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Instrumentation GDD Inc. 2018-11-09

13.2 Errors during the measuring process



Problem:

After initialization, the readings seem to drift.



Solutions:



As mentioned in the

Warnings

on the first page of this manual, it is highly recommended that you

leave the probe ON for one hour before taking the first measures.



If it is impossible to wait for one hour before taking measurement, re-initialize the probe
frequently.

Содержание MPP-EM2S Plus

Страница 1: ...MPP PROBE Model MPP EM2S with Android software Instruction Manual 860 boul de la Chaudière suite 200 Québec Qc Canada G1X 4B7 Tel 1 418 877 4249 Fax 1 418 877 4054 E Mail gdd gdd ca Web site www gdd ca ...

Страница 2: ... 2 Mineral Conductivity General Rules 5 3 Android software 6 4 Equipment List 7 5 Batteries 8 6 Probe buttons and switches 10 7 Starting 12 8 Display 23 9 Reading Modes 31 10 Manage Projects 34 11 Export Files 37 12 Readings interpretation 40 13 Troubleshooting 41 14 Technical Support 44 Table of contents ...

Страница 3: ... every 1 5 10 or 15 minutes By default the option 1 minute between every initialization is activated If you want to take measurements right away after turning on the probe we suggest that you initialize the probe every minute or for best results before each reading for the first 30 to 60 minutes This preventive procedure decreases the risk to take erroneous values that would be caused by weather v...

Страница 4: ...charge is low the value of the readings could be inaccurate and you could not be able to initialize the probe The specifications described in this Instructions Manual is valid at temperatures between 0 C and 70 C At temperatures lower than 0 C some specifications like the battery s life could be different ...

Страница 5: ...lcopyrite will induce a reading corresponding to a conductive zone In fact chalcopyrite even if it seems massive will often not produce an anomaly detectable by an EM survey Along the core the MPP EM2S probe will have a similar response as the EM response and will only indicate the conductors detectable by this type of survey The use of the MPP EM2S probe could therefore prevent you to beginning a...

Страница 6: ...ingle crystal However we have observed some very conductive samples of silver bearing galena Kamouraska and pyrite rich in gold Balmorals and Wrightbar mines Sphalerite arsenopyrite and stibnite are never conductive and are not detectable with EM and IP surveys Rich graphite beds can be more conductive than pyrrhotite Occasionally they are not conductive at all Graphite can also show all intermedi...

Страница 7: ...droid software is available on Google Play https play google com store apps details id com gddinstrumentation gddmpp Generally Android devices don t have any RS 232 port To use the probe with the serial communication cable you would need an USB RS 232 adapter like the one shown below You would need also a USB connector adapted to your Android device 3 Android software ...

Страница 8: ...less probe 2 Four 4 rechargeable AA batteries with charger 3 One 1 set of international adapters for AA batteries charger 4 One 1 MPP wall power supply with international plug kit universal voltage 5 One 1 standard serial communication cable 6 One 1 MPP Instruction Manual 7 One 1 MPP utilities CD ROM USB Stick 8 One 1 black carrying box Do not hesitate to communicate with GDD Instrumentation Inc i...

Страница 9: ...er to the probe With the MPP 1000 Series it is possible to use three AA batteries or the wall power supply included with the MPP set The use of another power supply than the one provided by GDD could damage the probe 5 3 Battery level indicator If the power of the probe is supplied by three AA batteries it is important to verify that the level of the batteries charge is sufficient Press and hold t...

Страница 10: ...4 hours 0 4 hours Red The batteries are not enough charged to supply the probe 2 3 minutes 2 3 minutes No lights on The batteries are absent or totally discharged 0 0 This information is an approximation only The time remained depends of the type of cells and the operating conditions 5 4 Recharging AA batteries Simply put the AA batteries in the charger and plug it in the wall using the 120 V plug...

Страница 11: ...o select the operating mode It is important to place the switch in the position wanted before turning the probe on The Cable and Wireless positions are used to operate with or without cable The Prog position is not used for normal operation If the operating mode must be changed during the operation the probe must be turned off before changing it 6 Probe buttons and switches ...

Страница 12: ...in the GDD MPP Android software and were designed to facilitate handling Pressing the both buttons together initializes the probe so it makes the same action as Initialize button in the GDD MPP Android software for the firmware versions starting from MPPi5_6 See Section 9 Reading Modes for more details 6 4 BI button See Section 5 3 Battery level indicator to know how to use this button ...

