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Geonics Limited EM61MK2win Operating Instructions Manual

Data logging system for windows 10 based field tablet computer
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OPERATING INSTRUCTIONS
EM61-MK2 DATA LOGGING SYSTEM
FOR WINDOWS 10 BASED FIELD TABLET COMPUTER
EM61MK2win
Version 1.00
May, 2018
G
L
eonics
imited
1745 Meyerside Drive, Mississauga, Ontario, Canada L5T 1C6
Tel: (905) 670 9580
Fax: (905) 670 9204
E-mail: geonics@geonics.com

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Summary of Contents for Geonics Limited EM61MK2win

  • Page 1 OPERATING INSTRUCTIONS EM61-MK2 DATA LOGGING SYSTEM FOR WINDOWS 10 BASED FIELD TABLET COMPUTER EM61MK2win Version 1.00 May, 2018 eonics imited 1745 Meyerside Drive, Mississauga, Ontario, Canada L5T 1C6 Tel: (905) 670 9580 Fax: (905) 670 9204 E-mail: geonics@geonics.com...

  • Page 3: Table Of Contents

    6.4 Stand By Mode Field Options ............. 35 View Data Files ..................43 Appendix A ....................... 47 A.1 Description of Data File in EM61MK2win Format ......... 47 A.2 Conversion Factors ................50 A.3 Example of File in EM61MK2win Format ..........52 Appendix B .......................

  • Page 5: Introduction

    The EM61MK2win will accept NMEA-0183 compatible data from a GPS receiver directly con- nected to an Allegro field computer. GPS data which are embedded in the EM61MK2win data file can be processed later in the Geonics DAT61MK2 program. The connected GPS must be able to stream NMEA-0183 compatible messages.

  • Page 6: Program Requirements

    If the program file is included separately on the DAT61MK2 CD disk, or downloaded from the web site it can be installed by copying the EM61MK2win.exe file to any directory on your hard disk. This can be performed by using Windows Explorer.

  • Page 7: Main Screen

    1.4 Main Screen The Main Screen always appears after the program is started. It contains the name of the program, its version number, and a list of buttons representing the available options. The EM61MK2win Main Screen is displayed below. These options are selected by clicking on buttons, or from keyboard using TAB/ENTER or shortcuts indicated by underline label characters.
  • Page 8 This dialog provides also choice of linear or compressed amplitude used for profile display. View Files This option can be used to open collected data file and display survey line profiles. Exit This option will terminate the program execution. Geonics Limited...

  • Page 9: Survey Setup

    Standard for the EM61-MK2 or High Power if EM61-MK2 High Power (HP) modification is used. Set the EM61-MK2 mode of operation by selecting an item from the drop-down listbox labeled EM61 Mode. Available modes are: Auto, Wheel, and Manual. These modes of operation are described below. EM61MK2win Data Logging System (DAS70-M2)
  • Page 10 Readings will be taken only while the manual trigger (switch on the logger cable) is pressed. This mode may be used only in very specific applications since the highly dynamic EM61-MK2 response requires finely spaced data points. Please note that when Manual mode is selected option Reading/second is not available. Geonics Limited...
  • Page 11 (name) of the next survey line. Sequence When this option is highlighted and drop-down box is expanded use mouse or use Down or Up cursor key to toggle between two available settings: Alternate and One Way. EM61MK2win Data Logging System (DAS70-M2)
  • Page 12 To return to original settings (state before this dialog was selected) click on the Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the program will return to the Main Screen. Geonics Limited...

  • Page 13: System Setup

    0.5 m, 1 x 1 m, or 0.5 x 0.5 m) the size of the sensor must be specified before monitoring the instrument output. Select proper size of the EM61-MK2 sensor in the drop-down list box labeled Sensor Size. EM61MK2win Data Logging System (DAS70-M2)
  • Page 14 EM61 Port The number of serial port that is assigned to the EM61-MK2. Available selections: COM1 to COM60. The program default is COM1. Communication parameters for the selected Geonics Limited...
  • Page 15 Mesa2 is used the best setting is <ENTER> key, since user specified keys P1, P2, and P3 may have various assignment, and when <any key> is selected then only four arrow keys and Enter key are reliable. EM61MK2win Data Logging System (DAS70-M2)
  • Page 16 To return to original settings (state before this dialog was selected) click on the Cancel (or window X) button or press Esc key. All parameters will be reset to initial settings and the program will return to the Main Screen. Geonics Limited...

