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Manual
SBL10

21 / 69

Version 1.27

Carrying out the Survey

6

Getting Started

6.1

The following information need to be clear before starting a survey:

·

Which area will be surveyed? This area needs to be marked clearly.

·

Does the survey area contain objects which might influence the survey e.g. railway tracks,
fences, wells? According to these conditions, the mode of the device needs to be selected.

·

Which objects are to be located? The measurement range has to be selected based on this
decision. The smaller and the deeper the objects are which you want to detect, the higher is the
required sensitivity .

Get rid of all metallic objects you carry with you and be sure the clothes (shoes) you wear have no
significant magnetic signature.

Area Surveys

6.2

·

Step 1

: Determine the field which is to be surveyed and mark it clearly.

It is helpful to divide the survey field in single survey swathes. The exact width of the swath is
determined by the type and size of objects you are looking for. The smaller the objects, the
narrower the swath should be. The survey is even easier if you mark your swath with (non-
magnetic) guidance like ropes or a pole.

·

Step 2

: Adjust the operating mode according to your survey conditions:

-  Mode 1 for all fields and objects

Summary of Contents for SBL10

Page 1: ...SBL10 SENSYS Sensorik Systemtechnologie GmbH Rabenfelde 5 15526 Bad Saarow GERMANY Manual 49 33631 59 650 info sensys de www sensys de ...

Page 2: ...tion 11 4 Control and Display Unit Functions 14 4 1 Overview 14 4 2 Operation Modes 14 4 3 Measurement Ranges 15 4 4 Acoustic Signal 16 4 5 Power Supply and Battery Check 16 4 6 Compensation 17 4 7 Function Test 18 5 Preparing the Survey 19 6 Carrying out the Survey 21 6 1 Getting Started 21 6 2 Area Surveys 21 6 3 Underwater Surveys 23 6 4 Borehole Surveys 23 6 5 Identify Objects Properties 24 6 ...

Page 3: ...Measurements 43 7 6 Borehole Survey 47 7 6 1 Borehole Fields 48 7 6 2 Preparing the SBL10 51 7 6 3 Measurement of Boreholes 51 7 7 Line Measurements 54 7 8 Referencing 56 7 8 1 Referencing Field Measurements 56 7 8 2 Referencing of Boreholes 58 7 9 Exporting Measurement Data 60 7 9 1 Field Measurements 60 7 9 2 Borehole Measurements 62 7 10 Data Transfer 63 7 10 1 Data Transfer via Cable 64 7 10 2...

Page 4: ......

Page 5: ...does not guarantee that this manual is free of errors and does not grant warranty or liability on damages resulting from error in this manual However the author will be grateful for feedback by third parties who have noticed errors in this document The hardware and software described in this manual is the unrestricted property of SENSYS It is protected by copyright acts and international agreement...

Page 6: ...t specific prior written permission This software is provided by the author as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed In no event shall the author be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement...

Page 7: ...tners assume no liability for damages due to actions that are not mentioned in this manual Advice in Case of Malfunction 2 1 To avoid injuries electrical shocks and the destruction of components do not use damaged supply cables or components Please replace damaged or missing parts only with original parts from SENSYS Otherwise there might be a danger of short circuits overcharge mixing of the pola...

Page 8: ...f time please remove the batteries or the accumulators Damages caused by the inappropriate use of the accumulators short circuit drain mechanical damages and consequential loss cannot be claimed as guarantee The disposal of the accumulators and batteries should only take place in the collecting basins or points designed for this purpose Cleaning Advice 2 3 Please use a moist and soft cloth for cle...

Page 9: ...erference fields can be measured The farther away a ferromagnetic object is from the device the lower is the measured value of the interference field The SBL10 unit measures this interference field with two single axis Fluxgate sensors The sensors are placed in series in a certain vertical distance from each other sensor bottom separation The value of the magnetic interference field results from t...

Page 10: ...l e g belt buckle mobile phone keys etc Otherwise this metal in particular when it has ferromagnetic properties will falsify the measurement results The operator also needs to perform a function test before starting to work with the device An explanation on how to carry out this test is given in Chapter 4 7 Function Test When being used for EOD purposes the device may only be used by specially qua...

Page 11: ...isplays the mode on the LED mode display displays the state of charge of the batteries in the device on the battery meter 2 Instrument Settings mode selection button for mode setting volume control buttons for volume setting the volume rotary switch for measuring sensitivity setting setting of the acoustic signal 3 Other Functions compensation functional test The data transfer interface is located...

