
81. g Location field which will reveal the options available regarding how you would like location information to be displayed The Setup 3 of 5 screen will be as shown below for the non metric case Survey Survey Options Help i Fal Setup 3 of 5 Flag Dist Error Limit 20 Name of Pil coe Niall es ft vale Segment Distance Between Flags 200 ft Stating Location Number of Data Probes Oone Two Auto Pacing mode 7 0 0 Station Number w Station Nummer tsat once duringh j a W Ss Pm oaMeter PLS Ox 9 49 AM You can select to have location information displayed on the survey screen as station number feet or milepost station number meters or kilometers for the metric case Whichever selection you make here will determine how you enter your starting location information 35 For example if your pipeline locations are represented by station numbers you would select Station Number from the drop down list and you would enter a starting location for the survey in the form of a station number If you do not know the station number where you re beginning your survey enter 0 0 0 As an example if you are working on pipeline ABC within valve segment 45 and you are about to begin a CIS at station number 12 0 0 your Setup 3 of 5 screen would be as shown below Survey Survey Options Help vn A Setup 3 of 5 Name of PIL ABT vale Segment Flag Dist Error Limit Dist Per Reacin
82. he allowed variance for a particular voltage is plus or minus 10 and your present reading is 15 larger or smaller than the previous reading the site will be marked as non compliant and this will raise a red flag when the route data are uploaded back to ProActive If GPS data were logged previously for each site on the route and you have an active GPS receiver associated with your DA Meter see Step 2 above 110 the Show All and Show Nearest buttons will be active on the Survey Info screen If you select Show All the sites will be listed from top to bottom in the order that was established on the ProActive side for the route If you select Show Nearest the DA Meter software will re order the site list and the list will be ordered from top to bottom based on the distance of each site from your present location the closest site being at the top of the list This site list is updated every 5 seconds The GPS status indicator a flashing on and off icon provides the following status indications Flashing S icon Means that the DA Meter is receiving standard uncorrected GPS position data from the GPS receiver Flashing D icon Means that the DA Meter is receiving differentially corrected GPS position data from the GPS receiver Flashing icon Means that the DA Meter is not receiving GPS position data Finally you would place a tick in the box labeled Enable Interruption
83. he voltage reading interval distance in feet or meters expected between recordings for the CIS Typically in CIS work this expected interval distance is 2 5 feet or 1 meter Step 17 Select Survey Flag Interval Distance Between Survey Flags By tapping once in the field in the Setup 3 of 5 screen labeled Distance Between Flags you can type in the survey flag interval distance between survey flags for the section of pipeline being measured Typically survey flags are located at 100 feet intervals or around 30 meter intervals 33 Step 18 Select the maximum permissible error between the actual number of recordings made between 2 survey flags and the expected number of recordings By tapping in the field labeled Flag Dist Error Limit you can type in the maximum permissible error For example the maximum permissible error is indicated as 20 on the above screens If the recording interval is expected to be 2 5 feet and the survey flag separation is 100 feet it means that 40 recordings are expected If however only 30 recordings are actually made between survey flags an error window will appear on the screen since there is a 25 difference between the expected and actual number of recordings made No error window will appear if the difference is less than 20 for this example ie you could have a minimum of 32 recordings and a maximum of 48 recordings between survey flags to stay within the 20 max error al
84. her settings on this window be left at their default values which are the values shown in the above window These additional settings pertain to maintaining a minimum quality of GPS data based on the receiver only processing data from satellites that are well positioned relative to one another and that are producing good signal strength Please refer to the Trimble Pathfinder manual for more details on these parameters Step 9 If you require real time corrected GPS data and you plan to employ a particular system Satellite subscriber service Beacon or WAAS you would make any necessary selections in this regard by clicking or tapping on Settings and this time clicking or tapping on Real time Settings In the case of both the Satellite and Beacon systems you would be required to make additional selections to suit your needs Please refer to the Trimble Pathfinder manual for additional details Step 10 Connect the GPS Pathfinder Controller software to the receiver unit by clicking or tapping on GPS and selecting Connect By doing so your settings will be sent to your GPS receiver unit to configure its operation Step 11 Disconnect the GPS Pathfinder Controller software from the receiver unit by clicking or tapping on GPS and selecting Disconnect 134 Your GPS Pathfinder receiver will save your settings in its memory until you decide to re configure the unit You ar
85. hoices Each Minute Each Hour and Midnight If Each Minute is an option for your current interrupter we suggest making this selection Also if your interruption cycle starts with the current in the ON state the first transition is from ON to OFF place a tick in the Start Cycle box remove the tick if the opposite is true The Each Minute designation indicates to the data logger that a new interruption cycle will begin at the top of each minute Consequently the data logger can reference its timing to the top of each minute In this instance your On plus Off times your waveform period should be an even multiple of 60 Again for these measurements to be successful the data probes reference electrode canes must remain in good electrical contact with the soil for at least one rectifier current waveform period following the initial contact of the probes with the soil for a stable DCVG voltage value to be displayed After making your GPS Settings selections tap on the OK button which will return you to the Voltmeter Settings screen 63 Select the Cycle On Off Times The specific On and Off times for the particular current interruption waveform cycle that will be employed during your DCVG survey should be entered in the Cycle ms fields The On and the Off times should be entered in milli seconds Note After a time period corresponding to at least one waveform period On time plus Off time the
86. ich could be the case for example if a potential profile is desired of a depolarized pipeline ie a pipeline whose polarization potential has had a chance to fully dissipate Under such conditions however the pipeline would not be cathodically protected Rectifier Mode Selection By tapping once on the pull down list arrow button in the Rectifier Mode field on the Setup 1 of 5 screen the screen shown below will appear Survey Survey Options Help lta Setup 1 0f 5 Survey Type Trigger as ina Rectifer mode Sean Jj Use Metric Cane Button s Allowed To lahways ON D C P Survey ways OFF None i rSurvyey Walking Direction Accent Flag Read l Increasing Decreasng Accent gt Save cat once during iritial setup Pm OaMeter PLS E AET As can be seen on the above screen there are 3 choices for Rectifier Mode Cycle ON OFF Always ON and Always OFF IfAlways ON is selected it will be assumed that the rectifiers affecting the line will be permanently ON which would be the case for example for a non interrupted CIS If Always OFF is selected it will be assumed that all rectifiers having an affect on the line will be permanently OFF at least for the duration of the CIS 27 If Cycle ON OFF is selected it will be assumed that all rectifiers having an affect on the line have current interrupters installed and that their switching waveforms will be synchronized This would
87. ine owner we know the state in which the pipeline is located we know the pipeline number we know the section of the pipeline that was surveyed and we know that it was a SP survey Step 5 Tap once on the OK button The window shown below will appear depending on previous settings This is the first of 5 so called setup windows Survey Survey Options Help Setup 10f5 Survey Type Trager as v i Rectifier Made Cycle ON OFF F C Use Metric Cane Button s Allowed To Survey Right Survey Walking Direction Increasing Decteasng Step 6 Select Survey Type Tap once on the pull down list arrow button in the Survey Type field to reveal the 5 choices shown in the screen below 79 Survey Survey Options Heie EEE Rectifier Made Cycle ON OFF Use Metric Survey Walking Direction Ircreasing Decreasing Accent gt Save set once during iritial setup start pg DAMeter_PLS Bro 9 08 AM By tapping once on Surface Potential the screen shown below will appear Survey Survey Options Help 0 se Survey Type Surface Potential _ Cane Button s Allowed To Survey Right survey Walking Direction Ircreasing Decreasing cat once during iritial setup PmoaMeter PLS BWP 207 am Fal Step 7 Select Rectifier Mode A menu option is not available for Rectifier Mode in the case of Surface Potential surveys as such surveys are conducted on no