  • Page 17: Set Port For Gps & Monitoring

    TAB key and then by using up or down arrow keys select one of two available items: Enabled and Disabled. EM61MK2win Data Logging System (DAS70-M2)
  • Page 18 Clicking on the down arrow next to the text box labeled Baud Rate opens a drop-down box showing the available parameters, or when the keyboard is used activate this text box by pressing TAB key and then by using up or down arrow keys select one of available items. Geonics Limited...
  • Page 19 To return to original settings (state before this dialog was selected) click on the Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the dialog window will disappear. EM61MK2win Data Logging System (DAS70-M2)

  • Page 20: Monitoring Gps Receiver Output

    TAB key and ENTER keys, or by using shortcuts (pressing underlined letter keys). This screen is shown below. As soon as the EM61MK2win screen is in terminal mode and the GPS is streaming data, each mes- sage transmitted by GPS receiver will appear in the top portion of the display (the end may be cut off if an NMEA message is longer than screen).
  • Page 21 NMEA Message dialog. An example of a command that will enable the NMEA mes- sage SAT is given in the below figure (it is assumed that the GPS receiver output serial port is A). EM61MK2win Data Logging System (DAS70-M2)
  • Page 22 In addition, some GPS systems do not accept commands sent by the serial port at all. The configuration of these type of receivers can be updated only by the controlling device (usually GPS logger, controller, or the receiver panel keys). Geonics Limited...

  • Page 23: Display Options

    To change colour of each profile click on the corresponding button (with colour line) labeled Color (click to change). The following dialog titled Color will appear. Select desired colour by clicking on a colour box (the selected colour box will be highlighted). EM61MK2win Data Logging System (DAS70-M2)
  • Page 24 Survey Setup dialog. To return to original settings (state before this dialog was selected) click the Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the dialog window will disappear. Geonics Limited...

  • Page 25: Logging Data

    It is assumed that the instrument is turned ON prior to using this option. If the instrument is OFF or the instrument console is not connected to the computer the following message shown below will appear. EM61MK2win Data Logging System (DAS70-M2)
  • Page 26 (below the profile window) and maximum (above the profile window). The remaining bottom section contains a window with current EM61-MK2 readings, three frames (File Parameters, Line Parameters, and GPS information), and command buttons located on the right side of the screen. Geonics Limited...
  • Page 27 GPS), Appendix B, and to GPS manuals for more information about GPS parameters. Two bottom lines of the frame give current Latitude and Longitude of the instrument position (datum WGS1984). Position is updated with frequency of GPS receiver stream. EM61MK2win Data Logging System (DAS70-M2)

  • Page 28: Description Of Monitoring Mode Options

    Off a message "No Communication, trying" will be displayed in numeric values window. The mes- sage is highlighted by red background to alert operator as fast as possible. The EM61MK2win will try to re-establish communication and after the problem is corrected the program will start com- munication automaticaly.
  • Page 29 (navigate to the button by pressing TAB key and when highlighted press ENTER key, or use shortcut - press key U). At this moment the computer takes 50 readings and calculates the instrument offset. EM61MK2win Data Logging System (DAS70-M2)
  • Page 30 After OK button is clicked (or shortcut key O is pressed) the window displays timer with elapsed seconds and EM61-MK2 readings. This display lasts for 60 seconds. During this time please follow the instructions provided on the EM61MK2win display. Geonics Limited...
  • Page 31 +/- 10% tolerances then a message “CALIBRATION OK” will be displayed (see below). Otherwise, if the program determines that the reading is outside of the test values range the corresponding message “CALIBRATION FAILED” is displayed. EM61MK2win Data Logging System (DAS70-M2)
  • Page 32 It will not affect EM61-MK2 readings. After the nulling is completed (less than 5 seconds) the External QC coil Calibration window is displayed (Figure below). Geonics Limited...
  • Page 33 The logger will determine if the instrument has passed test. If after activating the QC coil, the program determines that the reading is inside the standard values within +/- 10% tolerances then a message “CALIBRATION OK” will be displayed. EM61MK2win Data Logging System (DAS70-M2)
  • Page 34 This option is available by clicking on the command button labeled Scale Rdgs. or directly from keyboard by using shortcut key <R>. The Readings Scale dialog will be displayed. It contains two text boxes for Minimum and Maximum values of a new scale for profile plot. Current settings (minimum and maximum Geonics Limited...

  • Page 35: Stand By Mode

    Square Root of the amplitude. In compressed amplitude scale 0 to 100 corresponds to 0 to 10,000 mV, and compressed range 0 to 200 corresponds to 0 to 40,000 mV. Plotting data in compressed amplitude allows you to show EM61MK2win Data Logging System (DAS70-M2)
  • Page 36 In the Stand By mode the station number will not change. Stations in the EM61MK2win program are incremented by station increment value after each reading is written to the data file.
  • Page 37 Off a message "No Communication, trying" will be displayed in numeric values window. The mes- sage is highlighted by red background to alert operator as fast as possible. The EM61MK2win will try to re-establish communication and after the problem is corrected the program will start com- munication automatically.

  • Page 38: Logging Mode

    Off a message "No Communication, trying" will be displayed in numeric values window. The mes- sage is highlighted by red background to alert operator as fast as possible. The EM61MK2win will stop collecting data and will try to re-establish communication. After the problem is corrected the program will start communication automaticaly.