Page 12: ...with the SBL10 unit for transporting and storing the device The case is water and dust proof IP67 and is equipped with an automatic air pressure compensation valve two locks and a handle Borehole Probe Option In addition to the standard version the SBL10 can be delivered with an additional borehole probe The additional probe can be used for borehole surveys but also for underwater surveys A specia...

Page 13: ...t is used as listed below Pull first strap under upper part of carrying tube Pull the buckle through the strap Pull second strap under lower part carrying tube between battery compartment carrying tube Pull the buckle through the strap Buckle up the straps and the belt Adjust length of the belt ...

Page 14: ...tion area borehole and underwater surveys Mode 2 Exclusively used for locating objects with a large magnetic interference field Objects having a small magnetic interference field are not displayed due to the increased inertia of the display Fields of application area surveys Mode 3 Auto compensation mode is used for locating objects when a constant magnetic interference field is influencing the su...

Page 15: ...nit features 9 different linear measurement ranges The operator can choose a measurement range between 3 and 20 000 nT full scale The required measurement range can be set by using the rotary switch 7 of the control and display unit An overview of the available measurement ranges is given below Measurement range for mode 1 2 and 3 Measurement Range Sensitivity 1 graduation mark Full Scale 10 gradu...

Page 16: ...d The volume is controlled by two buttons 5 6 on the control and display unit The tone can be muted by pressing 5 repeatedly The set volume is valid for loud speakers and headphones To avoid injuries make sure to decrease the volume when switching from speaker to head phone operation Power Supply and Battery Check 4 5 The SBL10 unit is equipped with two battery compartments each taking three 1 5 V...

Page 17: ...s have a flux density close to the one of the background fields By compensating the device the readings of the background magnetic field are suppressed The device can be compensated in mode 1 and 2 not in mode 3 and 4 The measurement range is selected according to operators needs Follow the steps below for compensation Go to an area with no ferromagnetic objects Only the background field will be m...

Page 18: ... the pointer to move 8 scale divisions given a compensation has been carried out prior to the self test from zero to the right positive range If so the device has passed the test and is ready for operation The functional test can be carried out in mode 1 2 or 3 in all available measurement ranges Carry out the function test in metal free surroundings only The operator also needs to be completely f...

Page 19: ...in to prevent the probe from moving accidentally during the survey When using the device in borehole and or underwater surveys the internal probe remains in its transport position parallel to the carrying tube Step 2b Connecting the External Probe for borehole surveys only Make sure the rotary switch 7 is in OFF position Check all sealings D for integrity Never use damaged sealings for borehole an...

Page 20: ... pointer does not point to zero in the beginning of a survey the device requires compensation as described in Chapter 4 6 Compensation Once the compensation is completed the pointer points to zero while the desired measurement range is selected Function Test We recommend to carry out a function test prior to each survey To do so simply follow the instructions given in Chapter 4 7 Function Test Mea...

Page 21: ...maller and the deeper the objects are which you want to detect the higher is the required sensitivity Get rid of all metallic objects you carry with you and be sure the clothes shoes you wear have no significant magnetic signature Area Surveys 6 2 Step 1 Determine the field which is to be surveyed and mark it clearly It is helpful to divide the survey field in single survey swathes The exact width...

Page 22: ...e value As a next step try to find the opposite pole belonging to the one you ve just marked A If there is no other pole to be found it is likely the object is buried in an upright position In that case the maximum or minimum is considered to be the magnetic center of the object B If you do find the opposite pole which is apparently belonging to the one you ve previously marked survey the thought ...

Page 23: ...rvey itself is carried out as described in Chapter 6 2 Area Surveys Borehole Surveys 6 4 For borehole surveys it is absolutely necessary to followclosely the instructions given in Step 2b of Chapter 5 Preparing the Survey Pay also attention to the fact that a special weight needs to be mounted to the external probe prior to starting the survey To start a borehole measurement lower the external pro...

Page 24: ...n be estimated whenever the signal amplitude is at its minimum or maximum over a very short distance The values increase rapidly and decrease rapidly afterward Large Objects A larger object can be estimated whenever the signal amplitude approaches its minimum or maximum over a large distance The values increase slowly and decrease slowly afterward For very large objects the increase and decrease o...

Page 25: ...m is surrounded annularly by weakly negative values and vice versa Horizontal Position A horizontal position of the magnetic dipole can be assumed whenever positive as well as negative values are displayed which have about the same amplitude The values of the minimum and the maximum will be almost identical Diagonal Position A diagonal position of the magnetic dipole can be estimated whenever a st...