Страница 13: ...surement 1 Install the GDD MPP software on your Android device This software is available on Google Play https play google com store apps details id com gddinstrumentation gddmpp 2 Turn and pull the cap of the battery holder and insert 3 AA batteries into the probe Push and turn the cap to close it Or plug the wall external power supply in the power jack 7 Starting ...

Страница 14: ...le Wireless Prog switch in Wireless position 4 Turn on the probe with the On Off switch placed on the right side of the probe 5 On your Android device go to Settings Bluetooth verify that Bluetooth is ON find your MPP probe and pair it with the code 1234 ...

Страница 15: ...umentation GDD Inc 2018 11 09 14 6 Run the GDD MPP program Go to the Config menu Settings Connection Make sure that Connection type is Bluetooth and your MPP Probe is selected as Bluetooth device Config menu ...

Страница 16: ...t the different parameters you need to use see Section 10 Manage Projects according to the reading mode you chose see Section 9 Reading Modes Once the setting is finished come back to the GDD MPP software main screen keep the end of the probe far from metal objects point it towards the sky and initialize it by taping on Initialize button ...

Страница 17: ... Inc 2018 11 09 16 9 The initialization message will turn for few seconds and after this the reading screen should appear You are ready to take readings according to the reading mode you chose see Section 9 Reading Modes ...

Страница 18: ...oes not work 1 Connect the serial RS 232 cable with the adapters between the probe and your Android device Note You need to plug together three cables to make a serial RS 232 communication 1 Standard serial communication cable 2 USB Serial cable adapter 3 USB connector depends of the model of your Android device 3 2 1 ...

Страница 19: ...This software is available on Google Play https play google com store apps details id com gddinstrumentation gddmpp 3 Turn and pull the cap of the battery holder and insert 3 AA batteries into the probe Push and turn the cap to close it Or plug the wall external power supply in the power jack ...

Страница 20: ...Instrumentation GDD Inc 2018 11 09 19 4 Place the Cable Wireless Prog switch in Cable position 5 Turn on the probe with the On Off switch placed on the right side of the probe ...

Страница 21: ...Instrumentation GDD Inc 2018 11 09 20 6 Run the GDD MPP program Go to the Config menu Settings Connection Make sure that Connection type is Serial Config menu ...

Страница 22: ...t the different parameters you need to use see Section 10 Manage Projects according to the reading mode you chose see Section 9 Reading Modes Once the setting is finished come back to the GDD MPP software main screen keep the end of the probe far from metal objects point it towards the sky and initialize it by taping on Initialize button ...

Страница 23: ... Inc 2018 11 09 22 9 The initialization message will turn for few seconds and after this the reading screen should appear You are ready to take readings according to the reading mode you chose see Section 9 Reading Modes ...

Страница 24: ...sections of the main screen 8 Display Function menu Config menu Reading mode Project name Core name Core info and edit Add core Probe battery Memory count Current spacing Current depth Add spacing Measurements Time till next initializing Action buttons ...

Страница 25: ...n project see Section 10 Manage Projects 8 2 Function menu This menu contains the functions to manipulate data and projects 8 2 1 New Project Open Project Project Manager see Section 10 Manage Projects 8 2 2 Back Memory Allows to delete the last stored reading in the selected project and core ...

Страница 26: ... Inc 2018 11 09 25 8 2 3 Graph This function allows to switch between text and graph data view In graph view you can PAUSE RUN graphic by clicking on the graphic area You can also ZOOM IN OUT the scale of the vertical axe ...

Страница 27: ...sults This function allows to view all previously saved readings in the current project 8 2 5 Export Files see Section 11 Export Files Select the core that you want to see Select the number of readings on the page Zoom IN OUT the view Navigate the pages ...

Страница 28: ...Instrumentation GDD Inc 2018 11 09 27 8 3 Config menu The Config menu contains following items 8 3 1 Settings ...

Страница 29: ...n two initializations The default time is one minute Otherwise you could also set the time for either 5 10 15 30 or 60 minutes The new time set will be activated after the next initialization 8 3 1 2 Connection defines the type of connection Bluetooth or Serial cable and the Bluetooth device to use 8 3 2 Help offers the links for viewing instruction manuals in three languages English French and Sp...

Страница 30: ... conductor the MPP EM2S probe will measure the magnetic susceptibility value at all times COND MHOS M Conductivity measured in MHOS M It is independent on the quantity of conductive material in the sample HF Response and independent on the distance between the probe and the sample 8 10 Memory count shows the number of readings stored in the current project 8 11 Current depth This indicator shows t...