  • Page 39: Stand By Mode Field Options

    Click on the GO button, or while using the keyboard press shortcut key <G> or if the button is a default button (highlighted) press <ENTER>. The logging window in Stand By mode will change to Logging mode and logging data starts immediately. EM61MK2win Data Logging System (DAS70-M2)
  • Page 40 The New Station dialog is displayed (see Figure below on the left). Current survey line, Start and Current station are displayed at the top of the dialog. The New Station can be entered in the provided edit box labeled New Station. Geonics Limited...
  • Page 41 Logging window in Stand By mode. To ignore an entry and return to Stand By mode click on the Cancel (X) button or press Esc key, the dialog window will disappear and measurements can be continued. EM61MK2win Data Logging System (DAS70-M2)
  • Page 42 Stand By mode. To return to Stand By mode and current display options (state before this dialog was se- lected) click on the Cancel (X) button or press Esc key, the dialog window will disappear. Geonics Limited...
  • Page 43 During data collection (in Stand By mode) a confirmation message will be displayed (there is no such message if Nulling is performed in Monitoring mode) before actual operation is applied (see below Figure on the left). EM61MK2win Data Logging System (DAS70-M2)
  • Page 44 QC coil calibration please click on the Int. QC button again. The logging program will determine if the instrument has passed test. If after acti- vating the QC coil, the program determines that the reading is inside the standard Geonics Limited...
  • Page 45 After OK button is tapped (or shortcut key O is pressed) the window displays timer with elapsed seconds and EM61-MK2 readings. This display lasts for 60 seconds. During this time please follow the instructions provided on the computer display. EM61MK2win Data Logging System (DAS70-M2)
  • Page 46 During data collection (in Stand By mode) a confirmation message will be displayed (there is no such message if Exit is performed in Monitoring mode) before program exits logging window. After above message is confirmed the program stops logging, closes data file and returns to Main Screen. Geonics Limited...

  • Page 47: View Data Files

    To open the data file click or tap on the button labeled File or execute this option using the key- board (navigate to the button by pressing TAB key and when highlighted press ENTER key, or use shortcut - press key F). The Open Data File dialog is presented below. EM61MK2win Data Logging System (DAS70-M2)
  • Page 48 There are three windows describing file, survey line, and station parameters. The left window labeled File Parameters lists file name, number of survey lines in the file, total number of stations, and total number of GPS positions if GPS positioning was used during the survey. The center window Geonics Limited...
  • Page 49 To change range of displayed values click on the Scale Rdgs button. A dialog labeled Reading Scale will be displayed. Specify new Minimum and Maximum values and then press OK. The plot area will be re-drawn with new range values. EM61MK2win Data Logging System (DAS70-M2)
  • Page 50 < moves the bar one station to the left, button labeled > moves the bar one station to the right. To exit the View Data Files window tap or click on the button labeled Exit. The program will return to Main Screen. Geonics Limited...

  • Page 51: Description Of Data File In Em61Mk2Win Format

    Appendix A A.1 Description of Data File in EM61MK2win (R61) Format Each record contains 24 characters, including line feed at the end of each record. Header of the file (contains six records starting with characters E, H, O, O, O, and O)
  • Page 52 2’s complement Hex number of TX current lower byte of TX current fraction of current (5h 5l), Hex number Time Stamp time in ms from the Windows start (resets every 49.7 days) Line Feed character Geonics Limited...
  • Page 53 The GPS sequence may contain 4 to 6 records. Component of the GGA message may differ in length, however they are placed in the same number of columns. Refer to Appendix B (section B.2) for definition of each component of GGA data message. EM61MK2win Data Logging System (DAS70-M2)

  • Page 54: Conversion Factors

    Further each channel is normalized by current following formula: Standard Unit Channel = Channel x 3000/Current Hand Held Unit Channel = Channel x 1800/Current where, current is a value represented by 5h, 5l, and 6 in EM61MK2 data file (see section B.1) Geonics Limited...
  • Page 55 Table of Ranges Determined by the EM61-MK2 Microprocessor HEX Ch1 HEX Ch1 HEX Ch1 EM61MK2win Data Logging System (DAS70-M2)

  • Page 56: Example Of File In Em61Mk2Win Format

    A.3 Example of Data File in EM61MK2win (R61) Format The Em61MK2 data file records are written in binary format, therefore the file may have different shape when displayed or printed, depending on particular video or pronter settings. EM61MK2 W100GPS000 H 042320A 0.200...

  • Page 57: Using The Em61Mk2Win With A Gps Receiver

    Baud Rate (if it is supported by the employed GPS receiver) in Set GPS Port menu. The EM61MK2win dedicates portion of the display and shows GPS status in a frame box. A number following the label Position provides the number of GPS positions saved in the current data file.

  • Page 58: Description Of Gga And Gsa Data Messages

    Mode, 2 = 2D, 3 = 3D d2-d13 Satellites used in position computation (range 0 to 32) PDOP (range 0 to 99.9) HDOP (range 0 to 99.9) VDOP (range 0 to 99.9) Checksum <CR><LF> Carriage return and Line Feed Geonics Limited...

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