Page 26: ...e spot with the largest negative reading Draw a line between those two marks Step 2 Marking the Area around the Absolute Maximum Value Starting from one of the marks this can be the maximum or the minimum walk along this line towards the other mark until the displayed value has reached half of the absolute maximum value This spot is now marked Next return to the spot you ve started from and walk i...

Page 27: ...e 4 and select measurement range 300 Step 3 Identify cardinal points Turn around your own axis until the pointer in the display indicates zero The device now indicates the direction East West Turn right by 90 with the device If the pointer moves to the negative part of the display while turning 90 to the right the device is directed to the South after the 90 turn Therefore the probe was directed t...

Page 28: ... of area and borehole surveys project management DGPS integration for georeferenced measurements wireless connection to SBL 10 available The following equipment is required for data acquisition during a survey connector cable 1 S6047 or Bluetooth dongle 2 S1064 PDA Archer 2 3 S1070 with software MonSX 3 S5013 mount for PDA 4 S4101 Optional GPS with data output via cable or Bluetooth Archer2 Geo wi...

Page 29: ...and display unit of the SBL10 The SBL10 unit and the PDA need to be paired once as described below Please note that all Systems delivered by SENSYS with PDA and BT Dongle are already paired When facing problems with the PDA please refer to the Archer2 manual which can be found here http www junipersys com Juniper Systems Rugged Handheld Computers support Documentation Archer models Archer 2 1 Open...

Page 30: ...luetooth dongles are named after the pattern BT1 xxxxxx xxxxxx is the serial number of the device Tap next 7 6 You now are requested to enter a password for paring 8 Enter sensys as password and tap next 9 7 The paired device should show up now in the list of disconnected devices 10 To assign a serial interface to the connection tap on com ports 11 8 In the next screen tap on new outgoing port 12 ...

Page 31: ...Secure Connection check box 16 Confirm you selection by tapping Finish 17 10 The final screen should look like the example below 18 Connecting an external GPS with the PDA 7 1 1 Make sure the GPS which is be used with the PDA features the required Bluetooth connection Follow the steps listed in Chapter 7 1 Connecting the SBL 10 with the PDA to set the connection of GPS and PDA 29 ...

Page 32: ...ad the MonSX Install CAB file from the SENSYS support website and transfer it via USB pen drive to the PDA 2 Open the Explorer 1 and use the drop down menu 2 to select the USB stick 3 Double click on MonSX Install 4 3 Confirm that the old MonSX Version can be removed by clicking OK Select Device for installing MonSX and confirm the reboot of the PDA 5 After reboot the MonSX start screen will displ...

Page 33: ...and signal button available as a option for your survey then go to Connection to Hand Signal Button and set COM 1 as port When going to Language you can select either English or German Once the language was selected MonSX needs to be restarted in order to activate the language which was selected Once all settings are made correctly tap on Back 4 To check if the connection to the SBL10 can be estab...

Page 34: ...s de www sensys de Manual SBL10 34 69 Version 1 27 Using the hand signal button Starting and stopping the measurement can be done via a hand signal button which is available as an option It connects to the serial port of the PDA ...

Page 35: ...y it is recommended to reference a field afterwards in MonSX see 7 8 1 Referencing Field Measurements instead of conducting a Line Measurement Option 1 In order to set the connection between the GPS and the PDA follow the steps which are listed in Chapter 7 1 Connecting the SBL 10 unit with the PDA and refer to the manual of the GPS Receiver This step needs to be carried out only once Go to the Mo...

Page 36: ...might be used in parallel which risks to cause delays in data transfer This could cause an offset which cannot be corrected afterward Specific device configurations 1 The optional GPS connection can be established via Bluetooth only It is thus strongly recommended to use a connector cable for the external probe when working with a GPS at the same time 2 In case the PDA is connected to the SBL10 un...

Page 37: ...llation Tap and hold the GNSS Off Icon 5 until the settings are open Select a COM port 6 COM2 by default You will need this COM port later in MonSX Tap on Hardware 7 and Access 8 Check the box to Manage GPS automatically 9 Tap on Format 10 and choose the last one 11 Tap on NMEA Sentences 12 and check only GGA and ZDA Tap on GNSS System 13 and use the settings given in the picture below Save the se...

Page 38: ... have previously assigned to your internal GPS COM2 by default In addition you need to set the interface parameters of the GPS connection The settings have to match the settings that have been made in the GPS settings before By tapping Test 20 you can check if your configuration is correct If this is the case then there is a live view of the GPS data as shown in the example below If you do not wis...

Page 39: ...reen Creating a project Tap Project 1 in the welcome screen which will lead you to a list of available projects To create a new project tap New 2 enter a name in the upcoming screen and tap Create 3 The project is created and the program takes you back to the list of projects A recently created project is not automatically activated Activating a project Tap on Project in the welcome screen to acti...