88. ing on your CD drive The various files and folders contained on the CD will be displayed as illustrated in the window shown below Trimble GPS Text Document DAMeter Release Notes txt 13 KB w 4 DAMeter PCMCIA Yoltmeter User DAMeter Installer EXE Manual doc Microsoft Word Document DAMeter Software Setup w g DAMeter_PLS User Manual doc Procedure doc Microsoft Word Document Microsoft Word Document amp 905 KB DAaMeter_SS User Manual doc dampkg int A Microsoft Word Document INT File 498 KB 1 KB DCYG Survey Procedure doc Installing Microsoft 2 Microsoft Word Document ActiveSync txt 33 KB Text Document MSASYNC EXE Win32 Cabinet Self Extractor Microsoft Corporation The survey applications programs are contained in the folder labeled DA Meter Installer EXE In addition to the survey programs this folder also contains a program to run the voltmeter in the DA Meter and also a program to run the driver in the ProActive program The driver is the component of the ProActive program that allows you to copy your survey files from the DA Meter to ProActive Consequently you should always perform a software re installation process via the PC or laptop that you are currently using to run your ProActive program This is particularly important if you are installing updated DA Meter software as there may be an update to the ProActive driver program as part of the software update package
89. ion and in addition all current interrupter waveforms ON OFF cycles need to be synchronized with each other In other words all rectifiers need to be ON at the same time and for the same length of time and all rectifiers need to OFF at the same time and for the same length of time One way to accomplish such synchronization is to have GPS receivers integrated with current interrupter switches and to employ a GPS satellite s timing system to control the current switching timing on all participating rectifiers simultaneously 25 Such GPS Receiver Current Interrupter Switches are available through MCM This type of current interrupted method is known as a GPS Satellite Synchronized High Low CIS mode Figure 2 shows an illustration of a CIS being performed using GPS satellite synchronization of rectifier current interrupter switches Again the ON OFF current switching cycle would be synchronized for all rectifiers having an affect on the pipeline section being surveyed 4 GPS Satellite s synchronization Rectifier m Test station Figure 2 A GPS satellite synchronized high low CIS mode illustration 26 Of course a CIS can be performed with rectifiers permanently ON current permanently flowing in the soil during measurements and this method is known as a Non Interrupted CIS mode since in this case the rectifier current is non interrupted Finally a CIS can be performed with rectifiers permanently OFF wh
90. itched from ON to OFF and from OFF to ON does not become a factor in the voltmeter s determination of the true ON and OFF voltage values for each CIS measurement For example if 150 ms was selected for the Off Delay the data logger would record the voltage value sampled 150 ms after the rectifier current was switched from the ON to the OFF state Also if 150 ms was selected for the On Delay the data logger would record the voltage value sampled 150 ms after the rectifier current was switched from the OFF to the ON state Finally select your current interrupter s Downbeat frequency As indicated by tapping on the pull down list arrow button in the Downbeat field there are 3 selection choices Each Minute Each Hour and Midnight If Each Minute is an option for your current interrupter we suggest making this selection Also if your interruption cycle starts with the current in the ON state the first transition is from ON to OFF place a tick in the Start Cycle box remove the tick if the opposite is true Single Read GPS Timing This voltmeter mode is similar to the Single Read mode except that in this case the data logger uses the GPS clock signal to associate voltage recordings with the actual time they were made With this voltmeter reading mode selected the screen shown below will appear Survey Survey Options Help vrs pe x Setup 5 of 5 Voltmeter Setting Read Mode
91. ke the recordings to be uniformly spaced between survey flags in cases where the actual number of recordings made between flags deviates from the projected number flag separation recording interval By tapping in the box labeled Auto Pacing Mode and inserting a tick in the box you will enable the DA Meter to automatically adjust the actual recordings and space them evenly over a 100 feet span distance between survey flags regardless of the actual number of recordings made This selection is highly recommended Step 19 Provide the Name of the Pipeline 58 By tapping once in the field labeled Name of P L you can type in the pipeline name Note This is not the same as the filename for the DCVG survey that was selected back in Step 4 This is the actual name of the pipeline Step 20 Provide the Valve Segment Identification Number or Name By tapping once in the box labeled Valve Segment you can type in the valve segment number or name if known Step 21 Provide the Starting Location Information Tap the pull down list arrow button in the Starting Location field which will reveal the options available regarding how you would like location information to be displayed The Setup 3 of 5 screen will be as shown below for the non metric case Setup 3 of 5 oe Flag Dist Error Limit Name of P L Dist Per Reading Valve Segment Distance Between Flags Startng Location Auto
92. king or tapping on Port A Settings the window shown below will appear Port A Settings Protocols Input Baud Output Baud NMEA amp RTCM Data Bits saepe Stop Bits Parity Cancel 131 Step 5 Click or tap on the pull down list arrow in the box labeled Protocols on the above window and select NMEA The window shown below will appear Port A Settings Protocols Input Baud Output Baud Data Bits Stop Bits Parity None Corcel Select the output baud rate for the receiver and the other communications settings required to match the DA Meter s requirements The settings on the Port A Settings window shown above should be as follows Output Baud Rate 4800 Data Bits 8 Stop Bits 1 Parity None Step 6 Click or tap on the OK button on the above Port A Settings window which will save these communications settings Step 7 Click or tap on Settings again and then click or tap on NMEA Settings this time By doing so the window shown below will appear 132 NMEA Settings Output Interval sec 11 X NMEA Strings M GGAT vTGT GU f GSA rT G s RMCT ZDA OK Cancel OK The NMEA data string format labeled as GGA should be selected box checked All other boxes should be left unchecked The GGA data string contains position data latitude longitude and altitude as well as the time UTC that e
93. lowance Step 19 Select whether or not you would like the recordings to be uniformly spaced between survey flags in cases where the actual number of recordings made between flags deviates from the projected number flag separation recording interval By tapping in the box labeled Auto Pacing Mode and inserting a tick in the box you will enable the DA Meter to automatically adjust the actual recordings and space them evenly over a 100 feet span distance between survey flags regardless of the actual number of recordings made This selection is highly recommended Step 20 Select the number of reference electrodes canes that will be used in the CIS The number of reference electrodes also known as data probes that will be used in the CIS can be selected by tapping on either the one or two circle in the box labeled Number of Data Probes Step 21 Provide the Name of the Pipeline 34 By tapping once in the field labeled Name of P L you can type in the pipeline name Note This is not the same as the filename for the CIS that was selected back in Step 4 This is the actual name of the pipeline Step 22 Provide the Valve Segment Identification Number or Name By tapping once in the field labeled Valve Segment you can type in the valve segment number or name if known Step 23 Provide the Starting Location for the Survey Tap the pull down list arrow button in the Startin
94. ments since the pipeline would lose its cathodic protection while the CIS measurements were being performed The solution to this problem is to only interrupt the current flow for very short periods of time typically less than a second and to be able to record the pipe to soil voltages with respect to the reference electrode during the current OFF periods If pipe to soil voltages are also recorded during the current ON periods the magnitude of the IR drop can be determined which would just be the difference between the current ON and current OFF voltages In terms of CIS measurements a convenient way to sample or capture current ON and current OFF pipe to soil voltages is to employ a Current Interrupter which is a current switching device that is connected to a Rectifier The Current Interrupter can be programmed to switch the rectifier current ON and OFF in a predetermined cyclic fashion In this case when a cane is in contact with the soil and the push button on the cane is pressed in the process of a CIS the DA Meter will record the High and Low voltages taken over at least one current ON OFF cycle Such a Current Interrupted method is known as a High Low CIS mode It should be noted that all rectifiers that might have an affect on a pipeline under survey ie might generate current in the line need to simultaneously be switched ON and OFF in an identical cyclic fash