Страница 31: ...t to the probe Initialize use this button to initialize the probe Mem use this button to take a reading in Punctual mode and Single Reading mode REC use this button to START STOP recording the readings in Continuous mode Stamp use this button to move the Depth position on core in Continuous mode ...

Страница 32: ...ncremented by the value of Spacing and the next reading will be stored at this Depth position 9 2 Continuous mode In this mode the readings are recorded automatically according to the recording time interval you need 0 1 s 0 2 s 0 5 s 1 0 s 2 0 s 5 0 s By clicking MEM button in the GDD MPP software or pressing MEM button on the probe you START or STOP recording readings To mark the positions you c...

Страница 33: ...aking a single reading After the probe is initialized you have 15 seconds to take a reading before you have to reinitialize the probe The reading values will be displayed on the screen with a resolution of 10 6 SI for readings lower than 10 x 10 3 SI The reading will remain there until the probe is initialized again ...

Страница 34: ...3 This reading is associated to the selected Core and taken at the current Depth position If the current Spacing is not 0 the current Depth is incremented by the value of Spacing and the next reading will be stored at this Depth position ...

Страница 35: ...e and default configuration This is a good way to let you manipulate the probe quickly instead of imposing creation of project Don t forget to modify DemoProject or create another one if you need a real project with proper configurations To open an existing project go to the Function menu Open Project To create a new project go to the Function menu New Project You will be invited to enter the name...

Страница 36: ...trumentation GDD Inc 2018 11 09 35 While creating a project you have to define a core This is the first core in the project You will be able to add any core with Add core button on the main screen Add core ...

Страница 37: ... Foot depends of the project configuration made previously The Diameter is always in millimeters Select the Half check box if you have a split core When you are scanning a split core sample always put the MPP probe on the flat side All project configurations are automatically saved when you exit from the software To delete or edit projects go to Function menu Project Manager Tap with your finger o...

Страница 38: ... Android device the folder name and path may vary between Android devices There is one file of selected format by project example Project1 xls Project2 xls Project1 txt Project2 txt etc The XLS Excel format is the most useful but there is one limitation it cannot contains more than 65536 readings A normal project should not contain so many readings but in case of exceeding you can use XML and TXT ...

Страница 39: ...ant in order to find the file you need The file extension is txt Then select the file you want to open and click on Open You should now see Text Import Wizard Step 1 of 3 Select Fixed width Select Next Text Import Wizard Step 2 of 3 Make sure that break lines separate the following titles U position 35 37 SYM position 37 41 and SYM position 53 57 Select Next Text Import Wizard Step 3 of 3 Select F...

Страница 40: ... file at this point To do so go to the tool bar and select File Save as In the Save in field choose the folder in which you want to save it In the Save as type field select Microsoft Excel Workbook xls In the File name field choose the name you want to save Click on Save button ...

Страница 41: ...re the magnetic susceptibility value In the presence of pyrrhotite combined with a small amount of magnetite or no magnetite at all the magnetic susceptibility will be measured COND MHOS M Calculated Conductivity it is important to note that in the presence of some magnetite in the sample the MPP EM2S probe will overestimate the conductivity value The sign appearing before conductivity value indic...

Страница 42: ...e probe is not responding and cannot connect to the Bluetooth communication Solutions In Config menu Settings Connection Bluetooth Device verify that the probe serial number corresponds to the Bluetooth Device selected Verify the batteries of the probe see Section 5 3 Battery level indicator 13 Troubleshooting ...

Страница 43: ...tion the readings seem to drift Solutions As mentioned in the Warnings on the first page of this manual it is highly recommended that you leave the probe ON for one hour before taking the first measures If it is impossible to wait for one hour before taking measurement re initialize the probe frequently ...

Страница 44: ... The probe disconnects during measuring process Solutions In Config menu Settings Connection Bluetooth Device make sure to select the correct Bluetooth Device you are using Verify the batteries of the probe see Section 5 3 Battery level indicator ...

Страница 45: ...siness hours Pierre Gaucher Home phone 1 418 657 5870 Cell phone 1 418 261 5552 Régis Desbiens Home phone 1 418 658 8539 Cell phone 1 418 570 3408 Any GDD MPP probe that breaks down while under warranty or service will be replaced free of charge upon request for the duration of repairs subject to instruments availability except for shipping charges This service is subject to instrument availabilit...

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