Page 40: ...roject all linked data will be lost Make sure to back up those data upfront Exporting a project Turn on the PDA and connect the USB flash drive to the PDA s USB interface Tap on Menu Project 5 mark the project and tap again on Menu and Export 6 Select your USB 8 flash drive as the target drive 7 and confirm with Ok 9 The complete project folder will now be copied to the USB flash drive ...

Page 41: ...ch have been created or measured before The green dot indicates the current GPS position in the field map The and buttons at the lower edge of the field map allow for zooming The center button 4 allows for centering to the current GPS position or to the GPS position which was measured last if no current data is available Measurement modes There are two modes available field mode and line mode The ...

Page 42: ... when referencing a field B Sensor Configuration The sensors position is especially important when doing line measurements as it indicated the probes position in relation to the GNSS antenna The draft 7 given below explains in detail which values need to be entered C GPS Configuration In case a GNSS is being used then the configuration which is required for the current project needs to be entered ...

Page 43: ...rking in field mode If this is not the case then switch to field mode as described in chapter 7 4 1 Project Settings Select Menu 1 New 2 Field Measurement 3 and enter the field parameters and the field name on the next page Confirm the entered values with Create 4 The recently added field will now be displayed in project view The field parameters can be modified later on but only as long as no tra...

Page 44: ...using the COMP button The compensation value is determined and stored along with the measurement data Step 4 Surveying a marked out area with SBL and PDA Select Measurement from the PDA s welcome screen and click on the field which is to be surveyed 5 Confirm you choice by clicking Select 6 Next screen will be Track Selection which lists all tracks that the system has calculated from your field pa...

Page 45: ...rection 8 on the stand by screen In any way the displayed direction needs to match your moving direction Select Menu Measurement Range 9 to modify the displayed measurement range Start the measurement by tapping any area on the display the Start button or the 0 button on the PDA keypad The measurement is started and the graph in the real time display is turning red The PDA gives an audible feedbac...

Page 46: ...e direction Once you have surveyed all tracks of a field you ll get back to the field selection screen A field which was completely surveyed cannot be selected again Step 5 Displaying data as color coded map Once a field was surveyed completely a zoom able color coded map of this area is available by selecting Menu Color coded map 10 By taping on the map various measurement values will be displaye...

Page 47: ...within the project You can create any number of fields in a project To do so select Menu New Borehole Field 1 Enter the name of the borehole field and the sensor you use in the following screen You can add different sensors in the Project Settings later to measure a borehole field with more than one sensors After pressing Create you will get to the Selection of Borehole In the Selection of Borehol...

Page 48: ...ired Single boreholes and borehole rows can be mixed up in one single field The borehole parameters can be modified at any time prior to the measurement A validity check is automatically conducted by the system for the entered parameters The systems checks e g if the rowlength is an integer multiple of the hole spacing The system corrects the values if required and informs the user about these cor...

Page 49: ...to 2000 boreholes per field To import more boreholes in one project split the import file and create separate fields within one project Please find an example of import possibilities in the figure below 1 Borehole name for local format 2 X Coordinate 3 Y Coordinate 4 Borehole name for WGS84 Format 5 Latitude 6 Longitude 7 Altitude optional The text file needs to be stored in the project folder The...

Page 50: ... the import settings MonSX enables you to adjust the format Local WGS84 the column delimiter Tabulator Semicolon and the Decimal delimiter Point Comma according to your text file After tapping Apply 15 again MonSX confirms the successful import by displaying the amount of imported boreholes 16 MonSX will ask you for borehole depth and point distance right before the measurement After the first bor...

Page 51: ...is is also true if the measurement range is being changed during the survey Compensate the SBL10 using the COMP button The compensation value is determined and stored along with the measurement data Measurement of Boreholes 7 6 3 After applying all relevant settings you can select the first borehole for measurement directly from the borehole plan in the borehole selection or from the borehole list...

Page 52: ...tapping Menu Measurement Range To start a borehole measurement lower the external probe with the mounted weight to the borehole bottom Keep the cable tight and ensure that the probe is not tilted in the borehole 1 Wait until the probe stops moving 2 Start measurement by tapping on the stand by screen or the Start Button 8 and start pulling with constant pace at once 3 Stop the measuring by tapping...

Page 53: ...BL10 53 69 Version 1 27 It is important to start and end measuring immediately when you start to pull respectively when the probe reaches the stop position Additionally a constant pace is essential to avoid stretched or compressed borehole measurement data ...