95. mpact Flash DAMeter_DATA nsa ns3 mem care fine aA 5 5 05 9 25 27 AM set once during initial set once during initial setup at the Control Panel Astat preDaMeter_PLe BP to 9 29 AM 60 Step 23 Provide the Work Order Number for the DCVG survey By tapping once in the field labeled Work Order you can type in the work order number for the DCVG survey if known Step 24 Provide Your Name By tapping once in the field labeled Technician Name you can type in your name Step 25 Provide Comments By tapping once in the field labeled Comments Description you can enter any comments you might have regarding the survey perhaps weather conditions soil conditions etc Also shown on the Setup 4 of 5 screen are the File Name and the date time Note Do not attempt to change the File Name indicated here as this identification will be required by the ProActive software to transfer your DCVG survey data to your PC Step 26 Select Voltmeter Settings Tap once on the Next button on the Setup 4 of 5 screen The Setup 5 of 5 screen will appear as shown below Setup 5 of 5 Voltmeter Setting Read Made onoff Pairs DSP mc z Range 5 7 VOC 400 MOhm Cyde ms On Fop Off Boo Astat Peoameter_Pis DF Xe 9 23 AM 61 Select the Read Mode DCVG surveys are performed with the CP system s rectifier current switched ON and OFF in a cyclic fashion an
96. n cathodically protected pipe Step 8 Make Cane Button Functionality Choices Typically for Surface Potential surveys you would trigger voltage recordings using either the positive green handled reference electrode data 80 probe or the negative red handled reference electrode data probe In the case where an in line survey is to be performed by two crew members one holding the positive electrode green handled data probe the other holding the negative electrode red handled data probe the choice of which push button switch to designate as the trigger for readings will depend on which data probe the crew member operating the DA Meter is holding If the DA Meter operator holds the red handled negative data probe the selection should be read flag in the Survey category and if the DA Meter operator is holding the green handled positive data probe the selection should be flag read In either case the crew member who is not the DA Meter operator could use his push button switch to designate the location of survey flags You can also use either cane button when recording voltages at D C P s data collection points devices to accept or accept and save a device reading as opposed to tapping on the accept or the save buttons on the screen Note When Marking SP anomalies see the Surface Potential Training Manual DA Meter Version the cane push
97. n the Waveform button Waveforms can then be view by tapping on the Read button and they can be saved by tapping on the Save button and selecting a file name for the waveform data See Section IV 5 for more details The Exit button will exit you from the Site Survey Program Step 2 Make Global Settings Selections Tapping on the Settings button on the Site Survey screen will pull up the screen shown below Global Settings AC Cycle Rate Voltmeter Digits Os as Tye none y com o Use GPS Altitude Moving Avg Cnt 4 Use Metric V Show Station Nurrbers ms ain _ Apply changes to all surveys Ow Mile FOSS Site Surveys et Dicom You have the opportunity here to make settings changes for the current route survey that you ll be working on or you can apply the changes you make 107 to all subsequent surveys that you ll be performing by checking the box labeled Apply changes to all surveys if it s appropriate to do so The AC Cycle Rate can be set at 60Hz or at 50Hz depending on the electricity supply frequency in your country of operation For operation in the U S this setting should be 60Hz You can change the On Time and the Off Time values to reflect your CP system s rectifier current interrupter On and Off times And you can change if desired the selection of Moving Average Count which is the number of sampled voltage
98. n this Combined DCVG CIS application However the red banana plug terminal Terminal 3 is used to connect temporarily a test cable between the DA Meter and a test station TS in order to record pipe to soil voltages and voltage waveforms prior to beginning a Combined DCVG CIS survey see DCVG Training Manual DA Meter Version GPS receiver units are connected to the 9 pin terminal labeled in Figure 8 as Terminal 5 This is the DA Meter s COM 1 Port Please note that ActiveSync and any GPS receiver unit will share this COM 1 Port which means that a GPS application program should be closed receiver disconnected prior to uploading of survey files to your PC III 7 How to Set Up the DA Meter for Surface Potential Survey Cell to Cell Potential Survey Applications The following section outlines the steps required to setup the DA Meter to participate in Surface Potential survey applications The setup process establishes the conditions of the particular survey about to be performed and identifies the section of pipeline that is about to be examined by the Surface Potential survey application The setup process also establishes a file in which the voltage recordings survey data will be stored At the completion of the survey survey data can then be retrieved by a PC that is in communication with the DA Meter by accessing the file in which the survey data are stored The process of transferring survey data to a PC following comple
99. ng your selections click on the Go button on the above window which will pull up a Data Logger Driver window 104 E DA Moter Driver Load Route Send Roule to DAMets Surveys If you have akeady moved your survey dala to the desktop computer check Use Local Folder and select the folder where il i located M Use Local Folder l Refresh Connecton Version 1 9 9 1 Mrmum DAMeter Version 1 0 1 At this point the scripted route information you selected will have been transferred to the Driver within ProActive and by clicking on the Go button on the Driver window above the route information will be sent to your DA Meter data logger IV 3 How to Use the DA Meter to Collect Data on a Scripted Route At this point the scripted route that you selected is now stored in your DA Meter s memory and the following steps should be followed in order to first of all access the file the scripted route on your data logger and secondly to perform your site survey by collecting the data dictated by your scripted route Step 1 Open the Site Survey Program on your DA Meter 105 My Handheld PC ka fe h Meier DAmetarss D MeterPle E Recycle Bin Astat Red 9 12 FM tal Handheld PC 2000 Double tap on the DA Meter SS icon on your desktop screen which will pull up the Site Survey screen shown below for our example site Surveys ok Surveys ext Astat
100. nstallation program to work If you have a currently licensed voltmeter ie your DA Meter subscription is current the dampkg int key file will allow the updated software to run on your DA Meter Next double click on the folder labeled DA Meter Installer EXE You can now proceed with the installation process in an identical fashion to that described above with regard to installing the software package from the CD SECTION III USING THE DA METER TO PERFORM PIPELINE SURVEYS III 1 How to Set Up the DA Meter for CIS Applications The following section outlines the steps required to setup the DA Meter to participate in CIS measurement applications The setup process establishes the conditions of the particular survey about to be performed and identifies the section of pipeline that is about to be examined by the CIS application The setup process also establishes a file in which the voltage recordings survey data will be stored At the completion of the survey CIS data can then be retrieved by a PC that is in communication with the DA Meter by accessing the file in which the survey data are stored The process of transferring CIS data to a PC following completion of a survey is discussed in our CIS Training Manual DA Meter Version Step 1 Switch on the DA Meter by pressing the power button identified in Section II 1 Figure 1 Assuming that the battery pack is charged see Section II 2 the screen will light up and will
101. oice of 60Hz or 50Hz AC Select 60Hz for all U S applications Step 12 Select Beeping or Alarm Voltage By tapping once in the Beep if below field on the Setup 2 of 5 screen a voltage value can be entered for example 0 850 With this value entered the DA Meter will beep to alert you to the fact that a voltage reading lower than 0 850 Volts has been made This would be a location that you might want to check again and mark if the lower reading persists 29 Step 13 Select the GPS Receiver Being Used If Any By tapping once on the GPS Type field pull down list arrow button on the Setup 2 of 5 screen the screen shown below will appear Survey Survey Options Help ita Max acceptable Far and Near Ground Reading difference 5 AC System eo Hz z E s aPS Required Eeep if belbw fc 8s0 K GPS Type ma E ee p y GPS Type HET V Use GPS for Altitude Never Beep None 9999 Never Beep GPS Port aT V Log GS at Flags NI Log G5 at DCP Feature Manual Previous Cancel PRDAMeter PIS io o ca rm k This selection pertains to a GPS receiver that can be connected to the DA Meter The GPS receiver can be called upon to log the precise location of Devices or Geographical Features that are encountered during a CIS As can be seen from the screen there are 4 choices for GPS Type None This means that a GPS receiver is not being used MCM This means that an MC
102. oltage value sampled 150 ms after the rectifier current was switched from the OFF to the ON state Next select your current interrupter s Downbeat frequency As indicated by tapping on the pull down list arrow button in the Downbeat field there are 3 selection choices Each Minute Each Hour and Midnight If Each Minute is an option for your current interrupter we suggest making this selection Also if your interruption cycle starts with the current in the ON state the first transition is from ON to OFF place a tick in the Start Cycle box remove the tick if the opposite is true The Each Minute designation indicates to the data logger that a new interruption cycle will 95 begin at the top of each minute Consequently the data logger can reference its timing to the top of each minute In this instance your On plus Off times your waveform period should be an even multiple of 60 When using a GPS receiver unit you need to select the Com Port that is used by the DA Meter to communicate with attached devices On the present DA Meters this port is the COM 1 Port By tapping once on the OK button you will be returned to the voltmeter settings screen CURRENT shunt voltage This mode would be selected if you were using the DA Meter to measure current via a shunt By selecting this mode the screen shown below will appear Voltmeter Current Voltage Factor Current 4 0 0019 i 000 1
103. on number 12 0 0 your Setup 3 of 5 screen would be as shown below Survey Survey Options Help vn A Setup 3 of 5 Name of PIL ABT yale Segment Flag Dist Error Limit Dist Per Reacing Distance Between Flags t 45 Stating Location SA 12 0 0 Station Number w set once during initial satup F oameter PLS D F XQ 9 29 AM Step 21 Tap once on Next button on Setup 3 of 5 screen The Setup 4 of 5 screen will appear as shown below Survey Survey Options Help vn A Set up 4 of 5 Work Order Technician Name Comments t Description File Name ficompact Flash DAMeter_DATA so12 s9912 mon 12 13105 9 10 16 AM set once during initial set once during initial setup at the Control Panel Astat preDaMeter_PLe D E 9 10 am 88 Step 22 Provide the Work Order Number for the SP survey By tapping once in the field labeled Work Order you can type in the work order number for the SP survey if known Step 23 Provide Your Name By tapping once in the field labeled Technician Name you can type in your name Step 24 Provide Comments By tapping once in the field labeled Comments Description you can enter any comments you might have regarding the survey perhaps weather conditions soil conditions etc Also shown on the Setup 4 of 5 screen are the File Name and the date time Note Do not attempt to change the File Name indicated her
104. onclusion of the process the GPS Pathfinder Controller software program will be installed on your PC s hard drive or another location of your choosing and a short cut icon will appear on your desktop screen You can now at anytime connect your GPS Pathfinder receiver unit to your PC or laptop assuming that your PC has ActiveSync installed and configure your GPS receiver unit to be compatible with your DA Meter as described below in Section d c How to Install the GPS Pathfinder Controller Software Program onto your DA Meter The first step is to connect your DA Meter to your PC or laptop again making sure that you have ActiveSync installed and to switch on the DA Meter Next double click on the icon labeled fex21 Installer for Pathfinder Controller or H 206 Installer for Pathfinder Controller depending on which model of DA Meter you have fex21 or H 206 The next step is to follow the instructions associated with the Installation Wizard that will guide you through the simple installation procedure At the conclusion of the process the GPS Pathfinder Controller software program will be installed on your DA Meter and a short cut icon will appear on the desktop screen as illustrated below 127 CE7Zo00om0 F 4 Gs Pathfinder Controller ails DAMetersS _DAMeterFLS Handheld PC 2000 Recycle Bin SAstart Rag 3100 kals You can now at anytime connect y
105. ons Hee il Dist Fom Start Dist Fom Known Station aa None Selected pI DAMeter_PLS Bu 2 LBR This is the Main Survey Window At this point a survey has not been set up the setup process is what we are going through here and so no information is currently displayed in this window Step 3 Tap once on the Survey button situated in the Menu Bar in the top left hand corner of the window The window shown below will appear vme New Survey Ctrl4N Continue Previous Survey Ctrl C Finish Survey tri F Exit CtrH Xx Dist From Known Station Range None Selected Geo Feat Device Read pts DAMeter_PLS Under Survey there are several options If this is a new survey not a continuation of a previous survey tap once on New Survey The window shown below will appear 49 Enter New Survey Filename Step 4 Enter a filename for the Survey using the keyboard Note This is an important step as the filename is used to identify the survey and also recorded data voltages will be stored in this named file for future retrieval It is highly recommended that a protocol be established for selecting Survey Filenames Critical information should be included in the filename such as pipeline company s name city or state in which the pipeline is located pipeline number and section of pipeline number under survey The protocol developed should be applied c
106. onsistently for each survey For example let s assume that pipeline company XYZ has a pipeline located in Texas and that the pipeline is identified as pipeline 12 and a survey is being performed on section 085 of this pipeline A good filename for this survey would be XYZ TX 12 085 DCVG When this survey file is later accessed with this filename we know the name of the pipeline owner we know the state in which the pipeline is located we know the pipeline number we know the section of the pipeline that was surveyed and we know that it was a DCVG survey Step 5 Tap once on the OK button The window shown below will appear depending on previous settings This is the first of 5 so called setup windows 50 Survey Survey Options Help IA Survey Type Trigger as x x Rectifier Made Cycle ON OFF ix Use Mettic Cane Buttonis Allowed To D C P Survey None Left Right Survey wing Direction Accent Ircreasing Decreasing Accent gt Save set once during iritial setup Astat preDaMeter_PLe BP ie 9 08 AM Step 6 Select Survey Type Tap once on the pull down list arrow button in the Survey Type field to reveal the 5 choices shown in the screen below Survey Survey Options Help vn ee Setup 10f5 Survey Type iia Rectifier Mode Cycle ON OFF v C Use Metric continuous CIS Survey Walking Direction accent Surface FE Read Go Increasing Decteasng
107. or the In Line 67 configuration have push buttons on top of the handles so that the operator can trigger voltage recordings on his command at each of the pipeline survey measurement locations as well as at Devices and Geo Features See Section III 3 Step 8 for a discussion on cane button functionality Step 8 of the DA Meter s Set Up Process The canes data probes are connected as shown to the input terminals of the dual probe adapter and the output terminal of the adapter is connected to a 5 pin Data Probe Connector socket on the top side of the DA Meter NOTE The left hand reference electrode red handled cane is connected to the dual probe adapter via a black band cable while the right hand reference electrode green handled cane is connected to the dual probe adapter via a red band cable This is important since the right hand reference electrode connects to the positive side of the data logger s voltmeter while the left hand reference electrode connects to the negative side of the voltmeter The red band and the black band cables can be bd ce connected to either one of the dual probe adapter s input terminals A GPS unit is also illustrated in Figure 5 Such a unit can be connected to the DA Meter via the 9 pin serial data terminal on the top side of the DA Meter COM 1 Port in order that the position of items such as DCVG Anomalies flags devices and geo feat
108. our GPS Pathfinder receiver unit to your DA Meter via the COM 1 Port on the DA Meter which is the 9 pin serial data terminal on the top left hand side of the DA Meter as you face the screen With the units connected you can configure your GPS receiver unit to be compatible with your DA Meter as described below in Section d d How to Configure GPS Pathfinder Receivers to Output NMEA Data Suitable for Use by the DA Meter Step 1 The first step in the configuration process is to connect the GPS receiver to your PC if you have installed the Controller software program on your PC or to your DA Meter if you have installed the Controller program on your DA Meter Make sure that the battery pack is connected and that battery power is being applied to your receiver unit Step 2 Next double click on the GPS Pathfinder Controller icon located on either your PC s desktop screen or on your DA Meter s desktop screen In either case the window shown below will appear 128 2 Pathfinder Controller GPS Settings Status Help GPS is disconnected Pott com v You should then select the appropriate COM port which is COM 1 for the DA Meter case and typically COM 1 in the case of your PC or laptop Step 3 Click or tap on Settings on the above window This will pull up the window shown below ry Pathfinder Controller x GPS PAUS Status Help GPS Settings NMEA Settings Real time Settings
109. pactFlash memory card Hard RESET To perform a Hard RESET press and hold down simultaneously the following 4 keys for about 6 seconds The two contrast keys the power key and backlight key see Figure 1 above When you perform a Hard RESET the unit will switch itself off You will need to press the power button to switch the unit on again Note A Hard RESET should be used as an emergency procedure only When you perform a Hard RESET you will lose the Windows registry and the DA Meter s survey application programs Your survey data itself however will be safe as these data are stored on a non volatile CompactFlash memory card Consequently after performing a Hard RESET you will have to re install the DA Meter s survey application programs via your PC from the CD you received with your DA Meter or via the Support page on the M C Miller website for the latest version of the DA Meter software Also you will have to recalibrate the touch screen and re enter your personal settings which will have been lost with the lost registry II 4 How to Re install the Survey Application Programs from our CD and how to install our Software Updates As indicated in Sections II 2 and II 3 above since the survey application programs the programs that allow you to run pipeline surveys and scripted site surveys using the DA Meter are stored in RAM a volatile memory you will have to re install these programs onto