Page 54: ...rt 1 When the coordinate was found confirm your selection with Yes 2 The stand by screen will be displayed now which provides the following information a measurement range of real time data display b real time data display of measurement data c offset values stored with measurement data Select Measurement Range 3 to modify the displayed measurement range Start the measurement by tapping any area o...

Page 55: ...nce line will be displayed once the starting point was set This line is aligned in parallel to the previous track 5 which is displayed in blue A yellow point indicates during the survey the operators deviation from the reference line red in real time 6 Line measurements can be stopped at the track end New tracks can be added at any time ...

Page 56: ...ld measurements Referencing Field Measurements 7 8 1 Proceed as follows in order to reference a field measurement Select the field which is to be referenced Select Menu 1 Referencing 2 Select the Reference point 1 3 in the next screen Set this point by selecting Define reference point 4 To set the reference point select any track and set this tracks starting or ending point A tracks starting point...

Page 57: ...GPS Confirm with Yes 5 Repeat these steps to set reference coordinate 2 If only one reference coordinate is being set then the field will be shifted to this coordinate but it will not be aligned correctly It is recommended to use the starting point of the first track and the ending point of the last track for referencing to achieve the highest accuracy ...

Page 58: ... see figure below The first referenced borehole will be taken as reference coordinate if no reference coordinate is set up as described in Chapter 7 4 1 Project Settings After referencing a second borehole the field will be oriented to North and all other boreholes within the field will be spatially fitted to the referenced boreholes For this fitting always the farthest borehole from the reference...

Page 59: ... 49 33631 59 650 info sensys de www sensys de Manual SBL10 59 69 Version 1 27 Planned view GPS view ...

Page 60: ...cally for each track Field Measurements 7 9 1 Apart from automatically created DLM files the following export formats are available UXO Three UXO formats are available UXO Measurement data and corresponding position on even grid UXO ungridded Measurement data and corresponding position ungridded UXO V Measurement data and corresponding position in Vallon format Keep in mind UXO and DLM files conta...

Page 61: ...7 PRM The PRM format is only available for georeferenced fields A PRM file will be created for every measured track of the field Mark the field which is to be exported Select Menu Export 1 Export PRM transf 5 Click OK 4 to start the export and wait until the export is completed ...

Page 62: ...ed as follows Mark the borehole field to export Tap on Menu Export 1 Choose the file format 2 Confirm with Ok 3 and wait until the export is finished You can choose between the following formats DLM For each borehole a separate file is created UXO Measurement data and corresponding position on even grid UXO ungridded Measurement data and corresponding position ungridded UXO V Measurement data and ...

Page 63: ...ld is stored separately File names contain the current date PDA Date and time as listed below Boreholes additionally include the borehole name JJJJMMTT HHMMSS Pay attention to the correct PDA settings date and time Correct settings are mandatory to identify the data correctly by its file name at any time Whenever the PDA is connected to a PC via Windows Mobile Device Centre then the PDA date and t...

Page 64: ...r data transfer Once the PDA was recognized by the PC all data can be accessed by using the file manager Make sure Windows Mobile Device Centre is installed on the PC For data evaluation the SENSYS software MAGNETO also needs to be installed on the PC Laptop Data Transfer via USB flash drive 7 10 2 Please refer to Chapter 7 4 Projects for data transfer via USB flash drive 39 ...

Page 65: ...wer supply of the device The hinge joint needs to be kept clean at all times Otherwise the probe cannot be aligned correctly It is recommended to clean the device after each survey and to let it dry Damaged system components especially the probe as well as the control and display unit need to be replaced or repaired immediately Always use original spare parts from SENSYS for this purpose The repai...

Page 66: ...ENSYS for repair Data doesn t correspond to expectations of the operator Choice of incorrect measurement mode or measurement range Select a measurement mode range that corresponds to the survey type object to be located see chapter 4 3 No connection can be established between SBL10 and PDA Incorrect connection of Bluetooth dongle Check if Bluetooth dongle is plugged in correctly Bluetooth turned o...

Page 67: ...0 nT Sensor element spacing 400mm Point of reference 378 mm Misalignment 3 nT Resolution 0 2 nT Noise Cut off frequency 20 Hz Temperature drift 0 3 nT K Drift over time t b d Uncertainty of measurement 1000 nT 1 Stability 1 nT Linearity 4 nT 0 01 Compensation range n a Sensitivity absolute 5 0 V 75 000 nT Sensitivity gradiometer 0 13 V ÁT Output 5 0 V full scale Power supply 7 0 V to 15 V Current ...

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Page 69: ...Customer first Your SENSYS Team ...

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