110. plications Installing M C Miller Co Inc MCM Voltmeter Cancel 12 The above window indicates that the voltmeter program is being re installed on the DA Meter and it will be stored in a memory location selected by MCM the default location Finally the window shown below will appear Application Downloading Complete Please check your mobile device screen to see if additional steps are necessary to complete this installation The above window indicates that the process of downloading the voltmeter program to the DA Meter has been completed Note You are directed by this window to view the screen on your DA Meter You should see a window on your DA Meter screen asking for a response and you should click on the OK button on this window Finally click on the OK button on the above window You would then go through a similar process for downloading the site survey and pipeline survey programs and finally the Proactive driver program At this point you will have successfully re installed the MCM software application package onto your DA Meter How to Install an Updated Software Application Package onto your DA Meter If you receive an updated software application package from MCM in the form of a CD you would install the update following the exact procedures outlined above Again please make sure that you run the installation program on the PC or laptop that houses your ProActive program in order that
111. put NMEA Data Suitable for Use by the DA Meter cece eee 128 SECTION I INTRODUCTION The DA Meter data logger manufactured by MCM is a combination of a high input impedance digital voltmeter and a handheld personal computer PC The operating system of the handheld PC is Microsoft Windows for Handheld PC 2000 and MCM has designed proprietary application software programs in order that the DA Meter can be employed to run Pipeline Surveys such as CIS DCVG and Surface Potential Surveys and also Scripted Site Surveys Your DA Meter will arrive from MCM with the Windows operating system and our survey application programs pre installed The survey application programs will remain installed unless the main battery pack and its backup are allowed to fully discharge in which case the application programs will have to be re installed see Section I 4 However your survey data will always be safe regardless of battery status as these data are stored on a non volatile CompactFlash memory card The DA Meter is designed to work hand in hand with ProActive which is MCM s Pipeline Integrity Database Management Software Package Pipeline Surveys such as CIS DCVG and Surface Potential Surveys are set up on the DA Meter itself and completed surveys are uploaded from the data logger to ProActive where the survey data can be managed in a whole host of ways inside ProActive see our manual entitled
112. r of the Save As window This process will save the waveform data in the DA Meter s CompactFlash memory for future retrieval by ProActive s driver and return you to the Waveform screen You can change the Voltmeter s settings range and reading mode if desired while in the Waveform observation mode by tapping on the pull down list arrows in the boxes labeled Voltage Range and Display Mode and highlighting your new selections Finally by tapping on the Load button on the Waveform screen a list of previously saved waveform files files with the extension wfm can be viewed and these files can be opened by tapping once on the file name To return to the Survey screen tap once on the Exit button on the Waveform screen 100 SECTION IV USING THE DA METER TO PERFORM SCRIPTED SITE SURVEYS IV 1 Introduction In addition to being used for pipeline survey applications as discussed above in Section III the DA Meter is also designed to be employed in the performance of Scripted Site Surveys Site Surveys are typically performed either on an annual basis or on a bi monthly basis and involve collecting data at specific sites or devices associated with a pipeline system such as test stations rectifiers valves etc The term Scripted is used to describe a site survey involving a route that has been designed or scripted ahead of time A route is created in
113. rding interval is expected to be 5 0 feet and the survey flag separation is 100 feet that means that 20 recordings are expected If however only 15 recordings are actually made between survey flags an error window will appear on the screen since there is a 25 difference between the expected and actual number of recordings made No error window will appear if the difference is less than 20 for this example ie you could have a minimum of 16 recordings and a maximum of 24 recordings between survey flags to stay within the 20 max error allowance Step 17 Select whether or not you would like the recordings to be uniformly spaced between survey flags in cases where the actual number of recordings made between flags deviates from the projected number flag separation recording interval By tapping in the box labeled Auto Pacing Mode and inserting a tick in the box you will enable the DA Meter to automatically adjust the actual recordings and space them evenly over a 100 feet span distance between survey flags regardless of the actual number of recordings made This selection is highly recommended Step 18 Provide the Name of the Pipeline 86 By tapping once in the field labeled Name of P L you can type in the pipeline name Note This is not the same as the filename for the SP survey that was selected back in Step 4 This is the actual name of the pipeline Step 19 Provide the Valve Segment Identification
114. recording a second time as part of the Total mV determination process see the DCVG Training Manual Step 13 Finally on the above screen select the electricity supply operating frequency of the country in which you are performing the surveys 60Hz or 50Hz For the U S select 60Hz Step 14 Tap once on the Next button The specific screen that will appear Setup 3 of 5 screen will depend on whether or not you selected Metric units 56 The screens shown below will appear for the non metric and the metric cases respectively Survey Survey Options Help vn A Setup 3 of 5 i Flag Dist Error Limit Ro Name of PiL Dist Per Reading 12 5 ft Valve Segment Distance Between Flags 100 f Stating Location Auto Pacing mede 7 040 0 Station Number set once during initial sstup m Previous Cancel Pmoameter pis DF uo 9 14 AM Survey Suver options tee N E Setup 3 of 5 fy Flag Dist Error Limit o e snt a Dist Per Readng a 10 m Yale segment Distance Between Flags m Stating Location Auto Pacing Mode A 0 0 Station Number w tsat once during initial satup oameter Pis D F uo 9 15 AM Step 15 Select Voltage Recording Interval Distance Between Recordings By tapping once in the field in the Setup 3 of 5 screen labeled Distance Per Reading you can type in the voltage reading interval distance in feet or meters
115. red back at Step 17 Distances would be in meters if the metric option had been selected Also the Distance From Known Station parameter will increase in the same increments as voltages are recorded The difference in this case however will be that when a known station is registered this distance parameter will begin again at zero In other words this will show the distance you are assumed by the DA Meter to have traveled from the last known station that you encountered and registered You are now ready to perform a DCVG Survey You are referred to our DCVG Training Manual DA Meter Version for information and recommendations on how to actually perform DCVG Surveys using the DA Meter data logger This Training Manual also provides an overview of the physical principles associated with DCVG Surveys 66 II 4 How to Connect the DA Meter with the other Test Equipment for DCVG Survey Applications The cable connections for DCVG surveys employing MCM test equipment are illustrated below in Figure 5 DA Meter and Equipment Hook up DCVG only Right Hand Left Hand Pipeline Figure 5 Cable Connections for Hook Up of MCM s DCVG Survey Test Equipment As can be seen from Figure 5 a pair of canes reference electrodes is illustrated the left hand cane RED handled cane and the right hand cane GREEN handled cane These canes which will be placed on the soil above the pipeline in either the Perpendicular
116. rompt Prior Reading Coa Ta Enamel Logged 7 1 04 Currant Reading 7 Cold Appied Tape Poke Cold Applied Tare Texran ISomastic Remarks H okup Help fee 11 21 PM Site Info Asta Site Gnas 116 SU11 Valve Ground Level Condition Next_Site gt gt lt Prior Prompt Next Prompt Frior Reading Fair Logged 7 1 04 Current Reading 2 Logged UNASSIGNED Remarks Poor Astat Site Surveys ee 8 11 32 pu SU11 Valve Ground Level Corrosion lt lt Prior Site Next Site gt gt Next Prompt Frior Reading Average Logged 7 1 04 Currant Reading p Logged iookup Help ef 11 33 PM Remarks Site Surveys SU11 Valve Ground Level Coating lt lt Prior Site Next Site gt gt Prior Prompt Next Prompt Frior Reading Coa Ta Enamel Logged 7 1 04 Current Reading 2 Cod Ta Enamel Cold Applied Tape Potyke Cold Apnied Tare Texran PE 11 33 PM As can be seen from the above 7 prompt screens either specific types of voltages such as pipe to soil are read and recorded by the DA Meter when the operator is prompted to setup such measurements or the operator is prompted to enter his her observations regarding the condition or status of a site 117 The specific data to be collected at each site on a route are dictated by the scripts that are gener
117. route data Next you would enter the type of weather condition you encountered during your route by clicking on the pull down list arrow button in the Weather field and making your selection from the list provided Next you would make an entry in the Description field Note This is an important entry as you will be effectively naming your site survey here Since you will build up a history of surveys done on a particular route over time you might want to develop a naming system for surveys associated with a particular route Finally the start date the date that data were recorded at the first site on the route and the last date the date that data were recorded at the last site on the route will be entered automatically based on the uploaded data When all of the above entries have been made you would click on the Go button which would initiate the survey data uploading process to ProActive IV 5 How to Use the DA Meter as a Stand Alone Voltmeter Waveform Analyzer Site Survey Program The DA Meter can be used as a stand alone voltmeter waveform analyzer in situations where such applications maybe warranted in association with the performance of a scripted site survey For example at sites on your scripted survey where you can make electrical contact with the pipeline you might wish to confirm that the CP rectifiers are switching On and Off at the prescribed cycle rate and that the I
118. s selected Pressing a cane button will do nothing In this case you would have to tap the accept and then save buttons on the screen having previously tapped the device button if you wished to read and record the voltage data at the Device location If accept is selected Pressing a cane button has the same effect as tapping the accept button on the Device Readings screen If accept and save is selected Pressing a cane button has the same effect as tapping the accept button and then tapping the save button on the Device Readings screen For the most part selecting the accept and save choice will be preferable since voltage recordings at special data collection points such as rectifiers test stations valves etc are important and should be saved as part of the overall CIS and the most convenient way to do this is to use the push button on one of the canes having tapped on the Device button on the screen when a Device is encountered Step 8a Make Survey Walking Direction selection The Survey Walking Direction field is shown in the screen above as part of the Setup 1 of 5 screen There are only 2 selection choices Increasing and Decreasing This selection establishes the walking direction during the survey If the survey is going to entail walking from a low numbered test station to a higher numbered test station for example select Increasing b
119. s until such times as a new waveform cycle has occurred On Off Pairs Min Max mode This voltmeter mode would be selected if you were performing a High Low CIS but the DA Meter was having trouble distinguishing between the High and the Low voltage readings This would be the case for example if the IR drop was very small remember that the difference between High and Low voltage readings in a current interrupted CIS is just the magnitude of the IR drop In this case the voltmeter would determine the average of the maximum and minimum voltages read during each rectifier current cycle With this voltmeter reading mode selected the screen shown below will appear Survey Survey Options Help vn A Setup 5 of 5 Voltmeter Setting Read Made k Off Pairs Min Ma Range 5 7 VOC 400 MOhm Cyce ims y ms Moving Average Samples EPE 10 09 AM Again you would make your selection of ON and OFF cycle times In this case you would also provide a number for the Moving Average Samples In the above case since the number 4 has been entered 4 sample readings would be used to compute an average value for the Minimum Min voltage reading during each OFF portion of the cyclic waveform and also 4 sample readings would be used to compute an average value for the Maximum Max voltage reading during each ON portion of the waveform PisDAMeter_PLS On Off Pairs GPS Sync This voltmeter mode can be selected if you
120. settings changes click on the Start Voltmeter button When you have completed your stand alone voltmeter measurements you would click on the Stop Voltmeter button and then click on the Done button which will return you to the Survey screen By tapping on the pull down list arrow button in the Range field you can make your selection of full scale range either DC or AC and also value of Input Impedance required for the voltmeter to make a particular type of reading from a list of options By tapping on the pull down list arrow button in the Read Mode field you can select from the following voltmeter reading mode choices ON Depolarization This is a single read mode where either the rectifier current is permanently ON or the rectifier current is OFF ON OFF In this case High and Low voltages would be determined by digital signal processing techniques ON OFF Min Max In this case a number of sampled readings would be averaged to determine both the High and the Low voltages during each cycle The specific number of readings used by the voltmeter to come up with these averaged values would be dictated by the number that you enter in the Moving Ave Samples field which appears when you select this reading mode The default number is 4 ON OFF GPS Sync This mode can only be selected if you are using an MCM GBPS receiver unit on the DA Meter AND you are using rectifier current interrupt
121. t of your GPS unit In most instances logging standard ie uncorrected GPS data would be preferable to not logging any GPS data Use GPS Altitude If this box is ticked altitude data will be included with the position data whenever GPS data is logged Note Altitude data on some GPS units is not particularly accurate in CIS applications Log GPS at Flags If this box is ticked GPS location data will be logged automatically at flags when either the flag button is tapped directly on the survey screen or when the push button on the designated flag cane is pressed Log GPS at DCP Feature If this box is ticked GPS position data will be logged automatically at Devices or Geo Features when either the Device button is tapped on the survey screen and a Device reading is logged or when the Geo Feat button is tapped on the survey screen and a geo feature is noted 31 Auto Log GPS By tapping on the drop down menu button in the Auto Log GPS field the selections available will be displayed as indicated below Survey Survey options tee N E Max acceptable Far and Near Ground Reading difference 5 Beep if below 9999 y GPS Type NMEA C Differential GPS Required 9999 Never Beep CPS Port _ Use GS for Altitude V Log GPS at Flags Auto log GPS A V Log s at DCP Feature acing a Every 2 Reaciry Sie Astat preDaMeter_PLE D la 11 56 AM By sele
122. tch Box is connected to the 5 pin terminal labeled Meter on the Switch Box Finally the banana plug cable connecting the Hip Pack Trail Wire to the Switch Box is connected to the banana plug terminal labeled Structure on the Switch Box GPS receiver units if employed would be connected to the data logger via the 9 pin serial data connection terminal on the top side of the DA Meter COM Port With a GPS unit the location of items such as flags devices geo features and anomalies can be recorded during the performance of combined surveys either manually by tapping on the Log GPS button on the survey screen at each critical location or automatically by pre programming the data logger as described in Section III 3 Step 11 How to Attach Cables and Accessories to the DA Meter The terminals on the top side of the data logger for the various connections described above are illustrated in Figure 8 below 5Pin Data Probe Connector GPS Connector Positive Terminal Negative Terminal 9 Pin Communication Port D Db U N m Figure 8 Connection terminals on top side of the DA Meter The 5 pin Data Probe Connector Socket is shown above as Terminal 1 As discussed above the reference electrode canes are connected to this terminal via the Switch Box The terminal labeled as Terminal 2 is reserved for future applications 75 The red and black banana plug terminals Terminals 3 and 4 are not used i
123. te with respect to a copper copper sulphate reference electrode These voltages can be compared to the readings that were logged previously on 7 1 04 at this site see Prior Reading field When the current readings are logged by tapping on the Read button these readings will be displayed in the Current Reading field The voltmeter s Range and Input Impedance settings that were scripted on the ProActive side for this prompt are indicated in the top middle of the screen as is the reference electrode type to be used Data can also be entered manually by tapping on the Manual button and entering voltage values manually using the keyboard For instance you might measure these voltages for some reason using an independent voltmeter and this would be how you d enter such data Or you might wish to manually enter current and voltage data straight off of meters at rectifier sites rather than using the data logger to record the current and voltage values Note You can navigate to previous or next sites or to previous or next prompts from a prompt screen by tapping on the relevant buttons on the screen see above screen or you can use the keyboard to perform the same functions as follows in each case the Fn key is depressed simultaneously Home key moves to prior site End key moves to next site PgUp key moves to prior prompt PgDn key moves to next prompt 113 If on the ProActive side instru
124. tem eon 7 GPS Type NMEA i C Differential GPS Required GPS Port Use Gs for altitude oo V Lag GS at Flags Auto Log GPS Mever V Log G5 at DCP Feature M Log GS at Side Drain Ancrmaly Pm oaMeter PLS Be s c9 am By tapping on the pull down list arrow button in the GPS Type field you can select the type of GPS unit you will be using if any from the list shown below There are 4 choices for GPS Type None This means that a GPS receiver is not being used MCM This means that an MCM GPS receiver is being used NMEA This means that a GPS receiver other than the MCM receiver that is capable of outputting NMEA data is being used 82 Manual This means that location data will be entered manually when the GPS button is pressed on the survey screen during a DCVG survey Select the appropriate choice by tapping on your selection Step 11 Select GPS Options After selecting the GPS Receiver Type choices need to be made regarding GPS Options If a GPS receiver has been selected for use with the DA Meter for a particular SP survey all or some of the functions available can be enabled box ticked A box can be ticked or unticked by tapping inside the box The GPS options available are as follows Differential GPS Required This box should be ticked if you only want differentially corrected real time corrected GPS data to be logged by the DA Meter If this box is ticked only GP
125. the GPS Type field you can select the type of GPS unit you will be using if any from the list shown below 53 Survey Survey Options Help vm ee AC System ec Hz z GPS Type Mat _ Differential GPS Required M Use GS for Altitude GPS Port pa V Log GAS at Flags NMEA V Log G5 at DCP Feature DCWG Anomay May mV 1st reading for Tot miwanual 7 Log GPS at Side Drain Ancmaly BMDAMeter PLS D Fro o12am FA As can be seen from the above screen there are 4 choices for GPS Type None This means that a GPS receiver is not being used MCM This means that an MCM GPS receiver is being used NMEA This means that a GPS receiver other than the MCM receiver that is capable of outputting NMEA data is being used Manual This means that location data will be entered manually when the GPS button is pressed on the survey screen during a DCVG survey Select the appropriate choice by tapping on your selection Step 11 Select GPS Options After selecting the GPS Receiver Type choices need to be made regarding GPS Options see screen above If a GPS receiver has been selected for use with the DA Meter for a particular DCVG survey all or some of the functions available can be enabled box ticked A box can be ticked or unticked by tapping inside the box The GPS options available are as follows Differential GPS Required This box should be ticked if you only want diff
126. the Combined DCVG CIS Survey screen looks very similar to the DCVG survey screen see Section III 3 for a full description of this screen 72 The major difference however is the presence of the CIS button You can at anytime during the Combined Survey tap on the CIS button to view the CIS data that has been recorded The data will be displayed on the graph After viewing the CIS graph you can return to the above screen by tapping on the DCVG button which will have replaced the CIS button As mentioned in the Introduction to this section DCVG and CIS data can be collected at each measurement location by virtue of using an MCM Switch Box When you select the DCVG CIS Survey Type the DA Meter will enable the DCVG CIS Switch option You can check to make sure that this Switch option has been enabled by tapping on Survey Options and then tapping on Settings which will pull up the screen shown below covey 1 Cettings fa Change Global Settings Ctrl G View Settings Ctr S a 2 Yoltmeter Settings Lecation Ctr Voltmeter ctr M Dist From Start Valdation CtrhL Wave CtrH Update Feature List Ctil J v Use DCVG CIS Switch Dist From Known Station Edit Survey Data Ctrl E GPS Stati Delete Last Reading Ctrl D Geo fea Add Comments Ctr o cas laps meal aps ndo Flag Restart Flags Ctrl F
127. the DA Meter Driver will get updated with any updates the new driver program might contain Alternatively you may receive an email message from MCM indicating that a DA Meter software update is available In this case the email message will provide a link to an MCM web page from which you can download the latest DA Meter software When you click on the web page link a File Download window will appear It is recommended that you select save on this window and identify a hard drive location on your PC or laptop where you d like to save this software package Alternatively you could run the installation program from its present location a temporary internet file however by saving the program you can access it to re install this updated software anytime a re install process is required see above Sections By selecting save you will have saved a compressed zipped folder containing the updated software package In order to run the DA Meter Installer program you should extract the contents of the zipped folder and save them in a new unzipped folder You would then open the unzipped folder The contents of this folder will look very much like the contents of the CD illustrated in the above section Note Please make sure that the unzipped folder contains both the DA Meter Installer EXE folder as well as a file labeled dampkg int Both of these files are required to be in the same folder in order for the i
128. the top side of the DA Meter This effectively connects the canes reference electrodes to the negative terminal of the data logger DA Meter For CIS the cables connecting the data probes to the dual probe adapter are both black band cables In order that the DA Meter will record pipe to soil voltages when the canes are triggered the positive red banana plug terminal on the back of the DA Meter is connected as shown to the pipe via a spool of wire contained in a Hip Pack The connection to the pipe is made by hooking a cable from the red terminal on the DA Meter banana plug terminal to the banana plug terminal on the underside of the Hip Pack and connecting the trail wire coming out of the topside of the Hip Pack to the Test Station Electrode and therefore to the pipe A GPS receiver unit is also illustrated in Figure 3 Such a unit can be connected to the DA Meter via the 9 pin serial communication port COM 1 on the top side of the DA Meter in order that the position of items such as flags devices and geo features can be recorded during the performance of a CIS either manually by tapping on the log GPS button on the survey screen at each critical location or automatically by pre programming the DA Meter as described in Section HI 1 Steps 13 and 14 How to Attach Cables and Accessories to the DA Meter The terminals on the top side of the DA Meter for the various connections described above are illustrated belo
129. tifier cycle in this example the pipe to soil voltage is High for 0 7 sec and Low for 0 3 sec as evidenced by the 1 second snap shot of the voltage waveform shown in the above screen Since the voltmeter in the DA Meter has a finite response time 80ms in the 5 7V 400MOhm setting the transitions from High to Low and Low to High are not perfect right angled steps Also since the voltmeter samples the voltage only 50 times per second every 20 milliseconds any AC components of the waveform with a frequency higher than 50 Hz will be filtered out by the voltmeter 99 However these voltage waveforms are very useful with regard to confirming multiple rectifier synchronization for example and with regard to checking for On to Off and Off to On transition spikes To record a pipe to soil voltage waveform tap on the Save button on the above screen You are being asked here to establish a file in which the waveform data will be stored saved The name of this file will be the name you type into the Name box on the Save As window For ease of future retrieval when you upload your survey data to ProActive it is recommended that you use the same name as your survey filename with the addition of something like Wave TS 1 to the file name This would represent the waveform data recorded at Test Site 1 You should then tap once on the OK button which is located in the top right hand corne
130. tion of a survey is discussed in our Surface Potential Training Manual DA Meter Version Step 1 Switch on the DA Meter by pressing the power button see Section II Assuming that the battery pack is charged see Section II the screen will light up and will display the Windows desktop screen as shown below assuming that the operating system running your DA Meter is Windows Handheld PC 2000 76 My Handheld PC h Meier DAMeterss OAMeterRls pes Handheld PC 2000 E Recycle Bin Rox EDan Bi Step 2 Double tap using the special pen stylus provided with the DA Meter on the DA Meter PLS icon This will open the software program that will run the DA Meter in pipeline survey mode The window shown below will appear Note It may take a few seconds for this window to appear Survey Survey Options ner 7 N T Lecation Dist Fom Start Dist From Vv save antec Gas REV Known Station Range None Selected pelle ARR PENE AEI AAEE SRN feo Feat Device GPS Datal Log GPS bnde Flaq Flag pi DaMeter_PLS Du 2 145mm Kal This is the Main Survey Window At this point a survey has not been set up the setup process is what we are going through here and so no information is currently displayed in this window Step 3 Tap once on the Survey button situated in the Menu Bar in the top left hand corner of the window The window shown below will appear
131. tmeter Read Mode Selection Tap once on the Next button on the Setup 4 of 5 screen The Setup 5 of 5 screen will appear as shown below 37 Survey Survey Options Help x Setup 5 of 5 Voltmeter Setting Read Mode Range 5 7 Y DC 400 MOhm Astat pm oaMeter_Pus Red 9 17 PM The above screen is used to establish the mode in which the digital voltmeter will be operating during the CIS measurements Remember the data being logged by the DA Meter are actually voltages that are measured by a voltmeter The 5 choices available for the voltmeter s reading mode are observed by tapping once on the pull down list arrow button in the Read Mode field The screen will appear as shown below Survey Survey Options Help Setup 5 of 5 Voltmeter Setting Read Mode Silene 5 7 V DC 400 MOhm Astat preDaMeter_PLE Bo 2 12 AM The 5 choices for voltmeter mode are as follows Note Selection of voltmeter mode should be made with reference to your selection of Rectifier Mode back at Step 9 and your selection of GPS Accessory back at Step 13 Single Read This voltmeter mode would be selected if you were performing a 38 non interrupted CIS with either the rectifiers ON continuously Always ON or OFF continuously depolarized pipeline On Off Pairs DSP mode This voltmeter mode would be selected if you were performing a High Low CIS current interrupted CIS In this mode the voltmeter
132. ures can be recorded during the performance of a DCVG survey either manually by tapping on the Log GPS button on the survey screen at each critical location or automatically by pre programming the DA Meter as described in Section III 3 Step 10 How to Attach Cables and Accessories to the DA Meter The terminals on the top side of the DA Meter for the various connections described above are illustrated in Figure 6 below 68 5Pin Data Probe Connector GPS Connector Positive Terminal Negative Terminal 9 Pin Communication 7h Ts p Port th b U N Figure 6 Connection terminals on top side of the DA Meter The 5 pin Data Probe Connector is shown above as Terminal 1 As discussed above the reference electrode canes are connected to this terminal via the dual probe adapter Again the reference electrodes are effectively connected to the positive green handled cane or negative red handled cane sides of the voltmeter with this connection Consequently the red and black banana plug terminals Terminals 3 and 4 are not used in this application Terminal 5 is a GPS receiver terminal A GPS receiver capable of outputting NMEA data such as a Trimble Pathfinder unit or the MCM unit would be connected to Terminal 5 9 pin terminal Terminal 2 is currently earmarked for future use Finally Terminal 5 is also used after performing a DCVG survey and removing the GPS unit if used to connect a serial data
133. uses digital signal processing to determine the voltage during the ON portion of the rectifier current cycle and the voltage during the OFF portion of the current cycle A measurable difference between the High and the Low voltage readings is required for this mode ie a measurable IR drop is required With this voltmeter reading mode selected after tapping on the OK button the screen shown below will appear Survey Survey Options Help vn ee x Setup 5 of 5 Voltmeter Setting Read Mode S 5 7 VOC 400 MOhm Cyde ms On fz00 Astat peosmeter Ps Dud 10 07 am Al The specific On and Off times for the particular current interruption waveform cycle that will be employed during your CIS should be entered in the Cycle ms fields The On and the Off times should be entered in milli seconds Note Ideally the interruption waveform period which is the On time plus the Off time should be less than the time between triggered voltage recordings on a CIS For short waveform periods lt 1 second for example this is not a concern as a typical walking pace would translate to a time between triggered voltage recordings of greater than 1 second However care should be taken if longer waveform periods are in effect for example several seconds long waveform periods in which case a slower 39 than normal walking and triggering pace would have to be employed to avoid recording several same value reading
134. vey types Setting Up Combined Surveys The set up procedures for Combined DCVG CIS applications as far as the DA Meter is concerned are very similar to those detailed above for DCVG surveys You are referred to Section III 3 for specific information on screen selections Survey Survey Options Help vn pase Survey Type pegas l v r Rectifier Made Cycle ON OFF Ty Use Metric Cane Button s Allowed To D C P Survey None Right Survey Walking Direction accent lead Qead Increasing Decreasng accent gt Save Bg DAMeter PLS BP to 10 24 am Al The first step is to select DCVG CIS from the pull down list in the Survey Type field as shown on the above screen You will notice that you are not able to select the functionality for the left and right hand data probes in this survey type since as discussed above the push button on the right hand cane green handled cane is disabled You will initiate the recording of first the DCVG data and second the CIS data by pressing the left hand cane s push button at each measurement location down the length of the pipe 71 You can however select the functionality you desire for the left hand cane s push button during Device measurements ie measurements at data collection points D C P s As before you can select None which will mean that pressing the push button at Devices will do nothing you can select Accept
135. w in Figure 4 46 5Pin Data Probe Connector GPS Connector Positive Terminal Negative Terminal 9 Pin Communication 7h Ts p Port th b U N Figure 4 Connection terminals on top side of the DA Meter The 5 pin Data Probe Connector is shown above as Terminal 1 As discussed above the reference electrode canes are connected to this terminal via the dual probe adapter Again the reference electrodes are effectively connected to the negative side of the voltmeter with this connection Consequently the black banana plug terminal Terminal 4 is not used when push button canes are employed The red positive banana plug terminal for connection to the hip pack is shown as Terminal 3 This will establish connection to the positive side of the voltmeter Terminal 5 is a GPS Accessory terminal A GPS receiver capable of outputting NMEA data such as a Trimble Pathfinder unit or the MCM unit would be connected to Terminal 5 9 pin terminal Terminal 2 is currently earmarked for future use Finally Terminal 5 is also used after performing a CIS and removing the GPS receiver unit if used to connect a serial data communication cable to a PC in order that the survey data recorded by the DA Meter can be uploaded to a PC see our CIS Training Manual DA Meter Version for information on how to upload your survey files to your PC 47 III 3 How to Set Up the DA Meter for DCVG Survey Applications The following s
136. wn list arrow in the Technician field and selecting an existing name on the list Next select the survey type by clicking on the pull down list arrow button in the Survey Type field and making your choice from the list presented 103 Note This is an important selection since your choice in this category will determine which reading types will appear as prompts for particular devices based on the selections that were made on the ProActive side For instance since we have selected Annual for the Survey Type in our example above this would mean for this example route that prompts would be downloaded for all reading types for which an annual survey type was selected Prompts would not be downloaded for any reading type for which annual was not a survey types selection during the reading template set up process see the ProActive Training Manual Next check off the Include Atmospherics box if you plan to record visual observations data on your route If atmospheric types have been selected for a particular device on your route but you choose not to include atmospherics the Atmospherics page for that device will not be downloaded with the route ie you will not see prompts for the atmospherics on your data logger screen Finally check off the Current Interruption box if the rectifier current on your route will be switched On and Off during your route otherwise leave this box unchecked After maki
137. y tapping once on the circle beside Increasing Select Decreasing if the opposite 1s true 22 Step 8b Make selection of Metric units if required By checking off the box labeled Metric the reading interval distance between voltage recordings and the flag internal flag spacing will be displayed on the Setup 3 of 5 screen in meters as opposed to feet Step 8c Check off DCVG Sidedrains in CIS Survey if you plan to log DCVG sidedrain readings at previously located anomalies during the course of a CIS By doing so a special Device selection named Mark DCVG will be made available in the Device list which has a sidedrain prompt associated with it as indicated in the screens shown below Device Readings Reconnect Single Test Station est Station w AC ine Crossing w No Bond ine Crossing wf Bond Line Casing Test Station n Mark DCVG Astat preDaMeter_PLE 2 9 12 09 pm Mark DCYG Mark DCWG DCVG Side Drain On mi 1 2 Off mY 0 7 Total mi 0 5 Reading Mode ON OFF GPS Sync Voltage Range 5 7 VOC 400 MORM Di3 12 11PM A 23 The Mark DCVG device will not appear in the Device list if this box is not checked which would be the case if you were conducting a regular CIS If the following selections have been made so far the Setup 1 of 5 screen will appear as shown below Survey Type Trigger CIS Survey Flag Read D
138. y to perform a close interval survey using the DA Meter You are referred to our CIS Training Manual DA Meter Version for information and recommendations on how to actually perform a CIS using the DA Meter data logger This Training Manual also provides information on the use of our Reference Electrode Data Probes and gives an overview of the physical principles associated with a CIS 44 III 2 How to Connect the DA Meter with the other Test Equipment for CIS Applications The connections for CIS measurements employing MCM test equipment are illustrated below in Figure 3 DA Meter and Equipment Hook up CIS sat Trail ire Left Hand Right Hand Fipeline Figure 3 Cable Connections for Hook Up of MCM s CIS Test Equipment As can be seen from Figure 3 a pair of canes is illustrated the left hand cane red cane and the right hand cane green cane These canes which will be placed on the soil above the pipeline in an alternating fashion have 45 push buttons on top of the handles so that the operator can trigger voltage recordings on his command at each of the CIS measurement locations as well as at Devices See Section HI 1 for a discussion on cane button functionality Step 7 of the Set Up Process The canes data probes are connected as shown to the input terminals of the dual probe adapter and the output terminal of the adapter is connected to a 5 pin Data Probe Connector socket on
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